Visceral Fat Mass Research Articles

Acetate rescues defective brain-adipose metabolic network in obese Wistar rats by modulation of peroxisome proliferator-activated receptor-\u03b3

We investigated the hypothesis that acetate ameliorates brain-adipose metabolic dysfunction (BAMED) in high fat diet (HFD)-induced obesity, possibly by modulation of peroxisome proliferator-activated receptor-γ (PPAR-γ). Ten-week-old male Wistar rats were randomly assigned into four groups (n = 6/group): Control, acetate and obese with or without acetate groups received vehicle (distilled water; po), acetate (200 mg/kg, po) and 40% HFD with or without acetate respectively. The treatments lasted for 12 weeks. Obese animals showed increase in body weight, visceral fat mass, insulin and triglyceride-glucose index and a reduction in insulin sensitivity. In addition, obese animals also showed increase in plasma/hypothalamic and adipose pyruvate dehydrogenase kinase-4, lactate-pyruvate ratio, malondialdehyde, γ-glutamyl transferase, and a decrease in glucose-6-phosphate dehydrogenase, glutathione, nitric oxide and PPAR-γ. HFD also elevated plasma/hypothalamic lipid and decreased adipose lipid profile, increased hypothalamic and adipose tumor necrosis factor-α, interleukin-6 and histone deacetylase (HDAC), and elevated plasma/adipose leptin. These alterations were reversed by concomitant administration of acetate. The present results demonstrate that obesity is characterized by BAMED, which is accompanied by altered HDAC/PPAR-γ. The results in addition suggest that acetate, an HDAC inhibitor rescues BAMED with consequent normalization of body weight and visceral fat mass by modulation of PPAR-γ and suppression of oxidative stress.

A pose-independent method for accurate and precise body composition from 3D optical scans.

The aim of this study was to investigate whether digitally re-posing three-dimensional optical (3DO) whole-body scans to a standardized pose would improve body composition accuracy and precision regardless of the initial pose. Healthy adults (n = 540), stratified by sex, BMI, and age, completed whole-body 3DO and dual-energy X-ray absorptiometry (DXA) scans in the Shape Up! Adults study. The 3DO mesh vertices were represented with standardized templates and a low-dimensional space by principal component analysis (stratified by sex). The total sample was split into a training (80%) and test (20%) set for both males and females. Stepwise linear regression was used to build prediction models for body composition and anthropometry outputs using 3DO principal components (PCs). The analysis included 472 participants after exclusions. After re-posing, three PCs described 95% of the shape variance in the male and female training sets. 3DO body composition accuracy compared with DXA was as follows: fat mass R2 = 0.91 male, 0.94 female; fat-free mass R2 = 0.95 male, 0.92 female; visceral fat mass R2 = 0.77 male, 0.79 female. Re-posed 3DO body shape PCs produced more accurate and precise body composition models that may be used in clinical or nonclinical settings when DXA is unavailable or when frequent ionizing radiation exposure is unwanted.

The Effect of Regular Physical Activity on Muscle and Adipose Tissue in Premenopausal Women

Regular physical activity (PA) plays an important role in the prevention of several noninfectious chronic diseases, partly due to its positive effects on body composition. The relationship between the amount of weekly PA and body composition in premenopausal women, however, remains unclear. The objective of the study is to assess the relationship between body composition and the volume of PA in full-time employed premenopausal women. The study included 136 women (aged 41.07 ± 2.77 years). The women were divided into tertiles (T1–T3) according to the level of total reported weekly PA. T1 were women with the lowest volume of PA, T2 were women with a medium volume, and T3 were women with the highest PA volume. DXA was used to measure body mass (BM), body fat (BF), visceral fat (VFA), and fat-free mass (FFM). For the comparison of means, we used one-way ANOVA and a t test. Practical significance was verified with effect of size. Significant differences were found between women in T1 vs. T2 and T1 vs. T3. When compared with T2, T1 women had a higher BM (+6.10 kg), BF (+5.98 kg), BF (+5.42%), and VF (+17.49 cm2). When compared with T3, T1 women had a higher BM (+5.99 kg), BF (+6.42 kg), BF (+5.89%), and VFA (+20.71 cm2). We can conclude that a higher volume of weekly PA is associated with lower BF, but appears to have no effect on FFM.

