BACKGROUND & OBJECTIVES DNA mismatch repair gene (MMR) abnormalities are seen in 95 per cent of hereditary nonpolyposis colorectal cancer (HNPCC) and 10-15 per cent of sporadic colorectal cancers. There are no data on MMR abnormalities in Malaysian colorectal cancer patients. This study was aimed to determine the frequency of abnormal MMR gene protein expression in colorectal carcinoma in North...

AIM To determine the frequency of tumour budding and somatic APC mutation in a series of colorectal cancers stratified according to DNA microsatellite instability (MSI) status. MATERIAL/METHODS Ninety five colorectal cancers were genotyped for APC mutation in the mutation cluster region (exon 15) and scored for the presence of tumour budding at the invasive margin in haematoxylin and eosin st...

Background and aims: Loss of DNA sequences from chromosome 18q21 is a major genetic change in colorectal tumorigenesis. Multiple genes have been identified in this area. One of these, DPC4 (deleted in pancreatic cancer 4, also known as SMAD4), is mutated in a minor subset of colorectal carcinomas as well as in germlines of humans predisposed to colon tumours. Patients and methods: The involveme...

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...

Colorectal cancer (CRC) is a highly prevalent disease, and despite advances in medical research, much remains unknown about CRC. As such, it is important to improve our current understanding of CRC. Several animal models for CRC exist, and they provide an excellent tool for studying CRC tumorigenesis. These models, however, have limitations, and a good understanding of the pathophysiology of th...

There are several molecular pathways of colorectal cancer. At least four separate pathways of colorectal cancer exist: (A) adenomatous polyposis coli pathway in which B cateni-T cell factor-MYC factors are implicated (APC-B catenin-Tcf-MYC) in adenoma carcinoma sequence, (B) hereditary non-polyposis colorectal cancer pathway (HNPCC) characterized by loss of DNA mismatch repair by inherited or a...

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...

the tp53 gene is one of the most frequently mutated genes amongst human malignancies, particularly tp53 codon 72 polymorphism. furthermore, an association between the tp53 codon 72 variants and prostate cancer has been reported in several studies. although some studies have indicated an association between the tp53 arg/arg variant and an increased risk for prostate cancer, other studies have sh...