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1.
Adv Exp Med Biol ; 1307: 299-320, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32072474

RESUMO

Obesity is a major factor in the worldwide rise in the prevalence of type 2 diabetes mellitus. The obesity "epidemic" will require novel, effective interventions to permit both the prevention and treatment of diabetes caused by obesity. Laparoscopic vertical sleeve gastrectomy is a newer bariatric surgical procedure with a lower risk of complications (compared to Roux-en-Y gastric bypass surgery). Based in part on restriction of daily caloric intake, sleeve gastrectomy has a major role in inducing significant weight loss and weight loss is maintained for at least 10 years. Prior studies have supported the utility of the vertical sleeve gastrectomy for the treatment and management of subgroups of individuals with diabetes mellitus. There are reports of 11% to 76.9% of obese individuals discontinuing use of diabetic medications in studies lasting up to 8 years after vertical sleeve gastrectomy. Major ongoing issues include the preoperative determination of the suitability of diabetic patients to undergo this bariatric surgical procedure. Understanding how this surgical procedure is performed and the resulting anatomy is important when vertical sleeve gastrectomy is being considered as a treatment option for diabetes. In the postoperative periods, specific macronutrient goals and micronutrient supplements are important for successful and safer clinical results. An understanding of immediate- and long term- potential complications is important for reducing the potential risks of vertical sleeve gastrectomy. This includes the recognition and treatment of postoperative nutritional deficiencies and disorders. Vertical sleeve gastrectomy is a component of a long term, organized program directed at treating diabetes related to obesity. This approach may result in improved patient outcomes when vertical sleeve gastrectomy is performed to treat type 2 diabetes in obese individuals.


Assuntos
Diabetes Mellitus Tipo 2 , Gastrectomia , Derivação Gástrica , Obesidade Mórbida , Adulto , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/cirurgia , Humanos , Laparoscopia , Obesidade Mórbida/cirurgia , Resultado do Tratamento
2.
Adv Exp Med Biol ; 1307: 321-330, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32200501

RESUMO

Bariatric surgery is currently the most effective weight loss treatment of severe obesity and its associated comorbidities and is being increasingly used to treat children and adolescents with severe obesity, including those with Type 2 Diabetes (T2D). This review focuses on the conventional management of T2D in children and adolescents, comparison of various types of bariatric surgeries, effect of bariatric surgery on gastrointestinal physiology and metabolism, current literature on the use of bariatric surgery to treat youth with severe obesity and T2D, and the potential complications of bariatric surgery in this population.


Assuntos
Cirurgia Bariátrica , Diabetes Mellitus Tipo 2 , Derivação Gástrica , Laparoscopia , Obesidade Mórbida , Adolescente , Cirurgia Bariátrica/efeitos adversos , Criança , Diabetes Mellitus Tipo 2/cirurgia , Humanos , Obesidade Mórbida/cirurgia , Resultado do Tratamento , Perda de Peso
8.
Surg Technol Int ; 37: 57-61, 2020 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-33180956

RESUMO

.Laparoscopic One-Anastomosis Gastric Bypass (OAGB) is a bariatric procedure that combines the principles of restriction and malabsorption, which are achieved by creating a long and narrow gastric pouch and bypassing part of the small bowel (duodenum and part of the jejunum). It is currently the third most common bariatric procedure worldwide; more than19,000 operations (4.8%) are performed per year. OAGB is synonymous with "Mini Gastric Bypass" and "Omega Loop Gastric Bypass". There are numerous technical variants for performing OAGB and organizing pre- and postoperative care. This article is based on the approach to bariatric surgery at the Department of General Surgery at Vienna Medical University. We focus on patient preparation before a bariatric/metabolic procedure with mandatory and optional examinations to decrease the patient's risk and find the procedure best suited for each individual patient. Next, the surgical technique itself is described, including positioning of the patient, positioning of the trocars and related tips, tricks, and technical highlights, as well as the specifics of the postoperative course. OAGB is an effective procedure for weight loss and remission of comorbidities with a low risk of malnutrition for patients with good compliance. For OAGB to be successful, important technical steps such as a long and narrow pouch, exact length of the biliopancreatic limb and hiatoplasty, if necessary, should be taken. In terms of post-operative care, regular check-ups are vital to ensure a positive outcome in long-term follow-up and the early detection of adverse developments.


