| Characterization of recumbent, ambulatory, and postexercise proteinuria in the adolescent. | |
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MedLine Citation:
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PMID: 3588079 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To better characterize the effects of body position and exercise on urinary protein excretion, carefully defined random urine samples were obtained during recumbency and following both ambulation and exercise in healthy adolescent student athletes. Albumin, lysozyme, and N-acetyl-B-D-glucosaminidase were measured in all samples. Glomerular permeability and tubular function were assessed using the urinary albumin creatinine ratio (UAlb/UCr), the urinary lysozyme creatinine ratio (ULy/UCr), the urinary N-acetyl-B-D-glucosaminidase creatinine ratio (UNag/UCr), and the urinary lysozyme albumin ratio (ULy/UAlb). UAlb/UCr was significantly (p less than 0.001) lower in recumbent urine samples than in either ambulatory or postexercise samples, although no difference was seen between the latter two groups. Furthermore, recumbent UAlb/UCr was higher in females (p less than 0.01) and postexercise UAlb/UCr varied significantly (p less than 0.001), depending on the type of physical activity. ULy/UCr, UNag/UCr, and ULy/UAlb were unaffected by either posture or physical activity. A significant correlation was found between UAlb/UCr and UNag/UCr (r = 0.60, p = 0.0001) and also between ULy/UCr and ULy/UAlb (r = 0.84, p = 0.001). In addition, urine-specific gravity was found to have a significant negative correlation with UAlb/UCr (r = -0.33, p = 0.001). The results of this study suggest that in the adolescent, recumbent albumin excretion is higher in females and that ambulation increases glomerular permeability. Exercise does not appear to induce any additional alteration in glomerular permeability, although the effects of exercise are likely-related to the type and severity of physical activity. Renal tubular function is unaltered by either ambulation or exercise.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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M T Houser |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pediatric research Volume: 21 ISSN: 0031-3998 ISO Abbreviation: Pediatr. Res. Publication Date: 1987 May |
Date Detail:
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Created Date: 1987-07-20 Completed Date: 1987-07-20 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0100714 Medline TA: Pediatr Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 442-6 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acetylglucosaminidase
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urine Adolescent Albuminuria / etiology Female Humans Male Muramidase / urine Physical Exertion Posture Proteinuria / etiology*, urine |
| Chemical | |
Reg. No./Substance:
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EC 3.2.1.17/Muramidase; EC 3.2.1.52/Acetylglucosaminidase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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