Chronic atrophic gastritis （CAG） is an inflammatory condition characterized by the loss of gastric glandular structures which are replaced by connective tissue （non-metaplastic atrophy） or by glandular structures ...Chronic atrophic gastritis （CAG） is an inflammatory condition characterized by the loss of gastric glandular structures which are replaced by connective tissue （non-metaplastic atrophy） or by glandular structures inappropriate for location （metaplastic atrophy）. Epidemiological data suggest that CAG is associated with two different types of tumors： Intestinal-type gastric cancer （GC） and type I gastric carcinoid （T I GC）. The pathophysiological mechanisms which lead to the development of these gastric tumors are different, It is accepted that a multistep process initiating from Helico- bacterpylori-related chronic inflammation of the gastric mucosa progresses to CAG, intestinal metaplasia, dysplasia and, finally, leads to the development of GC. The T I GC is a gastrin-dependent tumor and the chronic elevation of gastrin, which is associated with CAG, stimulates the growth of enterochromaffin-like cells with their hyperplasia leading to the development of T I GC. Thus, several events occur in the gastric mucosa before the development of intestinatype GC and/ or T I GC and these take several years. Knowledge ofCAG incidence from superficial gastritis, its prevalence in different clinical settings and possible risk factors as- sociated with the progression of this condition to gastric neoplasias are important issues. This editorial intends to provide a brief review of the main studies regarding incidence and prevalence of CAG and risk factors for the development of gastric neoplasias.展开更多
目的:系统评价健脾益气化瘀解毒法(JPHYJD法)治疗慢性萎缩性胃炎(CAG)伴胃癌前病变(GPL)的疗效及安全性。方法:计算机检索国内外相关数据库,查找JPHYJD法治疗CAG-GLP的随机对照试验相关文献,采用Rev Man 5.3软件进行Meta分析。结果:共...目的:系统评价健脾益气化瘀解毒法(JPHYJD法)治疗慢性萎缩性胃炎(CAG)伴胃癌前病变(GPL)的疗效及安全性。方法:计算机检索国内外相关数据库,查找JPHYJD法治疗CAG-GLP的随机对照试验相关文献,采用Rev Man 5.3软件进行Meta分析。结果:共纳入合格文献32篇,共2 662例患者。Meta分析结果:JPHYJD法治疗CAG-GLP临床疗效方面、胃镜疗效、抗Hp有效率等方面优于单纯应用西药常规治疗,其差异均有统计学意义(P<0.00001);在改善胃痛、痞满、纳差、恶心、嗳气及安全性方面,JPHYJD法疗效亦优于西药常规治疗。结论:现有相关数据表明,JPHYJD法治疗CAG-GLP较单纯应用西药治疗临床疗效更好,胃镜疗效显著,能更有效抗Hp治疗,由于本Meta分析纳入研究较少,证据强度有限,上述结论仍需更多高质量研究加以验证。展开更多
Chronic gastritis （CG） is an inflammatory condition of the gastric mucosa, induced by various causes. A commonly-seen disease in clinical practice, it is found in about 80%-90% of patients undergoing gastroscopic ex...Chronic gastritis （CG） is an inflammatory condition of the gastric mucosa, induced by various causes. A commonly-seen disease in clinical practice, it is found in about 80%-90% of patients undergoing gastroscopic examination. The prevalence rate in the general population remains unclear. It is generally considered that its incidence rate accords with Helicobacter. pylori infection rate and the prevalence of CG is 30%-80% in China. Possible etiological factors include H. pylori infection, smoking, drinking alcohol, food allergies, duodenal juice reflux, drug-induced injuries, heredity, immunity, and radiation.^[1-8].展开更多
Androgen receptor （AR） gene has been extensively studied in diverse clinical conditions. In addition to the point mutations, trinucleotide repeat （CAG and GGN） length polymorphisms have been an additional subject ...Androgen receptor （AR） gene has been extensively studied in diverse clinical conditions. In addition to the point mutations, trinucleotide repeat （CAG and GGN） length polymorphisms have been an additional subject of interest and controversy among geneticists. The polymorphic variations in triplet repeats have been associated with a number of disorders, but at the same time contradictory findings have also been reported. Further, studies on the same disorder in different populations have generated different results. Therefore, combined analysis or review of the published studies has been of much value to extract information on the significance of variations in the gene in various clinical conditions. AR genetics has been reviewed extensively but until now review articles have focused on individual clinical categories such as androgen insensitivity, male infertility, prostate cancer, and so on. We have made the first effort to review most the aspects of AR genetics. The impact of androgens in various disorders and polymorphic variations in the AR gene is the main focus of this review. Additionally, the correlations observed in various studies have been discussed in the light of in vitro evidences available for the effect of AR gene variations on the action of androgens.展开更多
