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Vitamin D Insufficiency as a Risk Factor for Paclitaxel-Induced Peripheral Neuropathy in SWOG S0221.Journal of the National Comprehensive... Nov 2023Prior work suggests that patients with vitamin D insufficiency may have a higher risk of chemotherapy-induced peripheral neuropathy (CIPN) from paclitaxel. The objective... (Randomized Controlled Trial)
Randomized Controlled Trial
BACKGROUND
Prior work suggests that patients with vitamin D insufficiency may have a higher risk of chemotherapy-induced peripheral neuropathy (CIPN) from paclitaxel. The objective of this study was to validate vitamin D insufficiency as a CIPN risk factor.
METHODS
We used data and samples from the prospective phase III SWOG S0221 (ClinicalTrials.gov identifier: NCT00070564) trial that compared paclitaxel-containing chemotherapy regimens for early-stage breast cancer. We quantified pretreatment 25-hydroxy-vitamin D in banked serum samples using a liquid chromatography-tandem mass spectrometry targeted assay. We tested the association between vitamin D insufficiency (≤20 ng/mL) and grade ≥3 sensory CIPN via multiple logistic regression and then adjusted for self-reported race, age, body mass index, and paclitaxel schedule (randomization to weekly or every-2-week dosing). We also tested the direct effect of vitamin D deficiency on mechanical hypersensitivity in mice randomized to a regular or vitamin D-deficient diet.
RESULTS
Of the 1,191 female patients in the analysis, 397 (33.3%) had pretreatment vitamin D insufficiency, and 195 (16.4%) developed grade ≥3 CIPN. Patients with vitamin D insufficiency had a higher incidence of grade ≥3 CIPN than those who had sufficient vitamin D (20.7% vs 14.2%; odds ratio [OR], 1.57; 95% CI, 1.14-2.15; P=.005). The association retained significance after adjusting for age and paclitaxel schedule (adjusted OR, 1.65; 95% CI, 1.18-2.30; P=.003) but not race (adjusted OR, 1.39; 95% CI, 0.98-1.97; P=.066). In the mouse experiments, the vitamin D-deficient diet caused mechanical hypersensitivity and sensitized mice to paclitaxel (both P<.05).
CONCLUSIONS
Pretreatment vitamin D insufficiency is the first validated potentially modifiable predictive biomarker of CIPN from paclitaxel. Prospective trials are needed to determine whether vitamin D supplementation prevents CIPN and improves treatment outcomes in patients with breast and other cancer types.
Topics: Humans; Female; Animals; Mice; Paclitaxel; Prospective Studies; Peripheral Nervous System Diseases; Breast Neoplasms; Vitamin D; Risk Factors; Vitamin D Deficiency; Antineoplastic Agents
PubMed: 37935109
DOI: 10.6004/jnccn.2023.7062 -
Archives of Women's Mental Health Dec 2023Anxiety and vitamin D deficiency are both common in pregnancy, but research into the relationship between vitamin D levels and perinatal anxiety is sparse. We sought to...
Anxiety and vitamin D deficiency are both common in pregnancy, but research into the relationship between vitamin D levels and perinatal anxiety is sparse. We sought to examine whether an association exists and compare the distribution of vitamin D levels in women with and without anxiety symptoms. We analyzed 25-hydroxyvitamin D using ab213966 25(OH) vitamin D enzyme-linked immunosorbent assay in 54 women with and 47 women without anxiety symptoms at the first, second, and third trimesters and at 6 weeks postpartum. We conducted univariate and chi-square analyses to compare the frequencies of non-optimal and optimal vitamin D levels between the anxiety and non-anxiety groups at each timepoint. Overall, vitamin D levels were lower in the first and second trimesters than in the third trimester. In the first trimester only, the non-anxiety group had a marginally higher proportion of women with optimal vitamin D levels when compared to the anxiety group. Many pregnant women have insufficient or deficient levels of vitamin D, and our exploratory findings point to the need for further research into whether this differs between women with anxiety compared to healthy women.
