Results 31 to 40 of about 784,891 (338)

Bifurcation analysis of a free boundary model of plaque formation associated with the cholesterol ratio [PDF]

arXiv, 2020
The low-density lipoprotein (LDL)/high-density lipoprotein (HDL)-cholesterol ratio has been shown a high correlation with the cardiovascular risk assessment. Is it possible to quantify the correlation mathematically? In this paper, we develop a bifurcation analysis for a mathematical model of the plaque formation with a free boundary in the early stage
arxiv  

A Weighted U Statistic for Genetic Association Analyses of Sequencing Data [PDF]

Genet Epidemiol. 2014 Dec;38(8):699-708, 2015
With advancements in next generation sequencing technology, a massive amount of sequencing data are generated, offering a great opportunity to comprehensively investigate the role of rare variants in the genetic etiology of complex diseases. Nevertheless, this poses a great challenge for the statistical analysis of high-dimensional sequencing data. The
arxiv   +1 more source

Emerging low-density lipoprotein therapies: Targeting PCSK9 for low-density lipoprotein reduction [PDF]

Journal of Clinical Lipidology, 2013
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a protein secreted by the hepatocyte that regulates the surface expression of low-density lipoprotein (LDL) receptors by targeting them for lysosomal degradation. Statins enhance PCSK9 synthesis, an effect that blunts the LDL-cholesterol (-C)-lowering effectiveness of statins.
openaire   +3 more sources

On‐treatment dynamics of circulating extracellular vesicles in the first‐line setting of patients with advanced non‐small cell lung cancer: the LEXOVE prospective study

Molecular Oncology, EarlyView.
The LEXOVE prospective study evaluated plasma cell‐free extracellular vesicle (cfEV) dynamics using Bradford assay and dynamic light scattering in metastatic non‐small cell lung cancer patients undergoing first‐line treatments, correlating a ∆cfEV < 20% with improved median progression‐free survival in responders versus non‐responders.
Valerio Gristina, Viviana Bazan, Nadia Barraco, Simona Taverna, Mauro Manno, Samuele Raccosta, Anna Paola Carreca, Marco Bono, Tancredi Didier Bazan Russo, Francesco Pepe, Pasquale Pisapia, Lorena Incorvaia, Giuseppe Badalamenti, Giancarlo Troncone, Umberto Malapelle, Daniele Santini, Antonio Russo, Antonio Galvano   +17 more
wiley   +1 more source

Oxysterols in Vascular Cells and Role in Atherosclerosis [PDF]

Implication of Oxysterols and Phytosterols in Aging and Human Diseases, 1440, Springer International Publishing, pp.213-229, 2024, Advances in Experimental Medicine and Biology
Atherosclerosis is a major cardiovascular complication of diseases associated with elevated oxidative stress such as type 2 diabetes and metabolic syndrome. In these situations, low density lipoproteins (LDL) undergo oxidation. Oxidized LDL display proatherogenic activities through multiple and complex mechanisms which lead to dysfunctions of vascular ...
arxiv   +1 more source

Mapping Hsp104 interactions using cross‐linking mass spectrometry

FEBS Open Bio, EarlyView.
This study examines how cross‐linking mass spectrometry can be utilized to analyze ATP‐induced conformational changes in Hsp104 and its interactions with substrates. We developed an analytical pipeline to distinguish between intra‐ and inter‐subunit contacts within the hexameric homo‐oligomer and discovered contacts between Hsp104 and a selected ...
Kinga Westphal, Karolina Michalska, Andrzej Joachimiak, Lukasz A. Joachimiak   +3 more
wiley   +1 more source

Atorvastatin increases human serum levels of proprotein convertase subtilisin/kexin type 9

Journal of Lipid Research, 2008
Proprotein convertase subtilisin/kexin type 9 (PCSK9) has gained attention as a key regulator of serum low density lipoprotein cholesterol (LDL-C) levels. This novel protease causes the degradation of hepatic low density lipoprotein receptors. In humans,
Holly E. Careskey, R. Aleks Davis, William E. Alborn, Jason S. Troutt, Guoqing Cao, Robert J. Konrad   +5 more
doaj  

Debiased Inference on Heterogeneous Quantile Treatment Effects with Regression Rank-Scores [PDF]

arXiv, 2021
Understanding treatment effect heterogeneity is vital to many scientific fields because the same treatment may affect different individuals differently. Quantile regression provides a natural framework for modeling such heterogeneity. We propose a new method for inference on heterogeneous quantile treatment effects in the presence of high-dimensional ...
arxiv  

High density lipoprotein metabolism in low density lipoprotein receptor-deficient mice1[S]

Journal of Lipid Research, 2014
The LDL receptor (LDLR) and scavenger receptor class B type I (SR-BI) play physiological roles in LDL and HDL metabolism in vivo. In this study, we explored HDL metabolism in LDLR-deficient mice in comparison with WT littermates.
Franz Rinninger, Markus Heine, Roshni Singaraja, Michael Hayden, May Brundert, Rajasekhar Ramakrishnan, Joerg Heeren   +6 more
doaj  

Self-Organization and Chaos in the Metabolism of Hemostasis in a Blood Vessel [PDF]

Ukr. J. Phys., Vol. 61, N 7, p.648-655 (2016), 2017
A mathematical model of the metabolic process of formation of the hemostasis in a blood-carrying vessel is constructed. As distinct from the earlier developed model of the multienzyme prostacyclin-thromboxane system of blood, this model includes, for the first time, the influence of the level of "bad cholesterol", i.e., low-density lipoproteins (LDLs),
arxiv   +1 more source