Vitamina D e letteratura: fatti e misfatti

2021 ◽  
Vol 40 (10) ◽  
pp. 646-649
Author(s):  
Sarah Contorno ◽  
Paolo Andrea Pecile
Keyword(s):  
Vitamin D ◽  
Serum Level ◽  
Infectious Diseases ◽  
Vitamin D Deficiency ◽  
Scientific Literature ◽  
Recommended Dietary Allowance ◽  
Entire Population ◽  
Vitamina D ◽  
Upper Limit ◽  
Pathological Conditions

In the last twenty years, the international scientific literature paid particular attention to vitamin D deficiency. Many pathological conditions, like allergy, asthma, cancers, autoimmune, cardiovascular and infectious diseases were attributed to vitamin D deficiency. Could a single deficit be re-sponsible for such a lot of different illnesses? Probably, it could not. The mistake lies in the interpretation of vitamin D suggested serum level cut-off. Vitamin D Recommended Dietary Allowance (RDA) of 20 ng/dl, which is the estimated need for people at the upper limit of the Gaussian distri-bution, was considered like a cut-off. Instead, almost the entire population (97.5%) shows vitamin D needs inferior to 20 ng/ml. This way, a screening based on a wrong cut-off can lead to a useless over-supplementation.

Analysis of vitamin D deficiency in patients of different age groups

2020 ◽  
pp. 64-70
Author(s):  
Timur Minasov ◽  
Radik Nurlygayanov ◽  
Angela Vershinina ◽  
Yulia Soboleva ◽  
Damir Akhmeldinov ◽  
...  
Keyword(s):  
Vitamin D ◽  
Blood Serum ◽  
Vitamin D Deficiency ◽  
Russian Federation ◽  
Age Groups ◽  
Upper Limit ◽  
The Russian Federation ◽  
Physiological Values

The results of a study of the concentration of vitamin D in blood serum of 3455 residents of Ufa are presented. Physiological values of 25(OH)D were observed in 34.9 % (274) of men and 31.7 % (847) of women, which is 32.4 % (1121) of all examined. Vitamin D deficiency was detected in 67.1 % of the examined. The level of 25(OH)D in the blood serum of residents is on average 75 nmol/L, which is the upper limit of vitamin D deficiency. Vitamin D deficiency is extremely common among residents of this region of the Russian Federation (67.1 %).

scholarly journals Association of Serum Level of 25-Hydroxy Vitamin D Deficiency and Pulmonary Function in Healthy Individuals

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Maryam Moghaddassi ◽  
Marzieh Pazoki ◽  
Ahmad Salimzadeh ◽  
Tayeb Ramim ◽  
Zahra Alipour
Keyword(s):  
Vitamin D ◽  
Serum Level ◽  
Pulmonary Function ◽  
Vitamin D Deficiency ◽  
Forced Vital Capacity ◽  
Vital Capacity ◽  
Serum Levels ◽  
Forced Expiratory Volume ◽  
Healthy Individuals ◽  
25 Hydroxy Vitamin D

Background. Besides the extensive regulatory role in growing number of biologic processes, vitamin D has been recently considered essential for lungs function as well as protective against exacerbation of chronic obstructive pulmonary diseases. We assessed the correlation between vitamin D serum levels with pulmonary function in healthy individuals. Methods. In a cross-sectional study, healthy volunteer (n=92) participants underwent the following laboratory procedures: a blood test, a 24-hour urine collection test, and the serum level of 25-hydroxy vitamin D before undergoing spirometry. Linear correlation coefficient was calculated to detect the association between serum level of 25-hydroxy vitamin D and pulmonary volumes. Results. The mean age of participants was 39.95±9.98 years. 48% of participants showed different levels of 25-hydroxy vitamin D deficiency. We recognized a consistent direct positive correlation between serum levels of 25-hydroxy vitamin D and lung function volumes. The coefficient for forced vital capacity, forced expiratory volume in 1 second, forced expiratory flow 25–75%, and forced expiratory volume in 1 second/forced vital capacity ratio were 0.610, 0.509, 0.454, and 0.551, respectively. Conclusions. Our findings suggest correlation between higher serum levels of 25-hydroxy vitamin D and improved pulmonary function. Accordingly, supplemental vitamin D might significantly improve treatment response.

