Results 81 to 90 of about 42,729 (266)

Effects of stenotic aortic valve on the left heart hemodynamics: a fluid-structure-electrophysiology approach [PDF]

arXiv, 2021
The aortic valve is a three-leaflet passive structure that, driven by pressure differences between the left ventricle and the aorta, opens and closes during the heartbeat to ensure the correct stream direction and flow rate. In elderly individuals or because of particular pathologies, the valve leaflets can stiffen thus impairing the valve functioning ...
arxiv  

Repair in traumatic ascending aortic rupture and valve insufficiency [PDF]

, 2004
An 18-year-old patient who had chronic traumatic ascending aortic lesion and valve insufficiency, with severe LV dysfunction, was treated by repair of the aortic wall without prosthesis and of the aortic valve by a gluteraldehyde-treated autologous ...
Antunes, MJ, Antunes, PE, Prieto, D, Silva, R   +3 more
core   +1 more source

Metal–Organic Frameworks: Unlocking New Frontiers in Cardiovascular Diagnosis and Therapy

Advanced Science, EarlyView.
Metal–organic frameworks (MOFs), are composed of metal ions and bridging organic ligands, are recognized as an excellent platform for host‐gust chemistry. Its rich structural composition, modifiable sites, and multilevel pore distribution can provide delivery and release of signaling molecules, probes, and therapeutic drugs, which exhibit great medical
Qilu Wu, Yuxiao Feng, Mathilde Lepoitevin, Meng Yu, Christian Serre, Jun Ge, Yuan Huang   +6 more
wiley   +1 more source

Experimental Investigation of Aortic Pressure Variations Following a Simulated Thoracic Impact [PDF]

arXiv, 2021
Blunt traumatic aortic rupture is a heart injury that can occur in falls, automobile accidents, and sporting injuries involving impact to the thorax. Despite its severity and high morbidity rate, the research still does not provide a consistent description of the mechanism of rupture. In this study, a crash testing dummy with an in vitro pumping heart,
arxiv  

Turner syndrome and associated problems in turkish children: A multicenter study [PDF]

, 2015
Objective: Turner syndrome (TS) is a chromosomal disorder caused by complete or partial X chromosome monosomy that manifests various clinical features depending on the karyotype and on the genetic background of affected girls.
Abacı, A., Abalı, S., Adal, E., Akın, L., Akıncı, A., Akyürek, N., Andıran, N., Anık, A., Atabek, M.E., Ataş, A., Aydın, B.K., Açıkel, C., Baş, F., Baş, S., Baş, V.N., Bereket, A., Binay, Ç., Bolu, S., Bondy, C., Bulan, K., Büyükinan, M., Can, H.D., Cinaz, P., Darcan, Ş., Darendeliler, F., Demir, K., Demirbilek, H., Demirel, F., Doğan, D., Doğan, M., Döneray, H., Dündar, B., Eklioğlu, B.S., Emeksiz, H.C., Ercan, O., Eren, E., Ersoy, B., Evliyaoğlu, O., Fidancı, K., Gökşen, D., Gül, D., Gürbüz, F., Hatun, Ş., Kaba, S., Kara, C., Karagüzel, G., Keskin, M., Kızılay, D., Orbak, Z., Pirgon, Ö., Polat, A., Poyrazoğlu, Ş., Sarı, E., Sağlam, H., Tarım, Ö., Tepe, D., Topaloğlu, A.K., Turan, S., Yeşilkaya, E., Yüksel, B., Çakır, E.D., Çatlı, G., Çelik, N., Çizmecioğlu, F., Ökten, A., Önal, H., Özbek, M.N., Özen, S., Özgen, T., Özhan, Bayram, Özkan, B., Ünüvar, T., Şen, Y., Şimşek, E.   +73 more
core   +1 more source

Pyruvate Carboxylase in Macrophages Aggravates Atherosclerosis by Regulating Metabolism Reprogramming to Promote Inflammatory Responses Through the Hypoxia‐Inducible Factor‐1 Signaling Pathway

Advanced Science, EarlyView.
This study investigates the role of macrophage pyruvate carboxylase (PC) in atherosclerosis (AS) demonstrating that PC upregulation in macrophages promotes metabolism reprogramming to enhance inflammatory responses via the HIF‐1 signaling pathway.
Ling‐Na Zhao, Rui‐Ling Wang, Ran‐Xin Liu, Meng‐Ru Zheng, Li Zhao, Bao‐Feng Li, Jia‐Le Li, De‐Shen Liu, Xiao‐Xia He, Qin‐Bao Peng, Kai Li, Tian‐Xiao Lin, Ying‐Ying Liu, Sheng‐Ping He, Jun Lu, Shao‐Yi Zheng, Xiu Liu, Fang‐Ze Huang   +17 more
wiley   +1 more source

Decursin‐Loaded Nanovesicles Target Macrophages Driven by the Pathological Process of Atherosclerosis

Advanced Science, EarlyView.
This study presents decursin, a traditional Chinese medicine monomer, that inhibits lipid accumulation and inflammation in atherosclerosis through PKCδ interaction. A novel targeted delivery system (ALD@EM) is developed to overcome decursin's short half‐life, combining antibody‐mediated targeting, LDL‐facilitated chemotaxis, and enhanced macrophage ...
Hui Chen, Yifeng Zhang, Mirenuer Aikebaier, Yawei Du, Yan Liu, Qing Zha, Lan Zheng, Shuyao Shan, Yanping Wang, Jiawei Chen, Yiping Li, Ke Yang, Ying Yang, Wenguo Cui   +13 more
wiley   +1 more source

Quadricuspid aortic valve associated with aortic insufficiency contributors

Annals of Cardiac Anaesthesia, 2019
A 51-year-old male presented with a wound in his right hand that was suspicious for possible septic emboli of cardiac origin. With transesophageal echocardiography, the patient was found to have a rare quadricuspid aortic valve.
Nicholas Paul Suraci, Bryan Kerner, Salomon Poliwoda, Orlando Santana, Gerald Rosen   +4 more
doaj   +1 more source

Fluid dynamics of aortic root dilation in Marfan syndrome [PDF]

Journal of Biomechanics, 47, (2014) 3120-3128, 2014
Aortic root dilation and propensity to dissection are typical manifestations of the Marfan Syndrome (MS), a genetic defect leading to the degeneration of the elastic fibres. Dilation affects the structure of the flow and, in turn, altered flow may play a role in vessel dilation, generation of aneurysms, and dissection.
arxiv  

Modified Glucose-Insulin-Potassium Regimen Provides Cardioprotection With Improved Tissue Perfusion in Patients Undergoing Cardiopulmonary Bypass Surgery [PDF]

, 2020
Background Laboratory studies demonstrate glucose-insulin-potassium (GIK) as a potent cardioprotective intervention, but clinical trials have yielded mixed results, likely because of varying formulas and timing of GIK treatment and different clinical ...
Chen, Wensheng, Cui, Qin, Gao, Feng, Li, Jia, Liu, Jincheng, Ma, Xin-Liang, Wan, Yi, Yi, Dinghua, Yu, Shiqiang, Zhang, Yue, Zhao, Bijun, Zhao, Kun, Zhao, Rong   +12 more
core   +1 more source