Intraduodenal nutrient infusion differentially alters intestinal nutrient sensing, appetite, and satiety responses in lean and obese subjects.

BACKGROUND: Intestinal nutrient sensing regulates food intake and energy metabolism by acting locally and relaying nutritional status to the brain. It is unclear whether these mechanisms are altered in obese humans. OBJECTIVES: We aimed to investigate differences in duodenal nutrient sensing in humans with or without obesity and the effects of transiently blocking vagal transmission on nutrient sensing, hunger, and appetite. METHODS: In a single-blinded, randomized, cross-over design, subjects with or without obesity (n = 14 and n = 11, respectively) were infused intraduodenally with saline or a combination of glucose and oleic acid for 90 min (glucose load: 22.5 g, 1 kcal/min; oleic acid load: 10 g, 1 kcal/min) in the presence or absence of local anesthetic (benzocaine). Blood was sampled at 10-min intervals (120-240 min) and 15-min intervals until termination of the study for measurements of gut hormones, insulin, leptin, and C-peptide. Hunger and satiety sensations were scored using the visual analog scale, and hepatic glucose production and glucose oxidation rates were measured. RESULTS: Duodenal nutrient infusion in lean subjects led to a 65% drop in acyl ghrelin release and robustly increased cholecystokinin 8 (CCK-8) release (65%; P = 0.023); benzocaine infusion delayed this response (2-factor repeated-measures analysis of variance, P = 0.0065). In contrast, subjects with obesity had significantly blunted response to nutrient infusion, and no further effects were observed with benzocaine. Additionally, significant delays were observed in peptide YY (3-36), pancreatic polypeptide, glucose inhibitory peptide, and glucagon-like peptide 1 (7-36) response. No significant interactions were found between body mass index (BMI) or baseline hormone levels and areas under the curve for hormones except CCK-8 (BMI, P = 0.018; baseline CCK, P = 0.013). Nutrient-induced hunger and satiety sensations were impeded by benzocaine only in the lean cohort. Hunger and satiety sensations in subjects with obesity were not responsive to nutrient entry into the duodenum, and no additional effects were observed by blocking neural signaling. CONCLUSION: Nutrient-induced gut hormone release and response to transient vagal blockade are significantly blunted in subjects with obesity. This trial was registered at clinicaltrials.org as NCT02537314.

How do children with severe underweight and wasting respond to treatment? A pooled secondary data analysis to inform future intervention studies.

Children with weight-for-age z-score (WAZ) <-3 have a high risk of death, yet this indicator is not widely used in nutrition treatment programming. This pooled secondary data analysis of children aged 6-59 months aimed to examine the prevalence, treatment outcomes, and growth trajectories of children with WAZ <-3 versus children with WAZ ≥-3 receiving outpatient treatment for wasting and/or nutritional oedema, to inform future protocols. Binary treatment outcomes between WAZ <-3 and WAZ ≥-3 admissions were compared using logistic regression. Recovery was defined as attaining mid-upper-arm circumference ≥12.5 cm and weight-for-height z-score ≥-2, without oedema, within a period of 17 weeks of admission. Data from 24,829 children from 9 countries drawn from 13 datasets were included. 55% of wasted children had WAZ <-3. Children admitted with WAZ <-3 compared to those with WAZ ≥-3 had lower recovery rates (28.3% vs. 48.7%), higher risk of death (1.8% vs. 0.7%), and higher risk of transfer to inpatient care (6.2% vs. 3.8%). Growth trajectories showed that children with WAZ <-3 had markedly lower anthropometry at the start and end of care, however, their patterns of anthropometric gains were very similar to those with WAZ ≥-3. If moderately wasted children with WAZ <-3 were treated in therapeutic programmes alongside severely wasted children, we estimate caseloads would increase by 32%. Our findings suggest that wasted children with WAZ <-3 are an especially vulnerable group and those with moderate wasting and WAZ <-3 likely require a higher intensity of nutritional support than is currently recommended. Longer or improved treatment may be necessary, and the timeline and definition of recovery likely need review.

