scholarly journals Effect of vitamin D supplementation in combination with weight loss diet on lipid profile and sirtuin 1 in obese subjects with vitamin D deficiency: a double blind randomized clinical trial

2019 ◽  
Vol 9 (4) ◽  
pp. 263-269
Author(s):  
Soodabeh Aliashrafi ◽  
Seyed Rafie- Arefhosseini ◽  
Lida Lotfi-Dizaji ◽  
Mehrangiz Ebrahimi-Mameghani
Keyword(s):  
Vitamin D ◽  
Placebo Group ◽  
Lipid Profile ◽  
Vitamin D Deficiency ◽  
Density Lipoprotein ◽  
Vitamin D Supplementation ◽  
Mean Difference ◽  
Sirtuin 1 ◽  
Obese Subjects ◽  
Mean Differences

Background: Due to inconsistent evidence regarding the potential role of vitamin D on lipid profile and sirtuin 1 (SIRT-1), this study was designed to investigate the effect of vitamin D supplementation in combination with weight loss diet on lipid profile and SIRT-1 in obese subjects with vitamin D deficiency. Methods: Forty-four obese subjects with vitamin D deficiency were randomly assigned in a randomized clinical trial to receive either a weight reduction diet supplemented with 50000IU vitamin D3 pearl (n = 22) or placebo (n = 22) once weekly for 12 weeks. Changes in total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), triglyceride (TG) and low high density lipoprotein cholesterol (HDL-C) and SIRT-1 were the primary outcomes. Secondary outcomes were changes in body mass index (BMI), 25(OH) D and parathyroid hormone (PTH). Physical activity and dietary intakes were also assessed. Results: During the intervention, PTH (mean difference, -33.36; 95% CI: -49.15 to -17.57;P<0.001) and LDL-C (mean difference, -15.91; 95% CI: -21.76 to -10.07; P<0.001) decreased and 25(OH) D (mean difference, 36.44; 95% CI: 29.05 to 43.83; P<0.001) increased significantly in the vitamin D group. BMI (mean differences: -2.40; 95% CI: [-2.92 to-1.88] in vitamin D group and mean differences: -1.90; 95% CI [-6.58 to -3.01] in placebo group, P<0.05 for both groups), TC (mean difference,-21.31; 95% CI: -27.24 to -15.38; P<0.001 in vitamin D group and mean difference, -12.54; 95% CI: -19.02 to -6.06; P<0.001 in placebo group) and TG (mean difference,-21.31; 95% CI: -27.24 to -15.38; P<0.001in vitamin D group and mean difference, -12.54; 95% CI: -19.02 to -6.06; P<0.001 in placebo group) decreased and SIRT-1(mean difference, 3.95; 95% CI: 1.18 to 6.73; P=0.007in vitamin D group and mean difference,1.91; 95% CI: 0.31 to 3.63 in placebo group, P=0.022) increase significantly in both group. At end of the study, 25(OH) D and PTH showed significant differences in between-group analyses(P<0.05). No significant difference was detected for HDL-C in within and between groups. Conclusion: This study gives no support for any beneficial effect of vitamin D supplementation on lipid profile and SIRT-1 in obese subjects with vitamin D deficiency.

Effect of high-dose vitamin D supplementation in combination with weight loss diet on glucose homeostasis, insulin resistance, and matrix metalloproteinases in obese subjects with vitamin D deficiency: a double-blind, placebo-controlled, randomized clinical trial

2020 ◽  
Vol 45 (10) ◽  
pp. 1092-1098
Author(s):  
Soodabeh Aliashrafi ◽  
Mehrangiz Ebrahimi-Mameghani ◽  
Mohammad Asghari Jafarabadi ◽  
Lida Lotfi-Dizaji ◽  
Elnaz Vaghef-Mehrabany ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Vitamin D ◽  
Weight Loss ◽  
Matrix Metalloproteinases ◽  
Vitamin D Deficiency ◽  
Glucose Homeostasis ◽  
Vitamin D Supplementation ◽  
High Dose ◽  
Model Assessment ◽  
Obese Subjects

