scholarly journals Vitamin D deficiency and cardiovascular pathology

2018 ◽  
Vol 90 (9) ◽  
pp. 144-150 ◽  
Author(s):  
V I Podzolkov ◽  
A E Pokrovskaya ◽  
O I Panasenko

Vitamin D deficiency is widespread worldwide and present in about 30-50% of population. In most cases, this problem is associated with musculoskeletal system pathology: rickets in children, and osteomalacia or osteoporosis in adults. However, in recent years, convincing data was obtained on the links between vitamin D deficiency and cardiovascular pathology. Low Vitamin D levels in humans are associated with the unfavorable cardiovascular risk factors, such as arterial hypertension (AH), diabetes mellitus, and dyslipidemia, which are the predictors of the severe cardiovascular diseases, including strokes and infarctions. It has been demonstrated that vitamin D has a strong vasoptotective effect via endothelial dysfunction improvement, prevents blood vessels and myocardium remodeling, improves blood pressure parameters, reduces the risk of development of left ventricular hypertrophy, slows down fibrosis, reduces the risk of atherosclerosis, reduces insulin resistance, and also affects inflammation and immunity. This article provides data of Russian and foreign studies demonstrating the effect of Vitamin D deficiency on the development of atherosclerosis, AH, heart rhythm disorder and progression of chronic heart failure.

InterConf ◽  
2021 ◽  
pp. 331-338
Author(s):  
Oksana Vengrzhinovskaya ◽  
Irina Bondarenko

Vitamin D deficiency occurs in 30-50% of the world's population [1]. Vitamin D deficiency increases in proportion to distance from the equator, which explains the increased filtration of UV rays. [2]. It causes rickets, osteoporosis, osteomalacia, but also cardiovascular disease. The Russian and foreign studies presented in this review indicate that moderate and severe vitamin D deficiency is a risk factor for the development of cardiovascular diseases. [3].A decrease in vitamin D levels is a risk factor for cardiovascular pathology: arterial hypertension (AH), dyslipidemia, diabetes mellitus (DM), myocardial fibrosis and a predictor of adverse cardiovascular events - strokes and heart attacks. Vitamin D has a vasoprotective effect, reducing endothelial dysfunction, has a positive effect on blood pressure, reduces the risk of left ventricular hypertrophy and atherosclerosis, slows down vascular remodeling and myocardial fibrosis, reduces insulin resistance, and affects the course of inflammatory processes [4].


2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Chaoxun Wang

Vitamin D deficiency is a highly prevalent condition. Low vitamin D levels have long been associated with bone diseases, such as rickets in children and osteomalacia and osteoporosis in adults. However, it has become apparent in recent years that adequate vitamin D levels are also important for optimal functioning of many organs and tissues throughout the body, including the cardiovascular system. Evolving data indicate that vitamin D deficiency is associated with an increased risk of cardiovascular disease (CVD). Studies have shown that low vitamin D levels are associated with hypertension, diabetes, metabolic syndrome, left ventricular hypertrophy, and chronic vascular inflammation, all of which are risk factors for CVD. This paper reviews the definition and pathophysiology of vitamin D deficiency, clinical evidence linking vitamin D and CVD risk, diabetes and its complications, and metabolic syndrome.


Author(s):  
Natalya V. Orlova ◽  
Anastasiya Ya. Starokozheva ◽  
Elena A. Zhidkova ◽  
Konstantin G. Gurevich

Introduction. Heart rhythm disorders in locomotive drivers are a significant disease that increases the risk of sudden death and thromboembolic complications, including during professional duties. Conditions associated with cardiac arrhythmias in locomotive drivers can create a state for disastrous situations on the railway. Identification of risk factors for heart rhythm disorders and their prevention in locomotive drivers is an important task. The study aimed to study the role of vitamin D in developing cardiac arrhythmias in locomotive drivers. Materials and methods. We recruited the patients in the cardiology department's conditions, JSC "Russian Railways" in Moscow. The study included patients with detected cardiac arrhythmias. We did not have patients with a history of surgical treatment of cardiac arrhythmias with organic myocardial diseases. Namely: ischemic heart disease, myocarditis, congenital and acquired heart defects, cardiomyopathy. Also, scientists did not study patients with somatic disorders, decompensation of chronic diseases, and endocrine and urinary systems. Results. The study revealed a widespread prevalence of low vitamin D levels among locomotive drivers with cardiac arrhythmias. The statistical analysis showed the effect of vitamin D deficiency on cardiac arrhythmias' development with a high risk of sudden death and thromboembolic complications. We revealed the negative impact of occupational stress on the development of cardiac arrhythmias in locomotive drivers. Scientists have found the relationship of vitamin D deficiency with the level of anxiety of drivers. A review of studies on the role of vitamin D deficiency in developing cardiovascular diseases, including cardiac arrhythmias, is presented. The results of the study are consistent with the data of the scientific literature. Conclusions. It is necessary to survey locomotive drivers to identify vitamin D deficiency with the subsequent correction to prevent cardiac arrhythmias.


