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Liakh I, Sledzinski T, Kaska L, Mozolewska P, Mika A. Sample Preparation Methods for Lipidomics Approaches Used in Studies of Obesity. Molecules 2020; 25:E5307. [PMID: 33203044 PMCID: PMC7696154 DOI: 10.3390/molecules25225307] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
Obesity is associated with alterations in the composition and amounts of lipids. Lipids have over 1.7 million representatives. Most lipid groups differ in composition, properties and chemical structure. These small molecules control various metabolic pathways, determine the metabolism of other compounds and are substrates for the syntheses of different derivatives. Recently, lipidomics has become an important branch of medical/clinical sciences similar to proteomics and genomics. Due to the much higher lipid accumulation in obese patients and many alterations in the compositions of various groups of lipids, the methods used for sample preparations for lipidomic studies of samples from obese subjects sometimes have to be modified. Appropriate sample preparation methods allow for the identification of a wide range of analytes by advanced analytical methods, including mass spectrometry. This is especially the case in studies with obese subjects, as the amounts of some lipids are much higher, others are present in trace amounts, and obese subjects have some specific alterations of the lipid profile. As a result, it is best to use a method previously tested on samples from obese subjects. However, most of these methods can be also used in healthy, nonobese subjects or patients with other dyslipidemias. This review is an overview of sample preparation methods for analysis as one of the major critical steps in the overall analytical procedure.
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Affiliation(s)
- Ivan Liakh
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (I.L.); (T.S.); (P.M.)
- Department of Toxicology, Medical University of Gdańsk, Al. Gen. Hallera 107, 80-416 Gdańsk, Poland
| | - Tomasz Sledzinski
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (I.L.); (T.S.); (P.M.)
| | - Lukasz Kaska
- Department of General, Endocrine and Transplant Surgery, Faculty of Medicine, Medical University of Gdansk, Smoluchowskiego 17, 80-214 Gdansk, Poland;
| | - Paulina Mozolewska
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (I.L.); (T.S.); (P.M.)
| | - Adriana Mika
- Department of Pharmaceutical Biochemistry, Medical University of Gdansk, Debinki 1, 80-211 Gdansk, Poland; (I.L.); (T.S.); (P.M.)
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
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Comparative Effectiveness of Laparoscopic Adjustable Gastric Banding vs Laparoscopic Sleeve Gastrectomy in Adolescents-a National Registry-Based Study. Obes Surg 2019; 30:296-303. [PMID: 31478132 DOI: 10.1007/s11695-019-04155-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Most published work on bariatric surgery (BS) in adolescents describes outcomes after laparoscopic adjustable gastric banding (LAGB) or Roux-en-Y gastric bypass. We compared the efficacy of LAGB and laparoscopic sleeve gastrectomy (LSG) in adolescents. METHODS A National Bariatric Registry was queried for adolescents who underwent BS between June 2013 and December 2015. We collected data on weight and height at baseline and 1-year following surgery, subsequent hospitalizations, interventions, and mortality, which were compared at 30 days post-surgery and until last follow-up (maximum 4.2 years post-surgery). Mortality and hospitalization data were extracted from national databases. RESULTS Two hundred fifty-nine adolescents (60% females) aged 12-19 years were included. Mean age and body mass index (BMI) were 17.5 ± 1.2 years and 45.1 ± 5.0 kg/m2, respectively. LSG (n = 227, 87.6%) and LAGB (n = 32, 12.4%) were the most common procedures performed. LSG group achieved greater average at 1 year BMI loss compared to LAGB group (15.4 ± 4.7 kg/m2 vs. 10.3 ± 5.1 kg/m2 respectively; p = 0.0001) and higher rate with BMI < 30 kg/m2 1 year post-surgery (57.7% (n = 131) vs. 25% (n = 8), respectively; p = 0.0005). Males who underwent LSG reduced BMI more than their female counterparts (p = 0.0001), LSG was the strongest independent predictor for BMI < 30 after 1 year (OR = 4.1; 95% CI 1.7-9.9) followed by age (OR = 1.3; 95% CI1.0-1.6). No mortality was observed. Postoperative hospitalizations between the two groups did not differ (hazard ratio 2.4; 95% CI 0.7-7.9; p = 0.1). CONCLUSION Compared to LAGB, LSG is superior regarding weight loss with a similar risk of short- and long-term hospitalizations, complications, and interventional procedures. Males lose more weight following LSG.
