scholarly journals Vitamin D Supplementation Does Not Affect Metabolic Changes Seen With ART Initiation

2017 ◽  
Vol 4 (4) ◽  
Author(s):  
Josh Muhammad ◽  
Ellen S Chan ◽  
Todd T Brown ◽  
Pablo Tebas ◽  
Grace A McComsey ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Vitamin D ◽  
Lipid Profile ◽  
Density Lipoprotein ◽  
Vitamin D Supplementation ◽  
Lipoprotein Cholesterol ◽  
Controlled Study ◽  
Model Assessment ◽  
Art Initiation

Abstract Background Insulin resistance and lipid changes are common after antiretroviral therapy (ART) initiation. Observational studies suggest that vitamin D supplementation reduces the risk of developing diabetes and improves lipid profiles. Methods This 48-week prospective, randomized, double-blind, placebo-controlled study evaluated high-dose vitamin D3 (4000 IU daily) plus calcium supplementation (1000 mg calcium carbonate daily) in HIV-infected participants initiating ART with efavirenz/emtricitabine/tenofovir (EFV/FTC/TDF). Changes in insulin resistance (as estimated by homeostatic model assessment), fasting lipid profile, and components of the metabolic syndrome were assessed at baseline, 24 weeks, and 48 weeks. Stratified Wilcoxon rank sum tests and stratified normal score tests were used to evaluate differences between treatment arms, stratified by screening 25-OH vitamin D stratum (≤/>20 ng/mL). Results A total of 165 participants enrolled: 79 in the vitamin D/calcium (Vit D/Cal) arm and 86 in the placebo arm. Only the placebo arm experienced a modest increase in insulin resistance at week 24 (P < .001). While increases in total and high-density lipoprotein cholesterol were significant in both arms at weeks 24 and 48, increases in low-density lipoprotein cholesterol at week 24 were only identified in the placebo arm (P = .011). Body mass index remained stable, whereas modest increases in waist circumference were observed in the placebo arm. Metabolic syndrome was present in 19 participants (12%) at baseline and 20 participants (14%) at week 48, without differences between arms. Conclusions Vit D/Cal supplementation over 48 weeks did not alter the lipid profile or glucose metabolism experienced with initiation of EFV/FTC/TDF in ART-naïve persons. Vitamin D supplementation is unlikely to be an effective strategy to attenuate metabolic dysregulations with ART initiation.

Investigation of ischemia modified albumin and coenzyme Q10 levels in obese children with metabolic syndrome

2016 ◽  
Vol 41 (6) ◽  
Author(s):  
Sabahattin Muhtaroğlu ◽  
Selda Özkan Koçak ◽  
İhsan Çetin ◽  
Didem Barlak Keti ◽  
Mustafa Kendirci
Keyword(s):  
Metabolic Syndrome ◽  
Lipid Profile ◽  
Low Density Lipoprotein ◽  
Colorimetric Method ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Healthy Children ◽  
Model Assessment ◽  
Obese Children ◽  
Ischemia Modified Albumin

AbstractIntroduction:The aim of this study was to analyze serum ischemia modified albumin (IMA) and plasma CoQ10 levels and to evaluate their correlation with insulin resistance (homeostatic model assessment, HOMA) and lipid profile in obese children with and without metabolic syndrome (MS).Methods:Thirty-one obese with MS, 30 obese without MS and 34 healthy children aged 6–18 years were included in the study. Serum IMA was measured by colorimetric method, plasma CoQ10 levels were measured by HPLC. Serum glucose, total cholesterol, triglyceride, high density lipoprotein cholesterol, low density lipoprotein cholesterol and insulin were analyzed.Results:IMA levels were found to be significantly higher (p<0.001) while the CoQ10 levels were significantly lower (p<0.001) in obese children with and without MS compared to controls. IMA and CoQ10 significantly correlated with each other and metabolic parameters. Furthermore, IMA and CoQ10 levels did not significantly differ between obese children with and without MS, while glucose, insulin levels and HOMA were significantly higher (p<0.001) in obese children with MS than obese without MS and controls.Conclusions:Based on the high levels of IMA, low CoQ10 and association with HOMA and lipid profile; we suggest that obese children may have oxidative damage, lipid peroxidation and cardiometabolic risk.

