Journal of Obesity http://www.hindawi.com The latest articles from Hindawi Publishing Corporation © 2013 , Hindawi Publishing Corporation . All rights reserved. Improving Prediction Algorithms for Cardiometabolic Risk in Children and Adolescents Wed, 19 Jun 2013 18:41:30 +0000 http://www.hindawi.com/journals/jobes/2013/684782/ Clustering of abnormal metabolic traits, the Metabolic Syndrome (MetS), has been associated with an increased cardiovascular disease (CVD) risk. Several algorithms including the MetS and other risk factors exist for adults to predict the risk of CVD. We discuss the use of MetS scores and algorithms in an attempt to predict later cardiometabolic risk in children and adolescents and offer suggestions for developing clinically useful algorithms in this population. There is little consensus in how to define the MetS or to predict future CVD risk using the MetS and other risk factors in children and adolescents. The MetS scores and prediction algorithms we identified had usually not been tested against a clinical outcome, such as CVD, and they had not been validated in other populations. This makes comparisons of algorithms impossible. We suggest a simple two-step approach for predicting the risk of adult cardiometabolic disease in overweight children. It may have advantages in terms of cost-effectiveness since it uses simple measurements in the first step and more complex, costly measurements in the second step. It also takes advantage of the continuous distributions of the metabolic features. We suggest piloting and validating any new algorithms. Ulla Sovio, Aine Skow, Catherine Falconer, Min Hae Park, Russell M. Viner, and Sanjay Kinra Copyright © 2013 Ulla Sovio et al. All rights reserved. Prevalence of Overweight, Obesity, and Thinness in Cameroon Urban Children and Adolescents Wed, 19 Jun 2013 18:25:07 +0000 http://www.hindawi.com/journals/jobes/2013/737592/ Objective. This study examined the prevalence of thinness, overweight, and obesity in Cameroon children ranging from 8 to 15 years old using several published references as evaluation tools. Methods. A stratified sample was used with eleven schools randomly selected, and data from 2689 children (52.2% girls) ranging from 8 to 15 years were analyzed. Weight and height were recorded and BMI was calculated. BMI cutoffs used to define nutritional status grades included two international and three national published indices which were compared to our database-derived cutoffs. Results. A prevalence of 9.5% thinness and 12.4% overweight including 1.9% obesity according to international references was detected. A 2.2% low-weight-for-age, 5.7% low-height-for-age, and 5.2% low-weight-for-height were identified. Overall, there were significant differences using calculations based on our database versus published reference values and between boys versus girls. Conclusions. This study demonstrates that prevalence of thinness, overweight, and obesity is similar to that of other leading-emerging countries reported within the last decade, yet it is still lower than prevalence in developed countries. Ethnic background and social environment have impact on prevalences, highlighting the importance of evaluating the Cameroon population based on locally derived database. Ponce Cedric Fouejeu Wamba, Julius Enyong Oben, and Katherine Cianflone Copyright © 2013 Ponce Cedric Fouejeu Wamba et al. All rights reserved. Obesity and Preference-Weighted Quality of Life of Ethnically Diverse Middle School Children: The HEALTHY Study Wed, 19 Jun 2013 11:08:58 +0000 http://www.hindawi.com/journals/jobes/2013/206074/ To date, studies examining the relation between body mass index percentile (BMI%) categories and health-related quality of life (QOL) measurements have not reported preference-weighted scores among ethnically diverse children. We report the associations between BMI% categories and preference-weighted scores among a large cohort of ethnically diverse sixth grade children who participated in the HEALTHY school-based type 2 diabetes risk factor prevention study. Health Utility Index 2 (HUI2) and Health Utility Index 3 (HUI3) and the feeling thermometer (FT) were the preference-weighted QOL instruments used to measure student’s preference scores. Of 6358 consented students, 4979 (78.3%) had complete QOL, height, weight, and covariate data. Mean (SD) preference scores were 0.846 (0.160), 0.796 (0.237), and 0.806 (0.161) for the HUI2, HUI3, and FT, respectively. After adjusting for age, sex, blood glucose and insulin, Tanner stage, race/ethnicity, family history of diabetes, and educational attainment, children with severe obesity (>99%) had significantly lower preference scores compared to normal weight on all three instruments (HUI2 ; HUI3 ; and FT ). Obese and severe obese categories were significantly associated with lower HUI2 functional ratings in the mobility domain and with lower HUI3 functional ratings in the speech domain. R. P. Treviño, T. H. Pham, and S. L. Edelstein Copyright © 2013 R. P. Treviño et al. All rights reserved. Body Composition: Assessment, Regulation, and Emerging Techniques Thu, 13 Jun 2013 13:11:47 +0000 http://www.hindawi.com/journals/jobes/2013/125068/ Analiza M. Silva, David A. Fields, Diana Thomas, and Boyd J. Strauss Copyright © 2013 Analiza M. Silva et al. All rights reserved. A Prior History of Substance Abuse in Veterans Undergoing Bariatric Surgery Wed, 12 Jun 2013 12:47:16 +0000 http://www.hindawi.com/journals/jobes/2013/740312/ Background. The rates of obesity and substance abuse are high among US veterans. Objective. To examine weight loss and substance abuse rates following bariatric surgery in veterans with a history of substance abuse (SA). Methods. A prospective database of consecutive bariatric operations was reviewed. Data for SA patients were compared to patients without a substance abuse history (NA). Behavioral medicine staff followed patients throughout the pre- and postoperative courses. Results. Of 205 bariatric surgery patients, there were 74 (36.1%) SA patients. The mean preoperative