8,360 results match your criteria: "Hunan Normal University.[Affiliation]"

PPAR affects hepatic lipid homeostasis by perturbing necroptosis signals in the intestinal epithelium.

Acta Pharm Sin B

November 2024

Department of Pharmacology, Taikang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan 430071, China.

Rapid turnover of the intestinal epithelium is a critical strategy to balance the uptake of nutrients and defend against environmental insults, whereas inappropriate death promotes the spread of inflammation. PPAR is highly expressed in the small intestine and regulates the absorption of dietary lipids. However, as a key mediator of inflammation, the impact of intestinal PPAR signaling on cell death pathways is unknown.

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FRET-Based Nanoprobe with Adaptive Background Suppression for Reliable Detection of ONOO/ClO in Whole Blood: Facilitating Monitoring of Sepsis Progression and Hemolytic Disorders.

Anal Chem

December 2024

Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China.

Abnormal fluctuations in blood biomarker levels serve as critical indicators of the disease. However, detecting endogenous substances in whole blood using fluorescent probes is challenging due to its complex composition. This challenge primarily arises from two factors: the high autofluorescence of whole blood and the intrinsic fluorescence of the probe, both contributing to significant background fluorescence in the detection system.

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This study is to explore the effects of paeoniflorin (PF) on oxidative stress (OS) and inflammation in Parkinson's disease (PD) via the HSF1-NRF1 axis. SH-SY5Y cells were pretreated with PF and induced with α-synuclein preformed fibrils (PFF), followed by gain- and loss-of-function assays. Afterward, detection was conducted on cell viability, mitochondrial membrane potential ([Formula: see text]m), and reactive oxygen species (ROS), cyclooxygenase (COX)-2, and inducible nitric oxide synthase (iNOS) levels.

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Multiple gating processes associated with the distal end of the S6 segment of domain II in the Nav channels.

J Biol Chem

December 2024

The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, China; Peptide and Small Molecule Drug R&D Platform, Furong Laboratory, Hunan Normal University, Changsha, Hunan, China; Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, China. Electronic address:

Voltage-gated sodium (Nav) channels are transmembrane proteins that play crucial roles in the initiation and propagation of action potentials (APs) in excitable tissues such as the heart, muscles, and nerves. The distal ends of the four domain S6 segments of Nav channels contain hydrophobic residues, which form an intracellular gate. This gate allows Nav channels to control ion flux in excitable cells by opening and closing.

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Bladder cancer is the most common malignant tumor of the urinary system. Currently, treatment strategies for bladder cancer remain limited, highlighting the urgent need to explore novel therapeutic approaches. Sotorasib, the first successful small molecule drug targeting KRAS, has been approved for treating non-small cell lung cancer (NSCLC), but it has not yet been studied in bladder cancer.

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Objective: This study aimed to evaluate the clinical utility of methylation (CISCER) test in triaging high-risk human papillomavirus (hrHPV)-positive women.

Methods: We enrolled women who underwent opportunistic screening at Cervical Disease outpatient clinics of Xuzhou Maternity and Child Health Hospital, and Yueyang Central Hospital from December 2022 to May 2024. The effectiveness of CISCER and cytology tests in triaging hrHPV+ patients was analyzed.

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Spermatogenesis is a sophisticated biological process by which spermatogonial stem cells (SSCs) undergo self-renewal and differentiation into spermatozoa. Molecular mechanisms underlying fate determinations of human SSCs by key genes and signaling pathways remain elusive. Here, we report for the first time that Yes1-associated transcriptional regulator (YAP1) is required for fate determinations of SSCs and male fertility by interacting with RAD21 and targeting NEDD4 in humans and mice.

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Non-Covalent Self-Assembly Behaviors Based on Racemic Binaphthol Scaffolds.

Chem Asian J

December 2024

Laboratory of Chemical Biology and Traditional Chinese Medicine, Ministry of Educational of China, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, 410081, China.

Understanding the fundamental mechanisms involved in the construction and organization of multi-scale structures is crucial for the design and manufacture of complex functional systems with long-range molecular arrangements. In this paper, a series of compounds have been synthesized using racemic binaphthols as the skeleton and a Suzuki coupling reaction for derivatization at the 6,6' positions, which resulted in various structures bearing different functional groups. Control over the self-assembly of these racemic binaphthol derivatives was successfully achieved by adjusting the types and positions of the substituents in the parent binaphthol compound, which revealed the key factors influencing the types of the non-covalent interactions and the self-assembly process.