Optimal cutoff values for visceral fat volume to predict metabolic syndrome in a Korean population.

Previous studies have reported the association between visceral fat and metabolic syndrome (MS); however, just few studies have been conducted to evaluate the relationship between actual visceral fat volume (VFV) and MS. This study aimed to obtain 3 dimensional VFV and subcutaneous fat volume (SFV) using abdominal computed tomography (CT) and determine MS-predictive cutoff values.A total of 250 individuals, aged 27 to 80 years, who underwent health screening with abdominal CT between November 2019 and May 2020 were included. The subcutaneous (SFA) and visceral (VFA) fat areas were quantified using axial images obtained at the level of the lowest to the highest part of the umbilicus. The SFV and VFV were quantified from the highest level of the liver dome to the pelvic floor on axial CT images. The Aquarius iNtuition software program (TeraRecon, Foster City, CA) was used to calculate the SFA, VFA, SFV, and VFV. Subcutaneous fat mass and visceral fat mass (VFM) were measured using an adipose tissue density of 0.9 g/mL. We used the modified criteria of MS proposed by the Third National Cholesterol Education Program Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults and waist circumference of ≥90 cm in men and ≥85 cm in women to define MS. Multivariate analysis of covariance was used to compare the fat areas, volumes, and mass according to the presence of MS and sex. Additionally, a receiver operating characteristic curve analysis was performed to determine the cutoff values for VFV, SFV, VFM, subcutaneous fat mass, VFA, and SFA associated with MS.Of the assessed variables, VFV and VFM had the highest area under the receiver operating characteristic curve value for predicting MS in both men and women: 0.811 (95% confidence interval, 0.743–0.868) for men and 0.826 (95% confidence interval, 0.727–0.900) for women. The MS-predictive cutoff values were 4852 cm3 and 4366.8 g for men and 3101 cm3 and 2790.9 g for women, respectively. Further, large, population-based studies are needed to validate these cutoff values.

RELATION BETWEEN SERUM FERRITIN AND VISCERAL FAT MASS IN AIN SHAMS MEDICAL STUDENTS

Background: Adipocytes are not just storage organs for fat, they play a regulatory role in body homeostasis including iron metabolism. Concerns about the effect of visceral fat mass on serum ferritin has been raised as increase visceral fat mass accumulation may lead to sequestration of Fe within the reticuloendothelial system leading to decrease dietary Fe absorption from the intestineAim of the work: This study aims to detect relation between percentage of visceral fat mass and serum ferritin level in Sample of Ain Shams medical students.Patients and Methods: this was a case–control study conducted on 150 medical students over 3 months they were divided into two subgroups: normal serum ferritin group and low serum ferritin group. All students were subjected to the detailed history and 24 hour dietary recall, anthropometric measurements, complete blood picture, measurement of serum ferritin=Results: There were significantly negative association between visceral fat mass and serum ferritin also the serum ferritin showed significant positive correlations with BMI and waist hip ratio.Conclusion: Higher visceral fat mass levels should be taken into account when assessing body Fe status and should probably be treated before providing dietary recommendations to correct low serum ferritin level.

Meal-induced inflammation: postprandial insights from the Personalised REsponses to DIetary Composition Trial (PREDICT) study in 1000 participants

ABSTRACTBackgroundMeal-induced metabolic changes trigger an acute inflammatory response, contributing to chronic inflammation and associated diseases.ObjectivesWe aimed to characterize variability in postprandial inflammatory responses using traditional (IL-6) and novel [glycoprotein acetylation (GlycA)] biomarkers of inflammation and dissect their biological determinants with a focus on postprandial glycemia and lipemia.MethodsPostprandial (0–6 h) glucose, triglyceride (TG), IL-6, and GlycA responses were measured at multiple intervals after sequential mixed-nutrient meals (0 h and 4 h) in 1002 healthy adults aged 18–65 y from the PREDICT (Personalised REsponses to DIetary Composition Trial) 1 study, a single-arm dietary intervention study. Measures of habitual diet, blood biochemistry, gut microbiome composition, and visceral fat mass (VFM) were also collected.ResultsThe postprandial changes in GlycA and IL-6 concentrations were highly variable between individuals. Participants eliciting an increase in GlycA and IL-6 (60% and 94% of the total participants, respectively) had mean 6-h increases of 11% and 190%, respectively. Peak postprandial TG and glucose concentrations were significantly associated with 6-h GlycA (r = 0.83 and r = 0.24, respectively; both P < 0.001) but not with 6-h IL-6 (both P > 0.26). A random forest model revealed the maximum TG concentration was the strongest postprandial TG predictor of postprandial GlycA and structural equation modeling revealed that VFM and fasting TG were most strongly associated with fasting and postprandial GlycA. Network Mendelian randomization demonstrated a causal link between VFM and fasting GlycA, mediated (28%) by fasting TG. Individuals eliciting enhanced GlycA responses had higher predicted cardiovascular disease risk (using the atherosclerotic disease risk score) than the rest of the cohort.ConclusionsThe variable postprandial increases in GlycA and their associations with TG metabolism highlight the importance of modulating TG in concert with obesity to reduce GlycA and associated low-grade inflammation–related diseases.This trial was registered at clinicaltrials.gov as NCT03479866.