body mass index (BMI) was 46.2 ± 8.1 kg/m2, and percent excess weight loss at 12 months was 71.8%, 58.0%, and 33.5% for Roux-en-Y gastric bypass, laparoscopic sleeve gastrectomy, and laparoscopic gastric banding, respectively, not significantly different than the NA group (, 0.75, 0.96). Postoperative substance abuse in SA and NA patients was 8.1% and 1.5%, respectively (). Conclusion. A prior history of substance abuse is common in veterans undergoing bariatric surgery; weight loss results are comparable to the general veteran bariatric cohort. Rates of substance abuse are low postoperatively, but higher in patients without a prior history of substance abuse. Close multidisciplinary followup throughout the postoperative course is likely to be integral to the patient’s success. Maureen Tedesco, William Q. Hua, Jessica A. Lohnberg, Nina Bellatorre, and Dan Eisenberg Copyright © 2013 Maureen Tedesco et al. All rights reserved. Methylation and Expression of Immune and Inflammatory Genes in the Offspring of Bariatric Bypass Surgery Patients Tue, 11 Jun 2013 11:31:09 +0000 http://www.hindawi.com/journals/jobes/2013/492170/ Background. Maternal obesity, excess weight gain and overnutrition during pregnancy increase risks of obesity, type 2 diabetes mellitus, and cardiovascular disease in the offspring. Maternal biliopancreatic diversion is an effective treatment for severe obesity and is beneficial for offspring born after maternal surgery (AMS). These offspring exhibit lower severe obesity prevalence and improved cardiometabolic risk factors including inflammatory marker compared to siblings born before maternal surgery (BMS). Objective. To assess relationships between maternal bariatric surgery and the methylation/expression of genes involved in the immune and inflammatory pathways. Methods. A differential gene methylation analysis was conducted in a sibling cohort of 25 BMS and 25 AMS offspring from 20 mothers. Following differential gene expression analysis (23 BMS and 23 AMS), pathway analysis was conducted. Correlations between gene methylation/expression and circulating inflammatory markers were computed. Results. Five immune and inflammatory pathways with significant overrepresentation of both differential gene methylation and expression were identified. In the IL-8 pathway, gene methylation correlated with both gene expression and plasma C-reactive protein levels. Conclusion. These results suggest that improvements in cardiometabolic risk markers in AMS compared to BMS offspring may be mediated through differential methylation of genes involved in immune and inflammatory pathways. Frédéric Guénard, André Tchernof, Yves Deshaies, Katherine Cianflone, John G. Kral, Picard Marceau, and Marie-Claude Vohl Copyright © 2013 Frédéric Guénard et al. All rights reserved. Examining Social Influence on Participation and Outcomes among a Network of Behavioral Weight-Loss Intervention Enrollees Thu, 06 Jun 2013 14:28:50 +0000 http://www.hindawi.com/journals/jobes/2013/480630/ Research suggests that social networks, social support, and social influence are associated with weight trajectories among treatment- and non-treatment-seeking individuals. This study examined the impact of having a social contact who participated in the same group behavioral weight-control intervention in the absence of specific social support training on women engaged in a weight-loss program. Participants (; 100% female; 54% black; mean age: years; mean BMI: ) were grouped based upon whether or not they reported a social contact enrolled previously/concurrently in our behavioral weight-control studies. Primary outcomes were 6-month weight change and treatment adherence (session attendance and self-monitoring). Half of the participants (53%) indicated that they had a social contact; black women were more likely to report a social contact than white women (67.3% versus 39.5%; ). Among participants with a social contact, 67% reported at least one contact as instrumental in the decision to enroll in the program. Those with a contact lost more weight (5.9 versus 3.7 kg; ), attended more group sessions (74% versus 54%; ), and submitted more self-monitoring journals (69% versus 54%; ) than those without a contact. Participants' weight change was inversely associated with social contacts' weight change (). There was no association between participant and contact’s group attendance or self-monitoring. Social networks may be a promising vehicle for recruiting and engaging women in a behavioral weight-loss program, particularly black women. The role of a natural social contact deserves further investigation. T. L. Carson, K. E. Eddings, R. A. Krukowski, S. J. Love, J. R. Harvey-Berino, and D. S. West Copyright © 2013 T. L. Carson et al. All rights reserved. A PRISMA-Driven Systematic Review of Predictive Equations for Assessing Fat and Fat-Free Mass in Healthy Children and Adolescents Using Multicomponent Molecular Models as the Reference Method Thu, 06 Jun 2013 12:34:33 +0000 http://www.hindawi.com/journals/jobes/2013/148696/ Simple methods to assess both fat (FM) and fat-free mass (FFM) are required in paediatric populations. Several bioelectrical impedance instruments (BIAs) and anthropometric equations have been developed using different criterion methods (multicomponent models) for assessing FM and FFM. Through childhood, FFM density increases while FFM hydration decreases until reaching adult values. Therefore, multicomponent models should be used as the gold standard method for developing simple techniques because two-compartment models (2C model) rely on the assumed adult values of FFM density and hydration (1.1 g/cm3 and 73.2%, respectively). This study will review BIA and/or anthropometric-based equations for assessing body composition in paediatric populations. We reviewed English language articles from MEDLINE (1985–2012) with the selection of predictive equations developed for assessing FM and FFM using three-compartment (3C) and 4C models as criterion. Search terms included children, adolescent, childhood, adolescence, 4C