Topics: Female; Pregnancy; Humans; Vitamin D; Vitamins; Vitamin D Deficiency; Postpartum Period; Anxiety; Pregnancy Complications
PubMed: 37566124
DOI: 10.1007/s00737-023-01358-5 -
Vitamin D in hypoparathyroidism: insight into pathophysiology and perspectives in clinical practice.Endocrine Aug 2023Hypoparathyroidism (HypoPT) is a rare endocrine disorder characterized by the absence or insufficient parathyroid hormone production resulting in chronic hypocalcemia.... (Review)
Review
Hypoparathyroidism (HypoPT) is a rare endocrine disorder characterized by the absence or insufficient parathyroid hormone production resulting in chronic hypocalcemia. Complications of HypoPT include perturbation of several target organs. The conventional treatment consists of the administration of active vitamin D, namely calcitriol. Regarding vitamin D status, few data are available, mostly in HypoPT subjects supplemented with parent vitamin D. In addition, perturbation of vitamin D metabolism has been poorly investigated, as well as the contribution of altered vitamin D status on the clinical expression of the disease. The most recent consensus on the management of chronic HypoPT suggests the baseline evaluation of serum 25-hydroxy-vitamin D [25(OH)D] and supplementation with parent vitamin D with the aim to achieve and maintain serum 25(OH)D levels in the range of 30-50 ng/mL. The rationale for using supplementation with parent vitamin D (either ergocalciferol or cholecalciferol) in HypoPT would be to provide sufficient 25(OH)D substrate to the residual 1-α-hydroxylase activity, thus ensuring its conversion to active vitamin D in renal and extra-renal tissues. More data from experimental and clinical studies are needed for better assessing how these mechanisms may significantly influence metabolic control in HypoPT and eventually skeletal and extra-skeletal manifestation of the disease. Finally, future data will clarify how the currently available parent vitamin D compounds (ergocalciferol, cholecalciferol, calcifediol) would perform in addressing these specific issues.
Topics: Humans; Vitamin D; Cholecalciferol; Calcitriol; Hypoparathyroidism; Calcifediol; Parathyroid Hormone; Vitamins; Ergocalciferols; Vitamin D Deficiency
PubMed: 37000405
DOI: 10.1007/s12020-023-03354-2 -
Nutrients Aug 2023Taking into account previous data that sustain a relationship between vitamin D deficiency and higher infection positivity rates, this review aims to assess the... (Review)
Review
Taking into account previous data that sustain a relationship between vitamin D deficiency and higher infection positivity rates, this review aims to assess the influence of vitamin D deficiency and/or insufficiency upon the prevalence of infection and its eradication success. Three major databases were searched for articles that analyzed a relationship between vitamin D status and infection. The literature search retrieved a total of 37 reports, after the article selection process. Hypovitaminosis D emerged as a potential risk factor for infection, given the higher prevalence of vitamin D deficiency and/or insufficiency among -positive subjects. Furthermore, the same type of micronutrient deficiency has been directly linked to eradication failure. An inverse linear relationship between vitamin D status and gastric cancer risk exists, but the additional involvement of in this correlation is still in question. The potential benefit of oral supplements in enhancing the success of classical therapeutic regimens of still requires future research. Future population-based studies from larger geographical areas are warranted to address this subject in more depth.
Topics: Humans; Vitamin D; Helicobacter pylori; Prevalence; Vitamins; Vitamin D Deficiency
PubMed: 37630738
DOI: 10.3390/nu15163549 -
International Journal of Surgery... Dec 2023To estimate the prevalence and associated factors of vitamin D deficiency (VDD) after Roux-en-Y gastric bypass (RYGB). (Meta-Analysis)
Meta-Analysis
OBJECTS
To estimate the prevalence and associated factors of vitamin D deficiency (VDD) after Roux-en-Y gastric bypass (RYGB).
METHODS
PubMed, EMBASE, and CENTRAL were searched for relevant records from inception to 17 March 2023, using search terms: vitamin D, vitamin D3, vitamin D deficiency, hypovitaminosis D, gastric bypass, and RYGB. Studies were eligible for inclusion if they provided related data on VDD prevalence after RYGB.
RESULTS
Of the 1119 screened studies, 72 studies involving 7688 individuals were enrolled in the final analysis. The prevalence estimates of VDD after RYGB were 42%. Subgroup analyses suggested the pooled prevalence of postoperative VDD was 35% for follow-up duration less than or equal to 1 year, 43% for greater than 1 and less than or equal to 5 years, and 54% for greater than 5 years. Meta-regression showed that VDD prevalence was positively correlated with follow-up time. Also, the prevalence was higher in studies with inadequate vitamin D supplementation than in those with adequate supplementation and in Asia population than in those from South America, Europe, and North America. Other factors associated with high VDD prevalence after RYGB included high presurgical VDD prevalence, noncompliant patients, and black populations. No significant association existed between VDD and alimentary length.
CONCLUSION
VDD presented a high prevalence in patients following RYGB. It occurred more frequently with longer postoperative follow-up time. Population-specific vitamin D supplementation measures, targeted treatment for presurgical VDD, improved patient compliance, and periodical follow-ups were necessary to reduce VDD and other adverse outcomes.
