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Abstract Background Vitamin D deficiency remains a significant public health concern, particularly among exclusively breastfed infants. Infants born to mothers with vitamin D deficiency, often influenced by cultural factors affecting diet, lifestyle, and clothing, are at increased risk of developing early and potentially fatal complications of hypocalcemic vitamin D deficiency. While seizures and tetany are well-recognized manifestations of hypocalcemia in infants, less common symptoms, such as feeding difficulties and recurrent apnea, are rarely documented. . Case presentation We present the case of a 50-day-old Ethiopian full-term infant, born to a Muslim Ethiopian mother, who experienced feeding difficulties, frequent brief episodes of apnea, and cyanosis since birth. The underlying cause was identified as hypocalcemia-induced laryngospasm due to congenital vitamin D deficiency, which resulted from maternal vitamin D deficiency. The mother, who has worn a niqab since childhood, had minimal sun exposure, contributing to her low vitamin D levels. The infant was successfully treated with intravenous calcium gluconate, followed by oral calcium and vitamin D supplementation, leading to complete resolution of symptoms and normalization of biochemical parameters. Conclusion Hypocalcemia-induced laryngospasm presenting with feeding difficulties and recurrent apneic episodes is a rare yet serious clinical condition. This report emphasizes the need to consider hypocalcemia as a potential cause of unexplained feeding difficulties or recurrent apnea in newborns and infants. Therefore, clinicians should remain vigilant and maintain a high index of suspicion to ensure timely diagnosis and treatment. It is essential to measure serum calcium and vitamin D levels in both the mother and infant, particularly for newborns of high-risk mothers, such as those who wear conservative religious clothing like a niqab. Furthermore, routine biochemical screening for vitamin D deficiency should be incorporated into antenatal care for all high-risk mothers, with appropriate supplementation to prevent potential complications in both mothers and their infants.

Background: This paper aimed to determine the prevalence of 25-hydroxy vitamin D (25(OH)D) deficiency in healthy adult patients who presented to our hospital in Istanbul province and to present the difference between vitamin 25(OH)D levels by gender, age group, season, and month. Methods: The vitamin 25(OH)D levels of 9,778 adults who presented to our hospital's internal medicine checkup outpatient clinic between January 2022 and December 2023 were analyzed retrospectively. Individuals with chronic disorders were excluded from the study. The adult patients included in the study were divided into two groups by age (18-50 and 51-65 years). Serum 25(OH)D levels were measured using the electrochemiluminescence immunoassay method. A serum 25(OH)D level was considered deficient if below 20 ng/mL, insufficient if 20-30 ng/mL, and sufficient if above 30 ng/mL. The patients' 25(OH)D levels were investigated by age, gender, season, and month. Results: After measurement, vitamin D levels were deficient in 57.2% of the patients (n=5,592), insufficient in 28.2% (n=2,756), and sufficient in 14.6% (n=1,430). The mean vitamin D level of the 18-50 age group was significantly lower than that of the group 51-65 age group (p=0.001; p0.05). The mean vitamin D levels were 17.99±10.88 ng/mL in winter, 18.11±12.69 ng/mL in spring, 22.08±11.58 ng/mL in summer, and 21.67±10.82 ng/mL in fall. There were statistically significant differences according to the season and month of hospital presentation (p=0.001; p

Background: Vitamin D is essential for bone health and immune system. Vitamin D deficiency (VDD) poses a high-risk to very preterm (VP) infants. This study aimed to evaluate the risk factors associated with VDD in VP infants and its potential clinical outcomes. Methods: A retrospective cohort study was conducted on VP infants admitted to the neonatal intensive care unit of a specialized tertiary hospital in Seoul, Republic of Korea, between January 2018 and June 2022. Serum 25-hydroxyvitamin D (25(OH)D) levels and other biochemical parameters were measured between 4 and 6 weeks of age. VDD was defined as a serum 25(OH)D level

Abstract There is little research on anemia and vitamin D deficiency in HIV-exposed uninfected (HEU) children. This study was aimed to describe and compare the prevalence of anemia and vitamin D inadequacy in HEU children and HIV-unexposed uninfected (HUU) children, and to examine the associations of HIV exposure with anemia and vitamin D inadequacy. This was a hospital-based descriptive cross-sectional study nested within the Prevention of Mother-to-Child Transmission (PMTCT) of HIV program in Hunan Province during July and September 2022. The HEU children aged 6 to 24 months were recruited from the PMTCT outpatient clinics located in five Municipal Maternal and Child Health Care Hospitals. The HUU children were recruited from routine child health examination clinics in the same five Hospitals. Questionnaires about children’s characteristics and maternal gestational conditions were collected from children’s caregivers, and blood samples were collected from all children. Descriptive statistics, Chi-square test, non-parametric rank sum test, and logistic regression were used for analysis. The study population included 336 HEU children and 334 HUU children. The overall prevalence of anemia in the HEU and HUU children was 10.4% and 8.1%, respectively. The median hemoglobin concentrations were 120 (115–126) g/L in the HEU children and 122 (116–129) g/L in the HUU children. Neither prevalence of anemia nor hemoglobin concentration was significantly different between the two groups (P > 0.05). The prevalence of vitamin D inadequacy in the HEU children (19.6% for deficiency and 25.0% for insufficiency) was significantly higher than that of the HUU children (11.4% for deficiency and 16.2% for insufficiency) (P

Li Zhou,1– 4 Cunqiao Han,5 Yue Zhou1– 4 1Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China; 2West China School of Nursing, Sichuan University, Chengdu, People’s Republic of China; 3Disaster Medical Center, Sichuan University, Chengdu, People’s Republic of China; 4Nursing Key Laboratory of Sichuan Province, Chengdu, People’s Republic of China; 5Department of Emergency Medicine, Shangjinnanfu Hospital, West China Hospital, Sichuan University, Chengdu, People’s Republic of ChinaCorrespondence: Yue Zhou, Department of Emergency Medicine, West China Hospital, Sichuan University, No. 37 Guoxue Road, Chengdu, 610041, Sichuan, People’s Republic of China, Tel +86-028-62539203, Email zhouyuesccd@163.comBackground: This study aims to investigate the association between vitamin D levels and the risk of severe acute exacerbations of chronic obstructive pulmonary disease (AECOPD).Methods: We conducted a prospective observational study with 636 COPD patients admitted for exacerbations between January 2021 and December 2022. Patients were categorized based on serum 25-hydroxyvitamin D levels: severe deficiency (< 10 ng/mL), deficiency (10– 20 ng/mL), insufficiency (20– 30 ng/mL), or sufficiency (> 30 ng/mL). Severe exacerbation was defined when the patient visits an emergency room or is hospitalized due to COPD exacerbation. Multivariate Cox regression was used to evaluate the risk associated with vitamin D deficiency.Results: Over an 18-month follow-up, 178 (28.0%) patients experienced at least one severe exacerbation. The severe deficiency group had the highest exacerbation rate (40.6%), followed by deficiency (27.8%), insufficiency (22.5%), and sufficiency (18.1%) groups (P< 0.01). Multivariate Cox regression analysis showed that severe vitamin D deficiency was significantly associated with an increased risk of severe exacerbations (HR=2.74, 95% CI: 1.55– 4.84; P< 0.01) compared to vitamin D sufficiency.Conclusion: Severe vitamin D deficiency is a significant predictor of severe COPD exacerbations, highlighting the importance of routine vitamin D assessment and supplementation in COPD management.Keywords: acute exacerbations, COPD, risk factors, vitamin D deficiency