As there is limited and inconsistent evidence in potential role of vitamin D on insulin resistance and matrix metalloproteinases, this study aimed to examine the effect of vitamin D supplementation on glucose homeostasis, insulin resistance, and matrix metalloproteinases in obese subjects with vitamin D deficiency. A total of 44 participants with serum 25-hydroxyvitamin D (25(OH)D) level ≤ 50 nmol/L and body mass index (BMI) 30–40 kg/m2 were randomly allocated into receiving weight reduction diet with either 50 000 IU vitamin D3 pearl (n = 22) or placebo (n = 22) once weekly for 12 weeks. Primary outcomes were changes in fasting serum glucose (FSG), homeostasis model assessment of insulin resistance (HOMA-IR), quantitative insulin sensitivity check index (QUICKI), and matrix metalloproteinases (MMPs). Secondary outcomes were changes in weight, BMI, 25(OH)D, calcium, phosphorous and parathyroid hormone (PTH). Sun exposure and dietary intakes were also assessed. Serum levels of 25(OH)D3 increased significantly with a simultaneous decrease in serum concentration of PTH in the vitamin D group. Weight, BMI, FSG, and MMP-9 decreased significantly in both groups, and there were significant differences in changes in weight, serum 25(OH)D3, PTH, and MMP-9 levels between the groups. Within- and between-groups analysis revealed no significant differences in serum calcium, phosphorous, serum insulin, HOMA-IR, QUICKI, and MMP-2 after intervention. Our results indicated that improvement in vitamin D status resulted in greater reductions in weight and MMP-9 during weight loss. These preliminary results are sufficient to warrant a bigger study group.

scholarly journals Are Indian obese children and adolescents at increased risk for Vitamin D deficiency?

2021 ◽  
Vol 0 ◽  
pp. 1-5
Author(s):  
Aashima Dabas ◽  
T. Aravind ◽  
Sangeeta Yadav ◽  
Mukta Mantan ◽  
Smita Kaushik
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Vitamin D Supplementation ◽  
Obese Children ◽  
Indian Children ◽  
Hydroxyvitamin D ◽  
Increased Risk ◽  
High Risk Factor ◽  
25 Hydroxyvitamin D ◽  
Obese Subjects

Objectives: Obesity has been mentioned as a high risk factor for Vitamin D deficiency (VDD) requiring supplementation in Indian children. Material and Methods: Forty obese and age-matched non-obese subjects (age 5–18 years) were assessed for lifestyle parameters, metabolic profile, and serum 25-hydroxyvitamin D (25OHD). VDD was defined as serum 25OHD < 12 ng/mL. Results: Mean 25OHD was comparable among obese and controls (15.0 ± 9.95 and 15.1 ± 4.79 ng/mL; P = 0.97) with VDD seen in 82% of cases and 85% of controls. Pubertal cases had lower 25OHD values than prepubertal obese cases (10.78 ± 4.69 and 17.2 ± 11 ng/mL; P = 0.06). Mean duration of physical activity (<2 h/week) and screen time (>2 h/day) was similar across prepubertal and pubertal groups and between obese and controls. Obesity was not associated with risk for VDD among cases and controls (odds ratio 0.83, 95% C.I. 0.25–2.7, P = 0.76). Conclusion: Obese pubertal subjects were more at risk for VDD than prepubertal subjects. Routine Vitamin D supplementation to obese Indian children may be considered during adolescence.

scholarly journals Prevalence of Cardio-metabolic Risk Factors among Young Saudi Women with Vitamin D Deficiency

2020 ◽  
pp. 46-55
Author(s):  
H. A. Al Kadi ◽  
E. Alissa
Keyword(s):  
Risk Factors ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Vitamin D Supplementation ◽  
Metabolic Risk Factors ◽  
Metabolic Risk Factor ◽  
Metabolic Risk ◽  
Saudi Women

Aims: The aim of this study was to determine the prevalence of cardio-metabolic risk factors in apparently healthy Saudi women with vitamin D deficiency. Study Design: A retrospective chart review. Place and Duration of Study: This study was conducted in the Center of Excellence for Osteoporosis Research (CEOR), King Abdulaziz University, Jeddah, Saudi Arabia, between June 2015 to October 2015. Methodology: Healthy women 20–40 years old, with no history of previous illnesses and not on any medications were included in this study. Data on anthropometric measurements as well as blood pressure (BP) were obtained. Body mass index (BMI) was calculated. Laboratory results including fasting blood glucose (FBG), fasting lipid profile, 25-hydroxyvitamin D3 (25(OH)D3) and parathyroid hormone (PTH) were also obtained. Vitamin D deficiency was defined as 25(OH)D3 concentration <50 nmol/l. Modified NCEP:ATPIII criteria were used to define cardio-metabolic risk factor cutoff points. Results: A total of 305 women were included in the current analysis. Mean (± S.D.) age of the study group was 28.4±6.1 years and median (IQR) 25(OH)D3 was 17.8 (11.9–28.2) nmol/l. Almost 97% of the study participants were vitamin D deficient and 70% had values below 25 nmol/l. 25(OH)D3 was significantly inversely associated with waist circumference, systolic and diastolic BP and PTH (P=0.011, <0.0001, <0.0001, <0.0001, respectively). Prevalence of cardio-metabolic risk factors were higher among participants who fell in the lowest tertile of 25(OH)D3 except total cholesterol and low density lipoprotein cholesterol, however only higher PTH was statistically significant (P=0.022). Conclusion: The results of the present study confirm the high prevalence of vitamin D deficiency among otherwise healthy Saudi women. The results also suggest that the prevalence of selected cardio-metabolic risk factors is higher among those with low vitamin D status. Prospective studies are needed to determine whether such deficiency will be of clinical significance with advancing age in this population, and whether vitamin D supplementation has beneficial effects.

