Publications by authors named "Ya Ping Liu"

Alzheimer's disease (AD) is a complex multifactorial neurodegenerative disease. With the escalating aging of the global population, the societal burden of this disease is increasing. Although drugs are available for the treatment of AD, their efficacy is limited and there remains no effective cure.

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Alstoscholarisine L is an architecturally complex monoterpenoid indole alkaloid with a unique ring fusion pattern, isolated from the leaves of Alstonia scholaris. The 6/5/5/6/6/6-membered rings contain two lactonic rings and one aminal carbon and possess seven contiguous aligned stereocenters, three of which are quaternary. Its structure was elucidated by extensive spectroscopic data analyses, quantum chemical computations, and single-crystal X-ray diffraction.

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Mitochondria play dominant roles in various cellular processes such as energy production, apoptosis, calcium homeostasis, and oxidation-reduction balance. Maintaining mitochondrial quality through mitophagy is essential, especially as its impairment leads to the accumulation of dysfunctional mitochondria in aging oocytes. Our previous research revealed that PKD expression decreases in aging oocytes, and its inhibition negatively impacts oocyte quality.

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Objectives: To investigate the incidence rate, clinical characteristics, and prognosis of neonatal stroke in Shenzhen, China.

Methods: Led by Shenzhen Children's Hospital, the Shenzhen Neonatal Data Collaboration Network organized 21 institutions to collect 36 cases of neonatal stroke from January 2020 to December 2022. The incidence, clinical characteristics, treatment, and prognosis of neonatal stroke in Shenzhen were analyzed.

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Objectives: Acute pancreatitis (AP) has a high incidence of hospitalizations, morbidity, and mortality worldwide. A growing number of studies on AP pathogenesis are based on cerulein-induced experimental model, which simulates human AP in vivo. It has been demonstrated that both pancreatic acinar cells and peritoneal macrophages are involved in pancreatic inflammation and damage.

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Hepatocellular carcinoma (HCC) is among the world's worst malignancies. Nuclear division cycle 1 (NDC1) is an essential membrane-integral nucleoporin, found in this study to be significantly increased in primary HCC. A multivariate analysis revealed that higher NDC1 expression was linked to worse outcome in HCC patients.

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To enhance the clinical applicability of guidelines and provide more effective guidance for clinical practice, a clinical value assessment was conducted during the development of the World Federation of Acupuncture-Moxibustion Societies (WFAS) , which involved the evaluation of 59 acupuncture and moxibustion treatment protocols from randomized controlled trials (RCTs). This article introduced the methodology, content and results of the clinical value assessment of RCT-based acupuncture and moxibustion treatment protocols, which involved the integration of historical and contemporary medical evidence and expert consensus. It served as a methodological reference for the future development of acupuncture and moxibustion clinical practice guidelines.

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The CXCR2 chemokine receptor is known to have a significant impact on the initiation and control of inflammatory processes. However, its specific involvement in the sensation of itch is not yet fully understood. In this study, we aimed to elucidate the function of CXCR2 in the trigeminal ganglion (TG) by utilizing orofacial itch models induced by incision, chloroquine (CQ), and histamine.

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It is aimed to evaluate the effectiveness and provide evidence-based medical support for acupuncture as a prophylactic treatment for migraines. Randomized controlled trials (RCTs) from inception to April 2022 are included in 14 databases. Pairwise meta-analysis is conducted using STATA software V14.

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Article Synopsis
  • The study investigated how Tuina therapy affects anxiety-like behavior in immature rats suffering from allergic airway inflammation (AAI).
  • It involved 27 male Sprague-Dawley rats, which were assigned to control, AAI, and AAI with Tuina groups to assess anxiety through various tests and measure biological markers.
  • Results showed that Tuina effectively reduced anxiety-like behaviors and the hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis in AAI rats, while also increasing glucocorticoid receptor expression in their hippocampus and lungs.
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Objective: The objective of this study is to explore the clinicopathological characteristics of gastric cancer and precancerous conditions in patients with primary gastric lymphoma.

Methods: We analyzed 474 cases of primary gastric lymphoma, mainly DLBCL and MALT, from three clinical centres retrospectively, and compared the clinicopathological parameters of primary gastric lymphoma patients complicated with gastric cancer, precancerous conditions, or with no complications.

