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

Introduction: Functional disorders are prevalent in all medical fields and pose a tremendous public health problem, with pain being one of the most common functional symptoms. Understanding the underlying, potentially unifying mechanism in functional (pain) disorders is instrumental in facilitating timely diagnosis, stigma reduction, and adequate treatment options. Neuroscientific models of perception suggest that functional symptoms arise due to dysregulated sensorimotor processing in the central nervous system, with brain-based predictions dominating the eventual percept.

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Purpose: To investigate the impact of transmembrane protein CMTM6 on the pathogenesis of dry eye disease (DED) and elucidate its potential mechanisms.

Methods: CMTM6 expression was confirmed by database analysis, real-time polymerase chain reaction (RT-PCR), western blot, and immunohistochemistry. Tear secretion was measured using the phenol red thread test.

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Robot learning based on implicitly extracted error detections (e.g., EEG-based error detections) has been well-investigated in human-robot interaction (HRI).

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Article Synopsis
  • The study aimed to evaluate the effectiveness of the video Head Impulse Test (vHIT) in diagnosing vestibular strokes in patients presenting with acute vestibular syndrome in the emergency department.
  • Out of 76 patients tested, 24 were confirmed to have vestibular strokes, with the vHIT showing an accuracy of 86.8% based on vestibulo-ocular reflex gain compared to lower accuracy from saccade metrics.
  • While the vestibulo-ocular reflex gain proved to be the most accurate, saccade metrics still offered valuable diagnostic insights, though automated detection methods need improvement to match expert analysis.
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Objective: This study aims to investigate the associations of axial length to corneal radius of curvature (AL/CRC) ratio with refractive error and to determine the effect of AL/CRC ratio on hyperopia reserve and myopia assessment among Chinese preschoolers.

Methods: This was a retrospective cross-sectional study that evaluated subjects aged 4-6 years. AL and CRC were obtained using a non-contact ocular biometer.

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Discovery of adjuvants with antibacterial potentiation activity against carbapenemase-producing Enterobacterales based on in silico virtual screening.

Int J Antimicrob Agents

February 2024

Institute of Medical Technology, Peking University Health Science Center, Beijing, China; Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China. Electronic address:

Bacterial multi-drug resistance has become a concern worldwide, especially after the emergence of carbapenemases. Adjuvants with antibacterial potentiation activity can resensitise drug-resistant strains to carbapenems. However, only a few adjuvants with antibacterial potentiation activity are currently available in clinical practice.

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The diagnostic, therapeutic, and ethical impact of artificial intelligence in modern medicine.

Postgrad Med J

April 2024

Department of Paraclinical Sciences, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad and Tobago.

In the evolution of modern medicine, artificial intelligence (AI) has been proven to provide an integral aspect of revolutionizing clinical diagnosis, drug discovery, and patient care. With the potential to scrutinize colossal amounts of medical data, radiological and histological images, and genomic data in healthcare institutions, AI-powered systems can recognize, determine, and associate patterns and provide impactful insights that would be strenuous and challenging for clinicians to detect during their daily clinical practice. The outcome of AI-mediated search offers more accurate, personalized patient diagnoses, guides in research for new drug therapies, and provides a more effective multidisciplinary treatment plan that can be implemented for patients with chronic diseases.

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Advances in Material-Based Strategies for Diabetic Bone Regeneration.

Stem Cells Transl Med

March 2024

Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China.

Increased bone fragility and poor bone healing are common and serious complications of diabetes, especially in elderly patients. Long-term hyperglycemia often leads to serious infection and nonunion. Diabetes brings changes to bone microenvironment, including imbalanced immunity, disorder of macrophage polarization, deterioration of microvascular system, excessive advanced glycation end products, reactive oxygen species (ROS), local high levels of glucose, and great tendency to infection.

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Air pollution and the risk of incident chronic kidney disease in patients with diabetes: An exposure-response analysis.