Growth management and prevalence of underweight of indigenous children (Orang Asli) in Peninsular Malaysia: a clinical audit.

BACKGROUND: Most indigenous people (Orang Asli in Peninsular Malaysia) live in poverty, and their children are at risk of growth problems due to nutrition deficiency. Routine health and growth assessments are essential to identify these children. This clinical audit aimed to determine the growth management of indigenous children and the prevalence of underweight among these children in Perak state, Malaysia. METHODS: A clinical audit was conducted in 2016 after obtaining consensus from stakeholders for audit criteria, forms, and procedures. All weight-for-age growth charts of Orang Asli children aged 2 and below were sampled for retrospective audit. This audit excluded children who required special needs. Growth charts were examined against audit criteria: (i) quality of growth chart plotting (charts were not plotted, incompletely plotted, or incorrectly plotted), (ii) presence of underweight, and (iii) appropriateness of action taken (appropriate or inappropriate action) according to local standard operating policies. Eligible auditors were first trained using simulated growth charts. RESULTS: Out of 1329 growth charts audited, 797 (60%) growth charts were correctly plotted, 527 (39.7%) were incompletely or incorrectly plotted, and five (0.3%) were not plotted. Overall, 40.0% of the growth chart was plotted incorrectly or completely not plotted. 550 (41.4%) children were found to be underweight, and 71.5% of them received inappropriate care management. Where growth charts were correctly plotted, 283 children were identified with underweight problems, and 194 (68.6%) of them received inappropriate care. For growth charts that were plotted incompletely or incorrectly, 267 children were identified as having underweight problems, and 199 (74.5%) received inappropriate care. The growth status of 265 (19.9%) children was unable to be determined due to incomplete plotting. CONCLUSION: Approximately 40% of indigenous Orang Asli children aged 2 years and under were underweight, and most of them received inappropriate care.

Early within-person weight gain and variability during inpatient treatment for anorexia nervosa: Age-dependent effects on treatment outcome.

OBJECTIVE: Early weight gain during inpatient treatment for anorexia nervosa (AN) is a dynamic process characterised by within-person variability that may be age-dependent. We examined whether age moderates the effect of within-person weight gain and variability on treatment outcome. METHOD: Within-person level estimates of N = 2881 underweight adolescents and adults with AN for daily average weight gain (linear slope) and variability (root mean squared errors) were obtained using random-effects modelling. Between-person level regression analyses were calculated to assess effects on weight, eating disorder psychopathology and attaining normal body weight (body mass index [BMI]: 18.5-25 kg/m2 ). RESULTS: Higher weight gain during first 2 weeks of inpatient treatment predicted higher weight, lower drive for thinness and lower body dissatisfaction at discharge, but not lower bulimic symptoms. Moreover, it predicted a higher probability of discharge weight within normal range. Younger age was associated with stronger effects of early weight gain on weight, drive for thinness and body dissatisfaction at discharge. Weight variability was not associated with any outcome. CONCLUSIONS: Age moderated effects of early weight gain on treatment outcomes, with larger effects for younger patients. Weight variability alone did not influence treatment across age and should be of lesser clinical concern during early inpatient treatment.

Insulin Resistance Adversely Affect IVF Outcomes in Lean Women Without PCOS.

