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Physical Exercise and Dietary Supplementation in Middle-Aged and Older Women: A Systematic Review.
Sánchez-García, JC, López Hernández, D, Piqueras-Sola, B, Cortés-Martín, J, Reinoso-Cobo, A, Menor-Rodríguez, MJ, Rodríguez-Blanque, R
Journal of clinical medicine. 2023;12(23)
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Menopause is a process that marks the end of the reproductive phase in women. Menopause means both that the ovaries stop producing eggs and that there is a sharp decline in the production of female hormones such as progesterone and oestrogen. The aim of this study was to discuss the benefits of exercise and dietary supplements during menopause. This study was a systematic review of ten articles. Results showed that: - both strength and aerobic training, as well as supplementation with calcium and vitamin D, increase bone mineral density. - combined strength and resistance training provide cardiovascular benefits, increase strength and muscle mass, and reduce the risk of sarcopenia. - physical exercise has a synergistic effect with some supplements, enhancing their effectiveness. Authors concluded that physical exercise can help combat many of the symptoms associated with menopause, providing benefits for a more vital menopause and a more vital old age.
Abstract
UNLABELLED With the aging of the population in developed countries, the number of middle-aged and older women is progressively increasing. During this stage, women suffer from a number of signs and symptoms that could be reduced or treated with physical exercise and dietary supplements. The main objective of this study was to analyse the benefits of exercise and dietary supplements during menopause. MATERIALS AND METHODS A systematic review of the scientific literature was performed according to the PRISMA 2020 protocol, searching the PubMed, Cochrane, Scopus, and WOS databases. Studies that met the inclusion criteria were assessed for methodological quality using the PEDro or AMSTAR-2 scales. RESULTS The searches yielded a total of 104 results, of which 10 were selected, with methodological quality ranging from fair to excellent. Each article examined the combination of a dietary supplement plan versus a placebo; plus an exercise routine versus another routine or a sedentary lifestyle. The results showed the benefits of combining a nutritional supplementation plan with an exercise routine during menopause. CONCLUSIONS The practice of weekly strength and endurance exercises, together with the consumption of certain dietary supplements, may be a good resource for coping with menopause in a healthy way.
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Ameliorating effects of L-carnitine and synbiotic co-supplementation on anthropometric measures and cardiometabolic traits in women with obesity: a randomized controlled clinical trial.
Fallah, F, Mahdavi, R
Frontiers in endocrinology. 2023;14:1237882
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Obesity is a multifactorial relapsing chronic disease attributed to the complicated interaction of behavioural, environmental, and genetic factors. Given the adverse effects of anti-obesity medications, there has been a great appeal in the consumption of weight loss supplements among individuals suffering from obesity seeking a “magic bullet,” which is less demanding than conventional weight management protocols. The aim of this study was to assess the effects of concomitant supplementation of L-carnitine and a multistrain/multispecies synbiotic compared with L-carnitine single therapy on the anthropometric and cardiometabolic indices in healthy women with obesity. This study was a double-blind, controlled, randomised clinical trial. Following a 2-week run-in period, the participants were randomly allocated to the “L-carnitine + synbiotic” or “L-carnitine + placebo” groups (1:1 ratio). Results showed that supplementation of multistrain/multispecies synbiotic (250 mg/day) concomitant with L-carnitine (2 × 500 mg/day) for 8 weeks led to greater amendments in anthropometric and glycaemic indices, and high-density lipoprotein cholesterol in healthy female individuals with obesity without any severe side effects. Authors concluded that co-administration of L-carnitine and synbiotic may be an encouraging therapeutic strategy for obesity and related cardiometabolic complications.