model, 3C model, multicomponent model, equation, prediction, DXA, BIA, resistance, anthropometry, skinfold, FM, and FFM. A total of 14 studies (33 equations) were selected with the majority developed using DXA as the criterion method with a limited number of studies providing cross-validation results. Overall, the selected equations are useful for epidemiological studies, but some concerns still arise on an individual basis. Analiza M. Silva, David A. Fields, and Luís B. Sardinha Copyright © 2013 Analiza M. Silva et al. All rights reserved. Individual-, Family-, Community-, and Policy-Level Impact of a School-Based Cardiovascular Risk Detection Screening Program for Children in Underserved, Rural Areas: The CARDIAC Project Wed, 05 Jun 2013 13:30:17 +0000 http://www.hindawi.com/journals/jobes/2013/732579/ The Coronary Artery Risk Detection In Appalachian Communities (CARDIAC) Project has screened more than 80,000 children (10–12 years) for cardiovascular and diabetes risk factors over the past 15 years. Simultaneous referral and intervention efforts have also contributed to the overall program impact. In this study, we examined evidence of programmatic impact in the past decade at the individual, family, community, and policy levels from child screening outcomes, referral rates, participation in subsequent services, and policies that embed the activities of the project as a significant element. Within this period of time, fifth-grade overweight and obesity rates were maintained at a time when rates elsewhere increased. 107 children were referred for additional screening and treatment for probable familial hypercholesterolemia (FH); 82 family members were subsequently screened in family-based screening efforts. 58 grants were distributed throughout the state for community-appropriate obesity intervention. A state wellness policy embedded CARDIAC as the method of assessment and national child cholesterol screening guidelines were impacted by CARDIAC findings. The sustainability and successful impact of this school-based program within a largely underserved, rural Appalachian state are also discussed. Lesley Cottrell, Collin John, Emily Murphy, Christa L. Lilly, Susan K. Ritchie, Eloise Elliott, Valerie Minor, and William A. Neal Copyright © 2013 Lesley Cottrell et al. All rights reserved. Obesity-Related Metabolomic Analysis of Human Subjects in Black Soybean Peptide Intervention Study by Ultraperformance Liquid Chromatography and Quadrupole-Time-of-Flight Mass Spectrometry Tue, 04 Jun 2013 08:25:45 +0000 http://www.hindawi.com/journals/jobes/2013/874981/ The present study aimed to identify key metabolites related to weight reduction in humans by studying the metabolic profiles of sera obtained from 34 participants who underwent dietary intervention with black soybean peptides (BSP) for 12 weeks. This research is a sequel to our previous work in which the effects of BSP on BMI and blood composition of lipid were investigated. Sera of the study were subjected to ultra performance liquid chromatography and quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS), and the data were analyzed using partial least-squares discriminate analysis (PLS-DA) score plots. Body mass index and percent body fat of the test group were reduced. Levels of betaine, benzoic acid, pyroglutamic acid, pipecolic acid, N-phenylacetamide, uric acid, l-aspartyl-l-phenylalanine, and lysophosphatidyl cholines (lysoPCs) (C18:1, C18:2, C20:1, and C20:4) showed significant increases. Levels of l-proline, valine, l-leucine/isoleucine, hypoxanthine, glutamine, l-methionine, phenylpyruvic acid, several carnitine derivatives, and lysoPCs (C14:0, PC16:0, C15:0, C16:0, C17:1, C18:0, and C22:0) were significantly decreased. In particular, lysoPC 16:0 with a VIP value of 12.02 is esteemed to be the most important metabolite for evaluating the differences between the 2 serum samples. Our result confirmed weight-lowering effects of BSP, accompanied by favorable changes in metabolites in the subjects’ blood. Therefore, this research enables us to better understand obesity and increases the predictability of the obesity-related risk by studying metabolites present in the blood. Min Jung Kim, Hye Jeong Yang, Jin Hee Kim, Chang-Won Ahn, Jong Ho Lee, Kang Sung Kim, and Dae Young Kwon Copyright © 2013 Min Jung Kim et al. All rights reserved. Interdisciplinary Aspects of Childhood Obesity and Physical Fitness Mon, 03 Jun 2013 10:00:47 +0000 http://www.hindawi.com/journals/jobes/2013/828463/ Jana Pařízková, Françoise Rovillé-Sausse, and Denes Molnár Copyright © 2013 Jana Pařízková et al. All rights reserved. Adults with Greater Weight Satisfaction Report More Positive Health Behaviors and Have Better Health Status Regardless of BMI Mon, 03 Jun 2013 08:00:13 +0000 http://www.hindawi.com/journals/jobes/2013/291371/ Background. Prior studies suggest that weight satisfaction may preclude changes in behavior that lead to healthier weight among individuals who are overweight or obese. Objective. To gain a better understanding of complex relationships between weight satisfaction, weight-related health behaviors, and health outcomes. Design. Cross-sectional analysis of data from the Aerobics Center Longitudinal Study (ACLS). Participants. Large mixed-gender cohort of primarily white, middle-to-upper socioeconomic status (SES) adults with baseline examination between 1987 and 2002 (). Main Outcome Variables. Weight satisfaction, weight-related health behaviors, chronic health conditions, and clinical health indicators. Statistical Analyses Performed. Chi-square test, t-tests, and linear and multivariate logistic regression. Results. Compared to men, women were more likely to be dieting (32% women; 18% men) and had higher weight dissatisfaction. Men and women with greater weight dissatisfaction reported more dieting, yo-yo dieting, and snacking and consuming fewer meals, being less active, and having to eat either more or less than desired to maintain weight regardless of weight status. Those who were overweight or obese and dissatisfied with their weight