Screening for Vitamin D Deficiency in Black Americans: Comparison of Total, Free, Bioavailable 25 Hydroxy Vitamin D Levels with Parathyroid Hormone Levels and Bone Mineral Density

2018 ◽  
Vol 22 (9) ◽  
pp. 1045-1050 ◽  
Author(s):  
Alexis McKee ◽  
S. M. Lima Ribeiro ◽  
T. K. Malmstrom ◽  
H. M. Perry ◽  
D. K. Miller ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Vitamin D Deficiency ◽  
Bone Mineral ◽  
Black Americans ◽  
Mineral Density ◽  
Hormone Levels ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D

scholarly journals Evaluation of Vitamin D-levels and Bone Mineral Density in Lymphoma and Solid Tumors of Childhood after Treatment

2021 ◽  
Vol 7 (2) ◽  
pp. 174
Author(s):  
Ozge Artan ◽  
Suna Emir
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Solid Tumors ◽  
Bone Mineral ◽  
Bone Mineralization ◽  
Mineral Density ◽  
Factors Affecting ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D

As the survival rate of childhood cancers increases, late effects of the treatment are becoming significantly more critical. The aim of this study is to evaluate serum 25 Hydroxy Vitamin D levels and bone mineral density (BMD) of patients with lymphoma and solid tumors. In this study, we included patients diagnosed with cancer in our pediatric oncology department between 2004 and 2013. These patients were all in remission and completed their treatment. Patient data were collected from corresponding medical files. Vitamin D levels, BMD measurements and other laboratory tests were performed prospectively. The study group consisted of 105 patients who completed treatment at least one year ago. Overall, 59.6 % of the subjects were found to have vitamin D levels less than 20 ng/mL. When the factors affecting vitamin D deficiency were evaluated, there were not any factor related to vitamin D deficiency. However, a positive correlation was observed in the blood sampling time, namely test results taken in summer months (April-September) were higher. In our study, bone mineralization disorder (low BMD) was found in 44.4% of the patients. In addition, we observed that bone health was significantly affected in children who recovered from cancer. 59.6 % of the vitamin D deficiency rate was found to be higher than the similar age group in our country. To our knowledge, this is also the lowest vitamin D levels in children with cancer compared to previously published studies. The rate of low BMD was determined as 44.4%, similar to earlier studies.

scholarly journals P114 Effect of vitamin D on parathyroid hormone, serum calcium and bone mineral density in patients with primary hyperparathyroidism being managed conservatively

Rheumatology ◽  
2021 ◽  
Vol 60 (Supplement_1) ◽  
Author(s):  
Mahrukh Khalid ◽  
Vismay Deshani ◽  
Khalid Jadoon
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Primary Hyperparathyroidism ◽  
Bone Mineral ◽  
Serum Calcium ◽  
Mineral Density ◽  
Neck Of Femur ◽  
Vitamin D Levels ◽  
Significant Difference

