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Li Z, Chen Y, Xiong J, Lyu Q, Jiang B. Renal Function Following Bariatric Surgery: a Literature Review of Potential Mechanisms. Obes Surg 2022; 32:1734-1740. [PMID: 35243602 DOI: 10.1007/s11695-022-05985-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 11/26/2022]
Abstract
Obesity is a major and independent risk factor for onset and progression of many renal diseases. Bariatric surgery (BS) improves renal function by improving obesity-related metabolic disorders. However, the procedure is also accompanied by renal risks, including acute kidney injury (AKI) and oxalate nephropathy. Here, we briefly review the history and principle of frequently applied technique for BS and summarize the comprehensive BS effect on kidney function. Importantly, we highlight the possible molecular mechanisms associated with the recovery of renal function to provide novel ideas for future studies and clinical applications.
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Affiliation(s)
- Zhixin Li
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yu Chen
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Jinming Xiong
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Qinglan Lyu
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410013, China.
| | - Bimei Jiang
- Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410013, China.
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Exploring Renal Changes after Bariatric Surgery in Patients with Severe Obesity. J Clin Med 2022; 11:jcm11030728. [PMID: 35160179 PMCID: PMC8837063 DOI: 10.3390/jcm11030728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 02/04/2023] Open
Abstract
Obesity-related hyperfiltration leads to an increased glomerular filtration rate (GFR) and hyperalbuminuria. These changes are reversible after bariatric surgery (BS). We aimed to explore obesity-related renal changes post-BS and to seek potential mechanisms. Sixty-two individuals with severe obesity were prospectively examined before and 3, 6 and 12 months post-BS. Anthropometric and laboratory data, 24 h-blood pressure, renin-angiotensin-aldosterone system (RAS) components, adipokines and inflammatory markers were determined. Both estimated GFR (eGFR) and albuminuria decreased from the baseline at all follow-up times (p-for-trend <0.001 for both). There was a median (IQR) of 30.5% (26.2–34.4) reduction in body weight. Plasma glucose, glycosylated hemoglobin, fasting insulin and HOMA-index decreased at 3, 6 and 12 months of follow-up (p-for-trend <0.001 for all). The plasma aldosterone concentration (median (IQR)) also decreased at 12 months (from 87.8 ng/dL (56.8; 154) to 65.4 (56.8; 84.6), p = 0.003). Both leptin and hs-CRP decreased (p < 0.001) and adiponectine levels increased at 12 months post-BS (p = 0.017). Linear mixed-models showed that body weight (coef. 0.62, 95% CI: 0.32 to 0.93, p < 0.001) and plasma aldosterone (coef. −0.07, 95% CI: −0.13 to −0.02, p = 0.005) were the independent variables for changes in eGFR. Conversely, glycosylated hemoglobin was the only independent variable for changes in albuminuria (coef. 0.24, 95% CI: 0.06 to 0.42, p = 0.009). In conclusion, body weight and aldosterone are the main factors that mediate eGFR changes in obesity and BS, while albuminuria is associated with glucose homeostasis.
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Porat D, Azran C, Kais H, Dahan A. Managing the Unpredictable: Mechanistic Analysis and Clinical Recommendations for Lamotrigine Treatment after Bariatric Surgery. J Clin Med 2021; 10:jcm10235627. [PMID: 34884328 PMCID: PMC8658697 DOI: 10.3390/jcm10235627] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/24/2021] [Indexed: 01/05/2023] Open
Abstract
Bariatric surgery may alter the absorption and overall bioavailability of oral drugs. Lamotrigine is a major antiepileptic and mood stabilizer, that its use after bariatric surgery has not yet been studied. In this article, we provide a thorough mechanistic analysis of the effects of bariatric surgery on multiple mechanisms important for the absorption, bioavailability and overall pharmacokinetics of lamotrigine. Attributable to its pharmacokinetic properties and drug characteristics, the use of lamotrigine after bariatric surgery may be challenging. The complex situation in which some mechanisms may lead to increased drug exposure (e.g., decreased metabolism, weight loss) while others to its decrease (e.g., hampered dissolution/solubility, decreased gastric volume), may result in lowered, unchanged, or enhanced lamotrigine plasma levels after the surgery. We conclude with a set of clinical recommendations for lamotrigine treatment after bariatric surgery, aiming to allow better patient care, and emphasizing the extra caution that needs to be taken with these patients.
