PMID- 34169425 OWN - NLM STAT- MEDLINE DCOM- 20211222 LR - 20211222 IS - 2523-899X (Electronic) IS - 2523-899X (Linking) VI - 41 IP - 3 DP - 2021 Jun TI - Ligustrazine Attenuates Hyperhomocysteinemia-induced Alzheimer-like Pathologies in Rats. PG - 548-554 LID - 10.1007/s11596-021-2379-1 [doi] AB - Ligustrazine, an alkaloid extracted from the traditional Chinese herbal medicine Ligusticum Chuanxiong Hort, has been clinically applied to treat the cerebrovascular diseases. Hyperhomocysteinemia (Hhcy) is an independent risk factor for Alzheimer's disease (AD). Memory deficits can be caused by Hhcy via pathologies of AD-like tau and amyloid-beta (Abeta) in the hippocampus. Here, we investigated whether homocysteine (Hcy) can induce AD-like pathologies and the effects of ligustrazine on these pathologies. The Hcy rat model was constructed by 14-day Hcy injection via vena caudalis, and rats were treated with daily intragastric administration of ligustrazine at the same time. We found that the pathologies of tau and Abeta were induced by Hcy in the hippocampus, while the Hcy-induced tau hyperphosphorylation and Abeta accumulation could be markedly attenuated by simultaneous ligustrazine treatment. Our data demonstrate that ligustrazine may be used as a promising neuroprotective agent to treat the Hcy-induced AD-like pathologies. CI - (c) 2021. Huazhong University of Science and Technology. FAU - Zhang, Qing AU - Zhang Q AD - Laboratory of Neurological Diseases, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China. FAU - Wang, Jing AU - Wang J AD - Department of Pediatrics, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China. FAU - Zhu, Liang AU - Zhu L AD - Department of Anesthesiology, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China. FAU - Jiang, Shi-Jie AU - Jiang SJ AD - Department of Orthopedics, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China. FAU - Liu, Juan AU - Liu J AD - Department of Endocrinology, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China. FAU - Wang, Lin-Xiao AU - Wang LX AD - Laboratory of Neurological Diseases, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China. suwlx@163.com. FAU - Qin, Xi-Hu AU - Qin XH AD - Department of General Surgery, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213000, China. zcfmlm@njmu.edu.cn. LA - eng PT - Journal Article DEP - 20210625 PL - China TA - Curr Med Sci JT - Current medical science JID - 101729993 RN - 0 (Amyloid beta-Peptides) RN - 0 (Neuroprotective Agents) RN - 0 (Pyrazines) RN - V80F4IA5XG (tetramethylpyrazine) SB - IM MH - Alzheimer Disease/*drug therapy/etiology/genetics/pathology MH - Amyloid beta-Peptides MH - Animals MH - Brain/drug effects/pathology MH - Disease Models, Animal MH - Hippocampus/drug effects/metabolism MH - Humans MH - Hyperhomocysteinemia/complications/*drug therapy/genetics/pathology MH - Memory Disorders/*drug therapy/etiology/genetics/pathology MH - Neurons/drug effects/pathology MH - Neuroprotective Agents/pharmacology MH - Phosphorylation/drug effects MH - Pyrazines/*pharmacology MH - Rats MH - Rats, Sprague-Dawley OTO - NOTNLM OT - Alzheimer's disease OT - cognitive impairment OT - hyperhomocysteinemia OT - ligustrazine OT - phosphorylated tau EDAT- 2021/06/26 06:00 MHDA- 2021/12/24 06:00 CRDT- 2021/06/25 07:02 PHST- 2020/10/31 00:00 [received] PHST- 2020/11/26 00:00 [accepted] PHST- 2021/06/26 06:00 [pubmed] PHST- 2021/12/24 06:00 [medline] PHST- 2021/06/25 07:02 [entrez] AID - 10.1007/s11596-021-2379-1 [pii] AID - 10.1007/s11596-021-2379-1 [doi] PST - ppublish SO - Curr Med Sci. 2021 Jun;41(3):548-554. doi: 10.1007/s11596-021-2379-1. Epub 2021 Jun 25.