Brazilian instrument for assessing of eating disorders in children and adolescents.

OBJECTIVE: This study aimed to develop the Brazilian instrument for assessing eating disorders in children and adolescents and test its psychometric quality using item response theory (IRT). DESIGN: Cross-sectional study. PARTICIPANTS: Participants aged between five and twelve years old of both sexes. MAIN MEASURES: IRT logistic model of two parameters was used to evaluate the item's severity and discrimination and test information curve of symptoms of eating disorders' latent trait symptoms. Content validity and reliability were also assessed. The IRT evaluation suggested that the instrument contained items that performed differently concerning severity, discrimination, and test information curve presented good accuracy. RESULTS: There was agreement on the clarity of language (83.3%) and theoretical relevance (91.7%), indicating good content validity. The value of the Cronbach's Alpha was 0.63 (95% confidence interval), and the result of the Spearman-Brown test was 0.65. CONCLUSION: These results indicate good performance of the screening tool in assessing the level of eating disorders in children and adolescents.

Influence of overweight and obesity on perinatal outcomes in assisted reproduction: a retrospective cohort study.

BACKGROUND: In spontaneous pregnancies, maternal weight and gestational diabetes are independent risk factors for macrosomia and large-for-gestational-age newborns. Furthermore, maternal body mass index (BMI) of ≥25 kg/m2 is associated with worse neonatal vitality, classified as an Apgar score of < 7 at the fifth minute of life. However, few studies have evaluated the influence of BMI on perinatal outcomes in pregnancies resulting from assisted reproduction. Therefore, this study aimed to analyze whether the perinatal outcomes of assisted reproduction are influenced by BMI. METHODS: This was a retrospective cohort study performed at a reproductive medicine center. Patients undergoing assisted reproduction (2013-2020) were divided into three groups according to their BMI (kg/m2): group 1, < 25; group 2, 25-29.9, and group 3, ≥30. In total, 1753 in vitro fertilization embryo transfer cycles were analyzed. Data were expressed as mean ± standard deviation or frequency (%). The analysis of variance and chi-square test were performed for comparison. To determine the participants and number of cycles for these analyses, generalized estimating equations were used, considering p < 0.05. RESULTS: In groups 1, 2, and 3, the rates of live birth were 33.5, 32.3, and 29.9% (p = 0.668); preeclampsia were 2.9, 6.1, and 6.3% (p = 0.268); small-for-gestational-age newborns were 23, 23.2, and 21.7% (p = 0.965); macrosomia were 1.9, 0.9, and 2.7% (p = 0.708); Apgar score > 7 at the fifth minute were 97.6, 98.2, and 100% (p = 0.616); and preterm birth were 29.6, 30.1, and 35.1% (p = 0.970), respectively. CONCLUSIONS: In conclusion, although the three groups had similar perinatal outcomes in this study, the study population was too small for conclusive results. The higher the BMI, the lower the chances of clinically relevant LBR and the higher the chances of premature labor and preeclampsia.

The impact of body mass index on laboratory, clinical outcomes and treatment costs in assisted reproduction: a retrospective cohort study.

BACKGROUND: The aim of this study was to evaluate the influence of the body mass index (BMI) on laboratory, clinical outcomes and treatment costs of assisted reproduction, as there are still controversial and inconclusive studies on this subject. METHODS: This research was retrospective cohort study, including women undergoing assisted reproduction in a Reproductive Medicine Center between 2013 and 2020. The participants were divided into groups according to BMI (kg/m2): Group 1 < 25; Group 2, 25-29.9 and Group 3, ≥ 30. A total of 1753 in vitro fertilization (IVF) fresh embryo transfer (ET) cycles were included for assisted reproduction outcomes analysis and 1869 IVF-ET plus frozen embryo transfer (FET) for cumulative pregnancy analysis. RESULTS: As higher the BMI, higher was the proportion of canceled IVF cycles (G1 (6.9%) vs. G2 (7.8%) vs. G3 (10.4%), p = 0.002) and gonadotropin's total dose (IU) and treatment costs (G1 (1685 ± 595, U$ 683,02) vs. G2 (1779 ± 610, U$ 721,13) vs. G3 (1805 ± 563, U$ 764,09), p = 0.001). A greater number of mature oocytes was observed in G1 and G2 (6 [6.4-7.0] vs. 6 [5.6-6.6] vs. 4 [4.6-6.7], p = 0.011), which was not found in oocyte maturity rate (p = 0.877). A significant linear tendency (p = 0.042) was found in cumulative pregnancy rates, pointing to worse clinical outcomes in overweight and obese patients. CONCLUSION: These findings highlight the importance of considering the higher treatment costs for these patients, beyond all the well-known risks regarding weight excess, fertility, and pregnancy, before starting IVF treatments.

