Publications by authors named "Zhen-nian Zhang"

Objective: To explore the neuroprotective effect and the related mechanisms of echinacoside (ECH) in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced Parkinson's disease (PD) mice.

Methods: Parkinson's disease is induced in mice by MPTP and the neurobehaviors of mice in different groups are observed. Then, immunohistochemistry and Western blot analysis are adopted to measure the expression of tyrosine hydroxylase (TH) and α-synuclein in the substantia nigra (SN).

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Objective: The present study aimed to investigate the effect of echinacoside on autophagy-related indicators through the mTOR signaling pathway, especially the effect on the clearance of autophagy substrate P62 and α-synuclein, the core pathological products of Parkinson's disease (PD), to provide new strategies for the treatment of PD.

Methods: A mouse model of subacute PD was established by the intraperitoneal injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). First, the neurobehavioral symptoms in mice of each group were evaluated, and the monoamine neurotransmitters in the striatum in each group were measured with a high-performance liquid phase.

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This study aimed to explore the protective effects of decoction on dopaminergic (DA) neuron injury in a rotenone-induced mouse model with chronic Parkinson's disease (PD) and explore its mechanism of action. Ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used to measure the content of six main components in the decoction. The chronic PD mouse model was established by treating 10-month-old healthy wild C57BL/6 male mice with rotenone 30 mg/kg/day for 28 days in succession.

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Subcutaneous administration of rotenone has recently attracted attention because of its convenience, simplicity and efficacy in replicating features of Parkinson's disease (PD) in animal models. However, the wide range of doses reported in the literature makes it difficult to evaluate the effectiveness of this technique objectively. The aim of the present study was to identify the optimum dose of subcutaneous rotenone for establishing a model of PD.

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The cooperation of ligustrazine (LI) and borneol was proved to be much better than each of them in treating cerebral ischemia. However, the mechanism of their synergic therapy is unclear till now. Moreover, whether their cooperation brought different degrees of protection among different brain regions was also unclear.

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Ethnopharmacological Relevance: Tongxinluo (TXL), a compound prescription, is formulated according to the collateral disease doctrine of traditional Chinese medicine, and is widely used for the treatment of cardio-cerebrovascular diseases in China.

Aim Of The Study: We aimed to investigate the neuroprotective effect of TXL on focal cerebral ischemia and reperfusion injury in rats by attenuating its brain damage and neuronal apoptosis, and to assess the potential role of phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) pathway in this protection.

Materials And Methods: Adult Male Sprague-Dawley rats (n=120) were randomly divided into 5 groups: sham, cerebral ischemia and reperfusion (I/R), cerebral ischemia and reperfusion plus TXL (1.

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Objective: To evaluate effects of Tongnao Huoluo acupuncture therapy (THAT) on Bcl-2 and Caspase-3 rats with acute cerebral infarction (ACI).

Methods: Totally 264 SD rats were randomly divided into 5 groups, i.e.

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Objective: To evaluate the effect of Tongnao Huoluo Acupuncture (THA) therapy on acute cerebral infarction (ACI).

Methods: Adopting multi-centered, randomized and controlled method, 397 ACI patients from 10 hospitals subjected to the study were treated according to the initiating time (IT) of disease during hospitalization: the 138 patients of stage-1 with IT < or =6 h, were randomly assigned to three groups, treated respectively with THA (Group A), thrombolysis with urokinase (Group B) and Batroxobin (Group C); the 140 patients of stage-2 with IT within 6-48 h, and 119 patients of stage-3 with IT within 48 h-14 d were randomly assigned to three groups, treated respectively with THA (Group D) body acupuncture (Group E), and conventional treatment (Group F). Therapeutic effect was evaluated by NIHSS scores estimated at the day 1, 3, 7, 14, 28 and 90 of treatment, and the Barthel Index (BI) measured at day 14, 28 and 90.

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