An update on the association of vitamin D deficiency with common infectious diseases

2015 ◽  
Vol 93 (5) ◽  
pp. 363-368 ◽  
Author(s):  
Richard R. Watkins ◽  
Tracy L. Lemonovich ◽  
Robert A. Salata
Keyword(s):  
Vitamin D ◽  
Infectious Diseases ◽  
Vitamin D Deficiency ◽  
Health Care Facilities ◽  
Future Research ◽  
Therapeutic Implications ◽  
Increased Risk ◽  
Immunodeficiency Virus ◽  
Recent Developments ◽  
Future Research Directions

Vitamin D plays an important role in modulating the immune response to infections. Deficiency of vitamin D is a common condition, affecting both the general population and patients in health care facilities. Over the last decade, an increasing body of evidence has shown an association between vitamin D deficiency and an increased risk for acquiring several infectious diseases, as well as poorer outcomes in vitamin D deficient patients with infections. This review details recent developments in understanding the role of vitamin D in immunity, the antibacterial actions of vitamin D, the association between vitamin D deficiency and common infections (like sepsis, pneumonia, influenza, methicillin-resistant Staphylococcus aureus, human immunodeficiency virus type-1 (HIV), and hepatitis C virus (HCV)), potential therapeutic implications for vitamin D replacement, and future research directions.

scholarly journals Low Level of Vitamin D is Correlated with High C-Reactive Protein (CRP) and Disease Activity in Indonesian Juvenile Idiopathic Arthritis (JIA) Patients

2020 ◽  
Vol 12 (2) ◽  
pp. 149-56
Author(s):  
Desy Wulandari ◽  
Wisnu Barlianto ◽  
Tita Luthfia Sari
Keyword(s):  
Vitamin D ◽  
Juvenile Idiopathic Arthritis ◽  
Serum Level ◽  
Disease Activity ◽  
Vitamin D Deficiency ◽  
Control Group ◽  
Healthy Children ◽  
C Reactive Protein ◽  
Low Level ◽  
Reactive Protein

BACKGROUND: Vitamin D plays essential role in the regulation of inflammation, such as in pathogenesis of Juvenile Idiopathic Arthritis (JIA). Vitamin D deficiency has been reported among JIA patients, but there were conflicting results regarding the correlation with disease activity. This study aimed to assess vitamin D serum level and its correlation with C-Reactive Protein (CRP) and disease activity in JIA patients.METHODS: Children who were diagnosed with JIA according to International League of Associations for Rheumatology (ILAR) criterias were enrolled as JIA group subjects, while age and sex-matched healthy children were enrolled as the control group subjects. Vitamin D and CRP serum level were measured. Disease activity of JIA patients was calculated by Juvenile Arthritis Disease ActivityScore-27 (JADAS-27).RESULTS: Vitamin D serum level was lower in the JIA group compared to the healthy control group (p=0.000). Among 26 JIA patients, 61.5% were deficient, 30.8% were insufficient, and 7.7% had normal vitamin D. No significant different in CRP level between vitamin D group (p=0.441), but there was significant different in JADAS-27 (p=0.001). The mean of CRP and JADAS-27 were found highest in vitamin D deficiency group. Vitamin D serum level was negatively correlate with CRP (p=0.021, r=-0.452) and JADAS-27 (p=0.001 r=-0.595).CONCLUSION: Low level of vitamin D in JIA patients was inversely related to higher CRP and disease activity,suggesting that vitamin D supplementation could be havepotential role in JIA treatment.KEYWORDS: vitamin D, CRP, disease activity,JADAS-27, JIA

scholarly journals ACTUAL VIEW ON THE VITAMIN D EFFECT ON WOMEN’S HEALTH

2019 ◽  
Vol 6 (2) ◽  
pp. 73-79 ◽  
Author(s):  
T. N Savchenko ◽  
I. A Dergacheva ◽  
Lyudmila A. Ozolinya
Keyword(s):  
Vitamin D ◽  
Cell Proliferation ◽  
Gestational Diabetes ◽  
Autoimmune Diseases ◽  
Pregnant Women ◽  
Cardiovascular System ◽  
Vitamin D Deficiency ◽  
Inverse Correlation ◽  
Acquired Immunity ◽  
Pathological Conditions

According to last research, receptors for vitamin D are found in many organs and tissues. Vitamin D deficiency leads to the development of pathological conditions in children and adults. The non-classical effects of vitamin D are important in modulating congenital and acquired immunity, regulating cell proliferation, in the progress of diabetes, the pathology of the cardiovascular system, and autoimmune diseases. The inverse correlation between the level of 25(OH)D3 and the incidence of cancer has been determined. Vitamin D affects the course of pregnancy, and the decidual and placental tissues synthesize 1.25(OH)2D. Vitamin deficiency is found in pregnant women with preeclampsia and gestational diabetes. Timely diagnosis and adequate correction of the level of vitamin D in the blood reduces the risk of developing diseases.

