Robotic urologic surgery using the Toumai MT-1000 Endoscopic Surgical System: a single-center prospective analysis.

Background: The Toumai MT-1000 Endoscopic Surgical System is a newly developed surgical robot from China. This study evaluates its feasibility, safety, and effectiveness for various urologic procedures based on our single-center experience.

Methods: From October 2023 to January 2024, 20 urologic procedures were performed at Peking University First Hospital using the Toumai MT-1000 system.

A Preclinical Immunogenicity Study of the Recombinant Human Papillomavirus Nine-Valent Virus-like Particle Vaccine.

Background: Cervical cancer is associated with persistent infection of high-risk human papillomaviruses (HPVs). Prophylactic HPV vaccines have been recommended and have significant efficacy in preventing cervical cancer. Multivalent HPV vaccines have a better preventative effect on HPV-related diseases.

Deficiency of Endothelial Impairs Pulmonary Vascular Angiogenesis and Predisposes Pulmonary Hypertension.

Background: Mechanosensitive Piezo1 channel plays a key role in pulmonary hypertension (PH). However, the role of Piezo2 in PH remains unclear.

Methods: Endothelial cell (EC)-specific knockout (, Tek-Cre; ) rats and primarily cultured pulmonary microvascular ECs were used to determine the role of Piezo2 in PH.

BRISC-Mediated PPM1B-K63 Deubiquitination and Subsequent TGF-β Pathway Activation Promote High-Fat/High-Sucrose Diet-Induced Arterial Stiffness.

Background: Metabolic syndrome heightens cardiovascular disease risk primarily through increased arterial stiffness. We previously demonstrated the involvement of YAP (Yes-associated protein) in high-fat/high-sucrose diet (HFHSD)-induced arterial stiffness via modulation of PPM1B (protein phosphatase Mg/Mn-dependent 1B)-lysine63 (K63) deubiquitination. In this study, we aimed to elucidate the role and mechanisms underlying PPM1B deubiquitination in HFHSD-induced arterial stiffness.

Trivalent recombinant protein vaccine induces cross-neutralization against XBB lineage and JN.1 subvariants: preclinical and phase 1 clinical trials.

The immune escape capacities of XBB variants necessitate the authorization of vaccines with these antigens. In this study, we produce three recombinant trimeric proteins from the RBD sequences of Delta, BA.5, and XBB.

Longitudinal CT Radiomics to Predict Progression-free Survival in Patients with Locally Advanced Gastric Cancer After Neoadjuvant Chemotherapy.

Rationale And Objectives: To develop and validate a radiomics signature, utilizing baseline and restaging CT, for preoperatively predicting progression-free survival (PFS) after neoadjuvant chemotherapy (NAC) in locally advanced gastric cancer (LAGC).

Methods: A total of 316 patients with LAGC who received NAC followed by gastrectomy were retrospectively included in this single-center study; these patients were split into two cohorts, one for training (n = 243) and the other for validation (n = 73), based on the different districts of our hospital. A total of 1316 radiomics features were extracted from the volume of interest of the gastric-cancer lesion on venous phase CT images.

Deep Learning Model for the Differential Diagnosis of Nasal Polyps and Inverted Papilloma by CT Images: A Multicenter Study.

Rationale And Objectives: Nasal polyps (NP) and inverted papilloma (IP) are benign tumors within the nasal cavity, each necessitating distinct treatment approaches. Herein, we investigate the utility of a deep learning (DL) model for distinguishing between NP and IP.

Materials And Methods: A total of 1791 patients with nasal benign tumors from two hospitals were retrospectively enrolled.

Chemically defined and growth factor-free system for highly efficient endoderm induction of human pluripotent stem cells.

Definitive endoderm (DE) derived from human pluripotent stem cells (hPSCs) holds great promise for cell-based therapies and drug discovery. However, current DE differentiation methods required undefined components and/or expensive recombinant proteins, limiting their scalable manufacture and clinical use. Homogeneous DE differentiation in defined and recombinant protein-free conditions remains a major challenge.

Antibiotic Use and Subsequent Cognitive Decline and Dementia Risk in Healthy Older Adults.

Background And Objectives: Antibiotics rapidly reduce intestinal bacterial diversity, leading to dysbiosis that persists for months to years. Although emerging evidence from retrospective and claims-based studies has linked dysbiosis to cognitive function, prospective data are lacking. We aim to examine the prospective association of antibiotics with cognitive aging among initially healthy older adults.

Diagnostic Accuracy and Value of CXCR4-targeted PET/MRI Using Ga-Pentixafor for Tumor Localization in Cushing Disease.

Background Gallium 68 (Ga) pentixafor has emerged as a potential C-X-C chemokine receptor type 4 (CXCR4)-targeted radiotracer for neuroendocrine tumor, yet its application in Cushing disease remains uncertain. Purpose To assess the diagnostic accuracy and value of Ga-pentixafor PET/MRI in localizing adrenocorticotropic hormone (ACTH)-secreting pituitary tumors in Cushing disease. Materials and Methods A prospective single-center study was conducted from March 2023 to February 2024 in participants with Cushing disease scheduled for surgical pituitary tumor resection.

