Upper-body Obesity Research Articles

Glycerol Handling in Paired Visceral and Subcutaneous Adipose Tissues in Women with Normal Weight and Upper-Body Obesity.

In adipose tissue, reduced expression of the glycerol channel aquaporin 7 (AQP7) has been associated with increased accumulation of triglyceride. The present study determines the relative protein abundances of lipolytic enzymes, AQP7, and cytosolic phosphoenolpyruvate carboxykinase (PEPCK-C) in paired mesenteric and omental visceral adipose tissue (VAT) and abdominal and femoral subcutaneous adipose tissue (SAT) in women with either normal weight or upper-body obesity. No differences in the expression of hormone-sensitive lipase (HSL) or AQP7 were found between the two groups in the four depots. The expression of adipocyte triglyceride lipase (ATGL) and HSL were higher in omental VAT and femoral SAT than in mesenteric VAT in both groups of women. Similarly, AQP7 expression was higher in omental VAT than in mesenteric VAT. The expression of PEPCK-C was lower in omental VAT than in femoral SAT. No correlation between the expression of AQP7 and the mean adipocyte size was observed; however, the expression of PEPCK-C positively correlated with the mean adipocyte size. In conclusion, a depot-specific protein expression pattern was found for ATGL, HSL, AQP7, and PEPCK-C. The expression pattern supports that the regulation of AQP7 protein expression is at least in part linked to the lipolytic rate. Furthermore, the results support that the synthesis of glycerol-3-phosphate via glyceroneogenesis contributes to regulating triglyceride accumulation in white adipose tissue in women.

Exploring cardiovascular risk: The significance of neck circumference in predicting upper body obesity and metabolic health

Exploring cardiovascular risk: The significance of neck circumference in predicting upper body obesity and metabolic health

The association between physical activity and neck circumference with cardiovascular disease risk in older wheelchair users.

To examine the association between physical activity, neck circumference, and cardiovascular disease risk in older wheelchair users. A cross-sectional study. Sixty-one Korean wheelchair users aged 50 years and older. Physical activity was assessed using a self-administered questionnaire. Neck circumference was measured with a tape ruler. Cardiovascular disease risk was evaluated by calculating the Framingham risk score (FRS) for estimating 10-year cardiovascular disease risk, which was classified as low-moderate (19% or less) or high risk (20% or more). The FRS for 10-year cardiovascular disease risk was inversely related to physical activity (beta [SE] = -0.213 (0.103), p = 0.043) and positively related to neck circumference (beta [SE] = 1.331 ± 0.419, p = 0.003). Binary logistic regression showed that those with low physical activity (odds ratio [95% confidence interval] = 4.256 (1.188~15.243), p = 0.026) or a large neck circumference (odds ratio [95% confidence interval] = 3.645 (1.172~11.338), p = 0.025) had a higher risk for high cardiovascular disease risk compared with those with high physical activity or normal neck circumference. The current study findings suggest that an intervention targeting physical inactivity and upper-body obesity should be implemented to reduce cardiovascular disease risk in older wheelchair users.

Insulin regulation of regional lipolysis in upper-body obese and lean humans.

Upper-body obesity (UBO) results in insulin resistance with regards to free fatty acid (FFA) release; how this differs by fat depot and sex between adults with UBO and lean adults is unknown. We tested the hypothesis that insulin suppression of FFA release from the splanchnic bed, leg fat, and upper-body nonsplanchnic (UBNS) adipose tissue would be impaired in UBO. Fourteen volunteers with UBO (7 men and 7 women) and 14 healthy volunteers with normal weight (7 men and 7 women) participated in studies that included femoral artery, femoral vein, and hepatic vein catheterization. We then measured leg and splanchnic plasma flow as well as FFA kinetics (using isotopic tracers) under overnight fasting as well as low- and high-dose insulin infusion using the insulin clamp technique. We found the expected insulin resistance in UBO; the most quantitatively important difference between adults with UBO and lean adults was greater FFA release from UBNS adipose tissue when plasma insulin concentrations were in the postprandial, physiological range. There were obesity, but not sex, differences in the regulation of splanchnic FFA release and sex differences in the regulation of leg FFA release. Reversing the defects in insulin-regulated UBNS adipose tissue FFA release would have the greatest effect on systemic FFA abnormalities in UBO. These studies were supported by the US Public Health Service (grants DK45343 and DK40484), the Novo Nordic Foundation (grant NNF18OC0031804 and NNF16OC0021406), and the Independent Research Fund Denmark (grant 8020-00420B).

