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1000 Titel
  • Sunlight exposure vs. vitamin D supplementation on bone homeostasis of vitamin D deficient rats
1000 Autor/in
  1. Abulmeaty, Mahmoud Mustafa Ali |
1000 Erscheinungsjahr 2016
1000 Art der Datei
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2016-11-09
1000 Erschienen in
1000 Quellenangabe
  • 11:1-9
1000 Copyrightjahr
  • 2017
1000 Lizenz
1000 Verlagsversion
  • http://dx.doi.org/10.1016/j.yclnex.2016.10.003 |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • BACKGROUND & AIM OF THE WORK: Vitamin D deficiency is highly prevalent in our locality and worldwide. Two major sources of Vit D replenishment are available; sun exposure and dietary supplementation. This study compared sun exposure with vitamin D3 supplementation on restoring bone homeostasis in a vitamin D deficient (VDD) versus vitamin D sufficient (VDS) rat models. METHODS: Vitamin D deficient-normocalcemic diet was used for 6 weeks to produce a group of VDD rats (n = 21), then were subdividedinto three equal subgroups: direct sunlight exposure subgroup (Sd subgroup), vitamin D3 treated subgroup (Tt subgroup), and a Control subgroup (Ct group). Normal rats (group II) (n = 14) were fed on normal vitamin D-diet for equal period and then subdivided into two equal subgroups: direct sunlight exposure subgroup (Ss subgroup), and a control (C) subgroup. For all of the subgroups, Exposures and supplementations were continued for 10 days, then the plasma 25 hydroxy vitamin D3, parathyroid hormone, calcium, phosphorus levels and alkaline phosphatase activity were estimated and femur bones were used to prepare histopathological sections. RESULTS: The sun-exposed vitamin D deficient group showed a significant reduction of parathyroid hormone more than that in vitamin D supplemented group vs. VDD controls (67.69 ± 13.18 and 78.93 ± 8.31 vs. 86.05 ± 9.67 pg/ml, respectively), while sun-exposed vitamin D sufficient group showed an insignificant change (15.56 ± 2.73 vs. 16.84 ± 3.16 pg/ml). Furthermore, the improvement of osteoid area and the reduction of trabecular separation in the bone sections among vitamin D deficient rats, after sunlight exposure, were better. CONCLUSIONS: Sunlight-exposure have a more positive effect on bone structure and homeostasis than vitamin D supplementation and control. This effect was more with vitamin D deficient than vitamin D sufficient rats.
1000 Sacherschließung
lokal Vitamin D deficiency
lokal Sunlight exposure
lokal Bone histology
lokal Vitamin D supplementation
lokal Bone homeostasis
1000 Fachgruppe
  1. Medizin |
  2. Ernährungswissenschaften |
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/creator/QWJ1bG1lYXR5LCBNYWhtb3VkIE11c3RhZmEgQWxp
1000 Label
1000 Förderer
  1. King Abdulaziz City for Science and Technology, Kingdom of Saudi Arabia
1000 Fördernummer
  1. 12-NAN 2576-02
1000 Förderprogramm
  1. National Plan for Science, Technology and Innovation (MAARIFAH)
1000 Dateien
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6411722.rdf
1000 Erstellt am 2018-12-11T11:44:12.332+0100
1000 Erstellt von 218
1000 beschreibt frl:6411722
1000 Bearbeitet von 25
1000 Zuletzt bearbeitet 2020-01-30T22:08:53.248+0100
1000 Objekt bearb. Tue Dec 11 11:44:51 CET 2018
1000 Vgl. frl:6411722
1000 Oai Id
  1. oai:frl.publisso.de:frl:6411722 |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
1000 Gegenstand von

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