Role of vitamin D and sFlt-1/PlGF ratio in the development of early- and late-onset preeclampsia

AbstractThe imbalanced production of placental biomarkers and vitamin D deficiency have been proposed as risk factors for the development of preeclampsia (PE). However, little is known about the relationship between them and their role in early- versus late-onset PE. The objectives were to assess the role of 25-hydroxyvitamin D [25(OH)D] concentrations and the soluble fms-like tyrosine kinase 1 (sFlt-1) to placental growth factor (PlGF) ratio in the development of early- and late-onset PE; and to evaluate the relationship between 25(OH)D and the biomarkers.A retrospective, full-blinded cohort study was conducted at the Obstetric Emergency Service of a tertiary care hospital. Pregnant women (n=257) attending obstetric triage with suspicion of PE were included. sFlt-1, PlGF and 25(OH)D concentrations were measured by electrochemoluminescence (ECLIA) immunoassay and pregnancy outcome (development of PE) was registered from patients records.PE women showed lower 25(OH)D concentrations at clinical presentation than non-PE women (median: 35.0 nmol/L and 39.6 nmol/L, respectively; p=0.027). Women with 25(OH)D levels <50 nmol/L experienced an increased risk of developing late-onset PE [odds ratio (OR) 4.6, 95% confidence interval (CI) 1.4–15], but no association was found for early-onset PE. However, a sFlt-1/PlGF ratio above the corresponding cutpoints increased the risk of developing both early- and late-onset PE [ORs 58 (95% CI 11–312) and 12 (95% CI 5.0–27), respectively]. No association was found between 25(OH)D levels and sFlt-1/PlGF ratio.Low vitamin D status in women with suspected late-onset PE increases the risk of imminent development of the disease.

Download Full-text

IgG index and not serum 25-hydroxyvitamin D is associated with age at onset of multiple sclerosis.

10.1101/2021.05.31.21258017 ◽

2021 ◽

Author(s):

Pernilla Stridh ◽

Ingrid Kockum ◽

Jesse Huang

Keyword(s):

Multiple Sclerosis ◽

Vitamin D ◽

Random Distribution ◽

Age At Onset ◽

Disease Onset ◽

Hydroxyvitamin D ◽

Increased Risk ◽

Igg Index ◽

25 Hydroxyvitamin D ◽

The Relationship

Background Vitamin D deficiency is associated with an increased risk of multiple sclerosis (MS). However, its effect on the age of disease onset remains unclear. This study examines the relationship between serum 25 hydroxyvitamin D (25(OH)D) levels and age of first symptom onset among recently diagnosed MS patients. Method Serum 25(OH)D was measured from forty MS patients sampled near disease onset. After correcting seasonal variability, a multivariable linear regression was used to examine associations to age at onset. Results Serum 25(OH)D was not correlated with age at onset (P>0.5). However, CSF IgG index was lower among patients with later disease onset (B=-5.35, P=0.028). Furthermore, we observed bias resulting from non-random distribution of sampling by season, which after correcting indicates a higher 25(OH)D level among patients sampled at relapse compared to remission, instead of lower as previously reported. Conclusion In summary, serum 25(OH)D was not associated with the age at onset.

Download Full-text

The Role of Vitamin D in Respiratory Allergies Prevention. Why the Effect Is so Difficult to Disentangle?

Nutrients ◽

10.3390/nu12061801 ◽

2020 ◽

Vol 12 (6) ◽

pp. 1801 ◽

Cited By ~ 2

Author(s):

Hanna Sikorska-Szaflik ◽

Barbara Sozańska

Keyword(s):

Vitamin D ◽

Allergic Rhinitis ◽

Allergic Diseases ◽

Childhood Diseases ◽

Systematic Analysis ◽

Hydroxyvitamin D ◽

Respiratory Allergies ◽

25 Hydroxyvitamin D ◽

The Relationship

Asthma and allergic rhinitis are the most common chronic childhood diseases with an increasing prevalence worldwide. There is an urgent need to look for methods of preventing allergic diseases from an early age. The relationship between vitamin D status and allergic diseases has been discussed in several studies recently. 25-hydroxyvitamin D (25(OH)D) is suggested to affect the development and/or severity of asthma and allergic rhinitis. Observational studies have seemed to confirm that vitamin D deficiency may contribute to an increase in allergy and asthma. Following interventional studies, however, have yielded ambiguous results. In this review, we describe recent findings regarding 25(OH)D impact on allergic diseases and provide a systematic analysis of the causes of great variability of the achieved results in different studies.