scholarly journals Dyslipidemia and Vitamin D Status in Diabetic Patients

2022 ◽  
Vol 05 (01) ◽  
Author(s):  
Mohammed Sassi ◽  
Keyword(s):  
Vitamin D ◽  
Lipid Profile ◽  
Vitamin D Deficiency ◽  
Elevated Serum ◽  
Female Gender ◽  
Serum Levels ◽  
Vitamin D Supplementation ◽  
Diabetic Patients ◽  
Vitamin D Status ◽  
Cross Sectional

Background: Dyslipidemia is one of the most common metabolic syndrome among diabetic patients due to several factors include insulin insufficiency, resistance, and central obesity. Furthermore both vitamin D deficiency and diabetes are most public health worldwide problems. Therefore the aim of the present work to study the dyslipidemia and vitamin D status in diabetes patients and also to study the relation between vitamin D status and lipid profile in diabetic patients. Methods: A Cross sectional study conducted on randomly selected diabetic patients whether have vitamin D deficiency with dyslipidemia, vitamin D deficiency with no dyslipidemia or dyslipidemia with no vitamin D deficiency. A total sample 165 patients enrolled in the study with serum lipid profile, vitamin D and glycemic control measured at beginning and end of the study. The data analysis was done through Chi-square or T test at α< 0.05. Result: The data collected on 165 patients revealed that, patients aged 41-60 years were most common, and female gender was twice as male. This study include both types of diabetes with vitamin D deficiency and dyslipidemia or vitamin D deficiency with no dyslipidemia or dyslipidemia with not vitamin D deficiency as control. Therefore, the result of this work confirmed that vitamin D deficiency significant implicated in elevated serum levels of TG, TC, LDL, VLDL, FPG and HbA1C (P< 0.05). However, vitamin D deficiency has linked to slight increased serum HDL levels. In compared to man, vitamin D deficiency linked significantly to dyslipidemia and abnormal high levels blood glucose and HbA1C par in women. Conclusion: The present study revealed that, vitamin D deficiency associated negatively with serum levels of TC, TG, VLDL, LDL, FPG and HbA1C whereas the deficiency of vitamin D linked to elevated HDL levels. In gender distribution lower vitamin D values associated with elevated serum FPG, HbA1C, lipid profile with exception HDL in women. The data of this study suggested that, diabetic patients with dyslipidemia may improve their lipid profile and glucose hemostasis through vitamin D supplementation

scholarly journals Effects of Moderate Sun Exposure and Vitamin D Supplementation on Serum 25-Hydroxyvitamin D Concentration Among Malay Women

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 1304-1304
Author(s):  
Norliyana Aris ◽  
Hamid Jan Bin Jan Mohamed ◽  
Wan Mohd Izani Bin Wan Mohamed
Keyword(s):  
Vitamin D ◽  
Placebo Group ◽  
Vitamin D Deficiency ◽  
Sun Exposure ◽  
Vitamin D Supplementation ◽  
Dietary Vitamin ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D ◽  
Hands And Feet ◽  
Vitamin D Supplement