Assuntos
Cirurgia Bariátrica , Derivação Gástrica , Humanos , Obesidade Mórbida/epidemiologia , Obesidade Mórbida/cirurgia , Estômago , Perda de Peso
9.
Rev Col Bras Cir ; 47: e20202655, 2020.
Artigo em Inglês, Português | MEDLINE | ID: mdl-33237184

RESUMO

INTRODUCTION: obesity has become a public health problem in Brazil and worldwide, due to its high prevalence. It is considered a risk factor for systemic arterial hypertension (SAH) and type 2 diabetes mellitus T2DM. Although lifestyle changes can control and even achieve complete T2DM remission, most patients have difficulty controlling blood glucose. Recent studies show that the Roux-en-Y gastric bypass (RYGB) is efficient for weight loss and control of T2DM and SAH in obese individuals. OBJECTIVE: to analyze the effect of the RYGB technique on the control and treatment of comorbidities related to obesity. METHOD: this is a retrospective cohort study, with information obtained from the review of medical records, with data collection in the pre and postoperative period of patients undergoing bariatric surgery. We selected those with T2DM and SAH for the study. RESULTS: 252 patients underwent RYGB in the service. Seventy-nine (31.3%) had T2DM and 64 had SAH associated with T2DM. Regarding T2DM and SAH, 37.9% and 43,7%, respectively, showed total remission of the disease after surgery. There was a reduction in the postoperative use of Metformin, insulin / Gliclazide, Propranolol, Losartan and Hydrochlorothiazide in 62%, 10.1%, 100%, 26.5% and 22.8% of patients, respectively. CONCLUSION: the RYGB technique is effective in the remission of T2DM and SAH. Even in cases where there was no total remission of the diseases, there was a significant drop in the use of medicines used for their treatment.


Assuntos
Diabetes Mellitus Tipo 2/epidemiologia , Derivação Gástrica/métodos , Hipertensão/epidemiologia , Obesidade Mórbida/cirurgia , Adulto , Anti-Hipertensivos/uso terapêutico , Brasil/epidemiologia , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Derivação Gástrica/efeitos adversos , Humanos , Hipertensão/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Perda de Peso
10.
Am J Gastroenterol ; 115(11): 1849-1856, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-33156104

RESUMO

INTRODUCTION: With increasing burden of obesity and liver disease in the United States, a better understanding of bariatric surgery in context of cirrhosis is needed. We described trends of hospital-based outcomes of bariatric surgery among cirrhotics and determined effect of volume status and type of surgery on these outcomes. METHODS: In this population-based study, admissions for bariatric surgery were extracted from the National Inpatient Sample using International Classification of Diseases, 9th and 10th Revision, Clinical Modification codes from 2004 to 2016 and grouped by cirrhosis status, type of bariatric surgery, and center volume. In-hospital mortality, complications, and their trends were compared between these groups using weighted counts, odds ratios [ORs], and logistic regression. RESULTS: Among 1,679,828 admissions for bariatric surgery, 9,802 (0.58%) had cirrhosis. Cirrhosis admissions were more likely to be in white men, had higher Elixhauser Index, and higher in-hospital complications rates including death (1.81% vs 0.17%), acute kidney injury (4.5% vs 1.2%), bleeding (2.9% vs 1.1%), and operative complications (2% vs 0.6%) (P < 0.001 for all) compared to those without cirrhosis. Overtime, restrictive surgeries have grown in number (12%-71%) and complications rates have trended down in both groups. Cirrhotics undergoing bariatric surgery at low-volume centers (<50 procedures per year) and nonrestrictive surgery had a higher inpatient mortality rate (adjusted OR 4.50, 95% confidence interval 3.14-6.45, adjusted OR 4.00, 95% confidence interval 2.68-5.97, respectively). DISCUSSION: Contemporary data indicate that among admissions for bariatric surgery, there is a shift to restrictive-type surgeries with an improvement in-hospital complications and mortality. However, patients with cirrhosis especially those at low-volume centers have significantly higher risk of worse outcomes (see Visual abstract, Supplementary Digital Content, http://links.lww.com/AJG/B648).


