Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant Patients
Background. Chronic kidney disease (CKD) related mineral bone disorders persist after kidney transplantation, but little is known about the relationship between fibroblast growth factor-23 (FGF-23) and mineral metabolism in prevalent post-transplant patients. Objectives. To examine mineral metabolis...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
|
| Series: | International Journal of Nephrology |
| Online Access: | http://dx.doi.org/10.1155/2012/490623 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832552889400164352 |
|---|---|
| author | Madhumathi Rao Priyanka Jain Temitope Ojo Gautam Surya Vaidyanathapuram Balakrishnan |
| author_facet | Madhumathi Rao Priyanka Jain Temitope Ojo Gautam Surya Vaidyanathapuram Balakrishnan |
| author_sort | Madhumathi Rao |
| collection | DOAJ |
| description | Background. Chronic kidney disease (CKD) related mineral bone disorders persist after kidney transplantation, but little is known about the relationship between fibroblast growth factor-23 (FGF-23) and mineral metabolism in prevalent post-transplant patients. Objectives. To examine mineral metabolism parameters and their relationship to FGF-23 and parathyroid hormone (PTH) in prevalent kidney transplant patients. Methods. Cross-sectional study of 106 kidney transplant patients enrolled November 2005–October 2009 at Tufts Medical Center (TMC), Boston. Results. The prevalence of hypophosphatemia was 34%, hypercalcemia 3%, and elevated PTH levels 66%, at a median (25th–75th percentile) duration of 12.8 (7.5–30.9) months post-transplant. Males had significantly higher levels of PTH (P=0.04) and lower levels of serum phosphate
(P=0.002). Serum PTH levels did not relate to eGFR, corrected calcium levels or serum phosphate. FGF-23 levels were above the reference limits in 7% of patients; higher levels were associated with higher serum phosphate and PTH levels after adjustment for transplant kidney function. Conclusion. FGF-23 is an important driver of mineral metabolism in prevalent transplant patients. Its modulatory role in mineral metabolism homeostasis may be heightened as feedback suppression of PTH is disturbed. Its role in long term cardiovascular and graft outcomes needs further study. |
| format | Article |
| id | doaj-art-fd548e4ba71a46b5ac5a5a5bfd5b4841 |
| institution | Kabale University |
| issn | 2090-214X 2090-2158 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Nephrology |
| spelling | doaj-art-fd548e4ba71a46b5ac5a5a5bfd5b48412025-02-03T05:57:39ZengWileyInternational Journal of Nephrology2090-214X2090-21582012-01-01201210.1155/2012/490623490623Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant PatientsMadhumathi Rao0Priyanka Jain1Temitope Ojo2Gautam Surya3Vaidyanathapuram Balakrishnan4Division of Nephrology, Tufts Medical Center, P.O. Box 391, 800 Washington Street, Boston, MA 02111, USADivision of Nephrology, Tufts Medical Center, P.O. Box 391, 800 Washington Street, Boston, MA 02111, USADivision of Nephrology, Tufts Medical Center, P.O. Box 391, 800 Washington Street, Boston, MA 02111, USADivision of Nephrology, Tufts Medical Center, P.O. Box 391, 800 Washington Street, Boston, MA 02111, USADivision of Nephrology, Tufts Medical Center, P.O. Box 391, 800 Washington Street, Boston, MA 02111, USABackground. Chronic kidney disease (CKD) related mineral bone disorders persist after kidney transplantation, but little is known about the relationship between fibroblast growth factor-23 (FGF-23) and mineral metabolism in prevalent post-transplant patients. Objectives. To examine mineral metabolism parameters and their relationship to FGF-23 and parathyroid hormone (PTH) in prevalent kidney transplant patients. Methods. Cross-sectional study of 106 kidney transplant patients enrolled November 2005–October 2009 at Tufts Medical Center (TMC), Boston. Results. The prevalence of hypophosphatemia was 34%, hypercalcemia 3%, and elevated PTH levels 66%, at a median (25th–75th percentile) duration of 12.8 (7.5–30.9) months post-transplant. Males had significantly higher levels of PTH (P=0.04) and lower levels of serum phosphate (P=0.002). Serum PTH levels did not relate to eGFR, corrected calcium levels or serum phosphate. FGF-23 levels were above the reference limits in 7% of patients; higher levels were associated with higher serum phosphate and PTH levels after adjustment for transplant kidney function. Conclusion. FGF-23 is an important driver of mineral metabolism in prevalent transplant patients. Its modulatory role in mineral metabolism homeostasis may be heightened as feedback suppression of PTH is disturbed. Its role in long term cardiovascular and graft outcomes needs further study.http://dx.doi.org/10.1155/2012/490623 |
| spellingShingle | Madhumathi Rao Priyanka Jain Temitope Ojo Gautam Surya Vaidyanathapuram Balakrishnan Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant Patients International Journal of Nephrology |
| title | Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant Patients |
| title_full | Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant Patients |
| title_fullStr | Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant Patients |
| title_full_unstemmed | Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant Patients |
| title_short | Fibroblast Growth Factor and Mineral Metabolism Parameters among Prevalent Kidney Transplant Patients |
| title_sort | fibroblast growth factor and mineral metabolism parameters among prevalent kidney transplant patients |
| url | http://dx.doi.org/10.1155/2012/490623 |
| work_keys_str_mv | AT madhumathirao fibroblastgrowthfactorandmineralmetabolismparametersamongprevalentkidneytransplantpatients AT priyankajain fibroblastgrowthfactorandmineralmetabolismparametersamongprevalentkidneytransplantpatients AT temitopeojo fibroblastgrowthfactorandmineralmetabolismparametersamongprevalentkidneytransplantpatients AT gautamsurya fibroblastgrowthfactorandmineralmetabolismparametersamongprevalentkidneytransplantpatients AT vaidyanathapurambalakrishnan fibroblastgrowthfactorandmineralmetabolismparametersamongprevalentkidneytransplantpatients |