Objective: To investigate the effects of insulin resistance (IR) on IVF outcomes and a potential underlying mechanism in lean women without PCOS. Design: A prospective cohort study at the University Clinic. Setting: IVF center at the University setting. Patients: A total of 155 lean women (body mass index <25) without PCOS undergoing IVF cycle. Intervention: Patients were allocated to IR and non-IR groups based on HOMA-M120. Main Outcome Measures: IVF outcomes, including egg quality, the percentage of mature oocytes, fertilization rate, blastocyst formation rate, advanced embryo rate, and cumulative live birth rate were investigated. Auto-immune parameters, peripheral blood immunophenotypes, thyroid hormone, homocysteine, and 25-OH-vitamin D3 (25-OH-VD3) levels were analyzed. Results: The percentage of mature oocytes and blastocyst formation rate were significantly lower in the IR group as compared with those of the non-IR group (p<0.05, respectively). The proportion of peripheral blood CD19+ B cells was significantly higher in the IR group than those of the non-IR group (p<0.05). Homocysteine, 25-OH-VD3, and auto-immune parameters were the same between the two groups. Conclusion: In lean infertile women without PCOS, IR is associated with the decreased percentage of mature eggs and poor embryo quality in which B cell immunity may play a role.

Strategies to Understand the Weight-Reduced State: Genetics and Brain Imaging.

Most individuals with obesity or overweight have difficulty maintaining weight loss. The weight-reduced state induces changes in many physiological processes that appear to drive weight regain. Here, we review the use of cell biology, genetics, and imaging techniques that are being used to begin understanding why weight regain is the normal response to dieting. As with obesity itself, weight regain has both genetic and environmental drivers. Genetic drivers for "thinness" and "obesity" largely overlap, but there is evidence for specific genetic loci that are different for each of these weight states. There is only limited information regarding the genetics of weight regain. Currently, most genetic loci related to weight point to the central nervous system as the organ responsible for determining the weight set point. Neuroimaging tools have proved useful in studying the contribution of the central nervous system to the weight-reduced state in humans. Neuroimaging technologies fall into three broad categories: functional, connectivity, and structural neuroimaging. Connectivity and structural imaging techniques offer unique opportunities for testing mechanistic hypotheses about changes in brain function or tissue structure in the weight-reduced state.

Talking About Weight With Families-Helping Health Care Professionals Start the Conversation: A Nonrandomized Controlled Trial.

Health care professionals (HCPs) and trainees feel ill-equipped to discuss weight-related issues with children and their families. A whiteboard video for HCPs and trainees outlining strategies to communicate about weight was developed and evaluated. Seventy HCPs, including 15 trainees, participated in the baseline assessment and 39 repeated measures 4 to 6 months later. HCP self-efficacy for initiating conversations with overweight and underweight patients, measured immediately following the video, significantly improved from pre-video values (Z = -5.6, P ≤ .001, and Z= -3.3, P = .001, respectively). Although improvements were not sustained 4 to 6 months later (overweight: P = .143, and underweight: P = .846), no significant decline was observed, suggesting retention of the skill. A majority of HCP respondents would recommend the video to a colleague and feel it will affect their practice. Thus, the present study suggests educational videos may be an effective tool for facilitating healthy weight-related conversations between HCPs and their pediatric patients.

Effect of a 12-week endurance training program on force transfer and membrane integrity proteins in lean, obese, and type 2 diabetic subjects.

The mechanisms accounting for the loss of muscle function with obesity and type 2 diabetes are likely the result of a combination of neural and muscular factors. One muscular factor that is important, yet has received little attention, is the protein machinery involved in longitudinal and lateral force transmission. The purpose of this study was to compare the levels of force transfer and membrane integrity proteins before and after a 12-week endurance training program in lean, obese, and obese type 2 diabetic adults. Nineteen sedentary subjects (male = 8 and female = 11) were divided into three groups: Lean (n = 7; 50.3 ± 4.1 y; 69.1 ± 7.2 kg); Obese (n = 6; 49.8 ± 4.1 y; 92.9 ± 19.5 kg); and Obese with type 2 diabetes (n = 6; 51.5 ± 7.9 years; 88.9 ± 15.1 kg). Participants trained 150 min/week between 55% and 75% of VO2max for 12 weeks. Skeletal muscle biopsies were taken before and after the training intervention. Baseline dystrophin and muscle LIM protein levels were higher (~50% p < .01) in lean compared to obese and type 2 diabetic adults, while the protein levels of the remaining force transfer and membrane integrity proteins were similar between groups. After training, obese individuals decreased (-53%; p < .01) the levels of the muscle ankyrin repeat protein and lean individuals decreased dystrophin levels (-45%; p = .01), while the levels of the remaining force transfer and membrane integrity proteins were not affected by training. These results suggest that there are modest changes to force transfer and membrane integrity proteins in middle-aged individuals as a result of 12 weeks of lifestyle and training interventions.