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Host-stabilized charge transfer (HSCT) has been widely utilized in macrocycle-derived supramolecular assemblies and architectures. However, there has been less research attention focused on the direct fabrication of pure organic photocatalysts using HSCT. Herein, four viologen derivatives (m-PV2+, m-BPV2+, d-PV2+, and d-BPV2+) with different electron donor-acceptor (D-A) structures were synthesized.

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C2230, a preferential use- and state-dependent CaV2.2 channel blocker, mitigates pain behaviors across multiple pain models.

J Clin Invest

December 2024

Department of Pharmacology and Therapeutics, College of Pharmacy, University of Florida, Gainesville, United States of America.

Article Synopsis
  • - Antagonists like Ziconotide and Gabapentin target CaV2.2 calcium channels to relieve chronic pain, but their clinical use is limited due to issues like narrow therapeutic windows and potential for misuse or side effects.
  • - A new compound called C2230 has been identified as a blocker of CaV2.2 channels, showing multiple beneficial effects such as trapping the channel in an inactivated state and specifically targeting pain without affecting other ion channels or motor functions.
  • - C2230 effectively reduced pain-like behaviors in various animal models and human neurons, suggesting it could be developed as a new analgesic with a unique binding mechanism that differentiates it from existing treatments.
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Spatially Quantitative Imaging of Enzyme Activity in a Living Cell.

J Am Chem Soc

December 2024

State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.

Enzyme activity plays a key role in cell heterogeneity. Its spatially quantitative imaging in a living cell not only directly displays but also helps people to understand cell heterogeneity. Current methods are hard to achieve due to the short intracellular retention or lack of internal reference of the imaging probes.

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Alkaline phosphatase is associated with vascular depression in patients with severe white matter hyperintensities.

Front Neurosci

November 2024

Department of Neurosurgery, Hunan Provincial People's Hospital, Hunan Normal University, Changsha, Hunan, China.

Background And Purpose: Cerebrovascular disease (CVD) poses a substantial risk for depression. Elevated levels of alkaline phosphatase (ALP) serve not only as an independent predictive factor for acute cerebrovascular events and unfavorable prognoses but also as a significant predictor of depression in premenopausal women. Nevertheless, the association between elevated ALP levels and vascular depression (VDe) in patients presenting with white matter hyperintensities (WMHs) remains unclear.

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Exploring bifunctional molecules for anti-SARS-CoV-2 and anti-inflammatory activity through structure-based virtual screening, SAR investigation, and biological evaluation.

Int J Biol Macromol

December 2024

Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China. Electronic address:

As new variants of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continue to emerge, they raise increasing concerns about the efficacy of neutralizing antibodies and vaccines. This situation underscores the urgent need for specific drugs against the coronavirus disease 2019 (COVID-19). Given that COVID-19 is particularly associated with substantial inflammation, the development of novel, effective antiviral and anti-inflammatory agents represents a promising research direction.

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Oxidations of (2,2'-Diphenyl)ethylidene-Bridged Porphyrin Dimers.

Org Lett

December 2024

Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.

Oxidation reactions of (2,2'-diphenyl)ethylidene-bridged porphyrin dimers were examined for the synthesis of (2,2'-diphenyl)ethylidene-inserted porphyrin arch tape dimers. These reactions provided, in addition to the target arch tape dimers, unexpected products such as a bicyclo[3.3.

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HSC70 functions as a negatively regulator in IFN signaling pathway via suppressing K63-linked ubiquitination of RIG-I in black carp.

Dev Comp Immunol

January 2025

State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, 410081, China.

Heat shock cognate 70 (HSC70), a highly conserved molecular chaperone in the heat shock protein 70 (HSP70) family, plays an essential role in maintaining the homeostasis of the cellular environment. Furthermore, although previous studies have investigated potential function of HSC70 in innate antiviral immunity, further research is still required to fully elucidate its role. In this study, we cloned and characterized the HSC70 homolog gene from black carp (Mylopharyngodon piceus), which consists of 1950 nucleotides encoding 650 amino acids, migrates at approximately 71 kDa on SDS-PAGE, and is distributed in the cytoplasm.

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Structure-activity relationship study of novel evodiamine amino acid conjugates with potent anti-colorectal cancer efficacy.

Eur J Med Chem

February 2025

The First Affiliated Hospital, School of Pharmaceutical Science, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China. Electronic address:

Evodiamine has been a promising lead structure with broad-spectrum antitumor activity. Druggability optimization is the most challenging part of evodiamine-based lead-to-candidate campaign. Amino acids as building blocks for conjugates are widely incorporated into approved drug and drug candidates, demonstrating highly attractive druggability.

