1,379 results match your criteria: "Institute of Medical Technology[Affiliation]"

Low levels of triiodothyronine (T3) in the brain lead to increased dopamine receptor sensitivity, potentially resulting in schizophrenia. Iodothyronine deiodinase 2 (DIO2) is the only enzyme which converts tetraiodothyronine (T4) to T3 in the brain. polymorphism of rs225014 results in the expression of non-functioning DIO2.

View Article and Find Full Text PDF

With the increasing maturity and popularization of digital technology in oral medicine, its application has now expanded to various clinical subspecialties of oral medicine. Digitalization has become one of the important development directions of oral medicine. What is the current development status of digital technology in oral medicine? In what ways is digital technology applied across various clinical specialties of oral medicine? Dentists are particularly concerned about these issues in their clinical work and research.

View Article and Find Full Text PDF

AAV-delivered muscone-induced transgene system for treating chronic diseases in mice via inhalation.

Nat Commun

February 2024

Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Dongchuan Road 500, Shanghai, 200241, China.

Article Synopsis
  • - Gene therapies can treat various diseases, but controlling how long and safely they express therapeutic genes is a big challenge, especially in clinical settings.
  • - Researchers created a system using muscone to activate a specific receptor in adeno-associated virus vectors, allowing precise control of gene expression in mice's livers and lungs for over 20 weeks.
  • - This innovative approach was effective in treating chronic diseases like nonalcoholic fatty liver disease and allergic asthma, highlighting its potential in advancing targeted gene therapies.
View Article and Find Full Text PDF

Objective: To develop an efficient and robust method based on three dimensional facial landmarks for evaluating chin region asymmetry at the soft tissue level and to compare it with the traditional mirror-overlap analysis method in order to test its availability.

Methods: Standard symmetrical face was used for mental tubercle coordinate transformation so as to filter soft tissue three dimensional spatial angle and construct corresponding three dimensional spatial angle wireframe template. Ten patients aged 12-32 years with clinical chin region asymmetry diagnosis at the Department of Orthodontics of Peking University Hospital of Stomatology from November 2020 to November 2021 were randomly selected.

View Article and Find Full Text PDF

Thymus is the main immune organ which is responsible for the production of self-tolerant and functional T cells, but it shrinks rapidly with age after birth. Although studies have researched thymus development and involution in mouse, the critical regulators that arise with age in human thymus remain unclear. We collected public human single-cell transcriptomic sequencing (scRNA-seq) datasets containing 350,678 cells from 36 samples, integrated them as a cell atlas of human thymus.

View Article and Find Full Text PDF

Single-cell transcriptome analyses reveal critical regulators of spermatogonial stem cell fate transitions.

BMC Genomics

February 2024

Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Qinghai, 810008, China.

Article Synopsis
  • Spermatogonial stem cells (SSCs) are essential for the continuous production of sperm and maintaining the germline in mammals, but their molecular identities and development have not been clearly defined.
  • Researchers analyzed single-cell transcriptomes from undifferentiated spermatogonia in mice to uncover specific candidate transcription factors and the developmental pathways affecting SSCs and their progenitors.
  • Their findings revealed a particular subtype called Eomes, which shows a quiescent state, plays a significant role in SSC regeneration, has multiple cellular subsets, and is linked to key metabolic pathways essential for regeneration.
View Article and Find Full Text PDF

Promoting complete periodontal regeneration of damaged periodontal tissues, including dental cementum, periodontal ligament, and alveolar bone, is one of the challenges in the treatment of periodontitis. Therefore, it is urgent to explore new treatment strategies for periodontitis. Exosomes generated from stem cells are now a promising alternative to stem cell therapy, with therapeutic results comparable to those of their blast cells.

View Article and Find Full Text PDF

Background: Whole-genome sequencing (WGS) has contributed significantly to advancements in machine learning methods for predicting antimicrobial resistance (AMR). However, the comparisons of different methods for AMR prediction without requiring prior knowledge of resistance remains to be conducted.

Methods: We aimed to predict the minimum inhibitory concentrations (MICs) of 13 antimicrobial agents against using three machine learning algorithms (random forest, support vector machine, and XGBoost) combined with k-mer features extracted from WGS data.

View Article and Find Full Text PDF

Aim: The rising prevalence of periodontitis imposes substantial burdens on individuals and society. Identifying environmental risk factors for periodontitis may contribute to tackling the global public health burden of it. This study aimed to assess the association between long-term exposure to PM and periodontitis in a nationally representative population from China.

