Patients with coronavirus disease 2019 (COVID-19) are at high risk of developing a hypercoagulable state and thrombosis. The von Willebrand factor (vWF) produced by endothelial cells (ECs) is a critical thrombosis regulator. We previously found that cytoskeleton-associated protein 4 (CKAP4) is a novel receptor for the spike protein of severe acute respiratory syndrome coronavirus-2 and is involved in COVID-19-associated coagulopathy.
View Article and Find Full Text PDFTwo new meroterpenoids, hyrtamide A () and hyrfarnediol A (), along with two known ones, 3-farnesyl-4-hydroxybenzoic acid methyl ester () and dictyoceratin C (), were isolated from a South China Sea sponge sp. Their structures were elucidated by NMR and MS data. Compounds - exhibited weak cytotoxicity against human colorectal cancer cells (HCT-116), showing IC values of 41.
View Article and Find Full Text PDFrs2736098 is a synonymous polymorphism in TERT (telomerase reverse transcriptase), an enzyme involved in tumor onset of multiple tissues, and should play no roles in carcinogenesis. However, a search in cancer somatic mutation database indicated that the mutation frequency at rs2736098 is much higher than the average one for . Moreover, there are significant H3K4me1 and H3K27Ac signals, two universal histone modifications for active enhancers, surrounding rs2736098.
View Article and Find Full Text PDFObjective: Developing and assessing a risk prediction model of postoperative atrial fibrillation (POAF) after coronary artery bypass grafting (CABG), and aims to provide a reference for the prediction and prevention.
Design: A retrospective case-control study.
Setting: Three major urban teaching and university hospitals and tertiary referral centers.
Objectives: This study attempted to explore the hemodynamics and potential mechanisms driving pulmonary circulation in status of ventricular fibrillation (VF) following continuous-flow left ventricular assist device (CF-LVAD) implantation.
Methods: An ovine CF-LVAD model was built in small-tailed Han sheep, with the pump speed set as 2,400 rpm. VF was induced following ventricular tachycardia using a temporary pacemaker probe to stimulate the right and left ventricular free walls.
Objective: This study aims to analyze the association between preoperative LDL/HDL ratio and new-onset atrial fibrillation (AF) after on-pump coronary artery bypass grafting (on-pump CABG), evaluate the clinic value of preoperative LDL/HDL ratio to identify postoperative rhythm.
Methods: A retrospective study of consecutive patients (n = 2052) who underwent on-pump CABG at TEDA International Cardiovascular Hospital (Tianjin, China), from June 1, 2020, to December 30, 2021, was conducted. The association between preoperative LDL/HDL and new-onset POAF was analyzed by Lowess curve and univariate logistic regression.
Myosin 1b (Myo1b) is an important single-headed membrane-associated motor of class I myosins that participate in many critical physiological and pathological processes. Mounting evidence suggests that the dysregulation of Myo1b expression has been extensively investigated in the development and progression of several tumors. However, the functional mechanism of Myo1b in CRC angiogenesis and autophagy progression remains unclear.
View Article and Find Full Text PDFBMC Cardiovasc Disord
May 2022
Background: Systemic inflammatory response syndrome (SIRS) is a common complication after cardiac surgery. There are no definite optimal glycemic threshold for pediatric patients receiving open-heart surgery with CPB. The study aimed to investigate the optimal cardiopulmonary bypass (CPB) glucose in patients undergoing cardiac surgery.
View Article and Find Full Text PDFBoth interleukin (IL)-7 and human periodontal ligament cells (hPDLCs) have immunomodulatory properties. However, their combined effect on CD4T cells has never been studied. In this study, we aimed to investigate the effect of conditioned medium of hPDLCs treated with rhIL-7 on the differentiation of CD4T cells into regulatory T cells/T helper 17 cells (Treg/Th17 cells) and observe the effect of IL-7 on the immunomodulatory properties of PDLCs.
View Article and Find Full Text PDFObjectives: An acute animal experiment was performed to observe factors influencing the functional status of the aortic valve functional status after continuous-flow left ventricular assist device (CF-LVAD) implantation in an ovine model, and a physiologic predictive model was established.
Methods: A CF-LVAD model was established in Small Tail Han sheep. The initial heart rate (HR) was set to 60 beats/min, and grouping was performed at an interval of 20 beats/min.
The dewaterability of excess sludge directly affects the efficiency and cost of sludge disposal, and improving sludge dewaterability is a crucial way to reduce sludge volume. This study proposes a method to improve the dewaterability of residual sludge by using mixed yeast strains to degrade extracellular polymeric substances (EPS) in activated sludge. Firstly, the mixed cells of three yeast strains were injected into the sterilized EPS solution to investigate the degradation efficiency of EPS components.
View Article and Find Full Text PDFHeat shock transcription factors (Hsfs) are important regulators of biotic and abiotic stress responses in plants. Currently, the Hsf gene family is not well understood in cassava, an important tropical crop. In the present study, 32 genes were identified from the cassava genome database, which were divided into three types based on functional domain and motif distribution analyses.
View Article and Find Full Text PDFAim: To investigate a possible correlation between visual acuity (VA) prognosis and the presence at baseline of various orbital and ocular signs in patients affected by indirect traumatic optic neuropathy (ITON).
Methods: From July 1, 2012 to July 1, 2015, 224 adults diagnosed with ITON who underwent endoscopic trans-ethmosphenoid optic canal decompression (ETOCD) were reviewed. Visual outcome before and after treatment were taken into comparison.
Graphene oxide-Ag nanoparticle composites were prepared through impregnation reduction using different reactants. Transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy analyses were performed to characterize differences in the morphologies of three different Ag-GO composites. Scanning electron microscopy, transmission electron microscopy, and differential scanning calorimetry analyses were also applied to evaluate the morphology and thermal stability of the hybrid membranes.
View Article and Find Full Text PDFMicroRNAs (miRNAs) are small non-coding RNAs, which silence target mRNA via cleavage or translational inhibition to function in regulating gene expression. MiRNAs act as important regulators of plant development and stress response. For understanding the role of miRNAs responsive to apple ring rot stress, we identified disease-responsive miRNAs using high-throughput sequencing in Malus × domestica Borkh.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
April 2006
Objective: To explore the protective effect of HSP72 on the acute injury of cardiomyocyte induced by oxidative stress.
Methods: Cardiomyocytes of neonatal rats treated with heat shock (42 degrees C, 30 min, recovery for 6 h) to induce the expression of HSP72 and HSP72 antisense oligonucleotide was transformed to block the expression of HSP72. 0.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
October 2004
Objective: To observe the cleavage of nucleolin (C23) during apoptosis induced by oxidative stress and to clarify the effect of heat shock response (HSR) on the cleavage of nucleolin and its possible molecular mechanism.
Methods: We added 0.5 mmol/L peroxide hydrogen (H2O2 ) into cultured cells to mimic oxidative stress.
Hunan Yi Ke Da Xue Xue Bao
April 2002
Objective: To study the role of beta-amyloid protein 1-42 (A beta 1-42) content in the cerebrospinal fluid (CSF) of Alzheimer disease (AD) patients.
Methods: A beta 1-42 levels were measured with the ELISA method in AD (n = 30), non-AD (NAD, n = 25) and non-dementia (ND, n = 21).
Results: The A beta 1-42 mean value for AD was (109.