had the poorest health. Conclusion. Greater satisfaction with one’s weight was associated with positive health behaviors and health outcomes in both men and women and across weight status groups. Christine E. Blake, James R. Hébert, Duck-chul Lee, Swann A. Adams, Susan E. Steck, Xuemei Sui, Jennifer L. Kuk, Meghan Baruth, and Steven N. Blair Copyright © 2013 Christine E. Blake et al. All rights reserved. Are Nutrition Knowledge, Attitudes, and Beliefs Associated with Obesity among Low-Income Hispanic and African American Women Caretakers? Wed, 29 May 2013 18:21:54 +0000 http://www.hindawi.com/journals/jobes/2013/123901/ The purposes of this descriptive study were to (1) describe nutrition knowledge, attitudes, beliefs (KAB), and self-efficacy among low-income African American and Hispanic women; (2) identify the associations these variables have on diet quality and weight status; (3) identify barriers to healthy eating. Data from three separate studies were combined and analyzed. The total sample included African Americans () and Hispanics (). Descriptive statistics and bivariate analyses were used to identify associations between KAB and body mass index (BMI) and diet quality. The majority of African Americans had good knowledge in nutrition while Hispanics had fair knowledge. Attitudes toward eating a healthy diet were significantly associated with high fiber intake among African Americans and low fat consumption among Hispanics. A computed KAB score showed no significant relation to individuals' weight status or diet quality. However, attitudes and beliefs about healthy foods strongly correlated with participants' weight or diet consumption among Hispanics. The most common barrier to consuming a healthy diet reported by both groups was the cost of healthy foods. It is therefore recommended to address these variables when addressing obesity and poor dietary intake among low-income minority groups. Irene Acheampong and Lauren Haldeman Copyright © 2013 Irene Acheampong and Lauren Haldeman. All rights reserved. International Differences in the Links between Obesity and Physiological Dysregulation: The United States, England, and Taiwan Tue, 28 May 2013 17:37:58 +0000 http://www.hindawi.com/journals/jobes/2013/618056/ Excess weight has generally been associated with adverse health outcomes; however, the link between overweight and health outcomes may vary with socioeconomic, cultural, and epidemiological conditions. We examine associations of weight with indicators of biological risk in three nationally representative populations: the US National Health and Nutrition Examination Survey, the English Longitudinal Study of Ageing, and the Social Environment and Biomarkers of Aging Study in Taiwan. Indicators of biological risk were compared for obese (defined using body mass index (BMI) and waist circumference) and normal weight individuals aged 54+. Generally, obesity in England was associated with elevated risk for more markers examined; obese Americans also had elevated risks except that they did not have elevated blood pressure (BP). Including waist circumference in our consideration of BMI indicated different links between obesity and waist size across countries; we found higher physiological dysregulation among those with high waist but normal BMI compared to those with normal waist and normal BMI. Americans had the highest levels of biological risk in all weight/waist groups. Cross-country variation in biological risk associated with obesity may reflect differences in health behaviors, lifestyle, medication use, and culture. Sarinnapha Vasunilashorn, Jung Ki Kim, and Eileen M. Crimmins Copyright © 2013 Sarinnapha Vasunilashorn et al. All rights reserved. Effects of Adiposity and Prader-Willi Syndrome on Postexercise Heart Rate Recovery Wed, 22 May 2013 12:57:00 +0000 http://www.hindawi.com/journals/jobes/2013/384167/ Heart rate recovery (HRR) is an indicator of all-cause mortality in children and adults. We aimed to determine the effect of adiposity and Prader-Willi Syndrome (PWS), a congenital form of obesity, on HRR. Sixteen children of normal weight (NW = body fat % ≤85th percentile, 9.4 ± 1.1 y), 18 children with obesity (OB = body fat % >95th percentile, 9.3 ± 1.1 y), and 11 PWS youth (regardless of body fat %; 11.4 ± 2.5 y) completed peak and submaximal bike tests on separate visits. HRR was recorded one minute following peak and submaximal exercises. All groups displayed similar HRR from peak exercise, while NW (54 ± 16 beats) and OB (50 ± 12 beats) exhibited a significantly faster HRR from submaximal exercise than PWS (37 ± 14 beats). These data suggest that excess adiposity does not influence HRR in children, but other factors such as low cardiovascular fitness and/or autonomic dysfunction might be more influential. Diobel M. Castner, Daniela A. Rubin, Daniel A. Judelson, and Andrea M. Haqq Copyright © 2013 Diobel M. Castner et al. All rights reserved. Measuring Body Composition in Individuals with Intellectual Disability: A Scoping Review Wed, 15 May 2013 16:35:37 +0000 http://www.hindawi.com/journals/jobes/2013/628428/ Background. Research shows obesity to be more prevalent amongst individuals with intellectual disability (ID) making correct measurement of body composition crucial. This study reviewed the validity and reliability of methods used for assessing body composition in individuals with ID. Methods. Authors conducted electronic searches through PubMed (1990 to present) and PsycINFO (1990 to present) and assessed relevant articles independently based on scoping review guidelines. Reviewers included primary research related to the validity and reliability of body composition measures on individuals with ID. Results. Searches identified six articles assessing body composition methods used on individuals with ID including body mass index (BMI), skinfold thickness, bioelectrical impedance analysis (BIA), waist circumference, tibia length, and anthropometric girth measurements. BMI and waist circumference appear suitable measures but skinfold thickness measurements may not