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相关概念视频

Hormonal Regulation01:40

Hormonal Regulation

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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.
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Pathophysiology of Peptic Ulcer Disease: Injurious Factors01:22

Pathophysiology of Peptic Ulcer Disease: Injurious Factors

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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...
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Acid Suppressive Drugs for Peptic Ulcer Disease: Histamine H2-Receptor Antagonists01:28

Acid Suppressive Drugs for Peptic Ulcer Disease: Histamine H2-Receptor Antagonists

1.3K
Histamine H2 receptors, which are intricately located on the basolateral membrane of parietal cells, play a crucial role in modulating gastric acid secretion. When released from enterochromaffin-like cells, histamine engages H2 receptors, initiating the cyclic AMP (cAMP) pathway. In this pathway, adenylyl cyclase converts ATP into cAMP, elevating intracellular cAMP levels. The activation of protein kinase A follows, stimulating the proton pump. This stimulation prompts the secretion of hydrogen...
1.3K
Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids01:31

Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids

1.1K
In the complex environment of the gastric lumen, excessive acid secretion can lead to the formation or worsening of ulcers within the delicate mucosal layer. Antacids, such as sodium bicarbonate and calcium carbonate, provide relief by neutralizing this acid, transforming it into harmless salt and water. This neutralization process raises the gastric pH from a highly acidic level of 1 to a more basic 3-4, reducing the acidity within the stomach.
However, this neutralization reaction between...
1.1K
Hormones Secreted by the Stomach01:25

Hormones Secreted by the Stomach

2.9K
Enteroendocrine cells, accounting for only 1% of stomach epithelial cells, play a significant role in digestion and are classified by their digestive hormone secretions.
Each of these hormones secreted by different enteroendocrine cells plays a unique role in digestion. Here are a few examples:
2.9K
Intestinal Phase of Digestion01:29

Intestinal Phase of Digestion

10.1K
The intestinal phase of digestion is the third and final stage of the digestive process, occurring after the cephalic and gastric phases. It begins when chyme, a partially digested mixture of food and digestive enzymes, enters the small intestine from the stomach. This phase is crucial for nutrient absorption and involves complex hormonal and enzymatic interactions.
The arrival of the chyme in the small intestine distends the duodenum, which triggers the enterogastric reflex. This distension...
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Systems Biology of Metabolic Regulation by Estrogen Receptor Signaling in Breast Cancer
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摄入碳水化合物和激活胃酸分泌会减少胃雌激素分泌.

Takao Ito1, Yuichi Ozaki2, Atsushi Tanaka2

  • 1Department of Cell Biology and Anatomy, Graduate School of Medicine, Wakayama Medical University, Wakayama, Wakayama, Japan.

Scientific reports
|March 29, 2025
PubMed
概括
此摘要是机器生成的。

胃顶层细胞产生雌激素,从而降低血液脂质. 饮食中的碳水化合物降低雌激素,而脂质增加它,影响肝脏脂肪的产生.

关键词:
雌激素是一种雌激素.脂肪肝是一种脂肪肝.这就是GLP-1.胰岛素是一种胰岛素.脂质生殖 (Lipogenesis) 是一种胃 胃是指胃的部分.

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科学领域:

  • 内分泌学 在内分泌学.
  • 胃肠病学 胃肠病学
  • 代谢过程中的代谢.

背景情况:

  • 胃壁状细胞分泌雌激素,受血脂水平的影响.
  • 雌激素在降低血液脂质方面发挥作用.
  • 状细胞用于酸和雌激素生产的能量使用与脂质水平和分泌有关.

研究的目的:

  • 研究食后变化对胃雌激素产生的影响.
  • 确定饮食摄入量,胃酸分泌和雌激素水平之间的关系.
  • 澄清胃雌激素在调节肝脂发生的作用.

主要方法:

  • 分析吃饭后血中的雌激素和脂肪酸 (FFA) 水平.
  • 静脉注射脂质来评估雌激素的恢复.
  • 用隔离的胃腺上皮质和激素操纵进行实验.
  • 在动物体内对大鼠进行研究,以检查不同养条件下的雌激素水平.

主要成果:

  • 饮食后血中的雌激素和FFA水平下降,特别是在摄入碳水化合物后.
  • 静脉注射脂质部分恢复了食后雌激素水平.
  • 抑制胃酸分泌的荷尔蒙在体外增加雌激素的产生.
  • 抑制胃酸分泌会提高食后大鼠的血液雌激素.

结论:

  • 饮食中的碳水化合物和脂质可以差异调节胃雌激素的产生.
  • 碳水化合物减少,而脂质增加,胃雌激素合成.
  • 胃中的雌激素和胰岛素会影响肝脏的新型脂质生成,这表明它在控制饮食脂肪方面发挥了作用.
  • 建议的机制:碳水化合物和脂质控制胃雌激素以调节肝脏脂质生成.