Abstract
BACKGROUND Obesity, a multifactorial disorder with pandemic dimensions, is conceded a major culprit of morbidity and mortality worldwide, necessitating efficient therapeutic strategies. Nutraceuticals and functional foods are considered promising adjuvant/complementary approaches for weight management in individuals with obesity who have low adherence to conventional treatments. Current literature supports the weight-reducing efficacy of pro/pre/synbiotics or L-carnitine; however, the superiority of the nutraceutical joint supplementation approach over common single therapies to counter obesity and accompanying comorbidities is well documented. This study was designed to assess the effects of L-carnitine single therapy compared with L-carnitine and multistrain/multispecies synbiotic co-supplementation on anthropometric and cardiometabolic indicators in women with obesity. METHODS The current placebo-controlled double-blind randomized clinical trial was performed on 46 women with obesity, randomly allocated to either concomitant supplementation [L-carnitine tartrate (2 × 500 mg/day) + multistrain/multispecies synbiotic (1 capsule/day)] or monotherapy [L-carnitine tartrate (2 × 500 mg/day) + maltodextrin (1 capsule/day)] groups for 8 weeks. Participants in both groups received healthy eating dietary advice. RESULTS Anthropometric, lipid, and glycemic indices significantly improved in both intervention groups; however, L-carnitine + synbiotic co-administration elicited a greater reduction in the anthropometric measures including body mass index (BMI), body weight, and neck, waist, and hip circumferences (p < 0.001, <0.001, <0.001, = 0.012, and =0.030, respectively) after adjusting for probable confounders. Moreover, L-carnitine + synbiotic joint supplementation resulted in a greater reduction in fasting blood sugar (FBS), insulin (though marginal), and homeostatic model assessment of insulin resistance (HOMA-IR) and more increment in quantitative insulin sensitivity check index (QUICKI; p = 0.014, 0.051, 0.024, and 0.019, respectively) compared with the L-carnitine + placebo monosupplementation. No significant intergroup changes were found for the lipid profile biomarkers, except for a greater increase in high-density lipoprotein-cholesterol concentrations (HDL-C) in the L-carnitine + synbiotic group (p = 0.009). CONCLUSION L-carnitine + synbiotic co-supplementation was more beneficial in ameliorating anthropometric indices as well as some cardiometabolic parameters compared with L-carnitine single therapy, suggesting that it is a promising adjuvant approach to ameliorate obesity or associated metabolic complications through potential synergistic or complementary mechanisms. Further longer duration clinical trials in a three-group design are demanded to verify the complementary or synergistic mechanisms. CLINICAL TRIAL REGISTRATION www.irct.ir, Iranian Registry of Clinical Trials IRCT20080904001197N13.
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Transform-Us! cluster RCT: 18-month and 30-month effects on children's physical activity, sedentary time and cardiometabolic risk markers.
Salmon, J, Arundell, L, Cerin, E, Ridgers, ND, Hesketh, KD, Daly, RM, Dunstan, D, Brown, H, Della Gatta, J, Della Gatta, P, et al
British journal of sports medicine. 2023;57(5):311-319
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Regular physical activity is beneficial to children’s physical, social and mental health. However, most children fail to meet the recommended 60+ min of moderate-intensity to vigorous-intensity physical activity every day. The Transform-Us! school-based and home-based intervention was developed to determine the impact of strategies to promote children’s moderate-to-vigorous physical activity versus reduce sedentary behaviour or a combination of these strategies, on behavioural and health outcomes. The main aim of this study was to determine the efficacy of the independent and combined intervention approaches to promoting physical activity and reducing sedentary behaviour on children’s moderate-to-vigorous physical activity and sedentary time after 18 and 30 months compared with usual practice. This study is a 30-month 2×2 factorial design cluster randomised controlled trial delivered in 20 primary schools with additional home intervention components. After recruitment, schools were then randomly allocated to one of four groups. Results show that Transform-Us! had stronger effects on children’s sedentary behaviour than physical activity in both the physical activity (PA) and sedentary behaviour (SB) interventions, and there were beneficial effects on children’s adiposity for both intervention approaches. However, no clear conclusions could be drawn regarding which intervention (PA or SB) had the strongest or more consistent effects on children’s health outcomes. Authors conclude that, based on their findings, government education departments and schools should consider adopting and implementing whole-of-school programmes to promote children’s physical activity and reduce sitting through active pedagogy and supportive social and physical environments at school and home to benefit children’s sedentary time and some markers of cardiometabolic health.
