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Update in lean metabolic dysfunction-associated steatotic liver disease

World Journal of Hepatology 2024年第3期16卷 452-464页

作者： Karina Sato-Espinoza Perapa Chotiprasidhi Mariella R Huaman Javier Díaz-Ferrer Division of Gastroenterology and Hepatology Department of MedicineMayo ClinicRochesterMN 55902United States obesity and metabolic Center for Obesity and Metabolic HealthLima 02002LimaPeru Hepatology Service Department of Digestive DiseasesHospital Nacional Edgardo Rebagliati MartinsLima 02002LimaPeru Medicine Faculty Universidad San Martin de PorresLima 02002LimaPeru Gastroenterology Service Clinica InternacionalLima 02002LimaPeru

BACKGROUND A new nomenclature consensus has emerged for liver diseases that were previously known as non-alcoholic fatty liver disease(NAFLD)and metabolic dysfunction-associated fatty liver disease(MAFLD).They are now defined as metabolic dysfunction-associated steatotic liver disease(MASLD),which includes cardiometabolic criteria in adults.This condition,extensively studied in obese or overweight patients,constitutes around 30%of the population,with a steady increase worldwide.Lean patients account for approximately 10%-15%of the MASLD population.However,the pathogenesis is complex and is not well understood.AIM To systematically review the literature on the diagnosis,pathogenesis,characteristics,and prognosis in lean MASLD patients and provide an interpretation of these new criteria.METHODS We conducted a comprehensive database search on PubMed and Google Scholar between January 2012 and September 2023,specifically focusing on lean NAFLD,MAFLD,or MASLD patients.We include original articles with patients aged 18 years or older,with a lean body mass index categorized according to the World Health Organization criteria,using a cutoff of 25 kg/m2 for the general population and 23 kg/m2 for the Asian population.RESULTS We include 85 studies in our analysis.Our findings revealed that,for lean NAFLD patients,the prevalence rate varied widely,ranging from 3.8%to 34.1%.The precise pathogenesis mechanism remained elusive,with associations found in genetic variants,epigenetic modifications,and adaptative metabolic response.Common risk factors included metabolic syndrome,hypertension,and type 2 diabetes mellitus,but their prevalence varied based on the comparison group involving lean patients.Regarding non-invasive tools,Fibrosis-4 index outperformed the NAFLD fibrosis score in lean patients.Lifestyle modifications aided in reducing hepatic steatosis and improving cardiometabolic profiles,with some medications showing efficacy to a lesser extent.However,lean NAFLD patients exhibited a worse prognosis compared to the obese

关键词： Lean Non-obese Non-alcoholic fatty liver disease metabolic dysfunction-associated fatty liver disease metabolic dysfunction-associated steatotic liver disease Guidelines Diagnosis Management Pathogenesis Treatment

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Gut microbial-host-isozymes are new targets for diseases

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Science China(Life Sciences) 2024年第7期67卷 1525-1527页

作者： Zhiwei Zhang Kai Wang Changtao Jiang Department of Physiology and Pathophysiology School of Basic Medical SciencesState Key Laboratory of Female Fertility PromotionCenter for Reproductive MedicinePeking UniversityBeijing 100191China center for obesity and metabolic Disease Research School of Basic Medical SciencesState Key Laboratory of Vascular Homeostasis and RemodelingPeking UniversityBeijing 100191China

Gut microbiota can interact with the host through lots of media including small molecular metabolites and proteins(Cani,2019;Fan and Pedersen,2021;Krautkramer et al.,2021).Recently,a new interaction pattern was identified,i.e.,gut microbiota can mimic the function of the host by producing a variety of enzymes with functions homologous to host enzymes.

关键词： al. diseases pattern

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Early-life famine exposure,adulthood obesity patterns,and risk of low-energy fracture

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Frontiers of Medicine 2024年第1期18卷 192-203页

作者： Hongyan Qi Chunyan Hu Jie Zhang Lin Lin Shuangyuan Wang Hong Lin Xiaojing Jia Yuanyue Zhu Yi Zhang Xueyan Wu Mian Li Min Xu Yu Xu Tiange Wang Zhiyun Zhao Weiqing Wang Yufang Bi Meng Dai Yuhong Chen Jieli Lu Department of Endocrine and metabolic Diseases Shanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Shanghai National Clinical Research center for Endocrine and metabolic Diseases Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People’s Republic of ChinaShanghai National Center for Translational MedicineRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China