Assuntos
Lesão Renal Aguda/epidemiologia , Cirurgia Bariátrica/métodos , Mortalidade Hospitalar , Cirrose Hepática/complicações , Hepatopatia Gordurosa não Alcoólica/complicações , Obesidade/cirurgia , Complicações Pós-Operatórias/epidemiologia , Sepse/epidemiologia , Adulto , Idoso , Desvio Biliopancreático , Feminino , Gastrectomia , Derivação Gástrica , Gastroplastia , Hospitais com Baixo Volume de Atendimentos/estatística & dados numéricos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Razão de Chances , Hemorragia Pós-Operatória/epidemiologia , Infecção da Ferida Cirúrgica/epidemiologia , Adulto Jovem
11.
Khirurgiia (Mosk) ; (11): 37-47, 2020.
Artigo em Russo | MEDLINE | ID: mdl-33210506

RESUMO

OBJECTIVE: To develop an acceptable method of surgical treatment of patients with obesity grade 1 and 2 in accordance with the following criteria: high safety, no risk or minimal risk of intestinal malabsorption, no limitations for postoperative gastrointestinal examination, no need for organ resection and surgical reversibility in case of necessity. MATERIAL AND METHODS: In accordance with the above-mentioned criteria, we have modified OAGB (one-anastomosis gastric bypass). A gastric tube was formed from a lesser curvature using 33Fr stomach catheter with a length of at least 25 cm. Manual retrogastric retrocolic anastomosis in «end-to-side¼ fashion was performed within 20 cm from the ligament of Treitz. This type of anastomosis made it possible to preserve gastric tube length as much as possible that reduces the risk of jejunogastroesophageal reflux. RESULTS: There were 16 patients (15 females and 1 male) aged 23-48 years for the period from June 2019 till March 2020. Mean weight of patients was 86.12 kg (range 62-124). Mean BMI was 35.15 kg/m2 (ranged 21.96-39.62). In 6 months after surgery, all patients achieved normal BMI. Man BMI dropped to 23.8 kg/m2. Minimal excessive weight loss was 81.8%, maximal excessive weight loss - 125%. Control esophagogastroduodenoscopy was performed in 5 patients after 6 months and later. During retrograde duodenoscopy, we visualized major duodenal papilla in all cases using a flexible endoscope with standard optic system. CONCLUSION: The proposed modification of one-anastomosis gastric bypass with a short limb is a safe and effective procedure in bariatric surgery. This surgery ensures postoperative diagnostic and therapeutic endoscopic procedures in all parts of stomach and duodenum. This method could be recommended for surgical treatment of patients with obesity grade 1 and 2 after additional clinical trials and analysis of long-term results.


Assuntos
Derivação Gástrica , Obesidade/cirurgia , Adulto , Feminino , Derivação Gástrica/métodos , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/cirurgia , Perda de Peso , Adulto Jovem
12.
Artigo em Inglês | MEDLINE | ID: mdl-33092117

