Systemic benefits of periodontal therapy in patients with obesity and periodontitis: a systematic review.

This systematic review aimed to answer the focused question: "What are the benefits of subgingival periodontal therapy on blood hematological and biochemical index, biomarkers of inflammation and oxidative stress, quality of life, and periodontal pathogen counts in patients with obesity and periodontitis?". A systematic literature search was performed in six databases: PubMed, Embase, LILACS, Web of Science, Cochrane and SCOPUS and other sources, and a manual search was conducted as well. Inclusion criteria were randomized and non-randomized clinical trials, and before-and-after studies on patients with obesity subjected to periodontal therapy. The results were synthesized qualitatively. Risk of bias within studies was assessed using RoB 2 and ROBINS-I tools. The certainty of evidence was evaluated following the GRADE approach. Three randomized controlled trials and 15 before-and-after studies were included. Randomized controlled trials were considered to have a low risk of bias, as compared to before-and-after studies assessed as having low, serious, and critical risks of bias. Non-surgical periodontal therapy plus azithromycin, chlorhexidine, and cetylpyridinium chloride reduced blood pressure and decreased serum levels of HbA1c, hsCRP, IL-1ß, and TNF-α. Salivary resistin level also decreased in patients with obesity and periodontitis after therapy and chlorhexidine mouth rinse. Before-and-after data suggest an improvement in total cholesterol, LDL, triglycerides, insulin resistance, C3, GCF levels of TNF-α, chemerin, vaspin, omentin-1, visfatin, 8-OHdG, and periodontal pathogen counts after therapy.

Systemic benefits of periodontal therapy in patients with obesity and periodontitis: a systematic review

Abstract This systematic review aimed to answer the focused question: "What are the benefits of subgingival periodontal therapy on blood hematological and biochemical index, biomarkers of inflammation and oxidative stress, quality of life, and periodontal pathogen counts in patients with obesity and periodontitis?". A systematic literature search was performed in six databases: PubMed, Embase, LILACS, Web of Science, Cochrane and SCOPUS and other sources, and a manual search was conducted as well. Inclusion criteria were randomized and non-randomized clinical trials, and before-and-after studies on patients with obesity subjected to periodontal therapy. The results were synthesized qualitatively. Risk of bias within studies was assessed using RoB 2 and ROBINS-I tools. The certainty of evidence was evaluated following the GRADE approach. Three randomized controlled trials and 15 before-and-after studies were included. Randomized controlled trials were considered to have a low risk of bias, as compared to before-and-after studies assessed as having low, serious, and critical risks of bias. Non-surgical periodontal therapy plus azithromycin, chlorhexidine, and cetylpyridinium chloride reduced blood pressure and decreased serum levels of HbA1c, hsCRP, IL-1β, and TNF-α. Salivary resistin level also decreased in patients with obesity and periodontitis after therapy and chlorhexidine mouth rinse. Before-and-after data suggest an improvement in total cholesterol, LDL, triglycerides, insulin resistance, C3, GCF levels of TNF-α, chemerin, vaspin, omentin-1, visfatin, 8-OHdG, and periodontal pathogen counts after therapy.

SH2B1 variants as potential causes of non-syndromic monogenic obesity in a Brazilian cohort.

PURPOSE: SH2B1 gene encodes an important adaptor protein to receptor tyrosine kinases or cytokine receptors associated with Janus kinases. This gene has been associated with the structural and functional modulation of neurons and other cells, and impacts on energy and glucose homeostasis. Several studies suggested that alterations in this gene are strong candidates for the development of obesity. However, only a few studies have screened SH2B1 point variants in individuals with obesity. Therefore, the aim of this study was to investigate the prevalence of SH2B1 variants in a Brazilian cohort of patients with severe obesity and candidates to bariatric surgery. METHODS: The cohort comprised 122 individuals with severe obesity, who developed this phenotype during childhood. As controls, 100 normal-weight individuals were included. The coding region of SH2B1 gene was screened by Sanger sequencing. RESULTS: A total of eight variants were identified in SH2B1, of which p.(Val345Met) and p.(Arg630Gln) variants were rare and predicted as potentially pathogenic by the in the silico algorithms used in this study. The p.(Val345Met) was not found in either the control group or in publicly available databases. This variant was identified in a female patient with severe obesity, metabolic syndrome and hyperglycemia. The p.(Arg630Gln) was also absent in our control group, but it was reported in gnomAD with an extremely low frequency. This variant was observed in a female patient with morbid obesity, metabolic syndrome, hypertension and severe binge-eating disorder. CONCLUSION: Our study reported for the first time two rare and potentially pathogenic variants in Brazilian patients with severe obesity. Further functional studies will be necessary to confirm and elucidate the impact of these variants on SH2B1 protein function and stability, and their impact on energetic metabolism. LEVEL OF EVIDENCE: Level V, cross-sectional descriptive study.

