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Insufficient vitamin D levels occur in 88.1% of the worlds population, which constitutes a global public health problem. We analyzed vitamin D deficiency and suggested vitamin D supplementation in the perinatal health of pregnant women living in geographical areas higher than 40° south-north latitude according to reviews from the last three decades and identifying midwives role. The methodology used was a qualitative systematic review of full text studies, conducted in geographical areas higher than 40°N and 40°S. Descriptors such as: "deficiency", "vitamin D", "pregnancy", "causes", "perinatal outcomes" and "supplementation", and their respective descriptors in Spanish. The matrices were tabulated according to the modified PRISMA. Eight studies were obtained in English from the Northern Hemisphere only, mostly with good quality evidence and related to the role of midwifing according to the expert round. The results showed risks such as: origin of the pregnant woman, ethnicity, low sun exposure, obesity, socioeconomic status, and perinatal risks. No studies were found in pregnant women from the Southern Hemisphere or related to the role of the midwife in this area. In conclusion, midwifery should considerer the social determinants of vitamin D deficiency in pregnant women, especially those in extreme southern areas where incorporation of supplementation are suggested as a public policy.
Los niveles insuficientes de vitamina D se dan en el 88,1% de la población mundial, lo que constituye un problema de salud pública global. Se analizó la deficiencia y la sugerencia de suplementación de vitamina D en la salud perinatal de las gestantes residentes en áreas geográficas de latitud 40° sur-norte según revisiones de las últimas tres décadas identificando el rol de la matrona. La metodología utilizada fue una revisión sistemática cualitativa de estudios a texto completo, realizados en áreas geográficas mayores al paralelo 40°N y 40°S. Descriptores como: "deficiencia", "vitamina D", "embarazo", "causas", "resultados perinatales" y "suplementación", y sus respectivos descriptores en español. Las matrices se tabularon según el PRISMA modificado. Se obtuvo ocho estudios en inglés pertenecientes sólo al hemisferio norte, la mayoría con buena calidad de evidencia. Los resultados arrojaron factores como origen de la embarazada, etnia, baja exposición al sol, obesidad, nivel socioeconómico y riesgos perinatales. No se encontraron estudios en mujeres embarazadas del hemisferio sur o relacionados con el papel de la matrona. En conclusión, desde el ejercicio de la matronería se deben considerar los determinantes sociales de las mujeres embarazadas especialmente de zonas extremas del sur donde se sugiere investigación experimental e incorporación de la suplementación como política pública.
Subject(s)
Humans , Female , Pregnancy , Vitamin D/administration & dosage , Vitamin D Deficiency/prevention & control , Midwifery , Risk Factors , Perinatal Care , Extreme WeatherABSTRACT
Resumen Antecedentes: Las políticas de confinamiento domiciliario durante la pandemia de COVID-19 limitaron la exposición solar y pudieron influir en los niveles de vitamina D. Objetivo: Evaluar los cambios en 25(OH)D durante la pandemia de COVID-19 y el impacto del aislamiento social, preventivo y obligatorio (ASPO) en la dosis recomendada de radiación UV modificada por las nubes para la síntesis de vitamina D (UVDVC). Material y métodos: Se realizó un estudio retrospectivo de 15 908 pacientes en quienes se determinó el nivel de 25(OH)D entre enero de 2019 y diciembre de 2021 en un laboratorio centralizado en Rosario, Argentina. Resultados: Se constataron niveles más bajos de 25(OH)D en menores de 40 años durante 2020, así como una variación durante el período pandémico, con menores valores en la primera ola. Se registraron menores niveles de 25(OH)D en el período posterior al ASPO en comparación con el período de ASPO (p < 0.00001), además de mayor frecuencia de hipovitaminosis D (48.6 % versus 36.1 %). No se observaron estas diferencias en la comparación de los mismos períodos de 2019. La UVDVC no varió entre 2019 y 2020. Conclusiones: Las restricciones por la pandemia de COVID-19 llevaron a mayor frecuencia de hipovitaminosis D y menor frecuencia de valores óptimos.
Abstract Background: Home confinement policies during the COVID-19 pandemic limited sun exposure and may have influenced on vitamin D levels. Objective: To assess changes in 25(OH)D during the COVID-19 pandemic and the impact of Mandatory Preventive Social Isolation (MPSI) on UV radiation recommended dose modified by clouds for the synthesis of vitamin D (UVDVC). Material and methods: A retrospective study was carried out on 15,908 patients in whom the level of 25(OH)D was determined between January 2019 and December 2021 in a centralized laboratory in Rosario, Argentina. Results: Lower levels of 25(OH)D were documented in people younger than 40 years during 2020, as well as a variation during the pandemic period, with lower values in the first wave. Lower levels of 25(OH)D were recorded in the post-MPSI period in comparison with the MPSI period (p < 0.00001), in addition to a higher frequency of hypovitaminosis D (48.6% vs. 36.1%). These differences were not observed in the comparison of the same periods of 2019. UVDVC did not vary between 2019 and 2020. Conclusions: The restrictions due to the COVID-19 pandemic led to a higher frequency of hypovitaminosis D and lower frequency of optimal values.
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India is a heliophobic country; despite ample sunshine, almost 490 million people are vitamin D deficient in the country. Additionally, the Indian diet has not been successful in providing the daily need for vitamin D, leading to a vitamin D deficiency. The need to fortifying food with vitamin D has been raised several times. Besides, there have been discussions about whether vitamin D is a hormone or a vitamin? In this review, the authors have reviewed vitamin D deficiency and its status in India, assessment and screening, the role of vitamin D in various disease conditions, dosage recommendation and regimen.
