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Zhou J, Sun F, Zhang W, Feng Z, Yang Y, Mei Z. Novel insight into the therapeutical potential of flavonoids from traditional Chinese medicine against cerebral ischemia/reperfusion injury. Front Pharmacol 2024; 15:1352760. [PMID: 38487170 PMCID: PMC10937431 DOI: 10.3389/fphar.2024.1352760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/14/2024] [Indexed: 03/17/2024] Open
Abstract
Cerebral ischemia/reperfusion injury (CIRI) is a major contributor to poor prognosis of ischemic stroke. Flavonoids are a broad family of plant polyphenols which are abundant in traditional Chinese medicine (TCM) and have beneficial effects on several diseases including ischemic stroke. Accumulating studies have indicated that flavonoids derived from herbal TCM are effective in alleviating CIRI after ischemic stroke in vitro or in vivo, and exhibit favourable therapeutical potential. Herein, we systematically review the classification, metabolic absorption, neuroprotective efficacy, and mechanisms of TCM flavonoids against CIRI. The literature suggest that flavonoids exert potential medicinal functions including suppressing excitotoxicity, Ca2+ overloading, oxidative stress, inflammation, thrombin's cellular toxicity, different types of programmed cell deaths, and protecting the blood-brain barrier, as well as promoting neurogenesis in the recovery stage following ischemic stroke. Furthermore, we identified certain matters that should be taken into account in future research, as well as proposed difficulties and opportunities in transforming TCM-derived flavonoids into medications or functional foods for the treatment or prevention of CIRI. Overall, in this review we aim to provide novel ideas for the identification of new prospective medication candidates for the therapeutic strategy against ischemic stroke.
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Affiliation(s)
- Jing Zhou
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese Medicine and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Feiyue Sun
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese Medicine and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Wenli Zhang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Zhitao Feng
- Third-Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, College of Medicine and Health Sciences, China Three Gorges University, Yichang, Hubei, China
| | - Yi Yang
- The First Affiliated Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
| | - Zhigang Mei
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, College of Integrated Traditional Chinese Medicine and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Third-Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, College of Medicine and Health Sciences, China Three Gorges University, Yichang, Hubei, China
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Cao Y, Liang L, Xu J, Wu J, Yan Y, Lin P, Chen Q, Zheng F, Wang Q, Ren Q, Gou Z, Du Y. The effect of Scutellaria baicalensis stem-leaf flavonoids on spatial learning and memory in chronic cerebral ischemia-induced vascular dementia of rats. Acta Biochim Biophys Sin (Shanghai) 2016; 48:437-46. [PMID: 27118553 DOI: 10.1093/abbs/gmw024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Accepted: 01/23/2016] [Indexed: 12/19/2022] Open
Abstract
Flavonoids have been shown to improve cognitive function and delay the dementia progression. However, the underlying mechanisms remain elusive. In the present study, we examined the effect of Scutellaria baicalensis stem-leaf total flavonoids (SSTFs) extracted from S. baicalensis Georgi on spatial learning and memory in a vascular dementia (VaD) rat model and explored its molecular mechanisms. The VaD rats were developed by permanent bilateral occlusion of the common carotid artery. Seven days after recovery, the VaD rats were treated with either 50 or 100 mg/kg of SSTF for 60 days. The spatial learning and memory was evaluated in the Morris water maze (MWM) test. The tau hyperphosphorylation and the levels of the related protein kinases or phosphatases were examined by western blot analysis. In VaD rats, SSTF treatment at 100 mg/kg significantly reduced the escape latency in training trial in MWM test. In the probe trial, SSTF treatment increased the searching time and travel distance in the target quadrant. SSTF treatment inhibited the tau phosphorylation in both cortex and hippocampus in VaD rats. Meanwhile, SSTF reduced the activity of glycogen synthase kinase 3β and cyclin-dependent kinase 5 in VaD rats. In contrast, SSTF treatment increased the level of the protein phosphatase 2A subunit B in VaD rats. SSTF treatment significantly improved the spatial cognition in VaD rats. Our results suggest that SSTF may alleviate tau-hyperphosphorylation-induced neurotoxicity through coordinating the activity of kinases and phosphatase after a stroke. SSTF may be developed into promising novel therapeutics for VaD.
