Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 14 20 Bangsub LEE Department of College of General Education, Chung-Ang University, Seoul, Republic of Korea Wooyoung CHUNG Department of College of General Education, Chung-Ang University, Seoul, Republic of Korea 2020 01 07 Background: Regular physical activity lowers or prevents the risk of heart disease, diabetes, some cancers, the development of hypertension, and death from these diseases through a reduction in inflammation. Cytokines, such as interleukin (IL)-6, IL-18, tumor necrosis factor-alpha (TNF-α), and C-reactive protein (CRP) are major markers representing the inflammatory process. This study aimed to investigate cytokine mRNA expression levels of IL-6, IL-18, TNF-α, and CRP in hepatocytes from breast cancer xenograft mice with or without moderate exercise. Methods: Each of the 5 mice at SP Korea Company, Seoul, Korea in 2015 were randomly divided into 3 groups: control (CTL), breast cancer (BC), and breast cancer exercise (BCEX). The inflammatory markers were analyzed in 10-week-old female Balb/C nude mice hepatocytes (n = 15; CTL = 5, BC = 5, BCEX = 5). Moderate intensity physical activity in mice was performed on a treadmill at an intensity of 18 m/min for 12 weeks, at 30 min for 5 days per week. Results: IL-6, IL-18, TNF-α, and CRP mRNA expression levels of the BCEX group were significantly decreased compared to those of the BC group (P < 0.05), with no difference to the CTL group. Conclusion: There might be a reduced inflammatory process via a reduction in TNF-α, IL-6, IL-18, and CRP expression in breast cancer mice that were subjected to moderate intensity exercise. https://ijph.tums.ac.ir/index.php/ijph/article/view/19354 https://ijph.tums.ac.ir/index.php/ijph/article/download/19354/6625

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 1 13 Mahmoud KHODADOST Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran Khadije MAAJANI Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Abbas ABBASI-GHAHRAMANLOO Department of Public Health, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran Morteza NASERBAKHT Mental Health Research Center, Iran University of Medical Sciences, Tehran, Iran Ebrahim GHODUSI Mental and Social Health Office, Ministry of Health, Tehran, Iran Fatemeh SARVI Department of Epidemiology, School of Health, Larestan University of Medical Sciences, Larestan, Iran Azar MOHAMMADZADEH Clinical Research Development Center, Aliasghar Hospital, Iran University of Medical Sciences, Tehran, Iran Seyed Abbas MOTEVALIAN Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran Ahmad HAJEBI Research Center for Addiction & Risky Behaviors (ReCARB), Psychiatric Department, Iran University of Medical Sciences, Tehran, Iran 2020 01 07 Background: The rise in popularity of waterpipe smoking among younger people cause increase its deleterious effects on health in recent years. The aim of this study was to estimate the pooled prevalence of water-pipe smoking in university students in Iran. Methods: We performed the literature search from 1946 to January 21, 2019, in several international and national databases such as Medline/PubMed, Web of Science, Scopus, Google Scholar, Magiran, Iranmedex, and IranPsych. To investigate the between-study heterogeneity we used the chi-squared test and I2 index. We used a random-effects model to estimate the pooled prevalence of water-pipe smoking. The potential source of heterogeneity was assessed by subgroup analysis and meta-regression. Results: According to the eligibility criteria, we included 37 relevant studies in our meta-analysis. The pooled prevalence of lifetime water-pipe smoking was 25% (95% CI: 22-29) and in male and female subgroups was 37% (95%CI: 30-45), 17% (95%CI: 15-19) respectively. The pooled prevalence of water-pipe smoking in last year was 21% (95%CI: 16-25) and in last month was 8% (95%CI: 5-11). Results of meta-regression analysis showed that there was not any significant association between suspected variables and the prevalence of water-pipe smoking. Conclusion: The higher prevalence rate of water pipe smoking among university students indicates the emergency need for planning preventive program. https://ijph.tums.ac.ir/index.php/ijph/article/view/19353 https://ijph.tums.ac.ir/index.php/ijph/article/download/19353/6624

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 186 188 Jung-Hwa KIM Gwangju Buk-Gu Addiction Management Center, Gwangju, Korea Young-Ran KWEON Department of Nursing, Chonnam National University, Gwangju, Korea 2020 01 07 No Abstract. https://ijph.tums.ac.ir/index.php/ijph/article/view/19380 https://ijph.tums.ac.ir/index.php/ijph/article/download/19380/6645

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 167 172 Vahid MASHAYEKHI GOYONLO Cutaneous Leishmaniasis Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Abdolreza NOROUZY Biochemistry of Nutrition Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Mohsen NEMATI Biochemistry of Nutrition Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Pouran LAYEGH Cutaneous Leishmaniasis Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Saeed AKHLAGHI Deputy of Research, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Ahmad Reza TAHERI Cutaneous Leishmaniasis Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Bita KIAFAR Cutaneous Leishmaniasis Research Center, Mashhad University of Medical Sciences, Mashhad, Iran 2020 01 07 Background: Old world cutaneous leishmaniasis (CL) is known as a self-healing cutaneous parasitic infection. Host immunity has a fundamental role in the course of this infection. This study was designed to investigate the relationship between nutritional status and vitamin A intake with the clinical course of CL. Methods: Overall, 250 patients with CL attending a dermatology clinic in Imam Reza Hospital Mashhad, Iran, were enrolled from Apr 2011 to Aug 2012. For data gathering, a semi-quantitative 302-item food frequency questionnaire was utilized. They received routine treatment protocols for leishmaniasis and 1 year of follow-up Results: As for the 149 patients who completed the study, a deficiency of macro and micronutrients, particularly vitamin A, was significantly related to a chronic clinical disease course. Conclusion: Imbalanced or insufficient nutritional intake including vitamin A deficiency, may influence the clinical course of CL. https://ijph.tums.ac.ir/index.php/ijph/article/view/19375 https://ijph.tums.ac.ir/index.php/ijph/article/download/19375/6642

