… We hypothesized that differences in serum selenium may partly explain the highly varying
… GC in Iran. Here, we present the results of an ecologic study that compared serum selenium …

… Objective: The aim of this study was to evaluate the serum levels of Se and Zn and the …
esophageal cancer (EC) and gastric cancer (GC). Materials and Methods: In a case–control study, …

… serum Se level and development of gastric cancer may exist only among populations with
low Se level. . The results of a study from Iran … upper gastrointestinal cancer region of Turkey …

… esophageal cancer were (4.13 mg/kg) and (3.39 mg/kg) respectively (P=0.01). Conclusion:
This study showed that there is high Soil Selenium level in Golestan province in north of Iran. …

… study examines the relation between ultraviolet radiation and the incidence of gastrointestinal
cancers in Iran. … rates in higher altitude may be related to higher arsenic and less selenium …

… Korei of the Geological Survey of Iran for financially supporting this research. We would
also like to extend our thanks to the research committee and medical geology center of Shiraz …

… Golestan province, in the northern part of Iran, has the highest esophageal cancer rate in
the world. The north and south districts of Golestan province can be classified as low and high-…

… of selenium, a supposedly important trace element in carcinogenesis in the upper GI tract.They
showed that only 29% of the Ardabil population had a serum selenium concentration of …

… cancer (EC) in a high risk area in Northern Iran. Methods: This ecological study was conducted
in Golestan province of Iran in … high levels of selenium (Se) in serum3 and soil4 samples. …

… , the Se level was higher in men compared with women in both cancer and non-cancer
patients. In an ecologic study on healthy adults in Iran, serum selenium concentrations did not …