scholarly journals Association Between Vitamin D Deficiencies in Sarcoidosis with Disease Activity, Course of Disease and Stages of Lung Involvements

2018 ◽  
Vol 37 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Arda Kiani ◽  
Atefeh Abedini ◽  
Ian M. Adcock ◽  
Maryam Sadat Mirenayat ◽  
Kimia Taghavi ◽  
...  
Keyword(s):  
Vitamin D ◽  
Serum Level ◽  
Pulmonary Function ◽  
Disease Activity ◽  
Vitamin D Deficiency ◽  
Calcium Level ◽  
Significant Negative Correlation ◽  
Urine Calcium ◽  
Chronic Respiratory Diseases ◽  
25 Hydroxy Vitamin D

SummaryBackground:Despite negative association between 25-hydroxy vitamin D and incidence of many chronic respiratory diseases, this feature was not well studied in sarcoidosis. Current study investigated the association between 25-hydroxy vitamin D deficiency with sarcoidosis chronicity, disease activity, extra-pulmonary skin manifestations, urine calcium level and pulmonary function status in Iranian sarcoidosis patients. Results of this study along with future studies, will supply more effective programs for sarcoidosis treatment.Methods:Eighty sarcoidosis patients in two groups of insufficient serum level and sufficient serum level of 25-hydroxy vitamin D were studied. Course of sarcoidosis was defined as acute and chronic sarcoidosis. Pulmonary function test (PFT) was assessed by spirometry. Skin involvements were defined as biopsy proven skin sarcoidosis. 24-hour urine calcium level was used to specify the disease activity. Stages of lung involvements were obtained by CT-scan and chest X-ray. The statistical analyses were evaluated using Statistical Package for the Social Sciences.Results:A significant negative correlation was obtained between vitamin D deficiency in sarcoidosis patients and disease chronic course and stages two to four of lung involvements. Considering other parameters of the disease and vitamin D deficiency, no significant correlation was detected.Conclusions:In conclusion, results of the current study implies in the role of vitamin 25(OH)D deficiencies in predicting the course of chronic sarcoidosis. Furthermore, it was concluded that vitamin 25(OH)D deficiency can direct pulmonary sarcoidosis toward stage 2–4 of lung involvements.

scholarly journals 25(OH)D Inadequacy Has Different Pathway with VEGF in Increases the Risk of Severe Preeclampsia

2015 ◽  
Vol 23 (2) ◽  
pp. 42
Author(s):  
Hanifa Erlin Damayanti ◽  
Aditiawarman Aditiawarman
Keyword(s):  
Vitamin D ◽  
Serum Level ◽  
Vitamin D Deficiency ◽  
Sandwich Elisa ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Chemiluminescent Immunoassay ◽  
Risk Of Preeclampsia

Objectives: To identify in vivo correlation between 25(OH)D and VEGF in severe preeclampsia.Materials and Methods: A case control, cross sectional study of 36 pregnant women which consist of 18 patients with preeclampsia and 18 patients as control with gestational age-matched. We perform 25(OH)D serum examination by chemiluminescent immunoassay (CLIA) and VEGF serum examination by sandwich ELISA to all patients.Results: All patients are in 25(OH)D insufficiency and deficiency state. Both maternal 25(OH)D and VEGF levels were inversely associated with the risk of preeclampsia (both P<0.05). There is no correlation between 25(OH)D serum level and VEGF serum level (P=0,629).Conclusion: Maternal vitamin D deficiency is associated with increased preeclampsia risk. However, our data do not support the hypothesis that the association between vitamin D deficiency and preeclampsia is mediated by impaired level of VEGF.

scholarly journals To the question of the pathogenetic mechanisms of the influence of obesity on the level of vitamin D

2021 ◽  
Vol 18 (2) ◽  
pp. 169-174
Author(s):  
L. A. Suplotova ◽  
V. A. Avdeeva ◽  
L. Y. Rozhinskaya
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Independent Risk Factor ◽  
Transcriptional Activity ◽  
Negative Impact ◽  
Modern Society ◽  
Medical Community ◽  
Urgent Problem ◽  
Pathological Conditions ◽  
External Causes