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 21 29 Xiaofei WU Department of Neurology, Wuhan General Hospital of Guangzhou Military, Wuhan 430070, P.R. China 2020 01 07 Background: We aimed to investigate the expressions of miR-21 and miR-210 in the breast cancer tissue and their correlation with clinicopathological features and prognosis. Methods: A retrospective analysis was performed on 68 patients with breast cancer treated surgically in Wuhan General Hospital of Guangzhou Military in 2014-2015. The breast cancer tissue and the adjacent normal tissue were collected from the patients. Quantitative real-time PCR (qRT-PCR) was used to detect the expression levels of miR-21 and miR-210 in the breast cancer and adjacent normal tissues. Results: According to qRT-PCR, the expression levels of miR-210 and miR-21 in the breast cancer tissue were significantly higher than those in the adjacent normal tissue (P<0.05), which were significantly correlated with lymph node metastasis, clinical staging and differentiation of patients (P<0.05). miR-21 and miR-210 were significantly positive correlated in both breast cancer tissues and adjacent normal tissues (r=0.7014, 0.7502, P<0.001). The survival rate in the miR-210 high expression group was significantly lower than that in the miR-210 low expression group (P<0.05), whereas there was no significant difference between the miR-21 high and low expression groups. Conclusion: miR-21 and miR-210 are highly expressed in the breast cancer tissue and significantly correlated with lymph node metastasis, clinical staging and differentiation. miR-210, the up-regulated expression of which is related to the poor prognosis of patients with breast cancer, may be a potential prognostic indicator for breast cancer, which can be used to judge the prognosis. https://ijph.tums.ac.ir/index.php/ijph/article/view/19355 https://ijph.tums.ac.ir/index.php/ijph/article/download/19355/6626

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 189 190 Di WU School of Economics and Management, Xi’an University of Technology, Xi’an, China Juhong CHEN School of Economics and Management, Xi’an University of Technology, Xi’an, China Ruijun ZHANG School of Economics and Management, Xi’an University of Technology, Xi’an, China 2020 01 07 No Abstract https://ijph.tums.ac.ir/index.php/ijph/article/view/19381 https://ijph.tums.ac.ir/index.php/ijph/article/download/19381/6646

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 173 180 Neveen Magdy RIZK Environmental Virology Lab., Department of Water Pollution Research, National Research Center, Giza, Egypt Abdou Kamal ALLAYEH Environmental Virology Lab., Department of Water Pollution Research, National Research Center, Giza, Egypt 2020 01 07 Background: In 2013, WHO estimated the annual diarrheal mortality rate among children less than five years in Egypt was 24 deaths per 100.000, 2% was due to rotavirus infection. Methods: Eight water samples were collected monthly from the Nile water stream passing through Giza over 12 months during June 2016 to May 2017. Totally, ninety-six water samples were collected and concentrated for the detection of rotavirus group A (RV-A) using RT-PCR. Multiplex semi-nested RT-PCR was performed to identify the genotypes P and G of RV-A. Results: The detection rate of RV-A was 18.75% (18/96), whereas the rate of rotavirus genotypes G and P were 61% (11/18) and 50% (9/18), respectively. Rotaviruses G1P[8] and G1P[4] were the most common genotypes identified in our survey. In addition, the seasonal distribution findings demonstrated that the highest detection rate was 37.5% in the winter season, followed by 20.8%, 12.5% and 4% in spring, autumn and summer, respectively. Conclusion: Multiplex semi-nested RT-PCR is a useful method for rapid detection and genotyping of RV-A in surface water samples. https://ijph.tums.ac.ir/index.php/ijph/article/view/19376 https://ijph.tums.ac.ir/index.php/ijph/article/download/19376/6655

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 30 36 Jianxin MA Department of Health Care, 305 Hospital of Chinese PLA, Beijing 100017, P.R. China Lian CUI Department of Health Care, 305 Hospital of Chinese PLA, Beijing 100017, P.R. China Wenjin HUO Department of Health Care, 305 Hospital of Chinese PLA, Beijing 100017, P.R. China Guanghui WANG Department of Health Care, 305 Hospital of Chinese PLA, Beijing 100017, P.R. China Xin QUAN Department of Echocardiography, Fuwai Hospital, Peking Union Medical College, Beijing 100017, P.R., China Jinping ZHANG Medical Department, 305 Hospital of Chinese PLA, Beijing 100017, P.R. China 2020 01 07 Background: The correlation between postoperative deep venous thrombosis (DVT) and inflammation in patients with permanent cardiac pacemaker implantation was analyzed. Methods: A total of 130 cases undergoing permanent pacemaker implantation in the 305 Hospital of Chinese PLA and Fuwai Hospital from May 2014 to February 2017 were selected. Of the 130 cases, 60 patients complicated with DVT were selected as the observation group, and the remaining 70 cases without complications of DVT were selected as the control group. The relationship and influence of various factors were explored. Results: The number of patients smoking and the number of subjects with DVT history in the observation group were higher than those in the control group. In the observation group, plasminogen activator inhibitor (PAI)-1: Ag, PAI-1: Ac, thrombin-activated fibrinolysis inhibitor (TAFI): Ag, and TAFI: Ac levels were higher than those in control group (P<0.05). The levels of inflammatory factors of the peripheral blood of the observation group were significantly higher than those of the control group (P<0.05). In the correlation analysis of serum inflammatory factors and coagulation factors, CRP, IL-6, IL-10 were positively correlated with PAI-1: Ag level. Age, BMI, smoking history, number of implanted electrodes, DVT history, duration of immobilization and inflammatory factor levels had independent predictive value on postoperative complicated DVT. Conclusion: The serum inflammatory factors are closely associated with postoperative DVT in patients implanted with permanent cardiac pacemaker, and the serum inflammatory factors are a good reference for the evaluation of DVT. https://ijph.tums.ac.ir/index.php/ijph/article/view/19356 https://ijph.tums.ac.ir/index.php/ijph/article/download/19356/6627