Effectiveness of an Educational Intervention on Prevention of health problems due to Internet addiction among students of selected college of New Delhi

Internet Addiction (IA) has been recognized as a global concern that can lead to sedentary lifestyles and a decline in physical fitness. Digital eye strain, pain in the upper body parts, obesity, insomnia, anxiety, and depression are health problems commonly reported among internet users. There is more requirement for internet use among students owing to their educational or research needs. There is an urgent need to sensitize students about the health hazards due to IA and ways to prevent them. Thecurrent studyevaluates the effectiveness of educational intervention on the prevention of health problems due to internet addiction and to find out the association of post-test knowledge and practice score with selected demographic variables Quantitative Experimental research with one group Pre-test, and Post-test design was conducted at PGDAV College, New Delhi among 54 college students using total enumeration sampling. The t-value (18.39) and (14.76) between pre-test and post-test knowledge and practice scores were statistically significant at 0.05 level of significance. In the current study, the educational intervention was effective in enhancing the knowledge and practice expressed on the prevention of health problems due to internet addiction. A significant association was found between post-test knowledge scores and the academic year. However, no significant association was found between post-test practice scores and selected variables.

Novel Anthropometric Indices as Screening Tools for Obesity: A Study on Healthy Iranians.

Upper body fat distribution is more related to cardiometabolic diseases than central obesity. Neck circumference (NC) and neck-to-height ratio (NHtR) are two indicators of upper body obesity that are affordable, easy to obtain, highly reproducible, and more practical in the crowded health centers than the classic anthropometric indices. 18-65-year-old individuals with no past medical history were included. After obtaining written informed consent, they were screened for hypertension, high blood glucose, and other abnormal laboratory results. Data were analyzed using SPSS and Mann-Whitney U test, Chi square test, Spearman's correlation coefficient, and ROC curve. In our 2,812 participants, NC had the lowest area under the curve (AUC) in both male and female obese and overweight subjects. NHtR and hip circumference (HC) had the highest AUC in men and women with obesity, respectively. The highest sensitivity for overweight men and women belonged to waist circumference (WC) and waist-to-height ratio (WHtR), respectively, and for both males and females with obesity, NHtR had the highest sensitivity. The cutoff point of NHtR had the same value for males and females. HC and NHtR had the highest positive likelihood ratio (PLR) for obesity in men. In addition, HC and WC had the highest PLR for obesity in women. In this study, we revealed that NC had the lowest and NHtR and HC had the highest predictive value for obesity. Furthermore, for both males and females with obesity, NHtR had the highest sensitivity. HC had the highest PLR for obesity in both genders. Our results warrant prospective studies to evaluate the role of NHtR and other novel anthropometric indices in the risk of cardiometabolic diseases.

PREVALENCE OF HYPERTENSION AND ASSOCIATED RISK PREDICTORS AMONG SCHOOL GOING ADOLESCENTS LIVING IN WEST BENGAL, INDIA

Background: Hypertension or high blood pressure (HBP) is a most common non-communicable disease. Childhood HBP is a major public health problem worldwide as it tracks to adulthood. HBP was associated with obesity. Objective: This study was undertaken to investigate the prevalence of high blood pressure in Indian adolescents and its association with various anthropometric obesity indices. Methods: The study was conducted among school students aged 11-17 years. Blood pressure was measured using digital oscillometric blood pressure monitor. Anthropometric parameters like height, weight, Neck circumference, Waist circumference and Hip circumference were assessed using standard methods. BMI, Neck height ratio and waist height ratio were calculated. Blood pressure status was evaluated on the basis of American Academy of Pediatrics guideline. SBP and/or DBP > 95th percentile in children below 13 years and 130/80 or above in adolescent 13 years or older was considered as high blood pressure. The association between BP and anthropometric parameters were examined. Results: A total 1272 students of class V-XII were participated in this study out of which 56.3% were female and 43.7% were male. 26.8% boys and 13.1% girls were under HBP category. Signicant positive correlation was observed between BP and body fat indices. Overweight and obesity were signicantly associated with risk of hypertension among boys and girls. Central obesity and upper body obesity were also associated with high blood pressure. Conclusion: Prevalence of high blood pressure in adolescent is alarming. Hypertension was signicantly associated with general obesity, abdominal obesity and upper body obesity. Thus screening of risk of high BP should be carried out in adolescents and initiate intervention to control the consequences of it.

