Abstract:
:The role of hormones and growth factors in the pathogenesis and therapy of colon cancer is biologically intricate and medically important. The effects of the previously described hormones and growth factors on normal and neoplastic colonic growth and development suggest the mechanisms by which hormonal alteration might either enhance or suppress the cancer process. The high degree of association between the specific endocrine-related processes (breast cancer, acromegaly, hyperparathyroidism, gastrin sensitivity of colon cancer, and cancer cell lines) suggests a significant role for hormones in colonic carcinogenesis. The relationship between the specific hormones and cancers is often unclear. This is the result of many factors: the variable presence of specific hormone receptors on the surface of the tumor or cell line; the inconsistent response to exogeneous hormone administration in vivo and in vitro; and the occasional failure of specific hormone-blocking agents to affect cell proliferation. The relationship between growth factors and cancers is also unclear. The following questions must be resolved in order to understand the significance of growth factors and the neoplastic process: (1) Is a growth factor significant in either an autocrine or a paracrine capacity? (2) Are combinations of growth factors rather than individual growth factors more biologically significant? (3) Do structural alterations of the immunologically similar, but functionally different growth factors modify their effect on the neoplastic tissue? The potential for manipulation of hormones and growth factors in the prevention and treatment of colon cancer is evidence to date suggesting that such efforts are indeed justified.
journal_name
Gastroenterol Clin North Amjournal_title
Gastroenterology clinics of North Americaauthors
Conteas CN,Desai TK,Arlow FAsubject
Has Abstractpub_date
1988-12-01 00:00:00pages
761-72issue
4eissn
0889-8553issn
1558-1942journal_volume
17pub_type
杂志文章,评审abstract::Hepatic angiosarcoma is the second most common primary malignant neoplasm of the liver. Although comprising only 2 per cent of all hepatic primary tumors, it represents a major clinical problem because of its strong association with industrial vinyl chloride exposure and its incurability. Strict ceilings on the amount...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:
更新日期:1987-12-01 00:00:00
abstract::This article examines the transitions in pharmacological therapy for obesity. It reviews the current options approved by the Food and Drug Administration and several drugs approved for other indications that can be used to treat obesity as well. Because weight regulation is complex and redundant systems protect agains...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2010.01.001
更新日期:2010-03-01 00:00:00
abstract::Autoimmune pancreatitis (AIP) is steroid-responsive fibroinflammatory disorder of the pancreas. There are 2 distinct subtypes of AIP, types 1 and 2. Type 1 is associated with systemic immunoglobulin (Ig)G4 disease and may affect multiple organs in the body. Type 2 is confined to the pancreas and shows an association w...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2018.04.007
更新日期:2018-09-01 00:00:00
abstract::Pediatric pancreatitis is an emerging field with an increasing incidence of disease. Management of pediatric pancreatitis is understudied and, therefore, extrapolated from adult studies (although the etiologies are different). There is evidence that feeding is safe in mild acute pancreatitis in children without increa...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2018.07.003
更新日期:2018-12-01 00:00:00
abstract::In this article, the epidemiology of eosinophilic esophagitis (EoE) is reviewed. Demographic features and natural history are described, the prevalence and incidence of EoE are highlighted, and risk factors for EoE are discussed. EoE can occur at any age, there is a male predominance, it is more common in whites, and ...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章
doi:10.1016/j.gtc.2014.02.002
更新日期:2014-06-01 00:00:00
abstract::Successful treatment of unresectable and metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs) requires the thoughtful choice of systemic therapy as a component of a multidisciplinary therapeutic approach. The role of somatostatin analogues is established in symptom relief, but the efficacy of interferon ...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2010.08.013
更新日期:2010-09-01 00:00:00
abstract::A persisting reservoir of the Gulf Coast strain of toxigenic V. cholerae O1 in Louisiana and Texas marshes and the shipment of seafood from these areas throughout the United States means that sporadic cases and outbreaks of cholera may occur anywhere in the country for the foreseeable future. Such cases are most likel...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:
