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Intestinal mitochondria and dietary lipids 肠道线粒体和膳食脂质
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2024-01-30 DOI: 10.1038/s41575-024-00899-z
Eleni Kotsiliti
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引用次数: 0
A role for the gut microbiota in immune checkpoint inhibitor-induced colitis 肠道微生物群在免疫检查点抑制剂诱发的结肠炎中的作用
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2024-01-23 DOI: 10.1038/s41575-024-00897-1
Katrina Ray
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引用次数: 0
RNA modification-mediated mRNA translation regulation in liver cancer: mechanisms and clinical perspectives 肝癌中 RNA 修饰介导的 mRNA 翻译调控:机制与临床视角
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2024-01-19 DOI: 10.1038/s41575-023-00884-y
Shuibin Lin, Ming Kuang
Malignant liver cancer is characterized by rapid tumour progression and a high mortality rate, whereas the molecular mechanisms underlying liver cancer initiation and progression are still poorly understood. The dynamic and reversible RNA modifications have crucial functions in gene expression regulation by modulating RNA processing and mRNA translation. Emerging evidence has revealed that alterations in RNA modifications facilitate the selective translation of oncogenic transcripts and promote the diverse tumorigenic processes of liver cancer. In this Review, we first highlight the current progress on the functions and mechanisms underlying RNA modifications in the regulation of mRNA translation and then summarize the exciting discoveries on aberrant RNA modification-mediated mRNA translation in the regulation of tumour initiation, metastasis, metabolism, tumour microenvironment, and drug and radiotherapy resistance in liver cancer. Finally, we discuss the diagnostic and therapeutic potentials of targeting RNA modifications and mRNA translation for the clinical management of liver cancer. RNA modifications are crucial in regulating mRNA translation. This Review provides a comprehensive overview of the molecular mechanisms underlying RNA modifications in mRNA translation regulation, and discusses the diagnostic and therapeutic potentials of targeting RNA modifications for liver cancer management.
恶性肝癌的特点是肿瘤进展快、死亡率高,但人们对肝癌发生和发展的分子机制仍然知之甚少。动态和可逆的 RNA 修饰通过调节 RNA 加工和 mRNA 翻译,在基因表达调控中发挥着关键作用。新的证据显示,RNA修饰的改变有助于致癌转录本的选择性翻译,并促进肝癌的多种致瘤过程。在这篇综述中,我们首先强调了目前在 RNA 修饰调控 mRNA 翻译的功能和机制方面取得的进展,然后总结了在 RNA 修饰介导的 mRNA 翻译异常调控肝癌的肿瘤发生、转移、代谢、肿瘤微环境以及药物和放化疗耐药性方面令人兴奋的发现。最后,我们讨论了以 RNA 修饰和 mRNA 翻译为靶点对肝癌临床治疗的诊断和治疗潜力。
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引用次数: 0
Effect of expectation of gluten intake on non-coeliac gluten sensitivity 预期麸质摄入量对非乳糜泻麸质敏感性的影响
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2024-01-15 DOI: 10.1038/s41575-024-00894-4
Jordan Hindson
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引用次数: 0
Contrasting aspects of human excreta 人类排泄物的不同方面。
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2024-01-12 DOI: 10.1038/s41575-024-00892-6
Seung-min Park
Our Ig Nobel Prize-winning smart toilet research confronts societal taboos and uses humour as a gateway to advance serious dialogue about health technology. It is a call to action to embrace innovation, foster richer scientific discussions and support pioneering research for tangible health advancements.
我们获得伊格-诺贝尔奖的智能马桶研究直面社会禁忌,以幽默为切入点,推动有关健康技术的严肃对话。它呼吁人们行动起来,拥抱创新,促进更丰富的科学讨论,支持开拓性研究,以取得切实的健康进步。
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引用次数: 0
Are all the IL-23 blockers the same in inflammatory bowel disease? 在炎症性肠病中,所有的 IL-23 阻断剂都一样吗?
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2024-01-05 DOI: 10.1038/s41575-023-00889-7
Silvio Danese, Laurent Peyrin-Biroulet
A substantial percentage of patients with inflammatory bowel disease (IBD) exhibit biologic treatment failure or loss of response over time. This article explores the effectiveness and safety of monoclonal antibodies targeting the IL-23 pathway in treating IBD; continued research is needed to address lingering questions regarding long-term safety and efficacy.