Results: A total of 5.

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Confusoside (CF), a major chemical compound in the leaves of Wall., is a dihydrochalcone glycoside with excellent antioxidant and anti-inflammatory effects. However, the hepatoprotective effect of CF has not been described.

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High-fat diet (HFD)-induced obesity leads endothelial dysfunction and contributes to cardiovascular diseases. Palmitic acid (PA), a free fatty acid, is the main component of dietary saturated fat. Physcion, a chemical ingredient from Rhubarb, has been shown anti-hypertensive, anti-bacteria, and anti-tumor properties.

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Elevated levels of plasma homocysteine (Hcy) causes severe cardiac dysfunction, which is closely associated with oxidative stress. Emodin, a naturally occurring anthraquinone derivative, has been shown to exert antioxidant and anti-apoptosis activities. However, whether emodin could protect against Hcy-induced cardiac dysfunction remains unknown.

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  • Veratrazine A (1) is a steroidal alkaloid that features a unique triheterocyclic side chain structure, specifically a 6/5/5 configuration.
  • The structure of Veratrazine A was determined using spectroscopic analyses and X-ray diffraction methods.
  • Preliminary bioassays indicate that Veratrazine A exhibits moderate anti-inflammatory activity.
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  • The study aims to identify key outcome indexes for using acupuncture and moxibustion in treating migraines, focusing on both attack and prophylactic stages.
  • It reveals different critical effectiveness and safety outcome indexes for attack stage (e.g., headache intensity, duration) and prophylactic treatment (e.g., headache frequency, quality of life).
  • The preference for assessing treatment effectiveness includes using the visual analogue scale (VAS) after 2 hours for attack treatments and evaluating frequency and intensity 12 weeks into prophylactic treatments, with quality of life assessed via the migraine-specific quality of life questionnaire (MSQ).
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A phytochemical investigation of the whole plants of T. delavayi led to the isolation of five new dimeric benzylisoquinoline alkaloids, thalidelavines A-E (1-5), together with six known congeners (6-11). The structures and absolute configurations of new compounds were established based on analyses of spectroscopic data, ECD calculations, and single crystal X-ray crystallography.

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Colorectal cancer (CRC) is one of the most common malignant tumors in the world, with high prevalence and low 5-year survival. Most of the CRC patients show excessive activation of the Wnt/β-catenin pathway which is a vital target for CRC treatment. Based on multiple CRC cell lines with different nuclear expression of β-catenin, NU2058 is identified from a small molecule library consisting of 280 bioactive compounds and found to selectively inhibit the proliferation of CRC cells with nuclear β-catenin activation in vitro and in vivo.

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  • This study performed a meta-analysis comparing negative pressure wound therapy (NPWT) and moist wound care (MWC) for treating diabetic foot ulcers (DFUs).
  • It reviewed data from 10 randomized trials involving a total of 1,244 patients to analyze outcomes like wound healing, amputation rates, and adverse events.
  • The findings revealed that NPWT significantly improved wound healing and reduced amputation risks compared to MWC, with no increase in adverse events reported between the two treatment options.
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Background: In recent years, the T-cell therapy and immune checkpoint inhibitors toward CTLA-4 and PD-1/PD-L1 axis antibody therapy have acquired encouraging success. However, most of patients were still not benefited with lots of troubles, such as low penetration of tissues/cells, strong immunogenicity and cytokine release syndrome, and long manufacturing process and expensive costs. By contrast, the immune-modulating small molecules possessed natural advantages to overcome these obstacles and might achieve greater success.

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  • The "bud of Wight," traditionally used as herbal tea by the Yi people in Yunnan, China, was analyzed for its chemical constituents and health benefits.
  • Five fractions were created from the methanol extract, with one fraction (ethyl acetate) showing the highest levels of beneficial compounds and the strongest activity against key enzymes and oxidative damage.
  • The study suggests that flavonoids and phenolic acids found in the bud are mainly responsible for its enzyme inhibitory effects, antioxidant properties, and protection against cell damage.
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Objectives: Cronkhite-Canada syndrome (CCS) is a rare hamartomatous polyposis syndrome with a proposed association with chronic autoimmune inflammation. To date, genetic background of patients with CCS remains less investigated. In this study we aimed to explore the genomic landscape of CCS.

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