Introduction: Polycystic Ovary Syndrome (PCOS) is a disorder characterised by various metabolic derangements with multiple origins, one of which may be linked to vitamin D metabolism. Vitamin D deficiency in individuals with PCOS not only leads to reduced bone mineralisation but also exacerbates the various symptoms associated with the condition. The role of gene variants involved in vitamin D metabolism in PCOS suggests an association with metabolic and endocrine parameters in the general population. Aim: To investigate the association of the DHCR7 gene with metabolic and endocrine parameters, including 25 Hydroxy Vitamin D {25(OH)D} levels, in women with PCOS. Materials and Methods: This was a cross-sectional study conducted in the Department of Biochemistry, Calcutta National Medical College, Kolkata, West Bengal, India, from January 2018 to February 2020. A total of 128 women with PCOS and age-matched healthy controls were enrolled. All participants were aged between 16 and 45 years. Anthropometric, metabolic, and endocrine tests were performed on both the control (n=50) and PCOS groups (case group, n=78). Polymerase Chain Reaction (PCR) with suitable primers, followed by restriction digestion using Taq1 enzyme, was used to identify Dehydrocholesterol Reductase (DHCR7) gene polymorphism in women with PCOS in Eastern India. Observations were documented regarding the associations with PCOS susceptibility. The data evaluation was conducted using Statiscal Package sfor Social Sciences (SPSS) version 20.0. A p-value

Background: Vitamin D and iron deficiencies are prevalent among Moroccan women of reproductive age (WRA). Research suggests that Vitamin D deficiency (VDD) may impair iron bioavailability, potentially leading to iron deficiency (ID) and anemia. Objectives: This study investigates associations between vitamin D status, iron levels, and anemia risk in WRA, aged 18–49, from Meknes, Morocco. Methods: A cross-sectional study was conducted among 463 participants, measuring serum 25(OH)D, blood count parameters, iron, ferritin, C-reactive protein, and creatinine. Lifestyle factors, including dietary intake, sun exposure, and physical activity, were assessed through validated questionnaires, and anthropometric data were collected. Linear and logistic regression models analyzed associations, while ROC analysis evaluated VDD’s predictive accuracy for ID and anemia. Results: VDD (25(OH)D < 20 ng/mL) was significantly associated with reduced hemoglobin, hematocrit, red blood cells, and ferritin (all p < 0.01), indicating vitamin D’s role in erythropoiesis and iron storage. Multivariate logistic regression showed that VDD increased the risk of anemia (OR: 7.17, 95% CI: 3.19–19.28, p < 0.001), ID (OR: 2.20, 95% CI: 1.32–3.77, p = 0.007), and IDA (OR: 4.10, 95% CI: 1.73–12.08, p = 0.004). Dietary iron intake was inadequate, showing minimal protective effects against anemia and ID (β(SE): −0.08(0.03), p = 0.030 and β(SE): −0.05(0.02), p = 0.037). Conclusions: VDD is a significant risk factor for impaired iron status and anemia in Moroccan WRA, highlighting the need for targeted nutritional interventions and further research.

Vitamin D deficiency affects a broad range of health-related factors. Both obesity and vitamin D deficiency are associated with the development of oxidative stress and systemic inflammation. Inflammation can culminate in decreased vitamin D levels through the induction of oxidative stress. Evidence suggests that exercise may improve vitamin D status. However, the effects of exercise interventions on inflammation and oxidative stress in the coexistence of vitamin D deficiency and obesity/overweight are not well-established. Therefore, this review aimed to evaluate the effects of exercise on inflammation and oxidative stress in vitamin D deficiency status accompanied by obesity/overweight. A search for articles from 2006 to 2023 was conducted in specialized databases of PubMed, Scopus, and state inpatient database (SID). The searched studies were original research articles, reviews, and clinical trials selected using the keywords of vitamin D deficiency, systemic inflammation, oxidative stress, chemokine, exercise, obesity, and overweight. According to the studies, regular exercise can inhibit the vicious cycle of oxidative stress-inflammation in vitamin D deficiency status accompanied by obesity/overweight by negatively regulating some inflammatory factors and chemokines, reducing lipid peroxidation levels, and increasing antioxidant status. Moreover, the increase in 25-hydroxyvitamin D levels resulting from exercise can be considered another mechanism for reducing oxidative stress-inflammation in vitamin D deficiency status accompanied by obesity/overweight.

Introduction: Vitamin D (VD) has many extra-skeletal functions, such as immune regulation. It is important to recognize its role in patients infected by the human immunodeficiency virus (HIV). The objective of this study was to determine possible correlations between serum VD levels and multiple clinical and paraclinical variables in HIV-infected patients in the city of Bogotá, Colombia.Materials and methods: An observational, cross-sectional study was carried out on 161 HIV-infected patients in the city of Bogotá. VD levels were analyzed in relation to anthropometric classification of nutritional status, clinical and metabolic profile.Results: It was found a prevalence of low VD levels of 60.87%. Statistically significant correlations were detected between VD and the time of sun exposure reported by the patient and the type of antiretroviral therapy. In addition, using a linear regression model, it was found that the use of 2 nucleoside reverse transcriptase inhibitors + 1 integrase inhibitor correlates with hypovitaminosis, even with adequate time of sun exposure. No associations were found with age, sex, race, co-morbidities, immune, or metabolic profile.Discussion: Although the pathophysiology of VD deficiency is multifactorial, low VD levels should be considered among the possible adverse effects of antiretroviral therapy and should be included in the usual follow-up of these patients.

Abstract Vitamin D is crucial for maintaining bone health and development, and bone mineral accumulation during childhood and adolescence affects long-term bone health. Vitamin D deficiency has been widely recognized as one of the main causes of osteoporosis and fractures, especially during the growth and development stage of children. Recent studies have shown that vitamin D deficiency may affect the deviation of bone development in children by mediating lipid metabolism disorders, but its specific mechanism of action has not been fully elucidated. In this study, through clinical correlation analysis, it was found that vitamin D deficiency was negatively correlated with lipid metabolism levels. Subsequently, lipidomic analysis of vitamin D-deficient mice and children showed that triglycerides were the main lipid metabolites. It was found that the triglyceride synthesis pathway plays a key role in bone development in vitamin D-deficient obese children. Our study found that vitamin D deficiency mediates bone dysplasia by affecting triglyceride synthesis. These findings provide new insights into the mechanisms by which vitamin D deficiency affects bone development in children, which may guide more precise clinical interventions and support the development of new clinical treatments.

Existing evidence suggests vitamin D may benefit serum lipid profiles and, thus, cardiovascular health. The present study aimed to evaluate the effect of oral daily vitamin D supplementation on lipid profile among patients with cardiovascular risk.

Background: Chronic low back pain has been one of the most common musculoskeletal problems from the public health perspective owing to its high impact on disability and loss of productive years. The usefulness of Vitamin D in musculoskeletal health is widely acknowledged. The relationship between chronic low back pain in women and Vitamin D status becomes an important issue in context with clothing patterns owing to various cultural, social and religious factors. While there are many studies investigating the Vitamin D status in women with low back pain yet there are limited or almost no studies evaluating this problem in context with their clothing pattern. Hence, the present study was planned to determine the association between Vitamin D levels and clothing habits in women of reproductive age group having chronic back pain without any apparent clinico-radiological pathology. Materials and Methods: A cross-sectional study was done from September 2022 to March 2024 following ethical clearance from the institutional ethics committee. Two hundred and fifty-one women in the reproductive age group were included in the study after taking informed consent. Demographic and other details related to their diet, clothing pattern, and obstetric history were taken using a pretested questionnaire. Serum 25 (OH) Vitamin D level estimation was done. Data collected were analyzed using SPSS version 26.0; appropriate tests were applied and the following results were drawn. Results: Mean age of the 251 participants who complained of chronic back pain was 33.16 ± 10.27 years. The duration of pain ranged from 6 to 36 months. Majority of patients (n = 201; 80.1%) had duration of pain 24 months (n = 3; 1.2% each), respectively. The mean duration of pain was 9.97 ± 4.60 months. Almost half (n = 124; 49.4%) of the study participants preferred to use veil, while the rest half (n = 127; 50.6%) did not. Vitamin D levels ranged from 7.2 to 99.2 ng/mL with a mean of 26.31 ± 18.75 ng/mL. The prevalence of Vitamin D deficiency, insufficiency and sufficiency was 46.2%, 21.9% and 31.9% respectively. No statistically significant association was found between the duration of pain and Vitamin D status (P = 0.347). Furthermore, factors such as age, gravida status and place of residence (urban/rural) were not found to be associated with Vitamin D deficiency. Statistically, there was a significant difference in Vitamin D status between veiled and unveiled women (P = 0.001). Conclusions: Mean Vitamin D levels did not show any significant association with age, place of residence, gravid status and duration of pain. However, veiled women had a significantly higher prevalence of Vitamin D deficiency or insufficiency compared to nonveiled women.

