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1.
Comparison of metabolic and obesity biomarkers between adolescent and adult women with polycystic ovary syndrome.
de Medeiros, SF, de Medeiros, MAS, Barbosa, BB, Yamamoto, MMW, Maciel, GAR
Archives of gynecology and obstetrics. 2021;(3):739-749
Abstract
PURPOSE Knowledge of adolescent and adult phenotypes of women with polycystic ovary syndrome (PCOS) might drive opportune management. The aim of this study was to compare metabolic and obesity biomarkers between adolescent and adult women with PCOS. METHODS This observational study compared biomarkers of obesity and metabolism derangements between adolescent (n = 62) and adult (n = 248) women with PCOS. Predictors of metabolic syndrome (MS) were investigated using univariate and multivariate binary logistic regression analysis. RESULTS The postmenarcheal age of adolescents was 4.9 ± 0.03 years. Systolic blood pressure was lower in adolescents than in adults (112.3 mmHg vs 117.0 mmHg, p = 0.001) Diastolic blood pressure was also lower in adolescents (70.7 mmHg vs 75.8 mmHg, p < 0.001). Glucose intolerance (12.0% vs 19.3%) and insulin resistance (18.2% vs 17.7%) were similar in both groups (p > 0.05, for comparisons). Impaired fasting glucose was lower in adolescents (1.8% vs 11.6%, p = 0.015). Total cholesterol and low-density lipoprotein cholesterol were lower in adolescents (p < 0.001). MS in adolescents and adults were found in 10.3% and 27.8%, respectively (p = 0.005). Visceral adiposity index (VAI) was a good predictor of MS in both adolescents (OR = 12.2), and adults (OR = 9.7). CONCLUSIONS Most biomarkers of glucose metabolism abnormalities were similar in adolescents and adults with PCOS. The prevalence of MS was lower in adolescents. VAI was a strong predictor of metabolic syndrome, both in adolescent and adult women with PCOS.
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2.
Body Weight Reduction of 5% Improved Blood Pressure and Lipid Profiles in Obese Men and Blood Glucose in Obese Women: A Four-Year Follow-up Observational Study.
Hasegawa, Y, Nakagami, T, Oya, J, Takahashi, K, Isago, C, Kurita, M, Tanaka, Y, Ito, A, Kasahara, T, Uchigata, Y
Metabolic syndrome and related disorders. 2019;(5):250-258
Abstract
Background: Body weight reduction (BWR) of at least 3% in obese Japanese individuals through lifestyle interventions has improved the risk factors for cardiovascular disease (CVD). We aimed to assess the relation between body weight change (BWC) and CVD risk change and to identify lifestyle improvement related to BWR in obese Japanese individuals. Methods: Subjects were 2579 health checkup examinees without medicated diabetes, hypertension or dyslipidemia, and a body mass index ≥25 kg/m2 who completed lifestyle questionnaires in 2008 and 2012. The 4-year changes in fasting plasma glucose (FPG), glycated hemoglobin (HbA1c), lipids, and blood pressure (BP) levels were compared across the five groups based on the 4-year BWC, and presented as <-5%, -5% to -3%, -3% to -1%, -1% to 1%, and ≥1%. Multivariable logistic regression models were used to calculate odds ratios (ORs) and 95% confidence intervals (CI) for lifestyle improvement related to BWR. Results: Comparing the groups to the reference group (BWC ranging from -1% to +1%), we observed that FPG and HbA1c levels were lower in women in the <-5% group; BP levels were also lower in the <-5% group; triglyceride levels had improved in the <-3% group, and low-density lipoprotein cholesterol levels in the <-5% group; high-density lipoprotein cholesterol levels had improved in men in the <-5% group. In men, the adjusted OR (95% CI) for BWR related to lifestyle improvement pertaining to "over 30 min exercise" was 2.6 (2.0-3.6). In women, the adjusted ORs for BWR related to "walking or physical activity," "drinking alcohol," and "drinking more than a glass of sake" were 1.7 (1.1-2.7), 1.9 (1.1-3.5), and 1.8 (1.1-3.0), respectively. Conclusions: A 5% BWR improved FPG and HbA1c levels in obese women, and BP and lipid levels in obese men. Improvements in exercise and alcohol consumption habits were associated with BWR in this population.