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India is a heliophobic country; despite ample sunshine, almost 490 million people are vitamin D deficient in the country. Additionally, the Indian diet has not been successful in providing the daily need for vitamin D, leading to a vitamin D deficiency. The need to fortifying food with vitamin D has been raised several times. Besides, there have been discussions about whether vitamin D is a hormone or a vitamin? In this review, the authors have reviewed vitamin D deficiency and its status in India, assessment and screening, the role of vitamin D in various disease conditions, dosage recommendation and regimen.
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Insuficiência renal crônica (IRC) é caracterizada pela deterioração irreversível dos néfrons, que causa uma condição crônica com prejuízo do desempenho físico dos indivíduos, principalmente de membros inferiores (MMII), devido a sarcopenia urêmica e déficit de vitamina D. Objetivo: Avaliar a eficiência de um programa de resistência muscular para MMII de pacientes com IRC. Métodos: Cinco pacientes com IRC participaram do programa de reabilitação que ocorreu 30 minutos antes do início da hemodiálise (HD), duas vezes por semana, cada sessão teve duração de 20 minutos, totalizando 14 sessões, sendo a primeira e última, destinadas a avaliação. A intervenção consistiu de circuito funcional e exercícios resistidos, isotônicos de cadeia cinética aberta e fechada. Foi avaliado o teste de sentar e levantar em 30 segundos e teste de uma repetição máxima (1RM). Resultados: Após a aplicação, foi verificado que a força muscular pós (2,92 ± 1,10) foi estatisticamente maior que a pré (1,90 ± 1,29, p= 0,02), além de evidenciar que as variáveis da progressão da carga e força muscular pós, estão diretamente correlacionadas (r² 0,976, p= 0,005). O desempenho no teste de sentar e levantar em 30 segundos obteve diferença significativa pré (6,8 ± 2,28) e pós intervenção (10,4 ± 1,67, p= 0,004). Conclusão: O programa de resistência muscular de MMII foi eficaz, visto que aumentou o desempenho físico funcional com ganho de força e resistência muscular em pacientes em HD
Chronic renal failure (CRF) is characterized by the irreversible deterioration of the nephrons, which causes a chronic condition with impaired physical performance of individuals, mainly of the lower limbs (LL), due to uremic sarcopenia and vitamin D deficit. Objective: To evaluate the efficiency of a muscular resistance program for the lower limbs of patients with CRF. Methods: Five patients with CRF participated in the rehabilitation program that took place thirty minutes before the beginning of hemodialysis (HD), twice a week, each session lasted 20 minutes, totaling 14 sessions, the first and last ones were destinated for evaluation. The intervention consisted of functional circuit and resistance exercises, isotonic with open and closed kinetic chain. The 30-second sit-and-stand test and the one maximum repetition test (1MR) were evaluated. Results: After application, it was found that post muscle strength (2.92 ± 1.10) was statistically higher than pre (1.90 ± 1.29, p= 0.02), in addition to showing that the variables of load progression and post muscle strength are directly correlated (r² 0.976, p= 0.005). The performance in the 30-second sit and stand test showed a significant difference pre (6.8 ± 2.28) and post intervention (10.4 ± 1.67, p= 0.004). Conclusion: The lower limbs muscular resistance program was effective, as it increased functional physical performance with gains in muscle strength and endurance in hemodialysis patients
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Objetivo: realizar dosagens de biomarcadores de função renal não convencionais em pacientes com anemia falciforme e associar com os níveis séricos de vitamina D. Métodos: trata-se de um estudo observacional, analítico de corte transversal. Participaram do estudo 51 pacientes adultos com anemia falciforme, e o grupo controle foi composto por 17 adultos saudáveis doadores de sangue. Os níveis séricos de 25- hidroxi-vitamina D foram determinados por imunoensaio quimioluminecente de micropartículas (CMIA), e a função renal foi avaliada pelas dosagens de molécula-1 de lesão renal (KIM-1) e proteína-1 quimiotática de monócitos (MCP-1). Os resultados foram expressos como mediana (intervalo interquartil). Os testes t-Student de amostras independentes, análise de variância de Welch e teste não paramétrico de Kruskal-Wallis foram realizados para comparar as diferenças entre os grupos. Resultados: os pacientes apresentaram níveis séricos de vitamina D superiores ao grupo controle, além de uma maior prevalência de suficiência de vitamina D. Os níveis urinários de KIM-1 e MCP-1 estavam aumentados nos pacientes em relação ao grupo controle. Não houve relação entre baixos níveis séricos de vitamina D e a probabilidade de desenvolvimento de doença renal. Conclusões: este estudo fornece dados importantes sobre a prevalência da deficiência de vitamina D em pacientes com anemia falciforme e demonstra não haver relação entre baixos níveis de vitamina D e desenvolvimento de doença renal.
