scholarly journals Vitamin D and reproductive health

2020 ◽  
Vol 66 (5) ◽  
pp. 96-101
Author(s):  
I. V. Gorelova ◽  
P. V. Popova ◽  
M. V. Rulev
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Pregnancy Rate ◽  
Clinical Studies ◽  
Assisted Reproductive Technologies ◽  
Reproductive Technologies ◽  
Male Rats ◽  
Vitamin D Levels

Vitamin D insufficiency and deficiency in women with infertility is more common than in the population. However, we still do not know the exact mechanisms for the participation of vitamin D in the regulation of reproductive function. The purpose of this study is to analyze actual literature data on the role of vitamin D in the regulation of reproductive system and its influence on using of assisted reproductive technologies for the treatment of infertility. A search was carried out for literary sources published in the NSBI database PubMed, Medline, and others with a search depth of up to 20 years. 135 sources on this topic were studied, of which 54 were included in the analysis. The review presents data obtained in animal studies, in vitro and in clinical studies. Thus, the absence of vitamin D resulted in a dramatical decrease in fertility in both female and male rats and mice, due to the development of hypocalcemia. In vitro studies describe its involvement in the receptive transformation of the endometrium and in the regulation of the immune response during embryo implantation. However, clinical studies often show conflicting results. There is no unequivocal data on the effect of vitamin D levels on spermogram parameters, but a decrease in the pregnancy rate was shown when ovulation was induced in pairs, where a vitamin D deficiency was revealed in men. A meta-analysis published in 2017 showed a decrease in the pregnancy and live birth rate in women with low levels of vitamin D after the use of assisted reproductive technologies (ART). It was not possible to establish whether this decrease depends on oocyte quality or endometrium. There is an opportunity that the effect of vitamin D deficiency on fertility will not come with all forms of infertility. For example, in women with anovulation due to polycystic ovary syndrome, vitamin D deficiency is demonstrated to decrease pregnancy rate in ovulation induction cycles and in ART. Such relationship was not found in women with unexplained infertility.Thus, the role of vitamin D in the pathogenesis of infertility requires further study, as well as the possibilities of therapy in order to increase the effectiveness of infertility treatment methods and assisted reproductive technology programs.

Role of Vitamin D in Autism Spectrum Disorder

2020 ◽  
Vol 25 (41) ◽  
pp. 4357-4367 ◽  
Author(s):  
Loai Alzghoul
Keyword(s):  
Autism Spectrum Disorder ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Autism Spectrum ◽  
Vitamin D Supplementation ◽  
Spectrum Disorder ◽  
Vitamin D Levels

: Autism spectrum disorder (ASD) is a pervasive developmental disorder with heterogeneous etiology. Vitamin D can function as a fat-soluble vitamin as well as a hormone, and can exert its effect through both genomic and non-genomic mechanisms. In the last decades, several studies have examined the relationship between vitamin D levels and ASD. These studies demonstrated that low vitamin D status in early development has been hypothesized as an environmental risk factor for ASD. Both in vivo and in vitro studies have demonstrated that vitamin D deficiency in early life can alter brain development, dysregulates neurotransmitter balance in the brain, decreases body and brain antioxidant ability, and alters the immune system in ways that resemble pathological features commonly seen in ASD. In this review, we focused on the association between vitamin D and ASD. In addition, the above-mentioned mechanisms of action that link vitamin D deficiency with ASD were also discussed. Finally, clinical trials of vitamin D supplementation treatment of ASD have also been discussed.

P–662 Study on D-vitamin, AMH and insulin interrelation in Polycystic Ovary Syndrome (PCOS) patients

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
A Coc. Lizarraga ◽  
S Lindenberg ◽  
G Juu. Almind ◽  
F Lindenberg
Keyword(s):  
Insulin Resistance ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Serum Vitamin ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Group A ◽  
D Values ◽  
Group B

