Zahra khorasanchi; Mohammad Vahedifard; Kimia Mohammadhasani; Yasamin Sharifan; Zahra Dehnavi; Ramtin Naderian; Ali Jafarzadeh Esfehani; Payam Sharifan; Reza Zare-Feyzabadi; Gordon A. Ferns; Majid Ghayour
Abstract
Introduction: The pandemic of COVID-19 created a psychological response. So, the psychological function of COVID-19 patients is an important subject that forces us to follow up with them.Aim: Assess the correlation between vitamin D serum concentrations and psychological functions such as insomnia, stress, ...
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Introduction: The pandemic of COVID-19 created a psychological response. So, the psychological function of COVID-19 patients is an important subject that forces us to follow up with them.Aim: Assess the correlation between vitamin D serum concentrations and psychological functions such as insomnia, stress, and depression through the COVID-19 pandemicMethods: In this cross-sectional study, blood samples from 120 COVID-19 patients (61 males and 59 females) who had more than 30 years, were taken. Also, 25(OH)D Serum level of COVID-19 patients was analyzed. The Insomnia Severity Index (ISI), Depression anxiety stress scales (DASS), and the Short Form Health Survey (SF-36) were used to analyze insomnia, anxiety, stress, quality of life, and depression.Results: The relationship between temperature (p=0.039), PCO2 (p=0.022), and serum vitamin D level was significant. Additionally, there was a significant correlation between stress (p=-0.023, OR=0.389, 95% CI for OR=0.047, 0.843), depression (p=0.012, OR=0.659, 95% CI for OR=0.476, 0.913), and the concentration of serum vitamin D.Conclusion:This study recommends that vitamin D supplementation improve psychological state in COVID-19 patients.
Maryam Emadzadeh; Seyed Mostafa Parizadeh; Reza Jafarzadeh-Esfehani; Reza Sahebi; Ramin Sadeghi; Gordon A. Ferns; Majid Ghayour-Mobarhan
Abstract
Objectives: Various fortification strategies have been proposed to account to treat or prevent vitamin D deficiency. However, the optimum fortification approach, and the effect of these on health is not widely understood. There have been controversial reports regarding the effect of vitamin D fortification ...
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Objectives: Various fortification strategies have been proposed to account to treat or prevent vitamin D deficiency. However, the optimum fortification approach, and the effect of these on health is not widely understood. There have been controversial reports regarding the effect of vitamin D fortification on the lipid profile. The aim of present review is the evaluation of administration of vitamin D fortified products on lipid profile.Methods: We used databases including PubMed/Medline, ISI Web of Knowledge, Science Direct, Scopus and Cochrane Library. A search was conducted until 2020 Randomized controlled trials that have assessed the relationship between consumption of vitamin D fortified products and serum lipid profile were included. The relationship between fortification dose, dairy or non-dairy fortification as well as duration of intervention and plasma lipid profiles evaluated in separate sub-groups.Results: Among serum lipids including total cholesterol(TC), triglyceride(TG), low density lipoprotein(LDL) and high density lipoprotein(HDL), fortification of vitamin D was reported to have a significant effect on reducing total cholesterol (pooled estimate: -0.089 mmol/L, 95%CI: -0.134 to -0.044, p<0.001). Its effect on other lipid profiles were not significant (LDL pooled estimate:-0.115 mmol/L, 95%CI:-0.238 to 0.008; HDL pooled estimate:0.024 mmol/L, 95%CI:-0.024 to 0.071; TG pooled estimate:-0.176mmol/L, 95%CI:-0.499 to 0.148).Conclusion: This meta-analysis demonstrated that vitamin D fortification could significantly reduce TC both in long and short term interventions and in different products. However this reduction, whilst statistically significant, may not be clinically important. The effect of fortification on other lipid profile components vary depending on dose and duration.
Nasrin Milani; Mohamad Sajjadi-Manesh; Ehsan Mousa-Farkhani; Ali Taghipour
Abstract
Introduction: Hypertension (HTN) is one of the most life-threatening disorders worldwide. Although some examinations have demonstrated an incidental relationship between blood pressure and serum level of 25-hydroxyvitamin D, there have been new exchanges of views with respect to the influence of low ...