Objective: to measure non-conventional renal function biomarkers in patients with sickle cell anemia and associate them with serum levels of vitamin D. Method: this is an observational, analytical, cross-sectional study. Fifty-one adult patients with sickle cell anemia participated in the study, and the control group consisted of 17 healthy adult blood donors. Serum levels of 25-hydroxyvitamin D were determined by chemiluminescent microparticle immunoassay (CMIA), and renal function was assessed by measuring urinary Kidney Injury Molecule-1 (KIM-1) and Monocyte Chemoattractant Protein-1 (MCP-1). Results were expressed as median (interquartile range). Student's t-test, Welch analysis of variance, and non-parametric Kruskal-Wallis test were performed to compare differences between groups. Results: patients had higher serum levels of vitamin D than the control group, besides a higher prevalence of vitamin D sufficiency. Urinary levels of KIM-1 and MCP-1 were increased in patients compared to the control group. There was no relationship between low serum vitamin D levels and the likelihood of developing kidney disease. Conclusions: this study provides important data on the prevalence of vitamin D deficiency in patients with sickle cell anemia and demonstrates that there is no relationship between low levels of vitamin D and the development of kidney disease.
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HumansABSTRACT
Objective@#To explore the association of vitamin D deficiency with anxiety and depressive symptoms as well as their comorbidity, so as to provide references for improving the mental health of children and adolescents.@*Methods@#From October to December 2021, a total of 1 323 students from four middle schools in Shenzhen were selected by using convenience sampling method for a questionnaire survey and physical examination. Fasting blood samples were collected to detect vitamin D levels. The Chi square test and multiple Logistic regression model were used to analyze the association of vitamin D deficiency with anxiety and depressive symptoms and their comorbidity among middle school students.@*Results@#The detection rates of anxiety, depressive, and thier comorbidities in middle school students were 33.0%, 21.5% and 16.3%, respectively. After adjusting for confounding factors, vitamin D deficiency was positively associated with the risk of anxiety symptoms ( OR=1.59, 95%CI =1.02-2.46), depressive symptoms ( OR=1.94, 95%CI =1.22-3.09) and anxiety depressive comorbid symptoms ( OR=1.75, 95%CI =1.06-2.90) in secondary school students ( P ＜0.05).@*Conclusion@#Vitamin D deficiency is associated with an increased risk of anxiety, depressive and their co morbidity symptoms in middle school students, and the directionality of the association should be further studied.
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Objective:To analyze and compare the association between different obesity-related indices and vitamin D deficiency in middle-aged and elderly population dwelled in Lanzhou city.Methods:From May, 2011 to September, 2012, middle-aged and elderly individuals with complete baseline data were included via randomly cluster sampling from 3 communities in Lanzhou. The subjects were divided into 4 subgroups by vitamin D levels and various obesity-related indices were compared across subgroups with the same gender. The relationship between the obesity-related indices and the severity of vitamin D deficiency was analyzed using Spearman correlation analysis, and the effects of different obesity-related indices on the severity of vitamin D deficiency was analyzed using multivariate logistic regression analysis.Results:A total of 9 437 residents were included. The overall prevalence of vitamin D deficiency was 97.7%. Compared with the group with lower vitamin D level, participants in the group with higher vitamin D level showed evidently lower body mass index (BMI), waist circumference (WC), lipid accumulation product (LAP), visceral adiposity index (VAI) and triglyceride/ high density lipoprotein cholesterol (TG/HDL-C) ratio in the total population and females, while only WC, LAP, VAI and TG/HDL-C in the males (all P<0.05). Spearman correlation analysis showed that BMI, WC, LAP, VAI and TG/HDL-C were positively correlated with the severity of vitamin D deficiency in the total population and the females, while only LAP, VAI and TG/HDL-C in the males (all P<0.05) . Multivariate logistic regression analysis showed that higher levels of these obesity related indices were correlated with more severe vitamin D deficiency in the total population and the females, while only higher LAP, VAI and TG/HDL-C in the males (all P<0.05). The effects of higher LAP was the most prominant in the total population ,the females and the males. Conclusion:Various obesity phenotypes are closely related to vitamin D deficiency in middle-aged and elderly women, while only visceral obesity and abnormal lipid metabolism are related to vitamin D deficiency in middle-aged and elderly men, with LAP being the most important influencing factor.
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A 36-year-old woman was admitted to the Peking Union Medical College Hospital with a history of fractures for 2 years, limb weakness for 1 year, and ostealgia for 2 months. The patient's examination identified iron deficiency anemia, significantly decreased serum calcium and 25-hydroxyvitamin D3 levels, and increased alkaline phosphatase and parathyroid hormone levels. Imaging showed several typical signs of osteomalacia. Considering the history of Roux-en-Y gastric bypass surgery, the diagnosis was considered to be osteomalacia caused by a postoperative nutritional absorption disorder. The patient was supplemented with calcitriol, calcium, and vitamin D and gradually returned to normal physical activity. The bone metabolism indicators and bone density were significantly improved.
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Objective: This study aimed to detect metabolic bone disease and endocrinopathies in a cohort of patients with transfusion-dependent thalassemia (TDT). Methods: This prospective study was conducted between March 2020 - August 2021. Children with TDT older than 5 years, receiving regular blood transfusion, underwent comprehensive endocrine and metabolic bone disease evaluation, which included screening for short stature, delayed puberty, diabetes mellitus, hypothyroidism, adrenal insufficiency and hypoparathyroidism. Children older than 10 years also underwent. X-ray of thoracolumbar spine, and dual energy X-ray absorptiometry (DXA) scanning. Results: Out of 37 patients (19 males), with mean (SD) age 15 (6) years, hypogonadism was the commonest endocrine deficiency seen in 15 (62%), followed by short stature, abnormal glucose metabolism, subclinical adrenal insufficiency, hypothyroidism, and hypoparathyroidism. Vitamin D insufficiency/deficiency was seen in 12 (60%) and hypocalcemia in 2 patients. Low bone mass was seen in 8, and osteoporosis, as evidenced by vertebral fractures, in 4 patients. Of the four patients with vertebral fracture, three were aged ?18 years, one was symptomatic, two each had grade 1 and grade 2 fractures, one had multiple vertebral fractures, and all four had hypogonadism and multiple endocrine deficiencies. Conclusion: Vertebral fractures occur even in the second decade among patients with TDT, and are often associated with endocrinopathies, most commonly hypogonadism. Early screening and prevention of vertebral fractures is necessary.