Abstract Study question Is vitamin D deficiency more prevalent in PCOS patients? Is there a link between vitamin D levels and metabolic status in PCOS subjects? Summary answer An inverse relationship between vitamin D levels and metabolic status was demonstrated and it is thought to be responsible of its pathogenesis. What is known already PCOS is a multifactorial condition, characterised by failure in oogenesis and anovulation. Obesity is a common condition linked to its clinical features and studies have reported inverse associations between BMI and severity of the condition. Furthermore, 67–85% of PCOS patients have vitamin D deficiency. Low levels of vitamin D have been found to be closely related to insulin resistance, obesity, or hyperandrogenism and there is a significant association between serum vitamin D levels and reproductive function. Other factors such as AMH have also been described as possibly involved in the pathophysiology. Study design, size, duration We performed a retrospective, analytical and observational study in the Copenhagen Fertility Center. Patients referred with cycle abnormalities, hirsutism, and infertility were evaluated. A total of 778 women were enrolled consecutively from January 2019 to October 2020. Subjects who had major medical disorders were excluded. We selected those in which vitamin D was measured in the baseline analysis selecting a total of 396 patients. The further analysis has been carried out from 100 randomly selected patients. Participants/materials, setting, methods Blood samples were drawn after overnight fasting. They were all assayed in the same laboratory. Biochemical parameters were analyzed using descriptive statistics. Same parameters were studied after dividing into vitamin D deficiency group or optimal levels using a multiple t-test. Correlation between variables was determined. Graphpad Prism program version 8 was used to perform the calculations. The level of statistical significance was set at P-value < 0.05. Main results and the role of chance A total of 100 subjects fulfilling the inclusion criteria were selected randomly from 396 PCOS women. Serum vitamin D concentrations were highly variable ranging from 16 nmol/L to 175 nmol/L. The prevalence of vitamin D deficiency was 24% and 41% of the subjects were classified as vitamin D insufficient. Only 35% of our patients had optimal vitamin D values. We compared data between the group with optimal values of vitamin D (Group A) versus the group with insufficient/deficient vitamin D values (Group B). We found statistical difference between groups in PTH values, being notably higher in group B compared with group A. Despite no statistically significant difference was obtained, it is important to highlight that the mean of SHBG was lower in group B and the mean of androstenedione, AMH, FAI and HOMA-IR were much higher in this group as well. Following the HOMA-IR criteria, 55% of patients had insulin resistance. Specifically, 26% had moderate insulin resistance and 29% severe insulin resistance. Levels of vitamin D were negatively correlated with FAI, AMH and HOMA-IR and positively correlated with HDL-Cholesterol and SHBG. Statistically significant differences were evidenced in the correlation between vitamin D and FAI and SHBG. Limitations, reasons for caution This is a retrospective observational study on a consecutive admitted patient group with a lack of a control group. Another limitation is the small sample size. It is difficult to generalize with other degrees of severity. We didn’t assess seasonal variability or if they were taking any vitamin D supplementation. Wider implications of the findings: Properly randomized clinical trials are mandatory to achieve more conclusive results about the role of vitamin D. Available evidence is promising but not sufficient to draw final conclusions. The aim is to better understand the pathophysiology of the condition and the factors involved and to find new target treatments. Trial registration number 1

scholarly journals 0809 A Randomized Double-blind, Placebo Controlled Trial With Cross-over, To Assess The Efficacy Of Correcting Vitamin D Deficiency In Improving The Symptoms Of Restless Legs Syndrome (RLS)

SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A307-A308
Author(s):  
J Wong ◽  
D Gupta ◽  
A Nadhim ◽  
S Bhat ◽  
P Polos
Keyword(s):  
Vitamin D ◽  
Iron Deficiency ◽  
Vitamin D Deficiency ◽  
Controlled Trial ◽  
Activity Count ◽  
Double Blind ◽  
Vitamin D Levels ◽  
Effect Of Treatment ◽  
B Vitamin

Abstract Introduction Recent studies have shown an association of low Vitamin D levels and severity of RLS symptoms. However, effect of treatment of Vit D deficiency on RLS symptoms was not reported, nor were other exacerbating factors for RLS such as iron deficiency or OSA addressed in prior studies, but have been addressed in our study. Methods This is an ongoing study at the JFKMC Sleep Clinic. Eligible Patients with RLS include those with vitamin D 25,hydroxy deficiency (<20 ng/ml), or insufficiency (<30 ng/ml). Such patients will be enrolled in the study after comorbid conditions like iron deficiency and OSA have been adequately corrected. Randomization of the patients will be done by the JFK pharmacy so the patient and provider are blinded to the substance. Substance A or B could be either Vitamin D3 Capsule 50,000 IU, or placebo. Each patient takes A for 6 weeks and then crosses over to B for 6 weeks. Weekly iRLS questionnaires will be collected. Actiwatch Device, to assess activity count per minute, will be worn on the ankle at night for one week time periods: at baseline, at end of 6 weeks of taking A and then at the end of 6 weeks of taking B. Vitamin D levels will also be assessed after each course of supplementation and correlated with subjective and objective findings. Results Between July 7, 2019 to current, 50 consecutive patients seen in sleep clinic with RLS were assessed for vitamin D levels. Ages ranged from 23-86 years. 27 patients were female (54%). Two patients met inclusion criteria and have started their 13-week study. Conclusion This study will help to establish the role of Vitamin D deficiency as a risk factor for RLS, independent of ferritin levels, and comorbid OSA, in affected individuals. This may help to discover a potentially treatable form of RLS. Support No financial support.