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The wolf spider of genus Xerolycosa Dahl, 1908 from China is reviewed, including four species: X. miniata (C.L.

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The Cu(MeCN)PF-catalyzed reaction of 1-(2-hydroxyphenyl)-propargyl alcohols with aryl/alkyl mercaptan and subsequent treatment with KCO only offered 3-(alkylthio)benzofurans, whereas the stoichiometric-exceeding CuI-mediated reaction and subsequent treatment with DIPEA furnished 2-(alkylthiomethyl)benzofurans with high selectivity. The amount of Cu(I) salts plays a key role in selective formation. This unique protocol for the selective construction of the two series of benzofurans containing alkylthio group proved to be suitable for broad substrates and except for aliphatic alkynyl alcohols.

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Background: Overweight and obesity are the most common high-risk conditions that increase the risk of adverse outcomes during pregnancy, childbirth, and the postpartum period. Dysfunctions in trophoblastic peroxisome proliferator-activated receptor gamma (PPARγ) contribute to a variety of related pregnancy disorders.

Objectives: This study investigated whether PPARγ influences chorionic trophoblast cell damage induced by high glucose (HG) and high lipid (HL) by regulating insulin-like growth factor-1 (IGF-1).

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Dynamic-Cycling Zinc Sites Promote Ruthenium Oxide for Sub-Ampere Electrochemical Water Oxidation.

Nano Lett

December 2024

Key Laboratory of Light Energy Conversion Materials of Hunan Province College, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, Hunan, China.

Although iridium-based electrocatalysts are commonly regarded as the sole stable operating acidic oxygen evolution reaction (OER) catalysts in proton-exchange membrane water electrolysis (PEMWE) devices, their exorbitant cost and scarcity severely restrict their widespread application. Herein, we introduce a promising alternative to iridium: zinc-doped ruthenium dioxide (TE-Zn/RuO), which exhibits remarkable and enduring activity for acidic OER. characterizations elucidate that the dynamic cycling of zinc dopants serves as both electron acceptors and donors, facilitating the activation of Ru sites at low overpotentials while thwarting peroxidation at high overpotentials, thus concurrently achieving heightened activity and robust stability.

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Intangible cultural heritage represents a cultural evolution shaped by human responses to adapting and transforming environments. Unveiling the characteristics and patterns of its spatial distribution can offer a more scientific foundation for the protection of intangible cultural heritage and the development of heritage tourism. By using ArcGIS software and Geo-detector, the regional differentiation characteristics and influencing mechanisms of Intangible Cultural Heritage, specifically the Hometown of Chinese Folk Culture and Art (HCFCA), have been investigated.

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This protocol helps evaluators gather current data and prepare annual assessments based on specific indicators to provide insights into physical activity among esports players and identify the challenges they face. This manuscript aims to develop a methodology for creating a standardized monitoring system to assess physical exercise and performance in esports players at national, regional, and global levels. This study protocol proposes 20 online sociodemographic indicators to help characterize participating countries and outline each country's demographic profile.

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The modulation of cholecystokinin receptor 1 in the NAc core input from VTA on METH-induced CPP acquisition.

Life Sci

January 2025

College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Shijiazhuang, Hebei Province, China; Key Laboratory of Neural and Vascular Biology, Ministry of Education, Shijiazhuang, Hebei Province, China; Hainan Tropical Forensic Medicine Academician Workstation, Haikou, Hainan Province, China. Electronic address:

Article Synopsis
  • - The study investigates how cholecystokinin (CCK) receptors, specifically CCK1 receptors, play a role in methamphetamine (METH)-induced addiction by affecting the nucleus accumbens core (NAcC) and its connections with other brain areas.
  • - Using a mouse model, researchers created a condition that mimics METH addiction and explored the effects of genetically knocking out CCK receptor subtypes to understand their specific roles in the METH addiction process.
  • - Results showed that disruption of CCK1R in NAcC hindered the development of METH-induced conditioned place preference and altered neuronal excitability, indicating that CCK1R is essential for the synaptic changes in the
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Detection of TNF-α using the established ab-MPs-CLIA.

Talanta

December 2024

State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, China. Electronic address:

Tumor necrosis factor alpha (TNF-α) is a key cytokine in inflammation and immune responses, making its rapid and accurate detection essential for disease diagnosis and management. In this study, we developed a highly sensitive chemiluminescence immunoassay (CLIA) using antibody-coated magnetic particles (Ab-MPs-CLIA) for TNF-α detection. From nine candidate antibodies, we identified an optimal pair through epitope competition and affinity assessments, significantly improving assay performance.

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