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ABSTRACT Purpose: To determine the effects of vitamin D deficiency on retinal microvascularity using optical coherence tomography angiography. Methods: This study was designed as an observational case-control study. Ninety-eight eyes of patients with vitamin D deficiency and 96 eyes of healthy participants with serum vitamin D level >30 ng/mL were studied. Macula centered, 6.00 × 6.00 mm scan size images were taken. The vessel densities in the superficial and deep retinal capillary plexus, foveal avascular zone area, and choriocapillaris flow area were measured. Results: The groups were comparable in terms of best-corrected visual acuity, sex, axial length, refractive error, age, and adjusted intraocular pressure. The average vitamin D level was significantly lower in the study group (p=0.021). The whole, parafoveal, and perifoveal vessel densities in the deep capillary plexus were considerably higher in the study group than in the control group (p=0.012, p=0.014, and p=0.023, respectively). The foveal avascular zone area and the choriocapillaris flow area were similar in both groups (p=0.37 and p=0.27, respectively) there was a strong negative correlation between the serum vitamin D level and vessel density in the whole image, parafoveal, and perifoveal regions of the deep capillary plexus in the study group (Spearman's rho=-0.71, p=0.043; Spearman's rho= -0.79, p=0.011; and Spearman's rho = -0.74, p=0.032; respectively). Conclusion: An increase in vessel density might originate from vascular structural changes caused by vitamin D deficiency. The increased vessel density, especially in the deep capillary plexus, can enable early diagnosis of vitamin D-associated vasculopathy.
RESUMO Objetivo: Determinar os efeitos da deficiência de vitamina D nos microvasos da retina usando angiotomografia de coerência óptica. Métodos: Este estudo foi planejado para ser do tipo caso-controle observacional. Foram avaliados 98 olhos de pacientes com deficiência de vitamina D e 96 olhos de participantes saudáveis com nível sérico de vitamina D superior a 30 ng/mL. Foram adquiridas imagens de varredura centralizadas na mácula, com um tamanho de 6,00 × 6,00 mm. Mediram-se a densidade dos vasos nos plexos capilares superficial e profundo da retina, a área da zona avascular foveal e a área do fluxo coriocapilar. Resultados: Os grupos mostraram-se semelhantes em relação à melhor acuidade visual corrigida, ao gênero, ao comprimento axial, ao erro refrativo, à idade e à pressão intraocular ajustada. O nível médio de vitamina D foi significativamente menor no grupo de estudo (p=0,021). As densidades total, parafoveal e perifoveal do plexo capilar profundo foram significativamente maiores no grupo de estudo que no grupo controle (respectivamente, p=0,012, p=0,014 e p=0,023). As áreas da zona avascular foveal e do fluxo coriocapilar foram semelhantes nos dois grupos (respectivamente, p=0,37 e p=0,27). Além disso, houve uma forte correlação negativa do nível sérico de vitamina D com as densidades vasculares medidas em toda a imagem e nas regiões parafoveais e perifoveais do plexo capilar profundo no grupo de estudo (respectivamente, ρ de Spearman = −0,71, p=0,043; ρ de Spearman = −0,79, p=0,011; e ρ de Spearman = −0,74, p=0,032). Conclusão: Pode ocorrer um aumento na densidade vascular da retina devido a alterações estruturais dos vasos causadas pela deficiência de vitamina D. O aumento da densidade vascular, especialmente no plexo capilar profundo, pode ser usado para o diagnóstico precoce da vasculopatia associada à deficiência de vitamina D.
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OBJETIVOS Determinar la prevalencia de déficit de vitamina D, así como evaluar la seguridad y efectividad de un nuevo método de carga con colecalciferol en pacientes adultos con fractura de tibia. MATERIALES Y MÉTODOS Se reclutaron a 56 pacientes consecutivos con edades entre 18 y 65 años con fractura de tibia ingresados en nuestro hospital durante 1 año. Se determinó el nivel de 25-hidroxivitamina D ([25(OH)-D]) al ingreso y tras suplementación con 100.000 UI semanales de colecalciferol, durante 3 o 5 semanas, en casos de insuficiencia ([25(OH)-D] entre 20 ng/mL y 29,9 ng/mL) o deficiencia ([25(OH)-D] < 20 ng/mL), respectivamente. Se determinó la prevalencia de hipovitaminosis D, el porcentaje de normalización de [25(OH)-D], y los efectos adversos. RESULTADOS Se evaluaron 56 pacientes; 98,2% presentó hipovitaminosis D, y 28 (73,7%) y 10 (26,3%) presentaron déficit e insuficiencia, respectivamente. Tras la suplementación, 92,1% alcanzaron niveles [25(OH)-D] normales. Ningún paciente presentó efectos adversos. DISCUSIÓN La prevalencia de deficiencia de vitamina D en nuestra población fue mayor a la reportada en la literatura. Comprobamos que un esquema de suplementación en altas dosis de vitamina D es seguro, y más efectivo que los previamente recomendados. Este esquema de suplementación puede ser implementado en futuros estudios randomizados. CONCLUSIÓN La prevalencia de hipovitaminosis D en pacientes adultos chilenos con fractura de tibia fue alta (98,2%). El esquema de suplementación con vitamina D propuesto fue efectivo y seguro.
