PMID- 32854858 OWN - NLM STAT- MEDLINE DCOM- 20211011 LR - 20211011 IS - 2162-5514 (Electronic) IS - 0074-7742 (Linking) VI - 155 DP - 2020 TI - Antidiabetic drugs for Alzheimer's and Parkinson's diseases: Repurposing insulin, metformin, and thiazolidinediones. PG - 37-64 LID - S0074-7742(20)30019-2 [pii] LID - 10.1016/bs.irn.2020.02.010 [doi] AB - Medical and scientific communities have been striving to disentangle the complexity of neurodegenerative diseases, particularly Alzheimer's disease (AD) and Parkinson's disease (PD), in order to develop a cure or effective treatment for these diseases. Along this journey, it has become important to identify the early events occurring in the prodromal phases of these diseases and the disorders that increase the risk of neurodegeneration highlighting common pathological features. This strategy has led to a wealth of evidence identifying diabetes, mainly type 2 diabetes mellitus (T2DM) as a main risk factor for the onset and progression of AD and PD. Impaired glucose metabolism, insulin resistance, and mitochondrial dysfunction are features common to both type 2 diabetes mellitus (T2DM), and AD and PD, and they appear before clinical diagnosis of the two neurodegenerative diseases. These could represent the strategic nodes of therapeutic intervention. Following this line of thought, a conceivable approach is to repurpose antidiabetic drugs as valuable agents that may prevent or reduce the risk of cognitive decline and neurodegeneration. This review summarizes the past and current findings that link AD and PD with T2DM, emphasizing the common pathological mechanisms. The efficacy of antidiabetic drugs, namely intranasal insulin, metformin, and thiazolidinediones, in the prevention and/or treatment of AD and PD is also discussed. CI - (c) 2020 Elsevier Inc. All rights reserved. FAU - Cardoso, Susana AU - Cardoso S AD - CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal; IIIUC-Institute of Interdisciplinary Research, University of Coimbra, Coimbra, Portugal. Electronic address: susana.t.cardoso@gmail.com. FAU - Moreira, Paula I AU - Moreira PI AD - CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal; Laboratory of Physiology-Faculty of Medicine, University of Coimbra, Coimbra, Portugal. Electronic address: venta@ci.uc.pt. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20200811 PL - United States TA - Int Rev Neurobiol JT - International review of neurobiology JID - 0374740 RN - 0 (Hypoglycemic Agents) RN - 0 (Insulin) RN - 0 (Thiazolidinediones) RN - 9100L32L2N (Metformin) SB - IM MH - Alzheimer Disease/*drug therapy MH - Diabetes Mellitus, Type 2/drug therapy MH - *Drug Repositioning MH - Humans MH - Hypoglycemic Agents/*therapeutic use MH - Insulin/*therapeutic use MH - Metformin/*therapeutic use MH - Parkinson Disease/*drug therapy MH - Thiazolidinediones/*therapeutic use OTO - NOTNLM OT - Alzheimer's disease OT - Antidiabetic drugs OT - Cerebral glucose metabolism OT - Diabetes OT - Insulin resistance OT - Mitochondrial (dys)function OT - Parkinson's disease EDAT- 2020/08/29 06:00 MHDA- 2021/10/12 06:00 CRDT- 2020/08/29 06:00 PHST- 2020/08/29 06:00 [entrez] PHST- 2020/08/29 06:00 [pubmed] PHST- 2021/10/12 06:00 [medline] AID - S0074-7742(20)30019-2 [pii] AID - 10.1016/bs.irn.2020.02.010 [doi] PST - ppublish SO - Int Rev Neurobiol. 2020;155:37-64. doi: 10.1016/bs.irn.2020.02.010. Epub 2020 Aug 11.