相关实验视频
Updated: Jul 11, 2025

09:16
Assessment of Kidney Function in Mouse Models of Glomerular Disease
Published on: June 30, 2018
17.7K
Kif21a 缺乏导致膜过屏障功能受损
Hanna Riedmann1, Séverine Kayser1, Martin Helmstädter1
1Department of Medicine IV, Faculty of Medicine, Medical Center-University of Freiburg, Breisacher Str.113, 79106, Freiburg, Germany.
Scientific reports
|November 6, 2023
概括
类似素的蛋白质Kif21a对于脏过至关重要. 它在斑马鱼细胞中缺少,会导致脚过程消失,裂隔膜缺陷和严重的蛋白尿,突出显示其在膜过屏障功能中的作用.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 球体过血液,产生尿液和调节体液.
- 细胞是形成膜过屏障 (GFB) 的专门细胞,对于防止蛋白质泄漏至关重要.
- GFB的功能障碍导致蛋白尿和功能衰竭,但 podocyte 生物学仍然不完全理解.
研究的目的:
- 研究Kif21a类运动蛋白在膜过中的新型作用.
- 阐明Kif21a在细胞结构和GFB完整性中的功能.
主要方法:
- 使用斑马鱼作为脊椎动物在体内模型.
- 检查了Kif21a在细胞内的局部.
- 评估了Kif21a缺乏对细胞形态和GFB功能的影响.
主要成果:
- "Kif21a"特异地局部存在于细胞中.
- Kif21a 缺乏导致受体形态变化,包括脚过程消失.
- 在Kif21a缺乏斑马鱼中观察到缺陷的裂膜形成和漏水的GFB与严重的蛋白尿.
结论:
- 确定了Kif21a在维持适当的淋巴膜过屏障功能的新作用.
- 基夫21a对细胞架构和调节至关重要.
- 这些发现有助于理解细胞生物学和病机制.
相关概念视频
Renal Corpuscle
2.4K
The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
2.4K
Nephrons
2.6K
The kidneys are intricate organs with millions of working units known as nephrons. Each nephron features two major structures: the renal corpuscle, which facilitates blood plasma filtration, and the renal tubule, which handles the glomerular filtrate. Blood supply is directly linked to the nephrons. The renal corpuscle consists of the glomerulus, a capillary network, and the Bowman's capsule, a double-walled epithelial structure that encases the glomerulus. The filtering of blood plasma...
2.6K
Glomerular Filtration
1.5K
The filtration membrane in the renal system is a highly specialized structure essential for filtering blood. It consists of glomerular capillaries and podocytes, forming a selective barrier that permits the passage of water and small solutes while restricting most plasma proteins and blood cells.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
1.5K
Acute Kidney Injury II: Pathophysiology
9
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
9
Nephrotic Syndrome I : Introduction
8
Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of...
8
Factors Affecting Renal Clearance: Renal Impairment
101
Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
101

