scholarly journals SERUM 25-HYDROXY VITAMIN D;

2017 ◽  
Vol 24 (03) ◽  
pp. 375-380
Author(s):  
Shazia Memon ◽  
Farzana Shiakh ◽  
Asadullah Makhdoom ◽  
S. M. Tahir
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Vitamin D Deficiency ◽  
Bone Mineral ◽  
Serum Vitamin ◽  
Mineral Density ◽  
Cross Sectional ◽  
Serum Vitamin D ◽  
Low Serum

Deficiency of vitamin D is an emerging issue in children worldwide. It has beenobserved that all patients with vitamin D deficiency does not manifest clinical features or hyperparathyroidresponse. In this study we have evaluated the interaction of serum vitamin D level,parathyroid hormone (PTH) level and bone mineral density (BMD) in children. Objectives: Ourobjectives were to determine the frequency of Vitamin D deficiency in children and association oflow serum D level with serum parathyroid level and bone mineral density (BMD). Study Design:Descriptive cross sectional study. Period: June 2012 to May 2014. Setting: Pediatric and Orthopediatricout-patient departments. Material & Methods: A total of 500 children up to 15 yearswith low serum vitamin D level were enrolled to analyze the interaction of Serum vitamin D, PTHand BMD. Patients were divided in groups on the basis of serum PTH. We have categorize thedeficiency of Vitamin D on the basis of level of 25OHD. It was defined as severe (25OHD ≤ 5ng/ml), moderate (25OHD≤ 10 ng/ml) and mild (25OHD ≤ 20 ng/ml) and hyperparathyroidism(SHPT) was valued if level >65 pg/ml. All children with 25OH ≤ 20 ng/ml were included andassociation with SHPT and BMD were measured. Results: It has been observed that 30–40%of patients with moderate and severe deficiency of vitamin D respectively had shown increasedlevel of PTH. Bone mineral density has demonstrated decline pattern from PTH Quartile 1toQuartile 4 at all sites in children, with only minimal difference (decreasing trend) in serum25OHD levels between these quartiles. The critical level of parathyroid hormone beyond whichBMD going to decline is 35 pg/ml. No demonstrable difference has been observed in BMDwithin each PTH quartile according to categorization of Vitamin D Deficiency. Conclusions:Around 40% of the patients having low serum vitamin D level demonstrated SHPT. Regardingthe BMD levels, it begins to decreases at PTH levels currently well thought-out to be normal.So there is a need to re-define SHPT among different age groups considering the relationshiplinking PTH and BMD. This may also affect guidelines regarding vitamin d supplementation inpatients with vitamin D deficiency.

Bone mineral density and serum vitamin D status in Parkinson's disease: Are the stage and clinical features of the disease important?

2020 ◽  
Vol 68 (2) ◽  
pp. 394 ◽  
Author(s):  
ErhanArif Ozturk ◽  
Ibrahim Gundogdu ◽  
Burak Tonuk ◽  
Ebru Umay ◽  
BilgeGonenli Kocer ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Parkinson’S Disease ◽  
Vitamin D ◽  
Parkinson's Disease ◽  
Clinical Features ◽  
Bone Mineral ◽  
Serum Vitamin ◽  
Vitamin D Status ◽  
Mineral Density ◽  
Serum Vitamin D

Bone mineral density and its influencing factors in children with idiopathic nephrotic syndrome: a prospective observational study

2019 ◽  
Vol 49 (4) ◽  
pp. 292-298
Author(s):  
Indar K Sharawat ◽  
Lesa Dawman ◽  
Merabhai V Kumkhaniya ◽  
Kusum Devpura ◽  
Amarjeet Mehta
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Nephrotic Syndrome ◽  
Bone Mineral ◽  
Idiopathic Nephrotic Syndrome ◽  
Serum Vitamin ◽  
Z Score ◽  
Mineral Density ◽  
Serum Vitamin D ◽  
Vitamin D Levels

