scholarly journals The importance of maternal pregnancy vitamin D for offspring bone health: learnings from the MAVIDOS trial

2021 ◽  
Vol 13 ◽  
pp. 1759720X2110069
Author(s):  
Rebecca J. Moon ◽  
Elizabeth M. Curtis ◽  
Stephen J. Woolford ◽  
Shanze Ashai ◽  
Cyrus Cooper ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Development ◽  
Controlled Trial ◽  
Clinical Care ◽  
Later Life ◽  
Vitamin D Supplementation ◽  
Public Health Policies ◽  
Positive Effects

Optimisation of skeletal mineralisation in childhood is important to reduce childhood fracture and the long-term risk of osteoporosis and fracture in later life. One approach to achieving this is antenatal vitamin D supplementation. The Maternal Vitamin D Osteoporosis Study is a randomised placebo-controlled trial, the aim of which was to assess the effect of antenatal vitamin D supplementation (1000 IU/day cholecalciferol) on offspring bone mass at birth. The study has since extended the follow up into childhood and diversified to assess demographic, lifestyle and genetic factors that determine the biochemical response to antenatal vitamin D supplementation, and to understand the mechanisms underpinning the effects of vitamin D supplementation on offspring bone development, including epigenetics. The demonstration of positive effects of maternal pregnancy vitamin D supplementation on offspring bone development and the delineation of underlying biological mechanisms inform clinical care and future public-health policies.

scholarly journals Immunological Response to SARS-CoV-2 Is Sustained by Vitamin D: A Case Presentation of One-Year Follow-Up

Reports ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 18
Author(s):  
Filippo Luciani ◽  
Maria Cristina Caroleo ◽  
Roberto Cannataro ◽  
Davida Mirra ◽  
Bruno D’Agostino ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Development ◽  
Immunological Response ◽  
Vitamin D Supplementation ◽  
Case Presentation ◽  
Acute Respiratory Viral Infection ◽  
One Year ◽  
Positive Effect

Vitamin D is necessary for normal bone development and conservation. Moreover, it has extraskeletal effects, which play a pivotal role as a modulator of innate and adaptive immune responses. Many studies have highlighted the beneficial effect of vitamin D in protecting against acute respiratory viral infection, including COVID-19. Within this context, we described the effect of vitamin D supplementation in the immunological response to SARS-CoV-2 infection. Long-term IgG SARS-CoV-2 antibody responses were assessed in a cohort of twenty-two subjects diagnosed with COVID-19 by chemiluminescence assay (CLIA). Among them, a 61-year-old nurse undergoing vitamin D therapy showed a positive IgG response against SARS-CoV-2 nucleocapsid over nine months after infection, suggesting vitamin D played a role in modulating early antibody response against SARS-CoV-2. This result provides evidence of a positive effect of vitamin D on the decrease of functional humoral immunity.

scholarly journals Effect of 6-Month Vitamin D Supplementation on Plasma Matrix Gla Protein in Older Adults

Nutrients ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 231 ◽  
Author(s):  
Adriana van Ballegooijen ◽  
Joline Beulens ◽  
Leon Schurgers ◽  
Elisa de Koning ◽  
Paul Lips ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin K ◽  
Controlled Trial ◽  
Vitamin K Antagonists ◽  
Functional Limitation ◽  
Vitamin D Supplementation ◽  
Vitamin K Antagonist ◽  
Matrix Gla Protein ◽  
Double Blind

Vitamin D supplementation has been widely promoted to restore 25-hydroxyvitamin D concentrations; however, experimental evidence suggests a nutrient interaction with vitamin K. We assessed the effects of 1200 IU vitamin D3 per day versus placebo for six months on vitamin K status in a randomized, double-blind, placebo-controlled trial with participants aged 60–80 years with depressive symptoms and ≥1 functional limitation for a secondary analysis. Stored baseline and six-month follow-up blood samples were available for 131 participants (n = 65 placebo vs. n = 66 vitamin D supplementation). We measured dephosphorylated uncarboxylated matrix gla protein (MGP) (dp-ucMGP) concentrations—a marker of vitamin K deficiency. Mean age was 68 years, and 89 participants (68%) were women. Vitamin K antagonists were used by 16 participants and multivitamin supplements by 50 participants. No differences in change between intervention and placebo were found (−38.5 ± 389 vs. 4.5 ± 127 (pmol/L), p = 0.562). When excluding vitamin K antagonist users and multivitamin users, dp-ucMGP at follow-up was significantly higher in the vitamin D group (n = 40) compared to placebo (n = 30), with a difference of 92.8 (5.7, 180) pmol/L, adjusting for baseline dp-ucMGP and sex. In conclusion, vitamin D supplementation for six months did not affect vitamin K status; however, among participants without vitamin K antagonist or multivitamin use, vitamin D supplementation influenced dp-ucMGP concentrations.

