scholarly journals Ovarian effects of vitamin D: a systematic review

2021 ◽  
pp. 44-49
Author(s):  
G. E. Chernukha ◽  
O. V. Yakushevskaya

The history of the discovery of vitamin D (VD) has crossed 100 years. Initially, VD deficiency was limitedly associated with the development of rickets in children. Later, on the basis of a number of studies, it was found that VD deficiency is a risk factor for osteoporosis in men and women. However, the traditional concept of VD as the main regulator of calcium-phosphorus metabolism has undergone dramatic changes over the past two decades. A prerequisite for revising the role of VD and the spectrum of its biological properties was the identification of the distribution of its specific receptors in the body. VD receptors are expressed in the intestine, thyroid and parathyroid glands, kidneys, ovaries, uterus, placenta, hypothalamus, pituitary gland and play a vital function not only in calcium homeostasis. Accordingly, the list of target organs for VD action has been modified. VD deficiency, calculated on a pandemic scale, is a factor that increases the risk of developing not only osteoporosis, but also a number of other diseases. Observational and epidemiological studies have shown that reproductive system disorders are very often combined with VD insufficiency / deficiency. Subsequent scientific research aimed at establishing the role of VD in the formation of a particular pathology of the reproductive system has shown very ambiguous results. VD is recognized as an essential component of maintaining a woman’s reproductive health. Of course, the presence of an established association is not evidence of a causal relationship. There is a need for additional testing. This review focuses on the effect of VD on ovarian function and the formation of various dysfunctional conditions.

Author(s):  
Mubeen Ahmed Memon ◽  
Sheeba Faryal Ansari ◽  
Mumtaz Ali Lakho ◽  
Mukhtiar Hussain Jaffery ◽  
Syed Zulfiquar Ali Shah ◽  
...  

Introduction: Vitamin D deficiency is common among asthmatics with literature suggesting that its low levels in the body may trigger exacerbations and decrease the response to corticosteroid treatment. It has also shown to inhibit the production of cytokines, which in turn enhances the body’s response to corticosteroid treatment during an exacerbation. Therefore, maintenance of adequate levels of vitamin D in patients with asthma may reduce the risk of exacerbation and improve their general health. This study aims to explore the role of vitamin D supplementation in preventing asthma exacerbations. Methods: This single blind parallel arm interventional study was conducted in the pulmonology ward in a tertiary care hospital from June 2018 to April 2020. Two hundred (n= 200) participants with a history of frequent acute exacerbation of asthma were enrolled in the study via consecutive convenient non-probability technique. Participants were divided into two groups; the placebo and the interventional group that received 200,000 IU of vitamin D capsule. Results: Compared to day 0, mean episodes of exacerbation in the interventional group were significantly lower after 180 days (1.1 ± 0.4 vs. 0.61 ± 0.3; p-value <0.0001). Similarly, number of asthma attacks in past 7 days was significantly lower in intervention group after 180 days (4.4 ± 2.7 vs. 3.1 ± 1.5; p-value 0.0001) Conclusion: Vitamin D supplementation is a safe and cost-friendly approach to reducing asthma exacerbations. It may also help to improve the condition in severe asthmatics with low vitamin D levels.


2018 ◽  
pp. 76-79
Author(s):  
Kh.V. Kozak ◽  

The article presents an analysis of literary sources about contemporary views on the role of vitamin D deficiency in the health problems of women of the perimenopausal period. According to research data of recent years, vitamin D plays a role not only in the control of calcium-phosphorus metabolism, but also plays a role in the pathogenesis of cardiovascular and neurological diseases, insulin resistance and diabetes, in the development of cancer and autoimmune conditions, especially in women of perimenopausal age. It is important to continue the study of the relationship between vitamin D deficiency and menopausal and menopausal disorders. Currently, the existing principles and effectiveness of the correction of lack of vitamin D in improving the quality of life of women of perimenopausal age are ambiguously assessed, which determines the relevance of this research direction. Key words: perimenopausal period, insufficiency/deficiency of vitamin D.


2015 ◽  
Vol 93 (5) ◽  
pp. 369-376 ◽  
Author(s):  
Espiridión Ramos-Martínez ◽  
Laila Gutierrez-Kobeh ◽  
Mónica Irais Villaseñor-Cardoso

Vitamin D has been described as an essential element for maintaining the homeostasis of mineral content in the body and bone architecture. However, our view of the physiological functions of this micronutrient has radically changed, owing to the vast number of properties, not calcium-related, mediated by its nuclear receptor. This receptor has been found in a variety of cells, including the immune cells, where many of the functions performed by vitamin D are related to inflammation. Although the effect of vitamin D has been widely studied in many diseases caused by viruses or bacteria, very little is known about its role in parasitic diseases, such as leishmaniasis, which is a vector-borne disease caused by different species of the intracellular parasite Leishmania spp. This disease occurs as a spectrum of different clinical syndromes, all of them characterized by a large amount of tissue damage, sometimes leading to necrosis. Owing to the involvement of vitamin D in inflammation and wound healing, its role in leishmaniasis must be relevant, and could be used as an adjuvant for the control of this parasitic disease, opening a possibility for a therapeutic application.


