Startseite Effect of high-dose vitamin D supplementation on antibody titers to heat shock protein 27 in adolescent girls
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Effect of high-dose vitamin D supplementation on antibody titers to heat shock protein 27 in adolescent girls

  • Zahra Khorasanchi , Afsane Bahrami , Shima Tavallaee , Zahra Mazloum Khorasani , Mozhgan Afkhamizadeh , Ezzat Khodashenas , Gordon A. Ferns und Majid Ghayour-Mobarhan ORCID logo EMAIL logo
Veröffentlicht/Copyright: 29. April 2020

Abstract

Background

Although vitamin D deficiency is associated with several inflammatory conditions, there have been few studies on the effects of vitamin D supplementation on markers of oxidative stress (OS) and inflammation. The aim of the current study was to evaluate the effects of high-dose vitamin D supplementation on heat shock protein 27 antibody (anti-Hsp27) titers in adolescent girls.

Methods

Five hundred and fifty adolescent girls received vitamin D3 at a dose of 50,000 IU/week for 9 weeks. Demographic, clinical and biochemical markers including serum fasting blood glucose (FBG), lipid profile and anti-Hsp27 titers as well as hematological parameters including white blood cell (WBC) count and red blood cell (RBC) distribution width (RDW) were determined in all the subjects at baseline and at the end of the study.

Results

Serum vitamin D significantly increased from 6.4 (4.2–9.6) ng/mL to 35.6 (25.8–47.5) ng/mL (p < 0.001) following the intervention. Furthermore, serum anti-Hsp27 titers were significantly lower after the 9-week vitamin D administration period (0.22 [0.12–0.33] optical density [OD] vs. 0.19 [0.11–0.31] OD; p = 0.002). A significant correlation was found between serum anti-Hsp27 and RDW (r = 0.13, p = 0.037). The reduction in RDW values after intervention was particularly evident in subjects with the greatest increase in serum vitamin D levels.

Conclusions

High-dose vitamin D supplementation was found to reduce antibody titers to Hsp27. Further randomized placebo-controlled trials are warranted to determine the long-term effect of vitamin D administration on the inflammatory process especially that associated with chronic disease.


Majid Ghayour-Mobarhan, MD, PhD, Metabolic Syndrome Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran, Phone: +98 5138002288, Fax: +98 5138002287
aZahra Khorasanchi and Afsane Bahrami equally contributed as first author.
  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission. Study design: Majid Ghayour-Mobarhan, Zahra Khorasanchi and Afsane Bahrami. Data collection: Zahra Khorasanchi, Afsane Bahrami, Shima Tavallaee, Zahra Mazloum Khorasani, Mozhgan Afkhamizadeh and Ezzat Khodashenas. Statistical analysis: Afsane Bahrami. Data interpretation: Zahra Khorasanchi, Afsane Bahrami, Shima Tavallaee, Majid Ghayour-Mobarhan and Gordon A. Ferns. Manuscript preparation: Zahra Khorasanchi, Afsane Bahrami and Majid Ghayour-Mobarhan. Literature search: Zahra Khorasanchi, Afsane Bahrami and Majid Ghayour-Mobarhan. Collection of funds: Majid Ghayour-Mobarhan.

  2. Research funding: This study was supported by Mashhad University of Medical Sciences, http://dx.doi.org/10.13039/501100004748 (grant number 931188).

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

  5. Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.

  6. Conflict of interest: The authors have no conflict of interest to declare.

  7. Informed consent: Informed consent was obtained from all participants and their parents.

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Received: 2019-06-26
Accepted: 2020-01-06
Published Online: 2020-04-29
Published in Print: 2020-05-26

©2020 Walter de Gruyter GmbH, Berlin/Boston

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