scholarly journals Sexual Dimorphism for the Association between Vitamin D and Insulin Resistance in Chinese People

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Bing Han ◽  
Qin Li ◽  
Ningjian Wang ◽  
Yi Chen ◽  
Chunfang Zhu ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Vitamin D ◽  
Fasting Blood Glucose ◽  
Density Lipoprotein ◽  
Serum Levels ◽  
Vitamin D Supplementation ◽  
Model Assessment ◽  
Inverse Association ◽  
Vitamin D Levels ◽  
Males And Females

Background. The relationship between vitamin D and insulin resistance is still controversial. Many factors could influence this relationship. In addition, this relationship in different genders was still unclear. Methods. A total of 6597 subjects, including 2813 males and 3784 females, were analyzed. The serum levels of 25(OH)D, fasting blood glucose (FBG), fasting insulin, HbA1c, and other metabolic parameters were tested. The waist circumference (WC), weight, and height were also measured. Questionnaires regarding smoking and drinking were collected from these subjects. Results. Serum 25(OH)D was categorized into quartiles. Increasing 25(OH)D levels were associated with reduced trend of homeostasis model assessment of insulin resistance (HOMA-IR) in both males and females. Pearson’s correlation indicated 25(OH)D level was inversely associated with the HOMA-IR for male subjects (r=−0.055, P=0.028) but not for female subjects (r=−0.005, P=0.798). Age, triglyceride (TG), and low-density lipoprotein (LDL) were associated with the vitamin D levels in males and females. In regression analysis, serum 25(OH)D concentration was significantly associated with HOMA-IR only in overweight males. Conclusion. We found an inverse association between 25(OH)D and HOMA-IR in Chinese overweight males. Vitamin D supplementation might be beneficial in this population. However, further clinical trials are needed to confirm this association.

Vitamin D Supplementation in Adults with Vitamin D Deficiency and Its Effect on Metabolic Syndrome – A Randomized Controlled Study

2016 ◽  
Vol 86 (3-4) ◽  
pp. 121-126 ◽  
Author(s):  
Saba Fathima Mahmood ◽  
Jyothi Idiculla ◽  
Rajnish Joshi ◽  
Shailesh Joshi ◽  
Shruthi Kulkarni
Keyword(s):  
Metabolic Syndrome ◽  
Vitamin D ◽  
Placebo Group ◽  
Large Population ◽  
Serum Vitamin ◽  
Hypovitaminosis D ◽  
Vitamin D Supplementation ◽  
Controlled Study ◽  
Model Assessment ◽  
Serum Vitamin D

Background: Inverse relationship between metabolic syndrome (MetS) and 25-hydroxyvitamin D (25(OH) D) levels is controversial. Hypovitaminosis-D has long been suspected as a risk factor for glucose intolerance. Aim: A randomized double blind placebo controlled study to evaluate effects of vitamin D supplementation on insulin resistance in subjects with hypovitaminosis-D and MetS. Materials and Methods: Subjects were randomized to receive either oral 25(OH) D3 supplement (60000 (IU) per week for 8 weeks followed by 60,000 IU monthly for 4 months) or a placebo for six months. The parameters measured were blood pressure, vitamin D, fasting blood sugar (FBS), insulin, homeostasis model assessment (HOMA), quantitative insulin sensitivity check index (QUICKI), body mass index (BMI), and waist circumference (WC). Results: There were no significant changes in parameters of vitamin-D group compared to placebo group except serum vitamin-D was significantly increased in vitamin-D group (p < 0.0001). In vitamin-D group, mean WC at baseline was 95.9 ± 6.66, which significantly changed to 94.6 ± 7.47 (p = 0.001). Mean BMI at baseline was 29.1 ± 4.06 which significantly changed to 28.5 ± 4.16 (p = 0.001). The mean vitamin-D concentration at baseline was 15.4 ± 9.03 which significantly (p < .0001) increased to 26.1 ± 11.8. In placebo group mean insulin levels was 10.7 ± 4.81IU / L which increased significantly (p = 0.03) to 15.4 ± 14.0. Mean QUICKI at baseline was 0.34 ± 0.03 which decreased significantly (p = 0.02) to 0.32 ± 0.03. Conclusion: In this study the relationship between vitamin D supplementation and MetS or IR was not established. Whether achieving vitamin D sufficiency in large population-based trials with a longer duration would produce more favorable results needs to be assessed.