Reference Equation for the Six-Minute Walk Test in Brazilian Patients with Obesity

Abstract Background: Obesity has repercussions on functional capacity (FC). The six-minute walk test (6MWT) is a useful tool for assessing submaximal FC, and the distance reached at 6 minutes of walking (D6MW) is a relevant prognostic marker. Objective: This paper aims to establish a reference equation for the distance predicted in 6MWT in obese Brazilian subjects. Methods: This study included 460 patients (306 women), with a body mass index (BMI) > 30 kg/m2, 71% (328) of whom presented a grade III obesity (BMI ≥ 40 Kg/m²) and were evaluated with 6MWT. Heart rate, blood pressure, oxygen saturation and Borg scale perception of effort were recorded before and after the 6MWT. For statistical analysis, Kolmogorov-Smirnov tests, an unpaired T-Test, Pearson's correlation, and multiple linear regression were used, together with a significance level set at p<0.05. Results: Gender, age, and BMI were significantly correlated with D6MW and were identified by multiple linear regression as the best predictors of the D6MW. Together, they explain 48.7% of the D6MW variance for obese Brazilian subjects. Based on these findings, an equation was proposed - D6MW = 930.138 + (27.130 x Genderfemales = 0; males = 1) − (5.550 x BMI kg/m2) − (4.442 x Age years). When the average of the D6MW obtained with the above equation was compared to the average calculated with the equations described in medical literature for healthy and obese individuals, the latter tended to overestimate the D6MW. Conclusion: The proposed reference equation exhibited better assessment of FC in obese Brazilian patients, providing proper subsidies for the follow up ofinterventions in this population..

Association of the MC4R rs17782313 polymorphism with plasma ghrelin, leptin, IL6 and TNFα concentrations, food intake and eating behaviors in morbidly obese women.

PURPOSE: The rs17782313 variant of the MC4R gene plays an important role in the obesity phenotype. Studies that evaluate environmental factors and genetic variants associated with obesity may represent a great advance in understanding the development of this disease. This work seeks to assess the association of the polymorphism of MC4R rs17782313 on plasma parameters, including leptin, ghrelin, tumor necrosis factor (TNFα) and interleukin 6 (IL6), and on the eating behaviors of morbidly obese women. METHODS: 70 adult women with BMI between 40 and 60 kg/m2 were recruited. Laboratory and anthropometric data were recorded. Using a visual analog scale (VAS), the feelings of hunger and satiety were evaluated. The presence or absence of binge eating was evaluated through the Binge Eating Scale (BES) questionnaire. Habitual food intake was analyzed using 3-day dietary records. TaqMan® assays were conducted using real-time PCR to assess genotype polymorphism variants from peripheral blood DNA. RESULTS: This study found that female patients with the MC4R rs17782313 polymorphism had high levels of ghrelin and reduced levels of IL6 in the postprandial period. We observed a higher prevalence of severe binge eating in more than 50% of women with at least one risk allele. CONCLUSION: Our hypothesis is that the MC4R rs17782313 polymorphism may influence the release of ghrelin, even without being associated with feelings of hunger and satiety. More than half of women with this polymorphism exhibited severe binge eating. LEVEL OF EVIDENCE: Level III: case-control analytic study.

Study of LEP, MRAP2 and POMC genes as potential causes of severe obesity in Brazilian patients.

PURPOSE: Monogenic forms of obesity are caused by single-gene variants which affect the energy homeostasis by increasing food intake and decreasing energy expenditure. Most of these variants result from disruption of the leptin-melanocortin signaling, which can cause severe early-onset obesity and hyperphagia. These mutation have been identified in genes encoding essential proteins to this pathway, including leptin (LEP), melanocortin 2 receptor accessory proteins 2 (MRAP2) and proopiomelanocortin (POMC). We aimed to investigate the prevalence of LEP, MRAP2 and POMC rare variants in severely obese adults, who developed obesity during childhood. To the best of our knowledge, this is the first study screening rare variants of these genes in patients from Brazil. METHODS: A total of 122 Brazilian severely obese patients (BMI ≥ 35 kg/m2) were screened for the coding regions of LEP, MRAP2 and POMC by Sanger sequencing. All patients are candidates to the bariatric surgery. Clinical characteristics were described in patients with novel and/or potentially pathogenic variants. RESULTS: Sixteen different variants were identified in these genes, of which two were novel. Among them, one previous variant with potentially deleterious effect in MRAP2 (p.Arg125Cys) was found. In addition, two heterozygous mutations in POMC (p.Phe87Leu and p.Arg90Leu) were predicted to impair protein function. We also observed a POMC homozygous 9 bp insertion (p.Gly99_Ala100insSerSerGly) in three patients. No pathogenic variant was observed in LEP. CONCLUSION: Our study described for the first time the prevalence of rare potentially pathogenic MRAP2 and POMC variants in a cohort of Brazilian severely obese adults. LEVEL OF EVIDENCE: Level V, cross-sectional descriptive study.

Identification of a Rare and Potential Pathogenic MC4R Variant in a Brazilian Patient With Adulthood-Onset Severe Obesity.

BACKGROUND: The melanocortinergic pathway orchestrates the energy homeostasis and impairments in this system often lead to an increase in body weight. Rare variants in the melanocortin 4 receptor (MC4R) gene resulting in partial or complete loss of function have been described with autosomal co-dominant inheritance. These mutations are the most common cause of non-syndromic monogenic obesity. In this context, this study aimed to sequence the MC4R gene in a Brazilian cohort of adults with severe obesity. METHODS: This study included 163 unrelated probands with Body Mass Index (BMI) ≥ 35 kg/m2, stratified into three groups, according to the period of obesity onset. From the total sample, 25 patients were enrolled in the childhood-onset group (0-11 years), 19 patients in the adolescence/youth-onset group (12-21 years), and 119 patients in the adult-onset group (>21 years). Blood pressure, anthropometric and biochemical characteristics were obtained, and the MC4R coding region of each subject's DNA was assessed using automated Sanger sequencing. RESULTS: Significant anthropometric differences between the groups were observed. Higher body weight and BMI medians were found in patients with childhood-onset or adolescence/youth-onset when compared to the adulthood-onset obesity group. A total of five mutations were identified, including four missense variants: p.Ser36Thr, p.Val103Ile, p.Ala175Thr, and p.Ile251Leu. Additionally, we observed one synonymous variant (p.Ile198=). The p.Ala175Thr variant was identified in a female case with severe obesity and adulthood-onset. This variant was previously described as a partial loss-of-function mutation, in which the minor allele poses dominant-negative effect, probably resulting in reduced cAMP activity. CONCLUSION: This study showed a prevalence of common and rare variants in a cohort of Brazilian adults with severe obesity and candidates to bariatric surgery. We have identified a rare potentially pathogenic MC4R variant in a Brazilian patient with severe and adulthood-onset obesity.

