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ideal body weight [keywords]
- VALIDATING AN ENERGY EXPENDITURE PREDICTION EQUATION IN OVERWEIGHT AND OBESE MEXICAN PATIENTS. [JOURNAL ARTICLE]
- Nutr Hosp 2014; 30(n04):749-755.
Background: The prevalence of overweight and obesity in Mexico is approximately 70%; thus, obtaining a reliable measurement of the resting energy expenditure (REE) in these patients is of extreme importance. The aim of the study was to obtain a prediction equation of REE in overweight or obese outpatients in the Mexican population. Methods: The study was conducted at The National Institute for Medical Sciences and Nutrition Salvador Zubiran (Mexico, D.F.). Consecutive outpatients (18-70 years old) at the Clinical Nutrition were evaluated between March 2010 and August 2012 after being diagnosed with overweight or obesity (body mass index [BMI] ≥ 25 kg/m2). Patients with any disease that could affect the measurement of gas exchange were excluded. Participants were evaluated by indirect calorimetry (IC), bioelectrical impedance analysis (BIA) and anthropometric measurements to design the REE prediction equation. Two groups were evaluated: one group for derivation and another group for validation. The REE was also estimated using the equations of Harris-Benedict, Mifflin St-Jeor, Ireton-Jones, Carrasco, Kleiber and Owen, assessing current weight, ideal weight and adjusted weight. A REE equation was obtained by multiple linear regression based on the evaluated variables, and those that gave the best precision to the model were selected. The real REE and the estimated REE were then compared using Student's t-test. To highlight differences, pairs of measurements were further analyzed using the Bland & Altman plot. Pearson correlation coefficients and coefficients of determination between REE values measured by IC and REE values estimated using various formulas were calculated. Results: A total of 77 patients were included in the derivation group: 38 men (49.4%) and 39 women (50.6%). The mean age was 48.5 쎼} 13.9 years, and the mean BMI was 34.7 쎼} 5.7 kg/m2. A total of 50 participants were included in the validation group: 16 men (32%) and 34 women (68%). The mean age was 48.5 쎼} 15.5 years, and the mean BMI was 34.2 쎼} 5.2 kg/m2. The baseline characteristics of both groups were homogeneous. IC reported an average of 2001 쎼} 552 kcal, with a respiratory quotient (RQ) of 0.75 쎼} 0.04. The new REE equation that resulted from the statistical model had an R2 = 0.52 and a bias of 쎼} 3.39 kcal. When the REE obtained from IC was compared with the REE estimated by the new formula, there was no significant difference between the results, and the correlation for all participants was 0.71 (p.
- Obesity: long-term management after bariatric surgery. [Journal Article]
- FP Essent 2014 Oct.:29-33.
For many patients, bariatric surgery results in enduring weight loss and comorbidity resolution, but it is not without risk of complications. Complications necessitating possible surgical intervention include small bowel obstruction, internal hernia, intussusception, anastomotic ulcer, and anastomotic leak. Medical complications include dumping syndrome; osteoporosis; substance abuse; nephrolithiasis; high suicide rates; and nutritional deficiencies, some of which can result in neurologic disorders. Patients need to take daily multivitamins with minerals (containing iron, copper thiamine, and folic acid), vitamin D, and calcium to prevent nutritional deficiencies. Patients also need to consume 1 to 1.5 g of protein per kilogram of ideal body weight daily. Vitamin levels should be assessed on a regular basis to monitor for deficiencies and prevent neurologic sequelae.
- The effect of multiple family therapy on weight gain in adolescents with anorexia nervosa: pilot data. [Journal Article]
- J Can Acad Child Adolesc Psychiatry 2014 Sep; 23(3):196-9.
Preliminary research suggests that multiple family therapy (MFT) may be an effective intervention for adolescent anorexia nervosa (AN). This study compared the extent of weight restoration for patients enrolled in one year of MFT compared to a matched control group receiving treatment as usual (TAU).A retrospective chart review was performed using data from 25 MFT cases matched to 25 controls on age, diagnosis and year of entry to the eating disorder program.Both cases and controls experienced significant weight restoration, however patients enrolled in MFT were restored to a higher mean percent ideal body weight than the TAU group (99.6% (±7.27%) vs. 95.4 (±6.88); p<0.05).MFT may be more effective than TAU in restoring weight in adolescents with AN.
- Thinspiration: Self-Improvement Versus Self-Evaluation Social Comparisons with Thin-Ideal Media Portrayals. [JOURNAL ARTICLE]
- Health Commun 2014 Oct 15.:1-13.