Topics: Humans; Gastric Bypass; Prevalence; Vitamin D Deficiency; Vitamin D; Vitamins; Obesity, Morbid
PubMed: 37738003
DOI: 10.1097/JS9.0000000000000732 -
Arthritis Research & Therapy Sep 2023This study aimed to investigate the long-term effect of vitamin D supplementation compared to placebo over 5 years in participants with knee osteoarthritis (OA). We...
OBJECTIVES
This study aimed to investigate the long-term effect of vitamin D supplementation compared to placebo over 5 years in participants with knee osteoarthritis (OA). We also aimed to describe the effect of maintaining sufficient serum vitamin D levels over five years in knee OA.
METHODS
Participants (n = 173) from the Hobart centre of the Vitamin D Effects on Osteoarthritis (VIDEO) trial were extensively followed up 3 years after the cessation of 2-year investigational treatment. Participants were classified as maintaining sufficient vitamin D (n = 79) and not maintaining sufficient vitamin D (n = 61) groups.
RESULTS
There was no significant difference in change in the knee symptoms, depression, and serum levels of IL6 and hs-CRP between both comparisons after 3 years of cessation of the clinical trial. However, among participants who reported no knee surgery (KS), there was a significant improvement in WOMAC function (β: - 83.7, 95% CI: - 167.3, 0) and depression scores (β: - 1.3, 95% CI: - 2.3, - 0.2) in vitamin D group compared to the placebo group. Similarly, those who maintained adequate vitamin D levels over 5 years had significantly less WOMAC knee pain (β: - 33.9, 95% CI: - 65.7, - 2) and physical dysfunction (β: - 105.5, 95% CI: - 198.2, - 12.8) than participants with vitamin D deficiency over 5 years.
CONCLUSION
Vitamin D supplementation over 2 years or maintaining vitamin D sufficiency for 5 years was not associated with statistically significant differences in change in knee symptom scores over 5 years. However, among participants who did not report KS, 2-year vitamin D supplementation and maintaining sufficient vitamin D was linked to modest improvements in knee symptoms and depression scores in knee OA.
Topics: Humans; Vitamin D; Osteoarthritis, Knee; Knee Joint; Vitamin D Deficiency; Dietary Supplements
PubMed: 37740217
DOI: 10.1186/s13075-023-03167-8 -
European Journal of Pediatrics Feb 2024Dental caries represents one of the most prevalent health problems in childhood. Numerous studies have assessed that vitamin D deficiency is highly related to dental... (Review)
Review
Dental caries represents one of the most prevalent health problems in childhood. Numerous studies have assessed that vitamin D deficiency is highly related to dental caries in primary and permanent teeth in children. The aim of this study is to elaborate a narrative review about proposed mechanisms by which vitamin D deficiency interacts with dental caries process in children. Vitamin D deficiency during pregnancy may cause intrauterine enamel defects, and through childhood is accompanied by insufficient activity of antibacterial peptides, decreased saliva secretion, and a low level of calcium in saliva. Conclusion: In conclusion, vitamin D deficiency would increase the risk of caries in the primary and/or permanent dentition. Relationship between vitamin D deficiency and dental caries is evident enough for vitamin D deficiency to be considered as a risk factor for dental caries in children. Optimal levels of vitamin D throughout pregnancy and childhood may be considered an additional preventive measure for dental caries in the primary and permanent dentition.
Topics: Child; Pregnancy; Female; Humans; Dental Caries; Vitamin D Deficiency; Vitamin D; Vitamins; Risk Factors
PubMed: 37966493
DOI: 10.1007/s00431-023-05331-3 -
Nutrition Reviews Sep 2023Vitamin D deficiency is considered a global public health issue, even in low-latitude countries where there is abundant sunlight radiation. Nevertheless, the... (Meta-Analysis)
Meta-Analysis
CONTEXT
Vitamin D deficiency is considered a global public health issue, even in low-latitude countries where there is abundant sunlight radiation. Nevertheless, the prevalence of vitamin D insufficiency and deficiency in the South American continent has not been well characterized.
OBJECTIVE
The aim of this review was to estimate the prevalence of vitamin D deficiency (25-hydroxy-calciferol < 20 ng/mL) in South American populations.
DATA SOURCES
Seven electronic databases (MEDLINE, Web of Science, Embase, Biblioteca Virtual de Saúde, SciELO, Scopus, and Google Scholar) were searched systematically for observational studies published before July 1, 2021, and reporting vitamin D status of healthy adults in South America.
