Results 61 to 70 of about 455,893 (183)

Hemodynamic Significance of APEXCT Coronary Angiography Combined With Dynamic CT Myocardial Perfusion Imaging in Assessing Restenosis After Coronary Stenting

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT This study aimed to evaluate the hemodynamic significance of in‐stent restenosis (ISR) by using a combined anatomical‐functional approach with photon‐counting CT coronary angiography (APEX‐CT CTA) and dynamic CT myocardial perfusion imaging (CT‐MPI). We prospectively enrolled 239 symptomatic patients at least 9 months after PCI.
Liang‐Shi Wang   +6 more
wiley   +1 more source

Native Coronary Collateral Microcirculation Reserve in Rat Hearts

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background We occasionally noticed that native collateral blood flow showed a recessive trend in the early stages of acute myocardial infarction in rats, which greatly interferes with the accurate assessment of native collateral circulation levels. Here,
Xiucheng Liu   +12 more
doaj   +1 more source

Toxicity Differences Between Microplastics and Nanoplastics in Organs: From Molecular Mechanisms to Potential Therapeutic Strategies

open access: yesMed Research, EarlyView.
This review systematically compares the size‐dependent toxicity of microplastics and nanoplastics in the intestine, liver, kidney, lung, and brain. Particle size determines bioavailability, barrier penetration, and injury mechanisms. Because of their small size and high surface reactivity, NPs readily cross the intestinal epithelium and blood–brain ...
Yixian Cheng   +14 more
wiley   +1 more source

Methodological Approaches Used for the Study of the Coronary Microcirculation in situ

open access: yes, 1991
Measurements of coronary microvascular parameters in situ are difficult because of the thickness of the heart muscle and cardiac contraction. Both of these problems hamper the visualization of the coronary microcirculation. We have refined methodological
William M. Chilian, David V. DeFily
core   +1 more source

X syndrome of coronary microcirculation, coronary spasms and acute myocardial infarction in patients without significant coronary lesions

open access: yesCorSalud, 2018
X syndrome of coronary microcirculation, coronary spasms and acute myocardial infarction in patients without significant coronary ...
Rodolfo Vega Candelario
doaj  

Multitarget Regulatory Mechanisms and Research Advances of Plant‐Derived Bioactive Ingredients in Hypertension Prevention and Management

open access: yesPhytotherapy Research, EarlyView.
Schematic overview of the multi‐target and multi‐pathway mechanisms of PDBI in the prevention and management of hypertension. ABSTRACT Hypertension remains a major global risk factor for cardiovascular diseases, yet current treatments face challenges such as suboptimal blood pressure control and inadequate organ protection.
Qiqi Deng   +6 more
wiley   +1 more source

Ceramide Signaling in the Coronary Microcirculation [PDF]

open access: yesCirculation Research, 2014
Under basal conditions, ≈90% of the resistance to blood flow in the heart occurs in the small arteries and arterioles that make up the coronary microcirculation.1 Microvascular resistance is primarily determined by vessel density and lumen diameter.
Brian R, Weil, John M, Canty
openaire   +2 more sources

Apigenin Protects Hypertensive Intracerebral Hemorrhage by Regulating Trx1 Through Binding to PRDX2

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT Intracerebral hemorrhage (ICH) remains the most severe stroke subtype with high mortality and disability rates. Although apigenin has shown cerebroprotective potential in preclinical studies, its mechanism of action, particularly in hypertensive ICH, remains poorly understood.
Hao‐chen Xu   +6 more
wiley   +1 more source

Impact of stentablation with rotational atherectomy in coronary microcirculatory function

open access: yesClinical Case Reports
Key Clinical Message Stentablation (SA) has been used as a bailout method for undilated, under‐expanded stents, but one reason that SA is associated with a high rate of major adverse cardiac events may be its adverse effect on microcirculation ...
Tatsuya Tabata   +2 more
doaj   +1 more source

Multi‐Target Pharmacological Mechanisms of Salvia miltiorrhiza Bunge in Metabolic Syndrome and Cardiovascular Diseases: A Comprehensive Review Based on the Theory of “Same Treatment for Different Diseases”

open access: yesPhytotherapy Research, EarlyView.
Salvia miltiorrhiza Bunge in metabolic syndrome and cardiovascular diseases: multi‐target actions on shared signaling pathways. ABSTRACT Metabolic syndrome (MetS) represents a clinical disorder characterized by the clustering of conditions including obesity, elevated blood sugar levels, and high lipid levels, which are intricately linked to the onset ...
Zhiyi Jia   +6 more
wiley   +1 more source

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