Download Full-text

The relationship between 25-hydroxyvitamin D concentration in early pregnancy and pregnancy outcomes in a large, prospective cohort

British Journal Of Nutrition ◽

10.1017/s0007114516003202 ◽

2016 ◽

Vol 116 (8) ◽

pp. 1409-1415 ◽

Cited By ~ 33

Author(s):

Veronica T. Boyle ◽

Eric B. Thorstensen ◽

David Mourath ◽

M. Beatrix Jones ◽

Lesley M. E. McCowan ◽

...

Keyword(s):

Vitamin D ◽

Preterm Birth ◽

Gestational Diabetes ◽

Pregnancy Outcomes ◽

Vitamin D Status ◽

Spontaneous Preterm Birth ◽

Hydroxyvitamin D ◽

Increased Risk ◽

25 Hydroxyvitamin D ◽

The Relationship

AbstractVitamin D insufficiency and deficiency have been associated with an increased risk of adverse pregnancy outcomes. Controversy remains as findings have been inconsistent between disparate populations. The aim of this study was to investigate the relationship between vitamin D status and pregnancy outcomes in a large, prospective pregnancy cohort. 25-Hydroxyvitamin D concentration was analysed in serum samples collected at 15 weeks of gestation from 1710 New Zealand women participating in a large, observational study. Associations between vitamin D status and pre-eclampsia, preterm birth, small for gestational age (SGA) and gestational diabetes were investigated. The mean 25-hydroxyvitamin D concentration was 72·9 nmol/l. In all, 23 % had 25-hydroxyvitamin D concentrations <50 nmol/l, and 5 % of participants had concentrations <25 nmol/l. Women with 25-hydroxyvitamin D concentrations <75 nmol/l at 15 weeks of gestation were more likely to develop gestational diabetes mellitus than those with concentrations >75 nmol/l (OR 2·3; 95 % CI 1·1, 5·1). However, this effect was not significant when adjustments were made for BMI and ethnicity (OR 1·8; 95 % CI 0·8, 4·2). 25-Hydroxyvitamin D concentration at 15 weeks was not associated with development of pre-eclampsia, spontaneous preterm birth or SGA infants. Pregnancy complications were low in this largely vitamin D-replete population.

Download Full-text

Low concentrations of serum 25-hydroxyvitamin D associated with increased risk for chronic bronchitis among US adults

British Journal Of Nutrition ◽

10.1017/s0007114511004417 ◽

2011 ◽

Vol 107 (9) ◽

pp. 1386-1392 ◽

Cited By ~ 10

Author(s):

Guixiang Zhao ◽

Earl S. Ford ◽

James Tsai ◽

Chaoyang Li ◽

Janet B. Croft

Keyword(s):