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Affiliation(s)
- Yanjing Cao
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan 250013, China Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Lizhen Liang
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Jian Xu
- Department of Histology and Embryology, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jiali Wu
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Yongxing Yan
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Ping Lin
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Qiang Chen
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Fengming Zheng
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Qin Wang
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Qian Ren
- Department of Neurology, Third Hospital of Hangzhou, Hangzhou 310009, China
| | - Zengmei Gou
- Department of Neurology, The Second People's Hospital of Weifang, Weifang 261041, China
| | - Yifeng Du
- Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan 250013, China
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An Analysis of the Combination Frequencies of Constituent Medicinal Herbs in Prescriptions for the Treatment of Stroke in Korean Medicine: Determination of a Group of Candidate Prescriptions for Universal Use. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:2674014. [PMID: 27087820 PMCID: PMC4818814 DOI: 10.1155/2016/2674014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/21/2016] [Accepted: 02/22/2016] [Indexed: 11/17/2022]
Abstract
In contrast to Western medicine, which typically prescribes one medicine to treat a specific disease, traditional East Asian medicine uses any one of a large number of different prescriptions (mixtures of medicinal herbs), according to the patient's characteristics. Although this can be considered an advantage, the lack of a universal prescription for a specific disease is considered a drawback of traditional East Asian medicine. The establishment of universally applicable prescriptions for specific diseases is therefore required. As a basic first step in this process, this study aimed to select prescriptions used in the treatment of stroke and, through the analysis of medicinal herb combination frequencies, select a high-frequency medicinal herb combination group for further experimental and clinical research. As a result, we selected some candidates of a medicinal herb combination and 13 candidates of a medicinal herb for the treatment of stroke.
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Kong X, Kong W, Miao G, Zhao S, Chen M, Zheng X, Bai J. Pretreatment with scutellaria baicalensis stem-leaf total flavonoid protects against cerebral ischemia/reperfusion injury in hippocampal neurons. Neural Regen Res 2015; 9:2066-73. [PMID: 25657723 PMCID: PMC4316470 DOI: 10.4103/1673-5374.147933] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/19/2014] [Indexed: 11/11/2022] Open
Abstract
Previous experimental studies have shown that cerebral infarction can be effectively reduced following treatment with scutellaria baicalensis stem-leaf total flavonoid (SSTF). However, the mechanism of action of SSTF as a preventive drug to treat cerebral infarction remains unclear. In this study, Sprague-Dawley rats were pretreated with 50, 100, 200 mg/kg SSTF via intragastric administration for 1 week prior to the establishment of focal cerebral ischemia/reperfusion injury. The results showed that pretreatment with SSTF effectively improved neurological function, reduced brain water content and the permeability of blood vessels, ameliorated ischemia-induced morphology changes in hippocampal microvessels, down-regulated Fas and FasL protein expression, elevated the activity of superoxide dismutase and glutathione peroxidase, and decreased malondialdehyde content. In contrast to low-dose SSTF pretreatment, the above changes were most obvious after pretreatment with moderate- and high-doses of SSTF. Experimental findings indicate that SSTF pretreatment can exert protective effects on the brain against cerebral ischemia/reperfusion injury. The underlying mechanisms may involve reducing brain water content, increasing microvascular recanalization, inhibiting the apoptosis of hippocampal neurons, and attenuating free radical damage.
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Affiliation(s)
- Xiangyu Kong
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical College, Chengde, Hebei Province, China
| | - Wei Kong
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical College, Chengde, Hebei Province, China
| | - Guangxin Miao
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical College, Chengde, Hebei Province, China
| | - Shumin Zhao
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical College, Chengde, Hebei Province, China
| | - Meng Chen
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical College, Chengde, Hebei Province, China
| | - Xiaoying Zheng
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical College, Chengde, Hebei Province, China
| | - Jiangtao Bai
- Laboratory of Spinal Cord Injury and Rehabilitation, Chengde Medical College, Chengde, Hebei Province, China
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