Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adult , Vitamin D/physiology , Vitamin D Deficiency/epidemiology , Vitamin D Deficiency/prevention & control , Vitamin D Deficiency/therapy , Calcification, Physiologic/physiology , Food, Fortified , Nutrition Surveys , Practice Guidelines as Topic , Mexico/epidemiologyABSTRACT
Tanto la equivalencia entre colecalciferol (D3) y ergocalciferol (D2), como las dosis y forma de administración de ambos, son actualmente un tema controvertido. El objetivo de este estudio fue comparar la efectividad de 800 UI/día de D2 (gotas) y D3 (comprimidos) para alcanzar niveles adecuados de 25 hidroxivitamina D (25OHD) (= 30 ng/ml). Veintiún mujeres posmenopáusicas que vivían en la Ciudad de Buenos Aires, edad promedio (
± DS) 77.1 ± 6.8 años fueron incluidas y asignadas en forma aleatoria a uno de los siguientes grupos: GD2 (n = 13): 800 UI (gotas) y GD3 (n = 8): 800 UI (comprimidos). Se midió 25OHD sérica (RIA-DIASORIN) basal y a los 7, 28 y 45 días del estudio. Basalmente, 19 de las 21 mujeres presentaron niveles de deficiencia de 25(OH)D (< 20 ng/ml): GD2: 14.0 ± 4.8 y GD3: 13.2 ± 4.9 (NS). Se observó en el día 7 un incremento del ~25% solo en GD3 y un aumento significativo al final del estudio en ambos grupos, sin alcanzar los valores adecuados de 25OHD (GD2: 17.4 ± 5.5 vs. GD3:22.9 ± 4.6 ng/ml p < 0.001). La administración por 45 días de 800 UI de vitamina D3 fue más efectiva que D2 para incrementar los niveles de 25OHD, aunque ambas fueron insuficientes para alcanzar niveles adecuados de 25OHD (= 30 ng/ml).
The equivalence of cholecalciferol (D3) and ergocalciferol (D2) as well as their corresponding doses and administration route remain controversial to date. The aim of this study was to compare the effectiveness of daily supplementation with 800 IU of D2 (drops) and D3 (pills) on 25-hydroxivitamin D (25OHD) levels (= 30 ng/ml). Twenty-one ambulatory postmenopausal women from Buenos Aires City with a mean ( ± SD) age of 77.1 ± 6.8 years were included. The participants were randomly assigned to one of the following groups: GD2 (n = 13): 800 IU (drops) and GD3 (n = 8): 800 IU (pills). Serum 25OHD levels were measured (RIA-DIASORIN) at baseline, and at 7, 28 and 45 days. Nineteen out of twenty one women showed deficient levels of 25OHD at baseline (< 20 ng/ml): GD2: 14.0 ± 4.8 ng/ml and GD3: 13.2 ± 4.9 ng/ml (NS). Whereas only GD3 exhibited an increase (~25%) at 7 days, both groups showed a significant increase at the end of the study. However, neither attained adequate 25OHD levels (GD2: 17.4 ± 5.5 vs. GD3:22.9 ± 4.6 ng/ml; p < 0.001). Administration of 800 IU of vitamin D3 during 45 days was more effective than D2 in increasing 25OHD, but both failed to achieve adequate levels of 25OHD (= 30 ng/ml). but neither succeeded in achieving adequate levels of 25OHD (= 30 ng/ml).
Subject(s)
Aged , Female , Humans , Cholecalciferol/administration & dosage , Dietary Supplements , Ergocalciferols/administration & dosage , Vitamin D Deficiency/therapy , Administration, Oral , Argentina , Calcium/blood , Sunlight , Treatment OutcomeABSTRACT
The objective of this study was to determine the vitamin D status of pregnant Omanis by measurement of their circulating 25 hydroxy vitamin D levels. Blood samples were obtained from a cohort of 103 consecutive healthy pregnant Omanis at the Armed Forces Hospital, Muscat, on their first antenatal visit. The study took place in May, June and July 2010. Vitamin D deficiency was present in 34 [33%] of patients [25OHD3 <25 nmol/L], 'at risk' levels were found in 67 [65%] patients [25OHD3 25-50 nmol/L]; two patients [1.9%] had values between 50 and 75 nmol/L, and no patients in the optimal range >75 nmol/L. If confirmed, these findings indicate the need for vitamin D replacement during pregnancy and lactation. Although not evidence based we recommend at least 1000 IU of cholecalciferol, [vitamin D3] daily
Subject(s)
Humans , Female , Pregnancy Complications/ethnology , Calcifediol , Nutrition Policy , Lactation , Vitamin D Deficiency/therapyABSTRACT
Vitamin D deficiency is epidemic in India despite of plenty of sunshine. The interpretation of vitamin D levels should be done with the solar zenith angle, minimal erythemal dose, skintype, UV Index and geographical location. All Indian studies uniformly point to low 25(OH)D levels in the populations studies despite abundant sunshine. All studies have uniformly documented low dietary calcium intake compared to Recommended Daily/Dietary Allowances (RDA) by Indian Council of Medical Research (ICMR). The vitamin D status of children is very low in both urban and rural population studied. Pregnant women and their new born had low vitamin D status. The effect of short course of loading doses of vitamin D doesn’t have a lasting effect and a maintenance dose is needed. Low 25(OH)D levels has its implications of lower peak bone mass and lower BMD compared to west. There may be a public health need to fortify Indian foods with vitamin D. ©