Glucocorticoids are first-line therapy for children with idiopathic nephrotic syndrome (INS). These children are at risk of deranged bone metabolism and low bone mineral density (BMD). We studied 60 children with INS and divided them into two groups. Group 1 included 21 children (initial and infrequent relapsing) and group 2 included 39 children (frequent relapsing, steroid dependent and steroid resistant). Dual-energy X-ray absorptiometry of the lumbar spine was performed to assess BMD. Mean BMD Z-score was compared in both groups; this correlated significantly on univariate analysis with cumulative steroid dose, serum vitamin D levels and calcium supplementation. However, on multivariate analysis, serum vitamin D level was the only factor significantly predictive of low z-score.

scholarly journals Cardiorespiratory Fitness is Inversely Associated with Risk of Low Bone Mineral Density in Older Korean Men

2020 ◽  
Vol 17 (21) ◽  
pp. 7907
Author(s):  
Inhwan Lee ◽  
Jeonghyeon Kim ◽  
Hyunsik Kang
Keyword(s):  
Physical Activity ◽  
Bone Mineral Density ◽  
Cardiorespiratory Fitness ◽  
Bone Mineral ◽  
Serum Vitamin ◽  
Cross Sectional Study ◽  
Mineral Density ◽  
Cross Sectional ◽  
Serum Vitamin D ◽  
Age Related

Little is known regarding the association between physical fitness and bone health in older Korean men. This study investigated the relationship between estimated cardiorespiratory fitness (eCRF) and bone mineral density (BMD). This cross-sectional study included 2715 Korean men aged 50 years and older selected from those who participated in the 2008–2011 Korea National Health and Nutritional Examination and Survey. eCRF was obtained using a sex-specific algorithm developed on the basis of age, body mass index, resting heart rate, and physical activity and classified into low, middle, and high categories. Femoral neck BMD was assessed by dual X-ray absorptiometry. Odds ratios (OR) and 95% confidence intervals (CI) for osteopenia, osteoporosis, and low BMD were calculated for eCRF categories in models fully adjusted for age, waist circumference, education, income, smoking, heavy alcohol intake, serum vitamin D, serum parathyroid hormone, and dietary intake of energy, protein, calcium, and vitamins A and C. Overall, eCRF levels were positively associated with BMD and negatively with prevalence of osteopenia, osteoporosis, and low BMD. Logistic regression showed inverse trends in the risks of osteopenia (high vs. low: OR = 0.692; 95% CI, 0.328–0.517; p = 0.049) and low BMD (high vs. low: OR = 0.669; 95% CI, 0.497–0.966; p = 0.029) by eCRF category in models fully adjusted for all the measured covariates. The current findings suggest that maintaining high eCRF via regular physical activity may contribute to attenuation of age-related loss of BMD and decreased risk for low BMD in older Korean men.

scholarly journals Association between 25-Hydroxyvitamin D, Parathyroid Hormone, Vitamin D and Calcium Intake, and Bone Density in Healthy Adult Women: A Cross-Sectional Analysis from the D-SOL Study

Nutrients ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1267 ◽  
Author(s):  
Marcela M. Mendes ◽  
Kathryn H. Hart ◽  
Susan A. Lanham-New ◽  
Patrícia B. Botelho
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Bone Mineral ◽  
Mineral Density ◽  
Cross Sectional ◽  
Bone Parameters ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D ◽  
Sectional Analysis