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Introduction: Hypertension (HTN) is one of the most life-threatening disorders worldwide. Although some examinations have demonstrated an incidental relationship between blood pressure and serum level of 25-hydroxyvitamin D, there have been new exchanges of views with respect to the influence of low vitamin D levels in hypertension. This study aims to find out the relationship between hypertension and regular consumption of vitamin D. Methods: A case-control study was conducted with regard to secondary data (SINA system) among people, aged 30 years old or older, registered in 2017-2018. A sample size of 1,500 patients was used comprising of 500 patients with hypertension as the case group and 1,000 people without history of hypertension as the control group. The population was selected randomly. High blood pressure diagnostic criteria were considered in the same manner with the clinical guidelines of the 7th National Joint Committee. Data were analyzed using SPSS 22 software.Results: Regular consumption of vitamin D had a protective role on hypertension (P value <0.05) and [OR= 0.421 (0.353- 0.505)].Conclusion: By identifying hypertension risk factors, taking measures to prevent it would be more practical and the risk of hypertension can be reduced. An enormous volume of epidemiological and empirical proof is indicative of the fact that vitamin D deficiency can lead to high blood pressure. The present investigation proves that vitamin D supplementary may serve as a convenient method to diminish the risk of progression of increased blood pressure due to its protective effect on blood pressure.
Zahra Amirian; Fatemeh Behmanesh; Elahe Heidari
Abstract
Recent studies have reported a relationship between vitamin D and atopic diseases such as asthma, allergic rhinitis, and atopic dermatitis, which is due to the recently discovered vitamin D receptors on many immune system cells. Among all atopic diseases, asthma has been studied the most in this regard. ...
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Recent studies have reported a relationship between vitamin D and atopic diseases such as asthma, allergic rhinitis, and atopic dermatitis, which is due to the recently discovered vitamin D receptors on many immune system cells. Among all atopic diseases, asthma has been studied the most in this regard. However, the role of vitamin D in other atopic diseases such as allergic rhinitis and atopic dermatitis is a matter of controversy. In this paper, we review the literature on the association between atopic diseases and vitamin D level with a focus on the childhood period. As of today, the role of vitamin D in atopic march is not clear and studies show controversial results. Therefore, further studies with adequate sample sizes and correction for perplexing factors are needed since this could be an innovative treatment in atopic children. It is also advisable to examine high-risk groups of children for vitamin D deficiency. According to the extracted data, vitamin D has a protecting effect against atopic diseases. At the same time, no evidence was found for such an association in some studies, thus, further studies are needed to clarify this issue.
Hooman Mosannen Mozaffari; Hosein Ali Abbasi; Ladan Goshayeshi; Abbas Esmaeelzadeh; Ali Bahari; Ali Mokhtarifar; Azita Ganji; Omid Ghanaei; Kambiz Akhavan Rezayat
Abstract
Introduction: It is long known that vitamin D deficiency was common in patients with liver disease, but little is known on the therapeutic effects of vitamin D, especially in patients with chronic liver disease. In this study, we aimed to systematically review the literatures and study the evidences ...
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Introduction: It is long known that vitamin D deficiency was common in patients with liver disease, but little is known on the therapeutic effects of vitamin D, especially in patients with chronic liver disease. In this study, we aimed to systematically review the literatures and study the evidences in which the effects of vitamin D supplementation had been investigated on the severity of chronic liver disease or liver cirrhosis.Methods: A systematic literature search was performed by using the following key terms “vitamin D supplementation” and “chronic liver disease” in the PubMed, Scopus and Google scholar to find relevant articles. After collecting the eligible documents, data were extracted and described based on the purpose of this review.Result: Of total 196 articles found, only 7 relevant documents with 518 studied patients were included. The results of this study showed that the levels of 25(OH) D were considerably lower in patients with chronic liver disease. Findings showed that vitamin D supplementation can rise up the mean serum level of 25(OH) D in patients with severe vitamin D deficiency, especially patients with liver cirrhosis.Conclusion:The results of this review showed that vitamin D deficiency is associated with the severity of liver disease and may have prognostic value in the assessment of liver disease. Also, it was shown that vitamin D supplementation may be helpful for the treatment of liver disease at least in certain groups of patients.
Bentolhoda Sahebnasagh; Mohammad Javad Hosseinzadeh-Attar; Amrollah Sharifi
Abstract
Findings have shown that low serum 25-hydroxy vitamin D level is a possible risk factor for incidence of preeclampsia during pregnancy. Vitamin D has important effects on multiple biological pathways, including angiogenesis. Some studies have shown that vitamin D deficiency is highly prevalent among ...