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 191 192 George IMATAKA Department of Pediatrics, Dokkyo Medical University, Tochigi, Japan Shigemi YOSHIHARA Department of Pediatrics, Dokkyo Medical University, Tochigi, Japan 2020 01 07 No Abstract https://ijph.tums.ac.ir/index.php/ijph/article/view/19382 https://ijph.tums.ac.ir/index.php/ijph/article/download/19382/6647

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 181 185 Alireza BADIRZADEH Department of Parasitology and Mycology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran Saber RAEGHI Department of Laboratory Sciences, Maragheh University of Medical Sciences, Maragheh, Iran Vahid FALLAH-OMRANI Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran AND Department of Biotechnology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran Soheila ROUHANI Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2020 01 07 Background: The main objective of the current study was to investigate on the cryopreservation of protoscoleces of Echinococcus granulosus, a causative agent of cystic hydatidosis in man. Methods:  This study was conducted on isolated protoscoleces from hydatid cysts infected livers collected from slaughterhouse of Tehran, Iran in 2016. Viability of protoscoleces was evaluated by dye test. Cryopreservation of isolated protoscoleces in the presence of Dimethylsulfoxide (DMSO) and glycerol using a three-step cooling protocol involving an initial period at -20 °C, -80 °C and liquid nitrogen was performed. Results: The mean viability rate of 10% DMSO and 15% glycerol were 9% and 8% respectively. The protoscoleces of Echinococcus granulosus have been successfully thawed and recovered after 6 months storage in liquid nitrogen. Conclusion: Cryopreservation method needs to be improved for each species of helminthes and can be useful for other immunological and laboratorial studies. https://ijph.tums.ac.ir/index.php/ijph/article/view/19377 https://ijph.tums.ac.ir/index.php/ijph/article/download/19377/6644

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 37 45 Qing LU Xuzhou Central Hospital, Xuzhou 221009, P.R. China 2020 01 07 Background: Continuously deeper reform of public hospitals has put forward the need to innovate the philosophy and system of large medical equipment operation and management, and the phenomenon featuring “more attention to purchasing and less attention to management” need to be turned around. Methods: This research took use of information management to set up ID fields (unique number) for target stand-alone equipment; integrated statistics functions of HIS, PACS, LIS, RIS and equipment management system to get the basic operation data; informationized the work flow and reform technology to set up a post evaluation indictor system for the performance of stand-alone equipment; compared the service condition of newly purchased equipment with the feasibility application of relative department from various dimensions; designed objective post-evaluation indicators from various angles to scientifically manage existing medical equipment and support decision-making of new application for purchasing medical equipment. Results: Application performance of stand-alone equipment and clinical departments were ranked in a standardized manner. Decision-making mode based on data case of stand-alone equipment was set up. Net present value was evaluated. However, re-purchasing the instrument did not continuously increase the contribution of each instrument. The laboratory can purchase new instruments again, while the imaging department is not recommended to purchase. Conclusion: The performance evaluation mechanism based on information construction for large stand-alone medical equipment and its support for decision-making of purchasing is of great significance to improve the service life of equipment, exert the maximum effect and reduce economic waste. https://ijph.tums.ac.ir/index.php/ijph/article/view/19357 https://ijph.tums.ac.ir/index.php/ijph/article/download/19357/6628

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 08 193 195 Ahasanul HAQUE Department of Business Administration, International Islamic University Malaysia, Kuala Lumpur, Malaysia Naila ANWAR Department of Business Administration, International Islamic University Malaysia, Kuala Lumpur, Malaysia Farzana YASMIN Faculty of Science, Lincoln University, Jalan Stadium, Kelana Jaya, Malaysia Arun KUMAR TAROFDER Faculty of Business Management and Professional Studies, Management and Science University, Selangor, Malaysia Section 13, 40100 Shah Alam, Selangor Darul Ehsan, Malaysia Nazmul Mohammad Hassan MAZIZ Graduate School of Medicine, Perdana University, Jalan MAEPS, Perdana, Malaysia 2020 01 08 No Abstract https://ijph.tums.ac.ir/index.php/ijph/article/view/19384 https://ijph.tums.ac.ir/index.php/ijph/article/download/19384/6648

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 46 55 Se-Young JU Major in Food Science, College of Biomedical and Health Science, Konkuk University, Chungju, Korea 2020 01 07 Background: The quality of out-of-home foods is an increasingly important issue due to increasing popularity of eating out. The objective of this study was to analyze the relationship of eating-out frequency with general characteristics, dietary habits, and nutrient intakes among Korean adults. Methods: This study collected data from 2010- 2015 KNHANES. The total number of participants was 33,427 Korean adults aged 19 years and older. All statistical analyses were conducted using SAS software version 9.3.  Results: Eating-out more frequently was associated with younger, unmarried, employed, urban resident, higher income, higher education, and being male. Regarding dietary behavior, subjects with skipping breakfast and taking snack behavior showed a tendency to eat out more frequently. Meanwhile, energy, carbohydrate, protein, fat, and sodium intake were higher in subjects with ≥ 5/week eating-out frequency than those in subjects with < 5/week eating-out frequency. Conclusion: This study provides important insights into the effect of targeted public health education and policies. https://ijph.tums.ac.ir/index.php/ijph/article/view/19359 https://ijph.tums.ac.ir/index.php/ijph/article/download/19359/6629