Development of a nutritional index to evaluate the effectiveness of total parenteral nutrition during the early postoperative period after pancreaticoduodenectomy.

Malnutrition leads to adverse effects on the short- and long-term prognosis in patients with periampullary diseases who underwent surgery. Nutritional risk indicators based on albumin and body weight have been developed to evaluate nutritional status and nutritional therapy efficacy, but no standard objective measurement has been devised to evaluate nutritional status during the early period after pancreaticoduodenectomy (PD). Therefore, this study aimed to assess the efficacy of total parenteral nutrition (TPN) during the early postoperative period after PD. We analyzed 28 patients with a periampullary disease-common bile duct cancer, ampulla of Vater cancer, pancreatic head cancer, neuroendocrine tumor, chronic pancreatitis-who have undergone PD from Jan. 1, 2012 to Dec. 31, 2016. For all the patients, TPN was administered from postoperative day (POD) 1 at 25 Kcal/kg ideal body weight. Various nutritional indicators were measured such as Body mass index, nutritional risk index, protein, albumin, prealbumin, C-reactive protein. The volume of skeletal muscle area, muscle density, visceral and subcutaneous fat areas were assessed two times, preoperatively and on POD 7 by CT scan at the 3rd lumbar spine (L3) level. Average age of the 28 study subjects (18 males and 10 females) was 63.5±9.7 years. Although there is no difference in BMI between preoperative result and POD 7, protein, albumin, and prealbumin levels were significantly lower POD 7 the preoperative (P<0.001), but CRP was higher (P<0.001), and prealbumin and CRP levels were negatively correlated (R=-0.682, P<0.01). Muscle mass increased postoperatively (P=0.02), but the amount of visceral fat decreased (P=0.00). Based on CRP, and muscle density results, muscle, visceral and subcutaneous fat masses did not change after PD. In order to evaluate the nutritional status accurately after the hepato-biliary radical surgery, we suggest the muscle and fat mass measurement that can adjust the degree of inflammation during the early postoperative period.

88The Role of Visceral Adiposity in the Metabolic Phenotype of multi-ethnic South-East Asian population

Abstract Background Ethnic Asians are known to exhibit worse metabolic phenotypes as compared to Caucasians despite lower body mass index1, 2. Ethnic South-Asians and Malays were also found to display greater insulin resistance than Chinese3. One potential biological mechanism for this phenomenon is the inter-ethnic differences in the visceral adiposity deposition4. Here we hypothesised that visceral adiposity contributes to ethnic differences in metabolic phenotype more than subcutaneous adiposity. Methods We quantified total, subcutaneous and visceral adipose deposition (BMI, waist circumferences, Dual-energy X-ray absorptiometry [DEXA]) and metabolic phenotypes (blood pressure, fasting glucose and lipid profile, HbA1c) in 3403 participants. Analyses were adjusted for age, and sex. Results Participants were 40.6% male, mean age 49.7±11.4 years, Chinese: Malays: South-Asians in 72:9:19 ratio. Ethnic Malays and South-Asians had raised blood pressure, fasting glucose, triglycerides, HbA1c, reduced HDL, and higher total and visceral fat than Chinese (P &amp;lt; 0.001), independent of covariates. Increased adiposity was strongly associated with poorer metabolic phenotype (all P &amp;lt; 0.0001), with strongest associations found amongst visceral Fat Mass Index (□□95%CI]=0.48[0.20;0.23]) and android/gynoid ratio (□[95%CI]=0.55[1.31;1.63]) with triglycerides levels. Visceral adiposity contributed 17-40% (all P &amp;lt; 0.0001) to the variance in the associations of ethnic Malays and South-Asians with metabolic phenotypes, 3-7% higher than subcutaneous adiposity. Conclusions Visceral adiposity contributes to poorer metabolic phenotype in ethnic Malays and South Asians as compared to Chinese. Key messages Visceral adiposity expansion is an important determinant of metabolic health in Asian populations.