View Article and Find Full Text PDF

Purpose: The aim of this study is to investigate the technique and practical significance of using a simple hernia needle in single-port laparoscopic herniorrhaphy in pediatric patients.

Methods: The study conducted a retrospective analysis of all pediatric patients who underwent treatment for inguinal hernia using single-port laparoscopic herniorrhaphy with a simple hernia needle at Yellow River Sanmenxia Hospital from June 2018 to May 2023. The medical records of all the children were collected, and clinical characteristics, procedural information, and follow-up data were carefully reviewed.

View Article and Find Full Text PDF

Deciphering the molecular symphony: Unraveling endothelial-to-mesenchymal transition in corneal endothelial cells.

Exp Eye Res

March 2024

Institute of Medical Technology, Peking University Health Science Center, Beijing, China; Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, China. Electronic address:

Understanding the molecular complexity of this phenomenon provides innovative targets for maintaining phenotypic integrity during in vitro expansion, thereby advancing corneal endothelial tissue engineering. In this study, we established an in vitro model to simulate endothelial-to-mesenchymal transition (EndMT) in corneal endothelial cells. Through RNA sequencing, we identified 452 upregulated and 163 downregulated genes, resulting in a total of 615 differentially expressed genes.

View Article and Find Full Text PDF

Background: The management of post-refractive surgery dry eye disease (DED) can be challenging in clinical practice, and patients usually show an incomplete response to traditional artificial tears, especially when it is complicated with ocular pain. Therefore, we aim to investigate the efficacy of combined topical 0.05% cyclosporine A and 0.

View Article and Find Full Text PDF

The Circle of Willis (CoW) is an important network of arteries connecting major circulations of the brain. Its vascular architecture is believed to affect the risk, severity, and clinical outcome of serious neuro-vascular diseases. However, characterizing the highly variable CoW anatomy is still a manual and time-consuming expert task.

View Article and Find Full Text PDF

Background: Previous research suggests that an ageing-associated remodelling and loss of motor units due to motor neuron death contributes significantly to muscle weakness in old age. In histological sections, motor unit remodelling is reflected by increased fibre type grouping. While regular exercise may not attenuate the loss of motor units during ageing, it has been suggested to facilitate reinnervation resulting in larger motor units, and a higher number and larger fibre type groups in histological sections of muscles from aged individuals.

View Article and Find Full Text PDF

Background: Alterations of the trimethylation of histone 3 lysine 4 (H3K4me3) mark in monocytes are implicated in the development of autoimmune diseases. Therefore, the purpose of our study was to elucidate the role of H3K4me3-mediated epigenetics in the pathogenesis of antiphospholipid syndrome (APS).

Methods: H3K4me3 Cleavage Under Targets and Tagmentation and Assay for Transposase-Accessible Chromatin were performed to determine the epigenetic profiles.

View Article and Find Full Text PDF
Article Synopsis
  • The study addresses the health risks associated with the imaging dose of cone-beam computed tomography (CBCT) in image-guided radiotherapy (IGRT) and introduces a projection synthesis convolutional neural network (SynCNN) model to enhance the quality of low-dose CBCT images.
  • It involved 223 brain tumor patients from Beijing Cancer Hospital, where the SynCNN model was trained on data from 150 patients and validated on an additional 30, using various sampling rates to simulate sparse-view datasets.
  • Results demonstrated that the SynCNN model effectively synthesized missing projections, significantly improving image quality compared to traditional sparse-view reconstructions, as evaluated by expert grading and various image quality metrics.
View Article and Find Full Text PDF

The Trusted Exchange Framework and Common Agreement (TEFCA) is a framework consisting of seven principles designed to create a secure and seamless health information exchange system across various healthcare settings. The ultimate goal of TEFCA is to facilitate public health surveillance, increase interoperability, promote data sharing, and ensure patient-centered healthcare data management. While the implementation of these principles is challenging, blockchain technology, with its unique features such as transparency, auditability, immutability, and anonymity, can provide a promising solution to the development of TEFCA.

View Article and Find Full Text PDF

Stimuli-responsive nanomedicines represent a pivotal technology for in situ on-demand drug release and offer multiple advantages over conventional drug delivery systems to combat rheumatoid arthritis(RA). However, the lack of sensitivity to a single-stimuli source or the inability to synchronize multi-stimuli responses can easily lead to challenges in achieving precise-theranostics of RA. Herein, a homology-activated ultrasensitive nanomedicines MnO-CQ4T-GOx(MCG NMs) is designed for NIR-II fluorescence(NIR-II FL)/magnetic resonance imaging(MRI)-guided effective "knock-on" dynamic anti-RA therapy.