Malnutrition in early life increases the risk of osteoporosis,but the association of early-life undernutrition combined with adulthood obesity patterns with low-energy fracture remains unknown.This study included 5323 community-dwelling subjects aged⩾40 years from China.Early-life famine exposure was identified based on the participants’birth dates.General obesity was assessed using the body mass index(BMI),and abdominal obesity was evaluated with the waist-to-hip ratio(WHR).Low-energy fracture was defined as fracture occurring after the age of⩾40 typically caused by falls from standing height or lower.Compared to the nonexposed group,the group with fetal,childhood,and adolescence famine exposure was associated with an increased risk of fracture in women with odds ratios(ORs)and 95%confidence intervals(CIs)of 3.55(1.57–8.05),3.90(1.57–9.71),and 3.53(1.05–11.88),respectively,but not in men.Significant interactions were observed between fetal famine exposure and general obesity with fracture among women(P for interaction=0.0008).Furthermore,compared with the groups with normal BMI and WHR,the group of women who underwent fetal famine exposure and had both general and abdominal obesity had the highest risk of fracture(OR,95%CI:3.32,1.17–9.40).These results indicate that early-life famine exposure interacts with adulthood general obesity and significantly increases the risk of low-energy fracture later in life in women.

关键词： famine obesity body mass index waist-to-hip ratio low-energy fracture

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Five Year Follow up after Surgical Treatment of Type 2 Diabetes with Laparoscopic Sleeve Gastrectomy Associated with a Duodenal Ileal Interposition

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Surgical Science 2024年第6期15卷 396-408页

作者： Augusto Cláudio de Almeida Tinoco Matheus Paula da Silva Netto Henrique Benedito Aureo Ludovico DePaula Luciana Janene El-Kadre Department of Digestive surgery Hospital So Jos do Ava Itaperuna Brazil Department of metabolic and obesity surgery Hospital So Jos do Ava Itaperuna Brazil

Introduction: Type 2 diabetes mellitus (T2D) is a chronic disease, primarily caused by a combination of defective insulin secretion and the inability of insulin-sensitive tissues to respond to insulin. Laparoscopic sleeve gastrectomy associated with duodenal ileal interposition (SGDII) has been shown to be a feasible treatment option for patients with T2D, as it provides improvement and control of glycemia, dyslipidemia and arterial hypertension. The aim of this study was to evaluate the mid and long-term results of SGDII for the treatment of diabetic patients, considering diabetic remission, weight loss and postoperative complications. Materials and Methods: Retrospective study with 96 patients with T2D submitted to SGDII, between 2010 and 2016. The glycated hemoglobin (HbA1c) value Results: Sixty-one patients (62.8%) were male, and 36 patients (37.2%) were female. The average age was 50.9 years. Median BMI was 33.43 kg/m2. The incidence of major postoperative complications in the first 30 days was 2.1%, with no mortality. Dyslipidemia control was sustained, after five years, in 62% of the patients. The five years follow-up demonstrated that 80% of patients had T2D remission at one year, 74.5% at three years and 61.8% at five years. Univariate analysis demonstrated that preoperative values of HbA1c and BMI, preoperative use of insulin, gender, and 30-day complication were not predictors of remission at all study intervals. The average duration of the disease was nine years and the mean glycated hemoglobin before surgery was 8.95%. Conclusion: SGDII resulted in good glycemic control at 5-years follow-up and represents a valid alternative for the treatment of T2D.

关键词： Diabetes surgery metabolic Syndrome Dyslipidemia Ileal Interposition metabolic surgery Bariatric surgery obesity

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Commentary:Gut microbiota reduce the risk of hyperuricemia and gout in the human body

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Acta Pharmaceutica Sinica B 2024年第1期14卷 433-435页

作者： Lin Wang Jianping Ye metabolic Disease Research center Zhengzhou University Affiliated Zhengzhou Central HospitalZhengzhou 450007China Research center for Basic Medicine Academy of Medical SciencesZhengzhou UniversityZhengzhou 450052China

Gout,a prevalent and painful metabolic disease often associated with obesity and aging,is caused by the deposition of urate crystals in joints,bones,or soft tissues1.Urate is an intermediate metabolite within the purine degradation pathway,predominantly derived from uric acid under physiological pH levels.Hyperuricemia occurs due to excessive uric acid production or insufficient excretion2,which is associated with various chronic diseases,including type 2 diabetes.

