Publications by authors named "Yongyan Xie"

Ageing is a major risk factor for neurodegenerative diseases like Alzheimer's disease (AD). Microglia, as the principal innate immune cells within the brain, exert homeostatic and active immunological defense functions throughout human lifespan. The age-related dysfunction of microglia is currently recognized as a pivotal trigger for brain diseases associated with aging.

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Microglia-mediated neuroinflammation plays a crucial role in Alzheimer's disease (AD). Tinosinenside A (Tis A) is a novel sesquiterpene glycoside isolated from the dried rattan stem of Tinospora sinensis (Lour.) Merr.

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Article Synopsis
  • The study focuses on the dried rattan stem of Tinospora sinensis, which is used in Tibetan medicine to treat various health issues, including inflammation and neurodegenerative diseases like Alzheimer's.
  • The research aims to investigate the anti-neuroinflammatory properties of Tinospora sinensis extracts, identify major active components, and explore mechanisms of action.
  • Various methods including UPLC-Q-TOF/MS, behavioral tests on mice, and analyses of gene/protein levels were employed, revealing 39 compounds and insights into their effects on neuroinflammation and potential targets for treatment.
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Ethnopharmacological Relevance: Erjingpill, a well-known prescription documented in the classic Chinese medical text "Shengji Zonglu," has been proven to have effective alleviating effects on neuroinflammation in Alzheimer's disease (AD). Although the alterations in microglial cell glycolysis are known to play a crucial role in the development of neuroinflammation, it remains unclear whether the anti-neuroinflammatory effects of Erjingpill are associated with its impact on microglial cell glycolysis.

Aim Of The Study: This study aims to determine whether Erjingpill exerts anti-neuroinflammatory effects by influencing microglial cell glycolysis.

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The pharmacokinetics (PK) of in rats were studied, and pharmacokinetic-pharmacodynamic (PK-PD) correlation analysis was performed to elucidate their time-concentration-effect relationship. The myocardial ischemia model was made with pituitrin. Rats were divided into sham operation, sham operation administration, model, and model administration groups (SG, SDG, MG, and MDG, respectively; = 6).

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This paper aimed to study the effect of Erjing Pills on the improvement of neuroinflammation of rats with Alzheimer's di-sease(AD) induced by the combination of D-galactose and Aβ_(25-35) and its mechanism. SD rats were randomly divided into a sham group, a model control group, a positive drug group(donepezil, 1 mg·kg~(-1)), an Erjing Pills high-dose group(9.0 g·kg~(-1)), and an Erjing Pills low-dose group(4.

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Background: It has been shown that Kudzu root has significant pharmacological effects such as improving microcirculation, dilating coronary arteries, and increasing cerebral and coronary blood flow, but its material basis and mechanism of action are not clear.

Objective: The aim of this study was to investigate the mechanism of action of Kudzu root in the prevention and treatment of cerebral ischemia (CI) through network pharmacology combined with animal experiments.

Methods: The components of kudzu root were screened by using the Chemistry Database, Chinese Academy of Science.

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Lotus leaves have the dual identity of medicine and food homology as included in the Chinese Pharmacopoeia. Nuciferine is the major bioactive component which is highly abundant in the leaves of . Nuciferine has been shown to potentially improve energy metabolism and protect neurons in cerebral ischemia.

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5(S)-5-carboxystrictosidine (5-CS) is a compound found in Mappianthus iodoides Hand.-Mazz., root, a traditional Chinese medicine used for the treatment of coronary artery disease.

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Article Synopsis
  • The study investigated the effects of steamed and sundried Rehmanniae Radix Praeparata (RRP) on delaying brain aging in mice that underwent ovariectomy, which simulates menopause.
  • Mice were divided into different treatment groups, including a control group and varying doses of RRP, and their cognitive abilities were assessed through tests like the Morris water maze.
  • Results indicated that RRP treatment improved learning and memory, boosted estrogen levels, and resulted in healthier brain cell structure compared to the model group, which showed significant cognitive decline and brain changes post-surgery.
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Context: Erzhi pills are a classic Chinese medicine prescription, but their effects on Alzheimer's disease (AD) are not clear.

Objective: The protective effects of Erzhi pills in AD rats and their potential mechanisms were investigated.

Materials And Methods: An AD rat model was established by ovariectomy combined with d-galactose and Aβ injection.

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Erjing pill, a Traditional Chinese Medicine (TCM) formulation composed of and , has an important role in the treatment of Alzheimer's disease (AD). However, the underlying mechanisms of the action of Erjing pill in AD have remained elusive. In the present study, the key ingredients of Erjing pill were investigated and the active components and their mechanisms of action on AD were analyzed based on networks pharmacology.

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Context: α-Hederin, a potent bioactive compound of (Bunge) Regel (Ranunculaceae), has many pharmacological uses, but its effect on cancer cell metabolism is still unclear.

Objective: To elucidate the role of α-hederin in the glucose metabolism of lung cancer cells.

Materials And Methods: Cell Counting Kit 8 and colony formation assays were employed to assess the antiproliferative effects of α-hederin.

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Background: This study investigates the effect of epigallocatechin gallate (EGCG) from tea leaves on hyperuricemia and explores the underlying mechanisms in vitro and in vivo.

Methods: The effects of EGCG on proliferation of BRL 3A rat liver cells were evaluated by CCK8 and after stimulation by xanthine the uric acid and xanthine oxidase (XOD) levels were evaluated by a kit; In an in vivo experiment, rats were treated with oxonic acid potassium salt combined with ethylamine pyrimidine to induce high uric acid hematic disease (7 days), The serum uric acid levels and XOD levels were evaluated by a kit, The expressions of OTA1 and GLUT9 were detected by RT-qPCR and Immunohistochemical.

Results: EGCG had no effect on proliferation, and significantly reduced serum uric acid levels and inhibited XOD activity (P<0.

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Context: Eucommia ulmoides Oliver (Eucommiaceae) has various medicinal properties. Our previous studies revealed that Eucommia ulmoides has a protective effect on hyperuricaemia.

Objective: This study investigates the effect of Eucommia ulmoides cortex ethanol extract (EU) on hyperuricaemia and explores the underlying mechanism in Kunming mice and Sprague-Dawley rats.

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Our previous studies showed that the effect of resveratrol preventing mitochondrial permeability transition pore (mPTP) opening in myocardial ischemia/reperfusion injury was achieved by regulating voltage-dependent anion channel 1 (VDAC1). However, the underlying mechanism remains unclear. Previous studies demonstrated that the activity and function of VDAC1 are highly regulated by post-translational modification.

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We have recently demonstrated that Voltage-dependent anion channel 1 (VDAC1), a protein located in the mitochondrial outer membrane, is involved in the effects of resveratrol on the mitochondrial permeability transition pore (mPTP). However, the underlying mechanism of action remains to be elucidated. In the present study, we demonstrated that resveratrol promoted VDAC1 deacetylation in cardiomyocytes in response to anoxia/reoxygenation (A/R) injury.

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