Background: Previous trials have failed to demonstrate the benefits of extracranial-intracranial (EC-IC) bypass surgery for patients with carotid or middle cerebral artery occlusion. However, little evidence has focused on the effect of age on prognosis. This study aimed to explore whether EC-IC bypass surgery can provide greater benefits than medical therapy alone in specific age groups.
View Article and Find Full Text PDFThere is a new awareness of the widespread nature of metabolic dysfunction-associated steatotic liver disease (MASLD) and its connection to cardiovascular disease (CVD). This has catalyzed collaboration between cardiologists, hepatologists, endocrinologists, and the wider multidisciplinary team to address the need for earlier identification of those with MASLD who are at increased risk for CVD. The overlap in the pathophysiologic processes and parallel prevalence of CVD, metabolic syndrome, and MASLD highlight the multisystem consequences of poor cardiovascular-liver-metabolic health.
View Article and Find Full Text PDFRationale And Objectives: Comprehensive data on the use of ventilation-perfusion single-photo emission computed tomography/computed tomography (V/Q SPECT/CT), an established diagnostic tool for chronic thromboembolic pulmonary hypertension, in identifying pulmonary hypertension secondary to fibrinous mediastinitis (PH-FM) is scarce. This study aimed to assess its diagnostic efficacy for PH-FM.
Materials And Methods: Patients with PH due to pulmonary artery stenosis were assessed using V/Q SPECT/CT, computed tomography pulmonary angiography (CTPA), and digital subtraction pulmonary angiography (PAG).
Rationale And Objectives: The purpose of this study is to conduct a meta-analysis to evaluate the diagnostic performance of current radiomics models for diagnosing osteoporosis, as well as to assess the methodology and reporting quality of these radiomics studies.
Methods: According to PRISMA guidelines, four databases including MEDLINE, Web of Science, Embase and the Cochrane Library were searched systematically to select relevant studies published before July 18, 2024. The articles that used radiomics models for diagnosing osteoporosis were considered eligible.
Radiol Cardiothorac Imaging
December 2024
Purpose To compare the acquisition time, image quality, and late gadolinium enhancement (LGE) visualization and quantification on phase-sensitive inversion recovery (PSIR) images using 5.0-T versus 3.0-T cardiac MRI.
View Article and Find Full Text PDFFocal gene amplifications are among the most common cancer-associated mutations but have proven challenging to engineer in primary cells and model organisms. Here we describe a general strategy to engineer large (more than 1 Mbp) focal amplifications mediated by extrachromosomal DNAs (ecDNAs) in a spatiotemporally controlled manner in cells and in mice. By coupling ecDNA formation with expression of selectable markers, we track the dynamics of ecDNA-containing cells under physiological conditions and in the presence of specific selective pressures.
View Article and Find Full Text PDFBackground: Trilaciclib, an intravenous short acting cyclin-dependent kinase 4/6 inhibitor, has been approved for the prevention of chemotherapy-induced myelosuppression (CIM) in patients with extensive stage small cell lung cancer (ES-SCLC) receiving platinum/etoposide (EP) or topotecan (TPT)-based therapy in United States (US) since February 2021. Trilaciclib use received the priority review and approval in a real-world setting in China. This study thus aimed to collect real-world data and evaluate the protective effect of trilaciclib on CIM in Chinese patients with ES-SCLC.
View Article and Find Full Text PDFObjectives: To develop and externally validate a fully automated diagnostic convolutional neural network (CNN) model for cirrhosis based on liver MRI and serum biomarkers.
Methods: This multicenter retrospective study included consecutive patients receiving pathological evaluation of liver fibrosis stage and contrast-enhanced liver MRI between March 2010 and January 2024. On the training dataset, an MRI-based CNN model was constructed for cirrhosis against pathology, and then a combined model was developed integrating the CNN model and serum biomarkers.
Rationale And Objectives: The correlation between collateral circulation and futile recanalization (FR) is still controversial, and few studies have explored the influence of comprehensive cerebral collateral circulation on FR after endovascular stroke treatment. Therefore, based on cerebral collateral recycle (CCR) status, we aimed to establish an effective scoring system to identify the probability of FR.
Methods: This was a multicenter retrospective cohort study.