Accuracy of prognostic serological biomarkers in predicting liver fibrosis severity in people with metabolic dysfunction-associated steatotic liver disease: a meta-analysis of over 40,000 participants.

Introduction: A prognostic model to predict liver severity in people with metabolic dysfunction-associated steatotic liver disease (MASLD) is very important, but the accuracy of the most commonly used tools is not yet well established. Objective: The meta-analysis aimed to assess the accuracy of different prognostic serological biomarkers in predicting liver fibrosis severity in people with MASLD. Methods: Adults ≥18 years of age with MASLD were included, with the following: liver biopsy and aspartate aminotransferase-to-platelet ratio (APRI), fibrosis index-4 (FIB-4), non-alcoholic fatty liver disease fibrosis score (NFS), body mass index, aspartate aminotransferase/alanine aminotransferase ratio, diabetes score (BARD score), FibroMeter, FibroTest, enhanced liver fibrosis (ELF), Forns score, and Hepascore. Meta-analyses were performed using a random effects model based on the DerSimonian and Laird methods. The study's risk of bias was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2. Results: In total, 138 articles were included, of which 86 studies with 46,514 participants met the criteria for the meta-analysis. The results for the summary area under the receiver operating characteristic (sAUROC) curve, according to the prognostic models, were as follows: APRI: advanced fibrosis (AF): 0.78, any fibrosis (AnF): 0.76, significant fibrosis (SF): 0.76, cirrhosis: 0.72; FIB-4: cirrhosis: 0.83, AF: 0.81, AnF: 0.77, SF: 0.75; NFS: SF: 0.81, AF: 0.81, AnF: 0.71, cirrhosis: 0.69; BARD score: SF: 0.77, AF: 0.73; FibroMeter: SF: 0.88, AF: 0.84; FibroTest: SF: 0.86, AF: 0.78; and ELF: AF: 0.87. Conclusion: The results of this meta-analysis suggest that, when comparing the scores of serological biomarkers with liver biopsies, the following models showed better diagnostic accuracy in predicting liver fibrosis severity in people with MASLD: FIB-4 for any fibrosis, FibroMeter for significant fibrosis, ELF for advanced fibrosis, and FIB-4 for cirrhosis.Clinical trial registration: [https://clinicaltrials.gov/], identifier [CRD 42020180525].

Use of a gamma probe to identify and guide resection of recurrent parathyroid carcinoma: report of a case.

Parathyroid carcinoma (PC) accounts for less than 0.005% of all cancers and less than 5% of causes of hyperparathyroidism. This tumor is difficult to identify during surgery, which is detrimental to the oncologic results. Surgery is still the main treatment for the primary tumor and to control parathyroid hormone levels after recurrence. We report a case of recurrent parathyroid carcinoma in a 30-year-old man, identified and managed with the use of a gamma probe during surgery. To our knowledge, this is only the second report of a gamma probe being used to guide resection of a recurrent PC. We discuss the diagnosis and treatment, analyzing the current evidence-based literature.

Vitamin B12 supplementation orally and intramuscularly in people with obesity undergoing gastric bypass.

