70,647 results match your criteria: "Capital Medical University[Affiliation]"

Objective: This prospective clinical study examined the effects of fixed orthodontic appliances on oral hygiene and assessed changes in the oral microflora structure of orthodontic patients using high-throughput sequencing technology.

Methods: A total of 45 patients undergoing initial fixed orthodontic treatment were recruited from three hospitals in Beijing, China. Clinical parameters and oral hygiene habits questionnaire were recorded at pre-treatment (T0) and at a 6-month follow-up (T1).

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Objective: Failure to understand long-term quality of life and functional outcomes hinders effective decision making and prognostication. Therefore, the study aims to predict and analyse the unfavorable outcomes (FOs) in elderly patients undergoing lumbar fusion surgery.

Methods: Consecutive 382 patients who underwent lumbar fusion surgery for lumbar degenerative disease from March 2019 to July 2022 were enrolled in this study.

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SYNTAX I score is associated with genetically confirmed familial hypercholesterolemia in chinese patients with coronary heart disease.

BMC Cardiovasc Disord

December 2024

Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China.

Background: Familial hypercholesterolemia (FH) is a genetically inherited disorder caused by monogenic mutations or polygenic deleterious variants. Patients with FH innate with significantly elevated risks for coronary heart disease (CHD). FH prevalence based on genetic testing in Chinese CHD patients is missing.

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Pancreatic cancer (PC) is one of the most malignant solid cancers, and PC metastasis, particularly liver metastasis, is a major cause of cancer mortality. A key event in tumor metastasis is the formation of pre-metastatic niche (PMN), which provides a microenvironment conducive to tumor cells colonization and progression. Various molecules loaded in tumor-derived exosomes (TDEs) contribute to PMN formation and distant tumor metastasis, by regulating immune and stromal cell function, inducing angiogenesis, and promoting metabolic reprogramming.

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Deep learning radiomics nomograms predict Isocitrate dehydrogenase (IDH) genotypes in brain glioma: A multicenter study.

Magn Reson Imaging

December 2024

Department of Nuclear Magnetic Resonance, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; Gansu Province Clinical Research Center for Functional and Molecular Imaging, Lanzhou 730030, China. Electronic address:

Purpose: To explore the feasibility of Deep learning radiomics nomograms (DLRN) in predicting IDH genotype.

Methods: A total of 402 glioma patients from two independent centers were retrospectively included, and the data from center I was randomly divided into a training cohort (n = 239) and an internal validation cohort (n = 103) on a 7:3 basis. Center II served as an independent external validation cohort (n = 60).

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This study offers new insights into the dual role of secretory phospholipase A2 (sPLA2) in lymphedema, highlighting its impact on lymphatic endothelial cell (LEC) functionality. Through transcriptomic analyses and co-culture experiments, we observed that sPLA2 has both protective and detrimental effects on human LECs (HLECs), mediated by macrophage activation. Our findings reveal that while low levels of sPLA2 promote LEC health, excessive sPLA2 leads to dysfunction, emphasizing the significance of the sPLA2/PLA2R axis and arachidonic acid metabolism (AA) in lymphedema pathology.

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Neoadjuvant chemotherapy by liposomal doxorubicin boosts immune protection of tumor membrane antigens-based nanovaccine.

Cell Rep Med

December 2024

CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center of Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P.R. China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China. Electronic address:

Autologous tumor cell membrane antigen-based vaccines (TMVs) have garnered extensive attention as personalized immunotherapy. However, patients who take TMVs therapy usually undergo various treatments prior to surgery, and these processes modulate the immunogenicity of the tumor membrane and the tumor immune microenvironment. Herein, we investigate the impact of preoperative chemotherapy on the efficacy of TMVs.

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Renin-independent aldosteronism and metabolic dysfunction-associated steatotic liver disease and cirrhosis: A genetic association study.

Clin Nutr

December 2024

Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America; Department of Medicine, Boston VA Healthcare System, Boston, MA 02130, United States of America.

