نتایج جستجو برای: san

تعداد نتایج: 37890  

Journal: :Circulation 2014
Qing Lou Brian J Hansen Olga Fedorenko Thomas A Csepe Anuradha Kalyanasundaram Ning Li Lori T Hage Alexey V Glukhov George E Billman Raul Weiss Peter J Mohler Sándor Györke Brandon J Biesiadecki Cynthia A Carnes Vadim V Fedorov

BACKGROUND Although sinoatrial node (SAN) dysfunction is a hallmark of human heart failure (HF), the underlying mechanisms remain poorly understood. We aimed to examine the role of adenosine in SAN dysfunction and tachy-brady arrhythmias in chronic HF. METHODS AND RESULTS We applied multiple approaches to characterize SAN structure, SAN function, and adenosine A1 receptor expression in contro...

Journal: :Estudios Humanísticos. Filología 2015

Journal: :Int. J. Digital Earth 2014
Ming-Hsiang Tsou Ick Hoi Kim Sarah Wandersee Daniel Lusher Li An Brian H. Spitzberg Dipak Gupta Jean Mark Gawron Jennifer Smith Jiue-An Yang Su Yeon Han

Mapping ideas from cyberspace to realspace: visualizing the spatial context of keywords from web page search results Ming-Hsiang Tsou a , Ick-Hoi Kim a , Sarah Wandersee a , Daniel Lusher a , Li An a , Brian Spitzberg b , Dipak Gupta c , Jean Mark Gawron d , Jennifer Smith e , Jiue-An Yang a & Su Yeon Han a a Department of Geography, San Diego State University, San Diego, CA, USA b School of Co...

2014
Klaus Gramann Tzyy-Ping Jung Daniel P. Ferris Chin-Teng Lin Scott Makeig

1 Psychology and Ergonomics, Biological Psychology and Neuroergonomics, Berlin Institute of Technology, Berlin, Germany 2 Center for Advanced Neurological Engineering, University of California San Diego, San Diego, CA, USA 3 Institute for Neural Computation, University of California San Diego, San Diego, CA, USA 4 Institute of Engineering in Medicine, University of California San Diego, San Die...

2015
Thomas A. Csepe Anuradha Kalyanasundaram Brian J. Hansen Jichao Zhao Vadim V. Fedorov

Heart rhythm is initialized and controlled by the Sinoatrial Node (SAN), the primary pacemaker of the heart. The SAN is a heterogeneous multi-compartment structure characterized by clusters of specialized cardiomyocytes enmeshed within strands of connective tissue or fibrosis. Intranodal fibrosis is emerging as an important modulator of structural and functional integrity of the SAN pacemaker c...

2015
Vivian Colón-López Ana Patricia Ortiz Lizbeth Del Toro-Mejías María DaCosta

*Cancer Control and Population Sciences Program, University of Puerto Rico Comprehensive Cancer Center, San Juan, PR; †Department of Health Services Administration, Graduate School of Public Health, University of Puerto Rico Medical Sciences Campus, San Juan, PR; ‡Department of Biostatistics and Epidemiology, Graduate School of Public Health, University of Puerto Rico Medical Sciences Campus, S...

Journal: :The Geographical Journal 1920

Journal: :Circulation 2009
Yung-Hsin Yeh Brett Burstein Xiao Yan Qi Masao Sakabe Denis Chartier Philippe Comtois Zhiguo Wang Chi-Tai Kuo Stanley Nattel

BACKGROUND Sinoatrial node (SAN) dysfunction is frequently associated with atrial tachyarrhythmias (ATs). Abnormalities in SAN pacemaker function after termination of ATs can cause syncope and require pacemaker implantation, but underlying mechanisms remain poorly understood. This study examined the hypothesis that ATs impair SAN function by altering ion channel expression. METHODS AND RESULT...

2014
Angelo Clemenzi-Allen Sanjiv Baxi Alice Gahbauer Brandon Imp Daniel Deck Sarah Doernberg Henry F. Chambers

Presentation in Patients with Staphylococcus aureus Bacteremia Angelo Clemenzi-Allen, MD; Sanjiv Baxi, MS, MD, MPH; Alice Gahbauer, PharmD; Brandon Imp; Daniel Deck, PharmD; Sarah Doernberg, MD; Henry F. Chambers, MD; Medicine, University of California San Francisco, San Francisco, CA; University of Michigan Health System, Ann Arbor, MI; Pharmacy, University of Pittsburgh, Pittsburgh, PA; Medic...

2014
Judith Harbertson Paul Scott Paul Graf Lisa Kennemur Matthew Jamerson Brent House Melinda Balansay-Ames Chris A. Myers Gary Brice Braden Hale

Screening for Asymptomatic Neisseria gonorrhoeae, Chlamydia trachomatis, and Trichomonas vaginalis Infection using De-identified Urine Samples Received by the Navy Drug Screening Laboratory, San Diego Judith Harbertson, PhD, MPH; Paul Scott, MD, MPH; Paul Graf, PhD; Lisa Kennemur, PhD; Matthew Jamerson, PhD; Brent House, PhD; Melinda Balansay-Ames, BS; Chris A. Myers, PhD; Gary Brice, PhD; Brad...

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