Is weight regain after bariatric surgery associated with psychiatric comorbidity? A systematic review and meta-analysis.

Bariatric surgery has been recognized as the gold standard treatment for severe obesity. Although postbariatric surgery patients usually achieve and maintain substantial weight loss, a group of individuals may exhibit weight regain. Several factors are proposed to weight regain, including psychiatric comorbidity. The objective of the study is to conduct a systematic review and meta-analysis of studies investigating the relationship between psychiatric comorbidity and weight regain. A systematic review through PubMed, Web of Science, Cochrane Library, Scopus, and PsycINFO was performed, following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). After a stepwise selection, 13 articles were included in the qualitative analysis and 5 were included for a meta-analysis. Women was majority in most of the studies (87.6%), and a bypass procedure was the bariatric intervention most evaluated (66.8%), followed by gastric banding (32.1%) and sleeve (1.1%). Higher rates of postbariatric surgery eating psychopathology were reported in patients with weight regain. However, the association between general psychopathology and weight regain was not consistent across the studies. In the meta-analysis, the odds of eating psychopathology in the weight regain group was higher compared with the nonweight regain group (OR = 2.2, 95% CI 1.54-3.15). Postbariatric surgery eating psychopathology seems to play an important role in weight regain.

Relationship between inflammatory markers, glycated hemoglobin and placental weight on fetal outcomes in women with gestational diabetes.

OBJECTIVE: The aim of this study was to evaluate the relationship between inflammatory cytokines, placental weight, glycated hemoglobin and adverse perinatal outcomes (APOs) in women with gestational diabetes mellitus (GDM). SUBJECTS AND METHODS: This was a prospective, longitudinal and observational study conducted from April 2004 to November 2005 in Bauru, Brazil. Included patients had singleton pregnancies and performed a 100 g OGTT and had the levels of C-reactive protein (CRP), interleukin (IL)-6, TNF alfa and glycated hemoglobin (HbA1c) determined at 24-28th gestation weeks. RESULTS: A total of 176 patients were included, of whom 78 had the diagnosis of GDM (44.3%). Multivariate analysis demonstrated that HbA1c, age, body mass index (BMI) and previous history of GDM were independent predictors for GDM diagnosis. ROC curve indicated that HbA1C levels ≥ 5.1% at 24-28 weeks gestation were associated with GDM. No difference was found in IL-6, tumor necrosis factor alpha (TNF-alpha) and CRP serum levels in women with and without GDM. Multivariate analysis showed that placental weight was significantly associated with APOs (p < 0.005), with a cut-off value of 610 grams as demonstrated by the ROC curve. CONCLUSION: Placental weight ≥ 610 grams and HbA1C ≥ 5.1% were found to be associated with APOs and GDM, respectively, and their evaluation should be part of prenatal care routine.

Relationship between inflammatory markers, glycated hemoglobin and placental weight on fetal outcomes in women with gestational diabetes

ABSTRACT Objective: The aim of this study was to evaluate the relationship between inflammatory cytokines, placental weight, glycated hemoglobin and adverse perinatal outcomes (APOs) in women with gestational diabetes mellitus (GDM). Subjects and methods: This was a prospective, longitudinal and observational study conducted from April 2004 to November 2005 in Bauru, Brazil. Included patients had singleton pregnancies and performed a 100 g OGTT and had the levels of C-reactive protein (CRP), interleukin (IL)-6, TNF alfa and glycated hemoglobin (HbA1c) determined at 24-28th gestation weeks. Results: A total of 176 patients were included, of whom 78 had the diagnosis of GDM (44.3%). Multivariate analysis demonstrated that HbA1c, age, body mass index (BMI) and previous history of GDM were independent predictors for GDM diagnosis. ROC curve indicated that HbA1C levels ≥ 5.1% at 24-28 weeks gestation were associated with GDM. No difference was found in IL-6, tumor necrosis factor alpha (TNF-alpha) and CRP serum levels in women with and without GDM. Multivariate analysis showed that placental weight was significantly associated with APOs (p < 0.005), with a cut-off value of 610 grams as demonstrated by the ROC curve. Conclusion: Placental weight ≥ 610 grams and HbA1C ≥ 5.1% were found to be associated with APOs and GDM, respectively, and their evaluation should be part of prenatal care routine.

Long term maintenance of glucose and lipid concentrations after Roux-en-Y gastric bypass.