Evaluation of Very Integrated Program: Health Promotion for Patients With Alcohol and Drug Addiction-A Randomized Trial.

BACKGROUND: Compared to the general population, patients with alcohol and drug addiction have an increased risk of additional hazardous lifestyles and suffer from more chronic diseases, adding to their already significantly higher morbidity and mortality. The objective of this study was to test the efficacy of the Very Integrated Program (VIP) on treatment and health outcomes for patients diagnosed with alcohol and drug addiction. METHODS: Parallel randomized clinical trial with intervention as add-on to addiction care as usual. A total of 322 patients aged 18 years or older were identified, and the study requirements were fulfilled by 219 patients, 7 of whom participated in a pilot. The intervention was a 6-week intensive, tailored, educational program that included motivational interviewing, a smoking cessation program, dietary and physical activity counseling, and patient education. The main outcome measures were substance-free days, time to relapse, and treatment adherence assessed after 6 weeks and 12 months. Secondary outcomes were lifestyle factors, symptoms of comorbidity, and quality of life. Missing data were imputed conservatively by using data closest to the follow-up date and baseline values in patients with no follow-up. RESULTS: The 212 patients (intervention, n = 113; control, n = 99) were randomized, and 202 had complete data for primary outcomes. After 6 weeks, there were no significant differences between the groups regarding primary or secondary outcomes. At the 12-month follow-up, the patients in the control group had significantly more total substance-free days (139 days; ranging 0 to 365 vs. 265; 0 to 366, p = 0.021)-specifically among the patients with drug addiction-and higher physical and mental quality of life (45 vs. 58, p = 0.049 and 54 vs. 66, p = 0.037), but not in the per-protocol analysis (60 vs. 46, p = 0.52 and 70 vs. 66, p = 0.74). The sensitivity analyses did not support significant differences between the groups. CONCLUSION: Overall, adding VIP intervention did not improve outcome of the alcohol or drug addiction care or the lifestyle compared to the addiction care alone. This patient group is still in need of effective programs, and new intervention research is required to develop that.

Body shape in inpatients with severe anorexia nervosa.

BACKGROUND: Anorexia nervosa (AN) is a severe mental disorder. Body shape disturbances are key in the development and maintenance of AN. Only few data are available on inpatients with life-threatening AN. Therefore, we aimed to investigate if body shape difficulties-with a focus on both body checking and avoidance-could improve during hospitalization in both subtypes of AN and to ascertain eventual associations between body shape concerns upon admission and clinical outcome. METHODS: Upon hospital admission and end of treatment (EOT), 139 inpatients with AN completed Body Shape Questionnaire (BSQ), Body Checking Questionnaire (BCQ), and Body Image Avoidance Questionnaire (BIAQ) in addition to measures of eating and general psychopathology. RESULTS: Patients with severe AN reported improved BSQ and BIAQ scores at EOT while BCQ did not significantly change. Diagnostic subtypes differed only in baseline BSQ scores and had an impact on the improvement in BSQ at EOT. Baseline BCQ was associated with patients' clinical improvement at EOT, even after controlling for age, duration of illness, Body Mass Index, depression, and anxiety scores. CONCLUSIONS: Data on body shape concerns and their trajectory during hospitalization for severe AN are lacking; our findings provide support to the effectiveness of hospitalization in improving body shape concerns and body avoidance, but not body checking. Also, baseline body shape concerns (especially body checking) impacted on clinical improvement. Future research is needed to identify treatments that could further improve the therapeutic approach to severe patients of AN in the acute setting.