The influence of obesity on human health, as a multifactorial and multigenic disorder, is a rather complex, interdisciplinary and at the same time extremely urgent problem of modern society. Vitamin D deficiency is one of the consequences of obesity that negatively affects a person’s life expectancy. Vitamin D deficiency is rightfully considered a silent, non-infectious metabolic pandemic of the 21st century. Its significant role in the functioning of the human body is deep and multifaceted, since vitamin D is an integral regulator of the transcriptional activity of genes that control 3–5% of the human genome. There are ongoing discussions among experts in the medical community about the negative impact of obesity on 25 (OH) D levels, and the opposite hypothesis is also being discussed, where vitamin D deficiency is considered an independent risk factor for obesity. Both external causes of the formation of vitamin D deficiency against the background of excessive deposition of adipose tissue and internal metabolic processes underlying the pathogenetic association are analyzed two pathological conditions.

scholarly journals Vitamin D and Platelets: A Menacing Duo in COVID-19 and Potential Relation to Bone Remodeling

2021 ◽  
Vol 22 (18) ◽  
pp. 10010
Author(s):  
Francesca Salamanna ◽  
Melania Maglio ◽  
Maria Sartori ◽  
Maria Paola Landini ◽  
Milena Fini
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Bone Remodeling ◽  
Bone Health ◽  
Feedback Loop ◽  
Mineral Metabolism ◽  
Bone Fragility ◽  
Preliminary Information ◽  
Pathological Conditions ◽  
Global Data

Global data correlate severe vitamin D deficiency with COVID-19-associated coagulopathy, further suggesting the presence of a hypercoagulable state in severe COVID-19 patients, which could promote thrombosis in the lungs and in other organs. The feedback loop between COVID-19-associated coagulopathy and vitamin D also involves platelets (PLTs), since vitamin D deficiency stimulates PLT activation and aggregation and increases fibrinolysis and thrombosis. Vitamin D and PLTs share and play specific roles not only in coagulation and thrombosis but also during inflammation, endothelial dysfunction, and immune response. Additionally, another ‘fil rouge’ between vitamin D and PLTs is represented by their role in mineral metabolism and bone health, since vitamin D deficiency, low PLT count, and altered PLT-related parameters are linked to abnormal bone remodeling in certain pathological conditions, such as osteoporosis (OP). Hence, it is possible to speculate that severe COVID-19 patients are characterized by the presence of several predisposing factors to bone fragility and OP that may be monitored to avoid potential complications. Here, we hypothesize different pervasive actions of vitamin D and PLT association in COVID-19, also allowing for potential preliminary information on bone health status during COVID-19 infection.

scholarly journals Association Of Vitamin D Deficiency With Risk Factors In Postmenopausal Women

2021 ◽  
Vol 03 (04) ◽  
pp. 70-77
Author(s):  
N.M. Inoyatova ◽  
Keyword(s):  
Risk Factors ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Postmenopausal Women ◽  
Geographic Location ◽  
Overweight And Obesity ◽  
Pathological Conditions ◽  
Age Related ◽  
Oncological Diseases ◽  
Basic Level

In conditions of age-related decrease in sex hormones and a number of pathological conditions and diseases in postmenopausal women, there is a deficiency of D hormone. In our country, the geographic location of which is below northern latitude and sufficient ultraviolet radiation, an insufficient content of vitamin D is seen in postmenopausal women. There are a lot of risk factors leading to vitamin D deficiency - the presence of smog and dust in cities, insufficient consumption of vitamin-fortified foods, the presence of problems with the gastrointestinal tract and excretory system and a number of others. One of the important factors that reduce vitamin storage is overweight and obesity, especially in combination with old age, when all absorption processes are reduced. The aim of our research was to study risk factors in women with vitamin D deficiency with subsequent correction of the deficiency state. We examined the level of total 25 (OH) D in the blood serum in 46 postmenopausal women, and identified risk factors. Vitamin D deficiency was detected in 86.96% of women, and its deficiency was registered in 10.87%. At the same time, a pronounced vitamin deficiency was not registered in any patient. Overweight was registered in 32.6%, obesity of varying degrees in 26.1%. Given the indicators, recommendations were given for correcting vitamin D deficiency. All postmenopausal women, especially those with risk factors for deficiency, are recommended to determine the basic level of vitamin D. In case of deficiency, drug correction is recommended to reduce the risk of cardiovascular and oncological diseases.

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