Article
Cardiac & Cardiovascular Systems
Thassio Mesquita, Rui Zhang, Jae Hyung Cho, Rui Zhang, Yen-Nien Lin, Lizbeth Sanchez, Joshua Goldhaber, Joseph K. Yu, Jialiu A. Liang, Weixin Liu, Natalia A. Trayanova, Eugenio Cingolani
Summary: Chronotropic incompetence and sinoatrial node (SAN) dysfunction are common problems in patients with heart failure, but the underlying mechanisms are not yet fully understood. This study identified intrinsic abnormalities in SAN structure and function as the cause of chronotropic incompetence in heart failure patients with preserved ejection fraction (HFpEF).
Article
Pharmacology & Pharmacy
Samuel J. Bose, Matthew J. Read, Emily Akerman, Rebecca A. Capel, Thamali Ayagama, Angela Russell, Derek A. Terrar, Manuela Zaccolo, Rebecca A. B. Burton
Summary: Atrial arrhythmias, such as atrial fibrillation, are a major risk for mortality and stroke. This study found that AC1 is involved in the response of atrial tissue and cells to alpha-adrenoceptor stimulation and IP3R calcium release.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
Yufan Yang, Yuan Yuan, Johnson Wong, Michael C. Fishbein, Peng-Sheng Chen, Thomas H. Everett
Summary: It was found that stimulation of the right stellate ganglion (RSG) could increase local nerve activity at the sinoatrial node (SAN), accelerate sinus rate, and alter early activation sites in the heart. High-density mapping revealed that bursts of intrinsic nerve activity at the SAN occurred before each atrial activation during heart rate acceleration induced by RSG stimulation.
CIRCULATION-ARRHYTHMIA AND ELECTROPHYSIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Tanya A. Baldwin, Yong Li, Autumn N. Marsden, Susanne Rinne, Anibal Garza-Carbajal, Roland F. R. Schindler, Musi Zhang, Mia A. Garcia, Venugopal Reddy Venna, Niels Decher, Thomas Brand, Carmen W. Dessauer
Summary: The establishment of macromolecular complexes by scaffolding proteins is crucial for the local production of cAMP and subsequent cAMP signaling necessary for cardiac functions. In this study, the researchers discovered a novel AC scaffold protein called POPDC1, which regulates heart rate control through its binding to the TREK-1 potassium channel. Furthermore, the activity of AC9 is required for the formation of the TREK-1:AC9:POPDC1 complex and the reversal of POPDC1's enhancement of TREK-1 currents.
Article
Cell Biology
Sajida Parveen, Paddy H. S. Cheah, Luke P. I. Worthington, Roseanna A. Smither, Michelle L. Munro, Carol T. Bussey, Regis R. Lamberts, Peter P. Jones
Summary: Diabetic patients often have impaired heart rate control due to changes in HCN4 expression and function in the sinoatrial node (SAN). In this study, lower intrinsic heart rate was observed in type 2 diabetic rat hearts, which was attributed to decreased HCN4 protein expression and impaired HCN4 function. The findings provide a novel understanding of the intrinsic mechanisms underlying altered heart rate control in type 2 diabetes.
MOLECULAR AND CELLULAR BIOCHEMISTRY
(2023)
Review
Biochemistry & Molecular Biology
Richard B. Robinson, Wen Dun, Penelope A. Boyden
Summary: This article reviews research over the past three decades on the contribution of the pacemaker current, If, to basal and autonomically regulated spontaneous rate in the sinoatrial node, as well as its relation to Ca homeostasis. Studies included the use of mice with knocked out Ca-sensitive adenylyl cyclase isoforms, showing the distinct influence of these isoforms on the pacemaker current and L-type Ca current.
PROGRESS IN BIOPHYSICS & MOLECULAR BIOLOGY
(2021)
Article
Chemistry, Analytical
Michael Hanzelka, Jiri Dan, Zoltan Szabo, Zdenek Roubal, Premysl Dohnal, Radim Kadlec
Summary: This study examines the impact of solar activity on the human nervous system, particularly how it affects heart rate variability through changes in the low-level electromagnetic field. The results suggest that variations in solar activity can lead to alterations in heart rate variability, potentially contributing to sudden deaths and heart failures.