Changes in body weight and metabolic risk during time restricted feeding in premenopausal versus postmenopausal women

BackgroundTime restricted feeding (TRF) involves confining the eating window to a specific number of hours, and fasting for the remaining hours of the day. ObjectiveThis study examined if changes in body weight and metabolic risk factors during TRF, differ between premenopausal and postmenopausal women. MethodsThis is a secondary analysis of an 8-week TRF study (4–6 h eating window, 18–20 h fasting window daily) conducted in adults with obesity. Male participants were excluded, and female subjects were classified in two groups based on menstrual status: premenopausal (n = 13), or postmenopausal (n = 19). Perimenopausal women were excluded from the original study. ResultsBody weight decreased by week 8 in premenopausal women (−3.3 ± 0.4%) and postmenopausal women (−3.3 ± 0.5%) (main effect of time, P < 0.001), with no difference between groups (no group × time interaction). Adherence was excellent in both groups, with premenopausal women adhering to their prescribed eating window on 6.2 ± 0.1 d/week, and postmenopausal women adhering to their window on 6.2 ± 0.2 d/week. Fat mass, lean mass, fasting insulin, insulin resistance, and 8-isoprostane (marker of oxidative stress) were reduced similarly in both groups (main effect of time, P < 0.05 for all comparisons). Visceral fat mass, relative skeletal muscle index (RSMI), blood pressure, LDL cholesterol, HDL cholesterol, triglycerides, fasting glucose, HbA1c, TNF-alpha and IL-6 remained unchanged in both groups by week 8. ConclusionThese findings suggest that the weight loss and metabolic benefits of TRF do not differ between premenopausal and postmenopausal women with obesity.

MicroRNA-29a in Osteoblasts Represses High-Fat Diet-Mediated Osteoporosis and Body Adiposis through Targeting Leptin.

Skeletal tissue involves systemic adipose tissue metabolism and energy expenditure. MicroRNA signaling controls high-fat diet (HFD)-induced bone and fat homeostasis dysregulation remains uncertain. This study revealed that transgenic overexpression of miR-29a under control of osteocalcin promoter in osteoblasts (miR-29aTg) attenuated HFD-mediated body overweight, hyperglycemia, and hypercholesterolemia. HFD-fed miR-29aTg mice showed less bone mass loss, fatty marrow, and visceral fat mass together with increased subscapular brown fat mass than HFD-fed wild-type mice. HFD-induced O2 underconsumption, respiratory quotient repression, and heat underproduction were attenuated in miR-29aTg mice. In vitro, miR-29a overexpression repressed transcriptomic landscapes of the adipocytokine signaling pathway, fatty acid metabolism, and lipid transport, etc., of bone marrow mesenchymal progenitor cells. Forced miR-29a expression promoted osteogenic differentiation but inhibited adipocyte formation. miR-29a signaling promoted brown/beige adipocyte markers Ucp-1, Pgc-1α, P2rx5, and Pat2 expression and inhibited white adipocyte markers Tcf21 and Hoxc9 expression. The microRNA also reduced peroxisome formation and leptin expression during adipocyte formation and downregulated HFD-induced leptin expression in bone tissue. Taken together, miR-29a controlled leptin signaling and brown/beige adipocyte formation of osteogenic progenitor cells to preserve bone anabolism, which reversed HFD-induced energy underutilization and visceral fat overproduction. This study sheds light on a new molecular mechanism by which bone integrity counteracts HFD-induced whole-body fat overproduction.

