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相关概念视频

Filtration and Urine Formation01:32

Filtration and Urine Formation

49.0K
The function of the kidneys is to filter, reabsorb, secrete, and excrete. Every day the kidneys filter nearly 180 liters of blood, initially removing water and solutes but ultimately returning nearly all filtrates into circulation with the help of osmoregulatory hormones. This process removes wastes and toxins but is also crucial to maintain water and electrolyte levels. Most of these functions are performed by the tiny but numerous nephrons contained within the kidneys.
49.0K
Kidney Structure01:45

Kidney Structure

68.3K
The kidneys are two large bean-shaped organs located in the upper abdomen. They filter the blood several times a day to remove toxins and rebalance water and electrolytes of the circulatory system via the renal veins. The kidneys receive blood directly from the heart via the renal arteries. These arteries enter the kidney at the hilum, the concave surface of the bean, where they branch and divide into smaller vessels and capillaries.
68.3K
Nephrons01:10

Nephrons

1.9K
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...
1.9K
Hormonal Regulation01:33

Hormonal Regulation

32.8K
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.
32.8K
Renal Tubule and Collecting Duct01:24

Renal Tubule and Collecting Duct

649
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...
649
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

51
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
51

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相关实验视频

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Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney
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Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney

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儿科病学的最新发展

Anna Wasilewska1

  • 1Department of Paediatrics and Nephrology, Medical University of Białystok, 15-274 Białystok, Poland.

Journal of clinical medicine
|March 17, 2025
PubMed
概括

尿路感染 (UTI) 在儿童中很常见. 及时诊断和治疗对于预防损伤和长期并发症至关重要.

科学领域:

  • 儿科 儿科 儿科
  • 传染性疾病 传染性疾病
  • 细菌学 细菌学是一门学科.

背景情况:

  • 尿路感染 (UTI) 是儿童群体中普遍存在的细菌感染.
  • 儿童的尿路感染可能导致显著的发病率,包括脏痕和潜在的长期脏损伤,如果不有效地管理.
  • 早期识别和适当管理对于有利的结果至关重要.

研究的目的:

  • 审查当前对儿科尿路感染的理解.
  • 概述儿童尿路感染的诊断方法和治疗指南.
  • 强调及时干预对于预防并发症的重要性.

主要方法:

  • 对儿科尿路感染现有文献的系统审查.
  • 对诊断标准和成像方法的分析.
  • 评估当前的抗微生物治疗策略和耐药性模式.

主要成果:

  • 儿童中尿路感染的常见致病原体包括大肠杆菌.
  • 诊断方法包括尿液分析,尿液培养和敏感性测试.
  • 治疗通常需要根据培养结果和易感性使用适当的抗生素.

结论:

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Isolation, Characterization, And High Throughput Extracellular Flux Analysis of Mouse Primary Renal Tubular Epithelial Cells
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Isolation, Characterization, And High Throughput Extracellular Flux Analysis of Mouse Primary Renal Tubular Epithelial Cells
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  • 儿童尿路感染需要及时诊断和有效的抗生素治疗.
  • 遵守治疗指南可以最大限度地降低损伤的风险.
  • 持续监测抗菌素耐药性对于优化治疗疗效至关重要.