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Analysis of Urinary Metanephrines Using Liquid Chromatography Tandem Mass Spectrometry.
Methods Mol Biol
January 2025
Analytic Biochemistry, Calculi and Manual Chemistry, Mass Spectrometry, ARUP Laboratories, Inc., Salt Lake City, UT, USA.
Metanephrines (metanephrine [MN] and normetanephrine [NMN]) are O-methylated metabolites derived from the catecholamines, epinephrine, and norepinephrine, respectively. High concentrations of metanephrines have been observed in individuals with pheochromocytoma, a neuroendocrine tumor. Measurement of metanephrines in urine is used to screen for the tumor.
View Article and Find Full Text PDFThe predictive value of prostate spherical volume ratio in lower urinary tract symptoms and clinical progression of benign prostatic hyperplasia: a retrospective cohort study.
Int Urol Nephrol
January 2025
Department of Urology, School of Medicine, Shanghai East Hospital, Tongji University, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China.
Purpose: To evaluate the predictive value of Prostate Spherical Volume Ratio for Lower urinary tract symptoms and clinical progression of Benign prostatic hyperplasia. And compared with other prostatic anatomical parameters.
Methods: A total of 154 patients with Benign prostatic hyperplasia who underwent MRI and urodynamics were included in the study, while prostate anatomical parameters such as prostate spherical volume ratio, prostate volume, intravesical prostatic protrusion, prostatic urethral length and presumed circle area ratio were determined based on MRI measurements.
Cardiometabolic Index and Stress Urinary Incontinence in US Women: The Mediating Role of the Triglyceride Glucose Index.
Int Urogynecol J
January 2025
The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.
Background: Stress urinary incontinence (SUI) is a prevalent condition among women, significantly impairing their quality of life. Emerging evidence suggests that metabolic dysfunction may play a role in the development of SUI, although the underlying mechanisms remain unclear. This study aims to examine the association between the cardiometabolic index (CMI), a novel marker of metabolic health, and the risk of SUI in women.
View Article and Find Full Text PDFHorizontal and longitudinal targeted metabolomics in healthy pregnancy and gestational diabetes mellitus.
Acta Diabetol
January 2025
Department of Obstetrics, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Objective: The objective is to investigate the differences in urinary organic acid (OA) profiles and metabolism between healthy control (HC) pregnant women and those with gestational diabetes mellitus (GDM) during the second trimester and third trimester of pregnancy.
Methods: A total of 66 HC pregnant women and 32 pregnant women with GDM were assessed for 107 hydrophilic metabolites in urine samples collected during the second and third trimester of pregnancy using tandem mass spectrometry. The urine OA profiles for each group were obtained, and metabolomic analysis and discussion were conducted.
Apelin-13 inhibits ischemia-reperfusion mediated podocyte apoptosis by reducing m-TOR phosphorylation to enhance autophagy.
FASEB J
January 2025
Department of Urology, Capital Medical University Beijing Chaoyang Hospital, Beijing, China.
Podocytes are essential to maintain the normal filtration function of glomerular basement membrane, which could be injured by ischemia-reperfusion. As complicated function of autophagy in terminal differentiated podocytes, autophagy dysfunction might contribute to I/R induced renal dysfunction following glomerular filtration membrane (GFM) injuries. Meanwhile, apelin-13, an endogenous polypeptide, has been proved to be effective in regulating autophagy and apoptosis in podocytes.
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