RESUMO

This study aimed to compare the long-term weight loss results, remission of comorbidities and nutritional deficiencies of sleeve gastrectomy (SG), Roux-en-Y gastric bypass (RYGB) and One-Anastomosis gastric bypass (OAGB) on type 2 diabetic (T2D) patients. PATIENTS AND METHODS: A retrospective analysis of all the morbidly obese and diabetic patients undergoing SG, RYGB, and OAGB as primary bariatric procedures between February 2010 and June 2015 was performed. Anthropometric parameters, remission of comorbidities, nutritional deficiencies and supplementation requirements at 1, 2 and 5 years' follow-up were monitored. Patients lost to follow-up 5 years after surgery were excluded from the analysis. RESULTS: 358 patients were included. The follow-up rate was 84.8%. Finally, 83 SG, 152 RYGB, and 123 OAGB patients were included in the analysis. OAGB obtained significantly greater weight loss and remission of dyslipidemia than the other techniques. There was a trend towards greater T2D and hypertension remission rate after OAGB, while fasting glucose and glycated hemoglobin levels were significantly lower after OAGB. There were no significant differences in hemoglobin or protein levels between groups. SG obtained lower iron deficiencies than the other techniques, while there were no significant differences in other nutritional deficiencies between groups. CONCLUSION: OAGB obtained greater weight loss and remission of dyslipidemia than RYGB or SG. Excluding lower iron deficiency rates after SG, there were no significant differences in the development of nutritional deficiencies between groups.


Assuntos
Diabetes Mellitus Tipo 2 , Gastrectomia , Derivação Gástrica , Desnutrição , Obesidade Mórbida , Adulto , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Feminino , Gastrectomia/efeitos adversos , Derivação Gástrica/efeitos adversos , Humanos , Masculino , Desnutrição/epidemiologia , Desnutrição/etiologia , Pessoa de Meia-Idade , Obesidade Mórbida/cirurgia , Estudos Retrospectivos , Perda de Peso
13.
Nutr Metab Cardiovasc Dis ; 30(12): 2372-2378, 2020 11 27.
Artigo em Inglês | MEDLINE | ID: mdl-33028503

RESUMO

BACKGROUND AND AIMS: To investigate the effect of obesity and bariatric-induced weight loss on circulating levels of proprotein convertase subtilisin/kexin 9 (PCSK9) in severely obese patients. METHODS AND RESULTS: In this non-randomized interventional study, we enrolled 36 severely obese patients (BMI 43.7 ± 5.6 kg/m2), of which 20 underwent bariatric surgery, and 12 nonobese healthy controls. An oral glucose tolerance test (75-g OGTT) was performed in 31 of these obese patients at baseline (T0) and in 14 patients at 6 months after bariatric surgery (T6) to assess plasma glucose, insulin and PCSK9 levels. Plasma PCSK9 levels were also measured in 18 of these obese patients at T0 during a 2-h hyperinsulinemic-euglycemic clamp (HEC). At T0, PCSK9 levels were higher in obese patients than in controls (274.6 ± 76.7 ng/mL vs. 201.4 ± 53.3 ng/mL) and dropped after bariatric surgery (T6; 205.5 ± 51.7 ng/mL) along with BMI (from 44.1 ± 5.9 kg/m2 to 33.1 ± 5.6 kg/m2). At T6, there was also a decrease in plasma glucose (T0 vs. T6: 6.0 ± 1.8 vs. 5.0 ± 0.5 mmol/L) and insulin (15.7 ± 8.3 vs. 5.4 ± 2.1 mU/L) levels. At T0, plasma PCSK9 levels decreased during OGTT in obese patients, reaching a nadir of 262.0 ± 61.4 ng/mL at 120 min with a hyperinsulinemic peak of 75.1 ± 40.0 mU/L, at 60 min. Similarly, at T0 insulin infusion during 2-h HEC acutely reduced plasma PCSK9 levels in obese patients. The aforementioned OGTT-induced changes in plasma PCSK9 levels were not observed neither in nonobese healthy controls nor in obese patients after bariatric-surgery weight loss. CONCLUSIONS: These results suggest a pivotal role of adipose tissue and insulin resistance on PCSK9 homeostasis in severely obese patients.


