遗传多态度与宿主易受Helicobacter pylori感染之间的关联:系统性审查和元分析
H C O Santos-Dutra1,2, C C P Costa2, D N Maciel1
1Universidade Federal de Goiás - UFG, Instituto de Patologia Tropical e Saúde Pública - IPTSP, Núcleo de Estudo em Helicobacter pylori NEHP, Goiânia, GO, Brasil.
Brazilian journal of biology = Revista brasleira de biologia
|December 3, 2025
概括
宿主遗传变异会影响对Helicobacter pylori感染的易感性. 特定的基因多态,如IL1B-C511T和TLR4A>G,增加风险,而其他,如TLR1C>T,提供保护.
科学领域:
- 遗传学和分子生物学
- 传染性疾病 传染性疾病
- 免疫学 免疫学 免疫学
背景情况:
- 宿主遗传因素在确定对传染病的易感性方面发挥着至关重要的作用.
- Helicobacter pylori 感染是一个重大的全球健康问题,导致炎症和各种临床结果.
研究的目的:
- 系统地审查和描述与Helicobacter pylori感染易感性相关的宿主遗传多态性.
- 识别特定的基因组变异,这些变异有助于个人感染H. pylori的风险概况.
主要方法:
- 在五个数据库中,按照PRISMA指南进行了系统审查.
- 包括观察性研究,对六种特定多态进行了元分析:IL1B-C31T,IL1B-C511T,TLR1 C>T,TLR4 A>G,TLR10 A>T和TNF308 G>A.
主要成果:
- 包括35项研究,确定了30个基因中的43种多态.
- IL1B-C511T和TLR4 A>G多态性与对H. pylori的敏感性增加有关.
- 相反,TLR1 C>T和TLR10 A>T多态表现出对感染的保护作用.
结论:
- 宿主遗传决定因素与对H. pylori感染的易感性有显著联系.
- 这项研究突出了关键的基因组变异,为H. pylori建立了宿主遗传风险概况.
- 这些发现支持针对H. pylori感染开发有针对性的预防,诊断和个性化医疗策略.
相关概念视频
Peptic Ulcer Disease I: Introduction
715
Peptic Ulcer Disease (PUD) is characterized by mucosal excavation in the esophagus, stomach, pylorus, or duodenum. It can manifest as acute or chronic based on the extent and duration of mucosal involvement.
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...
715
Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy
1.1K
Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
1.1K
Single Nucleotide Polymorphisms-SNPs
17.9K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
17.9K
Pathophysiology of Peptic Ulcer Disease: Injurious Factors
1.1K
Peptic ulcers are sores on the stomach's inner lining and the upper small intestine, which are the result of disruptions in the mucosal layer that houses parietal cells which produce gastric acid, and chief cells which secrete pepsinogen.
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
In the antrum region, G cells secrete the gastrin hormone that binds to gastrin-cholecystokinin-B (CCK2) receptors on parietal and enterochromaffin-like (ECL) cells in the fundic glands. Simultaneously, the vagus nerve releases acetylcholine, which binds...
1.1K
Peptic Ulcer Disease III: Clinical Manifestations and Diagnostic Studies
507
Peptic ulcer disease (PUD) presents with diverse symptoms depending on the location and severity of the ulcer. Clinical manifestations of peptic ulcer include dull pain and a burning sensation in the mid-epigastric region.
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
Few clinical manifestations differentiate gastric ulcers from duodenal ulcers. Distinctions in the location, timing, and pain relief are crucial for healthcare providers in differentiating between gastric and duodenal ulcers during clinical assessments.
507
Gastritis-II: Pathophysiology
1.1K
Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
1.1K