相当比例的炎症性肠病(IBD)患者表现出生物治疗失败或随着时间的推移失去反应。本文探讨了靶向IL-23通路的单克隆抗体治疗IBD的有效性和安全性;要解决长期安全性和有效性方面的遗留问题,还需要继续开展研究。
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引用次数: 0
Pathophysiology of gastro-oesophageal reflux disease: implications for diagnosis and management 胃食管反流病的病理生理学:对诊断和管理的影响
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2024-01-04 DOI: 10.1038/s41575-023-00883-z
Julieta Argüero, Daniel Sifrim
Gastro-oesophageal reflux disease (GERD) is a common gastrointestinal disorder in which retrograde flow of gastric content into the oesophagus causes uncomfortable symptoms and/or complications. It has a multifactorial and partially understood pathophysiology. GERD starts in the stomach, where the refluxate material is produced. Following the trajectory of reflux, the failure of the antireflux barrier, primarily the lower oesophageal sphincter and the crural diaphragm, enables the refluxate to reach the oesophageal lumen, triggering oesophageal or extra-oesophageal symptoms. Reflux clearance mechanisms such as primary and secondary peristalsis and the arrival of bicarbonate-rich saliva are critical to prevent mucosal damage. Alterations of the oesophageal mucosal integrity, such as macroscopic oesophagitis or microscopic changes, determine the perception of symptoms. The intensity of the symptoms is affected by peripheral and central neural and psychological mechanisms. In this Review, we describe an updated understanding of the complex and multifactorial pathophysiology of GERD. It is now recognized that different GERD phenotypes have different degrees of reflux, severity of mucosal integrity damage and type, and severity of symptoms. These variations are probably due to the occurrence of a predominant pathophysiological mechanism in each patient. We also describe the main pathophysiological mechanisms of GERD and their implications for personalized diagnosis and management. In this Review, Argüero and Sifrim describe the core pathophysiological mechanisms involved in gastro-oesophageal reflux disease (GERD). They also discuss the implications for clinical management of GERD.
胃食管反流病(GERD)是一种常见的胃肠道疾病,胃内容物逆流进入食管会引起不适症状和/或并发症。它的病理生理学是由多种因素造成的,目前尚不完全清楚。胃食管反流病始于胃部,反流物在胃部产生。按照反流的轨迹,抗反流屏障(主要是下食道括约肌和嵴膈)失效,使反流物到达食道腔,引发食道或食道外症状。原发性和继发性蠕动等反流清除机制以及富含碳酸氢盐的唾液对防止粘膜损伤至关重要。食道粘膜完整性的改变,如宏观食道炎或微观变化,决定了对症状的感知。症状的强度受外周和中枢神经及心理机制的影响。在这篇综述中,我们描述了对胃食管反流病复杂的多因素病理生理学的最新认识。现在人们认识到,不同的胃食管反流病表型具有不同的反流程度、粘膜完整性损伤的严重程度和类型以及症状的严重程度。这些差异可能是由于每个患者都存在一种主要的病理生理机制。我们还描述了胃食管反流病的主要病理生理机制及其对个性化诊断和管理的影响。
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引用次数: 0
Autism spectrum disorders and the gastrointestinal tract: insights into mechanisms and clinical relevance 自闭症谱系障碍与胃肠道:对机制和临床意义的认识
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2023-12-19 DOI: 10.1038/s41575-023-00857-1
Lin Y. Hung, Kara Gross Margolis
Autism spectrum disorders (ASDs) are recognized as central neurodevelopmental disorders diagnosed by impairments in social interactions, communication and repetitive behaviours. The recognition of ASD as a central nervous system (CNS)-mediated neurobehavioural disorder has led most of the research in ASD to be focused on the CNS. However, gastrointestinal function is also likely to be affected owing to the neural mechanistic nature of ASD and the nervous system in the gastrointestinal tract (enteric nervous system). Thus, it is unsurprising that gastrointestinal disorders, particularly constipation, diarrhoea and abdominal pain, are highly comorbid in individuals with ASD. Gastrointestinal problems have also been repeatedly associated with increased severity of the core symptoms diagnostic of ASD and other centrally mediated comorbid conditions, including psychiatric issues, irritability, rigid–compulsive behaviours and aggression. Despite the high prevalence of gastrointestinal dysfunction in ASD and its associated behavioural comorbidities, the specific links between these two conditions have not been clearly delineated, and current data linking ASD to gastrointestinal dysfunction have not been extensively reviewed. This Review outlines the established and emerging clinical and preclinical evidence that emphasizes the gut as a novel mechanistic and potential therapeutic target for individuals with ASD. Gastrointestinal issues are common in autism spectrum disorders (ASDs). This Review provides a comprehensive overview of the clinical and mechanistic connections between ASDs and gastrointestinal disorders and how these data might be utilized for future research and novel therapeutic targets.