scholarly journals Changes in vitamin D levels and depressive symptoms in later life in England

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Giorgio Di Gessa ◽  
Jane P. Biddulph ◽  
Paola Zaninotto ◽  
Cesar de Oliveira
Keyword(s):  
Vitamin D ◽  
Depressive Symptoms ◽  
Later Life ◽  
Vitamin D Supplementation ◽  
Cross Sectional ◽  
Logistic Regression Models ◽  
Representative Study ◽  
Increased Risk ◽  
Vitamin D Levels

AbstractInadequate vitamin D levels have been associated with increased risk of depression. However, most of these studies are cross-sectional and failed to investigate the effect of changes in vitamin D levels. This study aimed to investigate the longitudinal association of changes in serum 25-hydroxyvitamin D levels with depressive symptoms in 3365 participants of the English Longitudinal Study of Ageing, a large nationally-representative study of older adults. Based on their vitamin D levels at baseline and follow-up (sufficient ≥ 50 nmol/L; insufficient < 50 nmol/L), participants were classified as follows: with sufficient levels at both waves; with sufficient levels at baseline but not at follow-up; with insufficient levels at baseline but ≥ 50 nmol/L at follow-up; and with levels < 50 nmol/L at each time point. Depressive symptoms were measured using the 8-point CES-D scale. Data were analysed using logistic regression models. Compared with those with sufficient levels of vitamin D at both waves, only those with insufficient levels throughout were more likely to report elevated depressive symptoms (OR = 1.39, 95% CI = 1.00–1.93). Becoming or no longer being vitamin D deficient was, in the short term, not associated with elevated depressive symptoms. Further evidence is required on whether vitamin D supplementation might contribute to the prevention or treatment of depression as well as on the duration of time for changes in vitamin D levels to lead to detectable changes in depressive symptoms.

scholarly journals Long-term incidence of urolithiasis post-bariatric surgery

2014 ◽  
Vol 8 (9-10) ◽  
pp. 688 ◽  
Author(s):  
Nicholas Haddad ◽  
Patrick Scheffler ◽  
Mohamed Aly Elkoushy ◽  
Olivier Court ◽  
Nicolas V Christou ◽  
...  
Keyword(s):  
Vitamin D ◽  
De Novo ◽  
Vitamin D Supplementation ◽  
Stone Formers ◽  
Medical Histories ◽  
Recurrent Stone ◽  
Post Bariatric Surgery ◽  
Telephone Questionnaire

Introduction: The risk of urolithiasis post-Roux-en-Y gastric bypass (RYGB) surgery is higher when compared to the general population. Calcium and vitamin D supplementation is routinely prescribed to these patients, yet compliance with these supplements is unknown. The aim of this study was to assess the incidence of symptomatic de novo urolithiasis post-RYGB and compliance with calcium and vitamin D supplementation.Methods: A standardized telephone questionnaire was administered to patients who underwent RYGB between 1996 and 2011. Personal and medical histories were obtained with emphasis on episodes of symptomatic urolithiasis and calcium and vitamin D supplementation.Results: The response rate was 48% with 478 patients completing the telephone questionnaire. After a mean follow-up of 7.0 years (range: 1-15), the incidence of post-RYGB symptomatic urolithiasis was 7.3%, while the rate of de novo symptomatic urolithiasis was 5%. The overall median time to present with symptomatic urolithiasis was 3.1 years, with 3.3 years for de novo stone-formers, and 2.0 years for recurrent stone-formers (p = 0.38). In de novo stone-formers, 33% presented with symptomatic urolithiasis 4 to 14 years postoperatively. Compliance with calcium and vitamin D supplementation was 56% and 51%, respectively.Conclusions: Despite recall bias and lack of confirmatory imaging studies, a high postoperative incidence of symptomatic urolithiasis was found in a large sample of post-RYGB patients. A third of patients with de novo stones, presented with symptomatic urolithiasis 4 to 14 years postoperatively. Compliance with postoperative calcium and vitamin D supplementation was poor and needs improvement.

scholarly journals Maternal and Foetal Health Implications of Vitamin D Status during Pregnancy

