15,045 results match your criteria: "Guizhou Medical University; jiahongw@gmc.edu.cn.[Affiliation]"

With the rise of bone tissue engineering (BET), 3D-printed HA/PCL scaffolds for bone defect repair have been extensively studied. However, little research has been conducted on the differences in osteogenic induction and regulation of macrophage (MPs) polarisation properties of HA/PCL scaffolds with different fibre orientations. Here, we applied 3D printing technology to prepare three sets of HA/PCL scaffolds with different fibre orientations (0-90, 0-90-135, and 0-90-45) to study the differences in physicochemical properties and to investigate the response effects of MPs and bone marrow mesenchymal stem cells (BMSCs) on scaffolds with different fibre orientations.

View Article and Find Full Text PDF

Deubiquitinating enzymes (DUBs) are integral regulators of protein stability. Among these, Ubiquitin-specific protease 18 (USP18) has emerged as a potential therapeutic target for heart failure. However, its precise role in atherosclerosis remains to be comprehensively understood.

View Article and Find Full Text PDF

Importance: The impact of adjunctive intra-arterial tenecteplase administration following near-complete to complete reperfusion by endovascular thrombectomy (EVT) for acute ischemic stroke is unknown.

Objective: To assess the efficacy and adverse events of adjunctive intra-arterial tenecteplase in patients with large vessel occlusion stroke who had achieved near-complete to complete reperfusion (defined as a score on the expanded Thrombolysis in Cerebral Infarction [eTICI] scale of 2c to 3) after EVT.

Design, Setting, And Participants: Investigator-initiated, randomized, open-label, blinded outcome assessment trial implemented at 34 hospitals in China among 540 patients with stroke due to proximal intracranial large vessel occlusion within 24 hours of the time they were last known to be well, with an eTICI score of 2c to 3 after EVT, and without prior intravenous thrombolysis.

View Article and Find Full Text PDF

Importance: Persisting or new thrombi in the distal arteries and the microcirculation have been reported to limit the benefits of successful endovascular thrombectomy for patients with acute ischemic stroke. It remains uncertain whether intra-arterial thrombolysis by urokinase following near-complete to complete reperfusion by thrombectomy improves outcomes among patients with ischemic stroke due to large vessel occlusion.

Objective: To assess the efficacy and adverse events of intra-arterial urokinase after near-complete to complete reperfusion by thrombectomy for acute ischemic stroke due to large vessel occlusion.

View Article and Find Full Text PDF

Purpose: To evaluate the long-term impacts of the feedback intervention on controlling inappropriate use of antimicrobial prescriptions in primary care institutions in China, as a continuation of the previous feedback intervention trial.

Methods: After the intervention ended, we conducted a 12-month follow-up study. The prescription data were collected from the baseline until the end of the follow-up period.

View Article and Find Full Text PDF

Camellia seed oil (CSO), a potential prebiotic agent, can significantly increase the relative abundance of () in mice gut microbiota following oral administration, this study aims to investigate the enhancing effect in vitro. The results showed that after 24-h co-cultivation with 0.5% (v/v) CSO, the growth of increased from 11.

View Article and Find Full Text PDF

Purpose: Analyze the incidence and risk factors of thyroid dysfunction in patients with advanced nasopharyngeal carcinoma (LA-NPC) after intensity-modulated radiotherapy (IMRT) and PD⁃1 inhibitor treatment and their relationship with treatment efficacy and prognosis.

Methods: Eighty-five LA-NPC patients treated with IMRT and PD-1 inhibitors were retrospectively collected from March 1, 2019, to May 30, 2022. The incidence of thyroid dysfunction after combination therapy was analyzed.

View Article and Find Full Text PDF

Background: Limited studies have suggested an effect of dietary choline intake on uric acid levels. We aim to investigate the associations between choline intake and hyperuricemia (HUA), as well as the mediating role of kidney function in this relationship, among the Chinese population aged 6-17 years.

Methods: Participants were divided into quartiles according to residual energy-adjusted dietary choline intake in our cross-sectional study.

View Article and Find Full Text PDF

What Is Already Known About This Topic?: Lower extremity musculoskeletal diseases (LE-MSDs) have emerged as a significant contributor to the global disease economic burden and worker absenteeism, becoming a global public health concern. However, the epidemic characteristics of LE-MSDs among occupational populations in China are unknown.

What Is Added By This Report?: This report finds that the LE-MSDs prevalence rate among key occupational groups in China is 17.