自闭症谱系障碍(ASD)被认为是一种中枢神经发育障碍,其诊断依据是社交互动、沟通和重复行为方面的障碍。自闭症谱系障碍被认为是一种由中枢神经系统(CNS)介导的神经行为障碍,因此大部分自闭症谱系障碍的研究都集中在中枢神经系统上。然而,由于 ASD 和胃肠道神经系统(肠道神经系统)的神经机制性质,胃肠功能也可能受到影响。因此,胃肠道疾病,尤其是便秘、腹泻和腹痛,在 ASD 患者中高度合并也就不足为奇了。胃肠道问题还多次与 ASD 诊断核心症状和其他中枢介导的合并症(包括精神问题、易怒、刻板强迫行为和攻击行为)的严重程度增加有关。尽管胃肠功能紊乱在 ASD 及其相关行为合并症中的发病率很高,但这两种病症之间的具体联系尚未得到明确界定,而目前将 ASD 与胃肠功能紊乱联系起来的数据也未得到广泛综述。本综述概述了已有的和新出现的临床和临床前证据,这些证据强调肠道是 ASD 患者的新机制和潜在治疗靶点。
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引用次数: 0
Neutrophils: from IBD to the gut microbiota 中性粒细胞:从肠道疾病到肠道微生物群
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2023-12-18 DOI: 10.1038/s41575-023-00871-3
Camille Danne, Jurate Skerniskyte, Benoit Marteyn, Harry Sokol
Inflammatory bowel disease (IBD) is a chronic inflammatory condition of the gastrointestinal tract that results from dysfunction in innate and/or adaptive immune responses. Impaired innate immunity, which leads to lack of control of an altered intestinal microbiota and to activation of the adaptive immune system, promotes a secondary inflammatory response that is responsible for tissue damage. Neutrophils are key players in innate immunity in IBD, but their roles have been neglected compared with those of other immune cells. The latest studies on neutrophils in IBD have revealed unexpected complexities, with heterogeneous populations and dual functions, both deleterious and protective, for the host. In parallel, interconnections between disease development, intestinal microbiota and neutrophils have been highlighted. Numerous IBD susceptibility genes (such as NOD2, NCF4, LRRK2, CARD9) are involved in neutrophil functions related to defence against microorganisms. Moreover, severe monogenic diseases involving dysfunctional neutrophils, including chronic granulomatous disease, are characterized by intestinal inflammation that mimics IBD and by alterations in the intestinal microbiota. This observation demonstrates the dialogue between neutrophils, gut inflammation and the microbiota. Neutrophils affect microbiota composition and function in several ways. In return, microbial factors, including metabolites, regulate neutrophil production and function directly and indirectly. It is crucial to further investigate the diverse roles played by neutrophils in host–microbiota interactions, both at steady state and in inflammatory conditions, to develop new IBD therapies. In this Review, we discuss the roles of neutrophils in IBD, in light of emerging evidence proving strong interconnections between neutrophils and the gut microbiota, especially in an inflammatory context. In this Review, Danne and colleagues describe the roles of neutrophils in inflammatory bowel disease, as well as their functions in host–microbiota interactions.