OBJETIVOS Determinar la prevalencia de déficit de vitamina D, así como evaluar la seguridad y efectividad de un nuevo método de carga con colecalciferol en pacientes adultos con fractura de tibia. MATERIALES Y MÉTODOS Se reclutaron a 56 pacientes consecutivos con edades entre 18 y 65 años con fractura de tibia ingresados en nuestro hospital durante 1 año. Se determinó el nivel de 25-hidroxivitamina D ([25(OH)-D]) al ingreso y tras suplementación con 100.000 UI semanales de colecalciferol, durante 3 o 5 semanas, en casos de insuficiencia ([25(OH)-D] entre 20 ng/mL y 29,9 ng/mL) o deficiencia ([25(OH)-D] < 20 ng/mL), respectivamente. Se determinó la prevalencia de hipovitaminosis D, el porcentaje de normalización de [25(OH)-D], y los efectos adversos. RESULTADOS Se evaluaron 56 pacientes; 98,2% presentó hipovitaminosis D, y 28 (73,7%) y 10 (26,3%) presentaron déficit e insuficiencia, respectivamente. Tras la suplementación, 92,1% alcanzaron niveles [25(OH)-D] normales. Ningún paciente presentó efectos adversos. DISCUSIÓN La prevalencia de deficiencia de vitamina D en nuestra población fue mayor a la reportada en la literatura. Comprobamos que un esquema de suplementación en altas dosis de vitamina D es seguro, y más efectivo que los previamente recomendados. Este esquema de suplementación puede ser implementado en futuros estudios randomizados. CONCLUSIÓN La prevalencia de hipovitaminosis D en pacientes adultos chilenos con fractura de tibia fue alta (98,2%). El esquema de suplementación con vitamina D propuesto fue efectivo y seguro.
Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Tibial Fractures/drug therapy , Vitamin D Deficiency/epidemiology , Cholecalciferol/therapeutic use , Calcium-Regulating Hormones and Agents , Chile/epidemiology , Incidence , PrevalenceABSTRACT
RESUMEN Introducción: La literatura científica indica que hay relación entre la vitamina D (VitD) y el inicio, el tratamiento y el pronóstico de la depresión. Sin embargo, esta línea de investigación continúa siendo motivo de controversia. El propósito del trabajo es analizar la relación entre la depresión y los valores de VitD, controlando por la influencia de la estación. Material y métodos: Estudio observacional y transversal. La muestra quedó conformada por 150 voluntarias adultas (edad, 28-78 arios). Se estratificó la muestra en 3 grupos: depresión sin tratamiento, depresión en tratamiento con antidepresivos y sin depresión (control). Se compararon los valores de VitD. Resultados: Se hallaron diferencias significativas entre los 3 grupos de comparación. El grupo con depresión sin tratamiento obtuvo los valores de VitD más bajos (media, 18,62 ± 8,42 ng/ml), compatibles con una insuficiencia grave. El grupo de participantes con depresión en tratamiento obtuvo valores más altos que el grupo anterior, aunque en la franja de insufi ciencia (23,80 ± 11,30 ng/ml). El tercer grupo (control) obtuvo los valores más altos y acordes con el intervalo deseable (30,19 ± 10,21 ng/ml). No hubo diferencias de edad entre los grupos. Al controlar por posibles efectos de la estación del año, las diferencias previas de VitD entre los 3 grupos se mantuvieron, con un descenso ostensible de todas las medias en el periodo invernal. Conclusiones: La depresión se asocia con valores de VitD insuficientes. El tratamiento con antidepresivos mejora esos valores, aunque continúan siendo insuficientes. Los hallazgos de este estudio refuerzan la evidencia de una asociación entre la depresión y la VitD.
ABSTRACT Introduction: The scientific literature suggests a relationship between vitamin D (VitD) and the onset, treatment and prognosis of depression. However, this line of research continues to be controversial. The aim of the study was to analyse the relationship between depression and VitD values, controlling for the influence of the season. Material and methods: Observational and cross-sectional study. The sample was made up of 150 adult female volunteer participants (aged between 28 and 78 years). The sample was stratified into three groups: a) depression without treatment, b) depression under treat ment with antidepressants, and c) without depression (control). VitD values (ng/ml) were compared. Results: Significant differences were found between the three groups surveyed. The group of participants with depression without treatment obtained the lowest VitD values (mean 18.62 ng/ml; SD 8.42), compatible with severe insufficiency. The group of participants with depression in treatment obtained higher values than the previous group, although in an insufficient range (mean 23.80 ng/ml; SD 11.30). The third group (control) obtained the hig hest values and in accordance with the desirable range (mean 30.19 ng/ml; SD 10.21). There were no age differences between the groups. When controlling for possible effects of the season, the previous differences in VitD between the three groups were maintained, with an evident decrease of all the mean levels in the winter period. Conclusions: Depression is associated with insufficient VitD values. Treatment with antidepressants improves these values, although they continue to be insufficient. The findings of this study reinforce the evidence for an association between depression and VitD.