Ali Alsuheel Asseri Department of Child Health, King Khalid University, Abha, 62529, Saudi ArabiaCorrespondence: Ali Alsuheel Asseri, Department of Child Health, King Khalid University, Abha, 62529, Saudi Arabia, Tel +966500186013, Fax +9662418139, Email alsoheel11@kku.edu.saBackground: Evidence suggests a strong association between vitamin D status and asthma, with individuals exhibiting vitamin D deficiency demonstrating increased prevalence and severity of asthma symptoms. This study aimed to determine the prevalence of vitamin D deficiency among asthmatic children, assess the association between vitamin D status and asthma severity/control, and identify potential predictors of vitamin D deficiency in this population.Patients and Methods: This comparative cross-sectional, hospital-based study was conducted at Abha Maternity and Children’s Hospital, a tertiary care and teaching institution in southwestern Saudi Arabia, between January 2023 and May 2024.Results: A total of 331 asthmatic children and 101 non-asthmatic children were analyzed. Children with asthma had significantly lower serum vitamin D levels than those without asthma (21.5 ± 8.8 ng/mL vs 33.3 ± 13.2 ng/mL, p < 0.001). Significantly higher proportions of asthmatic children exhibited vitamin D deficiency (51.1%) and insufficiency (34.7%) compared to non-asthmatic children (19.8% and 29.7%, respectively). Serum vitamin D levels among asthmatic children showed significant negative correlations with age (r = − 0.332, p < 0.001), weight (r = − 0.292, p < 0.001), height (r = − 0.298, p < 0.001), and BMI (r = − 0.274, p < 0.001). These findings were further supported by univariate linear regression analysis. Multivariable analysis additionally confirmed age (β = − 0.66, p < 0.001) and BMI (β = − 0.25, p = 0.05) as independent predictors of vitamin D status, with older age and higher BMI associated with lower vitamin D levels. For each additional year of age, serum vitamin D decreased by an average of 0.66 ng/mL (p < 0.001) and a one-unit increase in BMI was associated with a decrease of 0.25 ng/mL in serum vitamin D (p = 0.05).Conclusion: This study found a strikingly high prevalence of vitamin D deficiency among asthmatic children in southwestern Saudi Arabia, significantly exceeding rates in controls. These findings underscore the need for widespread vitamin D screening and supplementation in this population, particularly among older, overweight asthmatic children.Keywords: children, asthma, vitamin D deficiency, Saudi Arabia, obesity

Taking into account the wide range of physiological effects of vitamin D on the human body and the dependence of its synthesis in the skin on insolation, it is of undoubted interest to study vitamin D status in various population groups in the Russian North. The purpose of this article was to investigate vitamin D levels in the blood serum of people of various age groups living in Khanty-Mansiysk, Russia. Materials and methods. The research was conducted at the clinical and biochemical laboratory of the district clinical hospital in KhantyMansiysk during the autumn–winter–spring periods of 2021, 2022 and 2023. The study involved 3120 residents of Khanty-Mansiysk (61°N), including 493 children and adolescents, 798 young people, 887 middle-aged and 942 older adults. Their serum 25(OH)D levels were determined using enzyme immunoassay; the arithmetic mean (M), standard deviation and median (Me) as well as minimum and maximum values were calculated. The obtained data were compared with the reference values. Results. Vitamin D deficiency was established in all studied groups of the population of Khanty-Mansiysk regardless of their sex, being the most pronounced in children and adolescents due to intensive growth (M = 23.5 ng/ml, Me = 22.1 ng/ml) and in older adults (M = 22.5 ng/ml, Me = 21.7 ng/ml) due to significantly declined synthesis of cholecalciferol in the skin when exposed to ultraviolet radiation. There is a need for a widespread implementation of educational programmes informing healthcare workers and the population about the importance of vitamin D for metabolism, the prevalence of conditions related to vitamin D deficiency, and the measures for hypovitaminosis D prevention, such as consuming vitamin D-rich foods and taking vitamin D supplements in combination with longer sun exposure time in the south of Russia and abroad.

Background: Vitamin D has a role in the body's calcium balance and immunodeficiency effects, and stimulates dendric cells, monocytes, T cells, macrophages in pathogenic microbes’ elimination. The variation occurrence as polymorphism on VDR might cause problem in production, transportation, and activity of vitamin D. The gap between the occurrence findings in previous studies shows that there are indication factors of VDR levels that probably associate with the T2DM range in comorbid with pulmonary tuberculosis. To determine vitamin D levels and factors associated with vitamin D deficiency in Type 2 Diabetes Mellitus (T2DM) patients with and without pulmonary Tuberculosis (TB). Method: The design of this study was cross-sectional. T2DM subjects with pulmonary TB were 45 people, and 43 people without pulmonary TB were 43 people. Sampling was done by consecutive sampling from October to December 2017. We collected data through interviews and examination of plasma vitamin D (25-OH) levels by ELISA. Data analysis using the Mann-Whitney test, and chi-square test with a confidence level of 95%. Result: There were 88 T2DM patients who met the inclusion criteria, consisting of 43 T2DM patients without pulmonary TB and 45 T2DM patients with pulmonary TB as the study subjects. There were differences in the distribution of T2DM subjects based on sex and BMI measurements. The mean plasma vitamin D levels in T2DM with pulmonary TB and T2DM without pulmonary TB were 20.08 ng/ml (SD ± 0.83 ng/ml) and 20.29 ng/ml (SD ± 0.81 ng/ml), respectively, we found no significant result in statistic (p = 0.287). Vitamin D deficiency was not associated with the incidence of pulmonary TB in T2DM, whereas female sex, age> 50 years, BMI ? 25.0 kg /m2, and duration of T2DM> 5 years were associated with vitamin D deficiency (p

Background/Objectives: Vitamin D (VD) deficiency has been associated with increased risk of gestational disorders affecting the endocrine system, immune system, and neurodevelopment in offspring. Recent studies have focused on the interaction between toxic elements and micronutrients during pregnancy. This review analyzes the potential relationships between VD levels and heavy metals in pregnant women and their offspring. Methods: A systematic review was conducted according to PRISMA 2020 guidelines, using databases such as PubMed, ScienceDirect, Cochrane Library, and Google Scholar. Boolean operators ‘AND’ and ‘OR’ were applied with terms like ‘pregnancy’, ‘vitamin D’, ‘heavy metals’, and ‘newborns’. Results: From 4688 articles, 14 studies were selected based on relevance and quality. These studies measured the levels of metals like lead (Pb), cadmium (Cd), mercury (Hg), and arsenic (As), in biological samples including maternal blood, umbilical cord blood, placenta tissue, and meconium during different stages of pregnancy, showing an inverse relationship between VD deficiency and heavy metal concentrations, which could be related to the incidence of preterm birth. Conclusions: The review highlights the importance of maintaining adequate VD levels during pregnancy, suggesting that sufficient VD may mitigate the adverse effects of heavy metal exposure, potentially reducing pregnancy-related complications.

