Spectrochim Acta A Mol Biomol Spectrosc
November 2024
Spectrochim Acta A Mol Biomol Spectrosc
May 2024
Detection of endogenous CO (carbon monoxide) is an interesting topic in biology because it has been discovered as a messenger for signal transduction and therapeutic effects in vital biological activities. Fluorescence imaging has proven a powerful tool for detecting endogenous CO, which drives the development of low-cost and easy-to-use fluorescent probes. In this study, four azobenzene derivatives (A1, A2, A3, and A4) with various substituents were reported, including their geometric structures, photophysical parameters, and spectral responses to Cu and CO.
View Article and Find Full Text PDFBackground: Cardiac fibrosis increases with age. Fibroblast activation plays an essential role in cardiac fibrosis. Histone modifications are involved in various chromatin-dependent processes.
View Article and Find Full Text PDFOrganic fertilizers can be crucial in promoting sustainable agricultural development, but they are not used in a wide-ranging way among smallholder farmers in many developing countries. In China, cooperatives are considered essential subjects of agricultural technical training, but it is more common to join cooperatives without participating in their technical training. Thus, joining cooperatives or not cannot simply be used to assess the role of cooperatives in influencing the farmers' production behavior.
View Article and Find Full Text PDFAn as-synthesized Eu(III) complex, denoted as Eu(N-DPNQ)(TTD), was prepared and characterized, and the antenna mechanism between these ligands and central metal emitter was studied. Here DPNQ means 10-ethyl-10H-indolo [2',3':5,6]pyrazino[2,3-f][1,10]phenanthroline and TTD is 4,4,4-trifluoro-1-(thiophen-2-yl)butane-1,3-dione. We find that Eu(N-DPNQ)(TTD) emission intensity dependents on oxygen concentration, and O-sensing skill of Eu(N-DPNQ)(TTD) in polymer composite nanofibers of poly (vinylpyrrolidone) (PVP) prepared by electrospinning is investigated.
View Article and Find Full Text PDFThe current therapy for myocarditis is immunosuppressive therapy. However, in rare cases in which patients do not respond to intervention, their condition can rapidly deteriorate to myocarditis with shock, which is characterized by extensive and diffuse lymphocyte infiltration in the myocardium. Most cases of myocarditis are caused by virus-mediated damage of cardiomyocytes, and its clinical manifestations are ventricular arrhythmia and hemodynamic disturbances.
View Article and Find Full Text PDFFront Cardiovasc Med
October 2021
Coronary heart disease (CHD) is a complex disease caused by multifaceted interaction between genetic and environmental factors, which makes identification of the most likely disease candidate proteins and their associated risk markers a big challenge. Atherosclerosis is presented by a broad spectrum of heart diseases, including stable coronary artery disease (SCAD) and acute myocardial infarction (AMI), which is the progressive stage of SCAD. As such, the correct and prompt diagnosis of atherosclerosis turns into imperative for precise and prompt disease diagnosis, treatment and prognosis.
View Article and Find Full Text PDFBackground: Myocardial dysfunction caused by sepsis (SIMD) leads to high mortality in critically ill patients. We investigated the function and mechanism of long non-coding RNA MAPKAPK5-AS1 (lncRNA MAPKAPK-AS1) on lipopolysaccharide (LPS)-induced inflammation response in vivo and in vitro.
Method: Male SD rats were utilized for in vivo experiments.
Polyphenols are used as antioxidants in various foods and beverages, which are considered to be a health benefit. The measurement of polyphenols contents is of great interest in food chemistry and health science. This work reported a microgels based photonic device (etalon) to detect polyphenols.
View Article and Find Full Text PDFAtorvastatin is a commonly prescribed statin drug for the control of lipid synthesis and recent studies have shown the cardiac protection potential of atorvastatin. Cardiac fibrosis is a critical process that impairs heart function. In the current study, the anti-fibrosis potential of atorvastatin was assessed and the mechanism associated with the treatment was explored.
View Article and Find Full Text PDFMyocardial ischemia is accompanied with hypoxia injury in myocardial cells. Long noncoding RNAs (lncRNA) CAMK2D-associated transcript 1 (C2dat1) C2dat1) has been linked with several ischemic diseases. However, the investigation regarding its role in myocardial ischemia is relatively rare.
