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相关概念视频

Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

557
Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
557
Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

335
Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
335
Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

273
Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
273
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration01:28

Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration

188
Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
188

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相关实验视频

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Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring
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慢性病的特征和分类,通过空间MIST和深度学习算法.

Arafat Meah1, Nehaben A Gujarati2, Vivette D D'Agati3

  • 1Multiplex Biotechnology Laboratory, Department of Biomedical Engineering, State University of New York at Stony Brook, Stony Brook, New York, United States.

American journal of physiology. Renal physiology
|October 24, 2025
PubMed
概括

空间MIST分析揭示了与慢性病 (CKD) 纤维化进展相关的关键蛋白质标记物和空间模式. 这种方法有助于对疾病的严重程度进行分类,并发现CKD的新生物标志物.

关键词:
在CKD中,它是最重要的.图形神经网络是一个神经网络.机器学习是机器学习.一个单细胞分析.空间蛋白质组学 空间蛋白质组学

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科学领域:

  • 腎病理學和病理學.
  • 蛋白质组学和空间生物学
  • 计算生物学和生物信息学

背景情况:

  • 慢性病 (CKD) 涉及纤维化,这是一个影响细胞和分子结构的复杂过程.
  • 了解蛋白质的空间组织对于解决CKD中纤维性重塑至关重要.
  • 现有的方法可能无法完全捕捉纤维化病的高维空间复杂性.

研究的目的:

  • 应用信号标记的空间复杂免疫染色 (Spatial MIST) 用于人类脏活检的高维蛋白质组分析.
  • 为了研究纤维脏组织中的结构变化,细胞类型分布和空间关系.
  • 识别与CKD进展和纤维化严重程度相关的空间特征和蛋白质标记.

主要方法:

  • 利用空间MIST,一种蛋白质基因平台,对不同级别纤维化的人类脏活检.
  • 量化了22种蛋白质标记物,通过单细胞分辨率在全球和间歇性体中.
  • 采用空间近距离分析,统一的多元近似和投影 (UMAP) 聚类,以及与功能指标的相关性分析.
  • 开发了一个图形神经网络 (GNN) 分类器,训练了空间蛋白质组特征.

主要成果:

  • 空间近距离分析显示,内皮细胞和上皮细胞标记物的纤维化相关重组.
  • 鉴定出 podocyte 和免疫标记物的改变集群,CD31 和β-catenin之间的分离增加.
  • 维门丁和α光滑肌肉动蛋白 (α-SMA) 与纤维化严重程度正相关;威尔姆斯瘤1 (WT1) 与功能下降相反相关.
  • 一个GNN模型确定了巨素,WT1和维丁作为纤维化等级的关键预测因素.

结论:

  • 空间MIST有效地捕捉了CKD进展的分子异质性和空间特征.
  • 综合性方法为生物标志物发现和病理的空间信息分类提供了基础.
  • 这项研究强调了使用空间蛋白质组数据开发临床可操作的CKD诊断和预后工具的潜力.