نتایج جستجو برای: familial adenomatous polyposis
تعداد نتایج: 64354 فیلتر نتایج به سال:
BACKGROUND & AIMS Chromosomal instability, a hallmark of most colorectal cancers, has been related to altered chromosome segregation and the consequent deficit in genetic integrity. A role for the tumor suppressor gene APC has been proposed in colorectal cancer that leads to compromised chromosome segregation even though the molecular mechanism is not yet understood. Here, we tackled the geneti...
BACKGROUND Familial adenomatous polyposis is a hereditary disease characterized by the presence of thousands of colonic adenomas, which, if untreated, invariably undergo malignant transformation. Because this disease manifests at a young age, the laparoscopic approach to perform surgery would be desirable due to its cosmetic benefits. We describe our experience with this procedure and review th...
Mutations in the adenomatous polyposis coli gene or activating mutations in the beta-catenin gene itself are thought to be responsible for the excessive beta-catenin signaling involved in intestinal carcinogenesis. We generated transgenic mice that expressed large amounts of a NH2-terminally truncated mutant beta-catenin (deltaN131beta-catenin) in the intestine. These mice had multifocal dyspla...
A proportion of colorectal cancers shows some type of genetic predisposition that can be recognised in clinical practice. From the classical dominant inheritance pattern of familial adenomatous polyposis or hereditary non-polyposis colorectal cancer, through the recessive transmission of the MYH associated polyposis, to the new syndromes of the "serrated pathway" or low-penetrance alleles, the ...
BACKGROUND/AIMS Restorative proctocolectomy is the "golden standard" in surgical treatment of ulcerative colitis and familial adenomatous polyposis. The two alternative techniques of ileal-pouch-anal anastomosis include hand-made suture and double line stapled suture. The aim of the study was the analysis of postoperative complications and functional results of the two types of anastomosis. M...
Gardner=s syndrome refers to a group of children born with familial adenomatous (multiple) polyposis and significant extracolonic manifestations. Familial adenomatous polyposis is an autosomal dominant disorder originating from a germline alteration of the adenomatous polyposis coli gene in the long arm of chromosome 5. The most significant extracolonic manifestation of Gardner=s syndrome consi...
Familial adenomatous polyposis has been linked to germline mutations in the APC tumor suppressor gene. However, a number of patients with familial adenomatous polyposis (with either classical or attenuated phenotype) have no APC mutation. Recently, germline mutations in the Wnt pathway component gene AXIN2 have been associated with tooth agenesis-colorectal cancer syndrome. Moreover, biallelic ...
Studies of tumors from human familial adenomatous polyposis, sporadic colon cancer, and mouse and rat models of intestinal cancer indicate that the majority of early adenomas develop through loss of normal function of the Adenomatous polyposis coli (APC) gene. In murine models of familial adenomatous polyposis, specifically the multiple intestinal neoplasia mouse (Min) and the polyposis in the ...
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