View Article and Find Full Text PDF

The management of diabetic wounds faces significant challenges due to the excessive activation of reactive oxygen species (ROS), dysregulation of the inflammatory response, and impaired angiogenesis. A substantial body of evidence suggests that the aforementioned diverse factors contributing to the delayed healing of diabetic wounds may be associated with impaired autophagy. Impaired autophagy leads to endothelial and fibroblast dysfunction and impedes macrophage phenotypic transformation.

View Article and Find Full Text PDF

The human skin and oral cavity harbor complex microbial communities, which exist in dynamic equilibrium with the host's physiological state and the external environment. This study investigates the microbial atlas of human skin and oral cavities using samples collected over a 10-month period, aiming to assess how both internal and external factors influence the human microbiome. We examined bacterial community diversity and stability across various body sites, including palm and nasal skin, saliva, and oral epithelial cells, during environmental changes and a COVID-19 pandemic.

View Article and Find Full Text PDF

Heterogeneous nuclear ribonucleoprotein C promotes non-small cell lung cancer progression by enhancing XB130 mRNA stability and translation.

Cancer Cell Int

January 2025

Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education & Key Laboratory of Medical Molecular Biology of Guizhou Province, Guizhou Medical University, 9 Beijing Road, Guiyang, Guizhou, 550004, P. R. China.

Background: XB130, a classical adaptor protein, exerts a critical role in diverse cellular processes. Aberrant expression of XB130 is closely associated with tumorigenesis and aggressiveness. However, the mechanisms governing its expression regulation remain poorly understood.

View Article and Find Full Text PDF

Objective: To investigate the reparative effect of hypoxia pretreated hAMSCs on radiation-induced damage to salivary gland function in mice.

Methods: hAMSCs were separated from human amniotic tissues by mechanical and enzymatic digestion methods and a 15 Gy electron beam was used to locally irradiate the neck of mouse to create a salivary gland injury model. The mouse models were randomly divided into four groups: control group, IR+PBS group, IR+Nor group and IR+HP group.

View Article and Find Full Text PDF

Harnessing HDAC-targeted oleanolic acid derivatives for combined anti-cancer and hepatoprotective effects.

Int J Biol Macromol

January 2025

State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Provincial Key Laboratory of Pharmaceutics, School of Pharmacy, Guizhou Medical University, Guiyang 550004, China. Electronic address:

The development of anti-tumor drugs with hepatoprotective properties has always been highly valued due to their dual capabilities of safeguarding the liver and combating tumors. Moreover, when used in conjunction with specific chemotherapy drugs, they can enhance the efficacy of cancer treatment while simultaneously reducing liver damage caused by chemotherapeutic agents. Our research focused on oleanolic acid (OA), a natural compound known for its liver-protective effects.

View Article and Find Full Text PDF

Triiodothyronine activates THRβ to promote PGC1α expression alleviating PQ-induced pulmonary fibrosis.

Ecotoxicol Environ Saf

January 2025

Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, 149 Dalian Road, Huichuan District, Zunyi, Guizhou 563003, China; Guizhou Key Laboratory of Anesthesia and Organ Protection, Zunyi Medical University, Zunyi, Guizhou 563000, China. Electronic address:

Thyroid hormone (TH) and it most active form triiodothyronine (T3) are crucial in promoting mitochondrial biogenesis and maintaining cellular homeostasis during the stress response, but their role in paraquat (PQ)-induced pulmonary fibrosis isunclear. The aim of this study was to examine whether there was a deficiency of TH in mouse lung tissue after PQ administration, and to explore the effect of T3, and potential mechanisms of action, in alleviation of PQ-induced pulmonary fibrosis. We found that the activity and expression of iodothyronine deiodinase 2 (DIO2), an enzyme that activates TH, were higher in the lungs of patients with pulmonary fibrosis than in controls.

View Article and Find Full Text PDF

Machine learning-based 28-day mortality prediction model for elderly neurocritically Ill patients.

Comput Methods Programs Biomed

January 2025

Department of Intensive Care Unit, The Affiliated Hospital of Guizhou Medical University, No. 28, Guiyi Road, Yunyan District, Guiyang, Guizhou 550001, China. Electronic address:

Background: The growing population of elderly neurocritically ill patients highlights the need for effective prognosis prediction tools. This study aims to develop and validate machine learning (ML) models for predicting 28-day mortality in intensive care units (ICUs).

Methods: Data were extracted from the Medical Information Mart for Intensive Care IV(MIMIC-IV) database, focusing on elderly neurocritical ill patients with ICU stays ≥ 24 h.

