Vitamin D and vitamin D receptor in patients with ophthalmic pterygium

Submitted: 28 July 2017
Accepted: 15 September 2017
Published: 30 October 2017
Abstract Views: 1465
PDF: 837
HTML: 59
Publisher's note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Authors

Pterygium, an ultraviolet radiation (UV)-related disease, is a relatively benign process, but since it displays tumor-like features, it has been proposed to be a neoplastic- like growth disorder. Vitamin D performs a number of functions in addition to calcium homeostasis, as inhibition of cell proliferation, activation of apoptotic pathways, and inhibition of angiogenesis. Since the antitumor actions of vitamin D are mediated primarily through the nuclear vitamin D receptor (VDR), the aim of the present study was to investigate vitamin D status in patients with pterygium and in control subjects, and VDR immunohistochemical expression in samples of pterygium and normal conjunctiva in order to evaluate a possible role of vitamin D pathway in the pathogenesis of the disease. Serum vitamin D concentration was measured among 41 patients with pterygium and 47 volunteers by an automated chemiluminescence immunoassay. Moreover, 23 formalin- fixed and paraffin-embedded pterygium biopsy samples and 24 conjunctiva specimens were treated for the immunohistochemical demonstration of VDR using the streptavidin-biotin alkaline phosphatase method. No differences were observed about vitamin D level between patient with pterygium and control group, but significant differences between VDR immunolocalization in pterygium and normal conjunctiva were observed (P=0.00001). In conjunctiva, the immunoreactivity, localized mainly in cytoplasm of epithelial cells, may probably demonstrate VDR regulation of cell growth, differentiation, and apoptosis, while in pterygium VDR co-localization in the nucleus and cytoplasm of epithelial cells may indicate alternative nuclear pathways by which vitamin D might exert its antiinflammatory and anti-proliferative effects by the regulation of gene expression.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.

Citations

Supporting Agencies

The study was supported by grants from the Fondazione Banco di Sardegna (FBS), and from the Fondo Integrativo per la Ricerca (FIR) of the University of Cagliari, Italy.

How to Cite

Maxia, C., Murtas, D., Corrias, M., Zucca, I., Minerba, L., Piras, F., … Perra, M. T. (2017). Vitamin D and vitamin D receptor in patients with ophthalmic pterygium. European Journal of Histochemistry, 61(4). https://doi.org/10.4081/ejh.2017.2837

Similar Articles

1 2 3 4 5 6 7 8 9 10 > >> 

You may also start an advanced similarity search for this article.

Publication Facts

Metric
This article
Other articles
Peer reviewers 
2
2.4

Reviewer profiles  N/A

Author statements

Author statements
This article
Other articles
Data availability 
N/A
16%
External funding 
N/A
32%
Competing interests 
N/A
11%
Metric
This journal
Other journals
Articles accepted 
57%
33%
Days to publication 
93
145

Indexed in

Editor & editorial board
profiles
Academic society 
N/A