scholarly journals Circulating Omentin-1, Insulin Resistance and Lipid Profile Responses Following an Eight-week Aerobic Training Intervention Among Male Smokers 

2020 ◽  
Author(s):  
Seyed Maysam Mousavi ◽  
Ali Heidarianpour ◽  
Hassan Tavassoli
Keyword(s):  
Insulin Resistance ◽  
Exercise Training ◽  
Aerobic Exercise ◽  
Lipid Profile ◽  
Density Lipoprotein ◽  
Normal Weight ◽  
Aerobic Exercise Training ◽  
Lipoprotein Cholesterol ◽  
Control Group ◽  
Model Assessment

Abstract Background: Omentin-1 is a recently discovered circulating adipokine that plays a crucial role in modulating insulin resistance and diabetes. We investigated the effect of eight weeks of aerobic exercise training on serum omentin-1, insulin resistance and lipid profile in the smokers and non-smokers with normal weight. Methods: Nineteen male healthy and twenty male smokers were randomly assigned into healthy control group (C), healthy exercise group (E), control smoker group (CS) and exercise smoker group (ES). Exercise groups participated in an eight-week aerobic exercise training program (three times a week, 20-35 min per session at 55%-70% of maximum heart rate). Serum omentin-1 and insulin values were determined by ELISA and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR), glucose and lipid profile was measured before and after the intervention. Paired samples t-test, one-way analysis of variance (One-way ANOVA) and post-hoc Tukey test were applied to analyze the data (p<0.05).Results: Aerobic exercise improved both serum omentin-1 and high lipoprotein cholesterol (HDL-C) in the exercise groups (p<0.05). Also, Exercise training reduced insulin, blood sugar, HOMA-IR, total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels (p<0.05). Omentin-1 was significantly correlated with insulin (r=-0.40, P=0.01), HOMA-IR (r=-0.38, P=0.04), TG (r=-0.40, P=0.01), TC (r=-0.49, P=0.02), LDL-C (r=-0.70, P=0.02) and HDL-C (r=0.55, P=0.03).Conclusion: The findings suggest that aerobic exercise-induced changes in omentin-1 in exercise trained smokers may be associated with the beneficial effects of exercise on reduced insulin resistance and lipid profile.

scholarly journals Aerobic Exercise Training Effects on Omentin-1, Insulin Resistance and Lipid Profile Among Male Smokers

2020 ◽  
Author(s):  
Seyed Maysam Mousavi ◽  
Ali Heidarianpour ◽  
Hassan Tavassoli
Keyword(s):  
Insulin Resistance ◽  
Exercise Training ◽  
Aerobic Exercise ◽  
Lipid Profile ◽  
Density Lipoprotein ◽  
Normal Weight ◽  
Aerobic Exercise Training ◽  
Lipoprotein Cholesterol ◽  
Control Group ◽  
Model Assessment