be advisable due to participants' noncompliance resulting in a lack of precision and inaccurate results. Conclusions. The current literature contains too few well-conducted studies to determine the precision and validity of body composition measures on individuals with ID. There may be a need to devise further regression equations that apply to individuals with specific types of ID in order to increase the reliability and validity of body composition measurements. Amanda Faith Casey Copyright © 2013 Amanda Faith Casey. All rights reserved. The Associations of Parenting Factors with Adolescent Body Mass Index in an Underserved Population Wed, 15 May 2013 09:59:38 +0000 http://www.hindawi.com/journals/jobes/2013/715618/ Background. The current study examined parental factors related to risk of adolescent obesity within the context of a family systems framework. Methods. Seventy predominantly African American, low-income caregiver-adolescent dyads participated in the study. Validated measures of parental perceived child risk for development of type 2 diabetes mellitus, parental limit setting for sedentary behavior, and parental nurturance were evaluated as predictors of adolescent body mass index. Results. In this cross-sectional study, multiple linear regression demonstrated that parents of adolescents with higher zBMI reported worrying more about their child's risk of developing type 2 diabetes mellitus. Parent limit setting was also a significant predictor of adolescent zBMI. Contrary to expectations, higher levels of nurturance were associated with higher adolescent zBMI. Post hoc analyses revealed a trend towards a significant interaction between nurturance and limit setting, such that high levels of both parental nurturance and limit setting were associated with lower adolescent zBMI. Conclusions. Current findings suggest the importance of authoritative parenting and monitoring of adolescent health behaviors in the treatment of obesity. Elizabeth M. Schneider, Dawn K. Wilson, Heather Kitzman-Ulrich, Sara M. St. George, and Kassandra A. Alia Copyright © 2013 Elizabeth M. Schneider et al. All rights reserved. Policy Challenges in the Fight against Childhood Obesity: Low Adherence in San Diego Area Schools to the California Education Code Regulating Physical Education Mon, 13 May 2013 14:35:00 +0000 http://www.hindawi.com/journals/jobes/2013/483017/ Objective. Assess the adherence to the Physical Education (PE) requirements per California Education Code in San Diego area schools. Methods. Surveys were administered anonymously to children and adolescents capable of physical activity, visiting a specialty clinic at Rady Children's Hospital San Diego. The main questions asked were their gender, grade, PE classes per week, and time spent doing PE. Results. 324 surveys were filled, with 36 charter-school students not having to abide by state code excluded. We report on 288 students (59% females), mostly Hispanic (43%) or Caucasian (34%). In grades 1–6, 66.7% reported under the 200 min per 10 school days required by the PE code. Only 20.7% had daily PE. Average PE days/week was 2.6. In grades 7–12, 42.2% had reported under the 400 min per 10 school days required. Daily PE was noted in 47.8%. Average PE days/week was 3.4. Almost 17% had no PE, more so in the final two grades of high school (45.7%). Conclusions. There is low adherence to the California Physical Education mandate in the San Diego area, contributing to poor fitness and obesity. Lack of adequate PE is most evident in grades 1–6 and grades 11-12. Better resources, awareness, and enforcement are crucial. G. Consiglieri, L. Leon-Chi, and R. S. Newfield Copyright © 2013 G. Consiglieri et al. All rights reserved. Sociocultural and Socioeconomic Influences on Type 2 Diabetes Risk in Overweight/Obese African-American and Latino-American Children and Adolescents Mon, 13 May 2013 08:27:35 +0000 http://www.hindawi.com/journals/jobes/2013/512914/ Purpose. It is unclear whether sociocultural and socioeconomic factors are directly linked to type 2 diabetes risk in overweight/obese ethnic minority children and adolescents. This study examines the relationships between sociocultural orientation, household social position, and type 2 diabetes risk in overweight/obese African-American () and Latino-American () children and adolescents. Methods. Sociocultural orientation was assessed using the Acculturation, Habits, and Interests Multicultural Scale for Adolescents (AHIMSA) questionnaire. Household social position was calculated using the Hollingshead Two-Factor Index of Social Position. Insulin sensitivity (SI), acute insulin response (AIRG) and disposition index (DI) were derived from a frequently sampled intravenous glucose tolerance test (FSIGT). The relationships between AHIMSA subscales (i.e., integration, assimilation, separation, and marginalization), household social position and FSIGT parameters were assessed using multiple linear regression. Results. For African-Americans, integration (integrating their family’s culture with those of mainstream white-American culture) was positively associated with AIRG (, , ) and DI (, , ). For Latino-Americans, household social position was inversely associated with AIRG (, , ) and DI (, , ). Conclusions. Sociocultural orientation and household social position play distinct and opposing roles in shaping type 2 diabetes risk in African-American and Latino-American children and adolescents. Rebecca E. Hasson, Tanja C. Adam, Jay Pearson, Jaimie N. Davis, Donna Spruijt-Metz, and Michael I. Goran Copyright © 2013 Rebecca E. Hasson et al. All rights reserved. Waist Circumference as Measure of Abdominal Fat Compartments Wed, 08 May 2013 17:41:08 +0000 http://www.hindawi.com/journals/jobes/2013/454285/ This study examines intercorrelations among waist circumference (WC), intraperitoneal fat (IPF), and subcutaneous abdominal fat (SAF) in ethnically diverse Dallas Heart Study consisting of 1538 women and 1212 men (50% Black). Correlations between fat depots and triglyceride or HOMA2-IR, biomarkers of metabolic