Myocardial infarction (MI) is a leading cause of mortality worldwide, contributing significantly to long-term cardiac dysfunction and heart failure. Effective therapeutic strategies are urgently needed to mitigate the extensive damage caused by MI and subsequent ischemia-reperfusion (I/R) injury. This study investigates the role of the Chemokine receptor 2 (CCR2) in regulating NLRP3-dependent cardiomyocyte pyroptosis following myocardial ischemia-reperfusion (MIR), elucidating its molecular mechanisms.
View Article and Find Full Text PDFBackground: To assess the changes in the posterior corneal surface following small incision lenticule extraction (SMILE) with different optical zones.
Methods: In this retrospective study, 106 eyes of 106 patients who underwent SMILE were recruited 3 years after the procedure. Eyes were divided into two groups according to the size of the surgical optical zone: group A (52 eyes, ≤6.
Lysophosphatidic acid (LPA) is a bioactive phospholipid that plays a crucial role in cardiovascular diseases. Here, we question whether LPA contributes to myocardial ischemia/reperfusion (I/R) injury by acting on transient receptor potential vanilloid 1 (TRPV1) in spinal cord. By ligating the left coronary artery to establish an in vivo I/R mouse model, we observed a 1.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
August 2023
Objectives: The intestinal microbial characteristics of patients with simple cerebral infarction (CI) and CI complicated with Type 2 diabetes mellitus (CI-T2DM) are still not clear. This study aims to analyze the differences in the variable characteristics of intestinal flora between patients simply with CI and CI-T2DM.
Methods: This study retrospectively collected the patients who were admitted to the Affiliated Hospital of Putian University from September 2021 to September 2022.
People's lifestyles have changed dramatically during the coronavirus disease 2019 (COVID-19) pandemic, yet data on physical examinations in the Chinese population before and during the pandemic are rarely reported. The study was based on the data from the physical examination center of Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine. We collected the data of physical examinations information between January 2017 and March 2022.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
August 2022
Objective: To study the molecular mechanism of PI3K-Ⅲ like functional domain inducing programmed cell death of leukemia cell line K562.
Methods: The purified PI3K-Ⅲ like functional domain protein was obtained by Pichia pastoris expression system. MTT assay and colony-forming assay were used to detect the effects of PI3K-Ⅲ like functional domain protein on K562 cell proliferation.
Voltage-gated sodium channel Na1.5 encoded by the gene plays crucial roles in cardiac electrophysiology. Previous genetic studies have shown that mutations in are associated with multiple inherited cardiac arrhythmias.
View Article and Find Full Text PDFIliac vein compression syndrome (IVCS) or May-Thurner syndrome occurs predominantly in young to middle-aged women. Here we reported a case of IVCS in a 5-year-old boy. The child was admitted to our vasculocardiology department with left lower extremity that had been swollen for 1 month.
View Article and Find Full Text PDFDanon disease (DD) is a monogenic lysosomal storage disorder characterized by cardiomyopathy, skeletal myopathy, and variable degrees of intellectual disability. It is caused by a deficiency of lysosomal-associated membrane protein 2 (). Two unrelated boys who presented with severe hypertrophic cardiomyopathy and elevated levels of liver enzymes, and were diagnosed with Danon disease at a very young age, were investigated.
View Article and Find Full Text PDFHypertrophic cardiomyopathy (HCM) is a group of myocardial diseases defined by cardiac hypertrophy which cannot be explained by secondary causes with a non-dilated left ventricle and preserved or increased ejection fraction. Sometimes it can be combined with restrictive cardiomyopathy. Here we describe a very rare case of a 12-year-old girl with non-obstructive hypertrophic cardiomyopathy accompanied by restrictive phenotype, complete left bundle branch block and intermittent third-degree atrioventricular block, who presented with recurrent syncope.
View Article and Find Full Text PDFThe soil major component of clay plays an important role in governing the fate and transport of engineered nanomaterials (e.g., the most commonly used titanium dioxide nanoparticles; nTiO) in the subsurface environments via forming nTiO-clay aggregates.
View Article and Find Full Text PDFMyocardium ischemia-reperfusion injury (IRI) is the major cause of postoperative cardiac dysfunction. While intrathecal morphine preconditioning (ITMP) can reduce IRI in animals, the molecular processes underlying IRI and ITMP remain elusive. Transient receptor potential vanilloid type 1 (TRPV1) is highly expressed in cardiac sensory neurons and has a crucial role in detecting myocardial ischemia.
View Article and Find Full Text PDFBackground: Nerve growth factor (NGF) has been implicated in hyperalgesia by sensitising nociceptors. A role for NGF in modulating myocardial injury through ischaemic nociceptive signalling is plausible. We examined whether inhibition of spinal NGF attenuates myocardial ischaemia-reperfusion injury and explored the underlying mechanisms.