Assuntos
Gastrectomia , Derivação Gástrica , Resistência à Insulina , Obesidade/cirurgia , Pró-Proteína Convertase 9/sangue , Perda de Peso , Adulto , Biomarcadores/sangue , Glicemia/metabolismo , Índice de Massa Corporal , Estudos de Casos e Controles , Feminino , Teste de Tolerância a Glucose , Humanos , Insulina/sangue , Masculino , Pessoa de Meia-Idade , Obesidade/sangue , Obesidade/diagnóstico , Obesidade/fisiopatologia , Projetos Piloto , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
14.
BMC Surg ; 20(1): 232, 2020 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-33046020

RESUMO

BACKGROUND: Bariatric surgery (BS) is considered as an effective solution to control morbid obesity. Food restrictions resulting from the operation may decrease dietary nutrient intakes, particularly during the first year after BS. This study mainly aimed to assess the adequacy of dietary nutrient intakes at 6th and 12th month after BS. METHOD: Of the severely obese participants in the Tehran obesity treatment study in 2015-2016, 58 patients undergoing Roux-En-Y gastric bypass (N = 16) or sleeve gastrectomy (N = 42) were selected from Tehran Obesity Treatment Center. To assess the patients' dietary intake, a three-day, 24-h dietary recall was obtained on three unscheduled days (two non-consecutive weekdays and one weekend day) at 6th and 12th month after BS. To evaluate the adequacy of nutrient intake, the patients' intakes were compared to the current dietary reference intakes (DRIs), including estimated average requirements (EAR) or Adequate Intakes (AI). RESULTS: The mean age of the participants (71% women) undergoing BS was 37 ± 8 years. Anthropometric parameters significantly decreased at the 12th month after BS. The percentage of energy from carbohydrate intake increased significantly between the 6th and 12th month after BS (P = 0.04). The mean ± SD of protein intake was lower than the recommended dosage with a dramatic decrease from 45 ± 30 to 31 ± 15 (g/day) between the two intervals (P = 0.001). The mean intake of saturated fatty acid (SFA) decreased dramatically (P < 0.001) from 6 to 12 month; however, the median intake of n3-polyunsaturated fatty acid (n3-PUFA) intake increased (P = 0.02). None of the participants showed nutrient intake adequacy in terms of biotin, fat soluble vitamins, pantothenic acid, potassium, and zinc. Moreover, less than 10% of the participants showed nutrient intake adequacy in terms of folate, magnesium, manganese, and calcium according to DRIs during the both intervals after BS. CONCLUSION: Bariatric surgery can reduce dietary intakes, which is more obvious 12 months after the surgery. Out of 21 micronutrients, nearly all could not met the EAR and were received < 50%, also had significant reduction from the 6th to12th month after surgery.


Assuntos
Cirurgia Bariátrica , Ingestão de Energia , Derivação Gástrica , Estado Nutricional , Adulto , Dieta , Feminino , Seguimentos , Humanos , Irã (Geográfico) , Masculino , Micronutrientes , Pessoa de Meia-Idade
16.
Rev Assoc Med Bras (1992) ; 66(9): 1289-1295, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33027460

RESUMO

Obesity is a chronic disease characterized by excess fat in the body and a real public health problem. Bariatric surgery, in recent decades, has gained space in its treatment due to the efficiency obtained in weight loss and significant reduction of the related comorbidities. The most commonly performed bariatric procedures include Roux-en-Y gastric bypass, adjustable gastric band, and laparoscopic sleeve gastrectomy. Possible complications described include fistulas, dehiscence, marginal ulcers, intestinal obstruction, internal hernias, and anastomotic stenosis. These complications may have unfavorable clinical outcomes since symptoms are often nonspecific. Abdominal computed tomography (CT) is an important tool in the evaluation of postoperative complications, both in the immediate and late postoperative status of patients undergoing such a procedure. We analyzed the most illustrative tomographic findings of the different complications after reducing gastroplasty in 203 patients without distinction of age or gender. Correct interpretation requires radiologists to understand the surgical technique since postoperative anatomy and surgery-specific complications may be obstacles to proper interpretation.