Much research has demonstrated negative impacts of idealized-body imagery exposure on body satisfaction. Yet, paradoxically, media with such imagery attract mass audiences. Few studies showed women's body satisfaction increased due to thin-ideal exposure. The kind of social comparison women engage in (self-evaluation vs. self-improvement) may explain these inconsistent findings and the paradoxical attraction to thin-ideal messages. Across 5 days, thin-ideal messages were presented to 51 women; self-evaluation and self-improvement social comparisons as well as body satisfaction were measured each day. A linear positive change in body satisfaction emerged. Greater self-improvement social comparisons increased this change, whereas greater self-evaluation social comparisons reduced it. Extent of both social comparison types changed during the prolonged exposure. A greater tendency to compare one's body with others' improved body satisfaction through self-improvement social comparisons and fostered weight-loss behaviors through self-evaluation social comparisons.
- Changes in Eating Attitudes, Body Esteem and Weight Control Behaviours during Adolescence in a South African Cohort. [Journal Article]
- PLoS One 2014; 9(10):e109709.
Failure to consume an adequate diet or over consumption during adolescence can disrupt normal growth and development, resulting in undesirable weight change. This leads to an increase in unhealthy weight control practices related to eating and exercise among both adolescent girls and boys to meet the societal 'ideal' body shape. This study therefore aims to examine the longitudinal changes in eating attitudes, body-esteem and weight control behaviours among adolescents between 13 and 17 years; and, to describe perceptions around body shape at age 17 years. A total of 1435 urban South African black and mixed ancestry boys and girls, who had data at both age 13 and 17 years from the Birth to Twenty cohort were included. Data were collected through self-administered questionnaires on eating attitudes (EAT-26), body esteem and weight control behaviours for either weight loss or muscle gain attempts. Height and weight were measured at both time points and BMI was calculated. Black females had a higher BMI (p<0.001) and an increased risk of developing eating disorders as well as significant increase in the prevalence of weight loss practices between the ages 13 and 17 years. At age 17 years both Mixed ancestry adolescents had lower body-esteem compared to black adolescents. The prevalence of possible eating disorders was 11% and 13.1% in early and late adolescents respectively. Males and females shared similar opinions on normal silhouettes being the 'best', 'getting respect' and being the 'happiest', while the obese silhouette was associated with the 'worst' and the 'unhappiest', and the underweight silhouette with the "weakest". Black females had a higher BMI and an increased risk of developing eating disorders. Adolescent females engaged more in weight loss practices whereas, males in muscle gain practices indicating that Western norms of thinness as the ideal are becoming more common in South Africa.
- The impact of weight changes on nonalcoholic Fatty liver disease in adult men with normal weight. [Journal Article]
- Korean J Fam Med 2014 Sep; 35(5):243-50.
Although it is known that losing weight has an effect on the treatment of non-alcoholic fatty liver disease, the studies that show how losing weight affects the non-alcoholic fatty liver disease for the normal weight male adults are limited so far. In this study, we set body mass index as criteria and investigated how the weight changes for 4 years makes an impact on the risk of non-alcoholic fatty liver disease for the male adults who have the normal body mass index.From January to December of 2004, among the normal weight male adults who had general check-up at the Health Promotion Center of Ulsan University Hospital, 180 people (average age, 47.4 ± 4.61 years) who were diagnosed with fatty liver through abdominal ultrasonography were included in this study and were observed according to the variety of data and ultrasonography after 4 years (2008). People who had a history of drinking more than 140 g of alcohol per week or who had a past medical history were excluded from the analysis. The weight change of subjects was calculated using the formula 'weight change = weight of 2008 (kg) - weight of 2004 (kg)' and classified into three groups, loss group (≤-3.0 kg), stable group (-2.9 to 2.9 kg), and gain group (≥3.0 kg). The odds for disappearance of non-alcoholic fatty liver disease in those three different groups were compared.Among 180 subjects, compared with stable group (67.2%, 121 subjects), loss group (11.7%, 21 subjects) showed 18.37-fold increase in the odds of disappearance of non-alcoholic fatty liver disease (95% confidence interval [CI], 4.34 to 77.80) and gain group (21.1%, 38 subjects) showed 0.28-fold decrease in the odds of disappearance of non-alcoholic fatty liver disease (95% CI, 0.10 to 0.83).Even for the normal weight people, losing weight has an effect on the improvement of non-alcoholic fatty liver disease.
- An aid to drug dosing safety in obese children: development of a new nomogram and comparison with existing methods for estimation of ideal body weight and lean body mass. [JOURNAL ARTICLE]
- Anaesthesia 2014 Oct 7.