syndrome, are also reported. Total abdominal fat (TAF), ASF, and IPF masses were measured by magnetic resonance imaging. The highest correlations with WC according to ethnicity and gender were noted for TAF with progressively lower correlations with ASF (0.65–0.82) and IPF (0.29–0.85). The percentage of IPF relative to TAF was not significantly correlated with WC. For all WC categories, higher IPF/ASF ratios were associated with higher triglyceride levels. In contrast, differences in ratios had little or no association with HOMA2-IR. However, when all data were pooled, IPF was positively correlated with both triglyceride ( (men) and 0.363 (women)) and HOMA2-IR ( (men) and 0.517 (women)); after adjustment for ASF, IPF was still correlated with triglyceride ( (men) and 0.348 (women)) and HOMA2-IR ( (men) and 0.221 (women)). WC measures TAF reliably, but its association with IPF depends on IPF/ASF ratios that vary by gender and ethnicity. Scott M. Grundy, Ian J. Neeland, Aslan T. Turer, and Gloria Lena Vega Copyright © 2013 Scott M. Grundy et al. All rights reserved. Expanding the Role of Primary Care in the Prevention and Treatment of Childhood Obesity: A Review of Clinic- and Community-Based Recommendations and Interventions Sun, 28 Apr 2013 16:43:17 +0000 http://www.hindawi.com/journals/jobes/2013/172035/ Although pediatric providers have traditionally assessed and treated childhood obesity and associated health-related conditions in the clinic setting, there is a recognized need to expand the provider role. We reviewed the literature published from 2005 to 2012 to (1) provide examples of the spectrum of roles that primary care providers can play in the successful treatment and prevention of childhood obesity in both clinic and community settings and (2) synthesize the evidence of important characteristics, factors, or strategies in successful community-based models. The review identified 96 articles that provide evidence of how primary care providers can successfully prevent and treat childhood obesity by coordinating efforts within the primary care setting and through linkages to obesity prevention and treatment resources within the community. By aligning the most promising interventions with recommendations published over the past decade by the Institute of Medicine, the American Academy of Pediatrics, and other health organizations, we present nine areas in which providers can promote the prevention and treatment of childhood obesity through efforts in clinical and community settings: weight status assessment and monitoring, healthy lifestyle promotion, treatment, clinician skill development, clinic infrastructure development, community program referrals, community health education, multisector community initiatives, and policy advocacy. Michaela Vine, Margaret B. Hargreaves, Ronette R. Briefel, and Cara Orfield Copyright © 2013 Michaela Vine et al. All rights reserved. Endocrine and Metabolic Signaling in Retroperitoneal White Adipose Tissue Remodeling during Cold Acclimation Wed, 24 Apr 2013 17:25:21 +0000 http://www.hindawi.com/journals/jobes/2013/937572/ The expression profiles of adiponectin, resistin, 5′-AMP-activated protein kinase α (AMPKα), hypoxia-inducible factor-1α (HIF-1α), and key enzymes of glucose and fatty acid metabolism and oxidative phosphorylation in rat retroperitoneal white adipose tissue (RpWAT) during 45-day cold acclimation were examined. After transient suppression on day 1, adiponectin protein level increased following sustained cold exposure. In parallel, on day 1, the protein level of HIF-1α was strongly induced and AMPKα suppressed, while afterwards the reverse was seen. What is more, after an initial decrease on day 1, a sequential increase in pyruvate dehydrogenase, acyl-CoA dehydrogenase, cytochrome c oxidase, and ATP synthase and a decrease in acetyl-CoA carboxylase (from day 3) were observed. Similar to adiponectin, protein level of resistin showed a biphasic profile: it increased after days 1, 3, and 7 and decreased below the control after 21 days of cold-acclimation. In summary, the data suggest that adiponectin and resistin are important integrators of RpWAT metabolic response and roles it plays during cold acclimation. It seems that AMPKα mediate adiponectin effects on metabolic remodeling RpWAT during cold acclimation. Aleksandra Jankovic, Aleksandra Korac, Biljana Buzadzic, Vesna Otasevic, Ana Stancic, Milica Vucetic, Milica Markelic, Ksenija Velickovic, Igor Golic, and Bato Korac Copyright © 2013 Aleksandra Jankovic et al. All rights reserved. Systems Science and Childhood Obesity: A Systematic Review and New Directions Tue, 23 Apr 2013 14:05:14 +0000 http://www.hindawi.com/journals/jobes/2013/129193/ As a public health problem, childhood obesity operates at multiple levels, ranging from individual health behaviors to school and community characteristics to public policies. Examining obesity, particularly childhood obesity, from any single perspective is likely to fail, and systems science methods offer a possible solution. We systematically reviewed studies that examined the causes and/or consequences of obesity from a systems science perspective. The 21 included studies addressed four general areas of systems science in obesity: (1) translating interventions to a large scale, (2) the effect of obesity on other health or economic outcomes, (3) the effect of geography on obesity, and (4) the effect of social networks on obesity. In general, little research addresses obesity from a true, integrated systems science perspective, and the available research infrequently focuses on children. This shortcoming limits the ability of that research to inform public policy. However, we believe that the largely incremental approaches used in current systems science lay a foundation for future work and present a model demonstrating the system of childhood obesity. Systems science perspective and related methods are particularly promising in understanding the link between childhood obesity and adult outcomes. Systems models emphasize the evolution of agents and