mycophenolic-acid and Bone-Diseases--Metabolic

Osteoporosis, osteopenia, and osteonecrosis are common in renal transplant recipients. In this study, we evaluated relationship between bone mineral density (BMD) and posttransplant duration; creatinine clearance; serum levels of glucose, calcium, phosphorus, alkaline phosphatase, vitamin D (vitD), parathormone, magnesium, C telopeptide, osteocalcin, lipids, and vit D therapy. Eighty five subjects included in this study had a mean age of 36.25 ± 10.5 years. At least at 6-month intervals we measured femoral neck (FN) and lumbar vertebra (LV) by DEXA and biochemical parameters. VitD was prescribed in 57 patients (vitDG). The mean duration of posttransplantation follow-up was 9.82 ± 2.72 months. T scores (TS) of FN and LV were normal in 29.4% and 21.2%; osteopenia in 56.5% and 49.4%; and osteoporosis in 12.1% and 29.4% of patients, respectively. Upon follow-up, TS improved significantly from -1.58 to -1.46 in FN and from -1.88 to -1.70 in LV (P < .05 for both). In patients receiving vitDG, TS improved significantly from -1.74 to -1.61 on FN and from -2.16 to -1.97 on LV (P < .05 for both). Osteocalcin and vitDG levels decreased in all patients (P < .05 for all). Blood urea nitrogen and serum creatinine increased (P < .05). In VitDG cohort, triglyceride levels decreased (P < .05) with unchanged blood glucose values; but among the other patients, triglycerides were unchanged but glucose levels had increased (P < .05). Bone disease including osteopenia or osteoporosis was observed among 70%. During the follow-up period, BMD increased significantly from baseline at 9.82 ± 2.72 months. VitD therapy caused more prominent improvements in BMD and decreases in serum triglycerides as well as mutigated the increase in blood glucose.

Topics: Azathioprine; Bone Density; Bone Diseases; Bone Diseases, Metabolic; Creatinine; Female; Humans; Kidney Transplantation; Lipids; Male; Methylprednisolone; Mycophenolic Acid; Osteonecrosis; Osteoporosis; Sirolimus; Vitamin D

Decreased bone mineral density is a common problem after kidney transplantation. Osteoporosis has a major role in morbidity in these patients. We evaluated the incidence of osteoporosis and determined risk factors in 77 patients aged 17 to 50 years who had undergone renal transplantation 6 months to 2 years previously. Bone mineral densitometry was performed using dual-energy x-ray absorptiometry. The incidence of osteoporosis was 26% (20 of 77 patients). Mean (SD) age of affected patients was 34.6 (8.7) years. The most common sites of osteoporosis were the hip (osteoporotic in 19 patients [24.7%] and osteopenic in 42 [54.5%]) and the spine (osteoporotic in 6 patients [7.8%] and osteopenic in 52 [67.5%]). There was a significant relationship between posttransplantation creatinine concentration and hip osteoporosis (P = .01). No relationship was observed between osteoporosis and age, sex, body mass index, duration of hemodialysis therapy, cumulative dosage of any drugs, or use of pulsed methylprednisolone therapy. A hip or spine z score of 1 or less had no relationship to the number of steroid pulse sessions but was significantly related to the total dosage of cyclosporine (P < .001), prednisolone (P < .001), and mycophenolate mofetil (P < .05). A hip z score of less than 1 was related to the posttransplantation period (P = .02). In conclusion, osteoporosis is a frequent complication that requires detection and treatment to reduce morbidity.

Topics: Absorptiometry, Photon; Adolescent; Adult; Bone Density; Bone Diseases, Metabolic; Creatinine; Cyclosporine; Hip Joint; Humans; Immunosuppressive Agents; Incidence; Kidney Transplantation; Lumbar Vertebrae; Middle Aged; Mycophenolic Acid; Osteoporosis; Prednisolone; Risk Factors; Spine; Young Adult

Post-transplantation bone disease is a frequent problem after successful cardiac transplantation. We performed a cross-sectional analysis of male heart transplant recipients in the late post-transplantation period. Nine patients (group A) had received immunosuppressive therapy with cyclosporin A and mycophenolate mofetil (steroid-free treatment), and 12 patients (group B) remained on triple-drug therapy, which included glucocorticosteroids. Bone mineral density status was analyzed by osteodensitometry and by markers of bone turnover. Osteopenia was common in both groups (44.4% in group A and 50% in group B) as was osteoporosis (30% and 33.3% in groups A and B, respectively). beta-CrossLaps were significantly lower in sera of cardiac transplant recipients on double immunosuppressive (i.e., glucocorticosteroid-free) regimen than in sera of patients on triple-drug therapy (428.3+/-109.4 vs 661.7+/-337.0 pg/ml, P<0.05). Lower serum beta-CrossLaps levels in patients undergoing glucocorticosteroid-free treatment may indicate a lower risk of bone deterioration in the long term.

Topics: Bone Density; Bone Diseases, Metabolic; Collagen; Cross-Sectional Studies; Cyclosporine; Drug Therapy, Combination; Heart Transplantation; Humans; Immunosuppressive Agents; Male; Middle Aged; Mycophenolic Acid; Osteoporosis; Peptide Fragments; Prednisolone; Retrospective Studies