PURPOSE: Although bariatric surgery can facilitate weight loss and improve many diseases, it impairs the absorption of many vitamins and micronutrients. Vitamin B12 is important for these patients and should be controlled and supplemented postoperatively. The aim of this paper is to compare serum vitamin B12 levels in two forms of supplementation (oral vs. intramuscular) for 6 months after gastric bypass. METHODS: In a prospective controlled cohort study, people with obesity patients undergoing gastric bypass received vitamin B12 supplementation either orally or intramuscularly. The patients were followed for 6 months, receiving serial doses of vitamin B12 and methylmalonic acid assessment at 6 months. RESULTS: A total of 53 patients were divided into two homogeneous groups: an oral group (n=24) and an intramuscular group (n=29). Serum vitamin B12 was measured preoperatively and postoperatively at 1, 2, 3, and 6 months. Serum methylmalonic acid was measured at 6 months. At each point, the serum vitamin B12 level remained within reference values in both groups, although it was higher in the oral group (p<0.001). Methylmalonic acid also remained within reference values in both groups, with no significant differences. CONCLUSION: Despite the anatomical and functional alterations that impair vitamin B12 absorption after gastric bypass, oral vitamin B12 supplementation was as effective as intramuscular in this population.

Intestinal obstruction following gastric bypass.

PURPOSE: To draw the attention of the medical community to a differential diagnosis of intestinal obstruction due to bezoar in the late postoperative period of gastric bypass that requires diagnosis and emergency management. METHODS: We report 8 cases of patients with intestinal obstruction due to bezoar in the late postoperative period of gastric bypass who required surgical intervention. CONCLUSION: Intestinal obstruction due to fruit pomace is a late complication that may require urgent surgical intervention and should be considered in the differential diagnosis.

Bariatric patient's body composition: An option to BMI?

BACKGROUND: Bariatric surgery is one of the best treatments for obesity. This indication includes an evaluation of body mass index (BMI) that does not consider the body composition of an individual. AIM: To determine the body composition of bariatric surgery candidates. METHODS: Patients treated at a tertiary care centre for obesity were evaluated. Body composition was measured by bioelectrical impedance analysis (BIA). All measures of BIA and surgical indication were analysed. RESULTS: We evaluated 407 subjects, 87 (21.4%) men, with a mean age of 36 years. In men with indications for bariatric surgery, the mean ± SD body fat percentage (%BF) was 45.1 ± 5.39%, and the mean ± SD visceral fat area was 243.6 ± 33.79 cm2. In women with indications for bariatric surgery, the mean ± SD %BF was 50.7 ± 3.3%, and the mean ± SD visceral fat area was 241.7 ± 24.77 cm2. CONCLUSION: This study showed different body compositions between men and women and parameters of %BF and visceral fat area evaluated by BIA.

ARE OBESITY AND ADENOMA DEVELOPMENT ASSOCIATED AS COLORECTAL CANCER PRECURSORS?

BACKGROUND: One of the most important concerns on health is the increased rates of obesity in population and the speed in which this number is increasing. This number translates a serious public health problem, since it also increases the risk of several other diseases associated with obesity resulting in significant morbidity and mortality. Among them, it seems to be connected to several neoplasms, such as colorectal carcinoma. AIM: To evaluate the impact of obesity as a risk factor for colorectal carcinoma through the detection of adenoma, and to discuss the mechanisms that could establish a link between obesity and neoplasm. METHODS: Patients who underwent colonoscopy were included. Personal and anthropometric data, clinical history, and results of the tests were analyzed in order to verify the correlation of BMI and the presence of adenomatous polyps. RESULTS: A total of 142 patients were studied, which a mean age of 62 years. Of the patients, 74 (52.1%) were men and 68 (47.9%) were. Obesity was identified in 16.2% of the patients. Polyps were found in 61 (42.9%), mostly smaller than 1 cm. Obese individuals were 1.56 times more likely to present colorectal adenoma than patients with normal weight. CONCLUSION: This study, although showing the greater presence of colorectal adenomas in obese individuals, did not show a significant difference in the occurrence of pre-malignant lesions.

Carcinoid tumors and morbid obesity.

Carcinoid is a rare gastrointestinal tumor, with an incidence varying from 1 to 2.5 per 100,000 in the general population. In this article, we report an elevated incidence of carcinoid tumor in an obese population, showing the importance of performing an endoscopic procedure before bariatric surgery.