Vitamin D deficiency is emerging as a very serious public health problem. Numerous epidemiological studies link vitamin D deficiency to the pathophysiological process of several acute and chronic diseases. Sun exposure, vitamin D supplementation, and fortification of foods with vitamin D are the present strategies adopted to tackle this epidemic. While this can be effective, recent evidence suggests the need to consider the multifaceted causation of vitamin D deficiency such as impaired liver function, kidney function, hyperparathyroidism, and endocrine dysfunction. Therapeutic fasting, a popular nutritional approach has shown to have a positive association with vitamin D levels. This perspective attempts to provide an overview of literature discussing fasting and vitamin D, the possible mechanisms behind this association, and discusses the future possibilities of using fasting as a public/clinical tool in mitigating vitamin D deficiency.

Introduction: Hypovitaminosis D plays an important role in post-operative bone pain and muscle strength in arthroplasty surgeries. Its role in unicompartmental knee arthroplasty (UKA) has not been elucidated yet. The objective of this study was to determine the impact of hypovitaminosis D and its correction on post-operative bone pain after UKA. Materials and methods: A prospective cohort study involving 240 patients undergoing mobile-bearing medial UKA was conducted. Group A (na=80) received post-operative correction of Vitamin D3 Deficiency (VDD), Group B (nb=80) received pre-operative correction of VDD, while Group C (nc=80) had normal Vitamin D3 levels to begin with (≥30ng/ml). Correction was done by three doses of intramuscular injection of 600,000 IU Arachitol® (Vitamin D3) given at an interval of one week each. All groups were matched for demography and outcome measures. The level of bone pain by checking for tibial shin tenderness quantified by the visual analog scale (VAS) and evaluated pre-operatively, and at 2, 4, 6 and 12 weeks post-operatively. Results: Group B and C showed similar post-operative trends and remained significantly superior to Group A till the 6th-week follow-up. The biostatistical difference between Group A and the other two groups started decreasing after the completion of post-operative correction regime as noticed on the 6th-week follow-up. By 12 weeks post-operatively, all three groups had similar levels of bone pain. Conclusion: Vitamin D3 serves as an important pre-operative investigation in patients undergoing UKA as it is a modifiable risk factor affecting post-operative bone pain. Its correction pre-operatively gives excellent post-operative pain control.

Eris Nurul Rahmadhini,1 Nanan Nur’aeny2 1Oral Medicine Residency Program, Department of Oral Medicine, Faculty of Dentistry, Padjadjaran University, Bandung, West Java, Indonesia; 2Department of Oral Medicine, Faculty of Dentistry, Padjadjaran University, Bandung, West Java, IndonesiaCorrespondence: Eris Nurul Rahmadhini, Oral Medicine Residency Program, Department of Oral Medicine, Faculty of Dentistry, Padjadjaran University, Jalan Sekeloa Selatan I, Bandung, West Java, 40132, Indonesia, Tel +62 8971557962, Fax +62 22 7794121, Email eris22001@mail.unpad.ac.idBackground: Silent diabetes and vitamin D deficiency are difficult to identify because the individual may not even realize they have one. Xerostomia-related burning tongue and taste changes may indicate a systemic condition such as diabetes or vitamin D deficiency.Purpose: This case report analyzes the association between diabetes, vitamin D deficiencies, and xerostomia.Case Presentation: A 44-year-old female patient complained of having a burning tongue and had lost taste for a week. Routine blood tests and assessments of the Oral Health Impact Profile-14 (OHIP-14) and Depression Anxiety Stress Scale-21 (DASS-21) showed normal results.Case Management: Therapy consists of chlorine dioxide zinc-patented mouthwash, multivitamin, petroleum jelly, and oral hygiene instructions. The symptoms decreased significantly on the second visit, but taste perception did not improve. Another complaint was that the mouth felt dry. The results of the Summated Xerostomia Inventory-Indonesian Version (SXI-ID) and Clinical Oral Dryness Scoring System (CODS) examination showed the patient had mild xerostomia and the unstimulated salivary flow rate was lower than normal. Therapy consists of applying ethyl p-hydroxybenzoate gel, neurotropic vitamins, and blood tests for Hemoglobin A1c (HbA1c) and vitamin D 25 (OH) were advised for further evaluation would be more clear. The third visit showed there were no more complaints of dry mouth, and the taste perception was getting normal. The Unstimulated salivary flow rate and CODS were normal. The patient was diagnosed with diabetes and vitamin D deficiency based on the HbA1c examination results of 11% and vitamin D 25 (OH) of 12.5 ng/mL.Conclusion: Xerostomia can indicate systemic conditions like diabetes and vitamin D deficiency. A comprehensive examination is carried out so the patient can receive optimal treatment.Keywords: burning tongue, diabetes, taste changes, xerostomia, vitamin D deficiency

Background: Vitamin D supplementation to prevent Metabolic Syndrome (MetS) has been widely implemented in developed countries and is now being introduced in developing countries. However, recent studies have shown no association between vitamin D and MetS in adults. Objectives: This study aims to obtain a profile of vitamin D values ​​in adults and explore vitamin D status in MetS patients, MetS components, and healthy adults. Methods: This research design was a cross-sectional study, utilizing both secondary and primary data from the research on the Risk Factors for Non-Communicable Diseases (RF-NCD) longitudinal study in 2021. Serum 25(OH)D levels in 956 adult respondents were determined by Enzyme-linked Immune Assay (ELISA) analysis using Stored Biological Material (SBM) serum from the 2021 RF-NCD longitudinal study. The ANOVA test was used to determine differences in vitamin D levels in various physiological conditions of respondents (MetS, MetS components, and healthy people). Results: A total of 68.5% of respondents had inadequate (deficiency and insufficiency) serum vitamin D levels, with an average of 26.5 ng/mL. The average vitamin D levels between MetS patients, MetS components, and healthy people were not significantly different (p-value>0.05). However, the number or percentage of respondents with 25(OH)D deficiency in the MetS group (12.1%) was higher than other physiological conditions. Conclusions: Most of the respondents in this study have inadequate vitamin D levels. The average vitamin D levels did not differ between physiological conditions. Further studies are needed on other micronutrient factors that affect the incidence of MetS and its components.

Beili Shen, Bianling Liu, Yanhui Wang, Rui Wang, Dongfeng Gu The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People’s Hospital), Zhengzhou, Henan, 450003, People’s Republic of ChinaCorrespondence: Dongfeng Gu, Department of Nephrology, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People’s Hospital), No. 33 Huanghe Road, Zhengzhou, Henan, 450003, People’s Republic of China, Tel +86-371-67077643, Email gudongfengzz@163.comPurpose: Deficiency in vitamin D is associated with adverse outcomes in several health conditions. However, the specific impact of vitamin D levels on mortality in acute kidney injury (AKI) patients remains inadequately explored. This study aims to investigate the association between serum vitamin D concentrations and mortality risk in critically ill patients diagnosed with AKI. We hypothesize that severe vitamin D deficiency is associated with an increased risk of 90-day all-cause mortality in these patients.Patients and Methods: This study retrospectively enrolled 259 adult AKI patients admitted to the intensive care unit (ICU) at The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People’s Hospital) between July 2021 and June 2023. Based on 25-hydroxyvitamin D (25-OHD) levels, they were categorized into 4 groups: severe deficiency (< 10 ng/mL), deficiency (10– 20 ng/mL), insufficiency (20– 30 ng/mL), and sufficiency (> 30 ng/mL). Multivariate survival analysis using Cox’s regression model was used to analyze the impact of vitamin D concentrations on the 90-day all-cause mortality risk after controlling for potential confounders.Results: The 90-day all-cause mortality rate was the highest in patients with severe deficiency (50.8%), followed by those with deficiency (35.0%), insufficiency (23.9%), and sufficiency (12.2%). Multivariate Cox regression showed that compared with sufficiency, severe deficiency (HR=3.34, 95% CI: 1.14– 9.77; P=0.03) was independently associated with a higher risk of 90-day all-cause mortality, but deficiency and insufficiency were not significantly associated with 90-day all-cause mortality risk.Conclusion: Severe vitamin D deficiency (< 10 ng/mL) significantly increases the risk of mortality in AKI patients, underlining the need for monitoring and potentially supplementing vitamin D in this population.Keywords: acute kidney injury, vitamin D deficiency, mortality, prognosis