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 08 196 197 Hengjun JIANG Scientific Research Department, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, Zhejiang, China Xingling CHEN The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, Zhejiang, China Yuxiu HU The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, Zhejiang, China Feng TAO The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, Zhejiang, China 2020 01 08 No Abstract https://ijph.tums.ac.ir/index.php/ijph/article/view/19385 https://ijph.tums.ac.ir/index.php/ijph/article/download/19385/6649

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 56 67 Chunyan QIU Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China Yue ZHANG Department of Radiation Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China Longhua CHEN Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China 2020 01 07 Background: Risk of colorectal cancer (CRC) is defined by genetic predisposition and environmental factors that often co-occur and interact, resulting in diversiform biological reactions. The present study attempted to investigate transcriptome alteration and adaptation associated with CRC progression. Methods: The study consisted of patients who presented at Memorial Sloan-Kettering Cancer Center, Guangzhou, China with a colonic neoplasm in 1992-2004. Microarray GSE41258 of the study was acquired from Gene Expression Omnibus and 253 included microarrays were categorized by groups of normal colon, early primary tumor, lymph node metastases primary tumor, advanced primary tumor and distant metastases. Short Time-series Expression Miner (STEM) was applied to discover tumor grade-dependent gene expression patterns. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were carried out to explore functional enrichment of differential expression genes (DEGs). Results: Overall, 2870 significant DEGs were screened out on all groups. Six significant grade-dependent gene expression patterns were statistically significant. DEGs in all significant patterns were mainly assembled in GO terms of metastases and deterioration of tumor, epithelial proteins and cytokines, and protein binding and bridging. DEGs in profile 0 down-regulated with higher tumor grade, prominently enriched in KEGG pathways of metabolism. Conclusion: Besides many well-known colorectal cancer-related pathways, DEGs of profiles especially those down-regulated with CRC progression, clustered in various metabolic pathways including starch and sucrose metabolism, fatty acid metabolism, nitrogen metabolism, as well as xenobiotics biotransformation that link to tumorigenesis, demonstrating the impairment of physiological metabolic pathways in the context of tumor progression. These results gave a high potential for therapeutic strategies. https://ijph.tums.ac.ir/index.php/ijph/article/view/19360 https://ijph.tums.ac.ir/index.php/ijph/article/download/19360/6630

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 08 198 200 Yong-Keum CHOI Department of Dental Hygiene, College of Health Science and Genome-Based BioIT Convergence Institute, Sun Moon University, Asan, South Korea Jin-Sun CHOI Department of Preventive and Public Health Dentistry, College of Dentistry and Research Institute of Oral Science, Gangneung-Wonju National University, Gangneung, South Korea 2020 01 08 No Abstract https://ijph.tums.ac.ir/index.php/ijph/article/view/19386 https://ijph.tums.ac.ir/index.php/ijph/article/download/19386/6650

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 1 2020 01 07 68 76 Nurbek IGISSINOV Department of Surgical Diseases № 2, Astana Medical University, Nur-Sultan, Kazakhstan AND Department of Science and Analytic, International High School of Medicine, Bishkek, Kyrgyzstan AND Central Asian Cancer Institute, Nur-Sultan, Kazakhstan AND Eurasian Institute for Cancer Research, Bishkek, Kyrgyzstan Alma AUBAKIROVA Republican Center for Health Development, Nur-Sultan, Kazakhstan Galiya ORAZOVA Department of Public Health, Astana Medical University, Nur-Sultan, Kazakhstan Gulnur AKPOLATOVA 1. Central Asian Cancer Institute, Nur-Sultan, Kazakhstan 2. Department of General and Clinical Pharmacology, Astana Medical University, Nur-Sultan, Kazakhstan Saltanat URAZOVA Department of General Medical Practice № 2, Astana Medical University, Nur-Sultan, Kazakhstan Dinar Tarzhanova Central Asian Cancer Institute, Nur-Sultan, Kazakhstan AND Department of General and Clinical Pharmacology, Astana Medical University, Nur-Sultan, Kazakhstan Akmaral ZHANTUREYEVA Central Asian Cancer Institute, Nur-Sultan, Kazakhstan AND Department of General and Clinical Pharmacology, Astana Medical University, Nur-Sultan, Kazakhstan Yerlan KUANDYKOV Department of Family Medicine, South Kazakhstan Medical Academy, Shymkent, Kazakhstan 2020 01 07 Background: As a result of the road traffic accidents 1.25 mln. of working-age people die each year on the roads. Frequency of the RTA is 11 times higher in our country than in Europe, that influence on demographic and economic situation in the republic. Creation of the math modeling and prediction of traffic mortality rate in Kazakhstan will allow to develop measure on its decrease. Methods: Short-term dotted prediction of population mortality level of Kazakhstan was used, in particular – methods of regressive analysis. General prognosis throughout the country up to 2021 was made on the basis of data for 1999-2018. The more relevant method for prediction is exponential function taking into account the features of mortality rate level trend. Results: Prediction of traffic fatalities without division into the age-related groups for 2019 is 2132±181 case with a probability 2/3. Expected levels for 2020-2027 cases, for 2021-1927 cases. Annual mortality decrease rate according to the 0-19 age-related at an average is 6.4% among men and 5.8% among women, according to age group as a whole – by 6.2%; from 20 up to 64 age related group – 5.1 % on all population category; older 65 age –group is by 2.2 %, 3.7 % among men, 2.9% among women as a whole. Conclusion: In the foreseeable future the number of traffic deaths in Kazakhstan will tend to decrease at a slower pace. Mortality rates due to road traffic accidents among working-age men will be 3 times higher than women in this age group. https://ijpversity of Medical Sciences, Tehran, Iran Pedram Rastegari Department of Health, Safety and Environmental, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran Noradin Gharari Department of Occupational Health and Safety Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2022 06 28 2023 11 28 Background: Working in hot environments can cause diseases and reduce performance by upsetting the balance of physiological parameters of workers' bodies. Bakers are among the people exposed to heat stress continuously and daily. This review study aimed to investigate the effect of heat stress on bakers. Methods: In this review study, the related articles based on keywords were reviewed using “IranMedex”, “Science Direct”, “PubMed”, “Scopus”, “Web of Science”, “SID”, “Google Scholar”, and “Magiran” databases from the years 2000 to 2021. The used search terms were "Heat stress", "Heat strain", "Heat exposure", "Heat waves", "Workplace", "Baker", and "health effects". In order to extract the required data, all parts of the articles have been reviewed. Results: Out of the 16 studies reviewed in this study, 43.75% were cross-sectional, 25% were descriptive cross-sectional, and 31.25% were performed according to other study designs. In all of the studies, the WBGT index was used to assess ambient heat stress. In most studies, the mean exposure temperature was higher than the WBGT-ACGIH limit, especially among traditional bakery workers. The findings showed that exposure to thermal stress significantly affects some hematological parameters of blood, oxidative stress, heart rate, and body temperature. Conclusion: The situation of heat stress in the bakery environment is worrying in terms of health and reduced productivity of employees. Therefore, it is essential to take the necessary preventive and control measures to reduce heat stress and the resulting strain. https://ijph.tums.ac.ir/index.php/ijph/article/view/29132 https://ijph.tums.ac.ir/index.php/ijph/article/download/29132/8106

