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低的细菌体丰富度与2型糖尿病中的内皮功能障碍有关
Yoko Omura-Ohata1, Cheol Son2, Hisashi Makino2
1Division of Diabetes and Lipid Metabolism, National Cerebral and Cardiovascular Center, 6-1Kishibe-shin-machi, Suita, Osaka 564-8565, Japan; Department of Advanced Cardiovascular Prevention and Epidemiology, Tohoku University Graduate School of Medicine and Tohoku University Hospital, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
肠道微生物群中的低Bacteroides丰富性与内皮功能障碍有关,内皮功能障碍是动脉样硬化的一个危险因素,在2型糖尿病患者 (T2D) 中. 这一发现突出了在T2D患者中管理心血管疾病的潜在治疗目标.
科学领域:
- 微生物学 微生物学
- 心血管医学 心血管医学
- 内分泌学 在内分泌学.
背景情况:
- 肠道微生物群失生症与动脉样硬化的发病有关.
- 患有2型糖尿病 (T2D) 和动脉样硬化症的患者经常表现出降低了肠道细菌属Bacteroides的水平.
- 这种细菌体的减少可能会导致动脉样硬化心血管疾病的风险增加.
研究的目的:
- 为了研究肠道微生物群中Bacteroides相对丰度较低和内皮功能障碍之间的关联.
- 探索Bacteroides丰富度和T2D患者的反应性高血压指数 (RHI) 之间的关系.
- 检查与临床参数 (如短链脂肪酸和炎症标志物) 的潜在相关性.
主要方法:
- 在93名患有T2D的患者中,使用16S核糖体RNA基因测序分析了便肠道微生物组成.
- 通过测量反应性高血压指数 (RHI) 来评估内皮功能.
- 进行了统计分析,包括相关性和热图分析,以比较低与高的Bacteroides丰度的群体.
主要成果:
- 在相对细菌繁多的自然对数和RHI (Ln-RHI) 的自然对数之间观察到正相关性.
- 与高丰度组相比,低丰度Bacteroides组的患者表现出明显较低的Ln-RHI.
- 血乙酸盐水平与 Bacteroides 丰富度相关,低 Bacteroides 组显示出更高高灵敏度 C-反应蛋白水平的趋势.
结论:
- 在肠道微生物群中减少Bacteroides的丰富性与内皮功能受损 (低RHI) 相关.
- 低细菌体丰富度可能是T2D患者动脉样硬化风险增加的一个因素.
- 需要进一步的研究来阐明精确的机制和治疗影响.
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