Background: The pathomechanism of CVD is a complex and multifactorial process. The primary mechanism of CVD is atherosclerosis. Inflammation in atherogenesis raises the risk of hypoxia, which will activate hypoxia-inducible factor-1α (HIF1A). Also, together with lipoprotein-associated phospholipase A2 (Lp-PLA2), an inflammatory mediator for atherogenesis.
Purpose: This study aims to measure the hypoxia-inducible factor-1α (HIF1A) expression and its correlation to Lp-PLA2 expression at low-risk, intermediate, and high-risk CVD populations.
Patients And Methods: The study used a correlational analysis method with a total sampling technique in 160 individuals in the risk population. The atherosclerosis risk group was analyzed using the Framingham Risk Score and categorized into low, intermediate, and high-risk groups. Venous blood samples taken from respondents were measured using the ELISA method with Lp-PLA2 and HIF-1α as parameters. Data were analyzed using normality test, homogeneity test, one-way ANOVA, post hoc-Tukey HSD, and Pearson correlation.
Results: The concentration of HIF1A had a very strong correlation with Lp-PLA2 expression, both in the low-risk group (r = 0.512), intermediate (r = 0.512), and high (r = 0.715) (P <0.05). However, the concentrations of Lp-PLA2 did not match the FRS.
Conclusion: HIF1A expression increased with increasing risk, while Lp-PLA2 expression decreased with increasing risk of atherosclerosis based on the FRS category. There is a significant correlation between HIF1A expression and Lp-PLA2 expression based on FRS.
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http://dx.doi.org/10.2147/VHRM.S283367 | DOI Listing |
Front Physiol
January 2025
Department of Biology, University of Pisa, Pisa, Italy.
Quant Imaging Med Surg
January 2025
Department of Radiology, Qilu Hospital, Shandong University, Jinan, China.
Background: Hypoxia-inducible factor-1-alpha (HIF-1α) has the potential to predict the neoadjuvant chemotherapy (NAC) response in pancreatic ductal adenocarcinoma (PDAC). This study aimed to assess the relationship between the pathological response and intratumoral HIF-1α expression in patients with PDAC receiving NAC, and investigate the predictive value of contrast-enhanced computed tomography (CECT) features in HIF-1α expression.
Methods: A total of 58 patients from three centers with pathologically confirmed PDAC who underwent NAC followed by surgery were retrospectively enrolled in this study.
Sleep Breath
January 2025
Nantong Key Laboratory of Translational Medicine in Cardiothoracic Diseases, and Research Institution of Translational Medicine in Cardiothoracic Diseases, Affiliated Hospital of Nantong University, Nantong, Jiangsu, 226001, China.
Background: Our previous study have demonstrated chronic intermittent hypoxia (CIH) induced cardiomyocyte apoptosis and cardiac dysfunction. However, the molecular mechanisms are complicated and varied. In this study, we first investigated the CaMKIIγ expression and signaling pathway in the pathogenesis of cardiomyocyte apoptosis after CIH.
View Article and Find Full Text PDFJ Exp Biol
January 2025
Department of Zoology, University of British Columbia, Vancouver, BC, Canada.
Cross-protection occurs when exposure to one stressor confers heightened tolerance against a different stressor. Alternatively, exposure to one stressor could result in reduced tolerance against other stressors. Although cross-protection has been documented in a wide range of taxa at juvenile and adult life stages, whether early developmental exposure to a stressor confers cross-protection or reduced tolerance to other stressors later in life through developmental plasticity remains largely unexplored.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Department of Biomedical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
Merkel cell carcinoma (MCC) is a rare but aggressive neuroendocrine skin cancer with limited treatment options, often associated with Merkel cell polyomavirus (MCPyV) and marked by hypoxic tumor microenvironments that promote resistance to therapies. Belzutifan, an FDA-approved hypoxia-inducible factor-2α (HIF-2α) inhibitor, has shown promise in inhibiting tumor growth; however, its clinical efficacy is hindered by its low solubility, rapid clearance, and limited bioavailability. In this study, we present a strategy using porous silicon (pSi) microparticles and nanoparticles as carriers for the sustained delivery of benzoate to MCC cells.
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