خاتمی*1،, فاطمه

[ 1 ] - بررسی نقش پلی مورفیسم‌های ژن O6 – متیل گوانین متیل ترانسفراز در سرطان کولورکتال

Abstract Background: Sporadic colorectal cancer is the fourth most common cancer in Iran. The DNA repair protein O6-methylguanine-DNA methyltransferase (MGMT) is involved in the cellular defense against alkylating agents. Genetic alterations in the MGMT gene may impair the protein’s ability to remove alkyl groups from the O6-position of guanine, thereby raising the mutation rate and increasi...

[ 2 ] - Promoter Methylation of Four Tumor Suppressor Genes in Human Papillary Thyroid Carcinoma

Background & Objective: Papillary thyroid cancer (PTC) is considered to be the most common type of thyroid malignancies. Epigenetic alteration, in which the chromatin conformation and gene expression change without changing the sequence of DNA, can occur in some tumor suppressor genes and oncogenes. Methylation is the most common type of epigenetic alterations that can be an ex...