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Findings have shown that low serum 25-hydroxy vitamin D level is a possible risk factor for incidence of preeclampsia during pregnancy. Vitamin D has important effects on multiple biological pathways, including angiogenesis. Some studies have shown that vitamin D deficiency is highly prevalent among women suffering from preeclampsia, influencing immune modulation and vascular function. Evidence has shown that an imbalance of pro-antigenic and anti-angiogenic proteins can be considered as a possible etiological factor in the development of preeclampsia. Besides, there is a series of studies linking the renin–angiotensin aldosterone system (RAAS) with preeclampsia. In this article, we review the current studies evaluating the association between maternal vitamin D status and vascular health, metabolism, placental immune function and the risk of preeclampsia. We provided evidence of the different factor involved in the metabolism of vitamin D and vitamin D receptor (VDR) expression, gene regulations, immune function, and chronic disease when vitamin D is used optimally.
Mahnaz Hushmand; Fatemeh Behmanesh; Hamid Ahanchian; Maryam Khalesi; Alireza Ataei
Abstract
The active form of vitamin D is synthesized in some body organs following sun exposure and dietary intake. Vitamin D exhibits its major and critical effects not only through regulation of calcium and phosphate metabolism but also by influencing on respiratory and immune system. Serum concentrations of ...
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The active form of vitamin D is synthesized in some body organs following sun exposure and dietary intake. Vitamin D exhibits its major and critical effects not only through regulation of calcium and phosphate metabolism but also by influencing on respiratory and immune system. Serum concentrations of 25-hydroxyvitamin D below the optimum limit lead to vitamin D insufficiency or maybe deficiency. These inappropriate concentrations of vitamin D lead to different types of pulmonary diseases such as viral and bacterial respiratory infection, asthma, chronic obstructive pulmonary disease, and cancer. In this review we described the association between vitamin D deficiency and severe therapy resistant asthma. We also reviewed the underlying molecular mechanism of vitamin D deficiency in children with severe- therapy resistant asthma. Based on current information, future clinical trial are needed to study the role of vitamin D supplementation on different groups of patients with severe asthma including infants, children of school age, and ethnic minorities.
Ameneh Movahedian; Nayereh Ghomian; Samaneh Soltani; Nushin Chalakinia
Abstract
Complications related to pregnancy and childbirth are the leading causes of disability and death among women of reproductive age in developing countries, constituting at least 18% of the global burden of disease in this age-group. Preeclampsia is a serious, pregnancy-specific disorder that affects up ...
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Complications related to pregnancy and childbirth are the leading causes of disability and death among women of reproductive age in developing countries, constituting at least 18% of the global burden of disease in this age-group. Preeclampsia is a serious, pregnancy-specific disorder that affects up to 8% of pregnant women. Preeclampsia may lead to maternal and offspring mortality and it increases the risk of premature birth and fetal growth restriction. Vitamin D is a potent immunomodulatory agent. There is an evidence pointing toward an association between the vitamin D status and preeclampsia risk. The purpose of the present study is to review the available literature investigating the role of serum levels of vitamin D in preeclampsia.The study findings further highlight the possibility that vitamin D deficiency is a strong, independent risk factor for preeclampsia and vitamin D supplementation may be a simple step to reduce the risk of adverse pregnancy outcomes providing lifelong benefits both to the mother and her developing child.
Morteza Hariri Ahari; Elham Pishbin
Abstract
Vitamin D receptors are located in body tissues and cells. In various physiological processes of the body the primary circulating form of vitamin D, 25-hydroxyvitamin D, will become the active form, 1,25-dihydroxyvitamin D, through many enzymatic. Although different functions of vitamin D has been identified, ...
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Vitamin D receptors are located in body tissues and cells. In various physiological processes of the body the primary circulating form of vitamin D, 25-hydroxyvitamin D, will become the active form, 1,25-dihydroxyvitamin D, through many enzymatic. Although different functions of vitamin D has been identified, reducing the possibility of several chronic diseases, including common cancers, autoimmune, infectious, and cardiovascular diseases is proposed as the major role of this component. According to various experimental and clinical studies, vitamin D affects the immune system activity. In this review we study the possible effects of vitamin D on sepsis. The purpose of this review is to evaluate and summarize the role of vitamin D in the immune system, with particular focus on infections and sepsis. We studied different areas related to vitamin D in the literature review including its roles sepsis and infection incidence, as well as seasonal and racial variation in sepsis. Based on evidence, vitamin D positively affects the immune system, so it might act as a therapeutic strategy. Despite several experimental studies which demonstrated the beneficial effects of vitamin D on improved functioning of the immune system, its association with prevention or management of infections and sepsis is not revealed through clinical investigations.