低碳水化合物,高脂肪饮食改变口腔微生物组,而不会否定酸盐对甜菜汁补充剂的反应
Louise E Cato1, Alannah K A McKay2, Joanna E L'Heureux3
1School of Health, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia.
Nutrients
|December 23, 2023
概括
低碳水化合物,高脂肪饮食改变了口腔微生物群,但没有影响补充后的酸盐水平. 口腔微生物群适应饮食变化,尽管细菌多样性减少,但保持了酸盐减少能力.
科学领域:
- 运动营养 运动营养
- 微生物组研究 微生物组研究
- 饮食补充剂的使用
背景情况:
- 运动员的低碳水化合物,高脂肪 (LCHF) 饮食可能会损害运动经济.
- 饮食中酸盐补充剂通过氧化的产生增强了运动经济性.
- 口腔细菌促进酸盐转化为酸盐,这一过程可能受到饮食的影响.
研究的目的:
- 为了研究LCHF饮食对口腔微生物群的影响.
- 在LCHF饮食后补充酸盐后,评估酸盐度在血中的变化.
主要方法:
- 高度训练有素的男性跑步者接受了为期5天的LCHF或高碳水化合物 (HCHO) 饮食干预.
- 参与者饮用了含有酸盐的甜菜汁.
- 唾液样本分析了口腔微生物组合 (16S rRNA测序);血液样本测量了血中酸盐和酸盐.
主要成果:
- 低碳化合物饮食减少了口腔细菌的多样性,并改变了特定细菌属 (如Neisseria,Prevotella) 的丰富性.
- 在补充酸盐后,血中酸盐度增加,独立于饮食干预.
- 没有发现饮食和酸盐补充剂对血亚酸盐的影响之间的显著相互作用.
结论:
- 低碳化合物饮食显著改变了口腔微生物组合,减少了细菌的多样性.
- 口服酸盐降低能力似乎对饮食变化有弹性,尽管减少了多样性,但仍保持了功能.
- 酸盐补充剂在运动员的LCHF和HCHO饮食中类似地增加了血中酸盐水平.
相关概念视频
Bacterial Flora of the Large Intestine
459
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.
459
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
334
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
334
What is Monogastric Digestion?
71.2K
The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
71.2K


