囊素C与肌素的功能之间的差异以及与肌肉质量和肌肉脆弱的关联
Julia H Yuan1, Dena E Rifkin1,2, Charles Ginsberg1
1University of California San Diego, San Diego, California, USA.
Journal of the American Geriatrics Society
|May 31, 2024
概括
较高的估计膜过率差异 (eGFRDiff) 与老年男性的脆弱性风险降低有关. 全身肌肉质量,通过化肌酸 (D3Cr) 稀释测量,部分解释了这一关联,突出了脆弱的非GFR因素.
科学领域:
- 老年学是一门学科.
- 腎臟病學 (nephrology) 是一種醫學.
- 生物标志物 生物标志物
背景情况:
- 估计的膜过率之间的差异由囊素C (eGFRCys) 和肌素 (eGFRCreat),称为eGFRDiff,与脆弱性风险有关.
- 基于肌的eGFR受肌肉质量的影响要大于基于囊的eGFR,这表明肌肉质量是潜在的解释因素.
- 以前的研究缺乏精确的全身肌肉质量测量来证实这一假设.
研究的目的:
- 为了研究eGFRDiff和全身肌肉质量之间的关联,通过化肌酸 (D3Cr) 稀释测量.
- 为了确定肌肉质量是否介于老年男性的eGFRDiff和脆弱性之间的关系.
主要方法:
- 从MrOS研究 (14年) 中对490名男性进行横截面分析.
- 使用CKD-EPI方程计算eGFRDiff;主要结果是D3Cr肌肉质量.
- 使用表型标准评估脆弱性;通过回归分析检查关联.
主要成果:
- 每个eGFRDiff标准偏差的增加都与1.4公斤更高的D3Cr肌肉质量相关 (p < 0.0001).
- 较高的eGFRDiff显示出较低的脆弱率 (OR = 0.63).
- 这种关联在调整D3Cr肌肉量后部分减弱并变得无意义.
结论:
- 增加的eGFRDiff与老年男性的脆弱性减少有关.
- 全身肌肉质量在很大程度上有助于解释eGFRDiff与脆弱性之间的关联.
- 肌素和肌素C的非GFR决定因素,特别是肌肉质量,对于理解脆弱性至关重要.
相关概念视频
01:17Factors Affecting Renal Clearance: Renal Impairment
84
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...
84
01:23Renal Clearance
892
The glomerular filtration rate (GFR) is a critical marker of kidney function, reflecting the efficiency of filtration by the glomeruli. Renal clearance of specific substances, such as inulin or creatinine, is commonly used to measure GFR.
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...
892