Randomized trial results of alerting primary clinicians to severe weight loss among older adults in the Low Indexes of Metabolism Intervention Trial part A.

AIM: To test whether alerting clinicians to severe weight loss in older patients leads to higher dietitian visit rates, to higher body mass index (BMI) levels and, mainly, to lower annual death risk. METHODS: The randomized controlled trial included patients aged ≥75 years, with BMI ≤23 kg/m2 that decreased ≥2 kg/m2 during the previous 2 years. All participants received usual care. Additionally, an email alert was sent only to clinicians of participants assigned to the email alert group. The follow-up period was 12 months. RESULTS: Among 706 participants (mean age 83 ± 6 years; mean baseline BMI 20.5 kg/m2 ), the BMI record was updated in 541 (77%) participants, and 123 participants died. Dietitian visits were reported for 22 patients (6%) in the email group (n = 362) and 14 patients (4%) in the control group (n = 344; OR 1.5, 95% CI 0.8-2.9; P = 0.24). Measured BMI were raised by a mean of 0.69 (95% CI 0.43-0.95) kg/m2 versus 0.79 (95% CI 0.48-1.1) kg/m2 (P = 0.63). A total of 77 patients (21%) died in the intervention group versus 47 (14%) in the control group (P = 0.008; number needed to harm = 13; 95% CI 7-43). CONCLUSIONS: In this trial, alerting clinical staff to severe weight loss in patients aged ≥75 years was not associated with higher visit rates to a dietitian or change in BMI, but was associated with a significantly higher death rate than usual clinical care. Geriatr Gerontol Int 2020; 20: 329-335.

Impact of Feed the Future initiative on nutrition in children aged less than 5 years in sub-Saharan Africa: difference-in-differences analysis.

OBJECTIVE: To evaluate the impact of the US government's Feed the Future initiative on nutrition outcomes in children younger than 5 years in sub-Saharan Africa. DESIGN: Difference-in-differences quasi-experimental approach. SETTING: Households in 33 low and lower middle income countries in sub-Saharan Africa. POPULATION: 883 309 children aged less than 5 years with weight, height, and age recorded in 118 surveys conducted in 33 countries between 2000 and 2017: 388 052 children were from Feed the Future countries and 495 257 were from non-Feed the Future countries. MAIN OUTCOME MEASURES: A difference-in-differences approach was used to compare outcomes among children in intervention countries after implementation of the initiative with children before its introduction and children in non-intervention countries, controlling for relevant covariates, time invariant national differences, and time trends. The primary outcome was stunting (height for age >2 standard deviations below a reference median), a key indicator of undernutrition in children. Secondary outcomes were wasting (low weight for height) and underweight (low weight for age). RESULTS: Across all years and countries, 38.3% of children in the study sample were stunted, 8.9% showed wasting, and 21.3% were underweight. In the first six years of Feed the Future's implementation, children in 12 countries with the initiative exhibited a 3.9 percentage point (95% confidence interval 2.4 to 5.5) greater decline in stunting, a 1.1 percentage point (0.1 to 2.1) greater decline in wasting, and a 2.8 percentage point (1.6 to 4.0) greater decline in underweight levels compared with children in 21 countries without the initiative and compared with trends in undernutrition before Feed the Future was launched. These decreases translate to around two million fewer stunted and underweight children aged less than 5 years and around a half million fewer children with wasting. For context, about 22 million children were stunted, 11 million children were underweight, and four million children were wasted in the Feed the Future countries at baseline. CONCLUSIONS: Feed the Future's activities were closely linked to notable improvements in stunting and underweight levels and moderate improvements in wasting in children younger than 5 years. These findings highlight the effectiveness of this large, country tailored initiative focused on agriculture and food security and have important implications for the future of this and other nutrition interventions worldwide.

Weight management among school-aged children and adolescents: a quantitative assessment in a Ghanaian municipality.