their interactions; such evolution is particularly salient in the context of a developing child. Asheley Cockrell Skinner and E. Michael Foster Copyright © 2013 Asheley Cockrell Skinner and E. Michael Foster. All rights reserved. Anthropometric Changes in the Brazilian Cohort of Older Adults: SABE Survey (Health, Well-Being, and Aging) Tue, 23 Apr 2013 11:24:09 +0000 http://www.hindawi.com/journals/jobes/2013/695496/ The aim of the present study was to analyze the anthropometric changes in a home-based cohort of Brazilian older adults who participated in the SABE Survey, conducted in 2000 and 2006. A total of 1030 men and women were examined by age group: 60–69, 70–79, and ≥80 years. This representative sample consists of the survivors of the 2000 cohort. The following anthropometric variables were assessed: body mass, arm muscle, waist and calf circumferences, triceps skinfold thickness, body mass index, waist-hip ratio, and arm muscle area according to mean values and percentile distribution. Except for body mass and body mass index, a significant difference was observed among the assessed anthropometric variables during the follow-up period. The older adults ≥80 years presented the lowest values. The reduction in the mean values of triceps skinfold thickness was greater (30%) than that of waist circumference (9%) and was more pronounced in women (21%) than in men (9%). Arm muscle circumference and area reduced by 8% and 19%, respectively, in men and 1% and 3%, correspondingly, in women. Our findings revealed reductions in the mean values for all anthropometric variables in the follow-up period from 2000 to 2006 among older adults. Manuela Ferreira de Almeida, Maria de Fátima Nunes Marucci, Luís Alberto Gobbo, Luciana Silva Ferreira, Daiana Aparecida Quintiliano Scarpelli Dourado, Yeda Aparecida de Oliveira Duarte, and Maria Lucia Lebrão Copyright © 2013 Manuela Ferreira de Almeida et al. All rights reserved. Changes in Body Composition, Cardiovascular Disease Risk Factors, and Eating Behavior after an Intensive Lifestyle Intervention with High Volume of Physical Activity in Severely Obese Subjects: A Prospective Clinical Controlled Trial Mon, 22 Apr 2013 10:35:45 +0000 http://www.hindawi.com/journals/jobes/2013/325464/ We examined the effects of a 10–14-weeks inpatient lifestyle modification program, including minimum 90 min of physical activity (PA) five days/week, on body composition, CVD risk factors, and eating behavior in 139 obese subjects (BMI  kg/m2). Completion rate was 71% in the intensive lifestyle intervention (ILI) group and 85% among waiting list controls. Compared to controls body weight ( (95% CI: , ) kg, ), fat mass ( (95% CI: , ) kg, ), fat free mass ( (95% CI: , ) kg, ) and visceral fat ((95% CI: , ) cm2, ) were reduced in the ILI-group after 10–14 weeks. Within the ILI-group weight loss was (95% CI: , ) kg, and (95% CI: , ) kg, , after six and 12 months, respectively. Systolic BP, glucose, triglycerides, and LDL-C were reduced, and HDL-C was increased (all ) after 10–14 weeks within the ILI group. The reduction in glucose and increase in HDL-C were sustained after 12 months (all ). After one year, weight loss was related to increased cognitive restraint and decreased uncontrolled eating (all ). Thus, ILI including high volume of PA resulted in weight loss with almost maintenance of fat-free mass, favorable changes in CVD risk factors, and eating behavior in subjects with severe obesity. Kjersti Karoline Danielsen, Mette Svendsen, Sverre Mæhlum, and Jorunn Sundgot-Borgen Copyright © 2013 Kjersti Karoline Danielsen et al. All rights reserved. Ultrasound Estimates of Visceral and Subcutaneous-Abdominal Adipose Tissues in Infancy Wed, 17 Apr 2013 15:31:20 +0000 http://www.hindawi.com/journals/jobes/2013/951954/ Other imaging techniques to quantify internal-abdominal adiposity (IA-AT) and subcutaneous-abdominal adiposity (SCA-AT) are frequently impractical in infants. The aim of this study was twofold: (a) to validate ultrasound (US) visceral and subcutaneous-abdominal depths in assessing IA-AT and SCA-AT from MRI as the reference method in infants and (b) to analyze the association between US abdominal adiposity and anthropometric measures at ages 3 months and 12 months. Twenty-two infants underwent MRI and US measures of abdominal adiposity. Abdominal US parameters and anthropometric variables were assessed in the Cambridge Baby Growth Study (CBGS), infants (23 girls) at age 3 months and infants (237 girls) at 12 months. US visceral and subcutaneous-abdominal depths correlated with MRI quantified IA-AT (, ) and SCA-AT (, ) volumes, respectively. In CBGS, mean US-visceral depths increased by 20 % between ages 3 and 12 months () and at both ages were lower in infants breast-fed at 3 months than in other infants. US-visceral depths at both 3 and 12 months were inversely related to skinfold thickness at birth ( and at 3 and 12 months, resp.; adjusted for current skinfold thickness). In contrast, US-subcutaneous-abdominal depth at 3 months was positively related to skinfold thickness at birth (). US measures can rank infants with higher or lower IA-AT and SCA-AT. Contrasting patterns of association with visceral and subcutaneous-abdominal adiposities indicate that they may be differentially regulated in infancy. Emanuella De Lucia Rolfe, Neena Modi, Sabita Uthaya, Ieuan A. Hughes, David B. Dunger, Carlo Acerini, Ronald P. Stolk, and Ken K. Ong Copyright © 2013 Emanuella De Lucia Rolfe et al. All rights reserved. Does Adipose Tissue Thermogenesis Play a Role in Metabolic Health? Wed, 17 Apr 2013 14:25:30 +0000 http://www.hindawi.com/journals/jobes/2013/204094/ The function ascribed to brown adipose tissue in humans has long been confined to thermoregulation in neonates, where this thermogenic capacity was thought lost with maturation. Recently, brown adipose tissue depots have been identified in adult humans. The significant oxidative capacity of brown adipocytes and the ability of their mitochondria to respire independently of ATP production, has led to renewed interest in the