文摘Chronic atrophic gastritis （CAG） is an inflammatory condition characterized by the loss of gastric glandular structures which are replaced by connective tissue （non-metaplastic atrophy） or by glandular structures inappropriate for location （metaplastic atrophy）. Epidemiological data suggest that CAG is associated with two different types of tumors： Intestinal-type gastric cancer （GC） and type I gastric carcinoid （T I GC）. The pathophysiological mechanisms which lead to the development of these gastric tumors are different, It is accepted that a multistep process initiating from Helico- bacterpylori-related chronic inflammation of the gastric mucosa progresses to CAG, intestinal metaplasia, dysplasia and, finally, leads to the development of GC. The T I GC is a gastrin-dependent tumor and the chronic elevation of gastrin, which is associated with CAG, stimulates the growth of enterochromaffin-like cells with their hyperplasia leading to the development of T I GC. Thus, several events occur in the gastric mucosa before the development of intestinatype GC and/ or T I GC and these take several years. Knowledge ofCAG incidence from superficial gastritis, its prevalence in different clinical settings and possible risk factors as- sociated with the progression of this condition to gastric neoplasias are important issues. This editorial intends to provide a brief review of the main studies regarding incidence and prevalence of CAG and risk factors for the development of gastric neoplasias.
文摘目的:系统评价健脾益气化瘀解毒法(JPHYJD法)治疗慢性萎缩性胃炎(CAG)伴胃癌前病变(GPL)的疗效及安全性。方法:计算机检索国内外相关数据库,查找JPHYJD法治疗CAG-GLP的随机对照试验相关文献,采用Rev Man 5.3软件进行Meta分析。结果:共纳入合格文献32篇,共2 662例患者。Meta分析结果:JPHYJD法治疗CAG-GLP临床疗效方面、胃镜疗效、抗Hp有效率等方面优于单纯应用西药常规治疗,其差异均有统计学意义(P<0.00001);在改善胃痛、痞满、纳差、恶心、嗳气及安全性方面,JPHYJD法疗效亦优于西药常规治疗。结论:现有相关数据表明,JPHYJD法治疗CAG-GLP较单纯应用西药治疗临床疗效更好,胃镜疗效显著,能更有效抗Hp治疗,由于本Meta分析纳入研究较少,证据强度有限,上述结论仍需更多高质量研究加以验证。
基金Supported by the West-Pacific Region of World Health Organization(No.WP/2006/CHN/EDM/3.2/001)
文摘Chronic gastritis （CG） is an inflammatory condition of the gastric mucosa, induced by various causes. A commonly-seen disease in clinical practice, it is found in about 80%-90% of patients undergoing gastroscopic examination. The prevalence rate in the general population remains unclear. It is generally considered that its incidence rate accords with Helicobacter. pylori infection rate and the prevalence of CG is 30%-80% in China. Possible etiological factors include H. pylori infection, smoking, drinking alcohol, food allergies, duodenal juice reflux, drug-induced injuries, heredity, immunity, and radiation.^[1-8].
文摘Androgen receptor （AR） gene has been extensively studied in diverse clinical conditions. In addition to the point mutations, trinucleotide repeat （CAG and GGN） length polymorphisms have been an additional subject of interest and controversy among geneticists. The polymorphic variations in triplet repeats have been associated with a number of disorders, but at the same time contradictory findings have also been reported. Further, studies on the same disorder in different populations have generated different results. Therefore, combined analysis or review of the published studies has been of much value to extract information on the significance of variations in the gene in various clinical conditions. AR genetics has been reviewed extensively but until now review articles have focused on individual clinical categories such as androgen insensitivity, male infertility, prostate cancer, and so on. We have made the first effort to review most the aspects of AR genetics. The impact of androgens in various disorders and polymorphic variations in the AR gene is the main focus of this review. Additionally, the correlations observed in various studies have been discussed in the light of in vitro evidences available for the effect of AR gene variations on the action of androgens.