Abstract
OBJECTIVE To test the efficacy of the Transform-Us! school- and home-based intervention on children's physical activity (PA), sedentary behaviour (SB) and cardiometabolic risk factor profiles. METHODS A 30-month 2×2 factorial design cluster randomised controlled trial delivered in 20 primary schools (148 Year 3 classes) in Melbourne, Australia (2010-2012), that used pedagogical and environmental strategies to reduce and break up SB, promote PA or a combined approach, compared with usual practice. Primary outcomes (accelerometry data; n=348) were assessed at baseline, 18 and 30 months. Secondary outcomes included body mass index (BMI) and waist circumference (WC) (n=564), blood pressure (BP) (n=537) and biomarkers (minimum n=206). Generalised linear mixed models estimated the interactive effects of the PA and SB interventions on the outcomes. If there was no interaction, the main effects were assessed. RESULTS At 18 months, there were intervention effects on children's weekday SB (-27 min, 95% CI: -47.3 to -5.3) for the PA intervention, and on children's average day PA (5.5 min, 95% CI: 0.1 to 10.8) for the SB intervention. At 30 months, there was an intervention effect for children's average day SB (-33.3 min, 95% CI: -50.6 and -16.0) for the SB intervention. Children's BMI (PA and SB groups) and systolic BP (combined group) were lower, and diastolic BP (PA group) was higher. There were positive effects on WC at both time points (SB intervention) and mixed effects on blood parameters. CONCLUSIONS The Transform-Us! PA and SB interventions show promise as a pragmatic approach for reducing children's SB and adiposity indicators; but achieving substantial increases in PA remains challenging. TRIAL REGISTRATION ISRCTN83725066; ACTRN12609000715279.
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Effect of high intensity interval training on arterial stiffness in obese hypertensive women: a randomized controlled trial.
Taha, MM, Aneis, YM, Hasanin, ME, Felaya, EE, Aldhahi, MI, Abdeen, HAA
European review for medical and pharmacological sciences. 2023;27(9):4069-4079
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Hypertension is considered one of the risk factors for cardiovascular disease. Hypertension is a multifactorial condition in which arterial stiffness is one of its manifestations. Exercise is a nonpharmaceutical intervention, and it is known to induce cardiovascular benefits. The aim of this study was to evaluate if the mechanistic effect of high-intensity interval training (HIIT) would affect arterial stiffness parameters in sedentary obese hypertensive women. This study is a randomised controlled trial which enrolled sixty hypertensive women between the ages of 40 and 50 years. Participants were randomly assigned to one of two groups: 1) 12-week of high-intensity interval training or 2) a control group. Results show that HIIT has a beneficial effect on lowering arterial stiffness in obese hypertensive women. Furthermore, HIIT resulted in significant improvements in several metabolic parameters namely blood pressure, total cholesterol, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol, and triglycerides. Authors conclude that HIIT for 12 weeks reduces cardiometabolic risk factors and improves arterial stiffness indices in obese hypertensive women. Thus, HIIT should be included in the treatment of obese hypertensive women to reduce their risk of cardiovascular disease.