OBJECTIVE: Roux-en-Y gastric bypass (RYGB) reduces body weight and the comorbidities associated with obesity. The aim of this study was to evaluate whether glucose and lipid profiles were maintained during a 5-year follow-up period after RYGB. SUBJECTS AND METHODS: Anthropometric and laboratory data from 323 patients who had undergone this operation were analyzed. Differences in laboratory variables between the baseline and 12, 24, 36, 48 and 60 months postoperatively (PO) were assessed using a one-way ANOVA test to compare the three groups. Delta significance using one-way ANOVA was performed to assess anthropometric variable in the postoperative period (p < 0.05). RESULTS: 77 patients (24%) were included in Group 1 (G1), 101 (32%) in Group 2 (G2), and 141 (44%) in Group 3 (G3). The majority of patients, 71.7% in G1, 82.8% in G2, and 70% in G3, showed high triglycerides (TG) before surgery. A decrease in weight loss was observed in all groups followed by an increase in body weight in G2 and G3 at 36, 48 and 60 months. Laboratory results for G1, G2 and G3 showed no significant differences between groups at baseline and during the post-operative period. CONCLUSION: Our results suggest that weight regain after RYGB has no significant impact on the long-term evolution of the lipid profile and glycemia.

Influence of FTO rs9939609 polymorphism on appetite, ghrelin, leptin, IL6, TNFα levels, and food intake of women with morbid obesity.

BACKGROUND: The fat mass and obesity-related (FTO) gene has a strong relationship with obesity, extreme obesity and inflammatory state, and may also be associated with food intake regulation. OBJECTIVE: The aim of the present study was to evaluate the influence of the rs9939609 single-nucleotide polymorphism of the FTO gene on appetite, ghrelin, leptin, interleukin 6 (IL6), tumor necrosis factor α (TNFα) levels and food intake of morbidly obese women. MATERIALS AND METHODS: The study comprised 70 women, aged between 20 and 48 years, from Rio de Janeiro, Brazil. The participants were selected according to the body mass index between 40 and 60 kg/m2. Anthropometric and biochemical data were measured during fasting. Hormones and inflammatory data were measured before and after the participants ate an isocaloric meal. Dietary records were calculated and analyzed using a nutritional assessment program. Visual analog scales were used for behaviors of the sensations of appetite and food preferences. The FTO rs9939609 variant was genotyped using real-time polymerase chain reaction. RESULTS: Participants with the AA genotype had lower values of ghrelin and IL6 and higher values of leptin than those with TT and TA in the postprandial period. Comparing the plasma concentrations of ghrelin, insulin, IL6 and TNFα intragenotypes, it was observed that those with TT had decreased leptin and increased IL6 at the postprandial period. Subjects with TA showed increased postprandial IL6, and those with AA had decreased postprandial ghrelin. There was no difference in TNFα intra- and intergenotypes. The postprandial sensations of hunger were lower in AA than those with TT. There were differences between genotypes regarding ingested grams of protein by weight, cholesterol, B3, B5, B6 and B12 vitamins, and selenium potassium and sodium minerals. CONCLUSION: These findings suggest that genetics may exert an influence on physiologic factors and might alter eating behavior.

Long term maintenance of glucose and lipid concentrations after Roux-en-Y gastric bypass

Abstract Objective: Roux-en-Y gastric bypass (RYGB) reduces body weight and the comorbidities associated with obesity. The aim of this study was to evaluate whether glucose and lipid profiles were maintained during a 5-year follow-up period after RYGB. Subjects and methods: Anthropometric and laboratory data from 323 patients who had undergone this operation were analyzed. Differences in laboratory variables between the baseline and 12, 24, 36, 48 and 60 months postoperatively (PO) were assessed using a one-way ANOVA test to compare the three groups. Delta significance using one-way ANOVA was performed to assess anthropometric variable in the postoperative period (p < 0.05). Results: 77 patients (24%) were included in Group 1 (G1), 101 (32%) in Group 2 (G2), and 141 (44%) in Group 3 (G3). The majority of patients, 71.7% in G1, 82.8% in G2, and 70% in G3, showed high triglycerides (TG) before surgery. A decrease in weight loss was observed in all groups followed by an increase in body weight in G2 and G3 at 36, 48 and 60 months. Laboratory results for G1, G2 and G3 showed no significant differences between groups at baseline and during the post-operative period. Conclusion: Our results suggest that weight regain after RYGB has no significant impact on the long-term evolution of the lipid profile and glycemia.

Perfil da composição corporal de mulheres com obesidade grau III pelo método de bioimpedância multipolar / Profile of body composition in women with class III obesity by multipolar bioimpedance method / Perfil de composición corporal en mujeres con obesidad grado III por el método de bioimpedancia multipolar

RESUMO Objetivo O objetivo do estudo foi analisar um perfil da composição corporal de mulheres com obesidade grau III, através do método de bioimpedância multipolar. Métodos Foram avaliadas 13 mulheres com idades entre 20 e 40 anos e sedentárias. Resultados Os resultados demonstraram que as pacientes possuíam um % de 51,9±1,50 % e massa livre de gordura de 48,1±1,50 %. Em relação à massa gorda e massa magra por regiões do corpo, observou-se que no tronco havia 26,3±3,62 kg e 26,2±2,91 kg, seguido dos membros inferiores com 9,1±0,06 kg e 8,4±0,14 kg e dos membros superiores 3,3±0,02 kg e 7,6±0,01 kg, respectivamente. Os pacientes demonstraram certa simetria entre o lado direito e esquerdo tanto para os membros superiores e inferiores, além disto, à massa muscular foi 32,1±5,08 kg, com um índice de massa muscular de 12,7±1,05 kg/m2. Conclusão Houve um maior acumulo de gordura na região do tronco seguido de membros inferiores e superiores e a massa muscular total estava aparentemente preservada, não sendo verificada a obesidade sarcopênica. Como é um grupo de pessoas que ainda é pouco estudado há a necessidade de uma maior investigação sobre o perfil genético, físico e do gasto calórico em repouso e em exercício.(AU)