Vitamin D is crucial for normal body metabolism. Two important vitamin D sources are synthesis in the lower layers of the skin (90%) and diet (10%). This systematic review and meta-analysis attempted to determine the incidence of vitamin D deficiency in Pakistan by using the findings of numerous cross-sectional studies. For subgroup analysis, a population-based subgroup analysis and a geographical location-based subgroup analysis were done. Different search techniques were utilized on various databases using the terms “vitamin D deficiency,” “Pakistan,” and “prevalence.” The article names and abstracts were scrutinized, and associated complete texts were evaluated. The articles that satisfied the inclusion requirements were chosen for the meta-analysis. The I2 test was used to determine heterogeneity. They were combined with the random-effect method. Out of 429 articles, 37 studies, with a total sample size of 19,338, were selected for the final analysis. The highest and lowest reported percentages observed were 100% and 15%, respectively. The overall pooled prevalence reported was 78% (95% CI = 74.2–82%). In subgroup analysis, children/adolescents showed a higher pooled prevalence of 84% (95% CI = 76.1–93.6%), and among province-wise subgroup analysis, Punjab province has shown a higher pooled prevalence of 84% (95% CI: 74–94%). Meta-analysis of the data showed a higher proportion of the population with deficient states. Interventions in public health are essential to address the high incidence of vitamin D insufficiency. Vitamin D levels can be increased, and related health concerns can be minimized through dietary supplementation, recommended sun exposure, and awareness initiatives.

Background. Numerous studies demonstrate associations between serum concentrations of 25-hydroxyvitamin D (25[OH]D) and a variety of common disorders, including musculoskeletal, metabolic, cardiovascular, malignant, autoimmune, and infectious diseases. Although a causal link between serum 25(OH)D concentrations and many disorders has not been clearly established, these associations have led to widespread supplementation with vitamin D and increased laboratory testing for 25(OH)D in the general population. The benefit-risk ratio of this increase in vitamin D use is not clear, and the optimal vitamin D intake and the role of testing for 25(OH)D for disease prevention remain uncertain. Objective. To develop clinical guidelines for the use of vitamin D (cholecalciferol [vitamin D3] or ergocalciferol [vitamin D2]) to lower the risk of disease in individuals without established indications for vitamin D treatment or 25(OH)D testing. Materials and methods. A multidisciplinary panel of clinical experts identified and prioritized 14 clinically relevant questions related to the use of vitamin D and 25(OH)D testing to lower the risk of disease. The panel prioritized randomized placebo-controlled trials in general populations (without an established indication for vitamin D treatment or 25[OH]D testing), evaluating the effects of empiric vitamin D administration throughout the lifespan, as well as in select conditions (pregnancy and prediabetes). The panel defined “empiric supplementation” as vitamin D intake that exceeds the Dietary Reference Intakes (DRI) and is implemented without testing for 25(OH)D. Systematic reviews queried electronic databases for publications related to these 14 clinical questions. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology was used to assess the certainty of evidence and guide recommendations. The approach incorporated considered patient values, costs and resources required, acceptability and feasibility, and impact on health equity of the proposed recommendations. Results. The panel suggests empiric vitamin D supplementation for children and adolescents aged 1 to 18 years to prevent nutritional rickets and because of its potential to lower the risk of respiratory tract infections; for those aged 75 years and older because of its potential to lower the risk of mortality; for those who are pregnant because of its potential to lower the risk of preeclampsia, intra-uterine mortality, preterm birth, small-for-gestational-age birth, and neonatal mortality; and for those with high-risk prediabetes because of its potential to reduce progression to diabetes. Because the vitamin D doses in the included clinical trials varied considerably and many trial participants were allowed to continue their own vitamin D–containing supplements, the optimal doses for empiric vitamin D supplementation remain unclear for the populations considered. For nonpregnant people older than 50 years for whom vitamin D is indicated, the panel suggests supplementation via daily administration of vitamin D, rather than intermittent use of high doses. The panel suggests against empiric vitamin D supplementation above the current DRI to lower the risk of disease in healthy adults younger than 75 years. No clinical trial evidence was found to support routine screening for 25(OH)D in the general population, nor in those with obesity or dark complexion, and there was no clear evidence defining the optimal target level of 25(OH)D required for disease prevention in the populations considered; thus, the panel suggests against routine 25(OH)D testing in all populations considered. The panel judged that, in most situations, empiric vitamin D supplementation is inexpensive, acceptable to both healthy individuals and health care professionals, and has no negative effect on health equity. Conclusions. The panel suggests empiric vitamin D for those aged 1 to 18 years and adults over 75 years of age, those who are pregnant, and those with high-risk prediabetes. Due to the scarcity of natural food sources rich in vitamin D, empiric supplementation can be achieved through a combination of fortified foods and supplements that contain vitamin D. Based on the absence of supportive clinical trial evidence, the panel suggests against routine 25(OH)D testing in the absence of established indications. These recommendations are not meant to replace the current DRIs for vitamin D, nor do they apply to people with established indications for vitamin D treatment or 25(OH)D testing. Further research is needed to determine optimal 25(OH)D levels for specific health benefits.

Abstract This study explored the factors influencing serum 25(OH)D3 levels and the effects of Vitamin D deficiency (VDD) and VD supplementation on 25(OH)D3 levels and neuropsychobehavioral development in premature infants, to provide a theoretical basis for improving their prognosis. Physical examination, neuropsychobehavioral development and serum 25(OH)D3 levels were assessed regularly in 158 preterm infants supplemented with VD formulation. 25(OH)D3 levels were analyzed at 3, 6, 9, 12, and 18 months after birth. The Gesell neuropsychological development test was conducted at 6, 9, 12, and 18 months after birth to obtain the developmental quotient (DQ). Based on the serum 25(OH)D3 levels at 42 days of age, the infants were divided into VDD and non-VDD groups. Preterm infants in the VDD group were supplemented with more VD until their 25(OH)D3 levels were normal, and were divided into sustained VDD (SVDD) and corrected VDD (CVDD) groups according to serum 25(OH)D3 levels at 3 months of age. Appropriate statistical methods were chosen to compare differences in 25(OH)D3 and DQ between or among different groups, screen for the factors influencing 25(OH)D3 levels in preterm infants at 42 days of age, and analyze the relationship between 25(OH)D3 and DQ. The 25(OH)D3 levels of preterm infants at 42 days of age were positively correlated with VD supplementation during pregnancy, and before 42 days after birth (P