Vitamin D ◽

Vitamin D Deficiency ◽

Chronic Bronchitis ◽

Innate And Adaptive Immunity ◽

Hydroxyvitamin D ◽

Health And Nutrition ◽

Low Concentrations ◽

Increased Risk ◽

25 Hydroxyvitamin D

Increasing evidence suggests that vitamin D benefits both innate and adaptive immunity, thereby eliciting an anti-inflammatory effect and reducing the risk of infectious disease. The present study examined the association between serum 25-hydroxyvitamin D (25(OH)D) levels and the risk of chronic bronchitis among US adults. We analysed data from 6872 US adults aged ≥ 20 years who participated in the 2003–6 National Health and Nutrition Examination Survey. Prevalence and OR with 95 % CI of having self-reported chronic bronchitis were estimated by quintiles of 25(OH)D or vitamin D-deficiency status after adjustment for potential confounders. The results showed that the adjusted prevalence of chronic bronchitis ranged from 2·4 (95 % CI 1·4, 3·3) % among adults in the highest quintile of 25(OH)D ( ≥ 30 ng/ml) to 4·1 (95 % CI 2·5, 5·6) % among adults in the lowest quintile ( < 15 ng/ml; P for trend < 0·01). The adjusted OR for chronic bronchitis was 1·85 (95 % CI 1·06, 3·24) in adults with < 15 ng/ml 25(OH)D and 1·77 (95 % CI 1·19, 2·65) in those with 15 to < 20 ng/ml 25(OH)D compared with adults with ≥ 30 ng/ml 25(OH)D. Additionally, the adjusted OR for chronic bronchitis was 1·52 (95 % CI 1·03, 2·26) among adults with vitamin D deficiency ( < 20 ng/ml 25(OH)D) compared with those with ≥ 20 ng/ml 25(OH)D. For every 1 ng/ml increase in 25(OH)D, the likelihood of having chronic bronchitis fell by 2·6 % (P = 0·016). In conclusion, low serum 25(OH)D levels are associated with the increased risk of chronic bronchitis among US adults. The present results provide support for continuing research on the role of vitamin D in lung diseases.

Download Full-text

Role of glucuronidated 25-hydroxyvitamin D on colon gene expression in mice

AJP Gastrointestinal and Liver Physiology ◽

10.1152/ajpgi.00355.2019 ◽

2020 ◽

Vol 319 (2) ◽

pp. G253-G260

Author(s):

Carmen J. Reynolds ◽

Nicholas J. Koszewski ◽

Ronald L. Horst ◽

Donald C. Beitz ◽

Jesse P. Goff

Keyword(s):

Gene Expression ◽

Vitamin D ◽

Hydroxyvitamin D ◽

25 Hydroxyvitamin D

We found that 25OHD-Gluc, an endogenously produced metabolite, is delivered to the colon via bile to induce vitamin D-mediated responses in the colon.

Download Full-text

Plasma 25-Hydroxyvitamin D Levels and Fracture Risk in a Community-Based Cohort of Elderly Men in Sweden

The Journal of Clinical Endocrinology & Metabolism ◽

10.1210/jc.2009-2699 ◽

2010 ◽

Vol 95 (6) ◽

pp. 2637-2645 ◽

Cited By ~ 63

Author(s):

Håkan Melhus ◽

Greta Snellman ◽

Rolf Gedeborg ◽

Liisa Byberg ◽

Lars Berglund ◽

...

Keyword(s):

Vitamin D ◽

Uv Light ◽

Winter Season ◽

Community Dwelling ◽

Reference Level ◽

Blood Levels ◽

Elderly Men ◽

Hydroxyvitamin D ◽

Increased Risk ◽

25 Hydroxyvitamin D

Abstract Context: Blood levels of 25-hydroxyvitamin D [25(OH)D] is the generally accepted indicator of vitamin D status, but no universal reference level has been reached. Objective: The objective of the study was to determine the threshold at which low plasma 25(OH)D levels are associated with fractures in elderly men and clarify the importance of low levels on total fracture burden. Design and Participants: In the Uppsala Longitudinal Study of Adult Men, a population-based cohort (mean age, 71 yr, n = 1194), we examined the relationship between 25(OH)D and risk for fracture. Plasma 25(OH)D levels were measured with high-pressure liquid chromatography-mass spectrometry. Setting: The study was conducted in the municipality of Uppsala in Sweden, a country with a high fracture incidence. Main Outcome Measure: Time to fracture was measured. Results: During follow-up (median 11 yr), 309 of the participants (26%) sustained a fracture. 25(OH)D levels below 40 nmol/liter, which corresponded to the fifth percentile of 25(OH)D, were associated with a modestly increased risk for fracture, multivariable-adjusted hazard ratio 1.65 (95% confidence interval 1.09–2.49). No risk difference was detected above this level. Approximately 3% of the fractures were attributable to low 25(OH)D levels in this population. Conclusions: Vitamin D insufficiency is not a major cause of fractures in community-dwelling elderly men in Sweden. Despite the fact that cutaneous synthesis of previtamin D during the winter season is undetectable at this northern latitude of 60°, only one in 20 had 25(OH)D levels below 40 nmol/liter, the threshold at which the risk for fracture started to increase. Genetic adaptations to limited UV light may be an explanation for our findings.