ABSTRACT Objective To analyze a body composition profile in women with class III obesity using the multipolar bioimpedance method. Methods Thirteen sedentary women aged between 20 and 40 years were evaluated. Results The results show that the patients had a fat percentage of 51.9±1.50 % and lean mass of 48.1±1.50 %. Regarding fat mass and lean mass per body region, figures of 26.3±3.62kg and 26.2±2.91kg in the upper body, 9.1±0.06kg and 8.4±0.14kg in the lower limbs, and 3.3±0.02kg and 7.6±0.01kg in the upper limbs were obtained. Patients had a good symmetry between the left and right sides in both upper and lower limbs, besides of a muscular mass of 32.1±5.08kg, with a muscular mass index of 12.7±1.05kg/m2. Conclusion Higher fat accumulation was observed in the upper body region, followed by lower and upper limbs. Total muscular mass was apparently preserved, although sarcopenic obesity was not verified. Since this is a group of people that is still understudied, there is a need for further research on genetic and physical profile and caloric expenditure during exercise and rest.

RESUMEN Objetivo Analizar un perfil de la composición corporal de mujeres con obesidad grado III, a través del método de bioim-pedancia multipolar. Métodos Se evaluaron 13 mujeres de entre 20 y 40 años y sedentarias. Resultados Los resultados demostraron que las pacientes poseían un %G de 51,9 ± 1,50 % y una masa libre de grasa de 48,1 ± 1,50 %. En cuanto a la masa grasa y masa magra por regiones del cuerpo, se observó que en el tronco había 26,3 ± 3,62 kg y 26,2 ± 2,91 kg, seguido de los miembros inferiores con 9,1 ± 0,06 kg y 8 , 4 ± 0,14 kg y de los miembros superiores 3,3 ± 0,02kg y 7,6 ± 0,01 kg, respectivamente. Los pacientes demostraron cierta simetría entre el lado derecho e izquierdo tanto para los miembros superiores e inferiores, además, a la masa muscular fue 32,1 ± 5,08 kg, con un índice de masa muscular de 12,7 ± 1,05 kg/m2. Conclusión Hubo un mayor acúmulo de grasa en la región del tronco seguido de miembros inferiores, superiores y la masa muscular total estaba aparentemente preservada, no siendo verificada la obesidad sarcopénica. Como es un grupo de personas que todavía es poco estudiado hay la necesidad de una mayor investigación sobre el perfil genético, físico y del gasto calórico en reposo y en ejercicio.(AU)

O transtorno da compulsão alimentar (TCA) tem impacto no reganho de peso após a cirurgia bariátrica? Relato de caso / The binge eating disorder (BED) could influence the weight regain after bariatric surgery? Case report

RESUMO A cirurgia bariátrica (CB) é considerada o tratamento mais eficaz para obesidade grave em longo prazo. Apesar de estar associada à resolução ou melhora das comorbidades clínicas, um desfecho possível é o reganho de peso. Um conjunto de evidências aponta a presença do transtorno da compulsão alimentar (TCA) como um dos fatores de risco associados ao reganho de peso pós-operatório. O objetivo desta apresentação de casos clínicos é discutir o possível impacto dos episódios de compulsão alimentar em pacientes submetidos à CB. Serão apresentados os seguintes casos (1): uma mulher de 41 anos, avaliada após 8 anos da cirurgia, apresentando um reganho de 22,9 kg e psicopatologia alimentar compatível com TCA; (2): um homem de 48 anos, avaliado no pós-operatório de 7 anos, com um reganho de 30 kg e exibindo queixas de beliscamento alimentar, porém sem sintomas compatíveis com TCA; (3): uma mulher de 44 anos, avaliada no pós-operatório de 3 anos, mantendo peso estável sem reganho e que exibia à avaliação TCA. Os autores discutem, a partir destes três casos, as evidências relacionadas ao impacto da compulsão alimentar no resultado da CB. Apesar de não haver, no momento, um consenso definitivo quanto ao real impacto dos transtornos alimentares neste recrudescimento ponderal, fica claro que o clínico deve estar atento ao TCA e sua possível associação com o reganho de peso.

ABSTRACT Bariatric surgery (BS) is the most effectiveness long term treatment to severe obesity. However being associated with resolution or improvement of clinic comorbidities, one possible outcome is weight regain. A group of evidences appoint to the presence of BED (binge eating disorder) as one risk factor associated to post-surgery weight regain. The aim of this case report is to discuss a possible impact of binge eating in patients submitted to BS. The following cases will be presented: (1): 41 years woman, evaluated after 8 years post-surgery, showing weight regain of 22.9 kg and compatible eating psychopathology with BED; (2): 48 years men, evaluated 7 years post-surgery, with weight regain of 30 kg and showing grazing complaints, although without compatible BED symptomatology; (3): 44 years woman, evaluated 3 years post-surgery, maintaining stable weight without weight regain and BED exhibited in evaluation. The authors discuss, from these three index cases, the associated evidences related to the impact of the binge eating in the BS result. Although, for the moment, any definitely consensus on the real impact of eating disorders in weight recrudescence is not possible, it is clear that the clinician need to be alert to BED and possible association with weight regain.

Characterization of stromal vascular fraction and adipose stem cells from subcutaneous, preperitoneal and visceral morbidly obese human adipose tissue depots.

