PMID- 15049796 OWN - NLM STAT- MEDLINE DCOM- 20040706 LR - 20131121 IS - 1397-3142 (Print) IS - 1397-3142 (Linking) VI - 8 IP - 2 DP - 2004 Apr TI - Hyperhomocysteinemia in pediatric and young adult renal transplant recipients. PG - 161-6 AB - Hyperhomocysteinemia (HHcy) has been recently identified as an important and reversible cardiovascular risk factor in adult and pediatric renal transplant recipients. A retrospective cross-sectional analysis of 70 pediatric and young adult renal transplant recipients was performed to determine the prevalence, and important clinical and laboratory correlates of HHcy. Total homocysteine concentration, free and protein bound, was determined by fluorescence polarization immunoassay using an IMX analyzer. Hyperhomocysteinemia was defined as a serum homocysteine (Hcy) level above the 95th percentile for age. Fifty-four of 70 patients (77%) had HHcy. Comparison of patients with HHcy with patients without HHcy demonstrated no statistical difference in age (p = 0.35), gender (p = 0.76) or donor type (p = 0.20). Patients with HHcy had significantly lower calculated creatinine clearance values (Ccr) (p = 0.02), 67.3 +/- 21.2 mL/min/1.73 m(2) vs. 90.7 +/- 32.3 mL/min/1.73 m(2) for patients without HHcy. Immunosuppression did not correlate with the diagnosis of HHcy. Stepwise logistic regression identified patient age (0.18, p = 0.013) and Ccr (-0.04, p = 0.011) as significant variables. In conclusion, HHcy is more common than expected in pediatric renal transplant recipients. Patients with Ccr <80 mL/min/1.73 m(2) were statistically more likely to have a diagnosis of HHcy. We recommend that Hcy levels should be evaluated in this high risk population. FAU - Belson, Amir AU - Belson A AD - Section of Pediatric Nephrology, Department of Pediatrics, Lucile Salter Packard Children's Hospital, Stanford University, CA 94304, USA. abelson@stanford.edu FAU - Sanchez, Jaime AU - Sanchez J FAU - Alexander, Steven R AU - Alexander SR FAU - Salvatierra, Oscar AU - Salvatierra O FAU - Dar, Mor H AU - Dar MH FAU - Reif, Shimon AU - Reif S FAU - Yorgin, Peter D AU - Yorgin PD LA - eng PT - Comparative Study PT - Journal Article PL - Denmark TA - Pediatr Transplant JT - Pediatric transplantation JID - 9802574 RN - 0 (Immunosuppressive Agents) RN - 0LVT1QZ0BA (Homocysteine) RN - AYI8EX34EU (Creatinine) SB - IM MH - Adolescent MH - Adult MH - Age Factors MH - Child MH - Child, Preschool MH - Creatinine/metabolism MH - Cross-Sectional Studies MH - Female MH - Fluorescence Polarization Immunoassay/instrumentation MH - Homocysteine/blood MH - Humans MH - Hyperhomocysteinemia/*etiology MH - Immunosuppressive Agents/classification/therapeutic use MH - *Kidney Transplantation/adverse effects MH - Logistic Models MH - Male MH - Retrospective Studies MH - Risk Factors MH - Sex Factors MH - Tissue Donors EDAT- 2004/03/31 05:00 MHDA- 2004/07/09 05:00 CRDT- 2004/03/31 05:00 PHST- 2004/03/31 05:00 [pubmed] PHST- 2004/07/09 05:00 [medline] PHST- 2004/03/31 05:00 [entrez] AID - PTR144 [pii] AID - 10.1046/j.1399-3046.2003.00144.x [doi] PST - ppublish SO - Pediatr Transplant. 2004 Apr;8(2):161-6. doi: 10.1046/j.1399-3046.2003.00144.x.