Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA.
A&M College of Medicine, Round Rock, Austin, TX, USA.
Adv Exp Med Biol. 2021;1307:417-440. doi: 10.1007/5584_2020_532.
Nonalcoholic fatty liver disease (NAFLD) has emerged as the leading liver disease globally. NAFLD patients can have a progressive phenotype, non-alcoholic steatohepatitis (NASH) that could lead to cirrhosis, liver failure and cancer. There is a close bi-directional relationship between NAFLD and type 2 diabetes mellitus (T2DM); NAFLD increases the risk for T2DM and its complications whereas T2DM increases the severity of NAFLD and its complications. The large global impact of NAFLD and T2DM on healthcare systems requires a paradigm shift from specialty care to early identification and risk stratification of NAFLD in primary care and diabetes clinics. Approach to diagnosis, risk stratification and management of NAFLD is discussed. In addition to optimizing the control of coexisting cardiometabolic comorbidities, early referral of NAFLD patients at high risk of having NASH or significant fibrosis to hepatology specialist care may improve management and allow access for clinical trials. Lifestyle modifications, vitamin E, pioglitazone and metformin are currently available options that may benefit patients with T2DM and NAFLD. The burst of clinical trials investigating newer therapeutic agents for NAFLD and NASH offer hope for new, effective and safe therapies in the near future.
非酒精性脂肪性肝病(NAFLD)已成为全球主要的肝脏疾病。NAFLD 患者可能会出现进展性表型,即非酒精性脂肪性肝炎(NASH),进而导致肝硬化、肝功能衰竭和肝癌。NAFLD 和 2 型糖尿病(T2DM)之间存在密切的双向关系;NAFLD 会增加 T2DM 及其并发症的风险,而 T2DM 则会加重 NAFLD 及其并发症的严重程度。NAFLD 和 T2DM 对全球医疗保健系统的巨大影响需要从专科治疗转变为在初级保健和糖尿病诊所中早期识别和对 NAFLD 进行风险分层。本文讨论了 NAFLD 的诊断、风险分层和管理方法。除了优化对并存的心血管代谢合并症的控制之外,将高风险发生 NASH 或显著纤维化的 NAFLD 患者及早转介至肝病专科治疗,可能会改善管理并为临床试验提供机会。目前有一些可供选择的治疗方法,包括生活方式改变、维生素 E、吡格列酮和二甲双胍,这些方法可能对 T2DM 合并 NAFLD 的患者有益。目前正在进行大量临床试验,以研究治疗 NAFLD 和 NASH 的新型治疗药物,有望在不久的将来为这些疾病提供新的、有效和安全的治疗方法。