Abstract Background: Omentin-1 is a recently discovered circulating adipokine that plays a crucial role in modulating insulin resistance and diabetes. We investigated the effect of eight weeks of aerobic exercise training on serum omentin-1, insulin resistance and lipid profile in the smokers and non-smokers with normal weight. Methods: Nineteen male healthy and twenty male smokers were randomly assigned into healthy control group (C), healthy exercise group (E), control smoker group (CS) and exercise smoker group (ES). Exercise groups participated in an eight-week aerobic exercise training program (three times a week, 20-35 min per session at 55%-70% of maximum heart rate). Serum omentin-1 and insulin values were determined by ELISA and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR), glucose and lipid profile was measured before and after the intervention. Paired samples t-test, one-way analysis of variance (One-way ANOVA) and post-hoc Tukey test were applied to analyze the data (p<0.05).Results: Aerobic exercise improved both serum omentin-1 and high lipoprotein cholesterol (HDL-C) in the exercise groups (p<0.05). Also, Exercise training reduced insulin, blood sugar, HOMA-IR, total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels (p<0.05). Omentin-1 was significantly correlated with insulin (r=-0.40, P=0.01), HOMA-IR (r=-0.38, P=0.04), TG (r=-0.40, P=0.01), TC (r=-0.49, P=0.02), LDL-C (r=-0.70, P=0.02) and HDL-C (r=0.55, P=0.03).Conclusion: The findings suggest that aerobic exercise-induced changes in omentin-1 in exercise trained smokers may be associated with the beneficial effects of exercise on reduced insulin resistance and lipid profile.

scholarly journals Vitamin D Deficient Older Adults Are More Prone to Have Metabolic Syndrome, but Not to a Greater Number of Metabolic Syndrome Parameters

Nutrients ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 748
Author(s):  
Henrique Pott-Junior ◽  
Carla Manuela Crispim Nascimento ◽  
Letícia Pimenta Costa-Guarisco ◽  
Grace Angelica de Oliveira Gomes ◽  
Karina Gramani-Say ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Older Adults ◽  
Metabolic Syndrome ◽  
Vitamin D ◽  
Waist Circumference ◽  
Influencing Factor ◽  
Density Lipoprotein ◽  
Hypovitaminosis D ◽  
Metabolic Parameters ◽  
Lipoprotein Cholesterol

This study investigated the relationship between metabolic parameters and low serum 25-hydroxyvitamin D (25(OH)D) levels in older adults (n = 265). They were assessed for anthropometrics and metabolic measurements, including 25(OH)D, insulin, glucose, total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides (TG) and other inflammatory markers. Vitamin D deficiency was defined as a 25(OH)D level below 50 nmol/L. Comparisons between groups were performed using Wilcoxon–Mann–Whitney or Pearson’s Chi-squared test. A multivariate adjusted Poisson regression was used to model the number of metabolic parameters as a function of a set of explanatory variables. Subjects with 25(OH)D deficiency were predominantly females and presented higher body weight, body mass index, waist circumference, triglycerides and Tumor Necrosis Factor-α (TNF-α), and higher insulin resistance. Metabolic syndrome was also more prevalent among 25(OH)D-deficient subjects. In those without metabolic syndrome, 25(OH)D deficiency was related only to obesity and higher insulin resistance. Female sex, hypertension, higher waist circumference and higher levels of hemoglobin A1C (%), HDL-C, and TG were significantly associated with an increased number of metabolic syndrome parameters after adjusting for covariates, but 25(OH)D was not. The fact that serum 25(OH)D concentration was inversely associated with metabolic syndrome and insulin resistance not only reaffirms the relevance to consider serum 25(OH)D concentration as an influencing factor for insulin resistance, but also the need to actively screen for hypovitaminosis D in all patients with this condition.

scholarly journals The Effects of Vitamin D Supplementation on Metabolic and Oxidative Stress Markers in Patients With Type 2 Diabetes: A 6-Month Follow Up Randomized Controlled Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Milena Cojic ◽  
Radivoj Kocic ◽  
Aleksandra Klisic ◽  
Gordana Kocic
Keyword(s):  
Oxidative Stress ◽  
Insulin Resistance ◽  
Type 2 Diabetes ◽  
Vitamin D ◽  
Vitamin D Supplementation ◽  
Controlled Study ◽  
Model Assessment ◽  
Endocrine Society