Abstract Objectives Known as ‘sunshine vitamin’, sun exposure is a major and natural source of vitamin D. This study aimed to investigate the effects of moderate sun exposure and vitamin D supplementation on vitamin D concentration among Malay women in Kelantan, Malaysia. Methods A quasi-experimental study design was carried out among female indoor workers with vitamin D deficiency (serum 25-hydroxyvitamin D &lt; 50 nmol/l) for 12 weeks to evaluate the effects of moderate sun exposure (n = 19; 15 minutes sun exposure biweekly on face, lower arms, hands and feet), vitamin D supplementation (n = 15; 50 000 IU cholecalciferol weekly) and placebo (n = 15) on serum 25-hydroxyvitamin D (25(OH)D) levels. Data was collected twice from each respondent, firstly during baseline and secondly during endpoint. Body composition measurements (body fat percentage and body mass index), fasting blood test (serum 25(OH)D level) and questionnaire (socio-demographic, physical activity and dietary vitamin D intake) were conducted. The vitamin D classification was based on the 2011 Endocrine Society Clinical Practice Guidelines. Repeated measure ANOVA within group analysis was applied. Results The baseline characteristics did not differ significantly among study groups except for age (F = 6.15, p = 0.004). After 12 weeks, serum 25(OH)D levels increased significantly in sun exposure (mean difference (MD) = 14.27 nmol/l, p &lt; 0.001) and vitamin D supplement group (MD = 14.30 nmol/l, p &lt; 0.001) but not in the placebo group (MD = 1.63 nmol/l, p = 0.067). Conclusions The 12-weeks intervention with moderate sun exposure and vitamin D supplementation showed a similar significant increment in serum 25(OH)D levels. However, no changes in serum 25(OH)D was observed in the placebo group. These results showed that sunlight exposure and vitamin D supplement were equally helpful in improving serum 25(OH)D levels in participants with vitamin D deficiency. Funding Sources Short Term Research Grant, Universiti Sains Malaysia.

scholarly journals Effect of Vitamin D Supplementation on Insulin, Fasting Blood Glucose, and Waist-Hip Ratio in Young Females with Pre-existing Vitamin D Deficiency

2019 ◽  
Vol 11 (1) ◽  
pp. 42-7
Author(s):  
Mona Hmoud AlSheikh ◽  
Shayma Ibrahim Almubayadh
Keyword(s):  
Vitamin D ◽  
Placebo Group ◽  
Blood Glucose ◽  
Vitamin D Deficiency ◽  
Fasting Blood Glucose ◽  
Insulin Level ◽  
Vitamin D Supplementation ◽  
Small Sample ◽  
Young Females ◽  
Waist Hip Ratio

BACKGROUND: Vitamin D is an essential nutrient requirement for adults and children for normal metabolism and maintenance of healthy bones. Its deficiency may disrupt homeostasis and contribute to systemic diseases, especially in obese patients. This study aimed to examine the effect of vitamin D on insulin, fasting blood glucose (FBG) and waist-hip ratio (WHR) in young and obese Saudi females with pre-existing hypovitaminosis D.METHODS: The results of this study were based on prospective parallel randomised controlled clinical trial conducted at King Fahd University Hospital in which 30 obese Saudi young females aging 18-23 years with preexisting vitamin D deficiency contributed. Participants were randomly assigned to either vitamin D supplementation group (experimental) or placebo group (control). Subjects of vitamin D group received 50,000 IU/week of cholecalciferol drops and placebo group received 10 mL of normal saline drops for 12 weeks.RESULTS: The results of multivariate repeated measures analysis showed a change in serum 25-Hydroxycholecalciferol levels after vitamin D supplementation (F=296.132, p<0.05). There was also an indication of difference between the vitamin D group and placebo group. The only significant relationship was found between vitamin D and FBG (p<0.05). Supplementation of vitamin D improved FBG but did not contribute to improving insulin level. There was no association between vitamin D supplementation and WHR.CONCLUSION: This study concludes that supplementation of vitamin D improves FBG, but it has no contribution in improving insulin level. No association exists between vitamin D supplementation and WHR. The insignificant correlation of vitamin D intake with WHR and insulin can be attributed to the small sample size, therefore, further research is suggested with large sample size.KEYWORDS: vitamin D, fasting blood glucose, body mass index, waist hip ratio, hypovitaminosis D

The Role of Vitamin D Supplementation in the Treatment of Primary Hypertension: A Double-Blinded Randomized Placebo-Controlled Clinical Trial

2020 ◽  
Vol 22 (7) ◽  
Author(s):  
Samira Faraji ◽  
Rasoul Zarrin ◽  
Asma Zamanian ◽  
Reza Hajizadeh ◽  
Parvin Ayremlou ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Clinical Trial ◽  
Vitamin D ◽  
Lipid Profile ◽  
Vitamin D Deficiency ◽  
Intervention Group ◽  
Vitamin D Supplementation ◽  
Controlled Clinical Trial ◽  
Hypertensive Patients ◽  
Double Blinded

