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 alterations include mutations in the K-ras oncogene and mutation in the one allele coupled with loss of the second allele for the tumor suppressor genes APC, DCC, and p53. The normal forms of these genes encode for proteins that regulate cell growth, cell-to-cell adhesion, and cell cycle checkpoints. Information on the function of these genes, as well as a proposed model of sequential mutation and loss of these regulatory genes during colorectal tumorigenesis are presented.
journal_name
Gastroenterol Clin North Amjournal_title
Gastroenterology clinics of North Americaauthors
Carethers JMdoi
10.1016/s0889-8553(05)70272-7subject
Has Abstractpub_date
1996-12-01 00:00:00pages
737-54issue
4eissn
0889-8553issn
1558-1942pii
S0889-8553(05)70272-7journal_volume
25pub_type
杂志文章,评审abstract：:Evidence indicates that the gut microbiota and/or interactions between the microbiota and the host immune system are involved in the pathogenesis of inflammatory bowel disease (IBD). Strategies that target the microbiota have emerged as potential therapies and, of these, probiotics have gained the greatest attention. ...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2017.08.003
更新日期：2017-12-01 00:00:00
abstract：:Ischemic injury to the gastrointestinal tract can threaten bowel viability with potential catastrophic consequences, including intestinal necrosis and gangrene. The presenting symptoms and signs are relatively nonspecific and diagnosis requires a high index of clinical suspicion. AMI often results from an embolus or t...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(03)00093-1
更新日期：2003-12-01 00:00:00
abstract：:This article reviews the role of therapeutic endoscopy in the diagnosis and treatment of nonvariceal upper and lower gastrointestinal (GI) hemorrhage. The initial approach to patients with GI bleeding is reviewed. Endoscopic treatment of various stigmata of recent peptic ulcer hemorrhage is discussed in detail. Manage...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70123-0
更新日期：2000-06-01 00:00:00
abstract：:The cellular and molecular understanding of human gastroparesis has markedly improved due to studies on full-thickness gastric biopsies. A decrease in the number of interstitial cells of Cajal (ICC) and functional changes in ICC constitutes the hallmark cellular feature of gastroparesis. More recently, in animal model...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2020.04.009
更新日期：2020-09-01 00:00:00
abstract：:The application of EUS has improved the way we evaluate and manage patients with rectal cancer. EUS has substantially greater sensitivity than CT in detecting advanced T stage tumors. Such improved sensitivity results in changes in preoperative therapy that would not otherwise have occurred without EUS. Although the a...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(02)00050-x
更新日期：2002-12-01 00:00:00
abstract：:Since the initial discovery of H. pylori by Marshall and Warren 17 years ago, much progress has been made in treating this infection. However, as we enter the millennium, H. pylori infection continues to be one of the most common infections of mankind. In addition, eradication of H. pylori still requires multiple anti...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70137-0
更新日期：2000-09-01 00:00:00
abstract：:In most patients presenting with acute pancreatitis, the cause can be established on the basis of initial history, physical examination, laboratory studies, and abdominal sonography. Patients with unexplained pancreatitis at that point are often considered to have idiopathic disease. However, a cause and, often, effec...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1990-12-01 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：:The past decade has seen the introduction of a number of new potent antimicrobial agents, including broad-spectrum beta-lactam compounds such as the ureidopenicillins, third-generation cephalosporins, carbapenems, and monobactams; combinations of penicillins with inhibitors of beta-lactamase; and the quinolones. Most ...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1992-09-01 00:00:00
abstract：:As the AIDS epidemic continues to grow, it becomes increasingly important that physicians are aware of the gastrointestinal and abdominal diseases specific to this group of patients. Most AIDS patients exhibit gastrointestinal symptoms at some time during the course of their disease. Clinical AIDS is often determined ...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1995-06-01 00:00:00
abstract：:Striking geographical differences occur in the clinical presentation of hepatocellular carcinoma in high and low incidence areas. This tumor is also associated with a number of paraneoplastic phenomena that may antedate the clinical appearance. ...