Abstract Background/Aims  Vitamin D deficiency is associated with more severe presentation of primary hyperparathyroidism (PTHP) with high parathyroid hormone (PTH) levels and reduced bone mineral density (BMD). We analyzed data to determine if vitamin D levels had any impact on PTH, serum calcium and BMD at diagnosis and 3 years, in patients being managed conservatively. Methods  Retrospective analysis of patients presenting with PHPT. Based on vitamin D level at diagnosis, patients were divided into two groups; vitamin D sufficient (≥ 50 nmol/L) and vitamin D insufficient (≤ 50 nmol/L). The two groups were compared for age, serum calcium and PTH levels at diagnosis and after mean follow up of 3 years. BMD at forearm and neck of femur (NOF) was only analyzed in the two groups at diagnosis, due to lack of 3 year’s data. Results  There were a total of 93 patients, 17 males, mean age 70; range 38-90. Mean vitamin D level was 73.39 nmol/L in sufficient group (n = 42) and 34.48 nmol/L in insufficient group (n = 40), (difference between means -38.91, 95% confidence interval -45.49 to -32.33, p < 0.0001). There was no significant difference in age, serum calcium and PTH at the time of diagnosis. After three years, there was no significant difference in vitamin D levels between the two groups (mean vitamin D 72.17 nmol/L in sufficient group and 61.48 nmol/L in insufficient group). Despite rise in vitamin D level in insufficient group, no significant change was observed in this group in PTH and serum calcium levels. BMD was lower at both sites in vitamin D sufficient group and difference was statistically significant at NOF. Data were analyzed using unpaired t test and presented as mean ± SEM. Conclusion  50% of patients presenting with PHPT were vitamin D insufficient at diagnosis. Vitamin D was adequately replaced so that at 3 years there was no significant difference in vitamin D status in the two groups. Serum calcium and PTH were no different in the two groups at diagnosis and at three years, despite rise in vitamin D levels in the insufficient group. Interestingly, BMD was lower at forearm and neck of femur in those with sufficient vitamin D levels and the difference was statistically significant at neck of femur. Our data show that vitamin D insufficiency does not have any significant impact on PTH and calcium levels and that vitamin D replacement is safe in PHPT and does not impact serum calcium and PTH levels in the short term. Lower BMD in those with adequate vitamin D levels is difficult to explain and needs further research. Disclosure  M. Khalid: None. V. Deshani: None. K. Jadoon: None.

Relationship between vitamin D status, parathyroid hormone levels and bone mineral density in patients with chronic kidney disease stages 3 and 4

Nephrology ◽  
2007 ◽  
Vol 0 (0) ◽  
pp. 070918212946008-??? ◽  
Author(s):  
ARISTEIDIS STAVROULOPOULOS ◽  
CHRISTINE J PORTER ◽  
SIMON D ROE ◽  
DAVID J HOSKING ◽  
MICHAEL JD CASSIDY
Keyword(s):  
Bone Mineral Density ◽  
Chronic Kidney Disease ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Kidney Disease ◽  
Bone Mineral ◽  
Vitamin D Status ◽  
Mineral Density ◽  
Hormone Levels ◽  
Disease Stages

25-hydroxy vitamin D levels in healthy premenopausal women: Association with bone turnover markers and bone mineral density

Bone ◽  
2009 ◽  
Vol 45 (3) ◽  
pp. 423-426 ◽  
Author(s):  
Silvano Adami ◽  
Francesco Bertoldo ◽  
Vania Braga ◽  
Elena Fracassi ◽  
Davide Gatti ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Bone Turnover ◽  
Bone Mineral ◽  
Bone Turnover Markers ◽  
Premenopausal Women ◽  
Mineral Density ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D ◽  
Turnover Markers

scholarly journals Calcium and vitamin D supplementation in children with frequently relapsing and steroid-dependent nephrotic syndrome

2012 ◽  
Vol 52 (1) ◽  
pp. 16
Author(s):  
Ayi Dilla Septarini ◽  
Taralan Tambunan ◽  
Pustika Amalia
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Bone Mineral ◽  
Vitamin D Supplementation ◽  
Ionized Calcium ◽  
Mineral Density ◽  
Vitamin D Levels ◽  
Before And After ◽  
25 Hydroxy Vitamin D ◽  
Serum Ionized Calcium