Ecotoxicol Environ Saf

January 2024

National Institute of Health Data Science at Peking University, Peking University Health Science Center, Beijing 100191, China; Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing 100191, China; Renal Division, Department of Medicine, Peking University First Hospital, Peking University Institute of Nephrology, Beijing 100034, China; Research Units of Diagnosis and Treatment of Immune-Mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing 100034, China; Advanced Institute of Information Technology, Peking University, Hangzhou 311215, China. Electronic address:

Impact of air pollution on incident chronic kidney disease (CKD) in diabetic patients is insufficiently studied. We aimed to examine exposure-response associations of PM, PM, PM, NO, and NO with incident CKD in diabetic patients in the UK. We also widened exposure level of PM and examined PM-CKD association in diabetic patients across the entire range of global concentration.

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Background: In spite of the global decreasing mortality associated with HIV, adolescents living with HIV (ADLHIV) in sub-Saharan Africa still experience about 50% mortality rate. We sought to evaluate survival rates and determinants of mortality amongst ADLHIV receiving antiretroviral therapy (ART) in urban and rural settings.

Methods: A multi-centered, 10-year retrospective, cohort-study including ADLHIV on ART ≥ 6 months in the urban and rural settings of the Centre Region of Cameroon.

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Objective: The presence and intensity of symptoms vary in patients with unilateral vestibular hypofunction. We aimed to determine which saccadic and vestibulo-ocular reflex parameters best predict the presence of symptoms in unilateral vestibular hypofunction in order to better understand vestibular compensation and its implications for rehabilitation therapy.

Methods: Video head impulse test data were analyzed from a subpopulation of 23 symptomatic and 10 currently symptom-free participants with unilateral vestibular hypofunction, embedded in the KORA (Cooperative Health Research in the Region of Augsburg) FF4 study, the second follow-up of the KORA S4 population-based health survey (2,279 participants).

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Estimating birthweight reduction attributable to maternal ozone exposure in low- and middle-income countries.

Sci Adv

December 2023

Institute of Reproductive and Child Health, National Health Commission Key Laboratory of Reproductive Health and Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Epidemiology of Major Diseases (PKU), School of Public Health, Peking University Health Science Center, Beijing, China.

Article Synopsis
  • A multicenter study examined the impact of peak-season ozone (O) exposure on birthweight in low- and middle-income countries (LMICs), analyzing data from 697,148 newborns between 2003 and 2019.
  • The study found that for every 10-part per billion increase in O concentration, birthweight decreased by an average of 19.9 grams, with no identified safe exposure level.
  • The average birthweight reduction from O exposure was 43.8 grams across 123 LMICs in 2019, with the most significant effects seen in South Asia, the Middle East, and North Africa, highlighting the need for effective pollution control policies to enhance infant health.*
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Background: Head and neck squamous cell carcinoma (HNSCC) is a highly heterogeneous and aggressive malignancy with a poor prognosis. Pyroptosis triggered by gasdermins family proteins is reported vital for tumor microenvironment and cancer progression. However, pyroptosis-related gene expression and its relationship with immune infiltration and prognosis of HNSCC have not been fully defined.

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Cardiovascular disease (CVDs) has become one of the leading causes of death, posing a significant threat to human life. The development of reliable Artificial Intelligence (AI) assisted diagnosis algorithms for cardiac sounds is of great significance for early detection and treatment of CVDs. However, there is scarce research in this field.

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Objective: We developed an intelligent assistance system for shoulder ultrasound imaging, incorporating deep-learning algorithms to facilitate standard plane recognition and automatic tissue segmentation of the rotator cuff and its surrounding structures. We evaluated the system's performance using a dedicated data set of rotator cuff ultrasound images to assess its feasibility in clinical practice.

Methods: To fulfill the system's primary functions, we designed a standard plane recognition module based on the ResNet50 network and an automatic tissue segmentation module using the Mask R-CNN model.

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Neural mechanisms of sequential dependence in time perception: the impact of prior task and memory processing.

Cereb Cortex

January 2024

General and Experimental Psychology, Department of Psychology, Ludwig-Maximilians-Universität München, Leopoldstraße 13, 80802, Munich, Germany.

Our perception and decision-making are susceptible to prior context. Such sequential dependence has been extensively studied in the visual domain, but less is known about its impact on time perception. Moreover, there are ongoing debates about whether these sequential biases occur at the perceptual stage or during subsequent post-perceptual processing.

