Possible protective effect of camellia sinensis [green tea] against acrylamide induced testicular damage in albino rats

Acrylamide is a proved toxin for testicular function, found in food when heated for long period of time. Green tea [Camellia sinensis] is a potent antioxidant; the aim of this study was to investigate the protective effect of green tea extract against the toxic effects of acrylamide in rat testes. acrylamide was administered orally by gastric gavage to rats in different doses and also the extract of green tea was administered orally to different groups of animals in combination with the acrylamide. The weight of animals, testosterone hormone level and histopathological effects upon testicles were evaluated. Testosterone hormone level in serum was significantly decreased in those with acrylamide toxicity either in low or high dose. The histopatological findings were in the form of thickening of the tubuler epithelium and degenerations of germ cells. All findings significantly improved with the co administration of green tea extract with the acrylamide. Green tea extract reversed all the toxic effects of acrylamide even in high dose for long period [90 days]. green tea extract is a potent antioxidant antidote for the acrylamide toxic effects upon testicular function

Morphometric study of the external ear in upper Egypt: age and sex differences

Ears play a vital role in forensic medicine. It can make a variable look in facial appearance. They are also helpful in defining population standards. This study aims to clarify the anthropometric measures in Upper Egyptians male and female differences, and compare these measures with other ethnic groups. Anthropometric measurements on 11 inter-landmark linear distances have been carried out for both left. and right ears of 500 Upper Egyptians volunteers [250 males and 250 females] aged from I - 70 years. Comparison was done for the ear dimensions in males and females, and between the measures of left and right ears. The data obtained were compared with measures of ears in other ethnic groups. All linear measurements showed an increase in size with age. In all ear dimensions especially ear length, male ears tend to be larger and this is highly significant [p

Effects of different environmental factors on the identification of fetal and adult hemoglobin in bloodstains

The forensic scientist is confronted with many problems in the identification of bloodstains. These problems may be due to the aging of the stain or some environmental factors to which the stain was exposed. The aim of this work is to determine the effects of different environmental factors [age, temperature, pH, light, dark, humidity, open air and burn] on fetal hemoglobin [HbF] and adult hemoglobin [HbA] identification. The study aims also to determine the recommended conditions for collection and preservation of bloodstains. The research was carried out on 20 blood samples of healthy adult volunteers and 20 fetal human blood samples. Fetal hemoglobin [HbF] was measured in fetal blood samples and total adult hemoglobin [HbA] was measured in adult blood samples by cyanomethemoglobin method and their patterns were detected by cellulose acetate electrophoresis method. The results demonstrated that fetal and adult hemoglobin concentration decreased with the advance of the age of the stain. The percent of decrease due to aging was more in fetal hemoglobin. The minimal effect of temperature was after exposure to -4°C [the percent of decrease was 29.49% for fetal and 21.99% for adult]. Fetal hemoglobin appeared to be more resistant to alkalis and acids; more affected by both light and dark than adult hemoglobin. The study of the pattern of cellulose acetate electrophoresis revealed that the studied environmental factors had great destructive effects on blood stains but fetal hemoglobin [HbF] was more affected than adult hemoglobin [HbA]. The study recommended that bloodstains must be preserved in a dry condition at -4°C without addition of any chemicals or just in open air where analysis must be done as early as possible