Results 71 to 80 of about 2,650,139 (381)

Relationship between fibre orientation and tensile strength of natural collagen membranes for heart valve leaflets [PDF]

, 2011
Heart valve prostheses are used to replace native heart valves which that are damaged because of congenital diseases or due to ageing. Biological prostheses made of bovine pericardium are similar to native valves and do not require any anticoagulation ...
Alvarez, L., Atienza Riera, José Miguel, Bourges, Jean Yves, Garcia Paez, J.M., Guinea Tortuero, Gustavo V., Rojo Pérez, Francisco Javier   +5 more
core   +1 more source

Cytokine expression profile of native heart valves obtained from patients with infective endocarditis

Медицинская иммунология
Infectious endocarditis is characterized by dysfunction of heart valves and contribute significantly to the cardiovascular morbidity and mortality worldwide, especially in low- and middle-income countries. Immune response is playing the important role in
A. V. Sinitskaya, M. Yu. Sinitsky, Ya. V. Kazachek, A. V. Evtushenko, M. V. Khutornaya, M. A. Asanov, A. O. Poddubnyak, A. V. Ponasenko   +7 more
doaj   +1 more source

EVALUATION OF THE LOCAL PROFILE OF CYTOKINES EXPRESSED BY NATIVE HEART VALVES OBTAINED FROM PATIENTS WITH ACQUIRED HEART DEFECTS

Байкальский медицинский журнал, 2023
Doing. The pathogenesis of acquired heart defects is a complex process involving many different factors. One of the triggers for the development of dysfunctions of native heart valves can be an inflammatory process caused by various types of pathogens ...
Anna Victorovna Sinitskaya, Maksim Yurievich Sinitsky, Maria Vladimirovna Khutornaya, Anastasia Valerievna Ponasenko   +3 more
doaj   +1 more source

Contribution of Extra‐Cardiac Cells in Murine Heart Valves is Age‐Dependent

Journal of the American Heart Association : Cardiovascular and Cerebrovascular Disease, 2017
Background Heart valves are dynamic structures that open and close over 100 000 times a day to maintain unidirectional blood flow during the cardiac cycle.
Lindsey J Anstine, Tori E. Horne, E. Horwitz, J. Lincoln   +3 more
semanticscholar   +1 more source

A Vertically‐Stacked Optoelectronic Sensor for Localized Hemodynamics Monitoring

Advanced Functional Materials, EarlyView.
This work introduces a hemodynamics monitoring sensor that features vertically stacked microLEDs and a heterogeneously integrated photodetector. The vertically stacked microLEDs enable localized measurements, and by designing the interoptode distance according to the depth of the target region, this vertically stacked optoelectronic sensor is ...
Taeyeon Lee, Jieun Jung, Hyeongoh Park, Dongwuk Jung, Doyune Kim, Changeui Hong, Seungbeom Kang, Hyunsoo Kim, Tae Kim, Jongho Lee   +9 more
wiley   +1 more source

Innovative Modeling of Outcome in Cardiac Surgery [PDF]

, 2013
In the normal heart both left and right ventricle have a valve at the atrio-ventricular connection and at the ventriculo-arterial connection. In the left ventricle the inflow valve is the mitral valve and the outflow valve is the aortic valve.
Mokhles, M.M. (Mostafa)
core   +1 more source

Transthoracic three-dimensional echocardiography for the assessment of straddling tricuspid or mitral valves [PDF]

, 2008
Background The advent of 3D echocardiography has provided a technique which, potentially, could afford significant additional information over conventional cross-sectional echocardiography in the assessment of patients with straddling atrioventricular ...
Anderson, RH, Ho, SY, Lincoln, C, Vogel, M   +3 more
core   +1 more source

Composition and Resulting Band Alignment at the TiO2/InP Heterointerface: A Fundamental Study Combining Photoemission Spectroscopy and Theory

Advanced Functional Materials, EarlyView.
The chemical composition and band alignment are systematically investigated at the TiO2/InP heterointerface. Thin TiO2 films are deposited by ALD on atomically ordered, P‐terminated p‐InP(100). By combining UPS, XPS, and ab initio molecular dynamics, the atomistic structure and electronic alignment are revealed.
Mohammad Amin Zare Pour, Muhammad Nawaz Qaisrani, Christian Höhn, Johannes Laurenz Wolf, Negin Mogharehabed, Jennifer Velazquez Rojas, Wolfram Jaegermann, Erich Runge, Roel van de Krol, Thomas Hannappel, Christian Dreßler, Agnieszka Paszuk   +11 more
wiley   +1 more source

Nanopatterned acellular valve conduits drive the commitment of blood-derived multipotent cells [PDF]

, 2016
Considerable progress has been made in recent years toward elucidating the correlation among nanoscale topography, mechanical properties, and biological behavior of cardiac valve substitutes.
Aguiari, Paola, Barbon, Silvia, Bertalot, Thomas, Conconi, MARIA TERESA, DI LIDDO, Rosa, Gandaglia, Alessandro, Gerosa, Gino, Iop, Laura, Mandoli, Amit, Parnigotto, PIER PAOLO, Schrenk, Sandra, Tasso, Alessia   +11 more
core   +2 more sources

Structural evolution of mechanical heart valves (review)

Вестник трансплантологии и искусственных органов
Prosthetic heart valves are widely used biomedical devices. The need for these prostheses is increasing due to the increasing life expectancy of the general population and the consequent incidence of age-related degenerative valvular defects.
M. A. Lepilin, A. V. Bogachev-Prokophiev, М. О. Zhulkov, D. S. Khvan, D. A. Sirota, A. G. Makaev, A. V. Protopopov, A. S. Grenadyorov, Kh. A. Agaeva, A. М. Chernyavskiy   +9 more
doaj   +1 more source