role that these adipocytes play in human energy metabolism. In our view, there is a need for robust physiological studies determining the relationship between molecular signatures of brown adipose tissue, adipose tissue mitochondrial function, and whole body energy metabolism, in order to elucidate the significance of thermogenic adipose tissue in humans. Until such information is available, the role of thermogenic adipose tissue in human metabolism and the potential that these adipocytes may prevent or treat obesity and metabolic diseases in humans will remain unknown. In this article, we summarize the recent literature pertaining to brown adipose tissue function with the aims of drawing the readers’ attention to the lack of data concerning the role of brown adipocytes in human physiology, and to the potential limitations of current research strategies. Craig Porter, Elisabet Børsheim, and Labros S. Sidossis Copyright © 2013 Craig Porter et al. All rights reserved. Experimental Evidence on the Impact of Food Advertising on Children’s Knowledge about and Preferences for Healthful Food Wed, 17 Apr 2013 11:40:51 +0000 http://www.hindawi.com/journals/jobes/2013/408582/ To understand the rising prevalence of childhood obesity in affluent societies, it is necessary to take into account the growing obesity infrastructure, which over past decades has developed into an obesogenic environment. This study examines the effects of one of the constituent factors of consumer societies and a potential contributory factor to childhood obesity: commercial food communication targeted to children. Specifically, it investigates the impact of TV advertising on children’s food knowledge and food preferences and correlates these findings with their weight status. Evaluations of traditional information- and education-based interventions suggest that they may not sustainably change food patterns. Based on prior consumer research, we propose five hypotheses, which we then test using a subsample from the IDEFICS study, a large-scale pan-European intervention study on childhood obesity. The results indicate that advertising has divergent effects on children’s food knowledge and preferences and that food knowledge is unrelated to food preferences. This finding has important implications for both future research and public policy. Lucia A. Reisch, Wencke Gwozdz, Gianvincenzo Barba, Stefaan De Henauw, Natalia Lascorz, and Iris Pigeot Copyright © 2013 Lucia A. Reisch et al. All rights reserved. Towards Health in All Policies for Childhood Obesity Prevention Tue, 16 Apr 2013 09:49:07 +0000 http://www.hindawi.com/journals/jobes/2013/632540/ The childhood obesity epidemic can be best tackled by means of an integrated approach, which is enabled by integrated public health policies, or Health in All Policies. Integrated policies are developed through intersectoral collaboration between local government policy makers from health and nonhealth sectors. Such intersectoral collaboration has been proved to be difficult. In this study, we investigated which resources influence intersectoral collaboration. The behavior change wheel framework was used to categorize motivation-, capability-, and opportunity-related resources for intersectoral collaboration. In-depth interviews were held with eight officials representing 10 non-health policy sectors within a local government. Results showed that health and non-health policy sectors did not share policy goals, which decreased motivation for intersectoral collaboration. Awareness of the linkage between health and nonhealth policy sectors was limited, and management was not involved in creating such awareness, which reduced the capability for intersectoral collaboration. Insufficient organizational resources and structures reduced opportunities for intersectoral collaboration. To stimulate intersectoral collaboration to prevent childhood obesity, we recommend that public health professionals should reframe health goals in the terminology of nonhealth policy sectors, that municipal department managers should increase awareness of public health in non-health policy sectors, and that flatter organizational structures should be established. Anna-Marie Hendriks, Stef P. J. Kremers, Jessica S. Gubbels, Hein Raat, Nanne K. de Vries, and Maria W. J. Jansen Copyright © 2013 Anna-Marie Hendriks et al. All rights reserved. Weight Loss Maintenance in African American Women: A Systematic Review of the Behavioral Lifestyle Intervention Literature Thu, 11 Apr 2013 14:00:00 +0000 http://www.hindawi.com/journals/jobes/2013/437369/ We performed a systematic review of the behavioral lifestyle intervention trials conducted in the United States published between 1990 and 2011 that included a maintenance phase of at least six months, to identify intervention features that promote weight loss maintenance in African American women. Seventeen studies met the inclusion criteria. Generally, African American women lost less weight during the intensive weight loss phase and maintained a lower % of their weight loss compared to Caucasian women. The majority of studies failed to describe the specific strategies used in the delivery of the maintenance intervention, adherence to those strategies, and did not incorporate a maintenance phase process evaluation making it difficult to identify intervention characteristics associated with better weight loss maintenance. However, the inclusion of cultural adaptations, particularly in studies with a mixed ethnicity/race sample, resulted in less % weight regain for African American women. Studies with a formal maintenance intervention and weight management as the primary intervention focus reported more positive weight maintenance outcomes for African American women. Nonetheless, our results present both the difficulty in weight loss and maintenance experienced by African American women in behavioral lifestyle interventions. Lisa M. Tussing-Humphreys, Marian L. Fitzgibbon, Angela Kong, and Angela Odoms-Young Copyright © 2013 Lisa M. Tussing-Humphreys et al. All rights reserved.