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3.
Effect of Breaks in Prolonged Sitting or Low-Volume High-Intensity Interval Exercise on Markers of Metabolic Syndrome in Adults With Excess Body Fat: A Crossover Trial.
Freire, YA, Macêdo, GAD, Browne, RAV, Farias-Junior, LF, Bezerra, ÁDL, Fayh, APT, Farias Júnior, JC, Boreskie, KF, Duhamel, TA, Costa, EC
Journal of physical activity & health. 2019;(9):727-735
Abstract
BACKGROUND This study analyzed the effect of walking breaks or low-volume high-intensity interval exercise (LV-HIIE) on markers of metabolic syndrome relative to a day of prolonged sitting. METHODS Twenty-five adults with excess body fat participated in this crossover trial: (1) 10-hour sitting day (SIT), (2) LV-HIIE followed by a sitting day (EX+SIT), and (3) sitting day with 5-minute walking breaks for every 20 minutes (SIT+WB). Glucose and blood pressure (BP) were measured before and 1 hour after 4 meals and 2 hours after lunch. Triglycerides were measured at baseline, 2, and 3.5 hours after lunch. Generalized mixed models were used to identify differences in the area under the curve (AUC) of BP and incremental AUC (iAUC) of glucose and triglycerides among the sessions. RESULTS iAUC-glucose was lower in SIT+WB than SIT (β = -35.3 mg/dL·10 h; 95% confidence interval, -52.5 to -8.2). AUC-diastolic BP was lower in SIT+WB than SIT (β = -14.1 mm Hg·10 h; 95% confidence interval, -26.5 to -1.6) and EX+SIT (β = -14.5 mm Hg·10 h; 95% confidence interval, -26.9 to -2.1). There were no differences in triglycerides and systolic BP levels among the sessions. CONCLUSION Adults with excess body fat present lower glucose and diastolic BP during a day with breaks in sitting time compared with a prolonged sitting day with or without an LV-HIIE session.
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4.
Comparison of the effects of flaxseed oil and sunflower seed oil consumption on serum glucose, lipid profile, blood pressure, and lipid peroxidation in patients with metabolic syndrome.
Akrami, A, Nikaein, F, Babajafari, S, Faghih, S, Yarmohammadi, H
Journal of clinical lipidology. 2018;(1):70-77
Abstract
BACKGROUND Metabolic syndrome (MetSyn) increases the risk of type II diabetes and morbidity and mortality due to cardiovascular diseases. Flaxseed oil (FO), as a functional food, is one of the major vegetal sources of essential omega-3 fatty acids. OBJECTIVE This study aimed to compare the effects of consumption of FO and sunflower seed oil (SO) on lipid peroxidation and other symptoms of MetSyn. METHODS This randomized controlled interventional trial was conducted on 60 volunteers aged 30 to 60 years who were diagnosed with MetSyn in Shiraz, Iran. The participants who fulfilled the inclusion criteria were randomly assigned to SO (n = 30, receiving 25 mL/d SO) and FO (n = 30, receiving 25 ml/d FO) groups using block randomization. The diets were identical for all the participants. Blood pressure (BP), serum lipid, fasting blood sugar, and malondialdehyde were measured at baseline and at the end of week 7. RESULT The results showed no significant difference between the 2 groups regarding blood lipid levels and fasting blood sugar at the end of the study. However, significant reductions in total cholesterol, low-density lipoprotein cholesterol (5.6% in FO and 10.8% in SO), and triglyceride levels were seen within each group after treatment with FO and SO (P < .05). Nonetheless, between-group changes were significant (<0.05) for systolic BP (mean [±standard deviation {SD}] changes were -14.0 ± 22.41 in the FO group [P = .004] and 0.92 ± 8.70 in the SO group [P = .594]) and diastolic BP (mean [±SD] changes were -4.26 ± 7.44 in the FO group [P = .007] and 1.30 ± 6.91 in the SO group [P = .344]), but marginally significant (P = .053) for malondialdehyde level (mean [±SD] changes were -1.29 ± 1.48 in the FO group [P < .001] and -0.52 ± 1.34 in the SO group [P = .52]). A significant decrease in weight was also found in both groups. However, waist circumference decreased significantly only in the FO group at the end of the study (P < .05). CONCLUSION Our results indicated that dietary FO could be effective in amelioration of some symptoms of MetSyn and decrease BP and lipid peroxidation.