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Comparative Effects of Medical Versus Surgical Weight Loss on Body Composition: a Pilot Randomized Trial. Obes Surg 2019; 29:2503-2510. [PMID: 30997619 DOI: 10.1007/s11695-019-03879-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Bariatric surgery leads to more rapid and greater weight loss (WL) compared to medical weight loss (MWL), but the differences in body composition (BC) changes for these modalities remain unclear. Due to the known health risks associated with central adiposity, we compared the changes in regional distribution of fat mass (FM) and lean mass (LM) after surgical versus MWL. METHODS In this 1:1:1 randomized trial among 15 persons with type 2 diabetes and body mass index (BMI) 30-39.9 kg/m2, we compared changes in BC, by dual-energy X-ray absorptiometry and abdominal computerized tomography, at time of 10%WL or 9 months after intervention (whichever came first). Participants underwent MWL, adjustable gastric banding (AGB), or Roux-en-Y gastric bypass (RYGB). Non-parametric tests evaluated BC differences (FM, LM, and visceral adipose tissue [VAT]) within and across all three arms and between pair-wise comparisons. RESULTS Twelve female participants (75% African American) completed the study. Patient age, BMI, and baseline anthropometric characteristics were similar across study arms. AGB lost more LM (MWL - 5.2%, AGB - 10.3%, p = 0.021) and VAT (MWL + 10.9%, AGB - 28.0%, p = 0.049) than MWL. RYGB tended to lose more VAT (MWL +10.9%, RYGB - 20.2%, p = 0.077) than MWL. AGB tended to lose more LM than RYGB (AGB - 12.38%, RYGB - 7.29%, p = 0.15). CONCLUSIONS At similar WL, AGB lost more LM and VAT than MWL; RYGB similarly lost more VAT. Given the metabolic benefits of reducing VAT and retaining LM, larger studies should confirm the changes in BC after surgical versus medical WL. CLINICAL TRIAL REGISTRATION NCTDK089557 - ClinicalTrials.gov.
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Laparoscopic sleeve gastrectomy in adolescents with or without syndromic obesity: two years follow-up. Eat Weight Disord 2018; 23:479-486. [PMID: 28070780 DOI: 10.1007/s40519-016-0348-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 12/13/2016] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Childhood obesity is an emerging health problem. Surgical treatment of obese adolescents, particularly those affected by congenital syndrome, represents a controversial issue. The aim of this multicenter study was to retrospectively assess the results of laparoscopic sleeve gastrectomy (LSG) in a cohort of adolescents affected by morbid obesity, with or without congenital syndromes. MATERIALS AND METHODS Forty-one obese (BMI 49 ± 6 kg/m2) adolescents with mean age of 16 ± 3 years (58.5% with previous intragastric balloon failure), and subjected to LSG, were retrospectively evaluated for complications rate, % excess weight loss (%EWL), and inhibition of co-morbidities after 2 years of follow-up. RESULTS All the operations were completed laparoscopically and no intra-operative complications were recorded. No mortality was recorded while peri- or post-operative complications only occurred in two patients (4.9%). The EWL% at 6, 12, and 24 months were 42.3, 58.3, and 59.4, respectively. %EWL was comparable (p = 0.7) between non-syndromic and syndromic obese adolescents at 24 months. Conversely patients with previous intragastric balloon surgery had a significant lower EWL (%) at 24 month (p < 0.01). Moreover, at the same time point, co-morbidity resolution rate was 78.2% while improvement rate was 57.6%. Specifically, remission rate of type 2 diabetes (T2DM), hypertension and obstructive sleep apnea (OSA) were 71, 75 and 61%, respectively. CONCLUSION LSG is advantageous in the treatment of morbidly obese juveniles concerning safety, weight loss and co-morbidity control and at same time presenting, a possible effective therapeutic option for patients affected by congenital syndrome.
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Benaiges D, Más-Lorenzo A, Goday A, Ramon JM, Chillarón JJ, Pedro-Botet J, Roux JAFL. Laparoscopic sleeve gastrectomy: More than a restrictive bariatric surgery procedure? World J Gastroenterol 2015; 21:11804-11814. [PMID: 26557004 PMCID: PMC4631978 DOI: 10.3748/wjg.v21.i41.11804] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/06/2015] [Accepted: 09/30/2015] [Indexed: 02/06/2023] Open
Abstract
Sleeve gastrectomy (SG) is a restrictive bariatric surgery technique that was first used as part of restrictive horizontal gastrectomy in the original Scopinaro type biliopancreatic diversion. Its good results as a single technique have led to a rise in its use, and it is currently the second most performed technique worldwide. SG achieves clearly better results than other restrictive techniques and is comparable in some aspects to the Roux-en-Y gastric bypass, the current gold standard in bariatric surgery. These benefits have been associated with different pathophysiologic mechanisms unrelated to weight loss such as increased gastric emptying and intestinal transit, and activation of hormonal mechanisms such as increased GLP-1 hormone and decreased ghrelin. The aim of this review was to highlight the salient aspects of SG regarding its historical evolution, pathophysiologic mechanisms, main results, clinical applications and perioperative complications.
