Investigators conducting behavioral experiments often need precise control over the timing of the delivery of stimuli to subjects and to collect precise times of subsequent behavioral responses. Furthermore, investigators want fine-tuned control over how various multi-modal cues are presented. behaviorMate takes an 'Intranet of Things' approach, using a networked system of hardware and software components for achieving these goals.
View Article and Find Full Text PDFThis study aims to explore the suture effectiveness of butterfly suture combined the looped, broad, and deep buried suture (butterfly tension-reducing suture) in patients with pigmented naevus. A retrospective analysis of patients with pigmented naevus from January 2021 to December 2022 were performed. Patients were divided into: (1) control group that received routine suture; (2) observation group receiving butterfly tension-reducing suture.
View Article and Find Full Text PDFBackground: Thoracic aortic aneurysm and dissection (TAAD) is a life-threatening cardiovascular event characterized by high mortality rates. Previous studies have shown that matrix metalloproteinases 19 (MMP19) was involved in TAAD formation, while the detailed role of MMP19 in TAAD pathogenesis and underlying mechanism remain unclear.
Methods: To investigate the role of MMP19 in the progression of TAAD, we generated global Mmp19 knockout mice, as well as VSMCs (vascular smooth muscle cells)-specific Mmp19 knockdown mice, and established a BAPN-induced TAAD model.
Alzheimer's disease (AD) is a neurodegenerative disorder characterized by the accumulation of amyloid-beta (Aβ) and leading to cellular senescence and cognitive deficits. Cellular senescence contributes significantly to the pathogenesis of AD through the senescence-associated secretory phenotype (SASP), exacerbating Aβ deposition. This study investigates the protective effects of 3-N-Butylphthalide (NBP), a compound derived from Apium graveolens Linn (Chinese celery), on Aβ-induced cellular senescence in U87 cells.
View Article and Find Full Text PDFImmune checkpoint inhibitors (ICIs) have dramatically transformed the treatment landscape for various malignancies, achieving notable clinical outcomes across a wide range of indications. Despite these advances, resistance to immune checkpoint blockade (ICB) remains a critical clinical challenge, characterized by variable response rates and non-durable benefits. However, growing research into the complex intrinsic and extrinsic characteristics of tumors has advanced our understanding of the mechanisms behind ICI resistance, potentially improving treatment outcomes.
View Article and Find Full Text PDFCopy number variations (CNVs) in the 7q11.2 and 22q11.2 chromosomal regions are major contributors to genetic disorders such as Williams-Beuren syndrome and 22q11.
View Article and Find Full Text PDFButanol, a highly toxic volatile organic compound, poses significant health risks. Consequently, the creation of efficient gas-sensitive materials for butanol detection holds substantial practical significance. This study employed a secondary hydrothermal technique to synthesize InO, BiVO, and their composite InO/BiVO.
View Article and Find Full Text PDFMol Ther Oncol
September 2024
Gastric cancer (GC) poses a significant global health challenge, ranking fifth in incidence and third in mortality among all malignancies worldwide. Its insidious onset, aggressive growth, proclivity for metastasis, and limited treatment options have contributed to its high fatality rate. Traditional approaches for GC treatment primarily involve surgery and chemotherapy.
View Article and Find Full Text PDFThis study aimed to determine the optimal high-sensitivity cardiac troponin I (hs-cTnI)-based algorithm for early diagnosis of non-ST-elevation myocardial infarction (NSTEMI) in Chinese patients. We prospectively enrolled 1,606 patients with suspected NSTEMI from three emergency departments across China, collecting blood samples at 0, 1, and 3 h post-admission. Patients were classified using the 0/1-h and 0/3-h algorithms.
View Article and Find Full Text PDFMild and inexpensive copper-catalyzed aromatization-driven ring-opening amination and oxygenation of spiro dihydroquinazolinones are presented, respectively. These protocols provide facile and atom-economical access to the aminated and the carbonyl-containing quinazolin-4(3H)-ones in good yields with good functional group compatibility, which are difficult to obtain by conventional methods. Remarkably, a telescoped procedure involving the condensation and the ring-opening/functionalization for simple cycloalkanone was found to be accessible.