Lipoprotein profiles of fat distribution and its association with insulin sensitivity.

Fat deposition is associated with adverse outcomes. Waist-to-hip (WHR) ratio is a simple feasible index to assess fat distribution. Lipoprotein particle composition in relation to WHR and to what extent their association is mediated by insulin sensitivity are less investigated. In 504 randomly recruited Flemish (mean age: 48.9 years; women: 51.6%), we analyzed the lipoprotein particle constitutions using nuclear magnetic resonance spectroscopy. WHR obesity described a WHR of ≥ 0.85 for women or 0.9 for men. Insulin sensitivity was evaluated by the homeostasis model assessment-estimated insulin resistance (HOMA-IR). SCORE-2 risk algorithm was applied to estimate 10-year cardiovascular risk. Statistical methods included multivariable-adjusted linear regression analysis, logistic regression analysis, and mediation analysis. The prevalence of WHR obesity was 54.6%, approximately 3 times of BMI-determined obesity (19.1%). Individuals with WHR obesity had significantly higher metabolic complications, such as hypertension (57.1%), dyslipidemia (61.8%), and insulin resistance (14.2%). WHR and WHR obesity were positively associated with total very-low-density lipoprotein (VLDL) particle concentration, remnant cholesterol, and triglycerides, but were negatively associated with VLDL particle size (P ≤ 0.027), independent of body mass index and other covariates. WHR was inversely associated with total high-density lipoprotein (HDL) particle concentration, whereas WHR obesity was inversely associated with HDL cholesterol (P ≤ 0.039). Neither WHR nor WHR obesity was associated with the concentration of total low-density lipoprotein (LDL) particles, LDL particle size, and LDL cholesterol (P ≥ 0.089). In the mediation analysis, insulin sensitivity significantly mediated the effect of WHR on total VLDL particle concentration (mediation percentage: 37.0%), remnant cholesterol (47.7%), and HDL cholesterol (41.1%). Individuals with WHR obesity were at increased cardiovascular risk, regardless of LDL cholesterol (P ≤0.028). In WHR obesity, higher total VLDL particle concent36ration and remnant cholesterol, and lower HDL cholesterol were associated with an increased cardiovascular risk (P≤ 0.002). Upper-body fat deposition was independently associated with an unfavorable lipoprotein profile, and insulin sensitivity significantly mediated this association. LDL cholesterol might underestimate lipid abnormality for people with upper-body obesity and lowering VLDL particles and remnant cholesterol might potentially reduce the residual cardiovascular risk.

Association of Neck Circumference with Body Composition and Cardiovascular Parameters in Young Healthy Adult Males

Background and Aim: Increased Neck circumference is the marker of upper body obesity and identified as an indicator of future cardiovascular disease risk (CVD). Hence, in this study, we assessed the relationship of Neck circumference (NC) with basal cardiovascular and body composition (BC) parameter in young adult males. Methods: Sixty three healthy young adult male volunteers of age between 18 to 25 years were enrolled for this study and they were divided into two groups based on neck circumference (NC). Control group (n = 32) comprises of individuals with normal neck circumference of ≤ 35.5 cm and study group (n = 31) includes individuals with increased neck circumference of ≥ 35.5 cm. The, BC parameters was assessed by Bioimpedance Analysis (BIA) method using Quadscan 4000. And the basal cardiovascular parameters such as systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR) was measured by automated sphygmomanometer and the pulse pressure (PP), mean arterial pressure (MAP) and the rate pressure product (RPP) were derived. Results: Data was expressed in Mean ± SD. The groups were compared using Independent Student’s t test. The association between NC and various study parameters were assessed by Pearson’s correlation analysis. Our study, revealed increased body fat and reduced muscle mass in individuals with increased NC. Further, we observed a positive correlation of NC with body fat (%) and negative correlation with Lean Body Mass. Cardiovascular parameters SBP, DBP, MAP and PP were elevated in subjects with increased NC. Further, positive correlation is seen with SBP, DBP, RPP and NC. Conclusion: Neck circumference is a readily measurable screening tool of upper-body adiposity and increased NC is associated with CVD risk.

