严重营养不良儿童胸膜缩的因素:系统性审查和元分析
Cecilie Lindebjerg1, Thora Wesenberg Helt2, Vibeke Brix Christensen1,3,4
1Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
Scandinavian journal of immunology
|March 17, 2025
概括
营养不良会通过改变荷尔蒙水平而影响胆小板. 这项研究发现,瘦素降低,皮质醇, ghrelin 和 IL-10 增加,导致胸腺缩和 T 辅助细胞变化.
科学领域:
- 内分泌学 在内分泌学.
- 免疫学 免疫学 免疫学
- 营养科学 营养科学
背景情况:
- 胸腺在免疫系统发育中起着至关重要的作用.
- 众所周知,营养不良会损害免疫功能,但具体的荷尔蒙机制尚未完全理解.
研究的目的:
- 研究素和相关激素在营养不良期间对胸腺功能的影响.
- 在营养不良状态下阐明丁, ghrelin,皮质醇,细胞因子和胆小板缩之间的关系.
主要方法:
- 进行了16项研究的系统审查和元分析.
- 关于瘦素, ghrelin,皮质醇和细胞因子水平的数据是从检索的文章中提取出来的.
- 使用JBI批判性评估工具评估偏差风险,并使用STATA合成结果.
主要成果:
- 营养不良的状态与瘦素水平降低和皮质醇, ghrelin 和 Interleukin 10 (IL-10) 的增加有关.
- 效应大小表明了勒普丁 (3.01),格林 (-1.71),皮质醇 (-1.16) 和IL-10 (-0.34) 的显著变化.
- 干扰素玛 (IFN-γ) 没有显著变化 (-0.02).
结论:
- 莱普,皮质醇, ghrelin 和 IL-10 都与营养不良期间观察到的胸腺缩有关.
- 在营养不良的个体中,T-辅助细胞的变化有助于胸细胞枯竭.
- 瘦素似乎是营养不良引起的胸腺变化的促成因素,但不是唯一的解释.
相关概念视频
Metabolic States of the Body: Fasting and Starvation
2.9K
During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
2.9K
Pulmonary Tuberculosis I
1.7K
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
1.7K
Anorexia Nervosa
2.1K
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...
2.1K
Cellular Adaptation I: Introduction and Atrophy
90
Cells can adapt to environmental changes to maintain function and avoid injury, a process called cellular adaptation. Adapted cells exist in a reversible intermediate state with changes in size, number, phenotype, metabolism, or function. These responses help cells meet altered physiological or pathological demands; for example, enlargement of breast and uterine tissues during pregnancy. Early adaptations may enhance function, but persistent stress eventually causes tissue damage.Types of...
90
Hypothyroidism II: Pathophysiology
35
Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...
35
Myasthenia Gravis ll: Pathophysiology
69
The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...
69


