{"title":"Alcohol-free and low-strength drinks: friend or foe?","authors":"Thomas Marjot, Ashwin Dhanda","doi":"10.1038/s41575-024-01006-y","DOIUrl":"10.1038/s41575-024-01006-y","url":null,"abstract":"Consumption of no and low-alcohol (NoLo) beverages is now commonplace in modern society. However, the debate surrounding the relative risks and benefits of these products is nuanced and evolving, particularly in patients with a history of alcohol use disorder or alcohol-related liver disease. This Comment summarizes the major individual and public health implications of NoLo drinks in order to help inform our interactions with these patient groups.","PeriodicalId":18793,"journal":{"name":"Nature Reviews Gastroenterology &Hepatology","volume":"22 1","pages":"3-4"},"PeriodicalIF":45.9,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142490078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bile acid transport inhibitors in paediatric hepatology: more than just an itch","authors":"Tamir Diamond, Binita M. Kamath","doi":"10.1038/s41575-024-01008-w","DOIUrl":"10.1038/s41575-024-01008-w","url":null,"abstract":"Apical sodium-dependent bile acid transporter inhibitors have revolutionized care for children with genetic cholestasis. This Clinical Outlook discusses how this new class of drugs came into clinical practice and how they might benefit transplant-free survival for a multitude of indications.","PeriodicalId":18793,"journal":{"name":"Nature Reviews Gastroenterology &Hepatology","volume":"21 12","pages":"825-826"},"PeriodicalIF":45.9,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142488867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Roberta Caruso, Bernard C. Lo, Grace Y. Chen, Gabriel Núñez
{"title":"Host–pathobiont interactions in Crohn’s disease","authors":"Roberta Caruso, Bernard C. Lo, Grace Y. Chen, Gabriel Núñez","doi":"10.1038/s41575-024-00997-y","DOIUrl":"https://doi.org/10.1038/s41575-024-00997-y","url":null,"abstract":"<p>The mammalian intestine is colonized by trillions of microorganisms that are collectively referred to as the gut microbiota. The majority of symbionts have co-evolved with their host in a mutualistic relationship that benefits both. Under certain conditions, such as in Crohn’s disease, a subtype of inflammatory bowel disease, some symbionts bloom to cause disease in genetically susceptible hosts. Although the identity and function of disease-causing microorganisms or pathobionts in Crohn’s disease remain largely unknown, mounting evidence from animal models suggests that pathobionts triggering Crohn’s disease-like colitis inhabit certain niches and penetrate the intestinal tissue to trigger inflammation. In this Review, we discuss the distinct niches occupied by intestinal symbionts and the evidence that pathobionts triggering Crohn’s disease live in the mucus layer or near the intestinal epithelium. We also discuss how Crohn’s disease-associated mutations in the host disrupt intestinal homeostasis by promoting the penetration and accumulation of pathobionts in the intestinal tissue. Finally, we discuss the potential role of microbiome-based interventions in precision therapeutic strategies for the treatment of Crohn’s disease.</p>","PeriodicalId":18793,"journal":{"name":"Nature Reviews Gastroenterology &Hepatology","volume":"34 1","pages":""},"PeriodicalIF":65.1,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142488860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Delving the depths of ‘terra incognita’ in the human intestine — the small intestinal microbiota","authors":"Bahtiyar Yilmaz, Andrew J. Macpherson","doi":"10.1038/s41575-024-01000-4","DOIUrl":"10.1038/s41575-024-01000-4","url":null,"abstract":"The small intestinal microbiota has a crucial role in gastrointestinal health, affecting digestion, immune function, bile acid homeostasis and nutrient metabolism. The challenges of accessibility at this site mean that our knowledge of the small intestinal microbiota is less developed than of the colonic or faecal microbiota. Here, we summarize the features and fluctuations of the microbiota along the small intestinal tract, focusing on humans, and discuss physicochemical factors and assessment methods, including the technical challenges of investigating the low microbial biomass of the proximal small bowel. We highlight the essential protective mechanisms of the small intestine, including motility, the paracellular barrier and mucus, and secretory immunity, to show their roles in limiting excessive exposure of host tissues to microbial metabolites. We address current knowledge gaps, particularly the variability among individuals, the effects of dysbiosis of the small intestinal microbiota on health and how different taxa in small intestinal microbiota could compensate for each other functionally. The small intestinal microbiota has a key influence on digestion, immunity and nutrient metabolism but is poorly understood in comparison with the faecal and colonic microbiota. This Perspective discusses the features of the small intestinal microbiota, highlighting technical challenges, knowledge gaps and implications for health.","PeriodicalId":18793,"journal":{"name":"Nature Reviews Gastroenterology &Hepatology","volume":"22 1","pages":"71-81"},"PeriodicalIF":45.9,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142487841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Actions of thyroid hormones and thyromimetics on the liver","authors":"Rohit A. Sinha, Eveline Bruinstroop, Paul M. Yen","doi":"10.1038/s41575-024-00991-4","DOIUrl":"10.1038/s41575-024-00991-4","url":null,"abstract":"Thyroid hormones (triiodothyronine and thyroxine) are pivotal for metabolic balance in the liver and entire body. Dysregulation of the hypothalamus–pituitary–thyroid axis can contribute to hepatic metabolic disturbances, affecting lipid metabolism, glucose regulation and protein synthesis. In addition, reductions in circulating and intrahepatic thyroid hormone concentrations increase the risk of metabolic dysfunction-associated steatotic liver disease by inducing lipotoxicity, inflammation and fibrosis. Amelioration of hepatic metabolic disease by thyroid hormones in preclinical and clinical studies has spurred the development of thyromimetics that target THRB (the predominant thyroid hormone receptor isoform in the liver) and/or the liver itself to provide more selective activation of hepatic thyroid hormone-regulated metabolic pathways while reducing thyrotoxic side effects in tissues that predominantly express THRA such as the heart and bone. Resmetirom, a liver and THRB-selective thyromimetic, recently became the first FDA-approved drug for metabolic dysfunction-associated steatohepatitis (MASH). Thus, a better understanding of the metabolic actions of thyroid hormones and thyromimetics in the liver is timely and clinically relevant. Here, we describe the roles of thyroid hormones in normal liver function and pathogenesis of MASH, as well as some potential clinical issues that might arise when treating patients with MASH with thyroid hormone supplementation or thyromimetics. Thyroid hormones, triiodothyronine and thyroxine, are vital for metabolic homeostasis, and regulate essential hepatic functions. This Review summarizes the current knowledge of the role of thyroid hormones in the liver and examines the development of thyromimetics for liver disease.","PeriodicalId":18793,"journal":{"name":"Nature Reviews Gastroenterology &Hepatology","volume":"22 1","pages":"9-22"},"PeriodicalIF":45.9,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142448256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Liraglutide treatment in children with obesity","authors":"Eleni Kotsiliti","doi":"10.1038/s41575-024-01010-2","DOIUrl":"10.1038/s41575-024-01010-2","url":null,"abstract":"","PeriodicalId":18793,"journal":{"name":"Nature Reviews Gastroenterology &Hepatology","volume":"21 12","pages":"829-829"},"PeriodicalIF":45.9,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142435977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}