Background & Aims: Renin-independent aldosteronism (RIA) refers to a spectrum of autonomous aldosterone hypersecretion. We aimed to explore the genetical relationship between RIA and metabolic dysfunction-associated steatotic liver disease (MASLD) and cirrhosis.

Methods: We included 125357 participants from the cohort of United Kingdom Biobank.

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Efficient Photolysis of Multidrug-Resistant Polymicrobial Biofilms.

Adv Sci (Weinh)

December 2024

Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, 50 Blossom Street, Boston, MA, 02114, USA.

Chronic wounds are prone to infections with multidrug-resistant bacteria, forming polymicrobial biofilms that limit treatment options and increase the risk of severe complications. Current cleansing options are insufficient to disrupt and remove tenacious biofilms; antibiotic treatments, on the other hand, often fall short against these biofilm-embedded bacteria. This study explores an non-antibiotic approach that extends beyond conventional porphyrin-based phototherapy by using blue light (BL) in conjunction with ferric ions (Fe(III)) to disrupt and eradicate biofilms.

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The great variety of antimicrobial resistance (AMR) profiles among tuberculosis (TB) patients necessitates a comprehensive detection method. This study developed culture-independent, long amplicon-based targeted next-generation sequencing (tNGS) methods for predicting AMR across 16 drugs within the complex (MTBC). Multiplex PCR amplification was employed to enrich 20 gene regions, with sequencing performed on either the Oxford Nanopore Technologies (ONT) or Illumina platforms.

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Introduction: Investigation of bone marrow (BM) trephine biopsies and/or clot sections by CD34 immunohistochemistry (IHC) testing has been used by pathologists for several decades, and its clinical value has been well established with QBEND10 being the most frequently used primary antibody (Ab) clone. However, most other parameters related to the IHC protocol as well as the readout vary widely between clinical laboratories and in the published literature. The ICSH Working Group having reviewed the published evidence has established guidelines that will help to harmonize performance and reporting of CD34 IHC on BM biopsies.

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Cinematic Rendering of Twig-Like Middle Cerebral Artery.

Ann Neurol

December 2024

Department of Interventional Neuroradiology and Neurosurgery, Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.

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Unveiling the Potential of Tetrahedral DNA Frameworks in Clinical Medicine: Mechanisms, Advances, and Future Perspectives.

Small

December 2024

State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.

As deoxyribonucleic acis (DNA) nanotechnology advances, DNA, a fundamental biological macromolecule, has been employed to treat various clinical diseases. Among the advancements in this field, tetrahedral frameworks nucleic acids (tFNAs) have gained significant attention due to their straightforward design, structural simplicity, low cost, and high yield since their introduction by Turberfield in the early 2000s. Due to its stable spatial structure, tFNAs can resist the impact of innate immune responses on DNA and nuclease activity.

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Subthalamic γ Oscillation Underlying Rapid Eye Movement Sleep Abnormality in Parkinsonian Patients.

Mov Disord

December 2024

National Engineering Research Center of Neuromodulation, School of Aerospace Engineering, Tsinghua University, Beijing, China.

Background: Abnormal rapid eye movement (REM) sleep, including REM sleep behavior disorder (RBD) and reduced REM sleep, is common in Parkinson's disease (PD), highlighting the importance of further study on REM sleep. However, the biomarkers of REM disturbances remain unknown, leading to the lack of REM-specific neuromodulation interventions.

Objective: This study aims to investigate the neurophysiological biomarkers of REM disturbance in parkinsonian patients.

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Masticatory Stress Maintains Mucosal Homeostasis via M2 Polarization.

J Dent Res

December 2024

Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, China.

In addition to breaking down food, mastication plays regulatory roles in tissue homeostasis. During mastication, the oral mucosa is subjected to masticatory stress, and the maintenance between mucosal damage and repair is a key process. Despite rapid healing in the oral mucosa during chewing, the molecular mechanisms underlying repair remain unclear.

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Causal association between metabolites and age-related macular degeneration: a bidirectional two-sample mendelian randomization study.

Hereditas

December 2024

Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, No. 1, Dongjiaomin Lane, Dongcheng District, Beijing, 100730, China.