View Article and Find Full Text PDFNuclear depletion of TDP-43, an essential RNA binding protein, may underlie neurodegeneration in amyotrophic lateral sclerosis (ALS). As several functions have been ascribed to this protein, the critical role(s) of TDP-43 in motor neurons that may be compromised in ALS remains unknown. We show here that TDP-43 mediated splicing repression, which serves to protect the transcriptome by preventing aberrant splicing, is central to the physiology of motor neurons.
View Article and Find Full Text PDFDilated cardiomyopathy (DCM) is characterized by left or bilateral ventricular dilation and systolic dysfunction without rational conditions, which can lead to progressive heart failure and sudden cardiac death. Most of the pathogenic genes have been reported in adult population by locus mapping in familial cases and animal model studies. However, it still remains challenging to decipher the role of genetics in the etiology of pediatric DCM.
View Article and Find Full Text PDFBackground: Myocardial ischemia and reperfusion-evoked spinal reflexes involve nociceptive signals that trigger neuronal excitation through cardiac afferents, projecting into the thoracic spinal cord. Ischemic preconditioning (IPC) involves brief episodes of sublethal ischemia and reperfusion enhances the resistance of the myocardium to subsequent ischemic insults. This study investigated the effects of IPC on ischemia-reperfusion (I/R) stimulation-induced activation in the thoracic spinal cord of rats.
View Article and Find Full Text PDFEvidences from previous studies confirmed that intrathecal morphine preconditioning (ITMP) reduces the cardiac injury of ischemia-reperfusion (IR) via the central nervous system. However, the molecular mechanism is not fully understood. The breath of central nerve growth factor (NGF) during nociceptive transmission has been well documented, and little is known about the significance of NGF in myocardial injury of IR and intrathecal morphine-induced cardioprotection.
View Article and Find Full Text PDFPurpose: To analyze the age-related changes in corneal spherical aberration (CSA) and higher order aberrations (HOAs) and to develop a novel model to estimate the change in CSA with age.
Methods: This was a cross-sectional study of the right eyes of 3,769 patients. Anterior corneal spherical aberration (ASA), posterior corneal spherical aberration (PSA), total corneal spherical aberration (TSA), and the root mean square of corneal HOAs were measured using a Scheimpflug tomographer.
Transport behaviors of titanium dioxide nanoparticles (nTiO) were examined in the individual- and co-presence Escherichia (E.) coli and phosphate in heterogeneous sand (uncoated and iron oxyhydroxide-coated sand) columns. The results showed that for the individual presence of phosphate, the degree of nTiO deposition was less in uncoated than in iron oxide-coated sands.
View Article and Find Full Text PDFThe rapid development of nanomaterials has led to the unavoidable leakage and release of nanoparticles (NPs) into soil and the underlying groundwater. It is possible for chars and phosphate introduced into soil to improve crop soil properties by improving contact with NPs. In this study, the influences of hydrochar and/or phosphate on the anatase nTiO transport behaviors were investigated under different conditions.
View Article and Find Full Text PDFPurpose: To analyze the changes in corneal astigmatism as a function of age and develop a novel model to estimate corneal astigmatic change according to age.
Methods: This was a cross-sectional study of right eyes of 3,769 individuals. Total corneal astigmatism, keratometric astigmatism, anterior corneal astigmatism, and posterior corneal astigmatism were measured by a Scheimpflug tomographer.
Due to the potential negative impact of nano silica (nSiO) on human's health and living environments, it is important to investigate their transport in soil environments. Hydrochars has been widely used in agricultural soil and phosphate (P) is an important nutrient, thus the aggregation and transport of nSiO in saturated sand columns were investigated in single and binary systems of hydrochars and P. The experimental results showed that the nSiO aggregates can be restablized by the adsorption of P or the attachment of hydrochars at high IS (>100 mM) and low pH (<7.
View Article and Find Full Text PDFThe widespread use of nanoparticles (NPs) has led to their inevitable introduction into environmental systems. How the existence of hydrochars in crop soils will affect the mobility of nanoparticle titanium dioxide (nTiO), especially in the presence of ammonium (NH), remains unknown. Research is needed to study the effects of hydrochars on the transport and retention of nTiO and to uncover the mechanisms of these effects on nTiO transport.
View Article and Find Full Text PDFAs a rare type of Congenital Heart Defects (CHD), the genetic mechanism of Total Anomalous Pulmonary Venous Return (TAPVR) remains unknown, although previous studies have revealed potential disease-driving regions/genes. Blood samples collected from the 6 sporadic TAPVR cases and 81 non-TAPVR controls were subjected to whole exome sequencing. All detected variations were confirmed by direct Sanger sequencing.
View Article and Find Full Text PDFThe widely used artificial nanoparticles (NPs) and the excess of ammonium (NH) fertilizers are easily released into the natural environment. So, clarifying the mobility of NPs in the presence of NH is therefore of great urgency and high priority. Currently, few studies focus on the transport and deposition of nanoparticle titanium dioxide (nTiO) in single and binary systems containing NH, especially describing this process by a mathematical model.
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