Publications by authors named "Mei-Hua Li"

Unlabelled: One of the most critical intervention strategies when working with individuals with significant language delays associated with autism spectrum disorder and related developmental delays is teaching mands. For mand training to be effective, an establishing operation (EO) must be in effect, yet EOs are often difficult to observe. Before learning to mand, an individual may point to or approach a reinforcer, which likely indicates an EO related to that reinforcer, and may be considered an indicating response (IR).

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Objective: To assess the utility of predictive models using ultrasound radiomic features to predict cervical lymph node metastasis (CLNM) in solitary papillary thyroid carcinoma (PTC) patients.

Methods: A total of 570 PTC patients were included (456 patients in the training set and 114 in the testing set). Pyradiomics was employed to extract radiomic features from preoperative ultrasound images.

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Aiming to address the problem of soil environmental pollution caused by the large-scale use of plastic film in agricultural production in China, field experiments were carried out by applying degradable plastic film. Pumpkin was used as the research material to explore the effects of black common plastic film (CK), white degradation plastic film (WDF), black degradation plastic film (BDF), and black CO-based degradable plastic film (C-DF) on soil physicochemical properties, root growth and yield, and soil quality. The results showed that the soil water content and temperature of the three degradable plastic films were lower than those of ordinary plastic films to different degrees; there was no significant difference in soil organic matter content among the treatments.

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Background And Objectives: Pathophysiological changes of right ventricle (RV) after repair of tetralogy of Fallot (TOF) are coupled with a highly compliant low-pressure pulmonary artery (PA) system. This study aimed to determine whether pulmonary vascular function was associated with RV parameters and exercise capacity, and its impact on RV remodeling after pulmonary valve replacement.

Methods: In a total of 48 patients over 18 years of age with repaired TOF, pulmonary arterial elastance (Ea), RV volume data, and RV-PA coupling ratio were calculated and analyzed in relation to exercise capacity.

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Gliomas are the most common malignant tumors of the central nervous system, with extremely bad prognoses. Cuproptosis is a novel form of regulated cell death. The impact of cuproptosis-related genes on glioma development has not been reported.

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Article Synopsis
  • Objective is to analyze the serological and molecular characteristics of an a blood subtype specimen.
  • Methods include blood type identification through serological tests and PCR sequencing for ABO genotyping, followed by constructing a 3D molecular model to evaluate the stability of the GTA mutant.
  • Results show discrepancies in serological typing, identified mutations affecting protein stability, and indicate that serological characteristics are not sufficient alone to determine the a subtype, suggesting it may be linked to the GTA mutant affecting enzyme stability.
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  • Chronic Sciatica is a painful condition with significant impacts on health and quality of life, and current treatments are ineffective long-term, prompting this study on acupuncture's potential benefits.
  • The study involves 216 patients, randomly assigned to receive either real or sham acupuncture, with treatment over 4 weeks and follow-ups extending to 52 weeks to evaluate pain and disability outcomes.
  • The trial is ethically approved, will gather informed consent from participants, and aims to publish its findings in peer-reviewed journals to share results with the medical community.
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  • The study investigates the link between inflammatory markers and depression in middle-aged and elderly patients with spinal cord injury (SCI).
  • It focuses on how serum fibrinogen levels relate to depressive symptoms, finding that higher levels are associated with increased depression scores and history.
  • The results suggest that monitoring fibrinogen levels might help diagnose depression in SCI patients, indicating a need for future longitudinal studies.
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Chronic obstructive pulmonary disease is characterized by chronic inflammation of the airway and lungs. Accumulating evidence has suggested that erythromycin (EM) plays a protective role against cigarette smoke-induced oxidative stress and the inflammatory response. However, the underlying mechanisms remain relatively unclear.

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NG2 cells are highly proliferative glial cells that can self-renew or differentiate into oligodendrocytes, promoting remyelination. Following demyelination, the proliferative and differentiation potentials of NG2 cells increase rapidly, enhancing their differentiation into functional myelinating cells. Levels of the transcription factors Olig1 and Olig2 increase during the differentiation of NG2 cells and play important roles in the development and repair of oligodendrocytes.

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  • Spinal cord injuries (SCIs) are complex and challenging to treat, with a history of research dating back to 1911 when the first animal model was created.
  • Many studies primarily concentrate on the molecular aspects of SCIs, but there is growing awareness that these injuries can also lead to mental and cognitive disorders.
  • There is currently no agreement on the best animal model for researching the brain changes that occur as a result of spinal cord injuries.
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Introduction: Anti-interferon-gamma (anti-IFN-γ) autoantibody increases susceptibility to lower-virulence pathogens and causes immunodeficiency syndrome in HIV-negative patients.

Patient Concerns: A 69-year-old Chinese man presented with a 2-month history of pruritic skin lesions on his forearms, trunk, and legs. He was diagnosed with 5 opportunistic infections without conventional immunosuppression-associated factors in past.