Abstract
OBJECTIVE High-intensity interval training (HIIT) has been linked to a lower risk of cardiovascular disease and mortality. The study's overarching goal is to evaluate the impact of HIIT on arterial stiffness in obese hypertensive women. PATIENTS AND METHODS Sixty obese hypertensive women aged between 40-50 years were randomized to group A (Intervention group, n = 30) or group B (Control group, n = 30). Intervention group received HIIT (4 minutes of cycling at 85-90% of peak HR interspersed with 3-minute active recovery time at 60 - 70% of peak HR, three times per week). Arteriovenous stiffness indicators, the augmentation index corrected for heart rate 75 (AIx@75HR), and oscillometric pulse wave velocity (o-PWV), as well as cardio-metabolic parameters, were assessed before and after 12 weeks of treatment. RESULTS Finding between-group analysis showed a significant difference in AIx@75HR (95% CI: -8.45 to 0.30) , o-PWV ( 95% CI: -1.14 to 0.15), total cholesterol, (95% CI: -31.25 to -1.12), HDL-cholesterol (95% CI: 8.92 to 0.94), LDL-cholesterol (95% CI: -25.35 to -0.06) , and triglycerides (95% CI: -53.58 to -2.51). CONCLUSIONS High-intensity interval training for 12 weeks has a favorable effect on arterial stiffness in obese hypertensive women and lowers associated cardio-metabolic risk factors.
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Weight Loss and Exercise Differentially Affect Insulin Sensitivity, Body Composition, Cardiorespiratory Fitness, and Muscle Strength in Older Adults With Obesity: A Randomized Controlled Trial.
Brennan, AM, Standley, RA, Anthony, SJ, Grench, KE, Helbling, NL, DeLany, JP, Cornnell, HH, Yi, F, Stefanovic-Racic, M, Toledo, FGS, et al
The journals of gerontology. Series A, Biological sciences and medical sciences. 2022;77(5):1088-1097
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Aging is marked by increased risk for type 2 diabetes, reduced muscle mass and strength (ie, sarcopenia), decreased physical function and cardiorespiratory fitness, ectopic fat deposition, and insulin resistance all of which increase the risk for physical disability, morbidity, and mortality. These adverse health consequences associated with advanced age are exacerbated with obesity and physical inactivity. The aim of this study was to investigate the effects of weight loss with or without exercise on skeletal muscle insulin sensitivity, exclusively in obese older adults. This study is a 2-site, 6-month randomized controlled trial with a parallel group design. Eighty-six older (60–80 years of age), physically inactive men and women with obesity were randomised into one of the 3 treatments (1:1:1 allocation ratio): control (health education), calorie restriction-induced weight loss, and weight loss with exercise. Results suggest that weight loss via calorie restriction alone is insufficient to significantly improve skeletal muscle insulin sensitivity and requires the addition of exercise to incur benefit, which was also true for clinical measures of insulin resistance including haemoglobin A1C [a blood test that measures the average blood sugar levels over a period of 3 months] and fasting insulin. Authors conclude that regular exercise should be considered as a useful and manageable adjunct to traditional weight loss therapies for older adults with obesity to mitigate risk for chronic disease and maintain functional independence and quality of life.
Abstract
BACKGROUND Aging-related disease risk is exacerbated by obesity and physical inactivity. It is unclear how weight loss and increased activity improve risk in older adults. We aimed to determine the effects of diet-induced weight loss with and without exercise on insulin sensitivity, VO2peak, body composition, and physical function in older obese adults. METHODS Physically inactive older (68.6 ± 4.5 years) obese (body mass index 37.4 ± 4.9 kg/m2) adults were randomized to health education control (HEC; n = 25); diet-induced weight loss (WL; n = 31); or weight loss and exercise (WLEX; n = 28) for 6 months. Insulin sensitivity was measured by hyperinsulinemic-euglycemic clamp, body composition by dual-energy X-ray absorptiometry and MRI, strength by isokinetic dynamometry, and VO2peak by graded exercise test. RESULTS WLEX improved (p < .05) peripheral insulin sensitivity (+75 ± 103%) versus HEC (+12 ± 67%); WL (+36 ± 47%) versus HEC did not reach statistical significance. WLEX increased VO2peak (+7 ± 12%) versus WL (-2 ± 24%) and prevented reductions in strength and lean mass induced by WL (p < .05). WLEX decreased abdominal adipose tissue (-16 ± 9%) versus HEC (-3 ± 8%) and intermuscular adipose tissue (-15 ± 13%) versus both HEC (+9 ± 15%) and WL (+2 ± 11%; p < .01). CONCLUSIONS Exercise with weight loss improved insulin sensitivity and VO2peak, decreased ectopic fat, and preserved lean mass and strength. Weight loss alone decreased lean mass and strength. Older adults intending to lose weight should perform regular exercise to promote cardiometabolic and functional benefits, which may not occur with calorie restriction-induced weight loss alone.