Scientifica ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Federico Carbone ◽  
Fabrizio Montecucco

Vitamin D has been shown to play critical activities in several physiological pathways not involving the calcium/phosphorus homeostasis. The ubiquitous distribution of the vitamin D receptor that is expressed in a variety of human and mouse tissues has strongly supported research on these “nonclassical” activities of vitamin D. On the other hand, the recent discovery of the expression also for vitamin D-related enzymes (such as 25-hydroxyvitamin D-1α-hydroxylase and the catabolic enzyme 1,25-dihydroxyvitamin D-24-hydroxylase) in several tissues suggested that the vitamin D system is more complex than previously shown and it may act within tissues through autocrine and paracrine pathways. This updated model of vitamin D axis within peripheral tissues has been particularly investigated in atherosclerotic pathophysiology. This review aims at updating the role of the local vitamin D within atherosclerotic plaques, providing an overview of both intracellular mechanisms and cell-to-cell interactions. In addition, clinical findings about the potential causal relationship between vitamin D deficiency and atherogenesis will be analysed and discussed.


2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Neti Herawati

Rampant cases of child sexual abuse in Indonesia to be the most worrying at this time, this was due to the lack of parents inintroducing reproductive system to children early because it was considered as taboo, parents only introduces the name of non genital parts of the body. In the city of Bengkulu sexual abuse of children each year increase. This study aimed to know the relationship between knowledge and the role of mothers in the introduction of the reproductive system early at the age of preschool children (3-5 years) in Beringin Raya Health Center.This study used a descriptive analytic method with cross sectional rangcangan. The population of this study were mothers of preschool children (3-5 years) in Beringi Raya Health Center Bengkulu City. The sampling technique used was proportional random sampling with data analysis using univariate and bivariate.Univariate analysis research results obtained over the majority of respondents (56.0%) had less knowledge about the reproductive system, the majority of respondents (72.0%) had less good role, and the majority of respondents (70.30%) were less in giving recognition to their reproductive system and test results statictik chi-square value of ρ value of knowledge gained 0,047 and the role ρ values obtained value of 0.021. Expected to teachers in kindergartens to provide education about reproduction on children and mothers of students to introduce the reproductive organs.


2020 ◽  
Vol 8 (4) ◽  
pp. 617-628
Author(s):  
N.A. Belykh ◽  
◽  
I.V. Piznyur ◽  

Bronchial asthma (BA) is a common disease of airways in children characterized by chronic inflammation, as well as respiratory symptoms varying in time and intensity. In recent years, an increase in the prevalence of BA has been seen, both among the adult and children’s population. The current trend stimulates scientists to continue studying the probable influence of various factors on this process, including the role of micronutrient deficiency, especially antioxidants, methylene donors and vitamin D (VD). Hypovitaminosis D has been considered as a provoking factor affecting the pathogenesis of various pathological processes. The results of numerous studies confirm the opinion that VD affects the intensity of inflammation, reducing the produc-tion of proinflammatory cytokines and secretion of mucus, and stimulates the secretion of the antiinflammatory cytokine IL-10. VD-regulated genes encode the synthesis of antimicrobial peptides that provide protection against bacteria and viruses provoking BA exacerbations. The article discusses the role of tissue growth factor (TGF-β) as an initiator of fibrosis in the epithelial cells of the respiratory tract through the activation of epithelial mesenchymal transition signals, and also discusses the inhibitory effect of VD on the processes of airway remodeling in BA. To-day it is known that VD can inhibit the progression of pulmonary fibrosis in various ways, in-cluding suppression of the expression of TGF, inhibition of the motility of epithelial cells induced by TGF-β, reduction of the excessive activation of RAS (antifibrotic effect), increase in the level of TGF antagonist. Separately, the issue of the possible strengthening of the antioxidant defense of the body in BA is considered through optimization of the supply of the organism with VD. Conclusion. Thus, taking into account the fact that to date, the results of clinical studies of the use of VD in the treatment of BA gave conflicting results, additional studies are needed to address controversial issues regarding the role of VD deficiency in the pathogenesis of BA and its control. Further understanding of the mechanisms underlying the airway remodeling will help develop a set of measures aimed at minimizing the risk of structural changes in AD.


2016 ◽  
Vol 4 (3) ◽  
pp. 526-532 ◽  
Author(s):  
Zujaja-Tul-Noor Hamid Mehmood ◽  
Dimitrios Papandreou

Vitamin D related research continues to expand and theorise regarding its involvement in obesity, as both hypovitaminosis D and obesity strike in pandemic proportions. Vitamin D plays an important role in immune system through Vitamin D Receptors (VDR), which are transcription factors located abundantly in the body. Due to this characteristic, it is potentially linked to obesity, which is a state of inflammation involving the release of cytokines from adipose tissue, and exerting stress on other organs in a state of positive energy balance. Research trials in the past couple of years and systematic reviews from SCOPUS and MEDLINE will be discussed. The role of Vitamin D throughout the lifespan (from fetal imprinting until older age), and in various other obesity mediated chronic conditions shall be highlighted. Various mechanisms attributed to the inverse relationship of Vitamin D and obesity are discussed with research gaps identified, particularly the role of adipokines, epigenetics, calcium and type of adipose tissue.


2020 ◽  
Vol 19 (6) ◽  
pp. 800-809 ◽  
Author(s):  
Kevin D. Cashman

There is widespread acknowledgement of the presence of vitamin D deficiency in the community and the pressing need to address this. Strategies to tackle this deficiency need to consider the role of food and UVB sun in supplying vitamin D to the body.


Author(s):  
Joan M. Lappe

Vitamin D deficiency is pandemic, spanning many continents and including all ages, genders and racial/ethnic groups. Currently, world-wide attention is focused on the importance of vitamin D in optimizing health and preventing disease. This focus is largely the result of the scientific discovery that vitamin D receptors are present in nearly every tissue and cell in the body and that adequate vitamin D status is essential for optimal functioning of these tissues and cells. An impressive body of research has accumulated over the past two decades providing new information about the role of vitamin D in prevention of a broad range of diseases. The purpose of this paper is to provide a review of this new information.


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