scholarly journals Restored TDCA and Valine Levels Imitate the Effects of Bariatric Surgery

2021 ◽  
Author(s):  
Markus Quante ◽  
Jasper Iske ◽  
Timm Heinbokel ◽  
Bhavna N. Desai ◽  
Hector Rodriguez Cetina Biefer ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Metabolic Disorders ◽  
Underlying Mechanism ◽  
Diet Induced Obesity ◽  
Metabolomic Profiling ◽  
Sustained Weight Loss ◽  
Central Inhibition ◽  
Melanin Concentrating Hormone

AbstractObesity is widespread and linked to various co-morbidities. Bariatric surgery has been identified as the only effective treatment, promoting sustained weight loss and the remission of co-morbidities.We performed sleeve-gastrectomies (SGx) in a pre-clinical mouse model of diet-induced obesity (DIO), delineating the effects on long-term remission from obesity. SGx resulted in sustained weight loss and improved glucose tolerance. Mass-spectrometric metabolomic profiling revealed significantly reduced systemic levels of taurodeoxycholic acid (TDCA) and L-valine in DIO mice. Notably, TDCA and L-Valine levels were restored after SGx in both human and mice to levels comparable with lean controls.Strikingly, combined systemic treatment with TDCA and valine induced a profound weight loss in DIO mice analogous to effects observed after SGx. Utilizing indirect calorimetry, we confirmed reduced food intake as causal for TDCA/valine-mediated weight loss via a central inhibition of the melanin-concentrating hormone.In summary, we identified restored TDCA/valine levels as an underlying mechanism of SGx-derived effects on weight loss. Of translational relevance, TDCA and L-valine are presented as novel agents promoting weight loss while reversing obesity-associated metabolic disorders.

scholarly journals Restored TDCA and valine levels imitate the effects of bariatric surgery

eLife ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Markus Quante ◽  
Jasper Iske ◽  
Timm Heinbokel ◽  
Bhavna N Desai ◽  
Hector Rodriguez Cetina Biefer ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Food Intake ◽  
Indirect Calorimetry ◽  
Underlying Mechanism ◽  
Intrathecal Administration ◽  
Metabolomic Profiling ◽  
Sustained Weight Loss ◽  
Central Inhibition ◽  
Melanin Concentrating Hormone

Background: Obesity is widespread and linked to various co-morbidities. Bariatric surgery has been identified as the only effective treatment, promoting sustained weight loss and the remission of co-morbidities. Methods: Metabolic profiling was performed on diet induced obese (DIO) mice, lean mice and DIO mice that underwent sleeve gastrectomies. In addition, mice were subjected to i.p. injections with TDCA and valine. Indirect calorimetry was performed to assess food intake and energy expenditure. Expression of appetite regulating hormones was assessed through quantification of isolated RNA from dissected hypothalamus tissue. Subsequently, i.p. injections with an MCH antagonist and intrathecal administration of melanin-concentrating hormone were performed and weight loss was monitored. Results: Mass-spectrometric metabolomic profiling revealed significantly reduced systemic levels of TDCA and L-valine in DIO mice. TDCA and L-Valine levels were restored after sleeve gastrectomies (SGx) in both human and mice to levels comparable with lean controls. Systemic treatment with TDCA and valine induced a profound weight loss analogous to effects observed after SGx. Utilizing indirect calorimetry, we confirmed reduced food intake as causal for TDCA/valine-mediated weight loss via a central inhibition of the melanin-concentrating hormone. Conclusions: In summary, we identified restored TDCA/valine levels as an underlying mechanism of SGx-derived effects on weight loss. Of translational relevance, TDCA and L-valine are presented as novel agents promoting weight loss while reversing obesity-associated metabolic disorders.

scholarly journals Evaluation of the Effects of Bariatric Surgery in Terms of Weight Loss and Diabetes Remission in the Indian Population

2021 ◽  
pp. 1-7
Author(s):  
Manish Khaitan ◽  
Riddhish Gadani ◽  
Koshish Nandan Pokharel
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Gastric Bypass ◽  
Complete Remission ◽  
Predictive Factors ◽  
Indian Population ◽  
Diabetes Remission ◽  
Obese Patients ◽  
Sustained Weight Loss