Urinary Incontinence and Surgery for Obesity and Weight-Related Diseases: Are There Predictors of Improvement?

PURPOSE: The aim of this study was to evaluate changes in urinary incontinence (UI) before and after surgery for obesity in female patients and to identify factors related to the remission of symptoms. MATERIALS AND METHODS: This was a prospective cohort study with female patients over 18 years old who underwent surgery for obesity and weight-related diseases between June 2016 and September 2017. Urinary symptoms and quality of life related to UI were assessed based on a structured interview and the results of the validated questionnaires. RESULTS: Two hundred twenty-one patients were assessed pre-operatively, and 118 (53.3%) reported UI. Eighty-eight patients (74.6%) completed the pre- and postoperative questionnaires. After 6 to 12 months, patients were revaluated, and 50 (56.8%) were considered to be in remission of urinary symptoms. Women who had only a cesarean birth had a 117% increase in the probability of achieving remission of UI compared with women who had both vaginal and cesarean deliveries, and patients with an additional point in the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) score at the beginning had a 4% lower probability of having remission of symptoms. CONCLUSIONS: Improvement in UI may be an important outcome of surgery for obesity and weight-related diseases. In this study, previous cesarean section was only associated with the highest rate of remission of symptoms, and patients with higher scores in the ICIQ-UI-SF had a lower probability of remission.

Assessment of Changes in Body Composition During the First Postoperative Year After Bariatric Surgery.

BACKGROUND: The potential effect of bariatric surgery on weight reduction and improvement of associated comorbidities is known, but the ratio obtained between the components of body weight, including lean body mass, body fat mass, and bone mass, is still not determined. This study aims to verify the changes in body composition during the first year after bariatric surgery. METHODS: We conducted a prospective observational cohort study. Fifty patients who underwent bariatric surgery and maintained follow-ups were selected. Patients were assessed preoperatively and postoperatively for periods of 1, 3, 6, and 12 months using tetrapolar bioelectrical impedance analysis and laboratory testing of lipids and serum albumin levels. Data were statistically analyzed. RESULTS: Statistically significant differences (p < 0.001) were obtained between the preoperative and 12-month evaluation respectively, for body mass index (BMI) (45.8 ± 7.5 to 30.0 ± 4.8 kg/m2), FM (64.7 ± 15.5 to 30.6 ± 9.8 kg), PFM (51.6 ± 4.17 to 37.3 ± 7.6%), and total cholesterol levels (197.1 ± 49.8 to 169.8 ± 31.0 mg/dL). The decrease in PFM shows a better proportion between the body components. PFM showed significantly higher decrease in males than in females (p = 0.012). Lean body mass (p = 0.000) reduction was highest for patients operated by the Unified Health System (SUS, Government of Brazil) probably because of its few financial resources to maintain postoperative care. CONCLUSION: The change in body composition of patients who underwent Roux-en-Y gastric bypass was statistically significant for all variables examined during the first year postoperatively. This shows the effectiveness of the surgical procedure and clinical protocol set, which tends to favor a better health prognosis and weight maintenance in the long term.

Association between phase angle from bioelectrical impedance analysis and level of physical activity: Systematic review and meta-analysis.

OBJECTIVE: To evaluate the relationship between physical activity and phase angle. DESIGN: Systematic Review and Meta-analysis. DATA SOURCES: Electronic searches of MEDLINE (via PUBMED), EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library), SciELO, LILACS, SPORTDiscus, Scopus, and Web of Science from inception to December 10th, 2017. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: The PICOS strategy was defined, in which "P" corresponded to participants of any age, sex or ethnicity, "I" indicated any type of physical activity program, "C" denoted lack of exercise or irregular physical activity, "O" corresponded to the phase angle obtained by bio-impedance, and "S" indicated longitudinal or cross-sectional studies. RESULTS: In cross-sectional studies the phase angle was higher among the active individuals (MD = 0.70; 95% CI: 0.48, 0.92, P < 0.001), with low heterogeneity (I2 = 0%; P = 0.619). In longitudinal studies, the mean of the difference of phase angles from the baseline was significantly higher for the active group than the control group (MD = 0.30; 95% CI: 0.11, 0.49, P = 0.001), with low heterogeneity (I2 = 13%, P = 0.331). No evidence of publication bias was found and the overall risk of bias was moderate to high. SUMMARY/CONCLUSION: The positive association of physical activity with phase angle reinforces the importance of routinely including exercise in health care. We also identified the need for further studies to define with different types, intensities and frequencies of exercises should be conducted in order to find the best dose-effect relationship.