更新日期:1993-09-01 00:00:00
abstract::HCV in the East is a complex scenario with prevalence rates of 0.5% to as high as 4.7%, and variable distributions of genotypes, with a dominance of genotype 1b in East Asia, genotype 3 in South Asia and South East Asia, and genotype 6 in Indochina. Approvals for the new oral directing antiviral agents (DAAs), in the ...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2015.07.007
更新日期:2015-12-01 00:00:00
abstract::The role of the aminosalicylates for induction therapy of mild moderate ulcerative colitis and as maintenance treatment has been substantiated by a large series of controlled clinical trials and confirmatory meta-analyses. Both sulfasalazine and newer derivatives are effective in preventing relapses. It remains to be ...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2004.02.010
更新日期:2004-06-01 00:00:00
abstract::New high-resolution colonoscopes and filter technologies are allowing us to visualize more lesions and better characterize lesions within the gastrointestinal tract. In light of recent findings that flat and serrated lesions are more likely to contain invasive cancer and that even small lesions (5-10 mm) may contain a...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2010.08.022
更新日期:2010-12-01 00:00:00
abstract::Probiotics have been studied in a variety of GI infections, and are an appealing concept given their favorable safety profiles. Several placebo-controlled trials indicated that lactobacilli have a suppressive effect on H pylori infection. Although some studies reported improvement in H pylori eradication, others faile...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2006.03.005
更新日期:2006-06-01 00:00:00
abstract::A better definition of a pseudocyst that clearly separates it from acute fluid collection, improvements in imaging studies, and a better understanding of the natural history of pseudocysts have changed the concepts regarding their management. The old teaching that cysts of more than 6 cm in diameter that have been pre...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(05)70077-7
更新日期:1999-09-01 00:00:00
abstract::Chronic intestinal pseudo-obstruction (CIPO) is a severe form of intestinal dysmotility disorder, characterized by the impairment of gastrointestinal propulsion of the gut content in the absence of fixed occluding lesions. CIPO is a rare disease that can develop in both children and adults. CIPO is classified as prima...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2019.08.005
更新日期:2019-12-01 00:00:00
abstract::Ascariasis is a helminthic infection of global distribution with more than 1.4 billion persons infected throughout the world. The majority of infections occur in the developing countries of Asia and Latin America. Of 4 million people infected in the United States, a large percentage are immigrants from developing coun...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(05)70263-6
更新日期:1996-09-01 00:00:00
abstract::The evaluation and treatment of patients after operations on the foregut is a challenge for physicians and surgeons. The early postoperative period is an especially important interval because the very survival of the patient as well as the success of the surgical intervention depends on the correct interpretation of t...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:
更新日期:1994-06-01 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) represents a global public health burden. NAFLD, while strongly associated with the metabolic syndrome, can occur independently from existing metabolic diseases. In addition to liver-related disease burden and mortality, significant extrahepatic disease outcomes coexist with NA...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2019.10.002
更新日期:2020-03-01 00:00:00
abstract::The development of colorectal neoplasia originates from normal colonic mucosa, progresses to the adenomatous polyp, and later may evolve into carcinoma. This procession of histologic change can be defined by a series of successive waves of clonal expansion that contain certain genetic alterations. These genetic altera...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(05)70272-7
更新日期:1996-12-01 00:00:00
abstract::In the treatment of arthritis, NSAIDs are some of the most commonly used drugs, although the prescription of such drugs has been questioned due to their inherent risks for gastrointestinal compromise, platelet effects, and the potential for renal toxicity with long-term use. With the availability of celecoxib and rofe...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(05)70226-0
更新日期:2001-12-01 00:00:00