BACKGROUND/OBJECTIVES: The pathological condition of obesity is accompanied by a dysfunctional adipose tissue. We postulate that subcutaneous, preperitoneal and visceral obese abdominal white adipose tissue depots could have stromal vascular fractions (SVF) with distinct composition and adipose stem cells (ASC) that would differentially account for the pathogenesis of obesity. METHODS: In order to evaluate the distribution of SVF subpopulations, samples of subcutaneous, preperitoneal and visceral adipose tissues from morbidly obese women (n = 12, BMI: 46.2±5.1 kg/m2) were collected during bariatric surgery, enzymatically digested and analyzed by flow cytometry (n = 12). ASC from all depots were evaluated for morphology, surface expression, ability to accumulate lipid after induction and cytokine secretion (n = 3). RESULTS: A high content of preadipocytes was found in the SVF of subcutaneous depot (p = 0.0178). ASC from the three depots had similar fibroblastoid morphology with a homogeneous expression of CD34, CD146, CD105, CD73 and CD90. ASC from the visceral depot secreted the highest levels of IL-6, MCP-1 and G-CSF (p = 0.0278). Interestingly, preperitoneal ASC under lipid accumulation stimulus showed the lowest levels of all the secreted cytokines, except for adiponectin that was enhanced (p = 0.0278). CONCLUSIONS: ASC from preperitoneal adipose tissue revealed the less pro-inflammatory properties, although it is an internal adipose depot. Conversely, ASC from visceral adipose tissue are the most pro-inflammatory. Therefore, ASC from subcutaneous, visceral and preperitoneal adipose depots could differentially contribute to the chronic inflammatory scenario of obesity.

EFFECTS OF LONG-TERM ROUX-EN-Y GASTRIC BYPASS ON BODY WEIGHT AND CLINICAL METABOLIC COMORBIDITIES IN BARIATRIC SURGERY SERVICE OF A UNIVERSITY HOSPITAL.

Background: Due to the high failure rate observed in the clinical treatment of morbid obesity an increase in bariatric surgery indications, as an alternative for the control of obesity and comorbidities, is noticeable. Aim: To evaluate the performance of type 2 diabetes mellitus, high blood pressure and dyslipidemia in patients submitted to Roux-en-Y gastric bypass in late follow-up. Methods: Retrospective analysis of 59 patients included in the bariatric surgery program. Anthropometric (height and body weight) and laboratory (LDLc, HDLc, VLDLc, triglyceride -TG - and glucose) data were collected on pre- and postoperative stages, through medical records. Results: Among the patients, 86% were female aged 43±11, of whom 52% had attended high school. The average postoperative time was 7±3 years. During the postoperative period, there were decreases of weight and body mass index, respectively (133±06 kg vs 91±04 kg p<0.05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0.05). In comparison to the preoperative stage, lower concentrations of glucose (101.00±26.99 vs 89,11±15.19, p=0.014), total cholesterol rates (179.00±37,95 vs 167.48±28,50, p=0.016), LDLc (104.30±33.12 vs 91.46±24.58, p=0.016), VLDLc (25.40±11,12 vs 15.68±7.40, p<0.01), and TG (143.35±86.35 vs 82.45±37.39, p<0.01) and higher concentrations of HDLc (43.53±8.23 vs 57.90±15.60, p<0.01) were identified in the postoperative stage. 40% of hypertensive patients were still undergoing high blood pressure treatment during the postoperative stage. There was remission of type 2 diabetes mellitus and dyslipidemia on 81% and 94% of the cases, respectively. Conclusion: Roux-en-Y gastric bypass has proven itself to be an effective long term procedure, promoting weight loss, remission of DM2 and dyslipidemia.

Racional: Em função do alto grau de falência que se observa no tratamento clínico da obesidade mórbida, observa-se um aumento da procura pela cirurgia bariátrica como alternativa para o controle da obesidade e comorbidades. Objetivo: Avaliar a evolução do diabete melito tipo 2, da hipertensão arterial sistêmica e da dislipidemia em pacientes submetidos à gastroplastia redutora em Y-de-Roux no período de pós-operatório tardio. Métodos: Análise retrospectiva de 59 pacientes inseridos em programa de cirurgia bariátrica. Foram coletados dados antropométricos (altura e peso corporal) e laboratoriais (LDLc, HDLc, VLDLc, triglicerídeo -TG - e glicose) nos períodos pré e pós-operatório por meio de prontuários médicos. Resultados: Entre os pacientes, 86% eram mulheres com idade de 43±11 anos e 52% tinham cursado o ensino médio. O tempo médio de pós-operatório foi de 7±3 anos. Houve redução no peso e no índice de massa corporal no pós-operatório, respectivamente (133±06 kg vs 91±04 kg p<0,05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0,05). Observou-se concentrações inferiores no pós-operatório, comparado com o pré-operatório, da glicose (101,00±26,99 vs 89,11±15,19, p=0,014), colesterol total (179,00±37,95 vs 167,48±28,50, p=0,016), LDLc (104,30±33,12 vs 91,46±24,58, p=0,016), VLDLc (25,40±11,12 vs 15,68±7,40, p<0,01), e TG (143,35±86,35 vs 82,45±37,39, p<0,01) e maiores de HDLc (43,53±8,23 vs 57,90±15,60, p<0,01 ). No pós-operatório 40% dos pacientes hipertensos ainda estavam em tratamento para hipertensão arterial sistêmica. Houve remissão do diabete melito tipo 2 e da dislipidemia em 81% e 94% dos casos, respectivamente. Conclusão: A gastroplastia redutora em Y-de-Roux mostrou ser procedimento eficaz em longo prazo, com resultados persistentes na perda de peso, remissão do DM2 e da dislipidemia.

