PMID- 21107986 OWN - NLM STAT- MEDLINE DCOM- 20110420 LR - 20211020 IS - 1432-198X (Electronic) IS - 0931-041X (Linking) VI - 26 IP - 2 DP - 2011 Feb TI - Urinary transforming growth factor beta-1 as a marker of renal dysfunction in sickle cell disease. PG - 275-80 LID - 10.1007/s00467-010-1677-9 [doi] AB - Renal dysfunction affects 5-18% of patients with sickle cell disease (SCD). To date, no studies have described urinary levels of transforming growth factor beta-1 (TGF-beta1), a marker of fibrosis, and neutrophil gelatinase-associated lipocalin (NGAL), a marker of acute/chronic kidney disease, as biomarkers in identifying patients at risk of developing renal disease in SCD. We hypothesized that SCD subjects will have increased urinary excretion of TGF-beta1 and NGAL compared with healthy controls (CTR). We examined 51 SCD subjects: 42 HbSS, 8 HbSC, and 1 HbSD. Sixteen out of 42 patients with HbSS were on hydroxyurea (HU). Urinary excretion of TGF-beta1 was 26.4 +/- 1.5 pg/mgCr in SCD subjects vs 15.0 +/- 2.4 pg/mgCr in CTR (p<0.00001). SCD patients with hemoglobin < 9 g/dl had higher urinary TGF-beta1 than patients with milder anemia (p=0.002). Urinary TGF-beta1 trended lower in HbSS patients treated with HU (23.61 +/- 2.6 pg/mgCr), vs patients not on HU (27.69 +/- 1.8 pg/mgCr; p=0.055). There was no correlation between urinary TGF-beta1 and microalbuminuria or estimated glomerular function. There was no difference in urinary NGAL in SCD patients vs CTR. We suggest that urinary TGF-beta1 may serve as a marker of early renal injury in SCD. FAU - Mohtat, Davoud AU - Mohtat D AD - Department of Pediatric Nephrology, Albert Einstein College of Medicine, Children's Hospital at Montefiore, 111 East 210th Street, Bronx, NY 10467, USA. FAU - Thomas, Rosemary AU - Thomas R FAU - Du, Zangfang AU - Du Z FAU - Boakye, Yaa AU - Boakye Y FAU - Moulton, Thomas AU - Moulton T FAU - Driscoll, Catherine AU - Driscoll C FAU - Woroniecki, Robert AU - Woroniecki R LA - eng GR - DK007110-34/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20101125 PL - Germany TA - Pediatr Nephrol JT - Pediatric nephrology (Berlin, Germany) JID - 8708728 RN - 0 (Acute-Phase Proteins) RN - 0 (Biomarkers) RN - 0 (LCN2 protein, human) RN - 0 (Lipocalin-2) RN - 0 (Lipocalins) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Transforming Growth Factor beta) SB - IM MH - Acute-Phase Proteins/*urine MH - Adolescent MH - Age Factors MH - Albuminuria/metabolism MH - Anemia, Sickle Cell/*complications MH - Biomarkers/urine MH - Child MH - Child, Preschool MH - Female MH - Glomerular Filtration Rate MH - Humans MH - Kidney Diseases/*diagnosis/etiology/*urine MH - Lipocalin-2 MH - Lipocalins/*urine MH - Male MH - Proto-Oncogene Proteins/*urine MH - Transforming Growth Factor beta/*urine MH - Young Adult EDAT- 2010/11/26 06:00 MHDA- 2011/04/22 06:00 CRDT- 2010/11/26 06:00 PHST- 2010/06/28 00:00 [received] PHST- 2010/09/17 00:00 [accepted] PHST- 2010/09/14 00:00 [revised] PHST- 2010/11/26 06:00 [entrez] PHST- 2010/11/26 06:00 [pubmed] PHST- 2011/04/22 06:00 [medline] AID - 10.1007/s00467-010-1677-9 [doi] PST - ppublish SO - Pediatr Nephrol. 2011 Feb;26(2):275-80. doi: 10.1007/s00467-010-1677-9. Epub 2010 Nov 25.