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5.
One month of omega-3 fatty acid supplementation improves lipid profiles, glucose levels and blood pressure in overweight schoolchildren with metabolic syndrome.
García-López, S, Villanueva Arriaga, RE, Nájera Medina, O, Rodríguez López, CP, Figueroa-Valverde, L, Cervera, EG, Muñozcano Skidmore, O, Rosas-Nexticapa, M
Journal of pediatric endocrinology & metabolism : JPEM. 2016;(10):1143-1150
Abstract
BACKGROUND This study sought to investigate the effects of omega (ω)-3 polyunsaturated fatty acid (PUFA) supplementation on the lipid profiles and glucose (GLU) levels of overweight (OW) schoolchildren with metabolic syndrome (MS). METHODS Thirty-nine OW schoolchildren with MS, including 19 girls and 20 boys, received 1-month of dietary supplementation with gel capsules containing ω-3 fatty acids. Fasting lipid profiles and GLU levels were measured before and after supplementation. RESULTS Both sexes of OW schoolchildren with MS who received daily supplementation with 2.4 g of ω-3 fatty acids for 1 month displayed improved lipid profiles, reduced fasting GLU levels and reduced blood pressure (BP). CONCLUSIONS These findings support the addition of omega-3 fatty acid supplementation to programs aiming to improve the metabolic status of OW children with MS, although additional research on the longer-term safety and efficacy of this treatment in this population is required.
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6.
The difference between oats and beta-glucan extract intake in the management of HbA1c, fasting glucose and insulin sensitivity: a meta-analysis of randomized controlled trials.
He, LX, Zhao, J, Huang, YS, Li, Y
Food & function. 2016;(3):1413-28
Abstract
Increasing oats and beta-glucan extract intake has been associated with improved glycemic control, which is associated with the reduction in the development of diabetes. This study aims to assess the different effects between oat (whole and bran) and beta-glucan extract intake on glycemic control and insulin sensitivity. PubMed, Embase, Medline, The Cochrane Library, CINAHL and Web of Science were searched up to February 2014. We included randomized controlled trials with interventions that lasted at least four weeks that compared oats and beta-glucan (extracted from oats or other sources) intake with a control. A total of 1351 articles were screened for eligibility, and relevant data were extracted from 18 studies (n = 1024). Oat product dose ranged from 20 g d(-1) to 136 g d(-1), and beta-glucan extract dose ranged from 3 g d(-1) to 10 g d(-1). Compared with the control, oat intake resulted in a greater decrease in fasting glucose and insulin of subjects (P < 0.05), but beta-glucan extract intake did not. Furthermore, oat intake resulted in a greater decrease in glycosylated hemoglobin (HbA1c) (P < 0.001, I(2) = 0%) and fasting glucose (P < 0.001, I(2) = 68%) after removing one study using a concentrate and a different design and fasting insulin of type 2 diabetes (T2D) (P < 0.001, I(2) = 0%). The intake of oats and beta-glucan extracted from oats were effective in decreasing fasting glucose (P = 0.007, I(2) = 91%) and fasting insulin of T2D (P < 0.001, I(2) = 0%) and tented to lower HbA1c (P = 0.09, I(2) = 92%). Higher consumption of whole oats and oat bran, but not oat or barley beta-glucan extracts, are associated with lower HbA1c, fasting glucose and fasting insulin of T2D, hyperlipidaemic and overweight subjects, especially people with T2D, which supports the need for clinical trials to evaluate the potential role of oats in approaching to the management of glycemic control and insulin sensitivity of diabetes or metabolic syndrome subjects.
