Research Topics
Genomes and GenesSpecies | Ary L GoldbergerSummaryAffiliation: Harvard University Country: USA Publications
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Publications
What is physiologic complexity and how does it change with aging and disease?Ary L Goldberger
Cardiovascular Division, Department of Medicine, and Margret and H A Rey Laboratory for Nonlinear Dynamics in Medicine, Beth Israel Deaconess Medical Center Harvard Medical School, Boston, MA, USA
Neurobiol Aging 23:23-6. 2002
Fractal dynamics in physiology: alterations with disease and agingAry L Goldberger
Cardiovascular Division and Margret and H A Rey Laboratory for Nonlinear Dynamics in Medicine, Department of Medicine, Beth Israel Deaconess Medical Center Harvard Medical School, Boston, MA 02215, USA
Proc Natl Acad Sci U S A 99:2466-72. 2002..Elucidating the fractal and nonlinear mechanisms involved in physiologic control and complex signaling networks is emerging as a major challenge in the postgenomic era...
Enhancement of sleep stability with Tai Chi exercise in chronic heart failure: preliminary findings using an ECG-based spectrogram methodGloria Y Yeh
Division for Research and Education in Complementary and Integrative Medical Therapies, Harvard Medical School, Boston, MA 02215, USA
Sleep Med 9:527-36. 2008....
Differentiating obstructive from central and complex sleep apnea using an automated electrocardiogram-based methodRobert Joseph Thomas
Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center Boston, MA 02215, USA
Sleep 30:1756-69. 2007..The objective of this study was to assess the utility of an electrocardiogram (ECG)-based cardiopulmonary coupling technique to distinguish obstructive from central or complex sleep apnea...
Statistical physics approach to categorize biologic signals: from heart rate dynamics to DNA sequencesC K Peng
Margret and H A Rey Institute for Nonlinear Dynamics in Medicine, Division of Interdisciplinary Medicine and Biotechnology, Beth Israel Deaconess Medical Center Harvard Medical School, Boston, Massachusetts 02215, USA
Chaos 17:015115. 2007..We use human cardiac interbeat interval time series and DNA sequences as examples to illustrate the applicability of this generic approach to real-world problems...
Prevalent hypertension and stroke in the Sleep Heart Health Study: association with an ECG-derived spectrographic marker of cardiopulmonary couplingRobert Joseph Thomas
Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
Sleep 32:897-904. 2009..This study assesses, at a population level, the associations of this spectrographic biomarker with prevalent cardiovascular disease using the Sleep Heart Health Study (SHHS)-I dataset...
Broken asymmetry of the human heartbeat: loss of time irreversibility in aging and diseaseMadalena Costa
Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
Phys Rev Lett 95:198102. 2005..Loss of time irreversibility may provide a new way of assessing the functionality of living systems that operate far from equilibrium...
Heritability of abnormalities in cardiopulmonary coupling in sleep apnea: use of an electrocardiogram-based techniqueLamia H Ibrahim
Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University Hospitals Case Medical Center, Cleveland, Ohio 44106 6003, USA
Sleep 33:643-6. 2010..We evaluated the familial aggregation of distinctive spectrographic biomarkers of unstable sleep, related to elevated-low frequency cardiopulmonary coupling (e-LFC), to assess their utility in genetic studies...
Heart rate dynamics during three forms of meditationC K Peng
Margret and H A Rey Institute for Nonlinear Dynamics in Physiology and Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
Int J Cardiol 95:19-27. 2004..This study was designed to quantify and compare the instantaneous heart rate dynamics and cardiopulmonary interactions during sequential performance of three meditation protocols with different breathing patterns...
Short-term fasting-induced autonomic activation and changes in catecholamine levels are not mediated by changes in leptin levels in healthy humansJean L Chan
Division of Endocrinology, Diabetes, and Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
Clin Endocrinol (Oxf) 66:49-57. 2007..We evaluated whether inducing hypoleptinaemia (with and without administration of leptin at replacement doses) for 3 days would influence catecholamine levels and sympathetic and parasympathetic activity in healthy humans...
Frailty and the degradation of complex balance dynamics during a dual-task protocolHyun Gu Kang
Institute for Aging Research, Hebrew SeniorLife, 1200 Centre Street, Boston, MA 02131, USA
J Gerontol A Biol Sci Med Sci 64:1304-11. 2009....
Multiscale analysis of heart rate dynamics: entropy and time irreversibility measuresMadalena D Costa
Division of Interdisciplinary Medicine and Biotechnology, Beth Israel Deaconess Medical Center Harvard Medical School, 330 Brookline Avenue, GZ 431, Boston, MA 02215, USA
Cardiovasc Eng 8:88-93. 2008..These new methods, with careful attention to their limitations, may be useful in diagnostics, risk stratification and detection of toxicity of cardiac drugs...
Multiscale entropy analysis of biological signalsMadalena Costa
Margret and H. A. Rey Institute for Nonlinear Dynamics in Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
Phys Rev E Stat Nonlin Soft Matter Phys 71:021906. 2005....
A systems biology approach to studying Tai Chi, physiological complexity and healthy aging: design and rationale of a pragmatic randomized controlled trialPeter M Wayne
Osher Center for Integrative Medicine, Brigham and Women s Hospital and Harvard Medical School, Boston, MA 02215, USA
Contemp Clin Trials 34:21-34. 2013....
Gait unsteadiness and fall risk in two affective disorders: a preliminary studyJeffrey M Hausdorff
Division on Aging, Harvard Medical School, Boston, MA, USA
BMC Psychiatry 4:39. 2004....