Article
Health Care Sciences & Services
Chuen-Ru Liu, Terry B. J. Kuo, Jwo-Huei Jou, Chun-Ting Lai Lai, Yu-Kai Chang, Yiing Mei Liou
Summary: Exposure to bright morning light (BML) can regulate the body's circadian rhythms and improve sleep quality. This study focused on the impact of BML exposure on the autonomic nervous system in elderly women at night. The results showed that BML exposure increased parasympathetic nervous system activity and improved cognitive function. These findings suggest that BML therapy may be beneficial for alleviating cognitive decline.
Article
Multidisciplinary Sciences
Lu Ren, Raghavender R. Gopireddy, Guy Perkins, Hao Zhang, Valeriy Timofeyev, Yankun Lyu, Daphne A. Diloretto, Pauline Trinh, Padmini Sirish, James L. Overton, Wilson Xu, Nathan Grainger, Yang K. Xiang, Elena N. Dedkova, Xiao-Dong Zhang, Ebenezer N. Yamoah, Manuel F. Navedo, Phung N. Thai, Nipavan Chiamvimonvat
Summary: SAN dysfunction in heart failure (HF) is well documented, but the underlying mechanisms are not completely understood. This study demonstrates that alterations in the mitochondria-SR microdomains contribute to SAN dysfunction in HF, providing insights into the role of mitochondria-SR microdomains in SAN automaticity and potential therapeutic targets for HF patients.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Cell Biology
Audra N. Iness, Keyur M. Shah, Rakesh C. Kukreja
Summary: Ivabradine is a pharmacologic agent that regulates heart rate by inhibiting the funny current in the sinoatrial node. It has the potential to be used in the treatment of heart failure, but its ability to reduce mortality has not been definitively proven. In addition, ivabradine can also modulate the renin-angiotensin-aldosterone system, sympathetic activation, and endothelial function.
MOLECULAR AND CELLULAR BIOCHEMISTRY
(2023)
Article
Psychiatry
Raizel M. Frasier, Thatiane De Oliveira Sergio, Phillip A. Starski, Angela J. Grippo, F. Woodward Hopf
Summary: This study investigates sex differences in anxiety-related autonomic mechanisms by examining heart rate (HR) and heart rate variability (HRV) in food-restricted adult rats during novelty suppression of feeding. The results show that females have higher baseline HR and lower sympathetic nervous system (SNS) indicators, which is consistent with human findings. Females with higher baseline HR displayed delayed first approach to the center, while males with lower SNS indicators spent more time in the brightly-lit center. Females with lower SNS indicators consumed more food, while a high-SNS subpopulation of males consumed no food. Among consumers, males with greater SNS ate more food.
FRONTIERS IN PSYCHIATRY
(2023)
Article
Cardiac & Cardiovascular Systems
Tristan W. Dorey, Martin Mackasey, Hailey J. Jansen, Megan D. McRae, Loryn J. Bohne, Yingjie Liu, Darrell D. Belke, Logan Atkinson, Robert A. Rose
Summary: NPR-B receptor plays an essential physiological role in maintaining normal heart rate and sinoatrial node function by modulating ion channel function in sinoatrial node myocytes via a cGMP/PDE3/cAMP signaling mechanism.
CARDIOVASCULAR RESEARCH
(2022)
Article
Pharmacology & Pharmacy
Kayla Johnson, Alexis Doucette, Alexis Edwards, Aleeya Verdi, Ryan McFarland, Shelby Hulke, Amanda Fowler, Val J. Watts, Amanda H. Klein
Summary: This study found that reducing the activity or expression of adenylyl cyclase 1 can attenuate morphine tolerance and hypersensitivity, as well as provide relief for inflammatory pain.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Physiology
Motahareh Moghtadaei, Tristan W. Dorey, Robert A. Rose
Summary: Nonlinear analyses of heart rate variability can quantify the unpredictability, fractal properties, and complexity of heart rate, providing valuable information about cardiovascular health. The Multi-Scale Multi-Fractal Detrended Fluctuation Analysis algorithm is applicable to short time series and robust to noise and nonstationarity, enabling the assessment of HRV at different scales and fractal dynamics. The fractal properties of HRV depend on both the autonomic nervous system activity and intrinsic sinoatrial node function, and evaluating multi-fractality at different time scales is an effective approach for HRV assessment.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
Tristan W. Dorey, Megan D. Mcrae, Darrell D. Belke, Robert A. Rose
Summary: This study found that hypertensive heart disease in mice results in impaired heart rate responses to sympathetic nervous system activation. This impairment is caused by up-regulation of PDE4D and reduced effects of cAMP on spontaneous action potential firing in sinoatrial node myocytes.