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  • The study evaluates the effectiveness and safety of deep brain stimulation (VIM-DBS) for essential tremor, focusing on outcome predictors and adverse effects.
  • A meta-analysis of 46 articles involving 1714 patients showed an average improvement of 61.3% in tremor control, with consistent results across different tremor types.
  • The most common adverse effect was dysarthria, with a notable percentage attributed to stimulation-related issues, indicating that while VIM-DBS is generally effective, it also carries certain risks.
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  • The study focused on creating a nomogram to predict the overall survival of patients with cerebral anaplastic glioma, analyzing data from 1939 patients diagnosed between 1973 and 2013.
  • Key independent factors affecting survival included age, tumor site, marital status, histology, radiotherapy, and surgery, which were incorporated into the nomogram.
  • The nomogram demonstrated good predictive performance, with strong concordance index values and calibration, enhancing its utility alongside the WHO classification for personalizing patient treatment strategies.
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  • The study investigates how fluid shear stress (FSS) affects endothelial cell injury through the protein kinase C alpha (PKCα) pathway, focusing on the proteins VE-cadherin and p120-catenin.
  • A T chamber system was used to expose human umbilical vein endothelial cells (HUVECs) to FSS for different durations, revealing changes in cell shape, density, and protein expression levels.
  • Results indicated that FSS increases phosphorylated PKCα and NF-κB levels while decreasing p120ctn and VE-cadherin expression, suggesting that PKCα may play a critical role in regulating cell integrity under mechanical stress.
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Corticosteroid insensitivity is a feature of airway inflammation in chronic obstructive pulmonary disease (COPD). Erythromycin exhibits anti-inflammatory activity in COPD, but the concrete mechanism is still unclear. This study aimed to investigate the effects of erythromycin on corticosteroid sensitivity in peripheral blood mononuclear cells (PBMCs) and U937 cells (a human monocytic cell line).

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Background: Corticosteroid is one of the main treatments for interstitial lung disease (ILD). Cryptogenic-organizing pneumonia (COP) is sensitive to corticosteroid therapy, whereas idiopathic pulmonary fibrosis (IPF) is not. Glucocorticoid receptor-α (GR-α) and histone deacetylase 2 (HDAC2) play critical roles in the sensitivity to corticosteroid therapy; however, it is unclear whether HDAC2 and/or GR-α are expressed in the lung tissues of patients with COP and/or IPF.

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Neutrophil extracellular traps (NETs) may play a critical role in smoking-related chronic airway inflammation. However, the mechanism by which NETs induced by cigarette smoke initiate the adaptive immunity in chronic obstructive pulmonary disease (COPD) is not fully understood. In this study, we explored the effects of NETs induced by cigarette smoke on the myeloid dendritic cells (mDCs) and Th1 and Th17 cells.

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Background Both meteorological factors and morphological factors are important factors to predict intracranial aneurysm rupture. This study investigated the relationship between meteorological factors and aneurysmal subarachnoid hemorrhage (aSAH). Additionally, the morphological differences between ruptured and unruptured aneurysms under these high-risk meteorological conditions were assessed.

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Article Synopsis
  • The study created a nomogram to predict overall survival (OS) for patients with low-grade glioma (LGG) using data from 3732 patients monitored from 1973 to 2013.
  • Seven clinical variables were identified as significant for predicting 5- and 9-year OS rates, and the nomogram showed high accuracy in both internal and external validation, with C-index values around 0.777 to 0.776.
  • This nomogram can aid healthcare providers in assessing risks and making treatment decisions for LGG patients based on their clinical characteristics.
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Background: Macrolides have anti-inflammatory and antioxidative stress function, but their pharmacological regulation remains unclear. Sirtuin 1 (SIRT1) is redox-sensitive protein belongs to class III histone/protein deacetylases, SIRT1 regulates the acetylation/expression of nuclear factor κB (NF-κB) and is involved in the airway inflammation of chronic obstructive pulmonary disease.

Objectives: The present study was designed to examine the effects of erythromycin (EM) on the SIRT1-NF-κB axis and NF-κB-dependent proinflammatory cytokines.

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Article Synopsis
  • Endothelial cell dysfunction plays a key role in the development of intracranial aneurysms (IAs), but the specific response of these cells to blood flow changes is not well understood.
  • Experimental models using rabbits and rats showed that destructive remodeling and the development of IAs occurred at specific points in arterial bifurcations, with notable changes in cellular markers associated with endothelial cells.
  • The study suggests that the injury to the endothelial layer caused by varying blood flow conditions contributes to the localized formation of IAs at artery bifurcations.
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  • The study investigates the role of hemodynamic conditions in the development of intracranial aneurysms (IA) and how they affect endothelial cell (EC) functions.
  • A modified T chamber system simulates artery bifurcation, showing that increased flow rates lead to reduced expression of key proteins in normal and P120 catenin (P120ctn) knockdown human umbilical vein ECs, suggesting altered cell adhesion and morphology.
  • The research indicates that loss of P120ctn, influenced by hemodynamic changes, could weaken adherens junctions between ECs, potentially leading to inflammation and contributing to the formation of IA.
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Background: Understanding the risk factors for the formation of de novo intracranial aneurysms (IAs) is important for patients who have ever suffered a cerebral aneurysm.

Objective: To estimate the risk factors for the development of a de novo IA to identify which patients need more aggressive surveillance after aneurysm treatment.

Methods: We followed the preferred reporting items for systematic reviews and meta-analyses guidelines and searched the PubMed, CENTRAL, EMBASE, and LILACS databases using the key words cerebral aneurysms, de novo, IAs, risk factors combined using and/or.

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