<b><i>Objectives:</i></b> The growing prevalence of obesity rates worldwide is associated with an upsurge in its comorbidities, particularly type 2 diabetes mellitus (T2DM). Bariatric surgery is a proven treatment modality for producing sustained weight loss and resolution of associated T2DM providing marked improvement in quality of life with rapid recovery. This study aims to investigate the effects of laparoscopic sleeve gastrectomy (LSG), Roux-en-Y gastric bypass (RYGB), and mini-gastric bypass (MGB) on obese patients suffering from T2DM in the Indian population and their long-term association with regard to diabetes remission, resolution of comorbidities, and percentage EWL. <b><i>Methods:</i></b> Retrospective data of obese patients with T2DM (preoperative BMI 45.37 ± 8.1) who underwent bariatric surgery (RYGB, LSG, and MGB) were analyzed in this study over a period of 9 years. The mean follow-up period was 2.2 years. Following surgery, the clinical outcome on BMI, resolution of percentage weight loss, and T2DM were studied. The predictive factors of diabetic remission after surgery were determined. Student’s <i>t</i> test and ANOVA and McNemar’s test were applied. <b><i>Results:</i></b> Out of a total of 274 patients, complete remission of T2DM was achieved in 52.9% (<i>n</i> = 145) with mean fasting blood glucose and glycated hemoglobin values being 6.1 ± 0.769 (<i>p</i> = 0.00) at 1 year after surgery. The independent predictive factors of remission were age, gender, BMI, preoperative comorbidities, and % EWL. Gender had no correlation with the chance of achieving disease remission. <b><i>Conclusion:</i></b> Based on our results, bariatric surgery proves to be a successful treatment option resulting in sustained weight loss in obese patients suffering from T2DM. It is found to be beneficial for the long-term resolution of T2DM and improving comorbidities such as hypertension and dyslipidemia. The outcome of the different surgical methods is found to be similar for all patients irrespective of the independent predictors of complete remission.

Abstract #240 Weight Loss Trajectory Following Randomization to Bariatric Surgery on Long-Term Diabetes Outcomes

2018 ◽  
Vol 24 ◽  
pp. 49
Author(s):  
Keren Zhou ◽  
Kathy Wolski ◽  
Ali Aminian ◽  
Steven Malin ◽  
Philip Schauer ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Diabetes Outcomes ◽  
Trajectory Following

Long-Term Weight Loss and Psychological Functioning in Bariatric Surgery Patients

2012 ◽  
Author(s):  
Leslie M. Schuh ◽  
David B. Creel ◽  
Joseph Stote ◽  
Katharine Hudson ◽  
Karen K. Saules ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Psychological Functioning

scholarly journals Long-Term Iron and Vitamin B12 Deficiency Are Present after Bariatric Surgery, Despite the Widespread Use of Supplements

2021 ◽  
Vol 18 (9) ◽  
pp. 4541
Author(s):  
Mauro Lombardo ◽  
Arianna Franchi ◽  
Roberto Biolcati Rinaldi ◽  
Gianluca Rizzo ◽  
Monica D’Adamo ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Vitamin B12 ◽  
Vitamin B12 Deficiency ◽  
Ideal Body Weight ◽  
Excess Weight ◽  
Nutritional Deficiencies ◽  
Average Percentage ◽  
Nutritional Studies

There are few long-term nutritional studies in subjects undergoing bariatric surgery that have assessed weight regain and nutritional deficiencies. In this study, we report data 8 years after surgery on weight loss, use of dietary supplements and deficit of micronutrients in a cohort of patients from five centres in central and northern Italy. The study group consisted of 52 subjects (age: 38.1 ± 10.6 y, 42 females): 16 patients had Roux-en-Y gastric bypass (RYGB), 25 patients had sleeve gastrectomy (SG) and 11 subjects had adjustable gastric banding (AGB). All three bariatric procedures led to sustained weight loss: the average percentage excess weight loss, defined as weight loss divided by excess weight based on ideal body weight, was 60.6% ± 32.3. Despite good adherence to prescribed supplements, 80.7% of subjects (72.7%, AGB; 76.7%, SG; 93.8 %, RYGB) reported at least one nutritional deficiency: iron (F 64.3% vs. M 30%), vitamin B12 (F 16.6% vs. M 10%), calcium (F 33.3% vs. M 0%) and vitamin D (F 38.1% vs. M 60%). Long-term nutritional deficiencies were greater than the general population among men for iron and among women for vitamin B12.

