Abstract：
:The heterogeneous group of proteinases known as pepsinogens are synthesized, stored, and upon appropriate stimulation released from gastric mucosal chief cells. Under the acidic conditions of the lumen of the stomach, the proenzymes, pepsinogens, are converted to "pepsin", which plays an important physiologic role as a digestive enzyme. The potential roles for pepsin in upper gastrointestinal diseases such as gastric or duodenal ulcer and gastroesophageal reflux disease along with the recent development of in vitro gastric gland and isolated chief cell preparations have renewed interest in the study of the control of pepsinogen synthesis and secretion. In this article the authors briefly summarize current knowledge of the biology of pepsinogens and emphasize more recent findings concerning the control of the chief cell, which is related to the synthesis and secretion of pepsinogens in vitro.
journal_name
Gastroenterol Clin North Amjournal_title
Gastroenterology clinics of North Americaauthors
Muller MJ,Defize J,Hunt RHsubject
Has Abstractpub_date
1990-03-01 00:00:00pages
27-40issue
1eissn
0889-8553issn
1558-1942journal_volume
19pub_type
杂志文章,评审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：: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：:The intestine contains major subdivisions of the nervous and immune systems. The lymphoid compartments of the intestine contain functionally distinguishable populations of immunologic cells and are innervated differently. The lamina propria has an extensive network of nerves using the neuropeptides SOM, SP, and VIP. S...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1991-09-01 00:00:00
abstract：:Women have started to enter gastroenterology (GI) in significant numbers over the past 5 years, although they are still underrepresented compared with the proportion of female graduating medical students. This underrepresentation is most likely caused by the culture of GI where female students and residents have felt ...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2011.03.004
更新日期：2011-06-01 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：:Therapeutic gastrointestinal endoscopy has a much greater risk of inducing gastrointestinal hemorrhage than diagnostic endoscopy. For example, colonoscopic polypectomy has a risk of approximately 1.6% of inducing bleeding, compared with a risk of approximately 0.02% for diagnostic colonoscopy. Higher-risk procedures i...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70110-2
更新日期：2000-03-01 00:00:00
abstract：:CD and UC represent a spectrum of chronic IBD that present in protean ways and are accompanied by a variety of systemic sequelae. Sulfasalazine and the newer 5-aminosalicylates are important in the management of mild-to-moderate disease, whereas corticosteroids remain the primary therapy for most patients with moderat...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70058-3
更新日期：1999-06-01 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：:Gastroparesis is a heterogeneous disorder defined by delay in gastric emptying. Symptoms of gastroparesis are nonspecific, including nausea, vomiting, early satiety, bloating, and/or abdominal pain. Normal gastric motor function and sensory function depend on a complex coordination between the enteric and central nerv...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2014.11.003
更新日期：2015-03-01 00:00:00
abstract：:Gastric cancer (GC) is third leading cause of cancer-related death. Only 28.3% of new GC cases survive more than 5 years. Although incidence has declined in the United States, an increase is estimated for 2016. Risk factors include sex (risk is higher in men), Helicobacter pylori infection, heredity, and lifestyle. GC...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2016.04.002
更新日期：2016-09-01 00:00:00
abstract：:Barrett's esophagus, currently defined as endoscopically apparent columnar metaplasia of the esophagus with histologic documentation of goblet cells, is the precursor to esophageal adenocarcinoma. However, not all patients with this disorder require intensive surveillance. Pathologic diagnosis and grading of dysplasia...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2007.08.004
更新日期：2007-12-01 00:00:00
abstract：:Adenomatous polyps are the benign precursors of colorectal adenocarcinoma. Colonic adenomas occur commonly in adults in Western countries. There is recent evidence that inheritance may play an important role in the etiology of these adenomatous polyps. Colonic adenomatous polyposis (numerous colonic adenomas) is the c...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：
