Homocysteine, Folic Acid, Vitamin B6, Vitamin B12, and Biochemical Parameters of Bone Metabolism in Female Patients with Systemic Lupus Erythematosus
|Kusworini Handono1*, Tita Luthfia Sari2 and Azaria Amelia Adam3|
|1Department of Clinical Pathology, Dr. Saiful Anwar Hospital, Faculty of Medicine Brawijaya University, Malang, Indonesia|
|2Department of Biomedical Science, Faculty of Medicine Brawijaya University, Malang, Indonesia|
|3Department of Nutrition, Faculty of Medicine Brawijaya University, Malang, Indonesia|
|Corresponding Author :||Kusworini Handono
Department of Clinical Pathology
Dr. Saiful Anwar Hospital
Faculty of Medicine Brawijaya University, Malang, Indonesia
E-mail: [email protected]
|Received February 09, 2014; Accepted May 21, 2014; Published May 28, 2014|
|Citation: Handono K, Sari TL, Adam AA (2014) Homocysteine, Folic Acid, Vitamin B6, Vitamin B12, and Biochemical Parameters of Bone Metabolism in Female Patients with Systemic Lupus Erythematosus. J Clin Cell Immunol 5:217. doi: 10.4172/2155-9899.1000217|
|Copyright: © 2014 Handono K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.|
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Objectives: Premature osteoporosis is one of the long term complications of Systemic Lupus Erythematosus (SLE). Recent studies showed that increased level of homocysteine was detected in SLE patients and it was associated with deterioration of bone health. The aim of this study was to determine the association between homocysteine and biochemical parameters of bone metabolism in SLE patients.
Subjects and methods: Thirty-nine female patients who fulfilled American College of Rheumatology 1997 criteria for SLE under 50 years old and twelve healthy female as control group were studied. Various laboratory parameters including serum homocysteine, folic acid, vitamin B6, vitamin B12, bCTx, osteocalcin, MDA, and RANKL were measured.
Results: This study found that significantly higher levels of homocysteine were found in SLE patients (p=0.010). There was also a significantly higher level of MDA and RANKL in SLE patient (p=0.042, p=0.030). Whereas, the folic acid, vitamin B6, vitamin B12, bCTX, and osteocalcin levels were not statistically different between SLE patients and control group. High homocysteine level was significantly associated with increased levels of bCTx (p=0.000, r=0.943), MDA (p=0.002, r=0.731), and RANKL (p=0.000, r=0.758). High level of homocysteine associated with decreased levels of osteocalcin (p=0.000, r=-0.771), folic acid (p=0.000, r=-0.734), vitamin B6 (p=0.046, r=-0.332). But an insignificant relationship was found between serum homocysteine and vitamin B12 (p=0.080, r=-0.284).
Conclusion: Bone diminution in SLE seems to be attributable by homocysteine that influence bone formation and bone resorption process.