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LETTER TO THE EDITOR
Year : 2012  |  Volume : 16  |  Issue : 4  |  Page : 659-660

Does Vitamin D therapy affect hematological indices in adolescents with vitamin D deficiency?


Department of Pediatrics, Hamad Medical Centre, Doha, Qatar

Date of Web Publication5-Jul-2012

Correspondence Address:
Ashraf T Soliman
Professor of Pediatrics and Endocrinology, Department of Pediatrics, Hamad Medical Centre, Doha
Qatar
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2230-8210.98038

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How to cite this article:
Soliman AT, Eldabbagh M, Elawwa A, Saleem W. Does Vitamin D therapy affect hematological indices in adolescents with vitamin D deficiency?. Indian J Endocr Metab 2012;16:659-60

How to cite this URL:
Soliman AT, Eldabbagh M, Elawwa A, Saleem W. Does Vitamin D therapy affect hematological indices in adolescents with vitamin D deficiency?. Indian J Endocr Metab [serial online] 2012 [cited 2021 Jan 27];16:659-60. Available from: https://www.ijem.in/text.asp?2012/16/4/659/98038

Sir,

Analysis of the nonclassic actions of vitamin D (3) has highlighted a wide range of target tissues for the hormone 1,25-dihydroxyvitamin D(3) [1, 25(OH)(2)D(3)]. Vitamin D is a steroid hormone that can act on the cellular differentiation and growth in the bone marrow either directly or through hyperparathyroidism. Both systemic or locally produced 1,25 (OH)(2)D(3) may play a role in modulating cell development processes such as hematopoiesis and lymphocyte differentiation. [1],[2],[3] Thus vitamin D deficiency (VDD) may have an adverse effect on the red blood cell (RBC) erythropoiesis in the bone marrow and partially explain the high incidence of iron-deficiency anemia and recurrent infections in children with VDD. Vitamin D insufficiency has also been linked to hypertension and cardiovascular events in observational studies. It is unclear whether vitamin D supplementation can reduce blood pressure. [4] Children with higher BP levels at about 9 years of age and with large increases in BP from 9 to 18 years of age may have an increased risk of becoming hypertensive. [5]

We examined the effect of vitamin D3 therapy (10,000 IU/ kg, IM) on RBC count and indices and total and differential white blood cell (WBC) counts as well as on the blood pressure BP) and heart rate (HR) in 40 adolescents (age =14.6 ± 2.5 years) with VDD (blood level < 15 ng/ml) before after 4 weeks of therapy (vitamin D replete state).

There was no significant effect of VDD on RBC count or indices before versus after correction of vitamin D status. Vitamin D therapy did not have any significant effect on total WBC count nor on the lymphocyte/neutrophil ratio. We detected small but significant increases in the platelet and monocyte counts after vitamin D therapy (P < 0.04 and 0.03 respectively). There was no significant effect of VDD on BP or HR and correction of VDD did not significantly change the BP or HR. No significant correlation was detected between RBC indices, WBC count, and BP on the one hand and vitamin D level on the other hand [Table 1].
Table 1: Hematological data before versus after vitamin D therapy

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Vitamin D deficiency does not have significant effect on RBC count and indices, on WBC total and differential count, nor on BP and HR. A mega-dose vitamin D therapy did not have significant effect on all these parameters in adolescents.

 
   References Top

1.Yetgin S, Ozsoylu S. Myeloid metaplasia in vitamin D deficiency rickets. Scand J Hematology 1982;28:180-5.  Back to cited text no. 1
[PUBMED]    
2.Bellido T, Girasole G, Passeri G, Yu XP, Mocharla H, Jilka RL, et al. Demonstration of estrogen and vitamin D receptors in bone marrow-derived stromal cells: Up-regulation of the estrogen receptor by 1, 25-dihydroxyvitamin-D3. Endocrinology 1993;133:553-62.  Back to cited text no. 2
[PUBMED]  [FULLTEXT]  
3.Yetgin S, Yalçýn S. The effect of vitamin D3 on CD34 progenitor cells in vitamin D deficiency rickets. Turk J Pediatr2004;46:164- 6.   Back to cited text no. 3
    
4.Witham MD, Nadir MA, Struthers AD. Effect of vitamin D on blood pressure: A systematic review and meta-analysis. J Hypertens 2009;27:1948-54.  Back to cited text no. 4
[PUBMED]  [FULLTEXT]  
5.Woynarowska B, Mukherjee D, ALEX F. Roche A F, Siervogel RM. Blood Pressure Changes During Adolescence and Subsequent Adult Blood Pressure Level. Hypertension 1985;7:695-701.  Back to cited text no. 5
    



 
 
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