更新日期：1988-12-01 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：:Capsule endoscopy is a relatively new technology available in the investigation of IBD. Its place in the algorithm of evaluating IBD is being refined. Capsule endoscopy has the ability to visualize the entire SB with very few complications. It is a sensitive test for the diagnosis of mucosal changes, but should be vie...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2012.01.005
更新日期：2012-06-01 00:00:00
abstract：:Understanding of hemorrhoidal pathology and treatment has come a long way. The theory of a sliding anal canal lining and the knowledge that hemorrhoidal cushions are a normal part of the anal anatomy should encourage symptom control rather than radical removal of tissue. Techniques that fix the cushions back in positi...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70173-4
更新日期：2001-03-01 00:00:00
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 focuses on the most recent therapies for patients with hepatitis C virus (HCV) who are naïve to therapy. The primary end point for the treatment of naïve HCV patients is viral eradication or a sustained virological response, which is defined as the absence of HCV in the serum, as detected by a sensitive p...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2004.04.003
更新日期：2004-09-01 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：:Irritable bowel syndrome (IBS) is a complex clinical process with multiple pathophysiologic mechanisms. There has recently been a shift in the treatment of patients with severe IBS symptoms to disease-modifying therapies as opposed to symptomatic treatment. Because pathophysiologic differences exist between men and wo...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2011.03.012
更新日期：2011-06-01 00:00:00
abstract：:Swallowed fluticasone and oral viscous budesonide are effective first-line therapies for eosinophilic esophagitis in children. Side effects are minimal without evidence of Cushing syndrome, as seen in treatment with systemic corticosteroids. New studies on alternative delivery systems and different corticosteroids (eg...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章
doi：10.1016/j.gtc.2014.02.008
更新日期：2014-06-01 00:00:00
abstract：:Anal cancer is rare and this helps to explain why anal pre-neoplastic conditions are poorly understood, especially with regard to their natural history and management. Anal intraepithelial neoplasia is closely linked to human papillomavirus infection and is particularly common in homosexuals and in immunosuppressed pa...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2007.08.001
更新日期：2007-12-01 00:00:00
abstract：:This brief review summarizes the physiology and pharmacology of eicosanoids and describes how they have been tested for possible application in liver disease and transplantation. The objective is to trace the stepwise application from the laboratory to the bedside. Although many questions remain to be answered, the ob...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70254-5
更新日期：1996-06-01 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：: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：: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：: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：:Constipation and diarrhea are common during pregnancy, occurring in up to one-third of women. Constipation is often the result of physiologic changes that occur during pregnancy, usually from hormonal effects on gastrointestinal motility. Diarrhea, on the other hand, is often caused by the same disorders responsible f...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70353-8
更新日期：1998-03-01 00:00:00
abstract：:Upper gastrointestinal bleeding (UGIB) is the most common emergency condition in gastroenterology. Although peptic ulcer and esophagogastric varices are the predominant causes, other conditions account for up to 50% of UGIBs. These conditions, among others, include angiodysplasia, Dieulafoy and Mallory-Weiss lesions, ...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2014.08.004
更新日期：2014-12-01 00:00:00
abstract：:Esophageal high-resolution manometry (HRM) improves the management of patients with nonobstructive dysphagia. It has increased the diagnostic yield for detecting achalasia and defined three clinically relevant achalasia subtypes. Esophagogastric junction (EGJ) outflow obstruction, defined as an impaired EGJ relaxation...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/j.gtc.2011.09.006
更新日期：2011-12-01 00:00:00
abstract：:Current practice guidelines recommend annual fecal occult blood test screening for colorectal cancer in the average-risk population over the age of 50. Efficacy of fecal occult blood test screening is supported by several controlled prospective trials and case-control studies. Implementation of this recommendation, in...
journal_title：Gastroenterology clinics of North America
pub_type： 杂志文章,评审
doi：10.1016/s0889-8553(05)70283-1
更新日期：1997-03-01 00:00:00