BACKGROUND: Childhood and adolescent overweight, obesity and underweight have become an issue of grave concern to both the developed and developing countries in context of global burden of non-communicable diseases. Unhealthy weight status is a significant public health issue for developing countries, of which Ghana is not excluded. This study evaluated the prevalence of overweight, obesity and underweight and its related factors among school-aged children and adolescents. METHODS: A total of 1004 participants were randomly selected from six schools. A structured questionnaire on demography and socioeconomic status of students' parents/guardians was completed by the selected students. Anthropometric parameters were measured, and body mass index (BMI) and waist-to-height ratio (WHtR) were calculated. BMI-for-age z-scores were used to categorize anthropometric data of the children as underweight, normal, overweight or obese. A cut-off value of > 0.50 was used to define obesity by WHtR. RESULTS: Overweight prevalence of 13.8% and 12.6 was observed among basic school and high school students respectively based on BMI classification. Obesity prevalence of 8.8% was found in basic school students and 8.9% among high school students. Underweight was observed in 114 (11.3%) basic school students and 86 (8.6%) high school students. There was a difference in sex prevalence in unhealthy weight-behaviours; with more girls being overweight (19.4% vs 7.6%, p < 0.001) and obese (10.2% vs. 7.3%, p = 0.177) compared to boys. High WHtR found in 10.5% of basic students and 5.0% of high school students, with a statistical difference. Overweight/obesity was significantly associated with taking snacks before bed among basic school students [aOR = 10.45(5.95-18)] and high school students [aOR = 10.23(5.95-18.37)] respectively. Watching TV [aOR = 0.39(0.22-0.70)], sleeping during leisure periods [aOR = 0.43(0.23-0.81)] and bicycling as a means of transport [aOR = 0.37(0.19-0.72)] to school was protective of obesity among basic school students. CONCLUSION: High prevalence of unhealthy weight-related behaviours was observed among school-aged children in the Bekwai Municipality. Snacking before bed was a major factor promoting obesity among school-aged children while leisure behaviours such as TV watching, and sleeping were protective of obesity. Therefore, it is recommended to promote and support healthy eating habits among school-aged children which are likely beneficial in reducing the risk of childhood unhealthy weight-related behaviours.

Determinants of healthcare utilization and costs in COPD patients: first longitudinal results from the German COPD cohort COSYCONET.

Background: In light of overall increasing healthcare expenditures, it is mandatory to study determinants of future costs in chronic diseases. This study reports the first longitudinal results on healthcare utilization and associated costs from the German chronic obstructive pulmonary disease (COPD) cohort COSYCONET. Material and methods: Based on self-reported data of 1904 patients with COPD who attended the baseline and 18-month follow-up visits, direct costs were calculated for the 12 months preceding both examinations. Direct costs at follow-up were regressed on baseline disease severity and other co-variables to identify determinants of future costs. Change score models were developed to identify predictors of cost increases over 18 months. As possible predictors, models included GOLD grade, age, sex, education, smoking status, body mass index, comorbidity, years since COPD diagnosis, presence of symptoms, and exacerbation history. Results: Inflation-adjusted mean annual direct costs increased by 5% (n.s., €6,739 to €7,091) between the two visits. Annual future costs were significantly higher in baseline GOLD grades 2, 3, and 4 (factors 1.24, 95%-confidence interval [1.07-1.43], 1.27 [1.09-1.48], 1.57 [1.27-1.93]). A history of moderate or severe exacerbations within 12 months, a comorbidity count >3, and the presence of dyspnea and underweight were significant predictors of cost increase (estimates ranging between + €887 and + €3,679, all p<0.05). Conclusions: Higher GOLD grade, comorbidity burden, dyspnea and moderate or severe exacerbations were determinants of elevated future costs and cost increases in COPD. In addition we identified underweight as independent risk factor for an increase in direct healthcare costs over time.

Hospital course of underweight youth with ARFID treated with a meal-based behavioral protocol in an inpatient-partial hospitalization program for eating disorders.