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Consuming a Protein and Fiber-Based Supplement Preload Promotes Weight Loss and Alters Metabolic Markers in Overweight Adults in a 12-Week, Randomized, Double-Blind, Placebo-Controlled Trial.
Glynn, EL, Fleming, SA, Edwards, CG, Wilson, MJ, Evans, M, Leidy, HJ
The Journal of nutrition. 2022;152(6):1415-1425
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One of the challenges of reduced-calorie diets is the inability to control appetite. Reductions in food intake can lead to the activation of neurological pathways that increase hunger and food cravings. Adjusting nutrient intake has the potential to serve as an effective strategy for increasing feelings of satiety, which can lead to improved appetite control. The aim of this study was to determine if greater weight loss and greater changes in body composition and metabolic outcomes could be achieved following a 12-wk energy-restricted diet that included twice-daily consumption of a protein and fibre-based multi-ingredient nutritional supplement shake (HPF) compared with an isocaloric low-protein/lower-fibre placebo (LPF) in adults with overweight and obesity. This study is a double-blind randomised placebo-controlled study. Two hundred and six healthy adults were recruited and randomly assigned to intervention groups in a 1:1 ratio. Results show that the habitual consumption of an HPF preload 30 min before breakfast and lunch resulted in greater weight loss compared with an isocaloric LPF preload in overweight/obese adults. In addition, improved metabolic outcomes were observed in the HPF group throughout the 84-d randomized controlled trial. Authors conclude that diet composition rather than energy reduction alone may influence the success of a weight-loss regimen, potentially including protein and fibre content.
Abstract
BACKGROUND Higher protein and fiber diets promote weight management and metabolic health. OBJECTIVES This study aimed to determine if greater weight loss and positive changes in metabolic outcomes could be achieved with twice-daily consumption of a high-protein and fiber-based multi-ingredient nutritional shake (HPF) compared with an isocaloric low-protein, lower fiber-based placebo (LPF). METHODS Study procedures were conducted by an independent research organization under clinicaltrials.gov registration NCT03057873. Healthy overweight and obese adults [n = 206; BMI (kg/m2): 27-35; 70% female] were randomly assigned to HPF or LPF. All participants were prescribed an energy-restricted diet (500 kcal/d less than energy needs) and consumed a HPF (17 g protein, 6 g fiber) or LPF (1 g protein, 3 g fiber) shake 30 min before breakfast and lunch for 12 wk. Primary outcomes included body weight and total body fat percentage. Blood samples were collected at days (D) 0, 28, 56, and 84 for secondary analyses related to metabolic markers of health. RESULTS Although weight loss occurred in both groups, HPF had greater weight loss at D84 compared with LPF (-3.3 kg vs. -1.8 kg, P < 0.05). Percentage body fat decreased in both groups (HPF: -1.33%, LPF: -1.09%; P < 0.001) with no differences between groups. Serum total cholesterol, LDL cholesterol, and oxidized LDL decreased between -5.1% to -8.3%, whereas adiponectin increased over time in both groups; these changes occurred to a greater extent in HPF compared with LPF (all P < 0.05). CONCLUSIONS A multi-ingredient HPF nutritional supplement shake consumed as a preload before breakfast and lunch positively influenced weight management and metabolic outcomes in overweight adults compared with an LPF placebo. These findings suggest that specific nutrient factors (i.e., potentially including protein, fiber, and bioactive content) other than calorie reduction alone influence the success of a weight-loss regimen. This trial was registered at www.clinicaltrials.gov as NCT03057873.
