<abstract xmlns="http://www.w3.org/1999/xhtml"><sec id="j_1905-7415.0903.410_s_001_w2aab3b7c16b1b6b1aab1c16b1Aa"><h3>Background</h3><p>Patients with urolithiasis usually have increased urinary protein excretion.</p></sec><sec id="j_1905-7415.0903.410_s_002_w2aab3b7c16b1b6b1aab1c16b2Aa"><h3>Objectives</h3><p>To compare the urinary protein, including albumin, excretion by patients with urolithiasis and their children, and identify the urinary proteins that are excreted more than they are by the normal population.</p></sec><sec id="j_1905-7415.0903.410_s_003_w2aab3b7c16b1b6b1aab1c16b3Aa"><h3>Materials and Methods</h3><p>We recruited 28 patients with urolithiasis after stone removal (G1) and their nonstone-forming children (G2), and 30 healthy volunteers who lived in the same region (G3) and their children (G4). Medical history and 24 h urine were analyzed. Total urinary proteins and albumin were measured, and the urine proteome analyzed by two-dimensional SDS–polyacrylamide gel electrophoresis and mass spectrophotometry.</p></sec><sec id="j_1905-7415.0903.410_s_004_w2aab3b7c16b1b6b1aab1c16b4Aa"><h3>Results</h3><p>Age, sex, body mass index, and amount of smoking and alcohol drinking were not different between G1 and G3, or G2 and G4. G1 patients had more prevalent underlying diseases than participants in the other groups. Urinary protein and albumin levels were highest in G1 participants, and were higher in G2 compared with G4. Preliminary proteomics showed elevated urinary Tamm–Horsfall protein, albumin, κ- and λ-2 light chain immunoglobulin excretion.</p></sec><sec id="j_1905-7415.0903.410_s_005_w2aab3b7c16b1b6b1aab1c16b5Aa"><h3>Conclusions</h3><p>Patients with urolithiasis and their children had elevated excretion of urinary protein, including albumin, compared with the normal population, even though the levels were not clinically important. Leakage of these proteins suggest a tubular cell reabsorption defect that might associate with the pathogenesis of stone formation.</p></sec></abstract>

BackgroundPatients with urolithiasis usually have increased urinary protein excretion.ObjectivesTo compare the urinary protein, including albumin, excretion by patients with urolithiasis and their children, and identify the urinary proteins that are excreted more than they are by the normal population.Materials and MethodsWe recruited 28 patients with urolithiasis after stone removal (G1) and their nonstone-forming children (G2), and 30 healthy volunteers who lived in the same region (G3) and their children (G4). Medical history and 24 h urine were analyzed. Total urinary proteins and albumin were measured, and the urine proteome analyzed by two-dimensional SDS–polyacrylamide gel electrophoresis and mass spectrophotometry.ResultsAge, sex, body mass index, and amount of smoking and alcohol drinking were not different between G1 and G3, or G2 and G4. G1 patients had more prevalent underlying diseases than participants in the other groups. Urinary protein and albumin levels were highest in G1 participants, and were higher in G2 compared with G4. Preliminary proteomics showed elevated urinary Tamm–Horsfall protein, albumin, κ- and λ-2 light chain immunoglobulin excretion.ConclusionsPatients with urolithiasis and their children had elevated excretion of urinary protein, including albumin, compared with the normal population, even though the levels were not clinically important. Leakage of these proteins suggest a tubular cell reabsorption defect that might associate with the pathogenesis of stone formation.

Increased protein excretion, including albumin, by children of patients with urolithiasis

Department of Biochemistry, Faculty of Medicine

Division of Urology, Department of Surgery

Asian Biomedicine

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

BackgroundPatients with urolithiasis usually have increased urinary protein excretion.ObjectivesTo compare the urinary protein, including albumin, excretion by...

Increased protein excretion, including albumin, by children of patients with urolithiasis

Article Category: Brief communication (Original)

Publié en ligne: 31 janv. 2017

Pages: 401 - 408

DOI: https://doi.org/10.5372/1905-7415.0903.410

Mots clés
Albumin, family, urinary protein, urine proteome, urolithiasis

© 2015 Thasinas Dissayabutra, Jakkapan Rattanapan, Nuttiya Kalpongnukul, Supawadee Mingmongkol, Wattanachai Ungchareonwattana, Chanchai Boonla, Piyaratana Tosukhowong

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Increased protein excretion, including albumin, by children of patients with urolithiasis

Article Category: Brief communication (Original)

Publié en ligne: 31 janv. 2017

Pages: 401 - 408

DOI: https://doi.org/10.5372/1905-7415.0903.410

Mots clésAlbumin, family, urinary protein, urine proteome, urolithiasis

© 2015 Thasinas Dissayabutra, Jakkapan Rattanapan, Nuttiya Kalpongnukul, Supawadee Mingmongkol, Wattanachai Ungchareonwattana, Chanchai Boonla, Piyaratana Tosukhowong

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Albumin, family, urinary protein, urine proteome, urolithiasis