Background The prognostic value of coronary CT angiography (CTA)-derived quantitative flow ratio (CT-QFR) remains unknown. Purpose To determine the prognostic value of CT-QFR in predicting the long-term outcomes of patients with suspected coronary artery disease (CAD) in comparison with invasive coronary angiography (ICA)/SPECT and to determine the influence of prior percutaneous coronary intervention (PCI) on the prognostic value of CT-QFR. Materials and Methods In this secondary analysis of the prospective international CORE320 study, 379 participants who underwent coronary CTA and SPECT within 60 days before ICA between November 2009 and July 2011 were included for follow-up.
View Article and Find Full Text PDFBackground: Pulmonary hypertension (PH) is associated with endothelial dysfunction. However, the cause of endothelial dysfunction and its impact on PH remain incompletely understood. We aimed to investigate whether the hypoxia-inducible FUNDC1 (FUN14 domain-containing 1)-dependent mitophagy pathway underlies PH pathogenesis and progression.
View Article and Find Full Text PDFBackground: The emergence of induced pluripotent stem cells (iPSCs) offers a promising approach for replacing damaged neurons and glial cells, particularly in spinal cord injuries (SCI). Despite its merits, iPSC differentiation into spinal cord progenitor cells (SCPCs) is variable, necessitating reliable assessment of differentiation and validation of cell quality and safety. Phenotyping is often performed via label-based methods including immunofluorescent staining or flow cytometry analysis.
View Article and Find Full Text PDFClinical application of chimeric molecules for targeted protein degradation has been limited by unfavorable drug-like properties and biosafety concerns arising from nonspecific biodistribution after systemic administration. Here we develop a method to engineer platelets for degradation of either intracellular or extracellular proteins of interest (POIs) in vivo by covalently labeling heat shock protein 90 (HSP90) in platelets with a POI ligand. The degrader platelets (DePLTs) target wound areas and undergo activation.
View Article and Find Full Text PDFBackground: 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.
View Article and Find Full Text PDFCirc Cardiovasc Imaging
November 2024
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.
View Article and Find Full Text PDFRationale And Objectives: To explore the value of diffusion tensor imaging (DTI), diffusion kurtosis imaging (DKI), neurite orientation dispersion and density imaging (NODDI), and mean apparent propagator (MAP) magnetic resonance imaging histogram analysis in evaluating the grade and proliferative activity of meningiomas.
Materials And Methods: A total of 134 meningioma patients were prospectively included and underwent magnetic resonance diffusion imaging. The whole-tumor histogram parameters were extracted from multiple functional maps.
Tic disorders (TDs) include a heterogeneous group of neurodevelopmental conditions linked to dysfunction of the cortical-striatal-thalamic-cortical (CSTC) circuit. In this article, we report a case of a 9-year-old boy who presented with infrequent tics affecting the right eye and mouth. Brain imaging revealed a T2-weighted hyperintense mass in the left thalamus.
View Article and Find Full Text PDFAs SARS-CoV-2 evolves, increasing in potential for greater transmissibility and immune escape, updated vaccines are needed to boost adaptive immunity to protect against COVID-19 caused by circulating strains. Here, we report features of the monovalent Omicron XBB.1.
View Article and Find Full Text PDFObjective: We evaluated the cost-effectiveness of a bundled intervention including an antimicrobial stewardship program (ASP), procalcitonin (PCT) testing, and rapid blood culture identification (BCID), compared with pre-implementation standard care in critically ill adult patients with sepsis.
Methods: We conducted a decision tree model-based cost-effectiveness analysis alongside a previously published pre- and post-implementation quality improvement study. We adopted a public Canadian healthcare payer's perspective.
Background And Objectives: Although dexmedetomidine (DEX) is widely administered during endovascular treatment (EVT) to enhance procedural adherence of patients with acute ischemic stroke (AIS) with large vessel occlusion, there is limited research on the association of DEX and outcomes among these patients. Hence, this study aimed to explore the safety and outcomes of DEX during conscious sedation (CS) in a real-world setting among patients undergoing EVT.
Methods: This study was an individual patient-level pooled analysis of 2 multicenter randomized clinical trials RESCUE-BT and DEVT.
Background: Effective targets for systolic blood-pressure control in patients with type 2 diabetes are unclear.
Methods: We enrolled patients 50 years of age or older with type 2 diabetes, elevated systolic blood pressure, and an increased risk of cardiovascular disease at 145 clinical sites across China. Patients were randomly assigned to receive intensive treatment that targeted a systolic blood pressure of less than 120 mm Hg or standard treatment that targeted a systolic blood pressure of less than 140 mm Hg for up to 5 years.