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Colistin is used as a last resort for the management of infections caused by multi-drug resistant (MDR) bacteria. However, the use of this antibiotic could lead to different side effects, such as nephrotoxicity, in most patients, and the high prevalence of colistin-resistant strains restricts the use of colistin in the clinical setting. Additionally, colistin could induce resistance through the increased formation of biofilm; biofilm-embedded cells are highly resistant to antibiotics, and as with other antibiotics, colistin is impaired by bacteria in the biofilm community.

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Recombinant human growth hormone (rhGH) is clinically used to treat growth hormone deficiency (GHD). However, daily administration of rhGH is required due to its poor stability and short blood circulation, which causes pains and burdens as well as inconvenience to patients. In this study, a method for genetically fusing rhGH to a thermosensitive polymer of elastin-like polypeptide (ELP) is reported, using which the rhGH-ELP thermosensitive fusion protein can be purified by the thermosensitivity of ELP instead of chromatography.

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Aim: To study microRNAs (miRNAs) and their potential effects in high glucose-induced human retinal pigment epithelial cell damage.

Methods: We screened the GSE52233 miRNA expression dataset for differentially expressed miRNAs (DEMs). The target genes of the top 10 DEMs were predicted using miRWalk 2.

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Implementing integrated care guidelines in asthma and COPD: It ain't easy!

Heliyon

November 2023

Department of Pulmonary Disease, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands.

Article Synopsis
  • The study aimed to evaluate a personalized diagnostic pathway for patients with Chronic Obstructive Pulmonary Disease (COPD) or Asthma in a real-world outpatient setting.
  • The results revealed that only 35% of patients attended all scheduled appointments after the pathway's implementation, with factors like logistical complexity and low socioeconomic status contributing to dropouts.
  • Despite the challenges, the study showed a significant increase in the creation of personalized care plans and diagnostic documentation, indicating that holistic care planning can be effectively implemented, but improvements are needed to increase patient participation.
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Multifunctional phototheranostics, employing precise and non-invasive techniques, is widely developed to enhance theranostic efficiency of breast cancer (BC), reduce side-effects, and improve quality of life. Integrating all phototheranostic modalities into a single photosensitizer for highly effective BC treatment is particularly challenging due to the potential inefficiency and time consumption associated with repeated switching of multiple-wavelength lasers. Herein, a novel single NIR-II laser-triggered three-in-one nanosystem(PdCu NY) is rationally designed, which enables dual-modal (NIR-II FL/NIR-II PA) imaging-guided self-enhancing photothermal-photodynamic therapy (PTT-PDT) in NIR-II window.

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Analysis of virulence genes (PhlA, ShlA, FlhD) sequencing of Serratia marcescens including collection of two hundred twenty samples from sputum & wound infection of the period from April-June in 2021 of the patients in some hospitals in Baghdad - Iraq. These specimens were collected from central hospitals in Iraq. After laboratory diagnosis of these specimens by detecting morphological and biochemical tests on bacteria that were cultured on selective and enriched media, VITEK- 2 compact system.

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Fish oil has been known for its antioxidant, cardioprotective, anti-inflammatory, and neuroprotective characteristics due to the presence of polyunsaturated fatty acids (PUFAs) that are essential for optimal brain function and mental health. The present study investigated the effect of Carcharhinus Bleekeri (Shark Fish) oil on learning and memory functions in scopolamine-induced amnesia in rats. Locomotor and memory-enhancing activity in scopolamine-induced amnesic rats was investigated by assessing the open field and passive avoidance paradigm.

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Brachytherapy of superficial skin tumors using beta-emitting sources is a method that has been investigated by some researchers in both simulation and experimental studies with promising results. In the current study, the effect of geometrical parameters of some relevant radionuclides including Y-90, Re-188, P-32, and Ho-166 on the depth dose distribution in skin tissue has been investigated through Monte Carlo simulation. MCNPX Monte Carlo code was employed to model the above-mentioned patch sources in cylindrical format and then the effect of patch geometrical parameters including the source-to-skin distance (SSD), patch thickness, and patch diameter on depth dose distribution was assessed through modeling and calculation of the dose inside a cubic phantom mimicking the skin tissue.

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