Gastric carcinoid tumor--incidental finding on endoscopy prior to bariatric surgery.

A 32-year-old female patient with morbid obesity (body mass index 44.4) was submitted to upper digestive endoscopy performed routinely as a preoperative procedure in bariatric surgery. The examination identified multiple small polypoid lesions in the upper portion of the gastric body, some with small ulcerations. Anatomo-pathological findings were compatible with carcinoid tumor of the stomach. The patient was submitted to extended subtotal gastrectomy with loco-regional lymphadenectomy. Upper digestive endoscopy is performed routinely in some services for bariatric surgery, but its value has been questioned by some authors. In this case, endoscopic examination was of great importance, being responsible for a change in the surgical procedure. We did not find any report in the literature of a carcinoid tumor of the stomach in morbidly obese patients.

Serum S100B but not NSE levels are increased in morbidly obese individuals affected by obstructive sleep apnea-hypopnea syndrome.

BACKGROUND: Obstructive sleep apnea-hypopnea syndrome (OSAHS) is considered a comorbidity associated with morbid obesity, mainly because of the large neck circumference. Depending on its severity, OSAHS can interfere in many homeostasis systems, for example, the central nervous system (CNS). Neuron-specific enolase (NSE) and S100B protein derived from astrocytes are considered sensitive biochemical markers of cerebral injury. We evaluated serum S100B and NSE levels in this study with the aim of detecting possible cerebral injury as a consequence of OSAHS. METHODS: This was a transverse study with data from 25 morbidly obese patients with OSAHS. Blood samples were collected before and after polysomnography (PSG) to determine S100B and NSE protein levels. We also analyzed data evaluating depression and excessive daytime sleepiness. RESULTS: S100B levels were higher after [0.029 (0.010-0.199) mg/l] compared to before [0.010 (0.010-0.025) mg/l] on PSG (P = 0.002). S100B levels were expressed as means and IQ25-IQ75. NSE levels did not show significant differences before and after PSG. CONCLUSION: Our study shows a significant increase in S100B level after PSG compared to before. This suggests that there is a CNS astrocyte reaction because of possible cerebral hypoxemia in morbidly obese patients with OSAHS.

Laparoscopic sleeve gastrectomy with NOTES visualization--a step toward NOTES procedures.

BACKGROUND: To demonstrate that bariatric procedures can be done with natural orifice visualization (NOTES) at 2 institutions (Nucleo Universitario de Estudos de Notes Centro de Cirurgia Experimental Vila do Conde-Junqueira, Vila do Conde, Portugal and Pontificia Universidade Catolica do Rio Grande do Sul, Porto Alegre, RS, Brasil). NOTES is a new surgical approach that is being developed. It consists of the use of a minimally invasive technique in which the surgical procedure is performed through natural orifices, thereby circumventing incisions through the skin. METHODS: We performed vertical gastrectomy or laparoscopic sleeve gastrectomy in a porcine model using vaginal route visualization. RESULTS: A laparoscopic vertical sleeve gastrectomy with NOTES visualization in a porcine model was performed with safety. CONCLUSION: Bariatric procedures can be done with NOTES with results as good as those using laparoscopic techniques.

Urinary Incontinence and Quality of Life in Female Patients with Obesity.