초등학교 상급학생의 신체활동 수준별 비만 위험도 분석

In this cross-sectional study, we examined the relationship between objectively-measured physical activity and obesity parameters in 473 upper class students of elementary school. Low, moderate, and vigorous physical activities were monitored by wearing an accerometer for 7 consecutive days. Measured parameters of obesity included percent body fat, body mass index (BMI), waist circumference (WC), and waist-to-hip ratio (WHR). Sexual maturity was assessed with using a Tanner scale. Indepenendent t-test and Pearson correlation analysis were used to test mean differences in measured variables and to calculate correlation coefficients, respectively. Logistic regression analysis was conducted to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for obesity risk by levels of physical activity. Girls had significantly higher values in Tanner scale, percent body fat, daily physical activity than boys. By contrast, boys had significantly higher values in BMI, WC, and WHR than girls. Logistic gression analysis showed that inactive students were likely to have higher risks for obesity, abdominal obesity, and upper body obesity compared to active students. In particular, inactivie students had a significantly higher risk for BMI-based obesity even after adjustments for age, sex, and Tanner scales as compared to active students. In summary, the current findings of the study showed that physical inactivity was an independent predictor for obesity in upper class students of elementary school, implying an urgency of an exercise intervention for the prevention of obesity and its metabolic complications associated with physical inactivity.

Effects of Unripe Rubus Coreanus Extract on Upper Body Obesity: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

Ki Chan Ha, Ph.D., Hye Mi Kim, M.S., Hyang Im Baek, Ph.D., Da Young Jeong, B.S., Eun Kim, M.S., Ki Hoon Lee, M.S., Ha Rim Kim, Ph.D., Kang Beom Kwon, K.M.D., Ph.D., Sunoh Kim, Ph.D., MBA, Jung Han Lee, K.M.D., Ph.D.. J Korean Med Rehabi 2021;31:117-27. https://doi.org/10.18325/jkmr.2021.31.4.117

The Association of Upper Body Obesity with Insulin Resistance in the Newfoundland Population.

Body-fat distribution is a primary risk factor for insulin resistance and cardiovascular disease. Visceral fat explains only a portion of this risk. The link between upper-body fat and insulin resistance is uncertain. Furthermore, upper-body fat is not clearly defined. Dual-energy X-ray absorptiometry (DXA) can accurately quantify body fat. In this study, we explored the relationship between non-visceral upper-body adiposity and insulin resistance and other markers of metabolic syndrome. Fat proportions in the upper body, leg, and visceral regions were quantified by using DXA in 2547 adult Newfoundlanders aged 19 and older. Adjusting for remaining fat regions, we performed partial correlation analysis for each body region and insulin resistance defined by the Homeostatic Model of Assessment (HOMA). Similarly, partial correlation analysis was also performed between each fat region and other markers of metabolic syndrome, including high-density lipoprotein cholesterol (HDL), triglycerides (TG), body mass index (BMI), and blood pressure. Major confounding factors, including age, caloric intake, and physical activity, were statistically controlled by using partial correlation analysis. Interactions between sex, menopausal status, and medication status were also tested. Arm adiposity was correlated with HOMA-IR (R = 0.132, p < 0.001) and HOMA-β (R = 0.134, p < 0.001). Visceral adiposity was correlated with HOMA-IR (R = 0.230, p < 0.001) and HOMA-β (R = 0.160, p < 0.001). No significant correlation between non-visceral trunk adiposity and insulin resistance was found. Non-visceral trunk adiposity was negatively correlated with HDL in men (R = −0.110, p < 0.001) and women (R = −0.117, p < 0.001). Non-visceral trunk adiposity was correlated with TG (total: R = 0.079, p < 0.001; men: R = 0.105, p = 0.012; women: R = 0.078, p = 0.001). In menopausal women, leg adiposity was negatively correlated with HOMA-IR (R = −0.196, p < 0.001) and HOMA-β (R = −0.101, p = 0.012). Upper-body adiposity in the arms is an independent contributor to insulin resistance. Upper-body adiposity in the non-visceral trunk region is an independent contributor to metabolic syndrome. Leg adiposity is protective against metabolic syndrome in women.