Abstract Objective This study aims to explore the association between the triglyceride-glucose (TyG) index and vitamin D status to enhance our understanding of how vitamin D status relates to metabolic health and to provide evidence for the early diagnosis of vitamin D deficiency (VDD) using the TyG index. Methods We conducted a comprehensive search in various databases, including PubMed, Web of Science, Embase, Cochrane Library, China National Knowledge Infrastructure (CNKI), China Biology Medicine disc, China Science and Technology Journal Database, and Wanfang Data to gather articles published from the inception of these databases until February 19, 2024. We assessed the quality of included studies using the Newcastle-Ottawa Scale (NOS) for case-control studies and the Agency for Healthcare Research and Quality (AHRQ) methodology checklist for cross-sectional studies. Statistical analyses in this study were conducted using conversion methods for non-standard data formats and consolidation techniques for combining multiple groups. The Fisher transformation method was used for correlation coefficients. We used a random-effects model considering the inherent clinical heterogeneity among the studies, and assessed statistical heterogeneity with the Cochrane Q test and I2 statistic, complemented by subgroup analyses and sensitivity analysis. Results Our meta-analysis selected a total of nine studies. The analysis revealed that patients with vitamin D deficiency (VDD group) exhibited a significantly higher TyG index than those without deficiency (no-VDD group), with a mean difference (MD) of 0.16 (95% CI: 0.10 to 0.23, I2 = 93%). This association was particularly pronounced among patients with type 2 diabetes (T2DM), showing an MD of 0.15 (95% CI: 0.05 to 0.26, I2 = 55%). Additionally, a negative correlation was observed between the TyG index and vitamin D levels, with a correlation coefficient (r) of -0.236 (95% CI: -0.310 to -0.159, I2 = 91%). Excluding each study sequentially in the sensitivity analyses did not significantly alter the outcomes. Conclusions Our findings demonstrate a significant association between the TyG index and vitamin D status across diverse populations, including those with T2DM, subclinical hypothyroidism (SCH), and metabolic associated fatty liver disease (NAFLD). Our results reveal a notable disparity in the TyG index between vitamin D deficient and non-deficient groups, suggesting that vitamin D may play a critical role in metabolic health. These findings highlight the need for further research to explore the underlying mechanisms and clinical implications of vitamin D in the context of various metabolic disorders.

Background Vitamin D plays a crucial role in the regulation of inflammation. However, its effect on the development of otitis media effusion (OME), an inflammatory disease of the middle ear without signs of infection, remains largely unknown. Objective To assess the association between vitamin D deficiency and OME in children by systematic review and meta-analysis of the literature. Methods Eligible studies retrieved from PubMed, ProQuest, Embase, Cochrane databases and trial registries published up to 30 October 2022 were included in this review. The risk of bias of the included articles was assessed with the JBI Critical Appraisal Checklist for observational studies. The certainty of evidence was assessed with the Grading of Recommendations Assessment, Development and Evaluation framework. Results We included eight studies (six case-control and two cross-sectional studies) involving 1,114 children, of which four studies were eligible for meta-analysis due to the significant clinical heterogeneity. We found that vitamin D deficiency (defined as vitamin D concentration of 20 ng/mL or less, i.e., ?50 nmol/L) might increase the odds of developing OME by 66.0% (n=514; OR 1.66; 95%CI 1.09 to 2.54; I2=20%), albeit with a very low certainty of evidence. Conclusion There is a very low quality of evidence indicating that vitamin D deficiency is associated with the development of OME in children. Further large, high-quality cohorts and adjusting for confounding factors are warranted to confirm our findings, ideally by exploring the dose-response relationship between vitamin D concentration and the development of OME.

Background Recurrent pregnancy loss (RPL) is a common problem affecting many women. This study aimed to investigate the baseline characteristics of 400 women with RPL and to examine any differences in baseline characteristics of the recruited women with RPL throughout the years. Methods This study used retrospective data, which included the records of patients with RPL who visited King Khalid University Hospital’s obstetric clinic between 2019 and 2022. The records of 400 patients who met the inclusion criteria were reviewed and analyzed. Results The mean age of enrolled women was 36.5 ± 5.4 years, and the mean RPL was 3.8 ± 2.5. The study also revealed that there were significant statistical differences in obesity and vitamin D deficiency among women with RPL based on year (P = 0.013 and P = 0.036, respectively), whereas no significant statistical differences were found between women with RPL in terms of age, parity, diabetes, hypothyroidism, hyperprolactinemia, antiphospholipid antibodies (APLs), uterine malformation, or consanguinity. Conclusion Advanced maternal age, number of previous miscarriages, parity, diabetes, hypothyroidism, APLs, uterine malformations, first-degree consanguinity, and vitamin D deficiency were found to be significant risk factors associated with RPL among women in Saudi Arabia.

INTRODUCTION: Vitamin D deficiency is a common public health issue worldwide. The purpose of this study was to investigate the vitamin D status and its potential determinants in children residing in Sardinia (40°N), Italy. METHODS: Children were enrolled over a 12-month period. Serum 25(OH)D was measured by an immunochemiluminescence assay. A questionnaire was used to gather information on other variables, including passive smoke exposure. RESULTS: A total of 182 children (males: 51.7%; median age: 9 years) were included. Mean±standard deviation serum 25(OH)D was 25.2±8.3 ng/mL for the whole group. The majority (n=123, 67.6%) had vitamin D sufficient values >20 ng/mL, while 32.4% (n=59) had vitamin D insufficient/deficient values (≤20 ng/mL). Among the variables investigated, passive smoke exposure was significantly associated with insufficient 25(OH)D levels (p

Abstract Background The rate of vitamin D deficiency (VDD) in critically ill children worldwide has been estimated at 50%. These children are at risk of multiple organ dysfunction, chronic morbidity, and decreased health related quality of life (HRQL). Pediatric and adult ICU clinical trials suggest that VDD is associated with worse clinical outcomes, although data from supplementation trials are limited and inconclusive. Our group’s phase II multicenter dose evaluation pilot study established the efficacy and safety of an enteral weight-based cholecalciferol loading dose to rapidly restore vitamin D levels in critically ill children. Methods Our aim is to evaluate the impact of this dosing regimen on clinical outcomes. VITdALIZE-KIDS is a pragmatic, phase III, multicenter, double-blind RCT aiming to randomize 766 critically ill children from Canadian PICUs. Participants are randomized using a 1:1 scheme to receive a single dose at enrollment of enteral cholecalciferol (10,000 IU/kg, max 400,000 IU) or placebo. Eligibility criteria include critically ill children aged newborn (> 37 weeks corrected gestational age) to

Abstract Vitamin D deficiency is an emerging public health problem globally, with devastating health consequences. Some studies suggest that exogenous sex hormones, found in hormonal contraceptives, may enhance vitamin D levels. However, the reasons for this association are not fully understood, as women using hormonal contraception may have different lifestyle habits affecting their vitamin D status. Therefore, this study seeks to explore the relationship between hormonal contraceptive use and vitamin D levels. A Facility based comparative cross-sectional study was conducted in Gondar town from February to April 2023, involving a total of 162 women using three types of hormonal contraceptives (Norplant, DMPA, and COC) and 162 age and BMI-matched non-users as controls in a 1:1 ratio. Participants were selected using systematic random sampling. A semi-structured questionnaire was used to collected data regarding the socio-demographic, economic, obstetric, lifestyle, and clinical information. 5 milliliters of blood samples were collected from each participant for Laboratory analysis of serum vitamin D, calcium, and alkaline phosphates using a Beckman Coulter chemistry analyzer. Independent t-tests, ANOVA with post hoc Bonferroni test was used to compare statistics between the two groups, and logistic regression models to identify factors associated with Vitamin D deficiency. The mean serum Vitamin D levels of Norplant, DMPA, and COC users were 24.08 (± 5.17), 24.83 (± 5.52), and 31.90 (± 6.94) respectively; whereas control group has mean Vitamin D level of 22.00 (± 7.97). On the current study the prevalence of Vitamin D deficiency (

Background: Osteoarthritis is a common chronic disease that affects quality of life and increases public health costs. Knee osteoarthritis is a frequent form, marked by joint degeneration, pain, stiffness, and functional restrictions. Factors such as age, genetics, joint injuries, obesity, and vitamin D deficiency can affect knee osteoarthritis progression. While the exact link between vitamin D and osteoarthritis is still being studied, recent research indicates that low vitamin D levels might influence the articular cartilage’s structure and function, potentially accelerating osteoarthritis. This review aims to analyze the last decade of research on vitamin D’s role in osteoarthritis. Methods: A systematic review of the literature was conducted in accordance with the PRISMA guidelines (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Relevant studies from the last ten years were included to evaluate the association between vitamin D levels and knee osteoarthritis. The inclusion criteria were studies examining the role of vitamin D in cartilage health and osteoarthritis progression and the potential clinical implications for disease management. Results: This review identified a variety of studies exploring the connection between vitamin D and osteoarthritis, with mixed findings. Conclusions: The relationship between vitamin D and knee osteoarthritis remains inconclusive, highlighting the need for further research. An updated evaluation of the literature is crucial for osteoarthritis management strategies and to potentially include vitamin D supplementation in therapeutic protocols.