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Background & objectives: Vitamin D deficiency (VDD) is prevalent across all age groups in general population of India but studies among tribal populations are scanty. This study aimed to evaluate the prevalence of VDD in the indigenous tribal population of the Kashmir valley and examine associated risk factors. Methods: In this cross-sectional investigation, a total of 1732 apparently healthy tribal participants (n=786 males and n=946 females) were sampled from five districts of Kashmir valley by using probability proportional to size method. Serum 25-hydroxy vitamin D (25(OH)D) levels were classified as per the Endocrine Society (ES) recommendations: deficiency (<20 ng/ml), insufficiency (20-30 ng/ml) and sufficiency (>30 ng/ml). The serum 25(OH)D levels were assessed in relation to various demographic characteristics such as age, sex, education, smoking, sun exposure, body mass index and physical activity. Results: The mean age of the male participants was 43.79±18.47 yr with a mean body mass index (BMI) of 20.50±7.53 kg/m2, while the mean age of female participants was 35.47±14.92 yr with mean BMI of 22.24±4.73 kg/m2. As per the ES guidelines 1143 of 1732 (66%) subjects had VDD, 254 (14.71%) had insufficient and 334 (19.3%) had sufficient serum 25(OH)D levels. VDD was equally prevalent in male and female participants. Serum 25(OH)D levels correlated positively with serum calcium, phosphorous and negatively with serum alkaline phosphatase. Gender, sun exposure, altitude, physical activity and BMI did not seem to contribute significantly to VDD risk. Interpretation & conclusions: VD deficiency is highly prevalent among Kashmiri tribals, although the magnitude seems to be lower as compared to the general population. These preliminary data are likely to pave way for further studies analyzing the impact of vitamin D supplementation with analysis of functional outcomes
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RESUMEN Introducción: Actualmente se ha observado que la hipovitaminosis D y la obesidad pueden influir en el desarrollo de enfermedad cardiovascular en el futuro. Objetivo: Identificar la asociación entre deficiencia de vitamina D y factores de riesgo cardiometabólicos en los pacientes pediátricos del noroeste de México. Materiales y métodos : se incluyeron niños de 6 a 15 años, se les midieron variables somatométricas, niveles séricos de colesterol total, C-HDL, C-LDL, triglicéridos, glucosa, insulina, vitamina D e índice HOMA-IR. Se identificó la asociación de factores de riesgo cardiometabólicos y la deficiencia de vitamina D, mediante la prueba de Chi cuadrado. Resultados: De los 114 pacientes evaluados, se detectó eutrofia en 42.1%, sobrepeso en 12.3%, obesidad en 41.2% y desnutrición en 4.4%. La prevalencia de deficiencia en vitamina D, insuficiencia y suficiencia fueron 18.4%, 27.2% y 54.4% respectivamente. La deficiencia de vitamina D mostró mayor predominio en pacientes con obesidad (27 %). La hipertrigliceridemia se asoció estadísticamente con deficiencia de vitamina D (p 0.041). Se observaron correlaciones inversas entre niveles de vitamina D con HOMA (r=-0.191; p=0.41), score Z IMC (r=-0.210; p=0.025) e insulina (r=-0.227; p=0.015). Conclusiones: La deficiencia de vitamina D se asocia en niños con un IMC elevado y resistencia a la insulina, lo cual puede acelerar el desarrollo de síndrome metabólico, diabetes mellitus tipo 2 y enfermedad cardiovascular.
ABSTRACT Introduction: It has currently been observed that hypovitaminosis D and obesity can influence the future development of cardiovascular disease. Objective: To identify the association between vitamin D deficiency and cardiometabolic risk factors in pediatric patients from northwestern Mexico. Materials and methods: Children aged 6 to 15 years were included, somatometric variables, serum levels of total cholesterol, HDL-C, LDL-C, triglycerides, glucose, insulin, vitamin D and HOMA-IR index were measured. The association of cardiometabolic risk factors and vitamin D deficiency was identified using the Chi square test. Results: Of the 114 patients evaluated, normal body-mass index was detected in 42.1%, 12.3% were overweight, 41.2% were obese and 4.4% were malnourished. The prevalence of vitamin D deficiency, insufficiency and sufficiency were 18.4%, 27.2% and 54.4% respectively. Vitamin D deficiency was more prevalent in obese patients (27%). Hypertriglyceridemia was statistically associated with vitamin D deficiency (p = 0.041). Inverse correlations were observed between vitamin D levels with HOMA (r = -0.191; p = 0.41), BMI Z score (r = -0.210; p = 0.025) and insulin (r = -0.227; p = 0.015). Conclusions: Vitamin D deficiency is associated with a higher BMI and insulin resistance in children, which can accelerate the development of metabolic syndrome, type 2 diabetes mellitus and cardiovascular disease.