Vitamin D deficiency could play an important role in the pathogenesis of type 2 diabetes mellitus (T2DM) as it may alter several crucial processes in the development of diabetes and its complications, such as pancreatic insulin secretion, peripheral insulin resistance, persistence of systemic „sterile” inflammation and immune activation. Vitamin D may also have an antioxidant effect through the inhibition of free radicals generation. The reported study was designed with eligible consecutively recruited patients with T2DM on standard metformin therapy (n=130), randomized in 1:1 ratio, considered to have undergone Vitamin D supplementation according to the guidelines proposed by the Endocrine Society, or to have continued with metformin only. The potential benefit was monitored through the influence on glycemia level, glycated haemoglobin (HbA1c), insulin resistance index (calculated as homeostatic model assessment; HOMA-IR), Castelli Risk Index I and Tryglicerides/Thiobarbituric acid-reactive substances (TG/TBARS) Index in a 6-month follow up period. Our study indicates that oral daily doses of vitamin D improve HbA1c levels over the 3-month and 6-month period, followed by a significant decrease in advanced oxidation protein products levels over the 3-month period when higher vitamin D doses are given. The effect of vitamin D on HOMA-IR index, malondialdehyde levels and TG/TBARS index was not statistically significant. Further investigation should consider defining the doses of vitamin D in patients with T2DM which may attenuate the oxidative stress risk, the risk of metabolic syndrome and the risk of related cardiovascular events.

NUTRIOSE dietary fiber supplementation improves insulin resistance and determinants of metabolic syndrome in overweight men: a double-blind, randomized, placebo-controlled study

2010 ◽  
Vol 35 (6) ◽  
pp. 773-782 ◽  
Author(s):  
Shuguang Li ◽  
Laetitia Guerin-Deremaux ◽  
Marine Pochat ◽  
Daniel Wils ◽  
Cheryl Reifer ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Test Group ◽  
Lipoprotein Cholesterol ◽  
Controlled Study ◽  
Low Density ◽  
Low Density Lipoprotein Cholesterol ◽  
Double Blind

The influence of dietary fiber on determinants of metabolic syndrome is controversial. The objective of this study was to determine the effects of NUTRIOSE supplementation on insulin resistance and the determinants of metabolic syndrome in overweight men. In this double-blind, randomized, placebo-controlled study, we supplemented the diets of overweight Chinese men with 250 mL of fruit juice that contained NUTRIOSE (Test group: n = 60, age = 30.4 ± 4.3 years, body mass index (BMI) = 24.5 ± 0.2 kg·m–2) or a maltodextrin placebo (Control group: n = 60, age = 31.6 ± 4.1 years, BMI = 24.5 ± 0.3 kg·m–2) at a dosage of 17 g twice daily for 12 weeks. Daily caloric intake, body composition, blood chemistry, and blood pressure were evaluated every 4 weeks during the trial. Test subjects consumed fewer calories per day and had greater reductions in body weight, BMI, body fat percentage, and waist circumference than Control subjects. All markers of glucose metabolism improved in the Test group, with increases in adiponectin and reductions in glucose, insulin, homeostasis model assessment-estimated insulin resistance, glycosylated hemoglobin, and glycated albumin (all p < 0.01). Similarly, all lipid measures improved with increases in high-density lipoprotein cholesterol and reductions in total cholesterol, low-density lipoprotein cholesterol, very low-density lipoprotein cholesterol, and triglycerides (all p < 0.01). No changes were observed in systolic blood pressure between groups. Most components of glucose metabolism and the lipid profile were significantly better in the Test than in the Control subjects. No adverse events or gastrointestinal complaints were reported in either group. Supplementation with NUTRIOSE for 12 weeks is well tolerated, lowers insulin resistance, and improves determinants of metabolic syndrome in overweight men.

scholarly journals Influences of Recreational Tennis-Playing Exercise Time on Cardiometabolic Health Parameters in Healthy Elderly: The ExAMIN AGE Study

2021 ◽  
Vol 18 (3) ◽  
pp. 1255
Author(s):  
Hsiao-Han Chao ◽  
Yi-Hung Liao ◽  
Chun-Chung Chou
Keyword(s):  
Insulin Resistance ◽  
Arterial Stiffness ◽  
Ankle Brachial Index ◽  
Density Lipoprotein ◽  
Activity Level ◽  
Lipoprotein Cholesterol ◽  
Cardiometabolic Health ◽  
Model Assessment ◽  
Healthy Elderly ◽  
Metabolic Biomarkers