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Toro-Ramos T, Goodpaster BH, Janumala I, Lin S, Strain GW, Thornton JC, Kang P, Courcoulas AP, Pomp A, Gallagher D. Continued loss in visceral and intermuscular adipose tissue in weight-stable women following bariatric surgery. Obesity (Silver Spring) 2015; 23:62-9. [PMID: 25384375 PMCID: PMC4308947 DOI: 10.1002/oby.20932] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 09/22/2014] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To assess changes in total (TAT), subcutaneous (SAT), visceral (VAT), and intermuscular (IMAT) adipose tissue by whole-body MRI before surgery and at 12 months and 24 months post-surgery in a subset of participants of the Longitudinal Assessment of Bariatric Surgery-2. METHODS From 0 to 12 months, n = 20 females and 3 males; from 12 to 24 months, n = 42 females and 7 males. Paired t-tests and GLM repeated measures examined changes in TAT, SAT, VAT, and IMAT at 12 and 24 months, with sex and age as covariates. RESULTS Changes from 0 to 12 months included weight (-41.9 ± 12.1 kg; -36%), TAT (-33.5 ± 9.6 kg; -56%), SAT (-29.2 ± 8.2 kg; -55%), VAT (-3.3 ± 1.6 kg; -73%), and IMAT (-0.99 ± 0.68 kg; -50%), all P < 0.001. In females, from 12 to 24 months, despite relative weight stability (-1.8 ± 6.5 kg, -2%; P = 0.085), VAT (-0.5 ± 0.7 kg; -30%; P < 0.001) and IMAT (-0.2 ± 0.4 kg; -14%; P = 0.012) decreased further. In males, from 12 to 24 months, weight increased (5.1 ± 5.2 kg; 6%; P = 0.04) with no significant changes in TAT or sub-depots. CONCLUSIONS Bariatric surgery continues to induce favorable changes in body composition, i.e., persistent adipose tissue loss at 24 months in the absence of further significant weight loss.
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Affiliation(s)
- Tatiana Toro-Ramos
- New York Obesity Nutrition Research Center, St. Luke’s-Roosevelt Hospital
- Institute of Human Nutrition & Dept. of Medicine, College of Physicians and Surgeons, Columbia University Medical Center
| | - Bret H. Goodpaster
- Division of Endocrinology and Metabolism, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Isaiah Janumala
- New York Obesity Nutrition Research Center, St. Luke’s-Roosevelt Hospital
| | - Susan Lin
- New York Obesity Nutrition Research Center, St. Luke’s-Roosevelt Hospital
- Center for Family and Community Medicine, Columbia University Medical Center
| | - Gladys W. Strain
- Laparoscopic and Bariatric Surgery Division, Weill Cornell Medical College, New York, New York
| | - John C. Thornton
- New York Obesity Nutrition Research Center, St. Luke’s-Roosevelt Hospital
| | - Patrick Kang
- Department of Radiology, St. Luke’s-Roosevelt Hospital, New York, New York
| | - Anita P. Courcoulas
- General Surgery-Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Alfons Pomp
- Laparoscopic and Bariatric Surgery Division, Weill Cornell Medical College, New York, New York
| | - Dympna Gallagher
- New York Obesity Nutrition Research Center, St. Luke’s-Roosevelt Hospital
- Institute of Human Nutrition & Dept. of Medicine, College of Physicians and Surgeons, Columbia University Medical Center
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Pedroso FE, Gander J, Oh PS, Zitsman JL. Laparoscopic vertical sleeve gastrectomy significantly improves short term weight loss as compared to laparoscopic adjustable gastric band placement in morbidly obese adolescent patients. J Pediatr Surg 2015; 50:115-22. [PMID: 25598106 DOI: 10.1016/j.jpedsurg.2014.10.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 10/06/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bariatric surgery has shown to be an effective weight loss treatment in morbidly obese adolescents. We compared outcomes of laparoscopic adjustable gastric band (LAGB) to laparoscopic vertical sleeve gastrectomy (VSG). METHODS A single institution, retrospective evaluation of a prospectively collected database of LAGB and VSG patients. RESULTS 174 morbidly obese patients underwent bariatric surgery at our institution between 2006 and 2013. 137 patients underwent LAGB and 37 underwent VSG. There were no significant differences between LAGB vs. VSG groups on day of surgery for age, gender, ethnicity, weight, and BMI. At 24-month follow up, patients who underwent VSG vs. LAGB displayed significantly greater percent excess weight loss (70.9±20.7 vs. 35.5±28.6, P=0.004) and percent preoperative BMI loss (32.3±11.0 vs. 16.4±12.7, P=0.004). Both VSG and LAGB significantly improved levels of HDL, HgA1c, and fasting glucose. LAGB patients had more complications than VSG patients. CONCLUSION Bariatric surgery is an effective treatment strategy in morbidly obese adolescents who have failed medical management. VSG results in greater short term weight and BMI loss when compared to LAGB. Longer follow up with more patients will be required to confirm the long term safety and efficacy of VSG in adolescent patients.