scholarly journals VITAMIN D TRENDS IN THE PEDIATRIC ORTHOPAEDIC POPULATION: A SURVEY

2019 ◽  
Vol 7 (3_suppl) ◽  
pp. 2325967119S0013
Author(s):  
Kevin A. Williams ◽  
Michael Horan
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Compliance Rate ◽  
Vitamin D Supplementation ◽  
Chi Square ◽  
Potential Health ◽  
Vitamin D Levels ◽  
Orthopaedic Literature ◽  
Pediatric Orthopaedic

Background: Vitamin D deficiency is a global issue, affecting adults and children of all ages, races and genders. Within the last decade, multiple studies have demonstrated the potential health benefits of vitamin D supplementation including improved bone health, reduced fracture risk, protection from autoimmune disease, and decreased cancer risk. Because of the prevalence of vitamin D deficiency in pediatric populations despite recent evidence of increased vitamin D supplementation in the US, our goal is to assess the knowledge of current vitamin D recommendations among Pediatric Society of North America (POSNA) members. It is our purpose to use the data to increase awareness and understanding of vitamin D amongst all pediatric providers. Methods: Our survey was distributed to 1316 POSNA members via a series of 2 email requests in which they were invited to participate in the survey on the Survey Monkey website. Their participation was entirely voluntary and they agreed to participate by responding positively on the first page of the survey. The data was depersonalized and analyzed via chi square and Fisher’s exact testing. Results: 395 responses were recorded. 9 participants opted out of the survey. 69% of participants rated their vitamin D knowledge as fair to good. 68% of participants have been in practice over ten years and represented most US geographic regions fairly equally. Most estimate that over 25% of their practice is vitamin D deficient with about a 50% compliance rate of supplementation. Over 30% of participants feel vitamin D management is mostly the role of the pediatrician, however 64% of participants discuss or check vitamin D levels in their practice for patients with repeat fractures, medical comorbidities, or nonunions most commonly. Conclusion: Survey participants demonstrated a wide variety of responses indicating their understanding of vitamin D testing and supplementation. Although providers estimate a high deficiency rate, many do not routinely check vitamin D. When they do check, there is no standard indication for testing or supplementation and many believe this to be the role of the pediatrician or endocrinologist. More studies are needed to provide a standardized protocol for vitamin D testing/supplementation in the pediatric orthopaedic literature.

Correlation between vitamin D deficiency and metastatic breast carcinoma in a predominantly Hispanic population: A retrospective study.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e12553-e12553
Author(s):  
Saurabh Deepak Chitnis ◽  
Andrea M. Popescu-Martinez
Keyword(s):  
Breast Cancer ◽  
Vitamin D ◽  
Metastatic Breast Cancer ◽  
Relative Risk ◽  
Vitamin D Deficiency ◽  
Active Form ◽  
Metastatic Breast ◽  
Breast Cancer Cell Lines ◽  
Vitamin D Levels

e12553 Background: There have been numerous studies conducted linking Vitamin D deficiency to various cancers, including cancers of the breast. Studies associating Vitamin D deficiency and Breast cancer have shown mixed results in patients with no clear consensus. Recently published in vitro studies have shown that the active form of Vitamin D can inhibit the metastatic capability of breast cancer cell lines to bone. Based on this we aimed to elucidate whether there exists any correlation between Vitamin D deficiency at diagnosis and Metastatic breast cancer. Methods: Retrospective analysis of the EMR for women diagnosed with breast cancer and enrolled in Oncology database seen at NYMC-Metropolitan Hospital Center from 2010-2016 was done. Patients were grouped into either breast cancer with metastases or without metastases and their Vitamin D levels at diagnosis were reviewed. Patients with 25- Hydroxy Vitamin D levels measured within one year of diagnosis of breast cancer were included for the study. Study was planned from 2010-2016 specifically as Vitamin D levels for patients were not monitored as frequently prior to 2010. Results: From total of 102 patients who started follow up with Oncology clinic during the study time period, 2 were referred to our center for further management with diagnosis made prior to 2010 and were not included in the study. Out of the 100 patients considered, 58 patients had Vitamin D levels measured within a year of diagnosis of breast cancer and were included in the study. 70% of the population was Latino/Hispanic. The table represents the results of the study. Odds ratio for a patient with Vit D deficiency to develop metastatic breast cancer was 0.92 and relative risk was calculated to be 0.93. Conclusions: Based on above results, the outcome was similar in both groups. The odd’s ratio and the relative risk imply that there was no difference evidenced between both groups. These findings signify that there was no direct correlation between Metastatic breast cancer and Vitamin D deficiency at time of diagnosis in the population seen at our center. [Table: see text]