abstract::Pediatric patients with inflammatory bowel disease (IBD) stand to benefit from quality improvement (QI) due to the chronic nature of the disease, frequent interaction with the health care system, and exposure to high-risk treatments. The use of QI in health care has led to significant improvements in quality and relia...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2018.07.013
更新日期:2018-12-01 00:00:00
abstract::Corticosteroids are of proven value for the treatment of active ulcerative colitis and Crohn's disease, but are of little value for the maintenance of remission. The development of new steroid compounds with low systemic bioavailability should allow higher doses to be given for longer periods without risking serious a...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:
更新日期:1989-03-01 00:00:00
abstract::Nutritional strategies have been explored as primary or adjunct therapies for inflammatory bowel disease (IBD). Exclusive enteral nutrition is effective for the induction of remission in Crohn disease and is recommended as a first-line therapy for children. Dietary strategies focus on adjusting the ratio of consumed n...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2017.09.007
更新日期:2018-03-01 00:00:00
abstract::Many disorders of the gastrointestinal tract have cutaneous manifestations. Thus, a careful examination of the skin may uncover clues to underlying diseases of the liver, gastrointestinal tract, and pancreas. This article explores the alimentary-cutaneous relationship. ...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(05)70023-6
更新日期:1998-09-01 00:00:00
abstract::Gastric electrical stimulation (GES) is neurostimulation; its mechanism of action is affecting central control of nausea and vomiting and enhancing vagal function. GES is a powerful antiemetic available for patients with refractory symptoms of nausea and vomiting from gastroparesis of idiopathic and diabetic causes. G...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2014.11.012
更新日期:2015-03-01 00:00:00
abstract::Three (author's standard) or five biopsy specimens (two antral, two corpus, one incisura) as suggested by the Sydney system (original and revised version) [figure: see text] correctly separate infected mucosa from uninfected mucosa. No combination identified correctly the presence of intestinal metaplasia to be consid...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(05)70153-9
更新日期:2000-12-01 00:00:00
abstract::Precursor lesions in the GIT include flat dysplasias, adenomas, dysplasia superimposed on nonneoplastic polyps, endocrine cell dysplasia, ACF, and condyloma accuminatum. Interobserver variability can be a problem in reporting dysplasia, and ancillary techniques including flow cytometry, image analysis, proliferation m...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(02)00007-9
更新日期:2002-06-01 00:00:00
abstract::Focal liver lesions occur commonly and with varying histology, each requiring radically different management. There are a multitude of imaging modalities currently being used for detecting and characterizing focal liver neoplasms. The primary modalities include ultrasonography, computed tomography (CT), magnetic reson...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(02)00028-6
更新日期:2002-09-01 00:00:00
abstract::Diagnostic angiography still plays an essential role in the diagnosis of patients,particularly those with acute lower GI bleeding. Transcatheter therapy appears to be a viable treatment alternative in selected patients with GI bleeding. Many interventionists today believe embolotherapy to be more effective initially a...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章
doi:10.1016/j.gtc.2005.09.001
更新日期:2005-12-01 00:00:00
abstract::Irritable bowel syndrome (IBS) is a common disorder that has been shown to aggregate in families and to affect multiple generations, but not in a manner consistent with a major Mendelian effect. Relatives of an individual with IBS are 2 to 3 times as likely to have IBS, with both genders being affected. To date, more ...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/j.gtc.2010.12.011
更新日期:2011-03-01 00:00:00
abstract::A wide spectrum of gastrointestinal illnesses impairs bone health and can result in bone pain, demineralization, and fracture. This article summarizes current knowledge of the skeletal pathology exhibited in patients with diseases of the liver, biliary tree, pancreas, and bowel. Mechanisms responsible for these syndro...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:10.1016/s0889-8553(05)70016-9
更新日期:1998-06-01 00:00:00
abstract::In conclusion, H. pylori infection can be detected by a variety of methods. The simplest, least expensive noninvasive method is serologic testing. Unfortunately, positive serology can only presume current infection. Urea breath testing is also noninvasive and is positive only in the setting of current infection; it is...
journal_title:Gastroenterology clinics of North America
pub_type: 杂志文章,评审
doi:
更新日期:1993-03-01 00:00:00