益生菌调节脏静的季节性变化 在格兰汉姆斯特格兰汉姆斯特
Sayantan Sur1, Zoe Adam1, Timothy A Liddle1
1School of Biodiversity, One Health & Veterinary Medicine, University of Glasgow, Glasgow G61 1QH, UK.
Endocrinology
|July 10, 2025
概括
季节性光照和益生菌素 (PRL) 触发了子的脏变化. 长日和PRL促进脏生长和管管扩张,而短日导致缩,揭示了PRL在季节性脏适应中的作用.
科学领域:
- 内分泌学 在内分泌学.
- 比较生理学比较生理学
- 分子生物学分子生物学
背景情况:
- 脊椎动物生理学,包括新陈代谢和繁殖,受到季节性光周期变化的影响.
- 质量和生理学的年度变化是公认的,但潜在的内分泌和分子机制仍然不清楚.
- 光敏激素益生素 (PRL) 与季节性能量平衡有关,但其在编程脏调节中的作用尚未被探索.
研究的目的:
- 调查光周期和益生菌 (PRL) 在季节性调整质量,形态和基因表达中的调节作用.
- 阐明内分泌和分子途径调解光周期诱导的脏变化.
主要方法:
- 评价的消化行为,组织学,和Djungarian子的转录组概况暴露于不同的光周期和PRL治疗.
- 对光周期和PRL响应基因模块的分析.
主要成果:
- 长时间的光周期和PRL治疗导致脏缩和卷管扩张.
- 短的光周期导致质量,形态和管状结构的减少.
- 转录组分析确定了与线粒体新陈代谢,溶液运输和上皮细胞重塑相关的基因模块.
- 通过长光周期和PRL降低Cdh2 (N-cadherin) 的调节与卷状管体直径的增加相关,这表明在上皮重塑中发挥了作用.
结论:
- 益生菌被确定为编程季节性功能的一个关键激素调节剂.
- 季节性光周期通过PRL介导的途径直接影响脏生理.
- Cdh2被认为是参与光周期驱动的适应和管状扩张的分子标.
相关概念视频
Hormonal Regulation of the Menstrual Cycle
713
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
713
Renal Tubule and Collecting Duct
1.5K
The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
1.5K
Hormonal Regulation
33.7K
The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
33.7K
Hormones of the Pituitary Gland
7.1K
The small, pea-sized pituitary gland is located at the base of the brain. It is crucial in regulating various bodily functions, from growth to reproduction. The gland is divided into the anterior lobe and the posterior lobe. The secretory cell clusters in the pars distalis of the anterior pituitary lobe are controlled by hypothalamic regulators and synthesize six primary hormones.
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
7.1K
Renal Regulation of Acid-Base Balance
722
Metabolic reactions in the body produce nonvolatile acids, such as sulfuric acid, which generate an acid load of approximately 1 mEq of H+ per kilogram of body weight daily. Excreting H+ in the urine is essential to balance this acid load.
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...
722
Regulation of Hormone Secretion
4.1K
Regulation of hormone secretion is a finely tuned orchestration driven by various types of stimuli, encompassing neural, humoral, and hormonal signals. Environmental cues instigate neural stimuli, where action potentials traverse nerve fibers to reach their designated targets. An illustrative scenario is the body's response to stress, wherein the sympathetic nervous system releases epinephrine from the adrenal glands, inducing the well-known 'fight or flight' reaction.
Humoral...
Humoral...
4.1K