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Yoga as a Preventive Intervention for Cardiovascular Diseases and Associated Comorbidities: Open-Label Single Arm Study.
Sharma, K, Basu-Ray, I, Sayal, N, Vora, A, Bammidi, S, Tyagi, R, Modgil, S, Bali, P, Kaur, P, Goyal, AK, et al
Frontiers in public health. 2022;10:843134
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Cardiovascular disease, a leading cause of mortality, is on the rise. Inactivity and poor dietary habits can contribute to fat accumulation, increasing cardiovascular disease risk. Yoga is a cost-effective physical activity that may reduce lipid levels. In addition, the practice of yoga may help manage stress, another contributing factor. In this open-label study, AYUSH yoga for 30 days for one hour per day was assessed to improve dyslipidaemia among healthy, comorbid, and trainer participants. The healthy-naive group's cholesterol profile improved significantly compared to the diseased group. Experienced trainers' lipid profiles differed significantly from those of yoga-naive volunteers. Low-density lipoprotein (LDL), total cholesterol (TC), and high-density lipoprotein (HDL) levels were significantly lower than baseline. A significant decrease in systolic blood pressure, pulse rate, and BMI was observed among yoga-naive and healthy participants. In addition, the trainer group had significantly lower LDL and TC/HDL ratios and higher HDL levels. Compared to the comorbid yoga group, the healthy yoga group showed significant differences in physiological parameters such as systolic blood pressure, diastolic blood pressure, and weight after a month of practice, demonstrating that yoga was more effective in healthy participants. These results can help healthcare professionals understand yoga's preventative effects on cardiovascular disease. However, as the current evidence is limited, more robust studies are needed.
Abstract
Aim: Common Yoga Protocol (CYP) is a standardized yoga protocol authored by experts from all over the world under the aegis of the Ministry of AYUSH, Ayurveda, Yoga and Naturopathy, Unani, Siddha, Sowa Rigpa and Homeopathy (AYUSH). The potential of CYP can be determined as a cost-effective lifestyle modification to prevent the risk of developing cardiovascular diseases (CVD). Methods: In this prospective trial, we compared the effect of CYP at baseline and after 1 month. A total of 374 yoga-naïve participants performed CYP under the supervision of experienced trainers. Physiological [body mass index (BMI), blood pressure, percent oxygen saturation], biochemical (fasting blood glucose and lipid profile), and neurocognitive parameters were measured before and after the intervention. Results: At day 30 of yoga practice, serum levels of low-density lipoprotein (LDL), total cholesterol (TC), and high-density lipoprotein (HDL) were found significantly improved as compared to the baseline levels observed at the time of enrollment. Similarly, the lipid profile was also obtained from experienced trainers and found to be significantly different from those of yoga-naïve volunteers. When the intervention was compared between the healthy yoga-naïve participants with yoga-naïve participants suffering from medical issues, it was found that cholesterol profile improved significantly in the healthy-naive group as compared to the diseased group (hypertension, diabetes, underwent surgery, and CVD). Conclusion: These results highlight the need for further research to better understand the effects of yoga on the primary prevention of CVD.
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Vitamin D3 Supplementation in Overweight/Obese Pregnant Women: No Effects on the Maternal or Fetal Lipid Profile and Body Fat Distribution-A Secondary Analysis of the Multicentric, Randomized, Controlled Vitamin D and Lifestyle for Gestational Diabetes Prevention Trial (DALI).
