introduction: the objective of the present study is to investigate the relationship between the familial history of digestive system cancers and development of gastric cancer. methods: in this case-control study conducted in 2012, 84 patients with a definite diagnosis of gastric cancer, diagnosed using endoscopy and pathological study of biopsies, were compared with 84 people with the same age ...

hypothyroidism is one of the problems that can cause severe growth and developmental defects in children and infants. by using anticonvulsive drugs (phenobarbital, carbamazepine, navalproate , and phenytoin), liver microsomal enzymes will be increased and will lead to hypothyroidism in infants because of increasing metabolism of t3, and t4 by liver. the purpose of this study was to evaluate the...

BACKGROUND Blastocystis is a zoonotic protozoan parasite living in the digestive system of some vertebrates. This parasite has some subtypes, pathogenicity status of which has still remained controversial. OBJECTIVES The aim of this study was to determine the subtype of Blastocystis in infected cattle. MATERIALS AND METHODS This descriptive cross-sectional study was performed on 196 isolate...

BACKGROUND There are some genetic differences in Blastocystis that show the existence of species or genotypes. One of these genes that help in identifying Blastocystis is SSUrRNA. The aim of this study was assessment of genetic diversity of Blastocystis by PCR with seven pairs of STS primers. METHODS This study was done on 511 stool samples collected from patients referred to the health care ...

introduction radioactive materials naturally exist in the world. indeed, approximately 82% of human-absorbed radiation doses, which are out of human control, arise from natural sources of radiation including cosmic, terrestrial, and exposure through inhalation or ingestion. thus, the aim of the present study was to estimate health risk, as well as the effective and organ doses from naturally oc...