Background: Age-related macular degeneration (AMD) is the leading cause of visual impairment in the elderly population. Accumulating evidence has revealed the possible association between metabolites and AMD. This study aimed to assess the effect of plasma metabolites on AMD and its two subtypes using a bidirectional two-sample Mendelian randomization approach.

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Clinical and functional characterization of p.Lys322stop variant in the SERPINC1 gene causing severe thrombophilia.

Orphanet J Rare Dis

December 2024

Thrombosis Research Center, Beijing Jishuitan Hospital, Capital Medical University, Xicheng District, Beijing, 100035, China.

Background: Identification of mutations in the SERPINC1 has illuminated the intricate pathways underlying antithrombin (AT) deficiency. Our group identified a variation in the SERPINC1 gene (c.964 A > T, p.

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Background: We determined utilizing a sepsis participant cohort whether there is a significant association between TyG-BMI (triglyceride glucose body mass index) and mortality rates at any stage.

Methods: Herein, a historical cohort investigation approach was adopted, using information provided by the Medical Information Mart for Intensive Care-IV (MIMIC-IV). We categorized the included individuals in accordance with their TyG-BMI data quartiles, and the primary outcomes were mortality during the hospital stay and death rate due to any reason at postadmission day 28, 90, and 365.

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Single-cell analysis reveals the loss of FABP4-positive proliferating valvular endothelial cells relates to functional mitral regurgitation.

BMC Med

December 2024

Present Address: State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 167A Beilishi Road, Beijing, Xi Cheng District, 100037, China.

Background: Functional mitral regurgitation (MR) is a common form of mitral valve dysfunction that often persists even after surgical intervention, requiring reoperation in some cases. To advance our understanding of the pathogenesis of functional MR, it is crucial to characterize the cellular composition of the mitral valve leaflet and identify molecular changes in each cell subtype within the mitral valves of MR patients. Therefore, we aimed to comprehensively examine the cellular and molecular components of mitral valves in patients with MR.

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Acceptance of advance care planning and influencing factors from the perspective of the life cycle: a cross-sectional study.

BMC Palliat Care

December 2024

School of Humanities and Social Science, Harbin Medical University, No.157 Baojian Road, Nangang District, Harbin, Heilongjiang Province, 150081, China.

Background: Advance care planning is an important part of palliative care. Public acceptance is a prerequisite for the widespread development and implementation of advance care planning. However, little is known about the level of public's acceptance and influencing factors of advance care planning across different life cycles.

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Objective: To identify therapeutic protein targets for bladder cancer (BCa) using Mendelian randomization (MR) and assess potential adverse effects of these targets.

Methods: A proteome-wide MR study was conducted to determine causal relationships between plasma proteins and BCa risk. In the discovery stage, the plasma proteins (Exposure) were sourced from the R10 of Finnish database, Olink (619 samples across 2925 proteins) and SomaScan (828 samples across 7596 proteins), and Iceland database.

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Role of copy number variation analysis in prenatally diagnosed Blake's pouch cyst.

BMC Pregnancy Childbirth

December 2024

Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Maternal and Child Health Care Hospital, Beijing, 100026, China.

Background: Blake's pouch cyst (BPC) is a midline cystic anomaly of the posterior fossa. BPC has been shown to have a risk of aneuploidy prenatally. Copy number variation (CNV) and/or genetic syndromes have been reported in a few prenatal/postnatal cases with BPC.

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Background: Understanding the molecular mechanisms in immunosuppressive regulation is crucial for improving immunotherapeutic strategies. Macrophages, the major immune cells in tumor microenvironment (TME), play a dual role in tumor progression. CD180, primarily expressed in macrophages, remains unclear and requires further investigation.

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Background: Secondary hyperparathyroidism (SHPT) is a condition that may occur after bariatric surgery. This study aimed to evaluate clinical factors that could predict SHPT after bariatric surgery and to construct a nomogram.

Methods: Data for 294 patients were retrieved and divided into training and validation cohorts (206 and 88 patients, respectively).

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