2019 ◽  
Vol 8 (2) ◽  
pp. 12-20
Author(s):  
R. S. Bogachev ◽  
L. V. Mikhailova ◽  
E. S. Shytova ◽  
V. V. Mordvincev ◽  
V. Ankudovich ◽  
...  

Aim. To assess vitamin D level in patients with acute coronary syndrome and to determine the relationships of vitamin D level with specific patterns of cardiovascular disease in this group of patients.Methods. 50 patients (35 (70%) males and 15 (30%) females) urgently admitted to the emergency cardiology department of Kaliningrad Regional Hospital were enrolled in the cross-sectional observational study. Patients with diabetes mellitus, autoimmune diseases and cancer were excluded from the study. The mean age of patients was 60 (55; 66) years. Cardiovascular risk factors (obesity, smoking, physical activity, alcohol consumption, genetic predisposition) were assessed in all patients. Total serum cholesterol levels, GFR (CKD-EPI) and troponin levels were measured in all participants. Echocardiography included the measurement of the left ventricular mass index. Coronary angiography with omnipaque contrast was performed in all cases. 25-OH vitamin D was measured with enzyme-linked immunosorbent assay (ELISA).Results. The majority of patients with acute coronary syndrome had vitamin D deficiency. 3 (6%) patients had severe vitamin D deficiency. The subgroup of patients with marked vitamin D deficiency (n = 39) more often had elevated blood pressure probably related to the left ventricular hypertrophy and left atrial enlargement. Left ventricular systolic dysfunction and occlusive coronary artery disease were more common in patients with lower vitamin D levels. Statistically significant correlations had not been found between vitamin D levels and cardiovascular risk factors as well as laboratory data.Conclusion. Vitamin D level below normal range was detected in the vast majority of patients with acute coronary syndrome, of them 6 % of patients had critically low vitamin D levels.


2020 ◽  
Vol 90 (3-4) ◽  
pp. 346-352
Author(s):  
Vincenzo Pilone ◽  
Salvatore Tramontano ◽  
Carmen Cutolo ◽  
Federica Marchese ◽  
Antonio Maria Pagano ◽  
...  

Abstract. We aim to assess the prevalence of vitamin D deficiency (VDD) in patients scheduled for bariatric surgery (BS), and to identify factors that might be associated with VDD. We conducted a cross-sectional observational study involving all consecutive patients scheduled for BS from 2017 to 2019. The exclusion criteria were missing data for vitamin D levels, intake of vitamin D supplements in the 3 months prior to serum vitamin D determination, and renal insufficiency. A total of 206 patients (mean age and body mass index [BMI] of 34.9 ± 10.7 years, and 44.3 ± 6.99 kg/m2, respectively) met the inclusion criteria and were enrolled for data analysis. VDD (<19.9 ng/mL), severe VDD (<10 ng/mL), and vitamin D insufficiency (20–29.9 ng/mL) were present in 68.8 %, 12.5 %, and 31.2 % of patients, respectively. A significant inverse correlation was found between vitamin D levels and initial BMI, parathyroid hormone, and homeostatic model assessment of insulin resistance (r = −0.280, p < 0.05; r = −0.407, p = 0.038; r = −0.445, p = 0.005), respectively. VDD was significantly more prevalent in patients with higher BMI [−0.413 ± 0.12, CI95 % (−0.659; −0.167), p = 0.006], whereas no significant association between hypertension [−1.005 ± 1.65, CI95 % (−4.338; 2.326), p = 0.001], and diabetes type 2 (T2D) [−0.44 ± 2.20, CI95 % (−4.876; 3.986), p = 0.841] was found. We observed significant association between female sex and levels of vitamin D [6.69 ± 2.31, CI95 % (2.06; 11.33), p = 0.006]. The present study shows that in patients scheduled for BS, VDD deficiency is common and was associated with higher BMI, and female sex.


2020 ◽  
Vol 11 (5) ◽  
pp. 49-53
Author(s):  
Archana Bhat ◽  
Arunachalam Ramachandran ◽  
Pradeep Periera ◽  
Akshatha Rao Aroor

Background: Vitamin D, a fat-soluble vitamin has its receptor present in myriad of tissues and it modulates multiple cellular processes. Vitamin D deficiency is reported to be associated with coronary artery disease. Cardiovascular disease is the leading cause of mortality worldwide. Aims and Objective: The primary outcome was to investigate if there is a correlation of 25-OH levels with the percentage of luminal stenosis, as measured with coronary angiogram. The secondary outcome was to determine the differences in angiographically proven luminal stenosis across categories of 25-OH vitamin D levels. Materials and Methods: Thirty patients with acute coronary syndrome with diabetes mellitus were included in this cross-sectional descriptive study. All patients were tested for fasting vitamin D levels, fasting blood sugar, HbA1C and serum creatinine. Detailed history of the patients was recorded. Data was analyzed by the statistical software SPSS version 19 and p value <0.05 was considered significant. Statistical tests like Chi- square, independent t test and log regression was used. Results: In this study 30 patients undergoing coronary angiography for acute coronary syndrome, Vitamin D levels showed severe deficiency in 6.7% (2) cases while mild deficiency was seen in 50% of the cases. Patients with single vessel disease on the coronary angiogram had lower mean HbA1C (9.18) levels in our study. Patients with triple vessel disease had poorly controlled mean HbA1C levels (10.42). Conclusion: In this study we did not find any significant difference between the serum Vitamin D deficiency levels with patients with angiographic severity of the coronary artery disease. Patients with poorly controlled diabetes mellitus had more severe angiographic proven coronary artery disease.