Efeitos do exercício físico agudo em ciclo ergômetro de membros superiores em indivíduos com obesidade mórbida / Effects of acute exercise with upper body cycle ergometer in individuals with morbid obesity / Efectos de ejercicio físico agudo con ciclo ergómetro de miembros superiores en individuos con obesidad mórbida

Objetivo O objetivo deste estudo foi estudar o efeito agudo do exercício físico em cicloergômetro adaptado para membros superiores sobre marcadores fisiológicos em obesos mórbidos. Métodos Participaram da pesquisa dez pacientes que realizaram 30 minutos de atividade contínua em um cicloergômetro adaptado para membros superiores. Foram avaliados a pressão arterial sistêmica, a frequência cardíaca, o duplo produto e a saturação de oxigênio. Para análise estatística utilizou-se de análise descritiva. Resultados Os pacientes apresentaram o valor de 52,1 ± 8,3 no Índice de Massa Corporal. A maioria dos avaliados apresentaram uma discreta redução na pressão arterial sistólica (PAS) e diastólica (PAD) após a atividade física, com valores médios pré e pós na PAS de 135,5±11,4 e 133,5±15,3 mmHg, e 83±7,5 e 77±7,1 na PAD. A frequência cardíaca média foi de 68±10,4 bpm antes, 100,6±16,5 bpm durante e 80,7±14,5 bpm após 1 minuto. O Duplo Produto (DP) apresentou aumento médio de 29,6±17,1 % entre os homens e de 10,4±8,9 % entre as mulheres quando comparado com a fase inicial. A saturação de oxigênio não apresentou diferença média antes, durante e após a atividade. Conclusão Conclui-se que o exercício físico em cicloergômetro para membros superiores, realizado de forma aguda em obesos mórbidos não apresenta risco elevado, sendo uma boa intervenção para promoção da saúde.(AU)

Objective The purpose of this study is to research effects of acute exercise with cycle ergometers adapted for the upper limbs on physiological markers in the morbidly obese. Methods Ten morbidly obese patients participated in the study. They were submitted to thirty minutes of continuous activity on a cycle ergometer adapted to the upper limbs. The following physiological markers were evaluated: systemic arterial pressure, heart rate, the double product, and oxygen saturation. For the statistical analysis, descriptive analysis was used. Results Patients showed a Body Mass Index (BMI) value of 52.1 ± 8.3. Most of the subjects showed a slight reduction in systolic blood pressure (SBP) and diastolic blood pressure (DBP) after physical activity, with SBP before and after physical activity of 135.5±11.4 and 133.5±15.3 mmHg, respectively, and, for DBP, 83±7.5 and 77±7.1 respectively. The average heart rate was 68±10.4 bpm before, 100.6±16.5 bpm during and 80.7±14.5 bpm 1 minute after. The double product (DP) had a mean increase of 29.6±17.1 % in men and 10.4±8.9 % in women when compared with the initial phase. The oxygen saturation showed no mean difference before, during or after activity. Conclusion It can be concluded that acute physical exercise with an upper limbs cycle ergometer in morbidly obese patients does not represent an elevated risk to these patients, being in fact a good intervention to promote health.(AU)

Objetivo El objetivo de este estudio fue investigar el efecto del ejercicio físico agudo en un ciclo ergómetro adaptado para miembros superiores sobre marcadores fisiológicos en obesos mórbidos. Métodos Participaron en la investigación diez pacientes que realizaron 30 minutos de actividad continua en un ciclo ergómetro adaptado para miembros superiores. Fueron evaluadas la presión arterial sistémica, la frecuencia cardíaca, el doble producto y la saturación de oxígeno. Para el análisis estadístico se utilizó el análisis descriptivo. Resultados Los pacientes presentaron un valor de Índice de Masa Corporal de 52,1±8,3. La mayoría de los evaluados presentaron una discreta reducción en la presión arterial sistólica (PAS) y diastólica (PAD) después de la actividad física, con valores medios pre y pos en la PAS de 135,5±11,4 y 133,5±15,3 mmHg respectivamente y, para la PAD, 83±7,5 y 77±7,1, respectivamente. El valor medio de la frecuencia cardíaca fue de 68±10,4 lpm antes, 100,6±16,5 lpm durante y 80,7±14,5 lpm 1 minuto después de la actividad física. El producto doble (DP) presentó un aumento medio de 29,6±17,1 % en los hombres y de 10,4±8,9 % en las mujeres comparado con la fase inicial. La saturación de oxigeno no presentó ninguna diferencia media antes, durante ni después de la actividad. Conclusión Se concluye que el ejercicio físico agudo en el ciclo ergómetro para miembros superiores realizado por obesos mórbidos no representa ningún riesgo elevado, siendo una buena intervención para la promoción de la salud.(AU)

Nutritional Status, Body Composition, and Bone Health in Women After Bariatric Surgery at a University Hospital in Rio de Janeiro.

