诺托布朗基乌斯作为一个老龄化研究厌食症的模型:一个进化,解剖学,组织学,免疫组织化学和分子研究
Kamel Mhalhel1, Marilena Briglia1, Marialuisa Aragona1
1Zebrafish Neuromorphology Lab, Department of Veterinary Sciences, University of Messina, Via G. Palatucci snc, 98168 Messina, Italy.
概括
非洲的一年鱼,Nothobranchius rachovii,作为一个新型的老龄化的厌食症模型. 研究人员研究了它的胃肠道和胆囊托基宁 (Cck) 表达,以了解老年人的食欲丧失.
科学领域:
- 生物遗传学 生物遗传学
- 比较生物学的比较生物学
- 胃肠病学 胃肠病学
背景情况:
- 衰老厌食症是老年人常见的疾病,涉及食欲下降和体重减轻.
- 类激素胆囊托基宁 (Cck) 参与食欲调节和腹感.
- 假设增加的Cck水平会导致老年人的食欲丧失,但体内机制需要进一步研究.
研究的目的:
- 建立Nothobranchius rachovii作为研究衰老厌食症的模型生物.
- 为了研究胃肠道形态和Cck表达模式在Nothobranchius rachovii.
- 为了解Cck在与年龄相关的食欲丧失中的作用的进化和比较方面提供见解.
主要方法:
- 使用NCBIblastp和Tree Viewer进行比较和进化分析.
- 对Nothobranchius rachovii胃肠道进行宏观,组织学和超结构性检查.
- 免疫光标记,西部涂抹和qRT-PCR来分析Cck表达模式.
主要成果:
- 诺托布朗基乌斯·拉科维肠表现出不同的细分,具有不同的上皮特征.
- 在肠道沿线观察到肌肉束,小高度和杯状细胞的减少.
- 胆囊托基宁 (Cck) 表达局部化到前肠内皮细胞.
结论:
- 诺托布朗奇乌斯·拉科维 (Nothobranchius rachovii) 被提议作为一个适合于衰老研究的厌食症的模型.
- 这项研究提供了关于这个模型中的胃肠道形态和Cck表达的基础数据.
- 在不同年龄组对Nothobranchius rachovii的进一步研究可以阐明Cck在与衰老相关的食欲下降中的作用.
关键词:
衰老的衰老 衰老的衰老厌食症 厌食症是一种厌食症.Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck Cck胆囊性托基尼尼的使用.肠道 肠道 肠道 肠道鱼是一种鱼.模型模型模型模型模型这不是hobranchius.
相关概念视频
01:28Anorexia Nervosa
155
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
155
01:30Bulimia Nervosa
166
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
166
01:09Changes in the Appendicular Skeleton with Age
2.1K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
2.1K
01:23Binge Eating Disorders
148
Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
148
01:09Clearance Models: Physiological Models
95
Drug clearance is a critical pharmacokinetic process involving the irreversible removal of drugs from the body through various organs over a specified time period. Physiological models are indispensable in determining organ-specific clearance, defined by the proportion of the drug eliminated per unit of time from the organ's blood volume.
The organ's clearance rate depends on the blood flow to the organ and the extraction ratio (E). The extraction ratio describes the organ's...
The organ's clearance rate depends on the blood flow to the organ and the extraction ratio (E). The extraction ratio describes the organ's...
95