Download Full-text

COVID-19 Disease Severity and Death in Relation to Vitamin D Status among SARS-CoV-2-Positive UAE Residents

Nutrients ◽

10.3390/nu13051714 ◽

2021 ◽

Vol 13 (5) ◽

pp. 1714

Author(s):

Habiba AlSafar ◽

William B. Grant ◽

Rafiq Hijazi ◽

Maimunah Uddin ◽

Nawal Alkaabi ◽

...

Keyword(s):

Vitamin D ◽

United Arab Emirates ◽

Blood Levels ◽

Vitamin D Status ◽

Hospital Visit ◽

Serum Samples ◽

Hydroxyvitamin D ◽

Increased Risk ◽

Multiethnic Population ◽

25 Hydroxyvitamin D

Insufficient blood levels of the neurohormone vitamin D are associated with increased risk of COVID-19 severity and mortality. Despite the global rollout of vaccinations and promising preliminary results, the focus remains on additional preventive measures to manage COVID-19. Results conflict on vitamin D’s plausible role in preventing and treating COVID-19. We examined the relation between vitamin D status and COVID-19 severity and mortality among the multiethnic population of the United Arab Emirates. Our observational study used data for 522 participants who tested positive for SARS-CoV-2 at one of the main hospitals in Abu Dhabi and Dubai. Only 464 of those patients were included for data analysis. Demographic and clinical data were retrospectively analyzed. Serum samples immediately drawn at the first hospital visit were used to measure serum 25-hydroxyvitamin D [25(OH)D] concentrations through automated electrochemiluminescence. Levels < 12 ng/mL were significantly associated with higher risk of severe COVID-19 infection and of death. Age was the only other independent risk factor, whereas comorbidities and smoking did not contribute to the outcomes upon adjustment. Sex of patients was not an important predictor for severity or death. Our study is the first conducted in the UAE to measure 25(OH)D levels in SARS-CoV-2-positive patients and confirm the association of levels < 12 ng/mL with COVID-19 severity and mortality.

Download Full-text

Relationship Between Level of Serum 25-Hydroxyvitamin D and Risk of Squamous Cell Carcinoma in an Iranian Population

Dermatology Practical & Conceptual ◽

10.5826/dpc.0904a06 ◽

2019 ◽

pp. 278-282

Author(s):

Mahboobeh-Sadat Hosseini ◽

Fereshteh Salarvand ◽

Amir Houshang Ehsani ◽

Pedram Noormohammadpour ◽

Shadi Azizzadeh ◽

...

Keyword(s):

Vitamin D ◽

Squamous Cell Carcinoma ◽

Cell Carcinoma ◽

Squamous Cell ◽

Outdoor Environment ◽

Hydroxyvitamin D ◽

Vitamin D Levels ◽

History Of ◽

25 Hydroxyvitamin D ◽

The Relationship

Background: The relationship between vitamin D and skin squamous cell carcinoma (SCC) is not well defined. Objective: To investigate the relationship between vitamin D levels and the incidence of skin SCC for the first time in Iran. Methods and Study Design: In this case-control study, 126 subjects were enrolled (63 in each group) out of referents to Razi Skin Hospital in Tehran in 2014. The risk factors for cancer gathered by self-reported questionnaires and blood samples were obtained to measure the level of 25-hydroxyvitamin D. Multivariate logistic regression was used to neutralize the effect of confounding factors. Results: Cases of SCC were more likely to be in men, older than 49 years and working in an outdoor environment, and with longtime exposure to sunlight and a personal history of skin cancers. Family history of skin cancer and of cigarette smoking were not significantly related to SCC. In the SCC and control groups, 69.8% and 31.7%, respectively, had sufficient levels of vitamin D (P < 0.001). Mean level of 25-hydroxyvitamin D was 40.99 ng/mL in the SCC group and 26.34 ng/mL in the control group (P < 0.05). In the unadjusted model, the level of vitamin D as a continuous variable was positively related to SCC risk. In the adjusted model, vitamin D did not independently predict the likelihood of SCC. Conclusion: Vitamin D level and SCC risk are directly related, although not in an independent fashion. Indeed, this relation is severely confounded by exposure to sunlight, which was evidenced by an increased vitamin D level in the people working outside and the higher prevalence of SCC in the same population.

