2024 Impact Factor: 1.6
2024 CiteScore: 2.5
pISSN: 2251-6085
eISSN: 2251-6093
Chairman & Editor-in-Chief:
Dariush D. Farhud, MD, Ph.D., MG.
This journal is a member of, and subscribes to the principles of, the Committee on Publication Ethics (COPE). 
Vol 25 No 1-2 (1996)
Articles
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Thalassemias, because of climatic, geographic and ecological conditions, are the most common among the genetically endemic in Iran, especially m provinces adjacent to the Caspian Sea and the Persian Gulf. There are over 14,000 cases of thalassemia major reported in Iran. Data, collected by the Iranian Ministry of Health, and analyzed at the Department of Human Genetics, School of Public Health, Tehran University of Medical Sciences, showed relative distribution of 3194 patients referring for the iron chelating drug, disferal, in 24 provinces in Iran. 3304 cases were studied for sex and age groups. Higher percentages and sex ratios were observed in each age group and further clarified as the age increased. 3386 cases were considered for ABO and Rh blood groups. Significant high incidence of group 0 (41.228%) was followed by groups A (29.090%) and B (23.2 13%), and group AB with the lowest (6.467%). A significant low incidence of Rh negative was also observed (6.852%).
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Thalassemias, because of climatic, geographic and ecological conditions, are the most common among the genetically endemic in Iran, especially m provinces adjacent to the Caspian Sea and the Persian Gulf. There are over 14,000 cases of thalassemia major reported in Iran. Data, collected by the Iranian Ministry of Health, and analyzed at the Department of Human Genetics, School of Public Health, Tehran University of Medical Sciences, showed relative distribution of 3194 patients referring for the iron chelating drug, disferal, in 24 provinces in Iran. 3304 cases were studied for sex and age groups. Higher percentages and sex ratios were observed in each age group and further clarified as the age increased. 3386 cases were considered for ABO and Rh blood groups. Significant high incidence of group 0 (41.228%) was followed by groups A (29.090%) and B (23.2 13%), and group AB with the lowest (6.467%). A significant low incidence of Rh negative was also observed (6.852%).
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Testosterone level was determined in six different populations of Iran using saliva steroid assay. Significant difference was observed in morning and afternoon testosterone level of the same individual (P>0.00l) significant difference was also noticed among different regions studied (P>0.00 1). Comparisons between alcoholics and nonalcoholic as well as smokers and nonsmokers showed significant difference in most of the cases.
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In order to compare sampling efficiencies of total and inhalable dust methods, three airborne dust sampling systems , 7-Hole sampler , close and open face filter cassette were compared side-by-side , as stationary and for the personal samplers , in a wood working industry to evaluate their relative efficiency. A total of 162 samples were collected. The study of particle size distribution by cascade impactor indicated that the particles smaller than 4.7 and 11 comprise about 13% and 30% of biology total dust respectively and therefore about 70% of particles are greater than 11. The 7-Hole gave a higher dust concentration measurement than open face and close face filter cassettes, in all processes, P<0.05. This significant elevated concentration is probably due to higher sampling efficiency of 7-Hole sampler for particles diam>11, compared to the open face and close face filter cassettes. Open face and close face filter which were expected to give equivalent results measured statistically equivalent dust concentrations.
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In order to evaluate the effectiveness of the Iranian made charcoal tubes in the field , 60 local made and 60 imported ones (SKC type) were randomly selected and placed side by side for sampling aromatic hydrocarbons (including Benzene, Toluene, Xylene) in workers breathing zone in a paint factory. The results indicated that there were no statistically significant differences between the mean concentrations of aromatic hydrocarbons measured in studied groups. The ratios of pressure drop to flow rate of Iranian made tubes were statistically higher than the SKC ones (P<0.0l).
