Publications by authors named "Yang-yang Liu"

Article Synopsis
  • Natural enzymes have inspired the creation of biomimetic catalysts to overcome issues like high costs and instability in traditional enzymes.
  • Porous materials, such as MOFs and COFs, offer high surface areas and thermal stability, making them ideal for immobilizing enzyme-mimic active sites.
  • The article reviews recent strategies for integrating these active species into various porous materials while also addressing the benefits, limitations, and future challenges of biomimetic catalysts.
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Article Synopsis
  • The study analyzed the relationship between Traditional Chinese Medicine (TCM) constitution types and metabolic indexes among 1,029 general patients from Changchun University Hospital between January 2021 and April 2023.
  • It found that the balanced constitution (BC) was most common, while blood stasis constitution (BSC) was rare; various constitutional types showed significant differences in body mass index (BMI) and blood pressure levels.
  • The study concluded that those with phlegm-dampness (PDC), yang-deficiency (YADC), and blood stasis (BSC) constitutions had more metabolic abnormalities compared to those with a balanced constitution (BC).
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Objective: To analyze the path relationships among influencing factors for kinesiophobia in knee arthroplasty patients through a structural equation model.

Background: The occurrence of kinesiophobia significantly impacts the rehabilitation process of knee arthroplasty patients. However, there is still a need to determine factors that contribute to reducing kinesiophobia.

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Objective: The activities and products of carbohydrate metabolism are involved in key processes of cancer. However, its relationship with hepatocellular carcinoma (HCC) is unclear.

Methods: The cancer genome atlas (TCGA)-HCC and ICGC-LIRI-JP datasets were acquired via public databases.

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Objectives: To observe whether acupuncture up-regulates chemokine CXC ligand 1 (CXCL1) in the brain to play an analgesic role through CXCL1/chemokine CXC receptor 2 (CXCR2) signaling in adjuvant induced arthritis (AIA) rats, so as to reveal its neuro-immunological mechanism underlying improvement of AIA.

Methods: BALB/c mice with relatively stable thermal pain reaction were subjected to planta injection of complete Freund adjuvant (CFA) for establishing AIA model, followed by dividing the AIA mice into simple AF750 (fluorochrome) and AF750+CXCL1 groups (=2 in each group). AF750 labeled CXCL1 recombinant protein was then injected into the mouse's tail vein to induce elevation of CXCL1 level in blood for simulating the effect of acupuncture stimulation which has been demonstrated by our past study.

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Ethnopharmacological Relevance: The roots and rhizomes of Bergenia purpurascens (Hook. f. et Thomson) Engl.

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This study aimed to investigate the chemical constituents of supercritical extract from Qi-nan Aquilariae Lignum Resinatum by silica gel column chromatography, thin-layer chromatography, and semi-preparative high-performance liquid chromatography. One new elemane-type and one new eudesmane-type sesquiterpene compounds were isolated from the extract, and their structures were identified by MS, UV, IR, NMR, and ECD spectroscopic techniques, and named aquqinanol C(1) and aquqinanol D(2). Both compounds are novel compounds.

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Reductive ring-opening of epoxides is a green pathway for synthesizing highly value-added alcohols. In this study, we present a practically applicable approach for the synthesis of anti-Markovnikov-type alcohols with high yields from aliphatic and aromatic epoxides under mild conditions by developing porous metal silicate (PMS) catalysts. A PMS material PMS-20 consists of cobalt and nickel bimetal redox-active sites, exhibiting exceptional catalytic activity and selectivity in the reductive ring-opening of terminal epoxides with >99% yield of primary alcohols.

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Background: High-power short-duration (HPSD) ablation strategy has emerged as a popular approach for treating atrial fibrillation (AF), with shorter ablation time. The utilized Smart Touch Surround Flow (STSF) catheter, with 56 holes around the electrode, lowers electrode-tissue temperature and thrombus risk. Thus, we conducted this prospective, randomized study to investigate if the HPSD strategy with STSF catheter in AF ablation procedures reduces the silent cerebral embolism (SCE) risk compared to the conventional approach with the Smart Touch (ST) catheter.

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Sepsis is a major disease that threatens human life and health. Clinically, it is mainly based on supportive treatment and lacks specific treatment methods. Acupuncture has important clinical significance in the prevention and treatment of sepsis.

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Background: Cardiorenal syndromes type II (CRS2) is a multi-organ ailment that manifests as a combination of cardiac and renal dysfunction, resulting in chronic kidney disease due to chronic cardiac insufficiency. It affects at least 26 million people worldwide, and its prevalence is increasing. Gualou Xiebai Decoction (GXD), a traditional Chinese medicine (TCM) with a rich history of application in the management of coronary artery disease, has been explored for its potential therapeutic benefits in CRS2.

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Background: Intra-abdominal infections (IAIs) is the most common type of surgical infection, with high associated morbidity and mortality rates. In recent years, due to the use of antibiotics, various drug-resistant bacteria have emerged, making the treatment of abdominal infections more challenging. Early surgical exploration can reduce the mortality of patients with abdominal infection and the occurrence of complications.

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Plumula Nelumbinis, the green embryo of a lotus seed, is widely consumed in China as a well-known food with medicinal effects. In this study, 14 alkaloids, including 4 new and 10 known alkaloids, were isolated from it, which were elucidated by comprehensive spectroscopic analysis, and were investigated for their antimelanogenic effects in vitro and in vivo. As a result, melanogenesis in α-MSH-stimulated B16F10 cells was reduced significantly by a new compound and known compound at a concentration of 0.