No Association between Neck Circumference and Free Triiodothyronine in Euthyroid Men.

Objective Neck circumference (NC) is a simple anthropometric index for the assessment of upper body obesity. Thyroid hormones are closely related to obesity, body fat distribution indicators, and metabolic parameters. However, there are currently no reports on the association between NC and thyroid hormones in the Chinese population. This study aimed to explore the relationship between NC and thyroid hormones in men with normal thyroid function. Methods A total of 737 euthyroid men from Shanghai communities were enrolled. Anthropometric parameters, including NC and waist circumference (WC), were measured. Serum thyroid hormones were measured by electrochemical luminescence immunoassay. Results NC, WC, and body mass index (BMI) were significantly positively correlated with serum free triiodothyronine (FT3) (all P < 0.05). FT3 levels all presented significant upward trends with the increase in NC, WC, or BMI quartiles (all P for trend < 0.05), whereas there were no significant correlations between the three obesity indices and free thyroxine or thyroid-stimulating hormone (both P > 0.05). After adjustment for metabolic confounding factors such as age, blood pressure, blood glucose, lipid profiles, and CRP in multiple linear regression analysis, the correlation between FT3 and NC disappeared (standardized β = −0.015, P=0.705), and FT3 remained significantly associated with WC (standardized β = 0.103, P=0.012) and BMI (standardized β = 0.082, P=0.047). Conclusions In euthyroid men from Shanghai communities, there was no independent correlation between serum FT3 levels and NC. The trial was registered with ChiCTR1900024011.

Prevalence and Clinical Characteristics of Nonalcoholic Liver Disease in Type 2 Diabetes Mellitus Patients: A Cross-sectional Study

Introduction: A refined diagnostic and classification strategy incorporating phenotypic characteristics of patients with Type 2 Diabetes Mellitus (T2DM) along with their blood glucose profile, lipid levels and evidence of Nonalcoholic Fatty Liver Disease (NAFLD) will help in identifying high risk population. Aim: To determine the prevalence and assess the clinical characteristics of NAFLD in T2DM patients from August 2016 to February 2017. Materials and Methods: This cross-sectional analysis was conducted on 100 T2DM patients with no history of alcohol intake, at the time of their screening. Physical examination and anthropometric measurements such as Body Mass Index (BMI) and Waist to Hip Ratio (WHR) were calculated. Fasting Blood Glucose (FBG), Post-Prandial Blood Glucose (PPBG), glycated haemoglobin (HbA1c), serum bilirubin, liver enzymes, lipid profile and ultrasound of the abdomen to diagnose NAFLD were done. Statistical analysis was carried out using student’s t-test and Statistical Package for the Social Sciences (SPSS) Version 19. Results: The prevalence of NAFLD in T2DM patients was 52%. The mean age was 52.27±1.82 years, with 40% males in the study cohort. There was a significant statistical correlation between the higher BMI (p&lt;0.001), higher WHR (p=0.046), prevalence of upper body obesity (p&lt;0.001) and the presence of NAFLD. The glycaemic control was poorer in patients with NAFLD with higher FBG (p=0.0027), PPBG (p=0.0027) and HbA1c p&lt;0.001) than the non-NAFLD group. The serum cholesterol, triglycerides, Serum Glutamic Pyruvic Transaminase (SGPT), Serum Glutamic Oxaloacetic Transaminase (SGOT) were significantly higher in the NAFLD group. Duration of diabetes was not significantly different among the groups. Conclusion: The incidence of NAFLD is common in T2DM patients with poor glycaemic control, dyslipidaemia, and obesity being associated factors. Duration of diabetes is not a significant predictor of NAFLD.

