PMID- 34255249 OWN - NLM STAT- MEDLINE DCOM- 20220203 LR - 20220203 IS - 1559-1182 (Electronic) IS - 0893-7648 (Linking) VI - 58 IP - 10 DP - 2021 Oct TI - Antioxidative and Anti-inflammatory Effects of Kojic Acid in Abeta-Induced Mouse Model of Alzheimer's Disease. PG - 5127-5140 LID - 10.1007/s12035-021-02460-4 [doi] AB - Alzheimer's disease (AD) is a common cause of dementia that is clinically characterized by the loss of memory and cognitive functions. Currently, there is no specific cure for the management of AD, although natural compounds are showing promising therapeutic potentials because of their safety and easy availability. Herein, we evaluated the neuroprotective properties of kojic acid (KA) in an AD mouse model. Intracerebroventricular injection (i.c.v) of Abeta(1-42) (5 muL/5 min/mouse) into wild-type adult mice induced AD-like pathological changes in the mouse hippocampus by increasing oxidative stress and neuroinflammation, affecting memory and cognitive functions. Interestingly, oral treatment of kojic acid (50 mg/kg/mouse for 3 weeks) reversed the AD pathology by reducing the expression of amyloid-beta (Abeta) and beta-site amyloid precursor protein cleaving enzyme1 (BACE-1). Moreover, kojic acid reduced oxidative stress by enhancing the expression of nuclear factor erythroid-related factor 2 (Nrf2) and heme oxygenase 1 (HO1). Also, kojic acid reduced the lipid peroxidation and reactive oxygen species in the Abeta + kojic acid co-treated mice brains. Moreover, kojic acid decreased neuroinflammation by inhibiting Toll-like receptor 4, phosphorylated nuclear factor-kappaB, tumor necrosis factor-alpha, interleukin 1-beta (TLR-4, p-NFkappaB, TNFalpha, and IL-1beta, respectively), and glial cells. Furthermore, kojic acid enhanced synaptic markers (SNAP-23, SYN, and PSD-95) and memory functions in AD model mice. Additionally, kojic acid treatment also decreased Abeta expression, oxidative stress, and neuroinflammation in vitro in HT-22 mouse hippocampal cells. To the best of our knowledge, this is the first study to show the neuroprotective effects of kojic acid against an AD mouse model. Our findings could serve as a favorable and alternative strategy for the discovery of novel drugs to treat AD-related neurodegenerative conditions. CI - (c) 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Khan, Amjad AU - Khan A AD - Division of Applied Life Science (BK 21 Four), College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea. FAU - Park, Tae Ju AU - Park TJ AD - Haemato-Oncology/Systems Medicine Group, Paul O'Gorman Leukaemia Research Centre, Institute of Cancer Sciences, MVLS, University of Glasgow, Glasgow, UK. FAU - Ikram, Muhammad AU - Ikram M AD - Division of Applied Life Science (BK 21 Four), College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea. FAU - Ahmad, Sareer AU - Ahmad S AD - Division of Applied Life Science (BK 21 Four), College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea. FAU - Ahmad, Riaz AU - Ahmad R AD - Division of Applied Life Science (BK 21 Four), College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea. FAU - Jo, Min Gi AU - Jo MG AD - Division of Applied Life Science (BK 21 Four), College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea. FAU - Kim, Myeong Ok AU - Kim MO AUID- ORCID: 0000-0003-2492-5369 AD - Division of Applied Life Science (BK 21 Four), College of Natural Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea. mokim@gnu.ac.kr. LA - eng PT - Journal Article DEP - 20210713 PL - United States TA - Mol Neurobiol JT - Molecular neurobiology JID - 8900963 RN - 0 (Amyloid beta-Peptides) RN - 0 (Anti-Inflammatory Agents) RN - 0 (Antioxidants) RN - 0 (Peptide Fragments) RN - 0 (Pyrones) RN - 0 (Reactive Oxygen Species) RN - 0 (amyloid beta-protein (1-42)) RN - 6K23F1TT52 (kojic acid) SB - IM MH - Alzheimer Disease/*chemically induced/*drug therapy/metabolism MH - Amyloid beta-Peptides/administration & dosage/*toxicity MH - Animals MH - Anti-Inflammatory Agents/*administration & dosage MH - Antioxidants/*administration & dosage MH - Cell Line MH - Injections, Intraventricular MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Peptide Fragments/administration & dosage/*toxicity MH - Pyrones/*administration & dosage MH - Reactive Oxygen Species/antagonists & inhibitors/metabolism MH - Treatment Outcome OTO - NOTNLM OT - Alzheimer's disease OT - Kojic acid OT - Neurodegeneration OT - Neuroinflammation OT - Oxidative stress EDAT- 2021/07/14 06:00 MHDA- 2022/02/04 06:00 CRDT- 2021/07/13 12:28 PHST- 2020/11/25 00:00 [received] PHST- 2021/06/10 00:00 [accepted] PHST- 2021/07/14 06:00 [pubmed] PHST- 2022/02/04 06:00 [medline] PHST- 2021/07/13 12:28 [entrez] AID - 10.1007/s12035-021-02460-4 [pii] AID - 10.1007/s12035-021-02460-4 [doi] PST - ppublish SO - Mol Neurobiol. 2021 Oct;58(10):5127-5140. doi: 10.1007/s12035-021-02460-4. Epub 2021 Jul 13.