Assuntos
Cirurgia Bariátrica , Derivação Gástrica , Humanos , Laparoscopia , Obesidade Mórbida
18.
Ulus Travma Acil Cerrahi Derg ; 26(5): 678-684, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32946081

RESUMO

BACKGROUND: Palliative efficacy of conventional gastrojejunostomy in palliation of malignant gastric outlet obstruction is debatable. This study aims to compare the outcomes of conventional gastrojejunostomy and stomach-partitioning gastrojejunostomy and to explore the factors influencing the delayed gastric emptying after surgery in patients with malignant gastric outlet obstruction. METHODS: The study subjects were divided into the following two groups based on whether the stomach was partitioned or not: Conventional gastrojejunostomy and stomach-partitioning gastrojejunostomy. All demographic data, patient characteristics, postoperative outcomes, including delayed gastric emptying grade and 30-day complications were collected. Following the comparison of the clinical outcomes, risk factors for delayed gastric emptying were determined by regression models. RESULTS: Fifty-three patients were included in this study. Of these, 37 patients underwent conventional gastrojejunostomy, whereas 16 patients underwent stomach-partitioning gastrojejunostomy. Patient demographics and baseline characteristics were comparable between groups. Although 10 (27%) patients in the conventional gastrojejunostomy group had delayed gastric emptying grade B-C, no patient in the stomach-partitioning gastrojejunostomy group experienced this condition. There was no difference between the groups concerning hospital stay and complications. In multivariate regression analysis, having distant metastasis (OR=0.156, 95%CI 0.034-0.720, p=0.017) and stomach-partitioning (OR=0.127, 95%CI 0.025-0.653, p=0.014) were found as independent factors for the delayed gastric emptying. CONCLUSION: In patients with malignant gastric outlet obstruction, compared with conventional gastrojejunostomy, stomach-partitioning may provide favorable clinical outcomes by improving gastric emptying.


Assuntos
Derivação Gástrica , Esvaziamento Gástrico/fisiologia , Obstrução da Saída Gástrica/cirurgia , Cuidados Paliativos , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos , Resultado do Tratamento
19.
Sci Rep ; 10(1): 15127, 2020 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-32934313

RESUMO

Clinical biomarkers can predict normalization of HbA1c after Roux-en-Y gastric bypass (RYGB) surgery, but it is unclear which are the most predictive.The aim of this study was to compare biomarkers for insulin sensitivity and other clinical parameters in the prediction of normalization of HbA1c after RYGB surgery. This study included 99 (23 men) obese subjects (BMI > 35 kg/m2) undergoing a laparoscopic RYGB. Clinical and biochemical examinations were performed pre-operatively and up to 2 years after surgery. Pre-operatively, normal fasting glucose levels were found in 25 individuals (NG), prediabetes in 46 and type 2 diabetes (T2DM) in 28. At baseline IGF-I (SD), IGFBP-1 and adiponectin levels were low while leptin was high. Weight loss was observed in all three groups, most in the prediabetes group. After 2 years HbA1c was decreased in prediabetes and T2DM. In all three groups insulin, HOMA-IR, lipids and blood pressure improved, IGFBP-1 and adiponectin increased and leptin decreased. IGF-I (SD) increased only in T2DM. In those with prediabetes or T2DM (n = 74), HbA1c at 2 years correlated to baseline BMI (r = -0.27, p = 0.028), age (r = 0.43, p < 0.001), HbA1c (r = 0.37, p = 0.001) and IGFBP-1 (r = 0.25, p = 0.038), and was normalized in 45/74 (61%) at 1 year and in 36 subjects (49%) at 2 years. These responders were younger, had higher BMI, larger waist circumference, lower HbA1c and lower IGFBP-1 levels at baseline. In a multiple regression model age (negative, p = 0.021) and waist circumference (positive, p = 0.047) were the only predictors for normalized HbA1c. RYGB normalized HbA1c in 49% at two years follow-up, which was predicted by low baseline IGFBP-1 level, a marker of hepatic insulin sensitivty and insulin secretion. However,. younger age and larger waist circumference were the only predictors of normalized HbA1c in multivariate analysis.