Effect of mild, asymptomatic obstructive sleep apnea on daytime heart rate variability and impedance cardiography measurementsJay S Balachandran
Sleep Disorders Research Program, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts, USA
Am J Cardiol 109:140-5. 2012..Further prospective outcomes-based studies are needed to evaluate the applicability of these metrics for noninvasive screening of obese patients with asymptomatic OSA, before the onset of overt cardiovascular disease...
An electrocardiogram-based technique to assess cardiopulmonary coupling during sleepRobert Joseph Thomas
Sleep Unit, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA
Sleep 28:1151-61. 2005..To evaluate a new automated measure of cardiopulmonary coupling during sleep using a single-lead electrocardiographic signal...
PhysioNet: an NIH research resource for complex signalsMadalena Costa
Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
J Electrocardiol 36:139-44. 2003..PhysioNet invites contributions of databases and software from the biomedical community...
Quantifying fractal dynamics of human respiration: age and gender effectsC K Peng
Margret and H. A. Rey Institute for Nonlinear Dynamics in Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
Ann Biomed Eng 30:683-92. 2002....
Multiscale entropy analysis of complex physiologic time seriesMadalena Costa
Cardiovascular Division, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
Phys Rev Lett 89:068102. 2002..We find that MSE robustly separates healthy and pathologic groups and consistently yields higher values for simulated long-range correlated noise compared to uncorrelated noise...
Complex dynamics of human red blood cell flickering: alterations with in vivo agingMadalena Costa
Division of Interdisciplinary Medicine and Biotechnology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
Phys Rev E Stat Nonlin Soft Matter Phys 78:020901. 2008..Quantitative assessment of multiscale flickering may provide a way of measuring RBC functionality. Membrane models need to account for the complex properties of these motions and their changes with in vivo senescence...
Complex patterns of abnormal heartbeatsVerena Schulte-Frohlinde
Center for Polymer Studies, Department of Physics, Boston University, Boston, Massachusetts 02215, USA
Phys Rev E Stat Nonlin Soft Matter Phys 66:031901. 2002..This work introduces methods that can be used to test mathematical models of arrhythmogenesis and to develop a new understanding of underlying electrophysiologic mechanisms of cardiac arrhythmia...
Diurnal and ultradian dynamics of serum adiponectin in healthy men: comparison with leptin, circulating soluble leptin receptor, and cortisol patternsAlina Gavrila
Division of Endocrinology and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
J Clin Endocrinol Metab 88:2838-43. 2003..These data suggest that adiponectin and sOB-R levels might be influenced by common regulatory factors and challenge the notion that cortisol may have a direct inhibitory effect on adiponectin in humans...
Sinus versus nonsinus tachycardia in the emergency department: importance of age and heart rateDuane S Pinto
Cardiovascular Division, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
BMC Cardiovasc Disord 3:7. 2003..The emergency department diagnosis of sinus versus nonsinus tachycardia is an important clinical challenge. The objective of this study was to identify subjects with a high prevalence of nonsinus tachycardia...
Giles f. Filley lecture. Complex systemsAry L Goldberger
Cardiology Division, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, GZ 435, Boston, MA 02215, USA
Proc Am Thorac Soc 3:467-71. 2006..This presentation provides a brief overview of an emerging area of biomedical research, including recent applications to cardiopulmonary medicine and chronic obstructive lung disease...
Genomic classification using an information-based similarity index: application to the SARS coronavirusAlbert C-C Yang
Cardiovascular Division and Margret and H.A. Rey Institute for Nonlinear Dynamics in Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts 02215, USA
J Comput Biol 12:1103-16. 2005..The information based similarity index provides a new tool to measure the similarity between datasets based on their information content and may have a wide range of applications in the large-scale analysis of genomic databases...
Effects of tai chi mind-body movement therapy on functional status and exercise capacity in patients with chronic heart failure: a randomized controlled trialGloria Y Yeh
Division for Research and Education in Complementary and Integrative Medical Therapies, Harvard Medical School, Boston, Massachusetts 02215, USA
Am J Med 117:541-8. 2004..To examine the effects of a 12-week tai chi program on quality of life and exercise capacity in patients with heart failure...
Multimodal pressure-flow method to assess dynamics of cerebral autoregulation in stroke and hypertensionVera Novak
Division of Gerontology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
Biomed Eng Online 3:39. 2004..The autoregulatory dynamics are difficult to assess because of the nonstationarity and nonlinearity of the component signals...
Linguistic analysis of the human heartbeat using frequency and rank order statisticsAlbert C-C Yang
Department of Anesthesiology, Taipei Veterans General Hospital, Taipei, Taiwan
Phys Rev Lett 90:108103. 2003..Furthermore, we observe increased randomness in the heartbeat time series with physiologic aging and pathologic states and also uncover nonrandom patterns in the ventricular response to atrial fibrillation...
Chronic fatigue syndrome and hidden happenings of the heartbeatAry L Goldberger
Clin Auton Res 12:228-30. 2002
Effects of chronic moderate alcohol consumption and novel environment on heart rate variability in primates (Macaca fascicularis)Carol A Shively
Department of Pathology Comparative Medicine, Wake Forest University School of Medicine, Winston Salem, NC 27157 1040, USA
Psychopharmacology (Berl) 192:183-91. 2007..Although alcohol consumption often increases at times of stress, the interactive effects of stress and chronic moderate alcohol consumption on cardiac regulation have not been studied...
The rule of bigeminy revisited: analysis in sudden cardiac death syndromeClaudia Lerma
Department of Physiology, Centre for Nonlinear Dynamics, McGill University, Montreal, Quebec, Canada
J Electrocardiol 40:78-88. 2007..We evaluated these ventricular arrhythmias over extended periods in patients with sudden cardiac death syndrome...
