Publications by authors named "Dong-Dan Zheng"

Introduction: Reduction in low-density lipoprotein cholesterol (LDL-C) improves clinical outcomes in patients with coronary artery disease. However, rates of lipid-lowering medication adherence are far from ideal. Reducing dosage frequency from multiple dosing to once-daily dosing may improve patients' medication adherence.

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Recent reports show that an early repolarization pattern (ERP) is associated with a higher incidence of sudden cardiac death in patients with obstructive coronary artery disease (CAD). Sporadic case studies have pointed out that ERP might be related to obstructive CAD.In consecutive patients who had undergone coronary angiography, we investigated the relationship between ERP and obstructive CAD by evaluating its association with coronary artery stenosis.

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Background: Recent evidence has linked early repolarisation pattern (ERP) to sudden cardiac death (SCD) in patients without structural heart disease. However, no studies have clarified the prognostic value of ERP in people at high risk for atherosclerotic heart disease.

Methods: We prospectively assessed the prognostic significance of ERP on ECGs in a community-based population of 18 231 subjects with atherosclerotic risk factors (49.

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Background: Data on sex difference in response to cardiac resynchronization therapy (CRT) remain controversial. We conducted a meta-analysis to summarize all published studies to determine whether sex-based differences in response to CRT exist.

Methods And Results: We performed a literature search using MEDLINE (source PubMed; January 1966 to March 2014) and EMBASE (January 1980 to March 2014) with no restrictions.

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Article Synopsis
  • Smoking is linked to an increased risk of venous thromboembolism (VTE), with current smokers having the highest relative risks compared to never smokers.
  • A meta-analysis of 32 studies involving nearly 4 million participants found a dose-response relationship, where the risk of VTE increases with the number of cigarettes smoked.
  • The findings suggest that smoking has clinical implications for VTE prevention and highlights the importance of considering factors like body mass index in risk assessments.
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A number of studies have demonstrated that inflammation plays a role in doxorubicin (DOX)-induced cardiotoxicity. However, the molecular mechanism by which DOX induces cardiac inflammation has yet to be fully elucidated. The present study aimed to investigate the role of the p38 mitogen-activated protein kinase (MAPK)/nuclear factor-κB (NF-κB) pathway in DOX-induced inflammation and cytotoxicity.

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The roles of hydrogen sulfide (H(2)S) and endoplasmic reticulum (ER) stress in doxorubicin (DOX)-induced cardiotoxicity are still unclear. This study aimed to dissect the hypothesis that H(2)S could protect H9c2 cells against DOX-induced cardiotoxicity by inhibiting ER stress. Our results showed that exposure of H9c2 cells to DOX significantly inhibited the expression and activity of cystathionine-γ-lyase (CSE), a synthetase of H(2)S, accompanied by the decreased cell viability and the increased reactive oxygen species (ROS) accumulation.

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  • Amyloid β peptide (Aβ) builds up in the brain and is linked to Alzheimer's disease, and ginsenoside Rg1 from ginseng might help protect against it.
  • The study tested Rg1's effects on brain cells and in rats that mimic postmenopausal changes to see if it changes how the body processes a protein involved in Aβ buildup.
  • Results showed that Rg1 helped produce a protein that reduces Aβ levels and improved memory in the rats, suggesting it could help prevent Alzheimer's, especially in older women.
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Hydrogen sulfide (H(2)S) has been shown to exert cardioprotective effects. However, the roles of extracellular signal-regulated protein kinases 1/2 (ERK1/2) in H(2)S-induced cardioprotection have not been completely elucidated. In this study, cobalt chloride (CoCl(2)), a chemical hypoxia mimetic agent, was applied to treat H9c2 cells to establish a chemical hypoxia-induced cardiomyocyte injury model.

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Article Synopsis
  • Bilobalide (BB) is a natural extract from Ginkgo biloba leaves that helps protect brain cells.
  • This study found that BB reduces harmful proteins related to Alzheimer's disease by affecting a specific cell signaling pathway called PI3K.
  • BB might work by changing the activity of a protein called cathepsin B, which helps lower the levels of these harmful proteins in the brain.
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