View Article and Find Full Text PDFMetal-free, photoredox-catalyzed aromatization-driven deconstructive functionalization of spiro-dihydroquinazolinones with α-CF alkenes is presented. The readily available spiro-dihydroquinazolinones reacted efficiently with α-CF alkenes during photocatalysis to give the -difluoroallylated and the CF-containing quinazolin-4(3)-ones in good yields with excellent chemoselectivity. The selectivity depends on the electron effect of substituents in α-CF alkenes.
View Article and Find Full Text PDFAn efficient synthesis of quinoxaline-fused aza-bicyclo[2.1.1]hexanes bearing multiple quaternary carbon centers via the intermolecular [2π+2σ] cycloaddition of bicyclo[1.
View Article and Find Full Text PDFBackground: Thrombocytopenia is common for patients in the intensive care unit (ICU) and is associated with adverse outcomes. ICU thrombocytopenia in pediatric patients who underwent cardiac surgeries with cardiopulmonary bypass (CPB) is inadequately studied.
Objectives: We aimed to investigate the incidence, risk factors, and prognostic role of ICU thrombocytopenia after congenital cardiac surgeries with CPB.
Aromatization-driven deconstruction and functionalization of spiro dihydroquinazolinones dual photoredox/nickel catalysis is developed. The aromatization effect was introduced to synergistically drive unstrained cyclic C-C bond cleavage, with the aim of overcoming the ring-size limitation of nitrogen-centered radical induced deconstruction of carbocycles. Herein, we demonstrate the synergistic photoredox/nickel catalyzed deconstructive cross-coupling of spiro dihydroquinazolinones with organic halides.
View Article and Find Full Text PDFBackground: Pericoronary epicardial adipose tissue (EAT) is a unique visceral fat depot that surrounds the adventitia of the coronary arteries without any anatomic barrier. Clinical studies have demonstrated the association between EAT volume and increased risks for coronary artery disease (CAD). However, the cellular and molecular mechanisms underlying the association remain elusive.
View Article and Find Full Text PDFHigher plants survive terrestrial water deficiency and fluctuation by arresting cellular activities (dehydration) and resuscitating processes (rehydration). However, how plants monitor water availability during rehydration is unknown. Although increases in hypo-osmolarity-induced cytosolic Ca concentration (HOSCA) have long been postulated to be the mechanism for sensing hypo-osmolarity in rehydration, the molecular basis remains unknown.
View Article and Find Full Text PDFAortic root aneurysm is a potentially life-threatening condition that may lead to aortic rupture and is often associated with genetic syndromes, such as Marfan syndrome (MFS). Although studies with MFS animal models have provided valuable insights into the pathogenesis of aortic root aneurysms, this understanding of the transcriptomic and epigenomic landscape in human aortic root tissue remains incomplete. This knowledge gap has impeded the development of effective targeted therapies.
View Article and Find Full Text PDFThe direct carboxylation of the benzylic C-H bonds under mild conditions is of great importance and is quite challenging. Herein, we report an approach for the carboxylation of remote benzylic C(sp)-H bonds by integrating the redox-neutral visible-light photoredox catalysis and the nitrogen-centered 1,5-hydrogen atom transfer. The chemical transformation progresses via consecutive single electron transfer, 1,5-hydrogen atom transfer, formation of benzylic carbanion, and nucleophilic attack on the CO steps, thereby enabling access to the desired carboxylation products with moderate to high yields.
View Article and Find Full Text PDFThe borylation of unreactive carbon-hydrogen bonds is a valuable method for transforming feedstock chemicals into versatile building blocks. Here, we describe a transition metal-free method for the photoredox-catalyzed borylation of unactivated C(sp)-H bond, initiated by 1,5-hydrogen atom transfer (HAT). The remote borylation was directed by 1,5-HAT of the amidyl radical, which was generated by photocatalytic reduction of hydroxamic acid derivatives.
View Article and Find Full Text PDFTraditional offline detection of volatile organic compounds (VOCs) requires complex and time-consuming pre-treatments including gas sampling in containers, pre-concentrations, and thermal desorption, which hinders its application in rapid VOCs monitoring. Developing a cost-effective instrument is of great importance for online measurement of VOCs. Recently, photoionization detectors (PID) are received great attention due to their fast response time and high sensitivity.
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