OBJECTIVE: To compare the frequency of vitamin D levels between cirrhotic and non-cirrhotic liver disease patients. METHODOLOGY: This retrospective comparative cross-sectional study compressed 296 diagnosed chronic liver disease patients who visited the Department of Gastroenterology at the Aga Khan University Hospital in Karachi, fulfilling the study inclusion criteria. Demographic and clinical characteristics such as age, sex, disease duration, etiology and severity of all patients were obtained. Cirrhotic status and vitamin D levels were noted. Data was analyzed on Statistical Package for Social Sciences (SPSS), Version 22. RESULTS: The mean age was 41.48+/-9.88 years, and the mean vitamin D level in chronic liver disease patients was 14.61+/-8.37 (ng/ml). In cirrhosis and non-cirrhosis patients, mean vitamin D levels were (12.97 vs 16.08; P: 0.001), respectively. Significantly reduced levels were observed in Cirrhotic patients. In cirrhotic patients, vitamin D deficiency was more prevalent than the non-cirrhotic group (80.7% vs 66%; P: 0.004); overall, 73% of chronic liver disease patients were diagnosed as vitamin D deficient. CONCLUSION: In chronic liver disease patients, liver cirrhosis increases the likelihood of vitamin D deficiency. Factors like young age, male sex, and etiology (hepatitis C virus) strongly correlate with vitamin D deficiency. Furthermore, patients with advanced liver disease are more prone to be vitamin D deficient.

Introduction: Vitamin D deficiency has become the new normalcy due to rapid transition of lifestyles among the people globally. Vitamin D is synthesized in the body due to exposure of skin to sunlight. Correction of vitamin D deficiency poses a major demand due to its action on bone and muscle health. The objective of this study is to assess the effectiveness of sun exposure and Vitamin D supplement and Vitamin D supplements alone on serum vitamin D levels among the under-fives. Methods: This protocol is a randomized controlled study planned to be carried out among the under-five children with vitamin D deficiency. Children will be randomised into two groups (Group 1 -Vitamin D supplementation only) and (Group 2 - vitamin D supplementation +sun exposure). Both the group will receive intervention for 12 weeks and Serum Vitamin D levels will be tested after 12 weeks. Descriptive and inferential statistics will be used to present the findings of the study. Conclusion: Identification and treatment of Vitamin D deficiency is vital in children`s bone health. This protocol will provide direction and guidance to optimize utilization of treatments to improve vitamin D deficiency among under five children.

Objectives: Findings regarding the effects of vitamin D supplementation on diabetes risk are inconclusive. Because inflammation and vitamin D levels are interconnected, we hypothesized that higher inflammation levels moderate the effects of vitamin D deficiency on diabetes risk. Design, setting, participants, and measurements: UK Biobank participants without pre-existing diabetes at baseline were included (N = 336,500). We first linked vitamin D and C-reactive protein (CRP; inflammation measure) levels with incident diabetes during a mean follow-up of 13.5 years (SD = 1.9). Then, we investigated the moderation effect of CRP on the associations between vitamin D deficiency (

PurposeTo understand the status of vitamin D deficiency in girls with growth and developmental variations, as well as the impact of COVID−19 on their vitamin D levels, and to provide reference for the prevention and treatment of vitamin D deficiency in children.MethodsA retrospective analysis was conducted on 1,345 instances of girls with growth and developmental variations who visited our pediatric endocrinology department and completed vitamin D detection. A total of 279 girls with complete data were included in this study. Among them, 246 girls were classified into four groups based on different growth and developmental variations: early puberty group, menarche group, obesity group, short stature group, and 33 healthy girls served as the control group. Besides, the girls were divided into pre-epidemic and post-epidemic groups by the occurrence of the COVID-19 epidemic. Vitamin D were measured in all girls. The 25(OH)D 0.05).ConclusionGirls with early puberty, menarche, and obesity have a certain deficiency of vitamin D levels, and appropriate vitamin D treatment should be provided clinically. Girls with short stature and healthy girls also have certain levels of vitamin D deficiency, and awareness of prevention should be strengthened.

BackgroundPatients with chronic kidney disease (CKD) have an elevated risk of both vitamin D deficiency (VDD) and depression. However, the relationship between VDD and the risk of depression in this population remains unclear.MethodsUsing the TriNetX network database (2010–2019), we conducted a propensity score-matched cohort study of CKD patients aged ≥50 years. Patients were categorized into VDD (≤20 ng/mL) and control (≥30 ng/mL) groups based on measurements within 3 months of CKD diagnosis. The primary outcome was the incidence of major depression within 1 year of follow-up.ResultsAmong 17,955 matched pairs, VDD was associated with increased depression risk at 1 year (hazard ratio [HR]: 1.929; 95% confidence interval [CI]: 1.52–2.448; p

Low vitamin D status is linked to disturbance in cognitive performance. This study explored possible ways how composition and functional capacity of the gut microbiome affects vitamin D metabolism, directing serum vitamin D (VitD) levels and memory impairmets. It was found that gut microbiome composition, characterized by an increase in the relative abundance of Enterococcus and correlated with vitamin D deficiency and, as consequence, with memory impairments. A key mechanism identified in the study was the differential utilization of short-chain fatty acids (SCFAs) produced by gut bacteria as substrates for synthesizing vitamin D3 precursor in the skin. This finding confirms a complex interplay between the gut microbiome, host metabolism, and cognitive health, highlighting the potential significance of targeting Enterococcus dysbiosis in future preventive and therapeutic strategies to address VitD deficiency-related memory impairments. These results underscore the importance of understanding and modulating gut microbiome composition to optimize VitD status and cognitive function.

BackgroundThe aim of the present study was to investigate the impact of serum VD status on IVF outcomes and to observe the effect of VD deficiency on the expression of the endometrial receptivity marker HOXA10.Materials and methodsPatients undergoing their first IVF cycles were divided into 3 groups according to VD levels (deficient:

ObjectiveTo investigate the prevalence of vitamin D deficiency (VDD) in children/adolescents in extreme southern China.MethodsThis multicenter, cross-sectional study included 21,811 children aged 0–18 years from 18 districts in Hainan Province, using a multistage stratified random sampling method from January 2021 to March 2022.ResultsSerum 25(OH)D levels decreased with age (p trend

The occurrence of sarcopenia is closely related to chronic kidney disease. In recent years, the incidence rate of sarcopenia in chronic kidney disease patients has increased significantly, affecting the prognosis of the disease. In recent years, studies have found that the occurrence of sarcopenia in chronic kidney disease is related to factors such as chronic inflammation, oxidative stress, mitochondrial dysfunction, abnormal hormone levels, insulin resistance, excessive angiotensin Ⅱ, vitamin D deficiency, hemodialysis, and movement disorders. This article provides a review of its pathogenesis.