View Article and Find Full Text PDFMyocardial infarction (MI) is an unsolved health problem which seriously affects human health around the world. miR-34a-5p acting as a tumor-suppressor is associated with left ventricular remodeling. We aimed to explore the functional roles of miR-34a-5p in cardiomyocytes.
View Article and Find Full Text PDFMicroRNA-143-3p (miR-143-3p) is involved in the initiation of inflammatory response and the progression of cardiovascular diseases. Myocardial hypertrophy is a common symptom in numerous cardiovascular diseases. In the current study, we attempted to demonstrate the role of miR-143-3p in the development of myocardial hypertrophy by focusing on its association with inflammation.
View Article and Find Full Text PDFClin Exp Pharmacol Physiol
January 2019
Cancer immunotherapy has been increasingly applied in the treatment of advanced malignancies. Consequently, immune checkpoints have become a major concern. As PD-1 is an important immunomodulatory protein, the blockade of PD-1 and its ligand PD-L1 is a promising tumour immunotherapy for human carcinoma.
View Article and Find Full Text PDFLeft ventricular hypertrophy (LVH) is a pathological characteristic shared by distinct heart disorders. Atorvastatin is employed as a lipid lowering agent and its heart protection effect has been recently reported as well. Thus, the current study attempted to validate the anti-hypertrophy effect of atorvastatin as well as the associated mechanism.
View Article and Find Full Text PDFGhrelin, a growth hormone-releasing peptide, potentially improves cardiac function, but the mechanisms remain unclear. In the study, the rat heart failure (HF) model was established by ligating the left anterior descending coronary artery (LAD) and treated with ghrelin (100μg/kg, subcutaneous injection, bid); neonatal rat cardiomyocytes were cultured and stimulated with Ang II (0.1μM) and ghrelin(0.
View Article and Find Full Text PDFThe current study aimed to investigate whether the increased expression of long chain acyl-coenzymeA synthetase 1 (ACSL1) in peripheral blood leukocytes (PBL) may be a molecular marker for the genetic evaluation of acute myocardial infarction (AMI). The mechanism of action of ACSL1 in the pathogenesis of AMI was also investigated. A total of 75 patients with AMI and 70 individuals without coronary heart disease were selected to participate in the present study.
View Article and Find Full Text PDFHeart ischemia is a hypoxia related disease. NOX2 and HIF-1α proteins were increased in cardiomyocytes after acute myocardial infarction. However, the relationship of the hypoxia-induced HIF-1α.
View Article and Find Full Text PDFActivating transcription factor 1 (ATF1) may be involved in essential hypertension (EH) by induction of NADPH oxidase 1 (NOX1) and radical oxygen species (ROSs) production. Abnormal expression of ATF1 was found in EH in previous microarray analysis. Here we tested whether a single nucleotide polymorphism (SNP) located in the 3'-untranslated region (3'UTR) of ATF1 was associated with EH susceptibility by affecting microRNA (miRNA) binding.
View Article and Find Full Text PDFBackground: Myeloproliferative neoplasms (MPNs) are blood malignancies manifested in increased production of red blood cells, white blood cells, and/or platelets. A major molecular lesion associated with the diseases is JAK2V617F, an activation mutation form of tyrosine kinase JAK2. Cardiovascular events represent the leading cause of morbidity and mortality associated MPNs, but the underlying mechanism is not well understood.
View Article and Find Full Text PDFMast cells are effector cells best known for their roles in IgE-associated allergy, but they also play a protective role in defense against pathogens. These cells express high levels of proteases including chymase, tryptase and carboxypeptidase. In the present study, we identified a congenic strain of C57BL/6 mice expressing an extraordinarily high level of chymases Mcp-2 and Mcp-4 in mast cells.
View Article and Find Full Text PDFLeft ventricular pseudoaneurysm is an uncommon complication after transmural acute myocardial infarction (AMI). Here we describe the case of a 43-year-old man who presented with AMI and chest distress despite the normal appearance of his coronary artery during coronary angiography. Timely thrombolytic therapy was administered.
View Article and Find Full Text PDFAssay Drug Dev Technol
October 2012
Population studies have consistently shown a highly inverse correlation between plasma concentration of high-density lipoprotein and the risk of atherosclerotic cardiovascular disease in humans. High-density lipoprotein (HDL) as a therapeutic target is an intense area of ongoing investigation. Aiming to solve the shortcomings of native HDL application, we prepared recombinant human HDL (rhHDL) that contains a similar composition and has similar functions with native HDL.
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