The risk of accidental over-dosing of obese children poses challenges to anaesthetists during dose calculations for drugs with serious side-effects, such as analgesics. For many drugs, dosing scalars such as ideal body weight and lean body mass are recommended instead of total body weight during weight-based dose calculations. However, the complex current methods of obtaining these dosing scalars are impractical in the peri-operative setting. Arbitrary dose adjustments and guesswork are, unfortunately, tempting solutions for the time-pressured anaesthetist. The study's aim was to develop and validate an accurate, convenient alternative. A nomogram was created and its performance compared with the standard calculation method by volunteers using measurements from 108 obese children. The nomogram was as accurate (bias 0.12 kg vs -0.41 kg, respectively, p = 0.4), faster (mean (SD) time taken 2.8 (1.0) min (vs 3.3 (0.9) min respectively, p = 0.003) and less likely to result in mistakes (significant errors 3% vs 19%, respectively, p = 0.001). We present a system that simplifies estimation of ideal body weight and lean body mass in obese children, providing foundations for safer drug dose calculation.
- The Vertical Medial Thigh Lift. [REVIEW]
- Clin Plast Surg 2014 Oct; 41(4):727-743.
This article discusses management of the post-weight loss thigh deformity. Beginning with an explanation of the soft tissue variables contributing to the thigh and medial thigh deformity in the postbariatric individual, the article describes the important elements of selecting and screening candidates for surgery and the ideal sequence of procedures that should be followed to optimize results in this patient population. A detailed step-by-step description of the author's technique for medial thigh lift is provided along with multiple examples of outcomes. Aftercare is reviewed along with potential complications and their management.
- The influence of the percentage of the common limb in weight loss and nutritional alterations after laparoscopic gastric bypass. [JOURNAL ARTICLE]
- Surg Obes Relat Dis 2014 Jul 23.
Roux-en-Y gastric bypass (RYGB) is considered the gold standard for the treatment of morbid obesity. There is no consensus over ideal limb length when the bypass is created and published studies do not take into account the influence of the common limb (CL) on weight loss. The objective was to study the influence of the common limb after RYGB. The setting was the Virgen de la Arrixaca University Clinical Hospital in Murcia, Spain.This prospective study includes 151 patients undergoing laparoscopic RYGB surgery for morbid obesity. The patients were divided into 2 groups according to their body mass index. The small intestine (SI) was measured using micro forceps so that the percentage of common limb (%CL) could then be compared against the total SI in each patient. The percentage of excess weight loss (%EWL) in relation to the %CL was calculated at 3, 12, and 24 months. A series of tests was conducted simultaneously to analyze nutritional deficiencies and their relation to the %CL.The total jejunoileal segment and the %CL in the groups of both obese and super-obese patients had no influence on the %EWL in either group for any of the periods studied. The patients with a %CL<50% had greater nutritional deficiencies in the follow-up period and required supplements and more frequent laboratory tests.The %CL has no effect on weight loss in RYGB patients. A lower %CL is related to greater nutritional deficiencies.
- In Vivo Time-Related Evaluation of a Therapeutic Neutralization Monoclonal Antibody against Lethal Enterovirus 71 Infection in a Mouse Model. [JOURNAL ARTICLE]
- PLoS One 2014; 9(10):e109391.
Enterovirus 71 (EV71) is a neurotropic virus capable of inducing severe neurological symptoms and death. No direct targeting antivirals are useful in the treatment of severe EV71 infection. Because of low toxicity and good specificity, monoclonal antibodies (MAb) are a potential candidate for the treatment of viral infections. Therefore, we developed an EV71-specific conformational MAb with high in vitro cross-neutralization activity to heterologous EV71 subgenotypes. The in vivo treatment experiment at different days post-infection indicated that a single treatment of MAb CT11F9 within day 3 post-infection fully protected mice from morbidity and mortality (0% PBS vs. 100% at 10 µg/g per body weight ***P<0.0001). Immunohistochemical and histological analysis confirmed that CT11F9 significantly prohibited EV71 VP1 expression in various tissues and prevented EV71-induced myonecrosis. Moreover, thrice-treatment at day 4, 5, 6 post-infection was associated with an increased survival rate (18.2% single vs. 50% thrice at 20 µg/g per body weight), and the mice recovered from limb paralysis. Competitive ELISA also confirmed that CT11F9-recognized epitopes were immunodominant in humans. In conclusion, MAb CT11F9 is an ideal candidate to be humanized and used in severe EV71 infection.