Background: Hypertension is one of the most serious global concerns since it has affected over 1.2 billion people. Objectives: The present study aimed to determine the effect of vitamin D supplementation on blood pressure, fasting blood sugar, and lipid profile in hypertensive patients with vitamin D deficiency. Methods: In this double-blinded randomized placebo-controlled clinical trial study, 116 hypertensive patients (intervention and placebo groups, 58 each) with vitamin D deficiency (< 30 ng/mL with ECL) for 14 weeks, started from the beginning of autumn 2019 in Seyed-al-Shohada Educational Hospital in Urmia City. Fifty-five patients (49%) were male with the mean vitamin D 15.89 ± 5.09 ng/mL and 57 females with 17.29 ± 6.31 ng/mL. In a stratified blocked randomization scheme, the patients were randomly allocated into similar sized intervention and control groups based on body mass index (BMI), then the randomization with four block size was performed in each of strata by random allocation software. The intervention group received six doses of 50,000 IU vitamin D supplements for 6 weeks, then two supplements for two following months (one capsule per month). Blood pressure (24/h blood pressure measured by an ambulatory blood pressure monitoring device), vitamin D, FBS, and lipid profile (HDL, LDL, CL, and TG) were all measured at baseline and end of the study. Physical activity (measured by short IPAQ questionnaire), sun exposure using a questionnaire, dietary intake of vitamin D using three 24-hour recalls during the intervention, and anthropometric indices were measured at baseline, middle, and end of the study. Fifty-six patients in each group completed the study. The study was approved by the Ethics Committee of the Urmia University of Medical Sciences (ethics code: IR.UMSU.REC.1398.192). Results: The office blood pressure, 24-h systolic blood pressure (SBP) and diastolic blood pressure (DBP), nighttime SBP and DBP were significantly reduced in the intervention group compared to the control group, whereas the reduction of daytime SBP and DBP was not statistically significant. Vitamin D supplementation significantly decreased serum triglyceride, cholesterol, and LDL levels. Conclusions: Vitamin D supplementation had positive effects on blood pressure, triglyceride, cholesterol, and LDL levels in patients with low serum vitamin D.

scholarly journals Effects of Vitamin D Supplementation on Omentin-1 and Spexin Levels, Inflammatory Parameters, Lipid Profile, and Anthropometric Indices in Obese and Overweight Adults with Vitamin D Deficiency under Low-Calorie Diet: A Randomized Placebo Controlled Trial

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Elhameh Cheshmazar ◽  
Agha Fatemeh Hosseini ◽  
Bahareh Yazdani ◽  
Elham Razmpoosh ◽  
Mitra Zarrati
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Density Lipoprotein ◽  
Vitamin D Supplementation ◽  
Lipid Profiles ◽  
Lipoprotein Cholesterol ◽  
Low Calorie ◽  
Low Calorie Diet ◽  
Calorie Diet ◽  
Hs Crp

Background and Aims. Improved vitamin D levels can have a favorable effect on some metabolic variables. The objective of the current study was to determine the effects of vitamin D supplementation during a weight-loss intervention on the levels of omentin-1, spexin, lipid profiles, and inflammatory factors in obese and overweight participants. Methods and Materials. In this double-blind placebo-controlled randomized clinical trial, 70 overweight and obese participants with vitamin D deficiency (25(OH)D ≤ 20 nmol/L) were assigned into the intervention (a daily dose of 2,000 IU vitamin D + low-calorie diet) and placebo (placebo + low-calorie diet) groups for 8 weeks. Anthropometric parameters, serum levels of 25-hydroxy vitamin D (25(OH)D), lipid profiles, omentin-1 and spexin levels, high-sensitivity C-reactive protein (hs-CRP), and soluble intercellular adhesion molecule-1 (sICAM-1) concentrations were assessed before and after the intervention. Results. Vitamin D supplementation after the intervention led to a significant decrease in triglycerides (TG) ( P = 0.02 ), very-low-density lipoprotein-cholesterol (VLDL-C) ( P = 0.02 ), and hs-CRP ( P = 0.03 ) concentrations and a significant increase in the serum vitamin D level ( P < 0.001 ). Furthermore, after adjusting for baseline values, age, and baseline BMI, the levels of serum high-density lipoprotein-cholesterol (HDL-C) ( P = 0.01 ) increased significantly, and a significant reduction was observed in the concentration of sICAM-1 ( P = 0.01 ) in the intervention group. However, we did not find any significant difference in serum omentin-1 and spexin concentrations between the groups after intervention. Conclusions. Vitamin D supplementation along with a low-calorie diet (LCD) program for 8 weeks significantly decreased the inflammatory markers in obese individuals, while it did not alter serum omentin-1 and spexin concentrations.

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