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：:Nutritional support can improve the outcome from severe acute pancreatitis in two ways: first by providing the building blocks for tissue repair and recovery, and second, by modulating the inflammatory response and preventing organ failure, both of which are responsible for most of the morbidity and mortality associat...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2007.03.009
更新日期：2007-06-01 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
abstract：:It is shortsighted to consider only the esophageal manifestations and complications of esophageal reflux. That such reflux can directly affect not only the lung but also the oropharynx and larynx, both by direct acid contact and reflex neurologic mechanisms, has been demonstrated repeatedly. The task of the future wil...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1990-09-01 00:00:00
abstract：:Living donor intestinal transplantation (LDIT) has been improved leading to results comparable to those obtained with deceased donors. LDIT should be limited to specific indications and patient selection. The best indication is combined living donor intestinal/liver transplantation in pediatric recipients with intesti...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2018.01.008
更新日期：2018-06-01 00:00:00
abstract：:Hereditary pancreatitis is a clinical condition in which typical pancreatitis is associated with an inheritance pattern strongly suggestive of an autosomal dominant trait. Different variants have been described, some with aminoaciduria and some with ductal anomalies. Recurrent attacks are typical and lead to complicat...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1994-12-01 00:00:00
abstract：:Hepatic injury due to chemicals or natural toxins may occur from occupational, household, or environmental exposure. The liver may dominate the syndrome of toxicity from such agents as carbon tetrachloride, poison mushrooms, and toxic alkaloids, or may be only one facet of more generalized toxicity. The entire histolo...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1995-12-01 00:00:00
abstract：:Radiation therapy (RT) has been used to treat cancers for more than a century. Recent randomized trials have helped clarify the treatment recommendations in the use of RT for colorectal cancers. This article reviews these trials to illustrate key concepts, places these trials in perspective, and provides direction for...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2007.12.010
更新日期：2008-03-01 00:00:00
abstract：:Topical therapy with amino salicylate enemas is the treatment of choice for proctitis, proctosigmoiditis, and left-sided ulcerative colitis. Adjunctive sulfasalazine therapy is often required. Relapse rates of 80 per cent can be expected within 3 months of discontinuing therapy. ...
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：:Chronic HIV-associated diarrhea is currently a field in flux. Improved noninvasive diagnostic tests, improved pathogen-specific regimens, and better empiric therapies may change some of the assumptions used to select algorithms for diagnostic evaluation and management. Any shift in the cause of diarrhea from pathogen-...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70203-x
更新日期：2001-09-01 00:00:00
abstract：:Barrett's metaplasia develops in 6% to 14% of individuals with gastroesophageal reflux. Barrett's adenocarcinomas are increasing in epidemic proportions for, as yet unknown, reasons; approximately 0.5% to 1% of patients with Barrett's metaplasia develop adenocarcinoma. Heartburn duration and frequency (but not severit...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70098-4
更新日期：1999-12-01 00:00:00
abstract：:Perinatal mood and anxiety disorders (PMAD) have significant negative impacts on mother and child, yet treatments are limited. Adequate nutrition during the perinatal period is essential to maternal and infant health, including maternal mental health and the child's neurologic and neuropsychiatric development. Nutriti...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2019.04.007
更新日期：2019-09-01 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：:Biologics are a primary focus for research and development of new treatments for IBD and other immune disorders. CDER, which is a branch of the FDA, oversees most of the biologics that are being used or tested for IBD, and it regulates nonbiologic medications for IBD. The approval process for most biologics for IBD is...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2006.09.010
更新日期：2006-12-01 00:00:00
abstract：:QOL assessment in oncology has made great strides in recent years. There was a difficult time initially, during which QOL tools were "thrown in" to many clinical trials as an afterthought, without a pre-specified scientific question. As expected from such a scattershot approach, the results were underwhelming and disa...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2005.12.010
更新日期：2006-03-01 00:00:00
abstract：:Autoimmune pancreatitis is the pancreatic manifestation of a systemic disorder that affects various organs, including the bile duct, retroperitoneum, kidney, and parotid and lacrimal glands. It represents a recently described subset of chronic pancreatitis that is immune mediated and has unique histologic, morphologic...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章
doi：10.1016/j.gtc.2008.02.004
更新日期：2008-06-01 00:00:00
abstract：:Inborn errors of metabolism (IEMs) are usually recognized by characteristic neurologic and metabolic manifestations and sometimes by dysmorphism. However, IEMs can present with a wide variety of gastrointestinal manifestations, whether as the primary or a minor clinical symptom. Regardless, gastrointestinal and hepati...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2019.02.001
更新日期：2019-06-01 00:00:00
abstract：:The intestinal immune system is intimately connected with the vast diversity of microbes present within the gut and the diversity of food components that are consumed daily. The discovery of novel molecular mechanisms, which mediate host-microbe-nutrient communication, have highlighted the important roles played by mi...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2016.09.004
更新日期：2017-03-01 00:00:00
abstract：:Biliopancreatic diversion is a very effective method for weight reduction. In some instances it is too effective and needs to be revised. ...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章
doi：
更新日期：1987-09-01 00:00:00
abstract：:Fecal incontinence affects up to 20% of community-dwelling adults and more than 50% of nursing home residents, and is one of the major risk factors for elderly persons in the nursing home. Institutionalization itself is a risk factor (eg, immobility due to physical restraints). Management should focus on identifying a...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2009.06.007
更新日期：2009-09-01 00:00:00
