Now showing items 1-4 of 4
Association between MTHFR polymorphism (C677T) with nonfamilial colorectal cancer
The enzyme 5,10-methylene-tetrahydrofolate reductase (MTHFR) is linked to DNA methylation, synthesis, and repair. C677T is one of the most important polymorphisms in the MTHFR gene. The single nucleotide polymorphism C677T ...
Age-specific seroprevalence of hepatitis A infection among children visited in pediatric hospitals of Tehran, Iran
Background: Hepatitis A is an enterically transmitted disease that still remains endemic in many developing countries. In some countries improvements in living conditions have recently led to changing in epidemiology of ...
Appendectomy, tonsillectomy, and risk of inflammatory bowel disease: A case control study in Iran
There is some controversy about the prevalence of appendectomy and tonsillectomy among patients with Crohn's disease and a lower rate of appendectomy among patients with ulcerative colitis (UC). The objective of this study ...
Prenatal screening and counseling in iran and ethical dilemmas
Objective: Prenatal screening has become an increasingly common procedure all over the world. It offers couples useful information relating to the health of their fetus, although it faces us with serious ethical dilemmas ...