Background Children with frequently relapsing and steroiddependentnephrotic syndrome (FRNS/SDNS) are at riskfor osteoporosis due to impaired metabolism of calcium andvitamin D.Objective To determine the effect of calcium and vitamin Dsupplementation on bone mineral density, serum ionized calciumlevels and serum 25-hydroxy-vitamin D levels in children withFRNS and SDNS.Methods A clinical trial with a before and after design wasperformed. Subjects were SDNS or FRNS pediatric patients 2: 5years of age. Subjects received 800 mg elemental calcium and 400IU vitamin D supplementation for 8 weeks. Serum ionized calcium,serum 25-hydroxy-vitamin D [25(0H)D], and bone mineral density(BMD) were determined before and after the supplementation.Results Of the 30 subjects, 28 completed the study. However,only 20 subjects underwent BMD determination before and aftersupplementation. Of the 28 subjects, 22 had hypocalcemia and 26had low vitamin D levels. Osteopenia was found in 14/20 subjects andosteoporosis was in 2/20 subjects. After 8 weeks of supplementation,mean serum ionized calcium increased from low [1.15 mmol/L (SDO.oJ)] to normal [1.18 mmol/L (SD 0.04)] (P< 0.001) levels, butmean serum 25(0H)D only increased from vitamin D deficiencycategory [20 ng/mL (SD 7 .7)] to vitamin D insufficiency category[25.5 ng/mL (7.7)] (P=0.010). Mean z-score BMD increased from-1.1 (SD 0.9) to -0.7 (SD 0.2) after supplementation (P<0.001).Conclusion Calcium vitamin D supplementation effectively increasedserum ionized calcium, serum 25 (OH)D, and BMD in subjectswith FRNS and SDNS. [Paediatr lndones. 2012;52:16-21].

Juvenile lupus and serum vitamin D levels: A cross-sectional study

Lupus ◽  
2020 ◽  
Vol 29 (13) ◽  
pp. 1752-1758
Author(s):  
Samar abd Alhamed Tabra ◽  
Hend Hassan Abdelnabi ◽  
Nivine Fathi Mahmoud Darwish ◽  
Amal Mohammed El-Barbary ◽  
Muhammad Tarek AbdelGhafar ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Disease Activity ◽  
Vitamin D Deficiency ◽  
Bone Mineral ◽  
Healthy Children ◽  
Z Score ◽  
Mineral Density ◽  
Vitamin D Levels ◽  
Significant Difference

Background Juvenile systemic lupus erythematosus (JSLE) is usually associated with vitamin D deficiency and low bone mineral density. Objectives To evaluate serum levels of 25-OH vitamin D in JSLE patients and to correlate these findings with disease activity and bone density. Methods This study was conducted on 100 patients with JSLE and 100 healthy children as controls. Disease duration and SLEDAI for disease activity were evaluated. CBC, anti-dsDNA, C3,C4,24hr urinary proteins, creatinine, estimated glomerular filtration rate(e-GFR),Ca,P,PTH, 25 (OH) D levels, and bone mineral density(BMD)Z score were measured. Results There were significant differences in mean 25(OH)D concentration between patients group (19.37 ± 9.72 ng/ml) and controls 35.90 ± 9.66 ng/ml(p < 0.05), with significant difference between active and inactive patients (p < 0.05).There were significant negative correlations between serum 25(OH)D and SLEDAI (r-0.545, p 0.001), steroid dose (r-0.561, p 0.001), anti-dsDNA (r-0.685, p 0.006), 24 hr-proteinuria (r-0.738, p 0.001) and PTH (r-0.335, p 0.001), significant positive correlations between 25(OH)D and C3 (r0.617, p 0.001),C4 (r0.544, p 0.001) serum Ca (r0.424, p 0.001) and Z score (r0.561, p 0.001),with non-significant correlations between 25(OH)D and serum P and both disease & steroid duration, (p > 0.05). Conclusion Vitamin D deficiency is common in JSLE, it’s correlated significantly with disease activity and bone mineral density.

scholarly journals Vitamin D, parathyroid hormone levels and bone mineral density in community-dwelling older women: The Rancho Bernardo Study

2005 ◽  
Vol 16 (12) ◽  
pp. 1721-1726 ◽  
Author(s):  
Denise G. von Mühlen ◽  
Gail A. Greendale ◽  
Cedric F. Garland ◽  
Lori Wan ◽  
Elizabeth Barrett-Connor
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Older Women ◽  
Bone Mineral ◽  
Community Dwelling ◽  
Mineral Density ◽  
Hormone Levels
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