相关实验视频
Updated: Jun 11, 2025

08:49
Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
16.4K
在肠道准备和结肠镜检查后,先前的尾切除和肠道微生物群在成年人中重新建立
Amelia J McGuinness1, Martin O'Hely1,2, Douglas Stupart3,4
1The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine and Barwon Health, Deakin University, Geelong, VIC 3220, Australia.
Biomedicines
|September 28, 2024
概括
人类的尾可能充当细菌安全之家. 这项研究发现,在结肠镜检查后,肠道微生物群的恢复在尾和没有尾的个体之间有所不同,这表明尾在肠道健康方面可能发挥作用.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 人类虫状尾在历史上被认为是遗留的.
- 新兴研究表明,尾具有免疫功能.
- 假设它可以作为有益的肠道细菌的储存库.
研究的目的:
- 调查尾作为细菌安全屋的潜在作用.
- 探索肠道微生物群在结肠中断后在有或没有尾的个体中重新建立.
主要方法:
- 对59名成年人进行了干预前后研究.
- 用16S rRNA测序分析了肠道微生物组成,在肠道准备和结肠镜检查之前和之后进行了测序.
- 参与者根据附录的存在或不存在来分组.
主要成果:
- 从基线看,肠道微生物群的组成在附录和没有附录的组之间有所不同.
- 这些差异在程序后减少,这表明"重置"效应.
- 两组都显示微生物群丰富度减少和多样性改变,在没有尾的人群中影响更大.
- 五个细菌系显示基于尾切除状态的差异性恢复.
结论:
- 尾可能在肠道微生物群在破坏后的差异性恢复中发挥作用.
- 初步证据支持附录作为微生物安全屋的假设.
- 需要进一步的研究来阐明尾在维持肠道微生物平衡中的功能.
相关概念视频
Appendicitis-II: Diagnostic Studies and Management
66
Diagnosing and managing appendicitis requires a structured and comprehensive approach that spans from initial assessment to postoperative care. Here is an overview of the process:
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
66
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
57
Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
57
Inflammatory Bowel Disease V: Surgical Management
128
Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
Here are some common surgical interventions for IBD:
128
Anatomy of the Intestines
71.6K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
71.6K
Endoscopic Procedures II: Colonoscopy
59
The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
59
Bacterial Flora of the Large Intestine
394
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
394