2018 ◽  
Vol 72 (3) ◽  
pp. 179-192 ◽  
Author(s):  
Elvira Larqué ◽  
Eva Morales ◽  
Rosaura Leis ◽  
José E. Blanco-Carnero
Keyword(s):  
Vitamin D ◽  
Bone Development ◽  
Perinatal Outcomes ◽  
Vitamin D Supplementation ◽  
Vitamin D Status ◽  
Foetal Development ◽  
Hydroxyvitamin D ◽  
Melanoma Cancer ◽  
25 Hydroxyvitamin D

Background: To what extent does the circulating 25-hydroxyvitamin D (25[OH]D) concentration help to meet the physiological needs of humans is an ongoing subject of debate. Remaining unexposed to the sun to reduce melanoma cancer risk, current lifestyle with less out door activities, and increasing obesity rates, which in turn increases the storage of vitamin D in the adipose tissue, are presumably factors that contribute to the substantial upsurge in the prevalence of vitamin D deficiency in humans. Since evidence is lacking regarding the appropriate cut-off points to define vitamin D status during pregnancy, references used to establish the intake recommendations and vitamin D content of prenatal vitamin supplements are quite conservative. Summary: The foetus depends fully on maternal 25(OH)D supply. 25(OH)D readily crosses the placenta and it is activated into 1,25(OH)2D by foetal kidneys. Moreover, 1,25(OH)2D can also be synthesized within the placenta to regulate placental metabolism. The importance of vitamin D during pregnancy for maintaining maternal calcium homeostasis and therefore for foetal bone development is well recognized; major discussions are in progress regarding the potential maternal detrimental effects on pregnancy outcomes, foetal development, and the long-term health of children. Interventional studies have also evaluated the effect of vitamin D for reduction on preterm birth and asthma programming. Key Messages: Clinically, by understanding the effects of vitamin D on perinatal outcomes, we could individualize antenatal counselling regarding vitamin D supplementation to ensure vitamin D repletion without increasing the risk of foetal hypercalcemia.

scholarly journals Secondary Hyperparathyroidism Among Bariatric Patients: Unraveling the Prevalence of an Overlooked Foe

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A267-A268
Author(s):  
Fernando Mendonça ◽  
João Sérgio Neves ◽  
Maria Manuel Silva ◽  
Marta Borges Canha ◽  
Cláudia Costa ◽  
...  
Keyword(s):  
Vitamin D ◽  
Secondary Hyperparathyroidism ◽  
Independent Predictor ◽  
Vitamin D Supplementation ◽  
Obese Patients ◽  
Logistic Analysis ◽  
Bariatric Patients ◽  
One Year

Abstract Introduction: Bariatric surgery (BS) is an effective therapeutic approach for obese patients. It is associated with important gastrointestinal anatomic changes, predisposing these subjects to altered nutrient absorption that impact phosphocalcium metabolism. This study aims to clarify the prevalence of secondary hyperparathyroidism (SHPT) and its predictors in patients submitted to BS. Methods: Retrospective unicentric study of 1431 obese patients who underwent metabolic surgery between January/2010 and June/2017 and who were followed for, at least, a year. In this group, 185 subjects were submitted to laparoscopic adjustable gastric banding (LAGB), 830 underwent Roux-en-Y gastric bypass (RYGB) and 416 sleeve gastrectomy (SG). Data comprising 4 years of follow-up were available for 333 patients. We compared the clinical and analytical characteristics of patients with and without secondary hyperparathyroidism (considering SHPT a PTH˃69pg/mL), taking also into account the type of surgery. A multiple logistic regression was performed to study the predictors of SHPT after BS. Results: The overall prevalence of SHPT before surgery was 24.9%, 11.2% one year after surgery and 21.3% four years after surgery. At 12 months after surgery, LAGB had the highest prevalence of patients with SHPT (19.4%, N=36), RYGB had 12.8% (N=274) and SG 5.3% (N=131). At 48 months after surgery, RYGB had the highest prevalence of SHPT (27.0%, N=222), LAGB had 13.2% (N=53) and SG 6.9% (N=58). Multi-variate logistic analysis showed that increased body mass index and age, decreased levels of vitamin D and RYGB were independent predictors of SHPT one year after surgery. The only independent predictor of SHPT four years after surgery was RYGB. Conclusion: The prevalence of SHPT is considerably higher before and four years after BS than 1 year after surgery. This fact raises some questions about the efficacy of the implemented follow-up plans of vitamin D supplementation on the long term, mainly among patients submitted to RYGB.

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