ABSTRACT Background and Aims Seborrheic dermatitis (SD) is a chronic inflammatory skin condition that affects patients' quality of life. Emerging evidence suggests that vitamin and mineral deficiencies may contribute to its progression, although the exact etiology remains unclear. Objective This case‐control study assessed the serum levels of vitamin D and zinc in SD patients compared to a healthy control group, with a focus on how these deficiencies relate to disease severity. Methods A total of 71 SD patients and 71 healthy controls participated, providing demographic data and blood samples. Disease severity was evaluated using the SEDASI scoring system. Serum vitamin D and zinc levels were measured using ELISA and photometric methods, respectively. Statistical analysis was performed using t‐tests and chi‐square tests in SPSS 24, with groups matched for demographic variables (p > 0.05). Results Findings revealed no significant difference in vitamin D levels between SD patients and the control group (p = 0.066). However, zinc levels were notably lower in the SD group (p = 0.001). Additionally, vitamin D levels were inversely related to the severity of SD (p = 0.022), while no correlation was found between zinc levels and disease severity (p = 0.664). Conclusion Zinc deficiency appears to play a role in SD pathogenesis, while lower vitamin D levels are associated with increased disease severity. These findings highlight the need for further research into the potential therapeutic role of nutrient supplementation in managing SD.

Vitamin D, often referred to as the “sunshine vitamin,” is an essential fat-soluble vitamin that plays a critical role in bone health and has been shown to improve insulin sensitivity and glucose tolerance. Vitamin D deficiency is prevalent among pregnant and pre-pregnancy women, which increases the risk of developing gestational diabetes mellitus (GDM), a common complication during pregnancy. Recent studies have explored various aspects of the relationship between vitamin D deficiency and GDM, including the mechanisms by which vitamin D affects glucose metabolism, the role of the vitamin D receptor gene, and the impact of routine vitamin D supplementation before and during pregnancy. This paper will review the current research progress in these areas.

Abstract Objectives: to analyze the prevalence of vitamin D deficiency and insufficiency among adolescents in northern Minas Gerais, identifying associated factors. Methods: cross-sectional study, with a sample by clusters of adolescents, probabilistic allocation, according to school, sex and age, in 2016. Sociodemographic and anthropometric characteristics, lifestyle and dietary habits, morbidities, use of medications and cardiovascular risk factors were evaluated. Vitamin D deficiency was defined as values ≤20 ng/mL, insufficiency as values >20 and

Acne vulgaris is a common dermatological condition affecting millions worldwide, particularly adolescents and young adults. Recent research suggests a potential link between vitamin D levels and acne severity, highlighting the role of vitamin D in immune regulation and inflammation. This review analyzes studies published from 2020 onward, focusing on the relationship between vitamin D deficiency and acne, as well as the therapeutic potential of vitamin D supplementation. A systematic search on PubMed identified 10 significant studies, including 7 original research articles and 3 systematic reviews or meta-analyses. The findings indicate a notable prevalence of vitamin D deficiency among acne patients, with several studies showing significantly lower serum 25-hydroxyvitamin D levels compared to healthy controls. Furthermore, clinical trials demonstrated that topical vitamin D can effectively reduce inflammatory markers, suggesting its therapeutic potential. Despite these findings, the relationship between vitamin D levels and acne severity is complex, with some studies showing no significant correlation. This inconsistency underscores the need for further investigation into the mechanisms linking vitamin D deficiency to acne. Overall, this review emphasizes the potential of vitamin D as a therapeutic target in acne management and calls for more robust studies to clarify its role in mitigating acne-related inflammation and improving patient outcomes.

Introduction Hypertension is one of the most common chronic diseases, and its prevalence continues to rise. Among the lesser-known factors contributing to the increased incidence of hypertension is vitamin D deficiency. Vitamin D, primarily known for its role in calcium and phosphate metabolism, has been implicated as one of the factors influencing cardiovascular function. Aim of the study The objective of this review is to analyze the current literature regarding the impact of vitamin D supplementation on blood pressure levels. Materials and Methods This review incorporates literature from the PubMed database, which was searched using the keywords "hypertension" and "vitamin D." Randomized controlled trials published between 2020 and 2024 were included. Results The literature review reveals various aspects of the relationship between vitamin D supplementation and blood pressure regulation. Hypertension remains one of the most prevalent chronic diseases, with its frequency consistently rising. Despite the development of new treatment methods, many patients still fail to achieve effective blood pressure control, posing a significant challenge to healthcare. Increasing evidence suggests that vitamin D may play a role in regulating blood pressure, which is particularly relevant given the widespread deficiency of this vitamin in global populations. Vitamin D deficiency is a common issue affecting a substantial portion of society, making the topic of supplementation and its potential effects even more urgent. Conclusion There is evidence to suggest potential benefits of vitamin D supplementation on blood pressure regulation, although the study results are inconclusive and do not yet support definitive clinical recommendations.

Background: Available epidemiological data on vitamin D status in the Ukrainian population are limited. Objective: The aim of this study is to investigate the prevalence of vitamin D deficiency in Ukraine. Methods: This multicentre cross-sectional study included a total of 11,462 participants: 1530 children with a median age 10 years, (IQR 6–14) and 56.21 % of them were female; 9932 adults with a median age of 36 years (IQR 26–48) and 78.72 % of them were female. Serum 25-hydroxyvitamin D (25(OH)D) levels were measured once by chemiluminescent immunoassay (UniCel DxI 800 Access Immunoassay System, Beckman Coulter Inc., USA) in the period of January–December 2021 in Kyiv and Kyiv Oblast. The cut-offs were: vitamin D deficiency,

Central precocious puberty (CPP) is an endocrine disease in children, characterized by rapid genital development and secondary sexual characteristics before the age of eight in girls and nine in boys. The premature activation of the hypothalamic-pituitary-gonadal axis (HPGA) limits the height of patients in adulthood and is associated with a higher risk of breast cancer. How to prevent and improve the prognosis of CPP is an important problem. Vitamin D receptor (VDR) is widely expressed in the reproductive system, participates in the synthesis and function of regulatory sex hormones, and affects the development and function of gonads. In addition, gut microbiota plays an important role in human health by mainly regulating metabolites, energy homeostasis, and hormone regulation. This review aims to clarify the effect of vitamin D deficiency on the occurrence and development of CPP and explore the role of gut microbiota in it. Although evidence on the interaction between vitamin D deficiency, gut microbiota, and sexual development remains limited, vitamin D supplementation and gut microbiota interventions offer a promising, non-invasive strategy for managing CPP.

Introduction: In Thailand, the assessment of vitamin D status by measuring 25-hydroxyvitamin D[25(OH)D] levels in individuals at risk for osteoporosis is constrained by limited facilities and high costs. This study aimed to create a clinical model for predicting vitamin D deficiency in women with osteoporosis or risk factors for osteoporosis. Materials and Methods: This was a cross-sectional study of 490 women. All participants had 25(OH)D levels measured. A questionnaire was used to assess factors related to vitamin D status. Vitamin D deficiency was defined as 25(OH)D levels

Introduction: The effect of vitamin D status after bariatric surgery on postoperative skeletal muscle condition has not been adequately studied. Methods: Clinical data from 83 patients (median age 44 years, BMI 40.4 kg/m2) who underwent sleeve gastrectomy (SG) were collected from medical records and analyzed retrospectively. Of the 83 patients, 37 who received continuous guidance on native vitamin D3 supplementation from before to 12 months after surgery were defined as the vitamin D supplementation (VDS) group, and 46 patients who did not receive such guidance as the control group. Native vitamin D3 supplement was provided by a dietitian at preoperative and postoperative visits. The supplementation dose was prescribed at 3000 IU/day after SG. Results: In VDS group, blood 25-hydroxyvitamin D (25OHD) level increased significantly from 18.5 at baseline to 29.7 ng/mL at 3 months after surgery and plateaued, while 25OHD level remained low in the control group. In the analysis that included both groups, change in 25OHD level from baseline to 12 months after surgery correlated significantly with mean vitamin D intake (r = 0.596, p