OBJECTIVE: Information on nutritional rehabilitation for underweight patients with avoidant/restrictive food intake disorder (ARFID) is scarce. This study characterized hospitalized youth with ARFID treated in an inpatient (IP)-partial hospitalization behavioral eating disorders (EDs) program employing an exclusively meal-based rapid refeeding protocol and compared weight restoration outcomes to those of patients with anorexia nervosa (AN). METHOD: Data from retrospective chart review of consecutive underweight admissions (N = 275; age 11-26 years) with ARFID (n = 27) were compared to those with AN (n = 248) on clinical features, reason for discharge, and weight restoration variables. For patients with ARFID, presenting phenomenology was further characterized by detailed chart review. RESULTS: At admission, 53% of patients with ARFID were vomiting regularly. The predominant ARFID subtype was ARFID-aversive, with close to a third being mixed subtype. Gastrointestinal (GI) symptomatology (81.5%) was the most commonly endorsed reason for restriction. A third had undergone unsuccessful parenteral or enteral tube feeding. Patients with ARFID were more likely male, had higher admission BMI, and slower IP weight gain (1.36 kg /week vs 1.92) compared to patients with AN. Fewer patients with ARFID transitioned to the partial hospitalization program, although the proportion discharged for clinical improvement did not differ and both groups had a mean program discharge BMI >18.5. DISCUSSION: GI symptoms appear a common contributor to restrictive eating amongst hospitalized youth with ARFID. Despite a slightly lower rate of IP weight gain, clinical improvement and weight restoration at discharge were similar for patients with ARFID compared to AN.

Dynamic changes in white matter microstructure in anorexia nervosa: findings from a longitudinal study.

BACKGROUND: Gray matter (GM) 'pseudoatrophy' is well-documented in patients with anorexia nervosa (AN), but changes in white matter (WM) are less well understood. Here we investigated the dynamics of microstructural WM brain changes in AN patients during short-term weight restoration in a combined longitudinal and cross-sectional study design. METHODS: Diffusion-weighted images were acquired in young AN patients before (acAN-Tp1, n = 56) and after (acAN-Tp2, n = 44) short-term weight restoration as well as in age-matched healthy controls (HC, n = 60). Images were processed using Tract-Based-Spatial-Statistics to compare fractional anisotropy (FA) across groups and timepoints. RESULTS: In the cross-sectional comparison, FA was significantly reduced in the callosal body in acAN-Tp1 compared with HC, while no differences were found between acAN-Tp2 and HC. In the longitudinal arm, FA increased with weight gain in acAN-Tp2 relative to acAN-Tp1 in large parts of the callosal body and the fornix, while it decreased in the right corticospinal tract. CONCLUSIONS: Our findings reveal that dynamic, bidirectional changes in WM microstructure in young underweight patients with AN can be reversed with brief weight restoration therapy. These results parallel those previously observed in GM and suggest that alterations in WM in non-chronic AN are also state-dependent and rapidly reversible with successful intervention.

Outpatient CBT for Underweight Patients with Eating Disorders: Effectiveness Within a National Health Service (NHS) Eating Disorders Service.

BACKGROUND: Underweight eating disorders (EDs) are notoriously difficult to treat, although a growing evidence base suggests that outpatient cognitive behaviour therapy for EDs (CBT-ED) can be effective for a large proportion of individuals. AIMS: To investigate the effectiveness of CBT-ED for underweight EDs in a 'real-world' settings. METHOD: Sixty-three adults with underweight EDs (anorexia nervosa or atypical anorexia nervosa) began outpatient CBT-ED in a National Health Service setting. RESULTS: Fifty-four per cent completed treatment, for whom significant changes were observed on measures of ED symptoms, psychological distress and psychosocial impairment. There was also a large effect on body weight at end-of-treatment. CONCLUSIONS: The results suggest that good outcomes can be achieved by the majority of those who complete treatment, although treatment non-completion remains a significant barrier to recovery. Future studies should focus on improving treatment retention, as evidence suggests that CBT-ED in 'real-world' settings is effective.