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Affiliation(s)
- Felipe E Pedroso
- New York Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, Department of General Surgery, Division of Pediatric Surgery, Center for Adolescent Bariatric Surgery
| | - Jeffery Gander
- New York Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, Department of General Surgery, Division of Pediatric Surgery, Center for Adolescent Bariatric Surgery; University of Virginia Health System, Department of Surgery, Division of Pediatric Surgery
| | - Pilyung Stephen Oh
- New York Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, Department of General Surgery, Division of Pediatric Surgery, Center for Adolescent Bariatric Surgery
| | - Jeffrey L Zitsman
- New York Presbyterian Morgan Stanley Children's Hospital, Columbia University Medical Center, Department of General Surgery, Division of Pediatric Surgery, Center for Adolescent Bariatric Surgery.
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Oberbach A, Neuhaus J, Inge T, Kirsch K, Schlichting N, Blüher S, Kullnick Y, Kugler J, Baumann S, Till H. Bariatric surgery in severely obese adolescents improves major comorbidities including hyperuricemia. Metabolism 2014; 63:242-9. [PMID: 24332707 DOI: 10.1016/j.metabol.2013.11.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 11/13/2013] [Accepted: 11/15/2013] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Serum uric acid (sUA) is believed to contribute to the pathogenesis of metabolic comorbidities like hypertension, insulin-resistance (IR) and endothelial dysfunction (EDF) in obese children. The present pilot study investigated the association between sUA concentrations and loss of body weight following laparoscopic sleeve gastrectomy (LSG) or laparoscopic Roux-en-Y-gastric bypass (RYGB) in severely obese adolescents. MATERIALS/METHODS 10 severely obese adolescents underwent either LSG (n=5) or RYGB (n=5). 17 normal weight, healthy, age- and gender-matched adolescents served as a normal weight peer group (NWPG). Pre- and 12 months postoperatively, sUA and relevant metabolic parameters (glucose homeostasis, transaminases, lipids) were compared. RESULTS Preoperatively, sUA was significantly elevated in patients with severe obesity compared to NWPG. Twelve months after LSG and RYGB, a significant decrease in sUA, BMI, CVD risk factors, hepatic transaminases, and HOMA-IR was observed. Reduction in SDS-BMI significantly correlated with changes in sUA. CONCLUSIONS sUA levels and metabolic comorbidities improved following bariatric surgery in severely obese adolescents. The impact of changes in sUA on long-term clinical complications of childhood obesity deserves further study.
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Affiliation(s)
- Andreas Oberbach
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Leipzig, Germany; University of Dresden, Department of Health Sciences/Public Health, Dresden, Germany
| | - Jochen Neuhaus
- Department of Urology, University of Leipzig, Leipzig, Germany
| | - Thomas Inge
- Division of Pediatric Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Katharina Kirsch
- Department of Cardiology, Heart Center, University of Leipzig, Leipzig, Germany
| | - Nadine Schlichting
- Integrated Research and Treatment Center (IFB) Adiposity Diseases, University Leipzig, Leipzig, Germany
| | - Susann Blüher
- Integrated Research and Treatment Center (IFB) Adiposity Diseases, University Leipzig, Leipzig, Germany; Department of Women and Child Health, Hospital for Children and Adolescents, University of Leipzig, Leipzig, Germany
| | - Yvonne Kullnick
- Integrated Research and Treatment Center (IFB) Adiposity Diseases, University Leipzig, Leipzig, Germany
| | - Joachim Kugler
- University of Dresden, Department of Health Sciences/Public Health, Dresden, Germany
| | - Sven Baumann
- Helmholtz Centre for Environmental Research, Department of Metabolomics, Leipzig, Germany
| | - Holger Till
- Department of Pediatric and Adolescent Surgery, Medical University of Graz, Graz, Austria.
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