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Changes in serum albumin and liver enzymes following three different types of bariatric surgery: six-month follow-up. A retrospective cohort study
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BACKGROUND: Few reports have examined the effects of Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB) and sleeve gastrectomy (SG) on changes to serum albumin (Alb) and liver enzyme levels. OBJECTIVE: To compare short-term post-surgery changes in serum Alb, aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALKP) levels. Body composition changes were also measured and compared among three groups. DESIGN AND SETTING: Retrospective cohort study conducted in Tehran, Iran. METHODS: 151 OAGB, RYGB and SG patients referred to the obesity clinic of Hazrat-e Rasool General Hospital, Tehran, Iran, were evaluated. Physical characteristics and biochemical parameters were measured pre-surgery and then after three and six months. RESULTS: Through repeated measurements to determine intragroup changes, significant changes in serum AST (P = 0.003) and ALT (P < 0.001) were observed in follow-ups. However, Alb levels did not change (P = 0.413). Body fat, fat-free mass and muscle mass decreased significantly in each group (P < 0.05). In a univariate general linear model for determining intergroup changes, SG showed greater decreases in ALT and AST at three and six months (P < 0.05) and in ALKP at six months (P = 0.037), compared with OAGB. There were no significant differences in Alb levels. Also, RYGB had a greater effect on reducing fat percentage (three months, P = 0.011; six months, P = 0.059) and fat mass (three months, P = 0.042) than OAGB. CONCLUSION: SG and RYGB may be superior to OAGB in reducing liver enzymes and body fat, respectively. However, Alb levels showed no significant differences.
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“and RYGB achieved a 28.5% decrease [110].”
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 [110]
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Tasabehji, D., Saleh, S., & Mokadem, M. (2025) · Journal of Clinical Medicine · doi:10.3390/jcm14124012 · Cited by 14
Metadata
- Authors
- Zadeh, M. H., Zamaninour, N., Ansar, H., Kabir, A., Pazouki, A., & Farsani, G. M.
- Affiliations
- Tehran University of Medical Sciences (IR)
- Iran University of Medical Sciences (IR)
- Corresponding author
- Farsani, Gholamreza Mohammadi
- ORCID
- Venue
- Sao Paulo Medical Journal
- Publisher
- FapUNIFESP (SciELO)
- Published
- 2021-12
- Volume
- 139
- Issue
- 6
- Pages
- 598-606
- ISSN
- 0035-0362 (ISSN-L)
- 1806-9460
- 1516-3180
- PMC
- PMC9634836
- OpenAlex
- W3206891423
- Cited by
- 14
- References
- 1
- Citations by year
- 2026: 3 · 2025: 5 · 2024: 2 · 2023: 2 · 2022: 2
- FWCI
- 1.41
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- Locations
- Sao Paulo Medical Journal (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, cc-by)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
- Health Sciences › Medicine › Surgery › Body Contouring and Surgery
- Health Sciences › Medicine › Surgery › Minimally Invasive Surgical Techniques
- Keywords
- bariatric surgery, Roux-en-Y gastric bypass, one anastomosis gastric bypass, sleeve gastrectomy, serum albumin, liver enzymes, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, body composition, fat loss, obesity
- MeSH terms
- Follow-Up Studies, Gastrectomy, Humans, Iran, Liver, Obesity, Morbid, Retrospective Studies, Serum Albumin, Gastric Bypass, Treatment Outcome, Bariatric Surgery
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