Harreiter, J, Mendoza, LC, Simmons, D, Desoye, G, Devlieger, R, Galjaard, S, Damm, P, Mathiesen, ER, Jensen, DM, Andersen, LLT, et al
Nutrients. 2022;14(18)
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Vitamin D is an important fat-soluble vitamin with steroid hormone function. It is predominately known for its essential role in calcium homeostasis and bone mineralisation. The aim of this study was to assess the effects of a vitamin D supplementation with 1600 IU Vitamin D3 per day starting in early pregnancy versus placebo on maternal and foetal lipid parameters, body fat distribution as well as pregnancy outcomes. This study is a secondary analysis of the vitamin D And LIfestyle for gestational diabetes prevention trial (DALI) Vitamin D study, including overweight/obese pregnant women with normal glucose tolerance at randomization before 20 weeks’ gestation. Results show a significant increase of maternal vitamin D levels throughout pregnancy and in cord blood in the supplementation group compared with the placebo group. However, there weren’t any significant differences between the treatment arms in maternal lipid parameters nor in foetal lipid parameters or birth outcomes. Authors conclude that daily vitamin D3 supplementation in overweight/obese pregnant women with high levels of vitamin D sufficiency does not improve maternal or foetal lipid parameters, body fat distribution or pregnancy outcomes and should not be used in pregnancy for these indications.
Abstract
Vitamin D deficiency is a common finding in overweight/obese pregnant women and is associated with increased risk for adverse pregnancy outcome. Both maternal vitamin D deficiency and maternal obesity contribute to metabolic derangements in pregnancy. We aimed to assess the effects of vitamin D3 supplementation in pregnancy versus placebo on maternal and fetal lipids. Main inclusion criteria were: women <20 weeks' gestation, BMI ≥ 29 kg/m2. Eligible women (n = 154) were randomized to receive vitamin D3 (1600 IU/day) or placebo. Assessments were performed <20, 24-28 and 35-37 weeks and at birth. Linear regression models were used to assess effects of vitamin D on maternal and cord blood lipids. In the vitamin D group significantly higher total 25-OHD and 25-OHD3 levels were found in maternal and cord blood compared with placebo. Adjusted regression models did not reveal any differences in triglycerides, LDL-C, HDL-C, free fatty acids, ketone bodies or leptin between groups. Neonatal sum of skinfolds was comparable between the two groups, but correlated positively with cord blood 25-OH-D3 (r = 0.34, p = 0.012). Vitamin D supplementation in pregnancy increases maternal and cord blood vitamin D significantly resulting in high rates of vitamin D sufficiency. Maternal and cord blood lipid parameters were unaffected by Vitamin D3 supplementation.
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The Effect of Yoga on the Lipid Profile: A Systematic Review and Meta-Analysis of Randomized Clinical Trials.
Ghazvineh, D, Daneshvar, M, Basirat, V, Daneshzad, E
Frontiers in nutrition. 2022;9:942702
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Modernisation has brought increased comforts and limited mobility in our lives at the cost of an increased prevalence of hypertension, diabetes mellitus, dyslipidaemia, and obesity, which are predecessors of major cardiovascular diseases. Prevention and control of coronary heart disease and its associated diseases are essential and can be achieved by modifying the lipid profile. The aim of this study was to systematically assess the effects of yoga on blood lipid levels. This study is a systematic review and meta-analysis of fifty-three randomised controlled studies. All studies employed a parallel design with a total of 13,191 participants whom were divided into 6,700 individuals in the control group and 6,517 in the intervention group. Results show that yoga had decreased total cholesterol, low-density lipoprotein cholesterol, triglycerides, and very low-density lipoprotein cholesterol and increased high-density lipoprotein cholesterol among yoga practitioners. Authors conclude that yoga had a striking effect on balancing lipid profiles.