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 12 2023 11 28 2601 2610 Zhengpeng Yang Department of General Surgery, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161002, China Hao Wu Department of General Surgery, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161002, China Defu Dai Department of General Surgery, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161002, China Yufeng Yuan Department of General Surgery, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161002, China Xueqian Shao Department of General Surgery, the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161002, China 2023 05 09 2023 08 12 Background: Colon adenocarcinoma (COAD) is one of the most common cancer happened in gastrointestinal tract, with the overall incidence rate of 4%-5% among human beings. Like most malignancies, we uncovered the exact mechanisms of the pathogenesis of colorectal cancer yet. Therefore, there is an urgent need to explore the molecules that can be used as diagnostic maker at early stage. In addition, we also need to define the essential factors that related to the prognosis and treatment of the colon carcinoma. Methods: The study was conducted at the Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, China in September 2020. The R language was used to identify the differentially expressed genes. We performed receiver operating characteristic curve analysis to determine the diagnostic markers for COAD. The machine learning strategy was used to assess the effectiveness of genes in the diagnosis of COAD. The molecular mechanism and prognostic value of genes were explored by bioinformatics analysis and molecular experiments. Results: The expression level of heat shock factor 4 (HSF4) was significantly elevated in COAD patients (P=1.89×10-29), according to The Cancer Genome Atlas (TCGA) database. Additionally, survival analysis showed the higher expression level of the HSF4 was correlated with the poor prognosis in COAD. Conclusion: The HSF4 was the target gene of zinc finger protein 692(ZNF692). HSF4 might promote the progression of COAD through the apoptosis pathway. It was diagnostic and prognosis maker of COAD. Furthermore, the upstream gene of HSF4, ZNF692, promotes the progression of colorectal cancer by regulating HSF4 expression. https://ijph.tums.ac.ir/index.php/ijph/article/view/31971 https://ijph.tums.ac.ir/index.php/ijph/article/download/31971/8113

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 12 2023 11 28 2541 2553 Bahareh Shateri Amiri Department of Internal Medicine, School of Medicine, Hazrat-e Rasool General Hospital, Iran University of Medical Sciences Tehran, Iran Neda Sabernia Department of Internal Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran Behdokht Abouali Department of Ophthalmology, School of Medicine, Infectious Ophthalmologic Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Parya Amini Department of Cardiology, School of Medicine, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran Hadi Rezaeeyan Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization, Tehran, Iran 2023 02 01 2023 05 08 Various factors are effective in the development of minimal residual disease (MRD), one of which is MicroRNAsmiRNAs miRNAs and their dysfunction in gene expression have influential role in the pathogenesis of leukemia. Nowadays, treatments that lead to the suppression or replacement of miRNAs have been developed. Focusing on the role of miRNAs in managing the treatment of leukemia, in this review article we have investigated the miRNAs and signaling pathways involved in the process of apoptosis and cell proliferation, as well as miRNAs with oncogenic function in malignant leukemia cells. Among the studied miRNAs, miR-99a, and miR-181a play an essential role in apoptosis, proliferation and oncogenesis via AKT, MAPK, RAS, and mTOR signaling pathways. miR-223 and miR-125a affect apoptosis and oncogenesis via Wnt/B-catenin, PTEN/PI3K, and STAT5/AKT/ERK/Src signaling pathways. miR-100 also affects both apoptosis and oncogenesis; it acts via IGF1 and mTOR signaling pathways. https://ijph.tums.ac.ir/index.php/ijph/article/view/31111 https://ijph.tums.ac.ir/index.php/ijph/article/download/31111/8107