Download Full-text

Five salmon dinners per week were not sufficient to prevent the reduction in serum vitamin D in autumn at 60° north latitude: a randomised trial

British Journal Of Nutrition ◽

10.1017/s0007114519002964 ◽

2019 ◽

Vol 123 (4) ◽

pp. 419-427 ◽

Cited By ~ 2

Author(s):

Marianne Bratlie ◽

Ingrid V. Hagen ◽

Anita Helland ◽

Øivind Midttun ◽

Arve Ulvik ◽

...

Keyword(s):

Vitamin D ◽

Fish Intake ◽

Control Group ◽

Serum Concentrations ◽

Hydroxyvitamin D ◽

Western Norway ◽

Increased Risk ◽

25 Hydroxyvitamin D ◽

High Fish ◽

North Latitude

AbstractLow serum concentrations of several vitamins have been linked to increased risk of diseases including insulin resistance and type 2 diabetes (T2D). Fish is a good source of several vitamins, and the prevalence of T2D is low in populations with high fish intake. The aim of the present study was to investigate the effects of high fish intake on vitamins in serum from adults in autumn in South-Western Norway at 60° north latitude. In this randomised clinical trial, sixty-three healthy participants with overweight/obesity consumed 750 g/week of either cod (n 22) or salmon (n 22) as five weekly dinners or were instructed to continue their normal eating habits but avoid fish intake (Control group, n 19) for 8 weeks. The estimated vitamin D intake was significantly increased in the Salmon group when compared with the Cod group (P = 6·3 × 10−4) and with the Control group (P = 3·5 × 10−6), with no differences between groups for estimated intake of vitamins A, B1, B2, B3, B6, B9, C and E. Serum 25-hydroxyvitamin D3 concentration was decreased in all groups after 8 weeks; however, the reduction in the Salmon group was significantly smaller compared with the Cod group (P = 0·013) and the Control group (P = 0·0060). Cod and salmon intake did not affect serum concentrations of the other measured vitamins. The findings suggest that 750 g/week of salmon was not sufficient to prevent a decrease in serum 25-hydroxyvitamin D3 in autumn in South-Western Norway in adults with overweight/obesity.

Download Full-text

Low 25-Hydroxyvitamin D Levels on Admission to the Intensive Care Unit May Predispose COVID-19 Pneumonia Patients to a Higher 28-Day Mortality Risk: A Pilot Study on a Greek ICU Cohort

Nutrients ◽

10.3390/nu12123773 ◽

2020 ◽

Vol 12 (12) ◽

pp. 3773

Author(s):

Alice G. Vassiliou ◽

Edison Jahaj ◽

Maria Pratikaki ◽

Stylianos E. Orfanos ◽

Ioanna Dimopoulou ◽

...

Keyword(s):

Intensive Care Unit ◽

Vitamin D ◽

Intensive Care ◽

Critically Ill ◽

Mortality Risk ◽

Rank Test ◽

Icu Admission ◽

Hydroxyvitamin D ◽

Increased Risk ◽

25 Hydroxyvitamin D

We aimed to examine whether low intensive care unit (ICU) admission 25-hydroxyvitamin D (25(OH)D) levels are associated with worse outcomes of COVID-19 pneumonia. This was a prospective observational study of SARS-CoV2 positive critically ill patients treated in a multidisciplinary ICU. Thirty (30) Greek patients were included, in whom 25(OH)D was measured on ICU admission. Eighty (80%) percent of patients had vitamin D deficiency, and the remaining insufficiency. Based on 25(OH)D levels, patients were stratified in two groups: higher and lower than the median value of the cohort (15.2 ng/mL). The two groups did not differ in their demographic or clinical characteristics. All patients who died within 28 days belonged to the low vitamin D group. Survival analysis showed that the low vitamin D group had a higher 28-day survival absence probability (log-rank test, p = 0.01). Critically ill COVID-19 patients who died in the ICU within 28 days appeared to have lower ICU admission 25(OH)D levels compared to survivors. When the cohort was divided at the median 25(OH)D value, the low vitamin D group had an increased risk of 28-day mortality. It seems plausible, therefore, that low 25(OH)D levels may predispose COVID-19 patients to an increased 28-day mortality risk.

Download Full-text