Gestational and early childhood phthalate exposures and adolescent body composition: The HOME Study

BACKGROUND AND AIM: Early life phthalate exposures may cause metabolic disruption. However, results from human studies are inconsistent and few have examined body composition during adolescence. We investigated associations of urinary phthalate metabolite concentrations during gestation and childhood with body composition at age 12 years to identify periods of heightened susceptibility. METHODS: We used data from 206 mother-child pairs in a prospective pregnancy and birth cohort enrolled in Cincinnati, OH from 2003-2006. We measured nine phthalate metabolites in spot urine samples collected twice from mothers during pregnancy and up to six times from children at 1, 2, 3, 4, 5 and 8 years. At age 12 years, we assessed whole body fat and lean mass, android, gynoid, and visceral fat mass with dual x-ray absorptiometry, and calculated android to gynoid %fat ratio and age- and sex-standardized fat and lean mass index Z-scores. Using a multiple informant model, we estimated the covariate-adjusted associations between urinary phthalate metabolite concentrations at each time period and adiposity Z-scores at age 12 years. We assessed effect measure modification by child sex using stratified models. RESULTS:Associations of urinary mono-n-butyl, mono-isobutyl, and mono-benzyl phthalate concentrations with 12-year body composition outcomes differed by time period, with stronger associations for exposures during gestation and later childhood. For example, each 10-fold increase in urinary mono-benzyl phthalate concentrations during gestation at ages 5 and 8 years was associated with a -0.34 (95%CI: -0.72,0.05), -0.44 (95%CI: -0.83,-0.05), and -0.35 (95%CI:-0.71,0.00) Z-score difference in whole body lean mass at age 12 years, respectively, but not for exposure in in early childhood. Slightly weaker but similar patterns of association were found with other body composition measures; associations did not differ by child sex. CONCLUSIONS:Exposure to certain phthalates during gestation and late childhood may be associated with adolescent body composition, particularly lean mass. KEYWORDS: Children’s environmental health, Endocrine disrupting chemicals, Obesity and metabolic disorders, Phthalates

Measurements of Alterations in Bone Mineral Density, and Body Composition in a Group of Type-2 Diabetic Women

Aim: To assess the body composition of fat mass, lean mass, visceral fat mass, and total body water in DM patients and compares their findings with a healthy control group. Material and Methods: A total of 86 people including 40 diabetes Mellitus type 2 matched for sex and age with 46 healthy control participated in the study. BMDs of the lumbar vertebrae and the hip regions like (total femur, femoral neck) were assessed using the DXA technique. The mean age of (DM) group was 59 ± 11.82 years, the height 1.55 ± 0.05 m., the weight 80.82 ± 13.25 kg, and BMI 33.81 ± 6.76 kg/m2. Results: The differences in measurements of the lumbar spine BMD (1.12 ± 0.13 g/cm2), total femur BMD (1.10± 0.17 g/cm2) neck of femur BMD (0.85± 0.35 g/cm2), and total BMD of the body (0.90± 0.06 g/cm2) were highly significant in healthy control group as compared to DM patients 0.84 ± 0.13 g/cm2, 0.99±0.15 g/cm2, 0.82± 0.24 g/cm2 and 0.79 ± 0.09 g/cm2 respectively. Conclusion: The results shows a highly significant in the lumbar spine, total femur, and total BMC, and not significant in the neck of the femur. The total body lean compartment was not significantly different between DM patients and healthy control women groups. The total body water compartment in the DM women group was highly significant lower different comparing with a healthy control group. The mathematical equations to predict total bone density in DM type 2 and healthy control women were calculated.

Optimization of change in epicardial fat thickness for obese patients who lost weight via the bariatric surgery method using central composite and Box-Behnken experimental designs.

BackgroundThe aim of this study was to detect the optimal values for Age, Body Mass Index (BMI) and HOMA-IR of obese patients prior to surgery that results in a maximal decrease of visceral fat mass 6 months after bariatric surgery.MethodIn this study, 33 experimental set-ups were designed. This study was approved by Baskent University Medical and Health Sciences Research Board (Approval number: KA16/281). The study data consisted of 40 obese patients who lost weight through the bariatric surgery between February 2015 and December 2016. The values of BMI, Age and HOMA for the obese patients who lost weight through the bariatric surgery were evaluated in three categories and at three levels; the response variable was determined as the Change in Epicardial Fat Thickness (ΔEFT).ResultsAs a result of CCD analysis, the optimum ΔEFT = 2.571 was determined when Age = 30.52, BMI = 45.30, and HOMA = 34.62. As a result of the BBD analysis, the optimum ΔEFT = 3.756 was determined, when Age = 38.36, BMI = 63.18, and HOMA = 14.95. The optimum ΔEFT was modeled with Contour and Response Surface plots.ConclusionBased on the two surface response models used in our study, the maximal decrease of visceral fat mass as assessed by measuring echography images of epicardial fat thickness can be obtained by bariatric surgery of persons who are between 31 and 38 year old, have a BMI between 45 and 63 kg/m2 and have a HOMA-IR 34 between 15 and 35. Central Composite Design and a Box-Behnken Design of suitable patient data predicted 35 optimal settings of independent variables for the maximal clinical response of an intervention.