OBJECTIVE: To analyze the prevalence of urinary incontinence (UI) in female patients with an indication for bariatric surgery, to investigate the potential risk factors and the impact on quality of life. METHODS: A cross-sectional study with female patients with obesity. The evaluation consisted of a structured interview, a specific study form and quality of life questionnaires. The Poisson regression was performed to identify independent risk factors related to UI. RESULTS: A total of 221 patients were enrolled; 118 of the study participants (53.4%) reported UI episodes. Mixed UI (MUI), stress UI (SUI) only, and urgency UI (UUI) only were reported by 52.5% (62), 33.9% (40) , and 13.5% (16) of these patients respectively. The prevalence of UI was increased by 47% among the women who had given birth vaginally and by 34% of the women who had entered menopause. Vaginal delivery and menopause were identified as independent risk factors related to UI. The mean International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF) score was 9.36 ± 4.9. The severity of symptoms was considered moderate in 53.3% (63) of the patients with UI. CONCLUSION: Urinary incontinence impacts quality of life negatively, and the prevalence of UI is high among obese patients. In the present study, vaginal delivery and menopause were independently associated with UI.

OBJETIVO: Analisar a prevalência de incontinência urinária (IU), os fatores de risco e o impacto na qualidade de vida em pacientes femininas com indicação para realização de cirurgia bariátrica. MéTODOS: Estudo transversal com pacientes femininas obesas. A avaliação consistiu em entrevista estruturada, com questionários de estudo específico e de qualidade de vida. A regressão de Poisson foi utilizada para identificar os fatores de risco independentes para IU. RESULTADOS: Um total de 221 pacientes foram incluídos; 118 participantes (53.4%) relataram episódios de IU. Incontinência urinária mista, IU de esforço e IU de urgência foram relatadas por 52.5% (62), 33.9% (40) e 13.5%(16) das pacientes, respectivamente. A prevalência de IU foi 47% maior em mulheres que tiveram parto vaginal, e 34% maior em mulheres que já entraram no período da menopausa. Parto vaginal e menopausa foram identificados como fatores de risco independentes para IU. A média da pontuação do International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF) foi de 9.36 ± 4.9. A severidade dos sintomas foi considerada moderada em 53.3% (63) das pacientes com IU. CONCLUSãO: A IU impacta negativamente a qualidade de vida, e a prevalência de IU é maior em pacientes obesas. Neste estudo, parto vaginal e menopausa foram fatores de risco independentes para a ocorrência de IU.

PROGNOSTIC VALUE OF CARCINOEMBRYONIC ANTIGEN LEVELS IN TRANSOPERATIVE PERITONEAL LAVAGE IN PATIENTS WITH GASTRIC CANCER.

BACKGROUND: The carcinoembryonic antigen level in peritoneal lavage has been showing to be a reliable prognostic factor in gastric cancer. AIM: To identify any association between carcinoembryonic antigen level in peritoneal lavage, in gastric cancer patients, with mortality, peritoneal recurrence, tumor relapse or other prognostic factors. METHODS: In total, 30 patients (22 men, 8 women; median age 66 years) with resectable gastric cancer (mainly stage III and IV) were studied. Carcinoembryonic antigen level in peritoneal lavage was detected at operation by immunocytochemical method and a level over 210 ng/g of protein was considered as positive. RESULTS: There were detected 10 positive cases (33.3%) of plCEA levels. These levels were associated with mortality, RR: 2.1 (p=0.018); peritoneal recurrence, OR: 9.0 (p=0.015); and relapse or gastric cancer progression, OR: 27.0 (p=0.001). CONCLUSION: Increased levels of plCEA fairly predicts mortality, peritoneal recurrence tumor relapse or cancer progression.

Impacto de fatores psicológicos no fracasso da cirurgia bariátrica / Impact of psychological factors on the failure of bariatric surgery / Impacto de factores psicológicos en el fallo de la cirugía bariátrico