Effects of Niacin on Intramyocellular Fatty Acid Trafficking in Upper Body Obesity and Type 2 Diabetes Mellitus

Effects of Niacin on Intramyocellular Fatty Acid Trafficking in Upper Body Obesity and Type 2 Diabetes Mellitus

Gambaran Aktivitas Fisik Pada Individu Obesitas Di Wilayah Kerja Puskesmas Sidorejo Kidul Salatiga

Background: Obesity is one of the health problems related to the prevalence of cardiometabolic disease. WHO states that obesity is a complex, serious problem experienced by all age groups, ranging from children, adults to the elderly. Obesity must be treated immediately because it has the potential to become a health problem (1). In obese patients who have a Body Mass Index (BMI)&gt; 30 kg / m2 will increase the risk of Coronary Heart Disease (CHD), both men and women. The American Heart Association (AHA) classifies obesity as a risk factor for coronary heart disease. Someone with central Obesity (upper body obesity) will be easily exposed to the risk of heart disease and other metabolic diseases known as metabolic syndrome compared with ginoid obesity (lower body obesity) is very small will be the risk of metabolic disease and coronary heart disease.&#x0D; Objective: The purpose of the study to determine the description of community behavior seen from the point of view of physical activity that became one of the causes of obesity in Salatiga City.&#x0D; Method: This research method is descriptive quantitative with observation approach. The population in this study is the people who have checked themselves to the Puskesmas Sidorejo Kidul, each from the scope of work area of Sidorejo Kidul Puskesmas. The inclusion criteria applied were: 1) people living in the working area of pusidmas sidorejo kidul, 2) aged 40 years and over, 3) IMT more than 27,0. Variables studied in this research is the intensity of physical activity and BMI. The instrument used to measure the intensity of physical activity is the Global Physical Activity Questionnaire (GPAQ). The interview was conducted to identify the understanding of the community in the work area of Sidorejo Kidul Public Health Center towards obesity and physical activity.&#x0D; Result: After all the data collected the results of the research were carried out by analyzing the data by data reduction, data presentation, drawing conclusions, and verification. Setelah semua data terkumpul hasil penelitian dilakukan dengan cara analisa data dilakukan dengan reduksi data, penyajian data, penarikan kesimpulan, dan verifikasi.&#x0D; Conclusion: The physical activity of the elderly in the working area of the Puskesmas Sidorejo in the city of Salatiga, based on the Global Physical Activity Questionnaire (GPAQ) calculation is included in the medium category of 50% with physical activities generally carried out by housewives such as sweeping, mopping, cooking, and wash. As many as 15% of the elderly are in the category of low physical activity and the rest are included in the high category of 35%.

The association of anthropometric indices and cardiac function in healthy adults.

BACKGROUNDObesity is a major risk factor for many diseases including cardiovascular diseases (CVDs). Recently, it has been shown that upper body obesity can predict CVDs per se. In this study, we aimed to determine the association between indicators of upper body obesity and echocardiographic indices.METHODSIn this cross-sectional study conducted in Hajar Hospital in Shahrekord, Iran, from March to August 2014, 80 healthy adults were included. Participants’ neck circumference (NC), waist circumference (WC), body mass index (BMI), and blood pressure were measured. Echocardiography was performed for all participants, and echocardiographic indices such as early (E’) and late (A') diastolic tissue velocity, early (E) and late (A) transmitral flow velocity, E/E’ ratio, pulmonary arterial pressure (PAP), and left atrial volume (LAV) were recorded. The association between these indices were investigated using bivariate Pearson correlation coefficient.RESULTSFor men, NC had a significant correlation with LAV, systolic blood pressure (SBP), diastolic blood pressure (DBP), PAP, and A', and a negative correlation with E′. WC had a significant correlation with LAV, SBP, and PAP, and a negative correlation with E′, while BMI had a significant correlation with LAV, PAP, SBP, A, and A’. For women, NC had a significant positive correlation with LAV, A, ejection fraction (EF), SBP, PAP, and A’, and a negative correlation with E′ and E/E′. WC had a significant positive correlation with LAV, DBP, PAP, A, A’, and a negative correlation with E′, while BMI had a significant correlation with LAV, EF, SBP, PAP, E’, A, and A’.CONCLUSIONThe positive correlation of NC with SBP, A, and A', as well as NC, WC, and BMI with LAV and PAP in both sexes, and the negative correlation of NC with E′ show the importance of these measures in estimation of metabolic and cardiovascular risk factors.