View Article and Find Full Text PDF

Phototherapy for age-related brain diseases: Challenges, successes and future.

Ageing Res Rev

February 2024

Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Institute of Aging, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Zhejiang Provincial Clinical Research Center for Mental Disorders, The Affiliated Wenzhou Kangning Hospital, School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang 325035, PR China. Electronic address:

Brain diseases present a significant obstacle to both global health and economic progress, owing to their elusive pathogenesis and the limited effectiveness of pharmaceutical interventions. Phototherapy has emerged as a promising non-invasive therapeutic modality for addressing age-related brain disorders, including stroke, Alzheimer's disease (AD), and Parkinson's disease (PD), among others. This review examines the recent progressions in phototherapeutic interventions.

View Article and Find Full Text PDF

Analysis of Clinical Characteristics and Neuropeptides in Patients with Dry Eye with and without Chronic Ocular Pain after FS-LASIK.

Ophthalmol Ther

March 2024

Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Department of Ophthalmology, Peking University Third Hospital, Peking University Health Science Center, Institute of Medical Technology, 49 North Garden Road, Haidian District, Beijing, 100191, China.

Introduction: Chronic ocular pain, particularly prevalent in patients with dry eye disease and post-femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) surgery, presents with unclear clinical characteristics and an undefined pathogenesis. In this study, we aimed to compare clinical characteristics and tear neuropeptide concentrations in patients with dry eye disease (DED) with and without chronic ocular pain following FS-LASIK, and investigate correlations between ocular pain, clinical characteristics, and tear neuropeptide levels.

Methods: Thirty-eight post-FS-LASIK patients with DED were assigned to two groups: those with chronic ocular pain and those without chronic ocular pain.

View Article and Find Full Text PDF

Randomized controlled trials are essential for evaluating clinical interventions; however, selective reporting and publication bias in medical journals have undermined the integrity of the clinical evidence system. ClinicalTrials.gov serves as a valuable and complementary repository, yet synthesizing information from it remains challenging.

View Article and Find Full Text PDF

Dynamic within-host cefiderocol heteroresistance caused by bla amplification in pandrug-resistant and hypervirulent Klebsiella pneumoniae sequence type 11.

Drug Resist Updat

March 2024

Department of Infectious Disease, Peking University Third Hospital, Beijing, China; Center of Infectious Disease, Peking University Third Hospital, Beijing, China; Institute of Medical Technology, Peking University Health Science Center, Beijing, China; Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China. Electronic address:

Aims: Although cefiderocol (FDC) is not prescribed in China, FDC-resistant pandrug-resistant hypervirulent Klebsiella pneumoniae (PDR-hvKp) is emerging. In this study, we performed FDC susceptibility testing of clinical Kp isolates to explore the prevalence of FDC-resistant isolates and the mechanism of FDC-resistance.

Methods: We retrospectively selected 151 carbapenem-resistant Kp isolates to assess FDC susceptibility.

View Article and Find Full Text PDF

Feasibility study on the clinical application of CT-based synthetic brain T1-weighted MRI: comparison with conventional T1-weighted MRI.

Eur Radiol

September 2024

Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China.

Objectives: This study aimed to examine the equivalence of computed tomography (CT)-based synthetic T1-weighted imaging (T1WI) to conventional T1WI for the quantitative assessment of brain morphology.

Materials And Methods: This prospective study examined 35 adult patients undergoing brain magnetic resonance imaging (MRI) and CT scans. An image synthesis method based on a deep learning model was used to generate synthetic T1WI (sT1WI) from CT data.

View Article and Find Full Text PDF
Article Synopsis
  • - The increase of carbapenem-resistant Klebsiella pneumoniae (CRKP) infections poses a serious health risk, necessitating urgent solutions for antibiotic resistance treatment failures.
  • - Research explored the potential of glutathione (GSH) to enhance the effectiveness of the antibiotic meropenem against CRKP, revealing a synergistic effect that significantly reduced bacterial counts when both were used together.
  • - The study found that the combination of GSH and meropenem increased reactive oxygen species (ROS) levels and altered glycerophospholipid metabolism, leading to improved cell membrane permeability and ultimately reversing the resistance to meropenem in CRKP.
View Article and Find Full Text PDF