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7.
Body Weight Reduction Results in Favorable Changes in Blood Pressure, Serum Lipids, and Blood Sugar in Middle-Aged Japanese Persons: A 5-Year Interval Observational Study of 26,824 Cases.
Mandai, N, Akazawa, K, Hara, N, Ide, Y, Ide, K, Dazai, U, Chishaki, A, Chishaki, H
Global journal of health science. 2015;(5):159-70
Abstract
OBJECTIVE We investigated the relationships between body weight (BWt) and metabolic syndrome (MS) risk factors to elucidate the effect of BWt (?BWt) change and body mass index (BMI) on these factors in the Japanese population. METHODS Data were collected on MS-related parameters measured during two annual examinations of 16,640 men (mean age: 41.7±11.6 years) and 10,184 women (mean age: 45.0±12.2 years) without prior treatment of hypertension, diabetes mellitus, or dyslipidemia in 2006 and 2011 in Fukuoka, Japan. The subjects were divided into three groups according to BMI in 2006 (low, middle and high BMI) and into three groups according to change in BMI between 2006 and 2011 (decreased, stable, and increased BMI). Mean values for blood pressure (BP), systolic BP (SBP), diastolic BP (DBP), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides (TG), hemoglobin A1c (HbA1c), and fasting blood glucose (FBG) for each group were determined by sex and subjected to statistical analysis for comparison. RESULTS High BMI (>26) was associated with higher SBP, LDL-C, FBG, and TG in both sexes. An increase≥1.1 BMI units in 5 years was associated with increased DBP, LDL-C, TG, HbA1c, and FBG and decreased HDL-C. In contrast, decreased BMI was associated with decreased BP and LDL-C and increased HDL-C in both sexes, and decreased TG in men and FBG in women. CONCLUSIONS Maintaining a desirable weight or losing weight may help prevent hypertension and MS, even in non-obese individuals.
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Early Endocrine and Metabolic Changes After Bariatric Surgery in Grade III Morbidly Obese Patients: A Randomized Clinical Trial Comparing Sleeve Gastrectomy and Gastric Bypass.
de Barros, F, Setúbal, S, Martinho, JM, Monteiro, AB
Metabolic syndrome and related disorders. 2015;(6):264-71
Abstract
BACKGROUND We compared the early endocrine and metabolic changes associated with sleeve gastrectomy (SG) and gastric bypass (GB) in grade III obese patients. METHODS Fifty morbidly obese patients were randomized into two groups on the basis of their position in the queue-group A comprised SG and group B was GB. Comparison between the two groups was based on clinical and laboratory variables such as fasting blood glucose, insulin, homeostasis model assessment of insulin resistance (HOMA-IR), glycated hemoglobin (HbA1c), lipids, albumin, and ferritin. Patients were assessed after 7, 14, 30, 60, and 90 days and additional laboratory tests were done on the 90(th) day. RESULTS The following mean values were recorded for groups A and B, respectively: Age (years), 36.4 and 31.1; weight (kg), 123.2 and 128.3; and body mass index (BMI; kg/m(2)), 45.6 and 47.3. In the first postoperative week, group B showed a greater weight loss (P=0.047) that was not observed after 14, 30, 60, and 90 days (P>0.05). Group A had an average excess weight loss of 31.09 kg compared to 32.69 kg in group B (P=0.222). Glycemic control was better in group B (P=0.023), whereas the control of systemic arterial pressure was better in group A (P=0.026). There were no significant differences in early lipid control and micronutrient deficiencies between the two groups. CONCLUSIONS SG and GB were equally effective in promoting weight loss after 90 days. However, whereas SG was associated with better early remission rates for hypertension, GB was more effective in fasting blood glucose control but not in HOMA-IR and HbA1c levels. There was no difference in the protein or vitamin deficiencies of the two groups.