Author(s):  
Aya Hallak ◽  
Malhis Mahmoud ◽  
Yaser Abajy Mohammad

The objectives of this study were to estimate the prevalence of vitamin D deficiency in patients with acute coronary syndrome in comparison with normal individuals and study the correlation between these two conditions. We measured the plasma 25-hydroxy vitamin D (25-OH-D) levels in 60 patients with acute coronary syndromes (ACS) of both gender and in 30 age matched control individuals of both gender without any known cardiovascular or systemic diseases. The levels of 25-OH-D were measured by ELISA method and the results were statically analyzed to find out any possible correlation. We classified the cases according to their plasma 25(OH)D levels. 25(OH)D levels of ≥ 30 ng/ml were considered normal, levels < 30 and > 20 ng/ml were classified as insufficient, while levels of ≤ 20 ng/ml were classified as deficient. In the current study the prevalence of hypovitaminosis D in the patients group was much higher than it was in the control group. Vitamin D deficiency was observed in 80% and insufficiency in 13% of total patients of ACS, there by bringing the total count to 93%. Whereas only 7% of the patients had adequate vitamin D levels. Thus, these results indicate the existence of a significant correlation between the vitamin D deficiency and ACS in comparison to healthy controls


2020 ◽  
Vol 16 (7) ◽  
pp. 1015-1027
Author(s):  
Mohammad Bagherniya ◽  
Zahra Khorasanchi ◽  
Mina S. Bidokhti ◽  
Gordon A. Ferns ◽  
Mitra Rezaei ◽  
...  

Background: Vitamin D deficiency is a common medical condition worldwide. In Iran, it has been reported that between 30-90% of people have vitamin D deficiency. However, its distribution in different parts of the country and among different age and regional groups is unclear. Therefore, the aim of this study was to review the recent literature on vitamin D deficiency in Iran. Methods: The literature review was performed using Web of Science, PubMed-Medline, Scopus and Scientific Information Database (SID) with a cut-off date of November 2016 to identify articles on vitamin D status in Iran published in the last 10 years. Studies in English and Persian that reported vitamin D levels in male and female subjects of all age groups and in healthy populations were included. Results: From 325 studies that were initially retrieved, 82 articles met the inclusion criteria. A high prevalence of vitamin D deficiency was reported, and in some regions, this was reported as >90% and was found in all age groups and in all regions of Iran. Conclusion: This review highlights the very high prevalence of vitamin D deficiency in Iran. It will be important to recognize the importance of vitamin D deficiency as a major public health problem in Iran.


2020 ◽  
Vol 20 (8) ◽  
pp. 1282-1294
Author(s):  
Meroua Bouchemal ◽  
Djennat Hakem ◽  
Malha Azzouz ◽  
Chafia Touil-Boukoffa ◽  
Dalila Mezioug

Background: Metabolic syndrome (MetS) is a combination of metabolic disorders with increased risks for several diseases, such as cardiovascular diseases and diabetes. It is associated with the presence of various inflammatory molecules. Vitamin D plays an important role in the regulation of metabolism homeostasis. Objective: The main goal of this work is to investigate vitamin D levels among Algerian MetS patients and its possible outcomes on key molecules of the immune response, as well, the immunomodulatory effects of its active metabolite. Methods: We evaluated vitamin D status by the electrochemiluminescence method, Nitric Oxide (NO) levels by the Griess method and Matrix Metalloproteinases (MMPs) activities such as MMP-2 and MMP-9 by zymography in plasma of patients and healthy controls (HC). The immunomodulatory effects of the active metabolite of vitamin D (α-25 (OH)2D3) on the production of NO, IL-6, IL-10, TGF- β and s-CTLA-4 were assessed by Griess method and ELISA, in peripheral blood mononuclear cells (PBMCs) of Algerian MetS patients and HC. MMPs activities were also determined ex-vivo, while iNOS expression was assessed by immunofluorescence staining. Results: Severe vitamin D deficiency was registered in Algerian MetS patients. The deficiency was found to be associated with an elevated in vivo NO production and high MMPs activity. Interestingly, α-25 (OH)2D3 declined the NO/iNOS system and IL-6 production, as well as MMPs activities. However, the ex-vivo production of IL-10, TGF-β increased in response to the treatment. We observed in the same way, the implication of s-CTLA-4 in MetS, which was markedly up-regulated with α-25 (OH)2D3. Conclusion: Our report indicated the relationship between MetS factors and Vitamin D deficiency. The ex-vivo findings emphasize its impact on maintaining regulated immune balance.


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