INTRODUCTION: Calcium and/or vitamin D deficiency can occur after Roux-en-Y gastric bypass (RYGBP) because of impaired absorption, resulting in secondary hyperparathyroidism and increased risk of reduced bone mineral density (BMD). OBJECTIVE: The objective of this study is to assess nutritional status, body composition, and bone health in women after RYGBP. METHOD: Twenty-five premenopausal women who had undergone RYGBP (test group) and 33 women matched for age and body mass index who had not undergone surgery (control group) participated. Test group received 250 mg of calcium for day. Anthropometric, dietary, laboratory, body composition, and BMD (X-ray absorptiometry) analyses were performed. RESULTS: No differences were found between the groups in waist circumference, fat or lean mass, BMD, or dietary calcium intake, although calcium intake was low in both groups. The test group had better results for complete blood count, total cholesterol, low-density lipoprotein, and triglycerides. The mean parathyroid hormone was higher (p = 0.005) in the test group, although still within normal limits. Plasma levels of 25-hydroxyvitamin D were low in groups but did not differ between them (p = 0.075). Vitamin D concentrations were lower in women with longer time since surgery. The test group had lower intake of energy, protein, lipids, polyunsaturated fatty acids, fiber, phosphorus, and iron than the control group. CONCLUSION: Elevation of parathyroid hormone, low dietary calcium intake, and vitamin D plasma insufficiency without BMD reduction occurred after RYGBP. Patients who underwent RYGBP had adequate lipid profiles but inadequate intake protein, polyunsaturated fatty acids, fiber, and iron. Vitamin D deficiency may occur in the late postoperative period.

EFFECTS OF LONG-TERM ROUX-EN-Y GASTRIC BYPASS ON BODY WEIGHT AND CLINICAL METABOLIC COMORBIDITIES IN BARIATRIC SURGERY SERVICE OF A UNIVERSITY HOSPITAL / EFEITOS NO LONGO PRAZO DA GASTROPLASTIA REDUTORA EM Y-DE-ROUX SOBRE O PESO CORPORAL E COMORBIDADES CLÍNICO METABÓLICAS EM SERVIÇO DE CIRURGIA BARIÁTRICA DE UM HOSPITAL UNIVERSITÁRIO

ABSTRACT Background: Due to the high failure rate observed in the clinical treatment of morbid obesity an increase in bariatric surgery indications, as an alternative for the control of obesity and comorbidities, is noticeable. Aim: To evaluate the performance of type 2 diabetes mellitus, high blood pressure and dyslipidemia in patients submitted to Roux-en-Y gastric bypass in late follow-up. Methods: Retrospective analysis of 59 patients included in the bariatric surgery program. Anthropometric (height and body weight) and laboratory (LDLc, HDLc, VLDLc, triglyceride -TG - and glucose) data were collected on pre- and postoperative stages, through medical records. Results: Among the patients, 86% were female aged 43±11, of whom 52% had attended high school. The average postoperative time was 7±3 years. During the postoperative period, there were decreases of weight and body mass index, respectively (133±06 kg vs 91±04 kg p<0.05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0.05). In comparison to the preoperative stage, lower concentrations of glucose (101.00±26.99 vs 89,11±15.19, p=0.014), total cholesterol rates (179.00±37,95 vs 167.48±28,50, p=0.016), LDLc (104.30±33.12 vs 91.46±24.58, p=0.016), VLDLc (25.40±11,12 vs 15.68±7.40, p<0.01), and TG (143.35±86.35 vs 82.45±37.39, p<0.01) and higher concentrations of HDLc (43.53±8.23 vs 57.90±15.60, p<0.01) were identified in the postoperative stage. 40% of hypertensive patients were still undergoing high blood pressure treatment during the postoperative stage. There was remission of type 2 diabetes mellitus and dyslipidemia on 81% and 94% of the cases, respectively. Conclusion: Roux-en-Y gastric bypass has proven itself to be an effective long term procedure, promoting weight loss, remission of DM2 and dyslipidemia.

RESUMO Racional: Em função do alto grau de falência que se observa no tratamento clínico da obesidade mórbida, observa-se um aumento da procura pela cirurgia bariátrica como alternativa para o controle da obesidade e comorbidades. Objetivo: Avaliar a evolução do diabete melito tipo 2, da hipertensão arterial sistêmica e da dislipidemia em pacientes submetidos à gastroplastia redutora em Y-de-Roux no período de pós-operatório tardio. Métodos: Análise retrospectiva de 59 pacientes inseridos em programa de cirurgia bariátrica. Foram coletados dados antropométricos (altura e peso corporal) e laboratoriais (LDLc, HDLc, VLDLc, triglicerídeo -TG - e glicose) nos períodos pré e pós-operatório por meio de prontuários médicos. Resultados: Entre os pacientes, 86% eram mulheres com idade de 43±11 anos e 52% tinham cursado o ensino médio. O tempo médio de pós-operatório foi de 7±3 anos. Houve redução no peso e no índice de massa corporal no pós-operatório, respectivamente (133±06 kg vs 91±04 kg p<0,05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0,05). Observou-se concentrações inferiores no pós-operatório, comparado com o pré-operatório, da glicose (101,00±26,99 vs 89,11±15,19, p=0,014), colesterol total (179,00±37,95 vs 167,48±28,50, p=0,016), LDLc (104,30±33,12 vs 91,46±24,58, p=0,016), VLDLc (25,40±11,12 vs 15,68±7,40, p<0,01), e TG (143,35±86,35 vs 82,45±37,39, p<0,01) e maiores de HDLc (43,53±8,23 vs 57,90±15,60, p<0,01 ). No pós-operatório 40% dos pacientes hipertensos ainda estavam em tratamento para hipertensão arterial sistêmica. Houve remissão do diabete melito tipo 2 e da dislipidemia em 81% e 94% dos casos, respectivamente. Conclusão: A gastroplastia redutora em Y-de-Roux mostrou ser procedimento eficaz em longo prazo, com resultados persistentes na perda de peso, remissão do DM2 e da dislipidemia.