关键词： Uric acid Gout Microbiota Gut Uricase

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Commentary:Mammokine directs beige adipocytes to reserve energy for milk production in breast

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1472-1476页

作者： Lina Tang Jianping Ye metabolic Disease Research center Zhengzhou University Affiliated Zhengzhou Central HospitalZhengzhou 450007China Research center for Basic Medicine Academy of Medical SciencesZhengzhou UniversityZhengzhou 450052China

Beige/brown adipocytes play a crucial role in regulating the body’s overall energy balance.The thermogenic function is under the influence of various tissues,including the brain,muscles,and liver.However,the breast t... 详细信息

关键词： Beige Breast Epitheliail cells scRNA-seq Thermogenesis

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Indocyanine green:The guide to safer and more effective surgery

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World Journal of Gastrointestinal surgery 2024年第3期16卷 641-649页

作者： Pietro Fransvea Maria Michela Chiarello Valeria Fico Maria Cariati Giuseppe Brisinda Emergency surgery and Trauma center Fondazione Policlinico Universitario Agostino Gemelli IRCCSRome 00168Italy Department of surgery Azienda Sanitaria Provinciale di CosenzaCosenza 87100Italy Department of surgery Azienda Sanitaria Provinciale di CrotoneCrotone 88900Italy Department of Abdominal and Endocrine metabolic Medical and Surgical Sciences Fondazione Policlinico Universitario A Gemelli IRCCSRome 00168Italy

In this editorial we comment on the article by Kalayarasan and co-workers published in the recent issue of the World Journal of Gastrointestinal surgery.The authors present an interesting review on the use of indocyanine green fluo-rescence in different aspects of abdominal surgery.They also highlight future perspectives of the use of indocyanine green in mini-invasive surgery.Indo-cyanine green,used for fluorescence imaging,has been approved by the Food and Drug Administration and is safe for use in humans.It can be administered in-travenously or intra-arterially.Since its advent,there have been several advance-ments in the applications of indocyanine green,especially in the surgical field,such as intraoperative mapping and biopsy of sentinel lymph node,measurement of hepatic function prior to resection,in neurosurgical cases to detect vascular anomalies,in cardiovascular cases for patency and assessment of vascular ab-normalities,in predicting healing following amputations,in helping visualization of hepatobiliary anatomy and blood vessels,in reconstructive surgery,to assess flap viability and for the evaluation of tissue perfusion following major trauma and burns.For these reasons,the intraoperative use of indocyanine green has become common in a variety of surgical specialties and transplant surgery.Co-lorectal surgery has just lately begun to adopt this technique,particularly for perfusion visualization to prevent anastomotic leakage.The regular use of in-docyanine green coupled with fluorescence angiography has recently been pro-posed as a feasible tool to help improve patient outcomes.Using the best available data,it has been shown that routine use of indocyanine green in colorectal surgery reduces the rates of anastomotic leak.The use of indocyanine green is proven to be safe,feasible,and effective in both elective and emergency scenarios.However,additional robust evidence from larger-scale,high-quality studies is essential before incorporating indocyanine green guided surgery into standard practice.

关键词： Indocyanine green Colorectal surgery Fluorescence-guided surgery Gastrointestinal surgery Hepato-biliary surgery Pancreatic surgery Surgical oncology

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Piezo1 expression in chondrocytes controls endochondral ossification and osteoarthritis development

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Bone Research 2024年第1期12卷 199-214页

作者： Laura J.Brylka Assil-Ramin Alimy Miriam E.A.Tschaffon-Müller Shan Jiang Tobias Malte Ballhause Anke Baranowsky Simon von Kroge Julian Delsmann Eva Pawlus Kian Eghbalian Klaus Püschel Astrid Schoppa Melanie Haffner-Luntzer David J.Beech Frank Timo Beil Michael Amling Johannes Keller Anita Ignatius Timur A.Yorgan Tim Rolvien Thorsten Schinke Department of Osteology and Biomechanics University Medical Center Hamburg-Eppendorf20246 HamburgGermany Department of Trauma and Orthopedic surgery University Medical Center Hamburg-Eppendorf20246 HamburgGermany Institute of Orthopedic Research and Biomechanics University Medical Center UlmBadenWürttemberg89081 UlmGermany Department Legal Medicine University Medical Center Hamburg-Eppendorf20246 HamburgGermany Leeds Institute of Cardiovascular and metabolic Medicine School of MedicineUniversity of LeedsLS29JT LeedsUK

Piezo proteins are mechanically activated ion channels,which are required for mechanosensing functions in a variety of cell types.While we and others have previously demonstrated that the expression of Piezo1 in osteoblast lineage cells is essential for boneanabolic processes,there was only suggestive evidence indicating a role of Piezo1 and/or Piezo2 in cartilage.Here we addressed the question if and how chondrocyte expression of the mechanosensitive proteins Piezo1 or Piezo2 controls physiological endochondral ossification and pathological osteoarthritis(OA)development.Mice with chondrocyte-specific inactivation of Piezo1(Piezo1^(Col2a1Cre)),but not of Piezo2,developed a near absence of trabecular bone below the chondrogenic growth plate postnatally.Moreover,all Piezo1^(Col2a1Cre) animals displayed multiple fractures of rib bones at 7 days of age,which were located close to the growth plates.While skeletal growth was only mildly affected in these mice,OA pathologies were markedly less pronounced compared to littermate controls at 60 weeks of age.Likewise,when OA was induced by anterior cruciate ligament transection,only the chondrocyte inactivation of Piezo1,not of Piezo2,resulted in attenuated articular cartilage degeneration.Importantly,osteophyte formation and maturation were also reduced in Piezo1^(Col2a1Cre) mice.We further observed increased Piezo1 protein abundance in cartilaginous zones of human osteophytes.Finally,we identified Ptgs2 and Ccn2 as potentially relevant Piezo1 downstream genes in chondrocytes.Collectively,our data do not only demonstrate that Piezo1 is a critical regulator of physiological and pathological endochondral ossification processes,but also suggest that Piezo1 antagonists may be established as a novel approach to limit osteophyte formation in OA.