CARDIOVASCULAR RESEARCH
(2023)
Review
Cardiac & Cardiovascular Systems
Maria Cristina Florio, Alessandra Magenta, Edward G. Lakatta, Maurizio C. Capogrossi
CURRENT PROBLEMS IN CARDIOLOGY
(2020)
Article
Clinical Neurology
Ganesh Chauhan, Hieab H. H. Adams, Claudia L. Satizabal, Joshua C. Bis, Alexander Teumer, Muralidharan Sargurupremraj, Edith Hofer, Stella Trompet, Saima Hilal, Albert Vernon Smith, Xueqiu Jian, Rainer Malik, Matthew Traylor, Sara L. Pulit, Philippe Amouyel, Bernard Mazoyer, Yi-Cheng Zhu, Sara Kaffashian, Sabrina Schilling, Gary W. Beecham, Thomas J. Montine, Gerard D. Schellenberg, Olafur Kjartansson, Vilmundur Gudnason, David S. Knopman, Michael E. Griswold, B. Gwen Windham, Rebecca F. Gottesman, Thomas H. Mosley, Reinhold Schmidt, Yasaman Saba, Helena Schmidt, Fumihiko Takeuchi, Shuhei Yamaguchi, Toru Nabika, Norihiro Kato, Kumar B. Rajan, Neelum T. Aggarwal, Philip L. De Jager, Denis A. Evans, Bruce M. Psaty, Jerome I. Rotter, Kenneth Rice, Oscar L. Lopez, Jiemin Liao, Christopher Chen, Ching-Yu Cheng, Tien Y. Wong, Mohammad K. Ikram, Sven J. van der Lee, Najaf Amin, Vincent Chouraki, Anita L. DeStefano, Hugo J. Aparicio, Jose R. Romero, Pauline Maillard, Charles DeCarli, Joanna M. Wardlaw, Maria del C. Valdes Hernandez, Michelle Luciano, David Liewald, Ian J. Deary, John M. Starr, Mark E. Bastin, Susana Munoz Maniega, P. Eline Slagboom, Marian Beekman, Joris Deelen, Hae-Won Uh, Robin Lemmens, Henry Brodaty, Margaret J. Wright, David Ames, Giorgio B. Boncoraglio, Jemma C. Hopewell, Ashley H. Beecham, Susan H. Blanton, Clinton B. Wright, Ralph L. Sacco, Wei Wen, Anbupalam Thalamuthu, Nicola J. Armstrong, Elizabeth Chong, Peter R. Schofield, John B. Kwok, Jeroen van der Grond, David J. Stott, Ian Ford, J. Wouter Jukema, Meike W. Vernooij, Albert Hofman, Andre G. Uitterlinden, Aad van der Lugt, Katharina Wittfeld, Hans J. Grabe, Norbert Hosten, Bettina von Sarnowski, Uwe Voelker, Christopher Levi, Jordi Jimenez-Conde, Pankaj Sharma, Cathie L. M. Sudlow, Jonathan Rosand, Daniel Woo, John W. Cole, James F. Meschia, Agnieszka Slowik, Vincent Thijs, Arne Lindgren, Olle Melander, Raji P. Grewal, Tatjana Rundek, Kathy Rexrode, Peter M. Rothwell, Donna K. Arnett, Christina Jern, Julie A. Johnson, Oscar R. Benavente, Sylvia Wasssertheil-Smoller, Jin-Moo Lee, Quenna Wong, Braxton D. Mitchell, Stephen S. Rich, Patrick F. McArdle, Mirjam I. Geerlings, Yolanda van der Graaf, Paul I. W. de Bakker, Folkert W. Asselbergs, Velandai Srikanth, Russell Thomson, Rebekah McWhirter, Chris Moran, Michele Callisaya, Thanh Phan, Loes C. A. Rutten-Jacobs, Steve Bevan, Christophe Tzourio, Karen A. Mather, Perminder S. Sachdev, Cornelia M. van Duijn, Bradford B. Worrall, Martin Dichgans, Steven J. Kittner, Hugh S. Markus, Mohammad A. Ikram, Myriam Fornage, Lenore J. Launer, Sudha Seshadri, W. T. Longstreth, Stephanie Debette
Article
Medicine, General & Internal
Alessandro P. Delitala, Angelo Scuteri, Edoardo Fiorillo, Edward G. Lakatta, David Schlessinger, Francesco Cucca
JOURNAL OF CLINICAL MEDICINE
(2019)
Review
Cardiac & Cardiovascular Systems
Oliver Monfredi, Edward G. Lakatta
CARDIOVASCULAR RESEARCH