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[Association between diabetes mellitus and cardiovascular disease in Chilean adults: analysis of the National Health Survey 2009-2010].
Arteaga, A, Maiz, A, Rigotti, A, Cortés, V
Revista medica de Chile. 2014;(2):175-83
Abstract
BACKGROUND Diabetes mellitus (DM) is a recognized atherosclerotic cardiovascular disease (ACVD) risk factor. This association has yet to be quantified in the Chilean population. AIM: To compare the frequency of ACVD between diabetic and non-diabetic Chilean subjects. MATERIAL AND METHODS Data was extracted from the Chile National Health Survey (ENS) performed in 2009-2010. DM diagnosis was made with fasting glucose. ACVD (coronary, cerebral and peripheral vascular disease) was established by self-report. Major cardiovascular risk factors were identified by clinical and laboratory assessment. RESULTS A total of 5,416 adults (2,200 men and 3,216 women) were surveyed in ENS 2009-2010. Of these, 508 were diabetic and 375 reported ACVD. ACVD frequency was 16.1% and 6.1% in diabetic and non-diabetic subjects, respectively. In diabetic men, the frequency of ACVD steadily increased with age, from 5.1% to 22.1%. In diabetic women, the highest frequency of ACVD (17.4%) was found in ages ranging from 45 to 54 years. In people younger than 54 years, the odds ratio for ACVD in diabetic compared to non-diabetic subjects, was 3.59 in men (χ2 = 4.03 p < 0.03) and 5.26 in women (χ2 = 7.7 p < 0.007). Cardiovascular risk factors and metabolic syndrome were significantly more common in diabetic subjects with reported ACVD. CONCLUSIONS DM is associated with an increased frequency of ACVD and cardiovascular risk factors in Chilean adults. In line with international reports, our findings suggest that DM is also a cardiovascular risk factor in Chile, particularly relevant for women.
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10.
Triglycerides and glucose index: a useful indicator of insulin resistance.
Unger, G, Benozzi, SF, Perruzza, F, Pennacchiotti, GL
Endocrinologia y nutricion : organo de la Sociedad Espanola de Endocrinologia y Nutricion. 2014;(10):533-40
Abstract
INTRODUCTION Insulin resistance assessment requires sophisticated methodology of difficult application. Therefore, different estimators for this condition have been suggested. The aim of this study was to evaluate the triglycerides and glucose (TyG) index as a marker of insulin resistance and to compare it to the triglycerides/HDL cholesterol ratio (TG/HDL-C), in subjects with and without metabolic syndrome (MS). MATERIAL AND METHODS An observational, cross-sectional study was conducted on 525 adults of a population from Bahia Blanca, Argentina, who were divided into two groups: with MS (n=89) and without MS (n=436). The discriminating capacities for MS of the TyG index, calculated as Ln (TG [mg/dL] x glucose [mg/dL]/2), and the TG/HDL-C ratio were evaluated. Pre-test probability for MS was 30%. RESULTS The mean value of the TyG index was higher in the group with MS as compared to the group without MS and its correlation with the TG/HDL-C ratio was good. The cut-off values for MS in the overall population were 8.8 for the TyG index (sensitivity=79%, specificity=86%), and 2.4 for the TG/HDL-C ratio (sensitivity=88%, specificity=72%). The positive likelihood ratios and post-test probabilities for these parameters were 5.8 vs 3.1 and 72% vs 58% respectively. The cut-off point for the TyG index was 8.8 in men and 8.7 in women; the respective values for TG/C-HDL were 3.1 in men and 2.2 in women. CONCLUSIONS The TyG index was a good discriminant of MS. Its simple calculation warrants its further study as an alternative marker of insulin resistance.