View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on the role of miR-483-5p in regulating the overexpression of IGF2 and H19, which are linked to hepatocellular carcinoma (HCC).
  • miR-483-5p enhances IGF2 and H19 expression by binding to their enhancer, activating transcription, and promoting new interactions between the enhancer and gene promoters through chromatin loops.
  • The research highlights that MED1 is crucial in this process, influencing both chromatin structure and the aggressive behavior of HCC cells, indicating potential targets for therapeutic interventions.
View Article and Find Full Text PDF

Genetic variations in IGF2BP2 and CAPN10 and their interaction with environmental factors increase gestational diabetes mellitus risk in Chinese women.

Gene

January 2025

Department of Immunology, Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi Medical University, Zunyi, China. Electronic address:

Article Synopsis
  • - This study explores the link between genetic variations in the IGF2BP2 and CAPN10 genes and the risk of gestational diabetes (GDM) among Chinese women, involving 1,566 participants.
  • - Significant findings showed that the C allele of IGF2BP2/rs11927381 increased GDM risk, while the TC genotype of CAPN10/rs2975760 was linked to reduced risk, with both genes interacting in ways that heightened susceptibility to GDM.
  • - Environmental factors, like increased BMI and specific exposures, were also found to elevate the risk of GDM, highlighting the complex interplay between genetics and environmental influences on this condition.
View Article and Find Full Text PDF

Macrocyclic Diterpenoids from Possessing Activity Towards Autophagic Flux.

Int J Mol Sci

December 2024

State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang 550014, China.

Euphjatrophanes H-L (-), four new jatrophane-type and one new lathyrane-type diterpenoid, were isolated from , along with eight known diterpenoids (-). Their structures were established on the basis of extensive spectroscopic analysis and X-ray crystallographic experiments. All compounds were subjected to bioactivity evaluation using flow cytometry in autophagic flux assays with HM mCherry-GFP-LC3 cells, the human microglia cells which stably expressed the tandem monomeric mCherry-GFP-tagged LC3.

View Article and Find Full Text PDF

Exploring the Impact of Pharmaceutical Excipient PEG400 on the Pharmacokinetics of Mycophenolic Acid Through In Vitro and In Vivo Experiments.

Int J Mol Sci

December 2024

State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China.

Mycophenolic acid (MPA) is a commonly used immunosuppressant. In the human body, MPA is metabolized into mycophenolic acid 7-O-glucuronide (MPAG) and mycophenolic acid acyl-glucuronide (AcMPAG) mainly through liver glucuronidation, which involves UDP-glucuronosyltransferase (UGTs) and transfer proteins. Research has indicated that the pharmaceutical excipient PEG400 can impact drug processes in the body, potentially affecting the pharmacokinetics of MPA.

View Article and Find Full Text PDF

, a traditional Miao medicine with significant clinical potential, is rich in polysaccharides. Despite its importance, there is a scarcity of research on the structure and activities of these polysaccharides. In this study, polysaccharides from (GJPs) were extracted using various methods, including heated reflux extraction (HRE), acidic extraction (ACE), alkaline extraction (AAE), microwave-assisted extraction (MAE), enzymatic extraction (EAE), pressurized liquid extraction (PLE), and deep eutectic solvents extraction (DESE).

View Article and Find Full Text PDF

The aim of the present study was to optimize the process parameters for the extraction and purification of total flavonoids from L., in addition to analyzing their chemical composition and evaluating their activity against varicella-zoster virus (VZV) and antioxidant activity. The optimum extraction process was determined using one-way and response surface methods with the following conditions: ethanol concentration of 82.

View Article and Find Full Text PDF

LINC01271 promotes fracture healing via regulating miR-19a-3p/PIK3CA axis.

J Orthop Surg Res

January 2025

Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Baiyun District, Guangzhou, 510515, Guangdong, China.

Objective: Osteoporosis increases the risk of fragility fractures, impacting patients' lives. This study aimed to investigate whether LINC01271 was involved in the process of fragility fractures and healing, providing a new perspective for its diagnosis and treatment.

Methods: This study included 94 healthy individuals, 82 patients with osteoporosis, and 85 patients with fragility fractures as subjects.

View Article and Find Full Text PDF

Background: Fasciolopsis buski is a large fluke that parasitises the human small intestine, with its infection in the biliary tract being even rarer. Given its relatively rare occurrence in recent years, the clinical diagnosis of F. buski infections can pose certain challenges.

View Article and Find Full Text PDF