Protein supplementation during an energy-restricted diet induces visceral fat loss and gut microbiota amino acid metabolism activation: a randomized trial

Interactions between diet and gut microbiota are critical regulators of energy metabolism. The effects of fibre intake have been deeply studied but little is known about the impact of proteins. Here, we investigated the effects of high protein supplementation (Investigational Product, IP) in a double blind, randomised placebo-controled intervention study (NCT01755104) where 107 participants received the IP or an isocaloric normoproteic comparator (CP) alongside a mild caloric restriction. Gut microbiota profiles were explored in a patient subset (n = 53) using shotgun metagenomic sequencing. Visceral fat decreased in both groups (IP group: − 20.8 ± 23.2 cm2; CP group: − 14.5 ± 24.3 cm2) with a greater reduction (p < 0.05) with the IP supplementation in the Per Protocol population. Microbial diversity increased in individuals with a baseline low gene count (p < 0.05). The decrease in weight, fat mass and visceral fat mass significantly correlated with the increase in microbial diversity (p < 0.05). Protein supplementation had little effects on bacteria composition but major differences were seen at functional level. Protein supplementation stimulated bacterial amino acid metabolism (90% amino-acid synthesis functions enriched with IP versus 13% in CP group (p < 0.01)). Protein supplementation alongside a mild energy restriction induces visceral fat mass loss and an activation of gut microbiota amino-acid metabolism.Clinical trial registration: NCT01755104 (24/12/2012). https://clinicaltrials.gov/ct2/show/record/NCT01755104?term=NCT01755104&draw=2&rank=1.

Relationship Between Skeletal Muscle Mass to Visceral Fat Area Ratio and Cardiovascular Risk in Type 2 Diabetes.

PurposeEither visceral fat or muscle mass is identified to be correlated with cardiometabolic diseases, especially in type 2 diabetes (T2DM). But, the synergistical effect of visceral fat along with skeletal muscle on the risk of cardiovascular diseases (CVD) in T2DM still remains controversial. Thus, we investigated the relationship between skeletal muscle mass to visceral fat area ratio (SVR) and 10-yr CVD risk scores.Patients and MethodsA total of 291 T2DM patients aged 40–80 years were enrolled in the current study. SVR was evaluated based on bioelectrical impedance measurements. Both Framingham risk score system and China-PAR risk model were applied to estimate future 10-yr CVD risk in T2DM population.ResultsThe 10-yr CVD risk scores increased with the decreased SVR tertiles in T2DM (All P<0.001). SVR value was obviously lower in the high-risk group than that of low- or moderate-risk group (All P<0.05). However, no significant differences were observed in BMI among different CVD risk groups. Besides, SVR was correlated with Framingham risk score (r=−0.408; P<0.001) and China-PAR risk score (r=−0.336; P<0.001). HOMA-IR, triglycerides and blood pressure were also inversely related to SVR (All P<0.05). Furthermore, SVR value was independently correlated with both Framingham 10-yr CVD risk score (β=−0.074, P=0.047) and China-PAR risk score (β=−0.100, P=0.004) after adjustment for confounding factors, including age, gender, BMI, FPG, HbA1c, diabetes duration, albumin, creatinine, uric acid, smoking, blood pressure and blood lipid. The linear regression analysis was also conducted for men and women, respectively, indicating that the negative relationship between SVR and 10-yr CVD risk was observed in men but not in women.ConclusionT2DM populations who have lower SVR value are more likely to increase CVD risk. SVR levels show marked and inverse correlation with estimated 10-yr CVD risk in T2DM, indicating that SVR could be a valuable parameter to assess the risk of CVD events in clinical practice, especially in men.