Background: Aging and chronic degeneration are the primary threats to cardiometabolic health in elderly populations. Regular appropriate exercise would benefit the advanced aging population. Purpose: This study investigates whether the degree of weekly tennis participation exhibits differences in primary cardiometabolic parameters, including arterial stiffness, inflammation, and metabolic biomarkers in elderly tennis players. Methods: One hundred thirty-five long-term participants in elder tennis (>50 years old) were initially screened. Twenty-six eligible and voluntary subjects were divided into high tennis time group (HT) (14 ± 1.3 h/week) and low tennis time group (LT) (4.5 ± 0.7 h/week) by stratification analysis based on the amount of tennis playing activity time. The brachial-ankle pulse wave velocity (baPWV), blood pressure, ankle-brachial index (ABI), blood metabolic biomarkers, and insulin resistance were measured to compare the difference between HT and LT groups. Results: The baPWV was significantly lower in the HT group than that in the LT group (1283.92 ± 37.01 vs. 1403.69 ± 53.71 cm/s, p < 0.05). We also found that the HT insulin-resistant homeostasis model assessment (HOMA-IR) was significantly lower than that of LT (1.41 ± 0.11 vs. 2.27 ± 0.48 μIU/mL, p < 0.05). However, the blood lipid biomarkers (glucose, cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride) were not statistical different between HT and LT groups (p > 0.05). Conclusion: We demonstrated that under the condition of similar daily physical activity level, elderly with a higher time of tennis-playing (HT group) exhibited relatively lower arterial stiffness (lower PWV) and lower insulin resistance compared to those with lower time tennis-playing (LT).

scholarly journals The Correlation between Vitamin D and Clinical Implications for Obesity-Related Type 2 Diabetes Mellitus

2020 ◽  
Vol 14 (1) ◽  
pp. 39-45
Author(s):  
Noor Thair Tahir ◽  
Hind SH. Ahmed ◽  
Rasha K. Hashim ◽  
Teba D. Soluiman
Keyword(s):  
Insulin Resistance ◽  
Type 2 Diabetes ◽  
Vitamin D ◽  
Density Lipoprotein ◽  
Obese Group ◽  
Lipoprotein Cholesterol ◽  
Diabetic Patients ◽  
Clinical Implications ◽  
Vitamin D Levels

Background: Obesity and type 2 diabetes have both rapidly raised during the last periods and are ongoing to increase at a disturbing rate universal. Several clinical and epidemiological researches demonstrated a reverse association between circulating vitamin D levels, central adiposity and the progress of insulin resistance and diabetes. Objective: The target of this work was to elucidate the complex role of vitamin D and the clinical implications of diabetes on metabolic defects related with obesity. Subjects and Methods: This study encompassed 90 diabetic patients (45 obese and 45 non obese) who were attending the National Diabetic Center/ Al-Mustansiriyah University during the period from June 2019 to January 2020; their age range was (35-60) years. All participant underwent clinical and biochemical examinations. Results: A substantial rise (p= 0.01) in waist/hip ratio, body mass index, fasting serum glucose, total cholesterol, triacylglycerol, and low density lipoprotein cholesterol in obese diabetic patients as paralleled to non-obese group. Moreover, there was an elevation in glycated hemoglobin, serum insulin, and homeostasis model assessment for insulin resistance in obese group, but it was not significant. A substantial decrease (p= 0.01) in serum high density lipoprotein cholesterol and vitamin D3 were detected in obese diabetic patients as paralleled to non-obese group.       Also, obese diabetic patients had the higher percent (61%) of D3 deficiency as paralleled to non-obese patients. Conclusions: In the present study, it is found that there is significant increase in blood sugar in the individuals with decreased vitamin D levels, which was related with insulin resistance, decreased β-cell function, and obesity.  

Sign in / Sign up

Export Citation Format

Share Document