Visceral, general, abdominal adiposity and atherogenic index of plasma in relatively lean hemodialysis patients.

BACKGROUND: Obesity is a well-established risk factor for atherosclerosis. However, it is unknown which measure of adiposity best relates to atherosclerosis in relatively lean maintenance hemodialysis (MHD) patients. We aimed to explore and compare the associations between different adiposity indices reflecting general, abdominal, visceral adiposity and arteriosclerosis risk with atherogenic index of plasma(AIP) in relatively lean MHD patients. METHODS: We conducted a multicenter, cross-sectional study in Guizhou Province, Southwest China. General/abdominal adiposity indices like body mass index (BMI), waist circumference(WC), waist-height ratio(WHtR), conicity index (Ci) and visceral obesity indices including visceral adiposity index (VAI), lipid accumulation product (LAP) and the hypertriglyceridemic waist phenotype (HW phenotype) were recorded. Univariate and multivariate linear regression models were used. RESULTS: All adiposity indices correlated positively with AIP in univariate analysis both in men and women except for Ci. After adjustment for age and traditional atherosclerosis risk factors, BMI, WC, WHtR, VAI and LAP still had associations with AIP both in men (ß = 0.265, 0.153, 0.16, 0.788 and 0.74, respectively, all P < 0.001) and women (ß = 0.34,0.199, 0.21, 0.83 and 0.74, respectively, all P < 0.001). After further adjustment for BMI, associations between AIP and VAI, LAP remained significant, but associations between WC, WHtR and AIP disappeared. CONCLUSIONS: The HW phenotype, VAI, and LAP, validated and convenient markers of visceral obesity, were superior to classical anthropometric general/ abdominal adiposity indices for atherosclerosis risk assessment, especially in relatively lean MHD patients aged 40 years or older.

Factores sociales en la vivencia del cuerp de mujeres con peso normal y con obesidad: rol de la madre, el padre y la pareja / Social factors that affect the corporal experience in normal weight and obse women: the mother's role, the father and the couple

El objetivo de este estudio fue describir y comparar la influencia de factores sociales, específicamente de vínculos cercanos (madre, padre y pareja), sobre la vivencia del cuerpo en mujeres jóvenes con peso normal y con obesidad. Se realizó una investigación exploratoria cualitativa y se analizaron los datos a través de codificación abierta, basada en la Teoría Fundamentada. La muestra estuvo conformada por ocho mujeres, cuatro con obesidad mórbida y cuatro normopeso, entre 20 y 25 años. Los resultados confirman que la insatisfacción corporal está presente en todas las participantes independiente de su peso corporal. Las personas cercanas ejercen presión por la delgadez, la madre estaría más centrada en lo estético, mientras el padre expresaría mayor preocupación por la salud. Las participantes se muestran vulnerables a los mensajes contradictorios de la pareja, generando inseguridad. Sin embargo, la presión de los vínculos cercanos no sería suficiente para generar cambios de hábitos. Se observa ambivalencia entre la valoración de un cuerpo delgado y otro curvilíneo, ideales que se superponen y generan malestar.

The objective of this study was to describe the influence of social factors, specifically close affective bonds (mother, father and couple), on body experience in young women with obesity and normal weight. A qualitative exploratory research was carried out and data were analyzed with Grounded Theory. A sample of eight women between 20 and 25 years old participated, four of them with morbid obesity and four with normal weight. The results confirm that body dissatisfaction is present in all the participants, which is associated with the pressure to be thin exerted by the people close to them. Mothers are more centered on the aesthetic, while fathers seem to have more concern about health. Participants are vulnerable to the couple's conflicting messages, generating insecurity. However, the pressure of the environment does not seem to be enough to change the habits. Ambivalence is observed between the appreciation of a thin body and a curvilinear one at the same time, ideals that overlap and generate discomfort.