Are Changes In 25(OH) Vitamin D Levels And Changes In Insulin Secretion Mediated By Changes In Visceral Adiposity? Results From A Lifestyle Intervention Study In Viscerally Obese Men*

Abstract Objective: To compare the efficacy of daily versus low dose depot oral vitamin D3 for treating nutritional rickets. Design: Randomized Controlled Trial Setting: Paediatrics department of a tertiary care hospital catering to semi-urban and rural population in Delhi, India Methods: We randomized 66 children aged 3 months to 5 years with nutritional rickets to receive either daily oral vitamin D3 drops (3-12 months: 2000 IU; >12 months-5y: 4000 IU; n=33) for 12 weeks duration, or a single oral depot dose of vitamin D3 granules (3-12 months: 60,000 IU; >12 months-5y: 150,000 IU; n=33). Results: Participants in both groups had comparable demographic characteristics, laboratory features and radiological severity of rickets. 33 participants in each group received the assigned intervention and all were followed up till 12 weeks. At 12 weeks follow up, children in both groups showed a significant improvement in all biochemical parameters [serum calcium, phosphorus, alkaline phosphatase, parathormone and 25(OH) vitamin D levels] as well as radiological healing. At 12 weeks, the mean (SD) serum 25(OH) vitamin D levels (nmol/L) were statistically comparable in both groups [daily: 120.2 (83.2), depot: 108 (74), P=0.43] and 31 (94%) children in each group had radiological healing (Thacher score <1.5). Two children in each group persisted to have raised alkaline phosphatase and one child each in the daily group continued to have hypocalcemia and hypophosphatemia at 12 weeks. Conclusion: Low dose oral depot vitamin D3 is an effective alternative to daily oral vitamin D3 for nutritional rickets.

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No correlation was observed between vitamin D levels and disability of patients with multiple sclerosis between latitudes 18° and 30° South

Arquivos de Neuro-Psiquiatria ◽

10.1590/0004-282x20160173 ◽

2017 ◽

Vol 75 (1) ◽

pp. 3-8 ◽

Cited By ~ 4

Author(s):

Yara Dadalti Fragoso ◽

Tarso Adoni ◽

Soniza Vieira Alves-Leon ◽

Samira L. Apostolos-Pereira ◽

Walter Oleschko Arruda ◽

...

Keyword(s):

Multiple Sclerosis ◽

Vitamin D ◽

Large Population ◽

Serum Vitamin ◽

Serum Levels ◽

Serum Vitamin D ◽

Control Subjects ◽

Vitamin D Levels ◽

The Mean ◽

25 Oh Vitamin D

ABSTRACT Objective: Vitamin D has taken center stage in research and treatment of multiple sclerosis (MS). The objective of the present study was to assess the serum vitamin D levels of a large population of patients with MS and controls living in a restricted tropical area. Methods: Data from 535 patients with MS and 350 control subjects were obtained from 14 cities around the Tropic of Capricorn. Results: The mean serum 25-OH vitamin D level was 26.07 ± 10.27 ng/mL for the control subjects, and 28.03 ± 12.19 ng/mL for patients with MS. No correlation was observed between vitamin D levels and the disability of patients over the disease duration. Conclusion: At least for the region around the Tropic of Capricorn, serum levels of vitamin D typically are within the range of 20 to 30 ng/mL for controls and patients with MS.

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Validation of a locally derived serum calcium adjustment equation: relationship with total 25(OH) vitamin D and PTH levels

Journal of Clinical Pathology ◽

10.1136/jclinpath-2016-203663 ◽

2016 ◽

Vol 70 (1) ◽

pp. 69-74 ◽

Cited By ~ 1

Author(s):

Jonathan Joseph Scargill ◽

John Mark Guy

Keyword(s):

Vitamin D ◽

Fold Increase ◽

Reference Interval ◽

Albumin Concentration ◽

Vitamin D Levels ◽

Significant Difference ◽

25 Oh Vitamin D ◽

New Equation ◽

The Uk ◽

Adjustment Equation

AimsMany clinical laboratories in the UK use a standard equation to adjust total calcium for albumin concentration. To assess the validity of this practice, we assessed the effect of the use of a traditional and locally derived calcium adjustment equation on parathyroid hormone (PTH) and 25(OH, hydroxy) vitamin D levels.MethodsSamples requested for calcium and albumin measurement over a 6 month period that met inclusion criteria were used to derive a calcium adjustment equation (n=60 941). The traditional and locally derived calcium adjustment equations were then applied to a second cohort of adult patients that underwent calcium measurement over a 1 year period (n=275 456). Patients were classified as hypocalcaemic, normocalcaemic or hypercalcaemic using a UK Pathology Harmony adjusted calcium reference interval (2.2–2.6 mmol/L).ResultsThe local calcium adjustment equation provided a 7.1-fold reduction in the prevalence of hypocalcaemia. Patients classified as hypocalcaemic using the locally derived equation had statistically significantly lower 25(OH) vitamin D and higher PTH levels. A 2.4-fold increase in the prevalence of hypercalcaemia was also observed using the new equation, but with no significant difference in 25(OH) vitamin D or PTH levels.ConclusionsA locally derived calcium adjustment equation reclassified the calcium status of 61 278 (22%) patients. Patients classified as hypocalcaemic by the locally derived equation had significantly lower 25(OH) vitamin D and significantly higher PTH values, providing evidence that use of this adjustment equation generates adjusted calcium results of greater clinical relevance. This study provides further and novel evidence that individual laboratories should determine local equations for adjusted calcium where possible.

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Abstract 121: Vitamin D Deficiency Study in Postural Orthostatic Tachycardia Syndrome

Circulation Cardiovascular Quality and Outcomes ◽

10.1161/circoutcomes.8.suppl_2.121 ◽

2015 ◽

Vol 8 (suppl_2) ◽

Author(s):

Chandralekha Ashangari ◽

Amer Suleman

Keyword(s):

Vitamin D ◽

Vitamin D Deficiency ◽

Electronic Medical Records ◽

Vitamin D3 ◽

Medical Records ◽

Postural Orthostatic Tachycardia Syndrome ◽

Vitamin D Levels ◽

The World ◽

25 Oh Vitamin D ◽

Vitamin D3 Deficiency

Objectives The aim of this study is to assess vitamin D levels, including the prevalence of vitamin D deficiency/insufficiency in Postural Orthostatic Tachycardia Syndrome (POTS) patients. Background : The Postural Orthostatic Tachycardia Syndrome (POTS) affects primarily young women. POTS is a form of dysautonomia that is estimated to impact between 1,000,000 and 3,000,000 Americans, and millions more around the world. We frequently find vitamin D deficiency in patients who present with POTS Methods: 180 patients were selected randomly from our clinic with POTS. Patients Vitamin D levels charts were reviewed from electronic medical records, 25-OH vitamin D (Vitamin D3 ) status was defined as Normal (>30 ng/mL), Insufficient (20.0-29.9 ng/mL), and deficient (<20 ng/mL). Results: Out of 180 patients, 170 patients are female (94%, n=170, age 31.88±10.36), 10 patients are male (6% ,age 25.83±6.19). 79 patients had vitamin D3 level >30 ng/ml, 10 patients had vitamin D3 level range >20.0 to 29.9 ng/mL, 91 patients had vitamin D3 level < 20ng/mL. Conclusion: Our research results demonstrated that Postural Orthostatic Tachycardia Syndrome (POTS) patients have a higher rate of vitamin D3 deficiency (51% have Vitamin D3 less than 20 ng/mL). Vitamin D3 levels are low in more than half of POTS patients (56% had less than 30 ng/mL )

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