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Resumen Antecedentes: la deficiencia de vitamina D es un problema de salud pública asociado con diversas enfermedades en población adulta que podría estar relacionado con la actividad laboral. Objetivo: relacionar la deficiencia de vitamina D con el estado nutricional, la composición corporal y factores sociodemográficos en trabajadores de Quito, Ecuador. Materiales y métodos: estudio transversal en 245 trabajadores. Se evaluó vitamina D sérica por inmunofluorescencia, estado nutricional por Índice de Masa Corporal, composición corporal por bioimpedancia y otros factores sociodemo gráficos. Se usó regresión logística para identificar asociaciones entre deficiencia de vitamina D y variables de interés. Resultados: el 76 % de la población presentó deficiencia de vitamina D. El riesgo cardiovascular por circunferencia abdominal, edad y sexo estaban asociados con deficiencia de vitamina D. Por cada centímetro de incremento en la circunferencia abdominal, la prevalencia de deficiencia de vitamina D incrementaba 4,4 % (OR = 1,044 IC95 %:1,001-1,008; p = 0,043). Por cada año de edad de incremento, la prevalencia disminuía 4,1 % (OR = 0,96; IC95 %:0,93-0,99; p = 0,030). Las mujeres mostraron 2,33 veces más deficiencia de vitamina D en comparación con los hombres (OR = 2,33 IC95 %:1,28-6,94 p = 0,011). Conclusión: la deficiencia de vitamina D es alta en los traba jadores de la ciudad de Quito. Aparentemente, mujeres jóvenes con una circunferencia abdominal alta tienen mayor probabilidad de presentar esta deficiencia. El exceso de peso podría estar reduciendo la actividad física al aire libre, lo que disminuye a su vez la exposición a la luz solar y esto deriva en deficiencia de vitamina D.
Abstract: Background: Vitamin D Deficiency is a public health problem associated with various diseases in the adult population that could be related to work activity. Objective: To relate vitamin D deficiency with nutritional status, body composition, and sociodemographic factors in workers from Quito, Ecuador. Material and Methods: A cross-sectional study in 245 workers. Serum vitamin D was evaluated by immunofluorescence, nutritional status by Body Mass Index, body composition by bioimpedance, and other sociodemographic factors were also evaluated. The associations between vitamin D deficiency and variables of interest were examined by logistic regression. Results: Vitamin D deficiency was presented in 76% of the participants. Cardiovascular risk by abdominal circumference, age, and sex were associ ated with vitamin D deficiency. For each centimeter increase in abdominal circumference, the prevalence of vitamin D deficiency increased 4.4% (OR = 1.044 CI95%:1.001-1.008; p = 0.043). For each year of age increase, the prevalence decreased 4.1% (OR = 0.96; 95%CI:0.93-0.99; p = 0.030). Women showed 2.33 times more vitamin D deficiency than men (OR = 2.33 CI95%:1.28-6.94 p = 0.011). Conclusion: Vitamin D deficiency is high in workers in the city of Quito. Apparently, young female with a high abdominal circumference appear to be more likely to be this deficient. Excess weight likely influences outdoor physical activity, which in turn decreases exposure to sunlight and leads to vitamin D deficiency.
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Resumen Introducción: La tiroiditis linfocítica crónica o tiroiditis de Hashimoto es la causa más frecuente de hipotiroidismo adquirido en la edad pediátrica. Se ha detectado una asociación entre concentraciones bajas de 25-hidroxivitamina D (25OH vitamina D) y el desarrollo de la enfermedad. El objetivo de este trabajo fue describir las concentraciones de 25OH vitamina D en pacientes de 5 a 18 años con diagnóstico de tiroiditis linfocítica crónica en tres centros de consulta externa de endocrinología pediátrica enMedellín,Colombia. Métodos: Se llevó a cabo un estudio observacional de corte transversal con recolección retrospectiva de la información. Se evaluaron características sociodemográficas, particularidades del diagnóstico, presencia de comorbilidad y frecuencia de deficiencia de vitamina D. Resultados: Se incluyeron 60 pacientes. La concentración de 25OH vitamina D fue suficiente en el 65% de los casos según los criterios de Institute of Medicine (IOM) y en el 10% de los casos según los criterios de la Endocrine Society. Los valores de calcio y fósforo sérico fueron normales en el 53% y el 45% de los pacientes, respectivamente. Todos los pacientes presentaron concentraciones normales de magnesio y paratohormona. No se encontraron diferencias en el análisis exploratorio al comparar la concentración de 25OH vitamina D, de anticuerpos tiroideos y el volumen tiroideo. Conclusiones: En esta población con tiroiditis linfocítica crónica no se encontró una mayor prevalencia de deficiencia de 25OH vitamina D según los criterios del IOM y de la Endocrine Society en comparación con datos previos de la población general. En el análisis exploratorio no se encontraron diferencias estadísticamente significativas.
Abstract Background: Chronic lymphocytic thyroiditis or Hashimoto's thyroiditis is the most frequent cause of acquired hypothyroidism in children. An association between low levels of 25-hydroxyvitamin D (25OH vitamin D) and the development of the disease have been detected. The aim of this study was to describe 25OH vitamin D levels in patients aged 5 to 18 years with a diagnosis of Hashimoto's thyroiditis in three pediatric endocrinology outpatient centers in Medellín, Colombia. Methods: We conducted a cross-sectional observational study with retrospective data collection. We evaluated the sociodemographic characteristics, diagnoses, presence of comorbidities, and frequency of vitamin D deficiency. Results: Sixty patients were included. The 25OH vitamin D levels were sufficient in 65% of the cases according to the Institute of Medicine (IOM) criteria and in 10% of the cases according to the Endocrine Society criteria. Serum calcium and phosphorus values were normal in 53% and 45% of the patients, respectively. All patients had normal magnesium and parathyroid hormone levels. No differences were found in the exploratory analysis when comparing 25OH vitamin D levels, thyroid antibody levels, and thyroid volume. Conclusions: In this chronic lymphocytic thyroiditis population, we did not find an increased prevalence of vitamin D deficiency according to IOM or the Endocrine Society criteria compared with previous data from the general population. No statistically significant differences were found in the exploratory analysis.