Building up the foundation for the elderly apparel industry through the study on the body shapes of elderly obese males

The purpose of this study is to promote the elderly apparel industry for the increasing numbers of elderly obese male population. In the study, a total number of 249 males between the ages of 60 to 85 were studied to analyze their body types and differences. The group had a Rohrer Index of 1.6 or higher and BMI of 25 or higher. The noticeable physical differences in the group were shorter waist front length, bigger waist and hip circumferences with increasing age and slimmer limbs that are associated with the natural aging process with or without obesity. The obese body types have been classified in the following 3 different categories. Type 1 is the group that has lower body obesity with broad shoulders and relatively slimmer abdomen than a heavy bottom. A total number of 84 people belonged to the type 1 obesity category which makes up 33.8% of the total. Type 2 is the group that has upper body obesity with especially large abdominal obesity. A total number of 76 people, 30.5% of the total, were classified as type 2. Type 3 is the group that has whole body obesity with balanced obesity in the whole body. A total number of 89 people, 35.7% of the total, made up type 3.

Obstructive sleep apnea in non-dialyzed chronic kidney disease patients: Association with body adiposity and sarcopenia.

Obstructive sleep apnea (OSA) is a risk factor for cardiovascular disease (CVD), the main cause of mortality in chronic kidney disease (CKD). Although the prevalence of OSA in patients with CKD has not been established, a few studies suggest that it is higher than in the general population, potentially increasing the risk for CVD. Obesity increases the risk, whereas sarcopenia has been suggested as a consequence of OSA in the general population. To our knowledge, these associations have not been adequately evaluated in patients with CKD. The aim of this study was to evaluate OSA frequency and its association with total and upper body adiposity and sarcopenia in non-dialyzed CKD patients. This cross-sectional study included 73 patients with stages 3b-4 CKD (42 men, 62.9 ± 1.1 y of age). Glomerular filtration rate was estimated by the CKD-Epidemiology Collaboration equation. Patients were assessed for OSA by Watch-PAT200 (apnea-hypopnea index ≥5 events hourly; Itamar Medical), total body adiposity by dual-energy x-ray absorptiometry (DXA) and body mass index (BMI), upper body adiposity by anthropometric parameters and by trunk and visceral fat by DXA, and sarcopenia. OSA frequency was 67% (N = 49). Both total and upper body adiposity were associated with the presence and severity of OSA. In non-obese patients (BMI <30 kg/m2), upper body obesity increased significantly the frequency of OSA. OSA association with sarcopenia was blunted when BMI was included in regression model. Results from the present study suggest that in non-dialyzed CKD patients OSA is very common and associated with total and upper body obesity, but not with sarcopenia.

Sleep apnea: An overlooked cause of lipotoxicity?

Obstructive sleep apnea (OSA) is a common sleep disorder associated with diabetes and cardiovascular disease. However, the mechanisms by which OSA causes cardiometabolic dysfunction are not fully elucidated. OSA increases plasma free fatty acids (FFA) during sleep, reflecting excessive adipose tissue lipolysis. In animal studies, intermittent hypoxia simulating OSA also increases FFA, and the increase is attenuated by beta-adrenergic blockade. In other contexts, excessive plasma FFA can lead to ectopic fat accumulation, insulin resistance, vascular dysfunction, and dyslipidemia. Herein, we propose that OSA is a cause of excessive adipose tissue lipolysis contributing towards systemic “lipotoxicity”. Since visceral and upper-body obesity contributes to OSA pathogenesis, OSA-induced lipolysis may further aggravate the consequences of this metabolically harmful state. If this hypothesis is correct, then OSA may represent a reversible risk factor for cardio-metabolic dysfunction, and this risk might be mitigated by preventing OSA-induced lipolysis during sleep.