The role of vitamin D in the development of cardiac arrhythmias in locomotive drivers

2021 ◽  
Vol 61 (3) ◽  
pp. 202-207
Author(s):  
Natalya V. Orlova ◽  
Anastasiya Ya. Starokozheva ◽  
Elena A. Zhidkova ◽  
Konstantin G. Gurevich
Keyword(s):  
Vitamin D ◽  
Sudden Death ◽  
Vitamin D Deficiency ◽  
Cardiac Arrhythmias ◽  
Heart Defects ◽  
Heart Rhythm ◽  
Thromboembolic Complications ◽  
Heart Rhythm Disorders ◽  
Vitamin D Levels

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.

Role of Vitamin D in the Management of COVID-19 Patients Regarding Morbidity and Mortality

2021 ◽  
Vol 15 (6) ◽  
pp. 1231-1233
Author(s):  
A. W. Khan ◽  
H. T. Hussain ◽  
Z.U. Mustafa ◽  
M. A. Qamar ◽  
M. A. Qamar ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Body Mass ◽  
Morbidity And Mortality ◽  
P Value ◽  
Mortality And Morbidity ◽  
Severe Vitamin ◽  
Vitamin D Levels

Aim: To determine the role of vitamin D in the management of COVID-19 patients regarding morbidity and mortality. Study Design: Prospective/Observational Place and Duration: Departments of Medicine & Pulmonology, Allama Iqbal Memorial Teaching Hospital, Sialkot and Department of Medicine, Sughra Shafi Medical Complex Narowal from 1st November 2020 to 30th April 2020. Methodology: One hundred and sixty patients of both genders diagnosed to have COVID-19, were enrolled. Patient’s ages were ranging from 17 to 70 years. The detailed demographics such as age, sex, and body mass index were recorded. 5 ml blood samples were taken from all the patients to check their vitamin D levels. Severe Vitamin D deficiency was defined as 25(OH)D <25 nmol/L (10 ng/dl). Association between mortality and morbidity was examined. Results: Ninety (56.25%) were males while 70 (43.75%) were females with mean age 40.15±17.37 years. Mean body mass index of patients was 24.16±7.26 kg/m2. Severe vitamin D deficiency was observed in 80 (50%) patients. Mortality found in 30 (18.75%) patients. Frequency of morbidity was among 66 (41.25%) patients. Patients with severe vitamin D deficiency had high rate of mortality 20 (25%) and morbidity 50 (62.5%) as compared to patients with no vitamin D deficiency had 10 (8%) mortality and 16 (20%) morbidity. A significant association was observed between severe vitamin D deficiency regarding morbidity and mortality among patients with covid-19 disease with p-value <0.05. Conclusion: The vitamin-D has strongest relationship among patients with covid-19 disease to reduce mortality and morbidity. Keywords: Morbidity, COVID-19, Vitamin D, Mortality

Clinical and immunological aspects of treatment women with repeated in-vitro fertilization failure

2014 ◽  
Vol 63 (5) ◽  
pp. 89-95
Author(s):  
Marina Ivanovna Krivonos ◽  
Marina Sabirovna Zaynulina ◽  
Sergey Vladimirovich Chepanov ◽  
Alexandr Vasilevich Selutin ◽  
Sergey Alekseevich Selkov ◽  
...  
Keyword(s):  
Assisted Reproductive Technologies ◽  
Reproductive Technologies ◽  
Implantation Failure ◽  
Fertilization Failure ◽  
Vitro Fertilization ◽  
Repeated Implantation Failure ◽  
Assisted Reproductive Treatment ◽  
Immune Pathology

This review presents the existing literature concerning repeated implantation failure in assisted reproductive technologies. There are also discussed the role of immune pathology in the occurrence of repeated implantation failure in assisted reproductive treatment and the prospects of improving implantation rates with intravenous immunoglobulin in women with different immune pathologies.