Assuntos
Adiponectina/metabolismo , Biomarcadores/análise , Diabetes Mellitus Tipo 2/metabolismo , Derivação Gástrica/métodos , Hemoglobina A Glicada/metabolismo , Resistência à Insulina , Proteína 1 de Ligação a Fator de Crescimento Semelhante à Insulina/metabolismo , Adulto , Glicemia/análise , Índice de Massa Corporal , Diabetes Mellitus Tipo 2/patologia , Diabetes Mellitus Tipo 2/cirurgia , Feminino , Seguimentos , Hemoglobina A Glicada/análise , Humanos , Secreção de Insulina , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos
20.
Nutr Metab Cardiovasc Dis ; 30(12): 2363-2371, 2020 11 27.
Artigo em Inglês | MEDLINE | ID: mdl-32919861

RESUMO

BACKGROUND AND AIMS: Computed tomography (CT)-derived adipose tissue radiodensity represents a potential noninvasive surrogate marker for lipid deposition and obesity-related metabolic disease risk. We studied the effects of bariatric surgery on CT-derived adipose radiodensities in abdominal and femoral areas and their relationships to circulating metabolites in morbidly obese patients. METHODS AND RESULTS: We examined 23 morbidly obese women who underwent CT imaging before and 6 months after bariatric surgery. Fifteen healthy non-obese women served as controls. Radiodensities of the abdominal subcutaneous (SAT) and visceral adipose tissue (VAT), and the femoral SAT, adipose tissue masses were measured in all participants. Circulating metabolites were measured by NMR. At baseline, radiodensities of abdominal fat depots were lower in the obese patients as compared to the controls. Surprisingly, radiodensity of femoral SAT was higher in the obese as compared to the controls. In the abdominal SAT depot, radiodensity strongly correlated with SAT mass (r = -0.72, p < 0.001). After surgery, the radiodensities of abdominal fat increased significantly (both p < 0.01), while femoral SAT radiodensity remained unchanged. Circulating ApoB/ApoA-I, leucine, valine, and GlycA decreased, while glycine levels significantly increased as compared to pre-surgical values (all p < 0.05). The increase in abdominal fat radiodensity correlated negatively with the decreased levels of ApoB/ApoA-I ratio, leucine and GlycA (all p < 0.05). The increase in abdominal SAT density was significantly correlated with the decrease in the fat depot mass (r = -0.66, p = 0.002). CONCLUSION: Higher lipid content in abdominal fat depots, and lower content in femoral subcutaneous fat, constitute prominent pathophysiological features in morbid obesity. Further studies are needed to clarify the role of non-abdominal subcutaneous fat in the pathogenesis of obesity. CLINICAL TRIAL REGISTRATION NUMBER: NCT01373892.


Assuntos
Adiposidade , Metabolismo Energético , Gastrectomia , Derivação Gástrica , Tomografia Computadorizada Multidetectores , Obesidade Mórbida/cirurgia , Gordura Subcutânea Abdominal/diagnóstico por imagem , Adulto , Biomarcadores/sangue , Estudos de Casos e Controles , Feminino , Humanos , Espectroscopia de Ressonância Magnética , Metabolômica , Pessoa de Meia-Idade , Obesidade Mórbida/sangue , Obesidade Mórbida/diagnóstico por imagem , Obesidade Mórbida/fisiopatologia , Valor Preditivo dos Testes , Ensaios Clínicos Controlados Aleatórios como Assunto , Gordura Subcutânea Abdominal/metabolismo , Gordura Subcutânea Abdominal/fisiopatologia , Fatores de Tempo , Resultado do Tratamento
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