There is still limited data on the association between 25-hydroxyvitamin D (25(OH)D), parathyroid hormone (PTH), and bone health in healthy younger adults, particularly in Latin America. This cross-sectional analysis aimed to investigate the associations of 25(OH)D and plasma PTH concentrations with bone parameters, and potential confounders, in women living in a high (England) or low (Brazil) latitude country. Bone was assessed by either peripheral quantitative computed tomography (pQCT) (England) or dual-energy x-ray absorptiometry (DXA) scan (Brazil), serum 25(OH)D concentrations by high performance liquid chromatography tandem mass spectrometry (HPLC-MS) and PTH by the chemiluminescent method. In participants living in England, total volumetric bone mineral density (vBMD) was significantly higher in women <29 years compared to ≥30 years, and total and cortical vBMD values at the 66% site were negatively correlated with weight and body mass index (BMI). In participants living in Brazil, age was positively correlated with bone mineral density (BMD) at the femur and bone mineral content (BMC), and weight, BMI, and body fat were correlated with BMD (lumbar spine and femur) and BMC. PTH concentrations were negatively correlated with 25(OH)D concentrations, and the prevalence of secondary hyperparathyroidism was 28.6% (n = 14) in participants with concentrations <25 nmol/L and 12.2% (n = 41) with concentrations between 25 and 49.9 nmol/L, compared to 6.3% (n = 79) in those with concentrations ≥50 nmol/L. In conclusion, weight and BMI were significantly correlated with bone parameters in both groups and age was significantly correlated with BMD at the femoral neck for women living in Brazil only. Although 25(OH)D concentrations were not correlated to bone parameters at any sites, in either country, PTH concentrations showed a significant correlation with total vBMD at the 66% site for women living in England. Secondary hyperparathyroidism was more common amongst those with deficient and insufficient vitamin D status.

scholarly journals STUDY OF BONE MINERAL DENSITY AND SERUM VITAMIN D LEVELS IN HEALTHY POSTMENOPAUSAL WOMEN

2016 ◽  
Vol 3 (64) ◽  
pp. 3515-3519
Author(s):  
Selvapandian Kirubaharan S ◽  
Arshiya Begum ◽  
Priya Anbarasan ◽  
Latha Jeyasubramanian ◽  
Santhi Natesan ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Postmenopausal Women ◽  
Bone Mineral ◽  
Serum Vitamin ◽  
Mineral Density ◽  
Serum Vitamin D ◽  
Vitamin D Levels

scholarly journals Relationship of Focal Erosions, Bone Mineral Density, and Parathyroid Hormone in Rheumatoid Arthritis

2011 ◽  
Vol 38 (6) ◽  
pp. 997-1002 ◽  
Author(s):  
MAURIZIO ROSSINI ◽  
GIANFILIPPO BAGNATO ◽  
BRUNO FREDIANI ◽  
ANNAMARIA IAGNOCCO ◽  
GIOVANNI LA MONTAGNA ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Bone Mineral Density ◽  
Vitamin D ◽  
Parathyroid Hormone ◽  
Bone Mineral ◽  
Mineral Metabolism ◽  
Health Assessment ◽  
Mineral Density ◽  
Cross Sectional ◽  
Bone Erosions

Objective.To investigate the relationship among focal bone erosions and bone mineral density (BMD), 25(OH) vitamin D (25OHD), and parathyroid hormone (PTH) values in patients with rheumatoid arthritis (RA).Methods.The study included 1191 RA patients (1014 women, 177 men, mean age 58.9 ± 11.1 yrs) participating in a multicenter, cross-sectional study.Results.Radiographic evidence of typical bony erosions on hands or forefeet was found in 64.1% of patients. In those with bone erosions as compared to those without, mean BMD Z score values were significantly lower at both the spine (−0.74 ± 1.19 vs −0.46 ± 1.31; p = 0.05) and the hip (−0.72 ± 1.07 vs −0.15 ± 1.23; p < 0.001). In the subgroup of patients not taking vitamin D supplements, PTH levels were significantly higher in those with erosive arthritis (25.9 ± 14.0 vs 23.1 ± 11.6 pg/ml; p = 0.01); whereas the 25OHD concentrations were very similar in the 2 groups. The mean differences for BMD and PTH among the erosive and nonerosive RA remained statistically significant when values were simultaneously adjusted for all disease and mineral metabolism factors (i.e., age, sex, menopause, disease duration, Disease Activity Score 28-joint count, Health Assessment Questionnaire, activities of daily living, Steinbrocker functional state, glucocorticoid therapy, body weight, and bisphosphonate treatment).Conclusion.Our results suggest that the presence of bone erosions in RA correlates with low BMD levels and high PTH levels, and that these associations are independent of the degree of functional impairment and other common determinants of bone mass and mineral metabolism in adults with RA. These findings suggest that treatments to prevent bone loss or suppress PTH levels might positively affect the progression of bone erosions in RA.

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