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 12 2023 11 28 2611 2620 Hande Bakırhan Department of Nutrition and Dietetics, Faculty of Health Sciences, Kahramanmaras Istiklal University, Kahramanmaras, Turkey Serap İncedal Irgat Department of Nutrition and Dietetics, Faculty of Health Sciences, Karamanoglu Mehmetbey University, Karaman, Turkey 2022 11 15 2023 01 15 Background: Dietary pattern may be one of the determinants of cardiovascular health. This study aimed to examine the relationship between a heart-healthy diet, the phytochemical content of a diet, and Mediterranean diet and cardiovascular disease (CVD) risks. Methods: This study was conducted with healthy volunteers (n=1446) from Turkey between August 2022 and September 2022. As risk assessment systems to determine CVD risks, SCORE (Systematic Coronary Risk Evaluation) and ASCVD (Atherosclerotic Cardiovascular Disease) were used. We utilized MEDFICTS (Meats, Eggs, Dairy, Fried foods, Fat in Baked Goods, Convenience Foods, Fats Added at the Table, and Snacks) to establish the suitability of the current diet for heart health, and MEDAS (Mediterranean Diet Adherence Screener) to examine the Mediterranean diet characteristics of the current diet. The phytochemical content of the diet was determined using the Phytochemical Index method developed by McCarty. Results: The lifetime and 10-year risk scores of SCORE and ASCVD were positively correlated with the MEDFICTS score (r=0.12, P<0.001; r=0.06, P=0.020; r=0.10, P=0.001, respectively). Mediterranean diet characteristics were correlated with lower CVD risk as per the SCORE categories (r=-0.07, P=0.009). A one-unit increase in MEDFICTS scores increased high-to-very high CVD risk and 10-year moderate-to-high CVD risk by 1.01 times, while a one-unit increase in the Mediterranean diet score decreased high-to-very high CVD risk and 10-year moderate-to-high CVD risk by 0.91 times and 0.95 times, respectively. In addition, high values of body weight, body mass index, waist circumference, waist-height ratio, and neck circumference were associated with higher CVD risk (P<0.001). Conclusion: Adopting a Mediterranean diet and a heart-healthy diet may be a good strategy to reduce CVD risks. https://ijph.tums.ac.ir/index.php/ijph/article/view/30393 https://ijph.tums.ac.ir/index.php/ijph/article/download/30393/8114

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 12 2023 11 28 2621 2629 EN Akram Sadat Ahmadi Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Nazanin Zahra Shafiei–Jandaghi Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Kaveh Sadeghi Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Ahmad Nejati Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Sevrin Zadheidar Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Talat Mokhtari-Azad General Surgery Department, Nanjing Red Cross Hospital, Nanjing City, Jiangsu Province, 210000, China Yun Xiao General Surgery Department, Nanjing Red Cross Hospital, Nanjing City, Jiangsu Province, 210000, China Fei Tong General Surgery Department, Nanjing Red Cross Hospital, Nanjing City, Jiangsu Province, 210000, China Guodong Liu General Surgery Department, Nanjing Red Cross Hospital, Nanjing City, Jiangsu Province, 210000, China Ge Zhang General Surgery Department, Nanjing Red Cross Hospital, Nanjing City, Jiangsu Province, 210000, China Jianbo Han General Surgery Department, Nanjing Red Cross Hospital, Nanjing City, Jiangsu Province, 210000, China 2023 01 26 2023 04 07 Background: In order to explore new targets for the treatment of gastric cancer (GC), we investigated the regulatory mechanism of miR-934 in the malignant phenotype of gastric cancer. Results: GC tissues and cell lines showed notably higher levels of miR-934. Overexpression of miR-934 promoted cell viability, migration and invasion, while inhibited cell apoptosis of GC cells. ZFP36 was predicted and verified to be the target of miR-934 and low protein levels of ZFP36 were observed in GC tissues. The ZFP36 protein expressions were suppressed by miR-934 overexpression, while were facilitated by miR-934 inhibition. Furthermore, the carcinogenic functions of miR-934 were partially reversed after ZFP36 overexpression. The results of in vivo experiments further demonstrated that miR-934 promoted tumor growth and repressed the protein expression of ZFP36. Conclusion: miR-934 served as a tumor promoter in GC via targeting ZFP36, and ZFP36 overexpression could efficiently relieve malignant phenotypes caused by miR-934, which prompted an exploitable molecular target for GC treatment. https://ijph.tums.ac.ir/index.php/ijph/article/view/30977 https://ijph.tums.ac.ir/index.php/ijph/article/download/30977/8015

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 8 2023 08 06 1626 1641 EN Ehsan Jamshidian University of social welfare and rehabilitation sciences Elahe Hojati Abed PhD in Occupational Therapy, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran Elahe Fathi Azar MSc in Occupational Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran Mozhdeh Hashemzadeh PhD Candidate in Medical Librarianship and Information Science, Department of Medical Library and Information Science, School of Management and Medical Information Sciences, Clinical Informationist Research Group, Isfahan University of Medical Sciences, Isfahan, Iran. Hooshang Mirzaie PhD in Occupational Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran Hossein Sourtiji Assistant professor, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran 2022 06 28 2022 12 21 Background: Autism is a lifelong condition that seriously affects many aspects of children's and families' lives. The experience attained by living with a child with autism can be a valuable source of information to provide support and satisfactory services to children with autism and their families. We aimed to investigate the lived experiences of Iranian parents of children with autism. Methods: The search was conducted in PubMed, Web of Science, Embase, Google Scholar, CINAHL, PsychInfo, SID, and Magiran until Nov 2021. Two reviewers screened the articles, applied inclusion criteria, critically evaluated articles using the Critical Appraisal Skills Program (CASP), and extracted study details according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. Thematic synthesis was used to analyze included studies.  Results: From 2772 articles in the initial search, sixteen studies entered the final analysis. Four themes emerged, including treatment-related lived experience, individual lived experience, social lived experience, and occupational lived experience. Iranian parents of children with autism are confronted with negative experiences, including inaccurate diagnostic processes, lack of adequate support at the diagnosis time, low-quality treatment, psychological problems, and concern about the child's future. Also, Parent's experiences showed family problems, stigma, and problems with doing occupations. Conclusion: Practitioners, policy-makers, and regulatory organizations should urgently consider issues mentioned in the parents' experiences to provide proper healthcare services for children with autism and their families.  https://ijph.tums.ac.ir/index.php/ijph/article/view/29128 https://ijph.tums.ac.ir/index.php/ijph/article/download/29128/8006