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The plasma membranes (PM) of mammalian cells contain diverse lipids, proteins, and carbohydrates that are important for systemic recognition and communication in health and disease. Cell membrane coating technology that imparts unique properties of natural plasma membranes to the surface of encapsulated nanoparticles is thus becoming a powerful platform for drug delivery, immunomodulation, and vaccination. However, current coating methods fail to take full advantage of the natural systems because they disrupt the complex and functionally essential features of PMs, most notably the chemical diversity and compositional differences of lipids in two leaflets of the PM.

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Background: In this retrospective study, we aimed to develop a nomogram to predict recurrence during a 1-year period of spinal manipulation/mobilization (SM/M) in patients with low back pain (LBP) with greater pain intensity, more severe comorbid conditions, or a neuropathic component.

Methods: A total of 786 consecutive patients with LBP treated with SM/M as primary therapy were divided into training (n = 545) and validation (n = 241) sets. Cox regression analyses were used to assess the relative value of clinical factors and lumbar magnetic resonance imaging features associated with recurrence during the 1-year period.

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Rheumatoid arthritis (RA) is an autoimmune disease that generally affects the joints. In the face of inflammation-induced cartilage and bone damage, RA treatment remains insufficient. While research evidence indicates that acupuncture can exert anti-inflammatory and analgesic effects, improve the joint function of RA patients, and delay the disease, data on whether it can promote RA repair are lacking.

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Postharvest pathogens can affect a wide range of fresh fruit and vegetables, including grapes, resulting in significant profit loss. Isoquinoline alkaloids of Mahonia fortunei, a Chinese herbal medicine, have been used to treat infectious microbes, which might be effective against postharvest pathogens. The phytochemical and bioactive investigation of this plant led to the isolation of 18 alkaloids, of which 9 compounds inhibited the growth of Botrytis cinerea and 4 compounds against Penicillium italicum.

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This study used m-chloropheniperazine(MCPP) and chronic unforeseeable mild stress(CUMS) to induce the rat models of anxiety and depression, respectively. The behaviors of rats were observed by the open field test(OFT), light-dark exploration test(LDE), tail suspension test(TST), and forced swimming test(FST), and the antidepressant and anxiolytic effects of agarwood essential oil(AEO), agarwood fragrant powder(AFP), and agarwood line incense(ALI) were explored. The enzyme-linked immunosorbent assay(ELISA) was used to determine the levels of 5-hydroxytryptamine(5-HT), glutamic acid(Glu), and γ-aminobutyric acid(GABA_A) in the hippocampal area.

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The ever-increasing NO emission has caused severe environmental issues and adverse effects on human health. Electrocatalytic reduction is regarded as a win-win technology for NO treatment with value-added NH generation, but the process is mainly relied on the metal-containing electrocatalysts. Here, we developed metal-free g-CN nanosheets (deposited on carbon paper, named as CNNS/CP) for NH synthesis from electrochemical NO reduction under ambient condition.

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Three new steroidal alkaloids, veratrasines A - C (1-3), along with ten known analogues (4-13) were isolated from the roots of Veratrum stenophyllum. Their structures were elucidated by NMR and HRESIMS data and comparison with the reported data in the literatures. A plausible biosynthetic pathway for 1 and 2 were proposed.

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Many basic studies on acupuncture need to be carried out on experimental animals. However, the safety of acupuncture in experimental animals has been neglected for a long time. In the present paper, we make a discussion on the current situations, causes, its influence on research results and countermeasures of acupuncture safety events in experimental animals, so as to promote the safety evaluation of acupuncture in experimental animals and the standardized operation of acupuncture.

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Objective: To evaluate the efficacy and safety of acupuncture in treating symptoms for Cancer-related Insomnia(CRI) patients.

Methods: Seven databases were searched from the time of database establishment to 31 March 2022. Randomized Controlled Trials (RCTs) on acupuncture intervention for CRI were collected.

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Acupoint is the initial response site of acupuncture stimulus and also the source link of the effect onset of acupuncture. Acupuncture is a mechanical physical stimulus. How is the mechanical force of acupuncture transduced into neuroelectrical and biochemical signals at acupoint? How does the physiochemical information of acupoint launch acupuncture effect? All of these remain the common and crucial questions in the study of acupuncture effect mechanism.

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2-(2-Phenylethyl)chromone derivatives are regarded as key components in agarwood. An oxygen-containing heterocycle with a benzoannelated γ-pyrone moiety form the bioactive core of 2-(2-phenylethyl)chromones. With different substituents and positions, 2-(2-phenylethyl)chromone derivatives exhibit diverse biological properties, such as antioxidant, antimicrobial, neuroprotective, anti-inflammatory, and acetylcholinesterase inhibitory activities.

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Article Synopsis
  • Extracellular vesicles are small particles surrounded by a lipid membrane that facilitate communication between cells and their environment; they include various types like apoptotic bodies, microvesicles, and exosomes.
  • New research highlights the significant role of plant extracellular vesicles in regulating interactions with other organisms and in cellular communication by transporting signaling molecules like proteins and nucleic acids.
  • The review discusses methods for isolating plant extracellular vesicles and explores their potential in anti-tumor therapies, suggesting that advancements in their use for drug delivery could enhance clinical applications.
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