2023 Impact Factor: 1.3
2023 CiteScore: 2.2
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 19 No 1-4 (1990)
Articles
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Three generations of women (3570 daughters, 1148 mothers and 131 grandmothers) from Tehran, Iran have been studied for menarcheal age. The results show that the age of onset of menarche has decreased in the present generation- 13.599, compared to 13.690 and 13.870 years, amount their mothers and grandmothers, respectively. These results, when compared with results obtained concerning the other Iranian groups, show the effect of both genetic and nongenetic factors on the onset of menarche.
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One hundred sixty two domestic fowls were examined for Toxoplasma infection by both indirect haemagglutination tests for Toxoplasma antibodies and inoculation of their brains intraperitoneally into mice for the parasite. The overall sero-positive rate (SPR) was 29 percent with the titers ranging from 1:20 to 1:6400. The number of each species tested and their SPR were: 74 hens (27.0%), 35 roosters (37.1%), 25 turkeys (24.0%), 12 pigeons (33.3%), 8 geese (50.0%) and 8 ducks (0.0%). Altogether 12 strains (7.4%) of T.gondii were isolated from 5 species of the birds, five strains (6.7%) from the hens, one (2.9%) from roosters, four (16.0%) from turkeys, one (8.3%) from pigeons, one (12.5%) from geese and none from the examined ducks. In one case Toxoplasma was isolated from a seronegative hen and the rest were isolated from the sero-positive fowls. All of the isolated strains were no virulent to mice. Since in Iran consumption of underdone chicken-kebab is more or less usual, Toxoplasma infections in domestic fowls any be taken into account as one of the sources of human infection.
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In order to investigate the combined effects of shift work and heat stress on the physiological parameters, such as heart rate (HR) and body temperature (BT), a hot-dry working environment was investigated for 53 workers in foundry workshops. In this study Wet Bulb Globe Temperature index (WBGT) was measured and along with that simultaneously heart rate and oral temperature were checked in 3 shifts. The results indicated that the physiological responses of workers changed whenever the shift changed and the responses were increased by a corresponding increase in heat stress, index.
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The laboratory infection of Lymnaea gedrosiana with 2,5 and 10 miracidia of Fasciola gigantica resulted in infection rates of 20%, 40% and 69%, respectively, with a prepatent Period of 66-88 days. There was a significant difference in infection rate between the snails infected with 2 and those with 10 miracidia (P<0.05). At 92 days post- infection there was 25% to 33.3% of live snails still harboring immature stages of F.gigantica larvae. The mortality rate of the infected and non-infected control groups showed no marked differences.