Abstract
OBJECTIVES Yoga is a mind-body stress-relieving exercise that increases mental and physical health, which may have a role in the improvement of metabolic disorders. The present study has reviewed the effect of yoga on lipid profiles as a systematic review and meta-analysis. METHODS We evaluated the available randomized controlled trials on the effects of yoga-based programs, and lipid profiles by searching PubMed/Medline, Scopus, Web of Science, and the Cochrane central register of control trials up to January 2022. Both fixed and random effect analyses were used to find the relationships. Subgroup analysis was performed based on the continent, duration of the included studies, gender, and health condition of participants to discover the sources of heterogeneity. RESULT Fifty-three studies were included in the current systematic review and meta-analysis with a total sample size of 13,191. There was a striking association between yoga and total cholesterol (-10.31 mg/dl; 95% CI: -14.16, -6.45; I 2 = 82.5%, P < 0.001), low-density lipoprotein cholesterol (-8.64 mg/dl; 95% CI: -12.03, -5.25; I 2 = 75.0%, P < 0.001), high-density lipoprotein cholesterol (1.98 mg/dl; 95% CI: 0.81, 3.14; I 2 = 91.6%, P < 0.001), triglycerides (-13.50 mg/dl; 95% CI: -20.09, -6.92; I 2 = 90.7%, P < 0.001) and very low-density lipoprotein (-3.94 mg/dl; 95%CI: -6.31, -1.56; I 2 = 72.2%, P < 0.001). CONCLUSION It seems yoga interventions had a substantial effect on lipid profiles, however, more qualified trials or cohort studies are needed to conclude exactly.
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Effects of the Treatment with Flavonoids on Metabolic Syndrome Components in Humans: A Systematic Review Focusing on Mechanisms of Action.
Gouveia, HJCB, Urquiza-Martínez, MV, Manhães-de-Castro, R, Costa-de-Santana, BJR, Villarreal, JP, Mercado-Camargo, R, Torner, L, de Souza Aquino, J, Toscano, AE, Guzmán-Quevedo, O
International journal of molecular sciences. 2022;23(15)
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Metabolic syndrome is a condition characterised by at least three of the five risk factors, such as abdominal obesity, elevated fasting glucose, blood pressure and triglycerides and reduced high-density lipoprotein cholesterol (HDL-c). There is a strong link between metabolic syndrome and the development of cardiovascular disease and Type 2 diabetes. Research suggests that increasing consumption of flavonoid-rich foods can be beneficial in reducing cardiovascular morbidity and mortality. Flavonoids are bioactive compounds that possess antioxidative, anti-inflammatory, anti-cancerous, anti-mutagenic, and enzymatic properties. This systematic review of 29 randomised controlled trials evaluated the beneficial effects of long-term flavonoid supplementation in reducing the risk factors of metabolic syndrome. This review included a variety of flavonoid supplements, such as anthocyanin, hesperidin, quercetin, epigallocatechin gallate (egcg), genistein, theaflavin, catechin, and eriocitrin. Additionally, this research investigated the mechanisms behind the beneficial effects of flavonoid supplementation. Results showed that flavonoid supplementation for at least three weeks improved metabolic parameters and inflammatory markers, with hesperidin showing the greatest improvements in metabolic parameters. Healthcare professionals can use these findings to understand the potential benefits of long-term flavonoid supplementation in improving metabolic parameters. However, more robust studies are needed to determine the therapeutic dosages of different flavonoids.
Abstract
Diets high in bioactive compounds, such as polyphenols, have been used to mitigate metabolic syndrome (MetS). Polyphenols are a large group of naturally occurring bioactive compounds, classified into two main classes: non-flavonoids and flavonoids. Flavonoids are distributed in foods, such as fruits, vegetables, tea, red wine, and cocoa. Studies have already demonstrated the benefits of flavonoids on the cardiovascular and nervous systems, as well as cancer cells. The present review summarizes the results of clinical studies that evaluated the effects of flavonoids on the components of the MetS and associated complications when offered as supplements over the long term. The results show that flavonoids can significantly modulate several metabolic parameters, such as lipid profile, blood pressure, and blood glucose. Only theaflavin and catechin were unable to affect metabolic parameters. Moreover, only body weight and body mass index were unaltered. Thus, the evidence presented in this systematic review offers bases in support of a flavonoid supplementation, held for at least 3 weeks, as a strategy to improve several metabolic parameters and, consequently, reduce the risk of diseases associated with MetS. This fact becomes stronger due to the rare side effects reported with flavonoids.