Platelet Counts and Liver Enzymes after Bariatric Surgery
Open accessAbstract
Background. Obesity is characterized by liver steatosis, chronic inflammation, and increased liver enzymes, that is, gamma-glutamyltransferase (GGT) and alanine aminotransferase (ALT), markers for nonalcoholic fatty liver disease (NAFLD) and liver fat content. Increased platelet counts (PCs) are associated with inflammatory conditions and are a valuable biomarker of the degree of fibrosis in NAFLD. We investigated alterations in PC, GGT, and ALT after biliopancreatic diversion with duodenal switch (BPD-DS) and Roux-en-Y gastric bypass (RYGBP).Methods. Ten morbidly obese patients (body mass index, BMI:53.5±3.8 kg/m 2) who underwent BPD-DS were evaluated preoperatively (baseline) and 1 year (1st followup) and 3 years (2nd followup) after surgery and compared with 21 morbidly obese patients (BMI:42.3±5.2 kg/m 2) who underwent RYGBP.Results. Over the 3 years of followup, changes in BPD-DS and RYGBP patients (BPD-DS/RYGBP) were as follows: BMI (−44%/−24%), GGT (−63%/−52%), and ALT (−48%/−62%). PC decreased (−21%) statistically significantly only in BPD-DS patients.Conclusions. Morbidly obese patients treated by RYGBP or BPD-DS show sustained reductions in BMI, ALT, and GGT. The decrease in PC and liver enzymes after BPD-DS may reflect a more pronounced decrease of liver-fat-content-related inflammation and, as a result, a lowered secondary thrombocytosis.
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RYGB reduces ALT by 61.3% over three years.
“RYGB continued to show progressive benefits, with ALT declining by 61.3% over three years [111].”
From Impact of Bariatric Surgery and Endoscopic Therapies on Liver Health in Metabolic Dysfunction-Associated Steatotic Liver Disease: A Review (2025) · cites this paper as [111]
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Cites
Dixon, J., Bhathal, P., & O'Brien, P. (2006) · Obesity Surgery · doi:10.1381/096089206778663805 · Cited by 212 · see citing works
Surgical Treatment of Non-Alcoholic Steatohepatitis and Non-Alcoholic Fatty Liver Disease
Weiner, R. A. (2010) · Digestive Diseases · doi:10.1159/000282102 · Cited by 113 · see citing works
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Research works printed but not linked: 26
- [1]Sjöström L Lindroos AK Peltonen M Lifestyle, diabetes, and cardiovascular risk factors 10 years after bariatric surgery The New England Journal of Medicine 2004 351 26 2683 2693 2-s2.0-10844295087 15616203
- [2]Greenway SE Greenway FL III Klein S Effects of obesity surgery on non-insulin-dependent diabetes mellitus Archives of Surgery 2002 137 10 1109 1117 2-s2.0-0036794143 12361414
- [3]Sjöström L Narbro K Sjöström CD Effects of bariatric surgery on mortality in Swedish obese subjects The New England Journal of Medicine 2007 357 8 741 752 17715408
- [4]Adams TD Gress RE Smith SC Long-term mortality after gastric bypass surgery The New England Journal of Medicine 2007 357 8 753 761 2-s2.0-34548075820 17715409
- [5]Fisch IR Freedman SH Smoking, oral contraceptives, and obesity. Effects on white blood cell count Journal of the American Medical Association 1975 234 5 500 506 2-s2.0-0016842252 1242167
- [6]Visser M Bouter LM McQuillan GM Wener MH Harris TB Elevated C-reactive protein levels in overweight and obese adults Journal of the American Medical Association 1999 282 22 2131 2135 2-s2.0-0033537013 10591334
- [7]Lemieux I Pascot A Prud’homme D Elevated C-reactive protein: another component of the atherothrombotic profile of abdominal obesity Arteriosclerosis, Thrombosis, and Vascular Biology 2001 21 6 961 967 2-s2.0-0035717514 11397704
- [8]Machado M Cortez-Pinto H Non-alcoholic fatty liver disease and insulin resistance European Journal of Gastroenterology and Hepatology 2005 17 8 823 826 2-s2.0-23044503205 16003131
- [9]Marchesini G Babini M Nonalcoholic fatty liver disease and the metabolic syndrome Minerva Cardioangiologica 2006 54 2 229 239 2-s2.0-33745637207 16778754
- [12]Andreasson B Johansson P Samuelsson J Essential thrombocytosis: a criteria diagnosis. Important to differentiate from reactive/secondary thrombocytosis Lakartidningen 2009 106 110 113 19248460
- [13]Schafer AI Thrombocytosis The New England Journal of Medicine 2004 350 12 1211 1219 2-s2.0-1542615163 15028825
- [14]Dallal RM Leighton J Trang A Analysis of leukopenia and anemia after gastric bypass surgery Surgery for Obesity and Related Diseases 2012 8 2 164 168 2-s2.0-79953204663 21459685