Grazing Behavior Hinders Weight Loss in Long-Term Post Bariatric Surgery: a Cross-Sectional Study

2021 ◽  
Author(s):  
Larissa Cristina Lins Berber ◽  
Mariana Silva Melendez-Araújo ◽  
Eduardo Yoshio Nakano ◽  
Kênia Mara Baiocchi de Carvalho ◽  
Eliane Said Dutra
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Grazing Behavior ◽  
Post Bariatric Surgery

scholarly journals Is One Anastomosis Gastric Bypass with a Biliopancreatic Limb of 150 cm Effective in the Treatment of People with Severe Obesity with BMI > 50?

2021 ◽  
Author(s):  
Arnaud Liagre ◽  
Francesco Martini ◽  
Radwan Kassir ◽  
Gildas Juglard ◽  
Celine Hamid ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Gastric Bypass ◽  
Severe Obesity ◽  
Postoperative Mortality ◽  
One Anastomosis Gastric Bypass ◽  
Sustained Weight Loss ◽  
Biliopancreatic Limb ◽  
Percentage Excess Weight Loss

Abstract Purpose The treatment of people with severe obesity and BMI > 50 kg/m2 is challenging. The present study aims to evaluate the short and mid-term outcomes of one anastomosis gastric bypass (OAGB) with a biliopancreatic limb of 150 cm as a primary bariatric procedure to treat those people in a referral center for bariatric surgery. Material and Methods Data of patients who underwent OAGB for severe obesity with BMI > 50 kg/m2 between 2010 and 2017 were collected prospectively and analyzed retrospectively. Follow-up comprised clinical and biochemical assessment at 1, 3, 6, 12, 18, and 24 months postoperatively, and once a year thereafter. Results Overall, 245 patients underwent OAGB. Postoperative mortality was null, and early morbidity was observed in 14 (5.7%) patients. At 24 months, the percentage total weight loss (%TWL) was 43.2 ± 9, and percentage excess weight loss (%EWL) was 80 ± 15.7 (184 patients). At 60 months, %TWL was 41.9 ± 10.2, and %EWL was 78.1 ± 18.3 (79 patients). Conversion to Roux-en-Y gastric bypass was needed in three (1.2%) patients for reflux resistant to medical treatment. Six patients (2.4%) had reoperation for an internal hernia during follow-up. Anastomotic ulcers occurred in three (1.2%) patients. Only two patients (0.8%) underwent a second bariatric surgery for insufficient weight loss. Conclusion OAGB with a biliopancreatic limb of 150 cm is feasible and associated with sustained weight loss in the treatment of severe obesity with BMI > 50 kg/m2. Further randomized studies are needed to compare OAGB with other bariatric procedures in this setting. Graphical abstract

scholarly journals Endoscopic Evaluation of Symptomatic Patients following Bariatric Surgery: A Literature Review

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Miral Subhani ◽  
Kaleem Rizvon ◽  
Paul Mustacchia
Keyword(s):  
Bariatric Surgery ◽  
Weight Loss ◽  
Abdominal Pain ◽  
Drug Therapy ◽  
Upper Gastrointestinal Bleeding ◽  
Comorbid Conditions ◽  
Endoscopic Evaluation ◽  
Number Of Patients ◽  
Upper Gastrointestinal

Obesity is an epidemic in our society, and rates continue to rise, along with comorbid conditions associated with obesity. Unfortunately, obesity remains refractory to behavioral and drug therapy but has shown response to bariatric surgery. Not only can long-term weight loss be achieved, but a majority of patients have also shown improvement of the comorbid conditions associated with obesity. A rise in the use of surgical therapy for management of obesity presents a challenge with an increased number of patients with problems after bariatric surgery. It is important to be familiar with symptoms following bariatric surgery, such as nausea/vomiting, abdominal pain, dysphagia, and upper gastrointestinal bleeding and to utilize appropriate available tests for upper gastrointestinal tract pathology in the postoperative period.

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