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Background: To assess association of vitamin D deficiency with cardiac and pulmonary status in infants with acute bronchiolitis. Methods: Infants hospitalized with acute bronchiolitis were enrolled and classified as those with serum 25-hydroxyvitamin D (25-OHD) below or equal and above 20 ng/mL. The primary outcomes were cardiopulmonary involvement defined by elevation of NT-ProBNP, alteration of echocardiographic parameters and respiratory support requirements. The secondary outcomes were the need for PICU admission and duration of hospitalization. Results: 92 (50 males) infants with median (IQR) age of 1 (0.5-3) month were included with median (IQR) serum 25-OHD level 27.4 (11.4-40.3) ng/mL. 43 (47%) patients had serum 25-OHD level below 20 ng/mL with left ventricle dysfunction (P=0.008), right ventricle dysfunction (P=0.008) and pulmonary hypertension (P=0.007) on echocardiography more commonly than those with serum 25- OHD ?20 ng/mL. The median (IQR) serum NT-ProBNP levels were higher in those with low 25-OHD levels than normal 25-OHD levels [2232.2 (461.4-4313.3) and 830.4 (312.7- 2579.5)], respectively (P=0.003). Low 25-OHD levels were associated with increased risk for PICU admission (OR 3.9 (95% CI 1.5-10.1); P=0.004), higher rates of non-invasive ventilation (P=0.048) and mechanical ventilation (P=0.005) and longer duration of hospitalization (P=0.015). Conclusion: Low serum vitamin D level was associated with clinical severity and impaired cardiac and pulmonary status in infants with acute bronchiolitis
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Background: There is a high prevalence of vitamin D deficiency (VDD) in exclusively breast-fed infants in the absence of appropriate vitamin D supplementation. Objective: To evaluate the efficacy of two doses of maternal vitamin D supplementation on vitamin D levels of mother-infant pairs and to assess its effect on growth parameters (weight, length and head circumference) and bone mass of infants. Study design: Randomized controlled trial. Participants: Lactating mother-infant pairs (n=220). Intervention: Maternal oral vitamin D supplementation in two doses (group 1: 1,20,000 IU/month and group 2: 12,000 IU/month) for 12 months. Main outcomes: Maternal and infant serum 25OHD levels, and infants’ growth and bone mass. Results: There was high prevalence of VDD at baseline in mothers (94%) as well as infants (98.5%), which was reduced to 43.1% in (mothers) and 46.5% in infants after 12 months. Significantly higher median (IQR) serum 25OHD levels (ng/mL) were observed among mothers in group 1 compared to group 2 [46 (17-159) vs 18 (6-64); P<0.01] and in infants [36.5 (15-160) vs 17 (7-32); P<0.01]. No significant association was observed between growth parameters or bone mass and serum 25OHD levels of mother or infant between the two groups. Four mothers (3.6%) and two infants (1.8%) in group I had serum 25OHD>100 ng/mL, but without hypercalciuria or hypercalcemia. Conclusion: Bolus vitamin D supplementation in the dose of 1,20,000 IU/month was more efficacious in improving maternal and infant vitamin D status at 12 months, as compared to 12,000 IU/month.
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Abstract Objective To estimate the prevalence of inadequate vitamin D level and its associated factors for women of childbearing age in Brazil. Methods A systematic reviewwas conducted (last updatedMay 2020).Meta-analyses were performed using the inverse-variance for fixed models with summary proportion calculation by Freeman-Tukey double arcsine. Reporting and methodological quality were assessed using the Joanna Briggs Institute tool for prevalence studies. Results Our review identified 31 studies, comprising 4,006 participants. All the studies had at least one weakness, mainly due to the use of convenience sampling and small sample size. The overall prevalence of vitamin D deficiency, insufficiency, and both deficiency and insufficiency were 35% (confidence interval, 95%CI: 34-37%), 42% (95%CI: 41-44%), and 72% (95%CI: 71-74%), respectively. Conclusion Although the magnitude of the prevalence of inadequate levels of vitamin D is uncertain, the evidence suggests that presence of vitamin D deficiency or insufficiency in women of reproductive age can cause moderate to severe problems.
Resumo Objetivo Estimar a prevalência de níveis inadequados de vitamina D e seus fatores associados para mulheres em idade fértil no Brasil. Métodos Uma revisão sistemática foi realizada (última atualização em maio de 2020). As meta-análises foram realizadas usando o inverso da variância para o modelo fixo com cálculo de proporção sumarizada por transformação arco-seno duplo de Freeman-Tukey. A qualidade metodológica e de reporte foi avaliada usando a ferramenta do Joanna Briggs Institute para estudos de prevalência. Resultados Nossa revisão identificou 31 estudos, compreendendo 4.006 participantes. Todos os estudos apresentaram pelo menos uma limitação, principalmente devido ao uso de amostra de conveniência e tamanho amostral pequeno. As prevalências gerais de deficiência, insuficiência e deficiência de vitamina D foram 35% (intervalo de confiança, IC 95%: 34-37%), 42% (IC 95%: 41-44%) e 72% (IC 95%: 71-74%), respectivamente. Conclusão Embora a magnitude da prevalência de níveis inadequados de vitamina D seja incerta, a evidência sugere que presença de deficiência ou insuficiência de vitamina D em mulheres em idade reprodutiva pode causar problemas moderados a graves.