(2019)
Article
Multidisciplinary Sciences
Nikita V. Orlov, Cristopher Coletta, Freekje van Asten, Yong Qian, Jun Ding, Majd AlGhatrif, Edward Lakatta, Emily Chew, Wai Wong, Anand Swaroop, Edoardo Fiorillo, Alessandro Delitala, Michele Marongiu, Ilya G. Goldberg, David Schlessinger
Article
Cardiac & Cardiovascular Systems
Olga V. Fedorova, Artem V. Fadeev, Yulia N. Grigorova, Courtney A. Marshall, Valentina Zernetkina, Nikolai I. Kolodkin, Natalia I. Agalakova, Alexandra O. Konradi, Edward G. Lakatta, Alexei Y. Bagrov
JOURNAL OF CARDIOVASCULAR PHARMACOLOGY
(2019)
Article
Cardiac & Cardiovascular Systems
Matt T. Oberdier, Christopher H. Morrell, Edward G. Lakatta, Luigi Ferrucci, Majd AlGhatrif
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2019)
Editorial Material
Multidisciplinary Sciences
Stuart R. G. Calimport, Barry L. Bentley, Claire Stewart, Graham Pawelec, Angelo Scuteri, Manlio Vinciguerra, Cathy Slack, Danica Chen, Lorna W. Harries, Gary Marchant, G. Alexander Fleming, Michael Conboy, Adam Antebi, Garry W. Small, Jesus Gil, Edward G. Lakatta, Arlan Richardson, Clifford Rosen, Karoly Nikolich, Tony Wyss-Coray, Lawrence Steinman, Thomas Montine, Joao Pedro de Magalhaes, Judith Campisi, George Church
Article
Cardiac & Cardiovascular Systems
Yongqing Zhang, Wen Wei, Victoria Shilova, Natalia N. Petrashevskaya, Valentina I. Zernetkina, Yulia N. Grigorova, Courtney A. Marshall, Rachel C. Fenner, Elin Lehrmann, William H. Wood, Kevin G. Becker, Edward G. Lakatta, Alexei Y. Bagrov, Olga V. Fedorova
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2019)
Article
Geriatrics & Gerontology
Jessie E. Axsom, Alay P. Nanavati, Carolyn A. Rutishauser, Janet E. Bonin, Jack M. Moen, Edward G. Lakatta
Article
Cardiac & Cardiovascular Systems
Hu Qingxun, Zhang Huiliang, Nicolas Gutierrez Cortes, Wu Dan, Wang Pei, Zhang Jing, Julie A. Mattison, Eric Smith, Lisa F. Bettcher, Wang Mingyi, Edward G. Lakatta, Sheu Shey-Shing, Wang Wang
CIRCULATION RESEARCH
(2020)
Article
Geriatrics & Gerontology
Edward G. Lakatta, Danilo AlunniFegatelli, Christopher H. Morrell, Edoardo Fiorillo, Marco Orru, Alessandro Delitala, Michele Marongiu, David Schlessinger, Francesco Cucca, Angelo Scuteri
JOURNAL OF THE AMERICAN MEDICAL DIRECTORS ASSOCIATION
(2020)
Article
Multidisciplinary Sciences
Mereena George Ushakumary, Mingyi Wang, V Harikrishnan, Allen Sam Titus, Jing Zhang, Lijuan Liu, Robert Monticone, Yushi Wang, Julie A. Mattison, Rafael de Cabo, Edward G. Lakatta, Shivakumar Kailasam
Article
Cardiac & Cardiovascular Systems
Olga V. Fedorova, Victoria Y. Shilova, Valentina Zernetkina, Ondrej Juhasz, Wen Wei, Edward G. Lakatta, Alexei Y. Bagrov
Summary: In this study, it was found that vascular smooth muscle cells (VSMC) from old rats exhibited heightened sensitivity to the profibrotic effect of marinobufagenin due to downregulation of ANP/cGMP/PKG-dependent signaling. The reduction in vascular PKG1 and cGMP signaling with age resulted in the loss of the ability of ANP to oppose the inhibitory effect of marinobufagenin on NKA and fibrosis development.
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2023)