Interactions between dietary patterns with the age of onset of obesity and body composition among obese and overweight female: A cross -sectional study.

Obesity is associated to dietary factors, mostly those related to nutrients and energy. The aim of the present study was to explore the interaction of dietary patterns and the age of onset of obesity on anthropometric indicators among Iranian women. A cross-sectional study was conducted on 266 obese and overweight Iranian females who were between 18 and 48 years old with BMI>25 (kg/m2).Dietary intake was assessed using a semi-quantitative Food Frequency Questionnaire (FFQ) was calculated for all participants. Three dietary patterns principle component analysis (PCA) was used as a factor score for each of the three dietary patterns. Anthropometric evaluation was performed for participants. A significant inverse relationship (p<0.05) was found between DASH score and the age of onset of obesity under 18 years old, fat-free mass, and weight in women. Conversely it was observed that higher weight and body mass index (BMI) were associated with the age of onset of obesity under 18 years old compared to participants more than 18 years old (p<0.05). Moreover, it was observed that higher adherence to DASH dietary pattern has a positive correlation with lower BMI (P=0.07), visceral fat (P=0.03), and body fat mass (BFM) (P=0.07). A significant interaction between DASH pattern and onset obesity under 18 years old on weight observed in women (P=0.001). This study suggested that DASH dietary pattern is a good choice for weight management and a healthier body in general and may decrease the development of obesity-related diseases. It was suggested that higher adherence to DASH pattern may reduce the obesity markers and decrease the development of obesity-related diseases.

Moringa oleifera leaves ethanolic extract ameliorates high fat diet-induced obesity in rats

Obesity is one of the major health problems worldwide. This study aimed to evaluate anti-obesity potential of Moringa oleifera leaves ethanolic extract (MOE) in rats. Fifty male Wistar rats of 100–120 g body weight (BW) were randomly allocated to 5 groups (n = 10) as follows: Control (Cont group) was fed basal diet. Group II (M-group) was fed basal diet and orally given MOE (300 mg/kg BW) for 14 weeks. Group III (HFD-group) was fed a high fat diet (HFD) for 14 weeks. Group IV (HFD + M-group) was fed HFD and given MOE as in group II. Group V (HFD then M-group) was fed HFD for 8 weeks then basal diet and received MOE as group II for another 6 weeks. Phytochemical analysis of MOE revealed the presence of ferulic acid, kaempferol, cinnamic acid, ellagic acid, naringenin, rutin, caffeic acid, chlorogenic acid, methyl gallate gallic acid, catechin, vanillin, caffeic acid, coumaric acid, syringic acid, and pyrocatechol. Feeding HFD significantly elevated the serum level of total cholesterol, triacylglycerol, low density lipoprotein, glucose, insulin, leptin, malondialdehyde; elevated hepatic expression of nuclear factor-kappa β (NFκβ) and induced various histopathological changes in liver. Moreover, it lowered serum levels of high-density lipoprotein, adiponectin, serum superoxide dismutase activity and catalase activity compared to control group. Interestingly, administration of MOE to HFD-fed animals either concurrently (HFD + M group), or after induction of obesity (HFD then M group), significantly reversed the HFD-induced increase in BW and visceral fat mass, hyperglycemia, hyperleptinemia, hyperinsulinemia, hypoadiponectinemia, dyslipidemia; increased lipid peroxidation, hepatic NFκβ protein expression; restored normal hepatic tissue architecture and antioxidant activity. In conclusion, MOE ameliorated HFD-induced obesity, adiposity, serum biochemical and hepatic histopathological alterations. MOE accomplished these effects mostly through the anti-obesity, anti-inflammatory, anti-oxidant activities of its various bioactive identified compounds.

The Impact of High-Fat Diet and Restrictive Feeding on Natural Killer Cells in Obese-Resistant BALB/c Mice.

