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parathyroid hormone

Prevalence and Predictors of Vitamin D Insufficiency in Adolescents Living at an Intermediate Altitude

Vitamin D insufficiency in adolescents living at an intermediate altitude; and optimal serum 25(OH) vitamin D levels in relation to serum PTH levels was evaluated. In spring, vitamin D deficiency was detected in 17.7 % and vitamin D insufficiency was detected in 72 % of subjects. At the end of summer these rates were 1.6 % and 41.1 % respectively. Serum 25(OH)vitamin D levels at which plasma PTH concentrations begin to form a plateau is 22 ng/mL.


Although vitamin D insufficiency is very common health problem in the world, its prevalence and predictors in adolescents are controversial. We planned to evaluate prevalenve and predictors of vitamin D insufficiency in adolescents living at an intermediate altitude. We also want to give optimal serum 25(OH) vitamin D levels in relation to serum PTH levels. 

13 Feb, 2015
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e-Published: 15 Oct, 2015


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The Importance of Bone Biomarkers in the Diagnosis of Renal Osteodystrophy

A combination of serum biochemical markers might predict underlying renal osteodystrophy better than would individual biochemical markers. A predictive model using bone histology and biochemical markers can be developed in the future.


Objective: To evaluate the association of serum biochemical markers in patients with chronic kidney disease (CKD) in Jamaica for early detection of renal osteodystrophy (ROD).

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e-Published: 07 Oct, 2013
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