Cirurgia bariátrica é um tratamento eficaz para obesidade mórbida. Alguns fatores psicológicos podem impactar no resultado pós-operatório relacionado à perda de peso. Investigar a influência das expectativas e as motivações pré-operatórias, assim como a presença de outros transtornos psicológicos que têm potencial de estarem ligados ao desfecho desfavorável foi o objetivo desta pesquisa. Este estudo caso-controle retrospectivo considerou 44 casos de fracasso para 88 controles de sucesso em uma amostra randomizada de pacientes operados em um serviço de referência de um hospital escola. Os resultados revelaram que expectativas relacionadas à diminuição do preconceito social e à melhoria da capacidade e condições de trabalho estão associadas à resposta insatisfatória na perda do excesso de peso esperada neste procedimento cirúrgico. Falhas em tratamentos prévios para controle da obesidade foram apontadas como indicador favorável relacionado ao sucesso na perda de peso pós-cirurgia. E não houve associação de outros transtornos psicológicos com o resultado de fracasso

Bariatric surgery is an alternative for morbid obesity treatment. Some factors can impact the postoperative results related to weight loss. The objective of this research was to unveil the influence of preoperative expectations that have the potential to be linked to the unfavorable outcome. This retrospective, case-control study considered 44 cases of failure for 88 success controls in a randomized sample of patients operated on in a Brazilian School Hospital. The results revealed that expectations related to the reduction of social prejudice and the improvement of work capacity and conditions are associated with an unsatisfactory response to the expected excess weight loss in this surgical procedure. Failures in previous treatments for obesity control were identifi ed as a favorable indicator related to success in weight loss after surgery. And there was no association of other psychological disorders with the result of failure

Cirugía bariátrica es una alternativa para el tratamiento de la obesidad mórbida. Algunos factores pueden afectar el resultado postoperatorio relacionado con la pérdida de peso. El objetivo de esta investigación fue revelar la influencia de las expectativas preoperatorias que tienen el potencial de estar vinculadas al resultado desfavorable. Este estudio retrospectivo de casos y controles consideró 44 casos de fracaso para 88 controles de éxito en una muestra aleatoria de pacientes operados en un hospital escolar brasileño. Los resultados revelaron que las expectativas relacionadas con la reducción de los prejuicios sociales y la mejora de la capacidad y las condiciones laborales se asocian con una respuesta insatisfactoria al exceso de pérdida de peso esperado en este procedimiento quirúrgico. Los fracasos en tratamientos previos para el control de la obesidad se identificaron como un indicador favorable relacionado con el éxito en la pérdida de peso después de la cirugía. Y no hubo asociación de otros trastornos psicológicos con el resultado del fracaso

TRF1 as a major contributor for telomeres' shortening in the context of obesity.

Obesity is a prevalent multifactorial chronic disorder characterized by metabolic dysregulation. Sustained pro-oxidative mediators trigger harmful consequences that reflect at systemic level and contribute for the establishment of a premature senescent phenotype associated with macromolecular damage (DNA, protein, and lipids). Telomeres are structures that protect chromosome ends and are associated with a six-protein complex called the shelterin complex and subject to regulation. Under pro-oxidant conditions, telomere attrition and the altered expression of the shelterin proteins are central for the establishment of many pathophysiological conditions such as obesity. Thus, considering that individuals with obesity display a systemic oxidative stress profile that may compromise the telomeres length or its regulation, the aim of this study was to investigate telomere homeostasis in patients with obesity and explore broad/systemic associations with the expression of shelterin genes and the plasma redox state. We performed a cross-sectional study in 39 patients with obesity and 27 eutrophic subjects. Telomere length (T/S ratio) and gene expression of shelterin components were performed in peripheral blood mononuclear cells by qPCR. The oxidative damage (lipid peroxidation and protein carbonylation) and non-enzymatic antioxidant system (total radical-trapping antioxidant potential/reactivity, sulfhydryl and GSH content) were evaluated in plasma. Our results demonstrate that independently of comorbidities, individuals with obesity had significantly shorter telomeres, augmented expression of negative regulators of the shelterin complex, increased lipid peroxidation and higher oxidized protein levels associated with increased non-enzymatic antioxidant defenses. Principal component analysis revealed TRF1 as a major contributor for firstly telomeres shortening. In conclusion, our study is first showing a comprehensive analysis of telomeres in the context of obesity, associated with dysregulation of the shelterin components that was partially explained by TRF1 upregulation that could not be reversed by the observed adaptive non-enzymatic antioxidant response.