Background: The association of obesity and an increased risk for severe infections and various cancer types is well-described. Natural killer (NK) cells are circulating lymphoid cells and promoters of the immune response toward viruses and malignant cells. As demonstrated in previous studies the phenotype and functionality of NK cells is impaired in obesity. So far, the majority of animal studies were exclusively performed using ad libitum feeding regimes and it remained unclear whether NK cell alterations are mediated by obesity-associated immunological changes or by direct effects of the dietary composition. Therefore, the aim of the present study was to characterize NK cells in the peripheral blood of obese-resistant BALB/c mice supplied a normal-fat diet (NFD) or high-fat diet (HFD), ad libitum or in a restrictive manner.Methods: Twenty-eight BALB/c-mice were fed a NFD or HFD either ad libitum or in a restrictive feeding regime with 90% of the mean daily diet supply of the corresponding ad libitum group (each group n = 7). Blood and visceral adipose tissue were collected for flow cytometric analysis, analysis of plasma cytokine concentrations by multiplex immunoassay and real-time RT-PCR analyses. For statistical analyses two-way ANOVA with the factors “feeding regime” and “diet” was performed followed by a post-hoc Tukey's multiple comparison test and to compare means of the four mouse groups.Results: Ad libitum-feeding of a HFD in BALB/c mice has no influence on body weight gain, visceral fat mass, plasma cytokine concentrations, immune cell populations as well as the number, frequency and phenotype of NK cells. In contrast, restrictive feeding of a HFD compared to NFD led to significantly higher body weights, visceral fat mass and plasma interferon-γ concentrations which was associated with changes in the frequencies of granulocytes and NK cell subsets as well as in the surface expression of NK cell maturation markers.Conclusion: Results demonstrate for the first time that HFD-induced alterations in NK cells are consequences of the obese associated immunological profile rather than a direct effect of the dietary composition. These data can help to clarify the increased risk for cancer and severe infections in obesity.

Changes in abdominal subcutaneous adipose tissue phenotype following menopause is associated with increased visceral fat mass

Menopause is associated with a redistribution of adipose tissue towards central adiposity, known to cause insulin resistance. In this cross-sectional study of 33 women between 45 and 60 years, we assessed adipose tissue inflammation and morphology in subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) across menopause and related this to menopausal differences in adipose tissue distribution and insulin resistance. We collected paired SAT and VAT biopsies from all women and combined this with anthropometric measurements and estimated whole-body insulin sensitivity. We found that menopause was associated with changes in adipose tissue phenotype related to metabolic dysfunction. In SAT, postmenopausal women showed adipocyte hypertrophy, increased inflammation, hypoxia and fibrosis. The postmenopausal changes in SAT was associated with increased visceral fat accumulation. In VAT, menopause was associated with adipocyte hypertrophy, immune cell infiltration and fibrosis. The postmenopausal changes in VAT phenotype was associated with decreased insulin sensitivity. Based on these findings we suggest, that menopause is associated with changes in adipose tissue phenotype related to metabolic dysfunction in both SAT and VAT. Whereas increased SAT inflammation in the context of menopause is associated with VAT accumulation, VAT morphology is related to insulin resistance.

C-reactive protein in adult Samoans: Population variation and physiological correlates.

C-reactive protein (CRP) has been associated with adiposity and cardiometabolic disease risk in many populations but remains remarkably understudied in Pacific Islander populations. Here, we provide the first examination of correlates of CRP in adult Samoans (n=108, ages 35-55 years) to test the hypotheses that CRP exhibits sex-dependent associations with measures of BMI, adiposity, and cardiometabolic disease risks. We analyzed associations between measures of adiposity (total fat mass, visceral fat mass, percent total body fat), body mass index (BMI), cardiometabolic risks, behaviors, demographics, and CRP. Unadjusted analyses of CRP were undertaken using Pearson's pairwise, and Spearman's rank correlations; one-way analysis of variance and Kruskal-Wallis tests assessed variables by CRP quartiles. Adjusted analyses of CRP correlates were examined using generalized linear regression. Serum CRP ranged from 0.08 to 13.3mg/L (median 1.4mg/L) and varied significantly by sex t (108)=-2.47, p=.015. CRP was weakly to moderately associated with measures of adiposity and BMI (r and ρ ranged between 0.25 and 0.50, p < .05) and some cardiometabolic markers (including HbA1c, fasting insulin, and insulin resistance). CRP was significantly associated with percent body fat in women and men, adjusting for other variables. These data are among the first to demonstrate CRP correlates in a sample of adult Samoans. CRP differed by sex and was associated with BMI, adiposity, and some cardiometabolic risk markers. These data align with findings in other populations.