百合素通过调节肠道神经元和胆固醇系统来调节肠道不运动和行为障碍
Danna Wang1,2, Siyi Jiao1, Qianqian Guo1
1College of Food Science and Engineering, Northwest A&F University, Yangling, China. chunxiaxiao@nwafu.edu.cn.
Food & function
|June 6, 2025
概括
在小鼠中,烯 (LYC) 补充改善了肠道运动性,并减少了与便秘相关的抑郁和焦虑. 这种饮食干预恢复了肠道屏障功能,有益细菌和神经元信号传递.
科学领域:
- 胃肠道学和神经科学
- 营养科学 营养科学
- 微生物组研究 微生物组研究
背景情况:
- 肠道不运动,以排便问题为特征,经常与抑郁症和焦虑症同时发生.
- 利科 (LYC) 是一种具有抗氧化和抗炎作用的胡卜素,对肠道动力障碍和相关的行为症状有潜在但尚未证明的益处.
研究的目的:
- 为了研究Lycopene (LYC) 对肠道动力障碍和并发性抑郁和焦虑类行为的影响.
- 在小鼠便秘模型中阐明LYC作用的潜在机制.
主要方法:
- 通过使用diphenoxylate (Dip) 诱导了一种小鼠便秘模型.
- 小鼠接受了百毫克每公斤-1d-1的Lycopene (LYC) 治疗.
- 分析了肠道过渡,肠道过渡率,肠道屏障完整性,短链脂肪酸 (SCFA) 生产,肠道微生物群组成,肠道神经功能 (HuC/D,Tuj1),神经递质水平和大脑胆能通路.
主要成果:
- LYC治疗显著改善了肠道传输时间和肠道传输速率,缓解了便秘.
- 在便秘的小鼠中,LYC减少了类似抑郁和焦虑的行为.
- LYC增强了肠道屏障完整性,增加了SCFA生产,重新平衡了有利于有益细菌的肠道微生物群 (例如,Bifidobacterium*,Akkermansia*),恢复了肠道神经元功能,并调节了大脑胆固醇通路,增加了乙胆 (Ach) 水平并减少了神经炎症.
结论:
- 莱科 (LYC) 在小鼠模型中有效地改善了肠道动力障碍和相关行为障碍.
- 通过改善肠道屏障功能,调节肠道微生物群,恢复神经元功能和影响大脑神经化学,LYC发挥其作用.
- 这项研究强调LYC作为针对肠道动力障碍和并发性行为功能障碍的营养策略的潜在功能性饮食成分.
相关概念视频
Enteric Nervous System: Regulation of GI Motor Activity
798
The Enteric Nervous System (ENS) plays a pivotal role in regulating gastrointestinal or GI motor activity. This complex network of nerves, deeply embedded within the gut wall, responds to changes in the gut environment and receives input from both the autonomic nervous system and the central nervous system. By doing so, the ENS operates various programs tailored to the body's nutritional status and needs.
During periods of fasting, the ENS initiates the migrating myoelectric complex, a...
During periods of fasting, the ENS initiates the migrating myoelectric complex, a...
798
Drugs Affecting GI Tract Motility: Serotonin Receptor Agonists
421
Serotonin, a crucial neurotransmitter synthesized by enterochromaffin cells, plays a cardinal role in regulating gastrointestinal (GI) motility. With over 90% of the body's total serotonin in the GI tract, its influence on digestive processes is profound. Serotonin is swiftly released upon various stimuli, such as food boluses or certain drugs, triggering intrinsic sensory neurons in the myenteric plexus and extrinsic vagal and spinal sensory neurons. This leads to the activation of the...
421
Drugs for Treatment of Constipation-Predominant IBS
353
Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
353
Hormonal Regulation
44.7K
Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
44.7K
Regulation of Food Intake
539
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
539
Drugs Affecting GI Tract Motility: Opioids as Antidiarrheal Agents
335
Diarrhea, a condition marked by frequent loose or watery bowel movements, can be triggered by multiple factors such as viral or bacterial infections, food intolerances, anxiety, medications, and digestive disorders. Symptoms may include abdominal pain, bloating, nausea, and cramping. Severe or prolonged diarrhea can lead to complications like electrolyte imbalances, malnutrition, and dehydration if left untreated.
Opioids, widely used antidiarrheal agents, mitigate diarrhea by slowing down...
Opioids, widely used antidiarrheal agents, mitigate diarrhea by slowing down...
335