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Affiliation(s)
- Daniel Porat
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel
| | - Carmil Azran
- Clinical Pharmacy, Herzliya Medical Center, Herzliya 4685107, Israel
| | - Hasan Kais
- Division of Surgery, Shamir (Assaf Harofeh) Medical Center, Zerifin, Beer-Yaakov 7033001, Israel
| | - Arik Dahan
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel
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Optimized In Silico Modeling of Drug Absorption after Gastric Bypass: The Case of Metformin. Pharmaceutics 2021; 13:pharmaceutics13111873. [PMID: 34834288 PMCID: PMC8624529 DOI: 10.3390/pharmaceutics13111873] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 12/18/2022] Open
Abstract
Bariatric surgery is an effective treatment for severe obesity and related comorbidities, such as type II diabetes. Gastric bypass surgery shortens the length of the intestine, possibly leading to altered drug absorption. Metformin, a first-line treatment for type II diabetes, has permeability-dependent drug absorption, which may be sensitive to intestinal anatomic changes during bypass surgery, including Roux-en-Y gastric bypass (RYGB). Previous computer simulation data indicate increased metformin absorption after RYGB. In this study, we experimentally determined the region-dependent permeability of metformin, using the rat single-pass intestinal perfusion method (SPIP), which we then implemented into GastroPlusTM to assess the contribution of our SPIP data to post-RYGB metformin absorption modeling. Previous simulations allowed a good fit with in vivo literature data on healthy and obese control subjects. However, it was revealed that for post-RYGB drug absorption predictions, simply excluding the duodenum/jejunum is insufficient, as the software underestimates the observed plasma concentrations post-RYGB. By implementing experimentally determined segmental-dependent permeabilities for metformin in the remaining segments post-surgery, GastroPlusTM proved to fit the observed plasma concentration profile, making it a useful tool for predicting drug absorption after gastric bypass. Reliable evaluation of the parameters dictating drug absorption is required for the accurate prediction of overall absorption after bariatric surgery.
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Favre G, Grangeon-Chapon C, Iannelli A. Renal Function and Bariatric Surgery: an Ongoing Debate. Obes Surg 2021; 32:210-211. [PMID: 34398381 DOI: 10.1007/s11695-021-05631-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 07/22/2021] [Accepted: 07/22/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Guillaume Favre
- Department of Nephrology, University Hospital, Pasteur 1 Hospital, Nice, 06002, France. .,Centre National de La Recherche Scientifique, UMR 7073, Laboratory of Physiology and Molecular Medicine (LP2M), Nice, 06107, France. .,University of Côte D'Azur, Nice, 06000, France.
| | - Caroline Grangeon-Chapon
- Department of Nuclear Medicine, University Hospital of Nice, Archet 1 Hospital, Nice, 06200, France.,Department of Pharmacy, University Hospital, Nice, 06000, France
| | - Antonio Iannelli
- University of Côte D'Azur, Nice, 06000, France.,Digestive Unit, Archet 2 Hospital, University Hospital of Nice, Nice, 06202, France.,Inserm, U1065, Team 8 "Hepatic Complications of Obesity", Nice, 06204, France
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Vitiello A, Berardi G, Velotti N, Schiavone V, Musella M. Learning curve and global benchmark values of laparoscopic sleeve gastrectomy: results of first 100 cases of a newly trained surgeon in an Italian center of excellence. Updates Surg 2021; 73:1891-1898. [PMID: 34189700 PMCID: PMC8500908 DOI: 10.1007/s13304-021-01121-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 06/20/2021] [Indexed: 12/12/2022]
Abstract
To evaluate whether the learning curve for sleeve gastrectomy could be completed after 50 cases. First 100 patients undergoing LSG under a newly trained laparoscopic surgeon were included in this study and divided into two groups of 50 consecutive patients each. Perioperative outcomes were compared to recently introduced global benchmarks. Short-term weight loss was calculated as Total Weight Loss Percent (%TWL) and complications were classified in accordance with the Clavien–Dindo classification. CUSUM analysis was performed for operative time and hospital stay. Mean preoperative age and BMI were 41.8 ± 10.3 years and 42.9 ± 5.4 kg/m2, respectively. Demographics and rate of patients with previous surgery were comparable preoperatively in the two groups. Mean operative time was 92.1 ± 19.3 min and hospital stay was 3.4 ± 0.6 days as per our standard protocol of discharge. Uneventful postoperative course was recorded in 93% of patients and only one case of staple line leak was registered in the first 50 cases (group 1). No statistical difference in BMI and %TWL was found between the two groups at any time of follow-up. Comparison between two groups showed a significant reduction in hospital stay and operative time after the first 50 LSGs (p < 0.05). LSG can be performed by newly trained surgeons proctored by senior tutors. At least 50 cases are needed to meet global benchmark cut-offs and few more cases may be required to reach the plateau of the learning curve.
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Affiliation(s)
- Antonio Vitiello
- Advanced Biomedical Sciences Department, Naples "Federico II" University, AOU "Federico II", Via S. Pansini 5, 80131, Naples, Italy.
| | - Giovanna Berardi
- Advanced Biomedical Sciences Department, Naples "Federico II" University, AOU "Federico II", Via S. Pansini 5, 80131, Naples, Italy
| | - Nunzio Velotti
- Advanced Biomedical Sciences Department, Naples "Federico II" University, AOU "Federico II", Via S. Pansini 5, 80131, Naples, Italy
| | - Vincenzo Schiavone
- Advanced Biomedical Sciences Department, Naples "Federico II" University, AOU "Federico II", Via S. Pansini 5, 80131, Naples, Italy
| | - Mario Musella
- Advanced Biomedical Sciences Department, Naples "Federico II" University, AOU "Federico II", Via S. Pansini 5, 80131, Naples, Italy
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