نتایج جستجو برای: colorectal cancer
تعداد نتایج: 925796 فیلتر نتایج به سال:
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...
background: colorectal cancer is one of the most common malignancies worldwide with more than one million new cases. according to the ministry of health and medical education of iran, colorectal cancer is the third most common cancer in iran. many risk factors are known causes of this disease. however, the molecular mechanisms associated with colorectal cancer are still under investigation. rec...
background: individuals with a positive family history of colorectal cancer have an increased risk of developing this type of cancer. the number of affected relatives and the age at diagnosis are two factors that increase the risk of colorectal cancer. the aim of this study was to assess the prevalence of a positive family history of colorectal cancer in a random sample among the iranian genera...
Background: Colorectal cancer is the second most common cancer in the world which is mainly caused by epigenetic and environmental factors. Among these epigenetic factors, gut microbiota is an important one. Although it has not been proved a unique group of bacteria correlated with colorectal cancer, these findings have generally demonstrated differences between healthy and disease gut microbio...
adipocytokines, hormones secreted from adipose tissue, have been shown to be associated with many cancers such as breast, prostate and colorectal cancer. recent studies have indicated that resistin and visfatin, two of these adipokines have high level plasma concentrations in colorectal cancer patients and may be promising biomarkers for colorectal cancer. the aim of this study was to identify ...
background: colorectal cancer is one of the most common gastrointestinal cancers accounting for about 10 percent of cancer-related mortalities. the present study was performed in order to investigate the relationship between nutritional factors and colorectal cancer risk in the population of yazd, iran. methods: this case-control study was conducted on 60 patients with colorectal cancer and 1...
Background: Kirsten rat sarcoma (KRAS) gene is a target of genetic alterations which are diagnostic and prognostic biomarkers in patients with metastatic colorectal cancer who are treated with monoclonal anti-EGFR antibodies such as cetuximab and panitumumab. KRAS mutations are seen in 35-42% of patients with colorectal cancer. The high frequency of these mutations in colorectal cancer represen...
in recent decades, there has been a dramatic increase in the incidence of colorectal cancer in iran, especially in patients less than 50 years old. a national colorectal cancer screening program is the best solution for identifying patients in high risk populations. the research center of gastroenterology and liver disease of shahid beheshti university, m.c., in collaboration, with the ministry...
abstract background : cancer has not been elucidated in colerectal site. c-reactive protein (crp) is a product synthesized in hepatocytes and has been reported to be up-regulated by such proinflammatory cytokines as interleukin-1 (il-1), interleukin-6 (il-6), and tumor necrosis factor (tnf). the significance of a preoperative serum elevation was evaluated using crp as a predictive indicator f...
Synchronous cancer is referred to two or more histological distinct malignancies diagnosed during the same hospital admission. Globally more than 1 million people get colorectal cancer yearly resulting in about 0.5 million deaths. Vulvar cancer is the fourth most common gynecologic cancer (following the corpus uterine cancer, cancer of ovary and cervix) and comprises only 4 percent of malignanc...
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