关键词： Piezo1 markedly ossification

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When smoke meets gut:deciphering the interactions between tobacco smoking and gut microbiota in disease development

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Science China(Life Sciences) 2024年第5期67卷 854-864页

作者： Bo Chen Guangyi Zeng Lulu Sun Changtao Jiang center of Basic Medical Research Institute of Medical Innovation and ResearchPeking University Third HospitalBeijing 100191China Department of Physiology and Pathophysiology School of Basic Medical SciencesState Key Laboratory of Vascular Homeostasis and RemodelingPeking UniversityBeijing 100191China center for obesity and metabolic Disease Research School of Basic Medical SciencesPeking UniversityBeijing 100191China State Key Laboratory of Women’s Reproductive Health and Fertility Promotion Peking UniversityBeijing 100191China Department of Endocrinology and Metabolism Peking University Third HospitalBeijing 100191China

Tobacco smoking is a prevalent and detrimental habit practiced worldwide,increasing the risk of various diseases,including chronic obstructive pulmonary disease(COPD),cardiovascular disease,liver disease,and cancer.Although previous research has explored the detrimental health effects of tobacco smoking,recent studies suggest that gut microbiota dysbiosis may play a critical role in these outcomes.Numerous tobacco smoke components,such as nicotine,are found in the gastrointestinal tract and interact with gut microbiota,leading to lasting impacts on host health and diseases.This review delves into the ways tobacco smoking and its various constituents influence gut microbiota composition and functionality.We also summarize recent advancements in understanding how tobacco smoking-induced gut microbiota dysbiosis affects host health.Furthermore,this review introduces a novel perspective on how changes in gut microbiota following smoking cessation may contribute to withdrawal syndrome and the degree of health improvements in smokers.

关键词： tobacco smoking gut microbiota dysbiosis nicotine smoking cessation

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Mechanism of action of the bile acid receptor TGR5 in obesity

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Acta Pharmaceutica Sinica B 2024年第2期14卷 468-491页

作者： Weijun Lun Qihao Yan Xinghua Guo Minchuan Zhou Yan Bai Jincan He Hua Cao Qishi Che Jiao Guo Zhengquan Su Guangdong Engineering Research center of Natural Products and New Drugs Guangdong Provincial University Engineering Technology Research Center of Natural Products and DrugsGuangdong Pharmaceutical UniversityGuangzhou 510006China Guangdong metabolic Disease Research center of Integrated Chinese and Western Medicine Key Laboratory of Glucolipid Metabolic DisorderMinistry of Education of ChinaGuangdong TCM Key Laboratory for Metabolic DiseasesGuangdong Pharmaceutical UniversityGuangzhou 510006China School of Public Health Guangdong Pharmaceutical UniversityGuangzhou 510310China School of Chemistry and Chemical Engineering Guangdong Pharmaceutical UniversityZhongshan 528458China Guangzhou Rainhome Pharm&Tech Co. Ltd.Science CityGuangzhou 510663China

G protein-coupled receptors(GPCRs)are a large family of membrane protein receptors,and Takeda G protein-coupled receptor 5(TGR5)is a member of this family.As a membrane receptor,TGR5 is widely distributed in different parts of the human body and plays a vital role in regulating metabolism,including the processes of energy consumption,weight loss and blood glucose homeostasis.Recent studies have shown that TGR5 plays an important role in glucose and lipid metabolism disorders such as fatty liver,obesity and diabetes.With the global obesity situation becoming more and more serious,a comprehensive explanation of the mechanism of TGR5 and filling the gaps in knowledge concerning clinical ligand drugs are urgently needed.In this review,we mainly explain the anti-obesity mechanism of TGR5 to promote the further study of this target,and show the electron microscope structure of TGR5 and review recent studies on TGR5 ligands to illustrate the specific binding between TGR5 receptor binding sites and ligands,which can effectively provide new ideas for ligand research and promote drug research.

关键词： obesity TGR5 Bile acids Ligand Appetite Metabolism GLP-1 Inflammation

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