Analysis of Volatile Compounds' Changes in Rice Grain at Different Ripening Stages via HS-SPME-GC-MS.

Aroma is a crucial determinant of rice taste quality, with volatile organic compounds (VOCs) playing a key role in defining this characteristic. However, limited research has explored the dynamic changes in these aromatic substances during the ripening stages of rice grains. In this study, we analyzed VOCs in rice grains across four ripening stages post-flowering using headspace solid-phase microextraction combined with gas chromatography-mass spectrometry (HS-SPME-GC-MS).

Mapping fetal brain development of 10 weeks gestational age with 9.4T postmortem MRI and histological sections.

Background And Purpose: The 10th week of gestational age (GA) is a critical period for evaluating brain development, but there is limited knowledge regarding the specific characteristics at this GA. This study is to map the brain structures at 10 weeks GA using 9.4T MRI and histological sections.

Peli1 Deficiency in Macrophages Attenuates Pulmonary Hypertension by Enhancing Foxp1-Mediated Transcriptional Inhibition of IL-6.

Background: The infiltration of macrophages into the lungs is a common characteristic of perivascular inflammation, contributing to vascular remodeling in pulmonary hypertension (PH). Peli1 (pellino E3 ubiquitin-protein ligase 1) plays a critical role in regulating the production of proinflammatory cytokines and the polarization of macrophages in various diseases. However, the role of Peli1 in PH remains to be investigated.

Generation, Characterization, and Preclinical Studies of a Novel NKG2A-Targeted Antibody BRY805 for Cancer Immunotherapy.

Immuno-oncology has revolutionized cancer treatment, with NKG2A emerging as a novel target for immunotherapy. The blockade of NKG2A using the immune checkpoint inhibitor (ICI) monalizumab has been shown to enhance the responses of both NK cells and CD8+ T cells. However, monalizumab has demonstrated limited efficacy in in vitro cytotoxic assays and clinical trials.

Toward the Rational Design of an OsM Center for Methane Activation: Gas-Phase Result-Derived Neural Network Model.

Gas-phase reactions of [OsB] ( = 1-4) with methane at ambient temperature have been studied by using quadrupole-ion trap mass spectrometry combined with quantum chemical calculations. The [OsB] ( = 1-4) cluster ions can undergo dehydrogenation reactions with methane. Comprehensive analysis of the [OsB]/CH ( = 1-4) system with Os-complexes ([OsC] ( = 1-3) and [OsO] ( = 1-3)) shows that the large polarity of the cluster and the high sum of the pair energies between Os and the ligand in the ETS-NOCV combine to promote the ability of the cluster to activate methane.

Belimumab safety in adult and paediatric Chinese patients with systemic lupus erythematosus: A Phase 4, multicentre, observational study.

Objective: Although belimumab has been widely used in patients with systemic lupus erythematosus (SLE) globally, real-world safety data among Chinese patients are limited, particularly for children. This study assessed the safety and tolerability of belimumab in adult and paediatric patients with SLE in China in real-world clinical practice.

Methods: This Phase 4, multicentre, prospective, observational study enrolled patients prescribed intravenous belimumab by their physicians in tertiary hospitals, independent of a clinical study, during routine clinical visits between May 2021 and May 2022.

Trem2/Tyrobp Signaling Protects Against Aortic Dissection and Rupture by Inhibiting Macrophage Activation in Mice.

Background: The development of aortic dissection (AD) is closely associated with inflammation. The Trem2 (triggering receptor expressed on myeloid cells 2)/Tyrobp (TYRO protein tyrosine kinase-binding protein) signaling pathway critically regulates innate immunity and has emerged as an important target in cardiovascular diseases; however, its role in AD remains unclear.

Methods: Transcriptome data from human and mouse ADs were used to perform differentially expressed gene-based protein-protein interaction network analyses.

An Innovative, Cost-Effective, and Flexible Traction Alternative for Shoulder Arthroscopy in Lateral Decubitus Position.

During shoulder arthroscopic surgery in the lateral decubitus position, effective and stable continuous traction is a basic requirement for the smooth progression of the surgery. Herein, we describe a safe, reliable, and cost-effective lateral decubitus traction assembly.

Plasma Phenylacetylglutamine Levels and Prognosis of Ischemic Stroke: A Multicenter Prospective Study Based on the CATIS Trial.

Background: Phenylacetylglutamine is implicated in platelet clotting and thrombosis, but its prognostic value in ischemic stroke remains unclear. We aimed to explore the associations of plasma phenylacetylglutamine levels with adverse outcomes after ischemic stroke in a multicenter prognostic cohort study.

Methods: Our multicenter prognostic cohort study included 3564 Chinese patients with ischemic stroke from the CATIS (China Antihypertensive Trial in Acute Ischemic Stroke).

Image-Based Auto-Focus Microscope System with Visual Servo Control for Micro-Stereolithography.

Micro-stereolithography (μSL) is an advanced additive manufacturing technique that enables the fabrication of highly precise microstructures with fine feature resolution. One of the primary challenges in μSL is achieving and maintaining precise focus throughout the fabrication process. For the successful application of μSL, it is essential to maintain the sample surface within a focal depth of several microns.