P–683 Correlation of vitamin D deficiency with anti-Mullerian hormone (AMH) among infertile women in comparison to fertile women in a tertiary health facility in North-Western Nigeria

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
B Lawal ◽  
A Adesiyun ◽  
M Manu ◽  
J El-Bashir ◽  
A Olorukooba ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Reproductive Age ◽  
P Value ◽  
Infertile Women ◽  
Reproductive Age Women ◽  
Vitamin D Levels ◽  
North Western ◽  
Fertile Women

Abstract Study question is there correlation between Vitamin D Deficiency and AMH levels in infertile and fertile women? Summary answer there is no significant correlation between Vitamin D deficiency and AMH levels in both infertile and fertile women What is known already Vitamin D deficiency and insufficiency is a global health problem affecting over a billion people with higher prevalence among reproductive-age women, and blacks. Vitamin D is well known to play significant role in calcium-phosphate homeostasis and bone metabolism, however, recent studies have demonstrated diverse expression of vitamin D receptors in reproductive organs. This suggest the probable role of vitamin D in reproductive physiology and fertility. The pathogenesis of vitamin D in infertility is poorly understood, but thought to involve hypothalamo-pituitary axis, ovarian folliculogenesis and uterine implantation. Most studies are done in Assisted Reproduction Technology and in developed countries Study design, size, duration A case-control study that involved 128 consecutively consenting women within the reproductive age group; 64 infertile women as the cases and 64 age and body mass index (BMI) matched fertile women as the controls. The study was conducted over a period of six (6) months Participants/materials, setting, methods The study was conducted in Obstetrics and Gynaecology and Chemical pathology departments of Ahmadu Bello University Teaching Hospital Zaria, a tertiary hospital in North-Western Nigeria. It involved all cases of female-factor infertility as cases, while the controls were fertile women from 6 weeks postpartum to 1 year. Venous blood samples were assayed for serum 25(-hydroxy) vitamin D and AMH levels using Enzyme-Linked Immunosorbent Assay (ELISA) and data analysed with level of significance set as &lt; 0.05 Main results and the role of chance The mean ± standard deviation (SD) of serum Vitamin D levels in the infertile women and fertile women were 17.01 ± 7.61ng/ml and 11.34 ± 6.12ng/ml respectively, significantly higher in the infertile women (p-value &lt;0.000). The prevalence of Vitamin D deficiency (&lt;20ng/ml) was found to be significantly higher in the fertile women compared to infertile women (89.1% versus 68.8%; p-value 0.007). Vitamin D levels were found to be positively correlated with age (r 0.374; p-value 0.002) and parity (r 0.338; p-value 0.006). There was no association between vitamin D with type of, and causes of infertility. Vitamin D deficient women were found to be 6.5 times less likely to be infertile than non-deficient women (aOR 95% confidence interval 1.96–21.55; p-value 0.002). There was no significant correlation between vitamin D and AMH levels in vitamin D deficient women of both study groups (rs 0.180; p-value 0.242 and rs 0.088; p-value 0.521). Interestingly, there was significant relationship between AMH levels and causes of infertility (p-value 0.001), with higher levels of AMH found in infertile women with polycystic ovarian syndrome Limitations, reasons for caution There is no consensus on the cut-off values for vitamin D levels as it relates to fertility, and no reference values for vitamin D deficiency and AMH levels in study area. The sample size was limited by cost, and the study was conducted in a single study area Wider implications of the findings: The vitamin D levels in women with infertility was low but yet not significantly correlated with AMH. Overall, prevalence of vitamin D deficiency among reproductive-age women was found high. There is need for life-style and dietary modifications. Further researches are needed to ascertain the effect of vitamin D on fertility. Trial registration number Not applicable

scholarly journals Role Of Vitamin D And Adipose Tissue Hormones In Women With Reproductive Disorders

Folia Medica ◽  
2015 ◽  
Vol 57 (1) ◽  
pp. 5-10
Author(s):  
Presiyana V. Nyagolova ◽  
Mitko D. Mitkov ◽  
Maria M. Orbetsova
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Polycystic Ovary ◽  
Serum Vitamin ◽  
Reproductive Function ◽  
Reproductive Disorders ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
The Relationship

Abstract The role of vitamin D beyond that it plays in bone metabolism and calcium homeostasis has been lately quite emphasized. In this respect, vitamin D deficiency has been associated with higher risk of cardiovascular disease, metabolic syndrome, and reproductive disorders. Growing evidence has suggested that vitamin D deficiency is implicated in the pathogenesis of insulin resistance and the development of metabolic disorders in the polycystic ovary syndrome. The goal of the review is to present contemporary concepts of the relationship between hormones affecting the metabolic body status, serum vitamin D levels and the reproductive function.

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