DATA EXTRACTION
Data were extracted using a standardized form. Risk of bias was assessed by the Joanna Briggs Institute Critical Appraisal Instrument for Studies Reporting Prevalence. All steps were conducted independently by two authors. Data were pooled using a random-effects model. Stratified meta-analysis and meta-regression were conducted (R software).
DATA ANALYSIS
Of 9460 articles identified, 96 studies with a total of 227 758 participants were included. The overall prevalence of vitamin D deficiency was 34.76% (79 studies; 95%CI, 29.68-40.21; I2 = 99%). There were significant differences in prevalence rates related to age, sex, country, latitude, season, and year of publication.
CONCLUSION
The prevalence of vitamin D deficiency is unexpectedly elevated in South American populations. Public health strategies should include efforts to prevent, detect, and treat vitamin D deficiency.
SYSTEMATIC REVIEW REGISTRATION
PROSPERO registration number CRD42020169439.
Topics: Adult; Humans; Prevalence; Vitamin D Deficiency; Vitamin D; Vitamins; South America
PubMed: 36882047
DOI: 10.1093/nutrit/nuad010 -
Epilepsy & Behavior : E&B Oct 2023Vitamin D deficiency among adult people with epilepsy (PWE) is scarcely studied, despite its essential role in bone health and maintaining homeostasis. Several studies...
BACKGROUND
Vitamin D deficiency among adult people with epilepsy (PWE) is scarcely studied, despite its essential role in bone health and maintaining homeostasis. Several studies have studied the relationship between factors related to epilepsy and vitamin D metabolism. We aim to investigate this in our multi-ethnic society.
METHODS
This was a single-center cross-sectional study. We recruited 159 participants diagnosed with epilepsy on antiseizure medications (ASMs). We included those aged 18 years and above, excluding patients with long-term medical conditions that would affect vitamin D metabolism. Sociodemographic data and details of epilepsy were collated. Venous sampling was performed to analyze the levels of albumin-corrected calcium, phosphate, alkaline phosphatase, and 25-hydroxyvitamin D3 [25(OH)D]. Serum 25(OH)D level is defined as deficient (<20 ng/ml), insufficient (20-29 ng/ml), and sufficient (≥30 ng/ml).
RESULTS
The study reported that 73 (45.9%) participants had vitamin D deficiency, 38 (23.9%) had vitamin D insufficiency, and 48 (30.2%) patients had sufficient vitamin D levels. The predictors identified were PWE aged 18 to 44 years old (p = 0.001), female gender (OR 3.396, p = 0.002), and ethnicity (p < 0.001), specifically Malay and Chinese. However, no significant association was identified between types of ASMs, serum calcium, or the prevalence of vitamin D deficiency.
CONCLUSION
Vitamin D deficiency among PWE is prevalent in our local population, suggesting that regular screening should be considered for those at risk. Early identification would allow intervention to reduce the risk of future complications.
Topics: Humans; Adult; Female; Adolescent; Young Adult; Cross-Sectional Studies; Calcium; Prevalence; Vitamin D Deficiency; Vitamin D; Epilepsy
PubMed: 37716324
DOI: 10.1016/j.yebeh.2023.109432 -
Nutrition Research Reviews Dec 2023Depression is a mental disorder triggered by the interaction of social, psychological and biological factors that have an important impact on an individual's life.... (Review)
Review
Depression is a mental disorder triggered by the interaction of social, psychological and biological factors that have an important impact on an individual's life. Despite being a well-studied disease with several established forms of treatment, its prevalence is increasing, especially among older adults. New forms of treatment and prevention are encouraged, and some researchers have been discussing the effects of vitamin D (VitD) on depression; however, the exact mechanism by which VitD exerts its effects is not yet conclusive. In this study, we aimed to discuss the possible mechanisms underlying the association between VitD and depression in older adults. Therefore, we conducted a systematic search of databases for indexed articles published until 30 April 2021. The primary focus was on both observational studies documenting the association between VitD and depression/depressive symptoms, and clinical trials documenting the effects of VitD supplementation on depression/depressive symptoms, especially in older adults. Based on pre-clinical, clinical and observational studies, it is suggested that the maintenance of adequate VitD concentrations is an important issue, especially in older adults, which are a risk population for both VitD deficiency and depression. Nevertheless, it is necessary to carry out more studies using longitudinal approaches in low- and middle-income countries to develop a strong source of evidence to formulate guidelines and interventions.
Topics: Aged; Humans; Depression; Mental Disorders; Vitamin D; Vitamin D Deficiency; Vitamins; Observational Studies as Topic; Clinical Studies as Topic
PubMed: 35022097
DOI: 10.1017/S0954422422000026