- [15]Liaw YF Tai DI Chu CM Chen TJ The development of cirrhosis in patients with chronic type B hepatitis: a prospective study Hepatology 1988 8 3 493 496 2-s2.0-0023762809 3371868
- [16]Yoneda M Fujii H Sumida Y Platelet count for predicting fibrosis in nonalcoholic fatty liver disease Journal of Gastroenterology 2011 46 11 1300 1306 21750883
- [18]Sakçak I Avşar MF Hamamci EO Comparison of early and late changes in immunoglobulins and acute phase reactants after laparoscopic adjustable gastric banding in patients with morbid obesity Obesity Surgery 2010 20 5 610 615 2-s2.0-77953287294 20066501
- [19]Johansson HE Haenni A Anders Karlsson F Bileopancreatic diversion with duodenal switch lowers both early and late phases of glucose, insulin and proinsulin responses after meal Obesity Surgery 2010 20 5 549 558 2-s2.0-77953285904 20198453
- [20]Johansson H-E Haenni A Ohrvall M Magnus S Björn Z Alterations in proinsulin and insulin dynamics, HDL cholesterol and ALT after gastric bypass surgery. A 42-Months follow-up study Obesity Surgery 2009 19 5 601 607 2-s2.0-67349130115 19229660
- [21]Buchwald H Buchwald JN Evolution of operative procedures for the management of morbid obesity 1950–2000 Obesity Surgery 2002 12 5 705 717 2-s2.0-0036806999 12448398
- [22]Buckley MF James JW Brown DE A novel approach to the assessment of variations in the human platelet count Thrombosis and Haemostasis 2000 83 3 480 484 10744157
- [23]Lee YH Pratley RE The evolving role of inflammation in obesity and the metabolic syndrome Current Diabetes Reports 2005 5 1 70 75 2-s2.0-14044257221 15663921
- [24]Wisse BE The inflammatory syndrome: the role of adipose tissue cytokines in metabolic disorders linked to obesity Journal of the American Society of Nephrology 2004 15 11 2792 2800 2-s2.0-16244381893 15504932
- [25]Samocha-Bonet D Justo D Rogowski O Platelet counts and platelet activation markers in obese subjects Mediators of Inflammation 2008 2008 6 pages 2-s2.0-43849092981 834153 PMC2276682 18385810
- [26]Collins CE Rampton DS Platelets in inflammatory bowel disease: pathogenetic role and therapeutic implications Alimentary Pharmacology and Therapeutics 1997 11 2 237 247 2-s2.0-0031109894 9146760
- [27]Anfossi G Russo I Trovati M Platelet dysfunction in central obesity Nutrition, Metabolism and Cardiovascular Diseases 2009 19 6 440 449 2-s2.0-67549127239 19346117
- [28]Davì G Guagnano MT Ciabattoni G Platelet activation in obese women: role of inflammation and oxidant stress Journal of the American Medical Association 2002 288 16 2008 2014 2-s2.0-0037164094 12387653
- [29]Poynard T Yuen MF Ratziu V Lung Lai C Viral hepatitis C The Lancet 2003 362 9401 2095 2100 2-s2.0-0346157289 14697814
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Raoux, L., Moszkowicz, D., Vychnevskaia, K., Poghosyan, T., Beauchet, A., Clauser, S., Bretault, M., Czernichow, S., Carette, C., & Bouillot, J.-L. (2017) · Obesity Surgery · doi:10.1007/s11695-016-2292-z · Cited by 34 · see citing works
Tasabehji, D., Saleh, S., & Mokadem, M. (2025) · Journal of Clinical Medicine · doi:10.3390/jcm14124012 · Cited by 14 · see citing works
- Authors
- Johansson, H.-E., Haenni, A., & Zethelius, B.
- Affiliations
- Uppsala University (SE)
- Corresponding author
- Johansson, Hans-Erik
- Venue
- Journal of Obesity
- Publisher
- Hindawi Limited
- Published
- 2013
- Volume
- 2013
- Pages
- 1-5
- ISSN
- 2090-0708 (ISSN-L)
- 2090-0716
- PMC
- PMC3590647
- OpenAlex
- W2083726700
- Cited by
- 25
- References
- 2
- Citations by year
- 2025: 3 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 1 · 2019: 3 · 2018: 2 · 2017: 4 · 2016: 4 · 2015: 2
- FWCI
- 1.97
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Journal of Obesity (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Thureus Fund
- Topics
- Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
- Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
- Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
- Keywords
- platelet count, liver enzymes, gamma-glutamyl transferase, alanine aminotransferase, bariatric surgery, biliopancreatic diversion with duodenal switch, Roux-en-Y gastric bypass, morbid obesity, non-alcoholic fatty liver disease, hepatic steatosis, secondary thrombocytosis, liver inflammation, weight loss
- MeSH terms
- Adult, Alanine Transaminase, Fatty Liver, Female, gamma-Glutamyltransferase, Humans, Inflammation, Liver, Male, Middle Aged, Obesity, Morbid, Platelet Count, Gastric Bypass, Weight Loss, Biliopancreatic Diversion, Body Mass Index, Bariatric Surgery, Non-alcoholic Fatty Liver Disease
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