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 8 2023 08 06 1730 1738 Raziyeh Zareh-Khoshchehreh 1. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2. Department of Virology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran Vahid Salimi 1. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2. National Reference Laboratory for Measles and Rubella, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Ghazal Sadat Fatemi Nasab 1. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2. National Reference Laboratory for Measles and Rubella, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Maryam Naseri Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Fatemeh Adjami Nezhad Fard 1. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2. National Reference Laboratory for Measles and Rubella, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Talat Mokhtari Azad 1. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2. National Reference Laboratory for Measles and Rubella, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2020 06 20 2023 01 22 Background: Despite decreasing the global burden of measles disease after the introduction of vaccination, measles remains one of the most devastating childhood diseases. Since genotype B3 is reported as a predominant Measles Virus (MeV) genotype recently, the current study aimed to better understand MeV genetic variation by analyzing the complete sequence of Hemagglutinin (H) gene associated with outbreaks of circulated genotypes in Iran. Methods: Nine positive measles specimens were selected from three circulated different genotypes H1, B3, and D4. Two different regions of MeV RNA were detected by RT-PCR assay. Sequence data and phylogenetic trees were analyzed and constructed by MEGA X software program. Moreover, missense and silent mutations in critical positions of the MeV-H protein were investigated. Results: The result of phylogenetic analysis from the C-terminus of the Nucleoprotein gene (NP-450) and the complete H gene revealed that the mean sequence diversity was 0.06%-0.08% and 0.04%, respectively. Genotype H1 had the highest mutation in this study; however, the substitutions in genotype B3 fundamentally occurred in critical epitopes. Moreover, genotype D4 was more stable than genotypes B3 and H1. Conclusion: Mutations were investigated in the whole sequence of H protein. Moreover, the mutations that occur in the critical sites of the protein have an important effect on the pathogenicity of the virus. In this way, we were able to illustrate why genotype B3 is more transmissible than other measles genotypes and is the most important circulating genotype around the world. https://ijph.tums.ac.ir/index.php/ijph/article/view/21197 https://ijph.tums.ac.ir/index.php/ijph/article/download/21197/8016

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 8 2023 08 06 1642 1655 Farzaneh Kermani Health Information Technology Department, School of Allied Medical Sciences, Semnan University of Medical Sciences, Semnan, Iran Mehdi Kahouei 1. Health Information Technology Department, School of Allied Medical Sciences, Semnan University of Medical Sciences, Semnan, Iran 2. Social Determinants of Health Research Center, Semnan University of Medical Sciences, Semnan, Iran Ali Valinejadi 1. Health Information Technology Department, School of Allied Medical Sciences, Semnan University of Medical Sciences, Semnan, Iran 2. Social Determinants of Health Research Center, Semnan University of Medical Sciences, Semnan, Iran Malihe Sadeghi Health Information Technology Department, School of Allied Medical Sciences, Semnan University of Medical Sciences, Semnan, Iran Marjan Momeni School of Rehabilitation, Semnan University of Medical Sciences, Semnan, Iran Shahrbanoo Pahlevanynejad Health Information Technology Department, School of Allied Medical Sciences, Semnan University of Medical Sciences, Semnan, Iran 2022 03 13 2022 12 09 Background: Integration of healthcare services for preterm neonates at home and hospital by mobile technology is an economical and convenient intervention, which is being increasingly applied worldwide. We aimed to classify the outcomes of mobile applications tailored to parents of premature infants. Methods: This systematic review was conducted by searching the six main databases until May 2021. Mobile applications tailored to parents of premature infants and the reported outcomes of this technology were identified and classified. Quality of screened articles checked by MMAT tool. Results: Overall, 10703 articles were retrieved, and after eliminating the duplicated articles, 9 articles were reviewed ultimately. Identified outcomes were categorized into three groups parental, application, and neonatal outcomes. In the parental outcomes, maternal stress/stress coping, parenting self-efficacy, satisfaction, anxiety, partnership advocacy/improved parent-infant relationship, feeling of being safe, reassurance and confidence, increase awareness, as well as discharge preparedness, were identified. In the application outcomes, application usage, ease of use/user-friendly, and usability of the designed application were placed. Finally, the neonatal outcomes include health and clinical items. Conclusion: Mobile applications can be useful in prematurity for educating pregnant mothers, managing stress and anxiety, supporting families, and preparing for discharge. Moreover, due to the coronavirus condition, providing remote services for parents is an appropriate solution to reduce the in-person visits to neonatal care centers. Development of tailored apps can promote the neonates' health and reduce their parents’ stress. https://ijph.tums.ac.ir/index.php/ijph/article/view/28135 https://ijph.tums.ac.ir/index.php/ijph/article/download/28135/8007

