Beneficial Effects of Multicomponent Functional Foods in Patients with Metabolic Syndrome
Simona DrăganGeorgiana DamianDana Emilia VelimiroviciMaria RadaDelia BerceanuMircea IurciucMarius Badalica-PetrescuMihaela ValcoviciCarmen SocaciuRuxandra Christodorescu
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Abstract:
The ANTIATERO-ALIM study was a randomized, parallel design nutritional trial testing functional food (FF) diets against the usual diet recommended in the metabolic syndrome. Functional meals included balsamic vinegar from apples and honey and grape juice enriched with polyphenols from seeds of red grapes. 300 patients with metabolic syndrome were randomized into 4 groups: gr.1: FF + Ω-3 supplements, gr.2: FF, gr.3: Ω-3 supplements, gr.4: control. IRHOMA insulin resistance, plasma lipids and oxidative stress were assessed at inclusion and at 6 months. After 6 months there was a very significant decrease of oxidative stress in group 3, followed by a significant decrease in groups 1 and 2.Keywords:
Functional food
Metabolic syndrome is also known as the insulin resistance syndrome (or syndrome X) in recognition of the pivotal pathogenic role of impaired insulin action. Various definitions of the metabolic syndrome have been proposed. The main features are abdominal adiposity, glucose intolerance, hypertriglyceridemia, low levels of high-density lipoprotein (HDL) cholesterol, hypertension in variable combinations, and in association with insulin resistance and hyperinsulinemia. Insulin resistance is implicated in common age-related diseases, including cognitive dysfunction and frailty syndrome. Non-alcoholic fatty liver disease (NAFLD), a disorder closely associated with hepatic and whole-body insulin resistance, the metabolic syndrome, and type 2 diabetes, has attained epidemic proportions. The clinical associations between hypertension, insulin resistance, and other components of the metabolic syndrome are demonstrated. Trials of bariatric surgery in patients with morbid obesity and the metabolic syndrome showed beneficial results, including decreased insulin resistance and lower levels of inflammatory cytokines.
Hyperinsulinemia
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Abstract Psoriasis in adults is associated with an increased risk of metabolic disease. Various cardiometabolic comorbidities have been reported in childhood psoriasis, but only a few studies have analyzed the prevalence of metabolic syndrome. We performed a single-center prospective study investigating the prevalence of metabolic syndrome and insulin resistance in children with psoriasis. The prevalence of metabolic syndrome was evaluated in 60 pre-pubertal children with psoriasis (age: 3–10 years), accordingly to recently established criteria for the diagnosis of metabolic syndrome in children. Insulin resistance was considered altered when the homeostatic model assessment (HOMA-IR) for insulin resistance was ≥ 90th sex- and age-specific percentile and HOMA 2-IR was > 1.8. Eighteen (30%) children with psoriasis were found to have metabolic syndrome. Sixteen (27%) children were found to have insulin resistance. Conclusion : Our data underline the importance of assessing metabolic syndrome not only in adults and adolescents but also in young children with psoriasis. What is Known: • Psoriasis in adults is strongly associated with metabolic disease and insulin resistance. • Very limited data are available on the prevalence of metabolic syndrome and insulin resistance in pre-pubertal children with psoriasis . What is New: • This study reports that in pre-pubertal children with psoriasis, there is a high prevalence of metabolic syndrome and insulin resistance. • In children with psoriasis metabolic syndrome risk factors should be assessed .
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Abstract: Homeostasis model assessment of insulin resistance (HOMA-IR) is a method to measure insulin resistance. HOMA-IR cut-offs for identifying metabolic syndrome might vary across populations and body mass index (BMI) levels. We aimed to investigate HOMA-insulin resistance cut-offs that best discriminate individuals with insulin resistance and with metabolic syndrome for each BMI category in a large sample of adults without diabetes in the baseline of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Among the 12,313 participants with mean age of 51.2 (SD 8.9) years, the prevalence of metabolic syndrome was 34.6%, and 60.1% had overweight or obesity. The prevalence of metabolic syndrome among normal weight, overweight and obesity categories were, respectively, 13%, 43.2% and 60.7%. The point of maximum combined sensitivity and specificity of HOMA-IR to discriminate the metabolic syndrome was 2.35 in the whole sample, with increasing values at higher BMI categories. This investigation contributes to better understanding HOMA-IR values associated with insulin resistance and metabolic syndrome in a large Brazilian adult sample, and that use of cut-off points according to ROC curve may be the better strategy. It also suggests that different values might be appropriate across BMI categories.
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Background: Few studies have examined the effect of insulin resistance on the association between alanine aminotransferase (ALT) and metabolic syndrome. The association between ALT levels and metabolic syndrome were determined, independently of insulin resistance in Korean populations. Methods and Results: The association between ALT and metabolic syndrome were examined in 28,456 subjects who visited 7 Health Promotion Centers at University Hospitals in Korea from 2006 to 2008. HOMA-IR index was used to represent insulin resistance index. ALT levels were found to be positively associated with metabolic syndrome after adjusting for age, alcohol intake, and smoking status. Furthermore, when additional adjustment was made for insulin resistance, this association between ALT and metabolic syndrome, although slightly attenuated, remained strongly significant. Subjects in the highest ALT quartile were found to have a higher risk of having metabolic syndrome than those in the lowest quartile (odds ratio (OR)=4.45, 95% confidence interval (CI)=3.96-4.99 for men and OR=3.51, 95%CI=2.73-4.52 for women). In addition, the association between ALT level and the risk of metabolic syndrome was significantly higher in the relatively low risk group. Conclusions: ALT levels were found to be significantly associated with metabolic syndrome independently of insulin resistance and with an interaction by age. Further cohort studies are needed to determine the usefulness of ALT levels for predicting the risk of metabolic syndrome. (Circ J 2011; 75: 964-969)
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Background: The metabolic syndrome or insulin resistance syndrome is widely prevalent and multifactorial disorder. The majority of persons with metabolic syndrome have insulin resistance. Insulin resistance and / or associated hyperinsulinemia are believed to be the direct cause of other metabolic syndrome risk factors. The present work is being done to assess the insulin status and to assess the correlation between insulin status and other component of metabolic syndrome.Methods: The present work is being carried out in 112 cases of metabolic syndrome, defined as per modified NCEP ATP III (MS-4) criteria. Serum insulin of all cases was measured by chemiluminescent microparticle immunoassay (CMIA) technique.Results: It was observed that 62% of the patients of metabolic syndrome had elevated serum insulin level (Hyperinsulinemia). Hyperinsulinemia was found to be significantly associated with diastolic hypertension and HDL in males. A high association was also noted with BMI. Insulin resistance (HOMA-IR >2.50) was significantly associated with waist circumference in males (p value<0.05).Conclusions: It was observed that metabolic syndrome is associated with elevated serum insulin levels and each component of metabolic syndrome, both biochemical as well as clinical, is associated with hyper-insulinemia and this reflects the presence of insulin resistance in subjects of study.
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To detemine the optimum extraction and purification process of polyphenols from Ilex paraguarensis,then to estimate the pure polyphenols' effects on activity of ptyalin,the refluence extraction and purification process of polyphenols from Ilex paraguarensis were investigated with the content of polyphenols as index;effects of the different content pure polyphenols on activity of ptyalin were compared using idodine-starch spectrophotometrical method.The results showed that the optimum extraction conditions were 30 fold of 70% ethanol,dip in 80 ℃ water,refluxing 60 min;EtoAc was the best reagent for purification,the content of polyphenols was 80.04% after purification;The pure polyphenols could restrain activity of ptyalin.
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