炎症性肠病(IBD)是一种胃肠道慢性炎症,是先天性和/或适应性免疫反应功能失调所致。先天性免疫功能受损会导致对改变的肠道微生物群缺乏控制,并激活适应性免疫系统,从而引发继发性炎症反应,造成组织损伤。中性粒细胞是 IBD 先天性免疫的关键角色,但与其他免疫细胞相比,它们的作用一直被忽视。对中性粒细胞在 IBD 中作用的最新研究揭示了意想不到的复杂性,中性粒细胞具有异质性种群和双重功能,对宿主既有害又有保护作用。与此同时,疾病发展、肠道微生物群和中性粒细胞之间的相互联系也得到了强调。许多 IBD 易感基因(如 NOD2、NCF4、LRRK2、CARD9)都与中性粒细胞抵御微生物的功能有关。此外,涉及中性粒细胞功能障碍的严重单基因疾病(包括慢性肉芽肿病)的特征是模仿 IBD 的肠道炎症和肠道微生物群的改变。这一观察结果表明了中性粒细胞、肠道炎症和微生物群之间的对话。中性粒细胞以多种方式影响微生物群的组成和功能。反过来,包括代谢物在内的微生物因子也会直接或间接地调节中性粒细胞的产生和功能。进一步研究中性粒细胞在稳态和炎症条件下宿主-微生物群相互作用中发挥的各种作用对于开发新的 IBD 疗法至关重要。在本综述中,我们将讨论中性粒细胞在 IBD 中的作用,因为新出现的证据证明了中性粒细胞与肠道微生物群之间的紧密联系,尤其是在炎症情况下。
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引用次数: 0
Guidelines for best practices in monitoring established coeliac disease in adult patients 监测成年患者已确诊的乳糜泻最佳实践指南
IF 65.1 1区 医学 Q1 Medicine Pub Date : 2023-12-18 DOI: 10.1038/s41575-023-00872-2
Luca Elli, Daniel Leffler, Christophe Cellier, Benjamin Lebwohl, Carolina Ciacci, Michael Schumann, Knut E. A. Lundin, Stefania Chetcuti Zammit, Reena Sidhu, Leda Roncoroni, Julio C. Bai, Anne R. Lee, Melinda Dennis, Marie E. Robert, Kamran Rostami, Sherine Khater, Isabel Comino, Angel Cebolla, Federica Branchi, Elena F. Verdu, Juan Pablo Stefanolo, Randi Wolf, Sheba Bergman-Golden, Nick Trott, Luigia Scudeller, Fabiana Zingone, Lucia Scaramella, David S. Sanders
Coeliac disease (CeD) is an immunological disease triggered by the consumption of gluten contained in food in individuals with a genetic predisposition. Diagnosis is based on the presence of small bowel mucosal atrophy and circulating autoantibodies (anti-type 2 transglutaminase antibodies). After diagnosis, patients follow a strict, life-long gluten-free diet. Although the criteria for diagnosis of this disease are well defined, the monitoring phase has been studied less and there is a lack of specific guidelines for this phase. To develop a set of clinical guidelines for CeD monitoring, we followed the Grading of Recommendations Assessment, Development and Evaluation methodology. Statements and recommendations with the level of evidence were developed and approved by the working group, which comprised gastroenterologists, pathologists, dieticians and biostatisticians. The proposed guidelines, endorsed by the North American and European coeliac disease scientific societies, make recommendations for best practices in monitoring patients with CeD based on the available evidence. The evidence level is low for many topics, suggesting that further research in specific aspects of CeD would be valuable. In conclusion, the present guidelines support clinicians in improving CeD treatment and follow-up and highlight novel issues that should be considered in future studies. Coeliac disease is a chronic inflammatory disease triggered by gluten consumption in individuals with a genetic susceptibility. These Evidence-Based Guidelines provide recommendations for improving the health care of the patients and discuss future perspectives.
乳糜泻(Celiac disease,CeD)是一种免疫性疾病,由具有遗传倾向的个体食用食物中的麸质引发。诊断依据是小肠粘膜萎缩和循环自身抗体(抗 2 型转谷氨酰胺酶抗体)。确诊后,患者要严格遵守终身无麸质饮食。虽然这种疾病的诊断标准已经明确,但对监测阶段的研究较少,也缺乏针对这一阶段的具体指南。为了制定一套 CeD 监测临床指南,我们采用了建议分级评估、发展和评价方法。由胃肠病学家、病理学家、营养学家和生物统计学家组成的工作组制定并批准了具有证据等级的声明和建议。拟议的指南得到了北美和欧洲乳糜泻科学协会的认可,根据现有证据提出了监测乳糜泻患者的最佳实践建议。许多主题的证据水平较低,这表明对 CeD 的特定方面开展进一步研究将很有价值。总之,本指南支持临床医生改进 CeD 治疗和随访,并强调了未来研究中应考虑的新问题。
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Nature Reviews Gastroenterology &Hepatology
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