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 8 2023 08 06 1739 1748 EN Majid Babaie Social Determinants of Health Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran Habibollah Pirnejad 1. Patient Safety Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran 2. Erasmus School of Health Policy & Management (ESHPM), Erasmus University Rotterdam, Rotterdam, Netherlands Jafar Rezaie Solid Tumor Research Center, Cellular and Molecular Medicine Research Institute, Urmia University of Medical Sciences, Ur-mia, Iran Gholamreza Roshandel Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran Rana Hoseini Social Determinants of Health Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran 2021 12 29 2022 08 09 Background: Gastric cancer (GC), one of the most common cancer worldwide, remains the third leading cause of cancer-related mortality. The etiology of GC may arise from genetic and environmental factors. This study aimed to determine the association between GC incidence and socioeconomic status in Iran. Methods: An ecological study was designed to investigate the relationship between socioeconomic factors and the risk of GC incidence. The data of socioeconomic variables such as income changes, unemployment rate, urbanization ratio, inflation rate, and air pollution changes in 31 provinces were collected from the Statistical Center of Iran, and the data of GC of 31 provinces were provided from the Iranian National Population-based Cancer Registry (INPCR). Data from 2014 to 2017 was analyzed using panel data analysis, the fixed effects model by EViews software. Results: Panel data model was suitable for the present study. Results showed that there was a positive and significant relationship between GC incidence and socioeconomic factors including income changes (P≤ 0.001), unemployment rate (P≤0.01), inflation rate (P≤ 0.05), and air pollution changes (P≤ 0.001). The urbanization ratio showed a negative relationship and was not statistically associated with GC incidence (P> 0.05). Conclusion: Our findings suggest a positive and significant association between socioeconomic status and GC incidence, proposing a GC risk factor. The key public health policies and welfare policies' priority should therefore be to schedule for the GC management.   https://ijph.tums.ac.ir/index.php/ijph/article/view/27332 https://ijph.tums.ac.ir/index.php/ijph/article/download/27332/8017

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 8 2023 08 07 1749 1757 Ebrahim Alijani Clinical Immunology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran Farhad Riazi Rad Department of Immunology, Pasteur Institute of Iran, Tehran, Iran Asal Katebi Department of Immunology, Pasteur Institute of Iran, Tehran, Iran Soheila Ajdary Department of Immunology, Pasteur Institute of Iran, Tehran, Iran 2022 05 09 2022 06 29 Background: Tuberculosis (TB) is one of the leading causes of death worldwide. Besides, one-third of the world population is infected with Mycobacterium tuberculosis (MTB) while staying clinically asymptomatic; the situation is called latent TB infection (LTBI). MiR-21, miR-31, miR-146a, and miR-155 play an important role in many immune and inflammatory pathways. In the present study the expression levels of MiR-21, miR-31, miR-146a, and miR-155 in peripheral blood mononuclear cells (PBMCs) from patients with active TB, latently infected individuals (LTBI), and healthy controls (HC) were investigated. Participants were recruited at the Bouali Hospital, Zahedan University of Medical Sciences, Zahedan, Iran from 2010 to 2011. Methods: PBMCs were stimulated with PPD before RNA extraction. TaqMan RT-qPCR assay was used to analyze the expression levels of miRNAs. Results: The results indicated no significant differences in the expression of miR-21 and miR-31 between different groups; however, in patients with active TB, the expression of miR-21 (P=0.03) and miR-31 (P=0.04) were significantly increased after stimulation with PPD compared to the unstimulated condition. The expression of miR-146 in response to PPD in both LTBI (P=0.02) and TB (P=0.03) groups compared to the HC group was increased. No significant differences were found in the expression level of miR-155 in response to PPD between LTBI and HC groups. However, the fold change was significantly higher in the TB group in comparison with the HC (P=0.03) and LTBI (P=0.05) groups. Conclusion: The results confirm the main role of miR-146 and miR-155 in TB infection and suggest a role for miR-146 and miR-155 as infection and activation markers in tuberculosis infection, respectively. https://ijph.tums.ac.ir/index.php/ijph/article/view/28684 https://ijph.tums.ac.ir/index.php/ijph/article/download/28684/8018

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 8 2023 08 07 1758 1763 Zahra Karimi Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran Reza Ranjbar Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran Ali Najafi Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran 2022 02 13 2022 07 06 Background: Salmonella is one of the most leading causes of food-born infection and death among infants and people with the poor immunity system. Because Salmonella spp. have diversity in the genome composition and pathogenicity, access to rapid identification and genotyping is necessary to control of salmonellosis. The CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) typing is a genotyping method that checks these variable sequences in the bacterial genome in a specific species. This study aimed to differentiate Salmonella strains using CRISPR region. Methods: Salmonella isolates, previously identified via standard microbiological and molecular tests, were subjected to the study. Bacterial DNA was extracted and PCR was done using specific primers. The different PCR products were sequenced and the repeats patterns were used to identify additional or degenerate repeat clusters in the CRISPR region. All different sequences were analyzed using CRISPRtionary tool for dendrogram generation using the binary file. Results: Overall, 119 strains of various Salmonella serovars were used. The result showed unique CRISPR and diversity in spacer both in sequence and the number. Analysis of the extracted sequence and band patterns illustrated that, except for S. infantis, both S. enteritidis and S. typhimurium isolates were classified as a separate cluster. Conclusion: CRISPR genotyping could provide serotype/spacers dictionary and it is performed at low cost and high speed in comparison to the other typing methods. Therefore, the assessment of CRISPR and spacer content can be considered as a powerful and practical discriminatory method for subtyping of Salmonella isolates. https://ijph.tums.ac.ir/index.php/ijph/article/view/27861 https://ijph.tums.ac.ir/index.php/ijph/article/download/27861/8019

Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 8 2023 08 07 1764 1772 Fatemeh Sadat Sadjjadi School of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran Tahereh Mohammadzadeh Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baghiyatallah University of Medical Sciences, Tehran, Iran Seyed Hamed Jafari Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran Yosef Sharifi Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Hamed Nikoupour Dailami Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Fatemeh Hafezi Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran Seyed Mahmoud Sadjjadi Department of Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran 2022 07 14 2022 09 02