Positions
- Assistant Professor
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Medicine-Cardiovascular Sciences
Baylor College of Medicine
Houston, TX US
- Consultant
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Indus Instruments
Houston, Texas United States
Education
- Postdoctoral Fellowship at Baylor College of Medicine
- 03/2001 - Houston, Texas United States
- PhD from Texas A&M University
- 12/1996 - College Station, Texas United States
- MS from University of Akron
- 05/1991 - Akron, Ohio United States
- BE from Osmania University
- 08/1985 - Hyderabad, Telangana India
Honors & Awards
- NIH Research Career Development Award
- 01/2005 - 01/2010
Professional Statement
Dr. Reddy’s research interests include evaluation of cardiac and vascular mechanics in senescent, disease, transgenic, and surgical models of mice. Some of the rodent models he studies include atherosclerosis, dwarf, myocardial infarction/remodeling, pressure overload, hypertension, absent vascular tone, and absent steroid receptor coactivator-1, with the main goal being to translate what is learned in mice to humans for early detection and screening.Using noninvasive methods, such as pulsed Doppler Flow Velocity measurements as well as imaging methods, animals are phenotyped as abnormalities develop and progress, and their cardiovascular system is monitored as it adapts and compensates for the deterioration of function or for missing or over-expressed proteins. The main goal is to translate what is learned in mice to humans for detection and screening of cardiovascular diseases at an early stage when potential therapies can be most effective at preventing disease progression. Dr. Reddy’s research dates back to 1997 when he began working with Dr. Craig Hartley in developing the first Doppler Flow Velocity signal acquisition and processing systems. Using the custom-built sensors and devices the laboratory adapted these measurement techniques from large animals and humans, using them to assess cardiovascular function in mice and other rodents. Over almost two decades Dr. Reddy’s research has included the use of Doppler Flow Velocity measurements (without image guidance) to measure cardiac velocities, blood flow velocities in central and peripheral vessels, coronary flow velocity, stenotic jet velocity, arterial pulse-wave velocity, tail-cuff blood pressure, arterial wall motion, and tissue Doppler. Imaging methods are used when cardiac and vascular dimensions are required, while invasive methods are used mainly to measure aortic, arterial, and left ventricular pressure. Efforts are underway to develop non-invasive indices of aortic impedance and LV systemic load using aortic wall motion and velocity measurements and more recently we have found indications that peak aortic blood acceleration correlates well with left ventricular dp/dtmax potentially removing the need for this invasive measurement as well.
Websites
Selected Publications
- Moudgil R, Samra G, Ko KA, Vu HT, Thomas TN, Luo W, Chang J, Reddy AK, Fujiwara K, Abe J-I "Topoisomerase 2B decrease results in diastolic dysfunction via p53 and Akt: A novel pathway.." Front Cardiovasc Med. 2020 Nov;7:594123. doi: 10.3389/fcvm.2020.594123. Pubmed PMID: 33330654
- Cieslik KA, Sekhar RV, Granillo A, Reddy AK, Medrano G, Heredia CP, Entman ML, Hamilton DJ, Li S, Reineke E, Gupte AA, Zhang A, Taffet GE. "Improved cardiovascular function in old mice after n-acetyl cysteine and glycine supplemented diet: Inflammation and mitochondrial factors.." J Gerontol - A Biol Sci Med Sci. 2018;73(9):1167-1177. Pubmed PMID: 29538624
- Kho J, Tian X, Wong WT, Bertin T, Jiang MM, Chen S, Jin Z, Shchelochkov OA, Burrage LC, Reddy AK, Jiang H, Abo-Zahrah R, Ma S, Zhang P, Bissig KD, Kim JJ, Devaraj S, Rodney GG, Erez A, Bryan NS, Nagamani SCS, Lee BH. "Argininosuccinate lyase deficiency causes an endothelial-dependent form of hypertension.." Am J Human Genet. 2018;103(2):276-287. Pubmed PMID: 30075114
- Salazar BH, Hoffman KA, Reddy AK, Madala S, Birla RK. "16-Channel flexible system to measure electrophysiological properties of bioengineered hearts.." Cardiovasc Engineer Technol. 2018;9(1):94-104. Pubmed PMID: 29150791
- Salazar BH, Hoffman KA, Reddy AK, Madala S, Birla RK. "Noninvasive measurement of EKG properties of 3D artificial heart muscle.." AIMS Cell Tiss Engineer. 2017;1(1):12-30.
- Zhou H, Ran Y, Da Q, Shaw TS, Shang D, Reddy AK, López JA, Ballantyne CM, Ware J, Wu H, Peng Y. "Defective association of the platelet glycoprotein Ib-IX complex with the glycosphingolipid-enriched membrane domain inhibits murine thrombus and atheroma formation.." J Immunol. 2016;197:288-295. Pubmed PMID: 27206768
- Medrano G, Hermosillo-Rodriguez J, Pham T, Granillo A, Hartley CJ, Reddy AK, Osuna PM, Entman ML, Taffet GE. "Left atrial volume and pulmonary artery diameter are noninvasive measures of age-related diastolic dysfunction in mice.." J Gerontol - A Biol Sci Med Sci. 2016;71(9):1141-1150. Pubmed PMID: 26511013
- Hinton AO Jr, Yang Y, Quick AP, Xu P, Reddy CL, Yan X, Reynolds CL, Tong Q, Zhu L, Xu J, Wehrens XH, Xu Y, Reddy AK "SRC-1 Regulates Blood Pressure and Aortic Stiffness in Female Mice." PLoS One. 2016;11(12):e0168644. doi: 10.1371/journal.pone.0168644.. Pubmed PMID: 28006821
- Salazar B, Reddy AK, Tao Z, Madala S, Birla R. "32-channel system to measure the electrophysiological properties of bioengineered cardiac muscle.." IEEE Trans Biomed Engineer. 2015;62(6):1614-1622. Pubmed PMID: 25667345
- Grimes KM*, Reddy AK*, Lindsey ML, Buffenstein R. "And the beat goes on: attenuated cardiovascular aging in the longest-lived rodent, the naked mole-rat.." Am J Physiol Heart and Circ Physiol. 2014;307:H284-H291.. Pubmed PMID: 24906918
- Reddy AK, Hartley CJ, Thuy T. Pham, Darlington G, Entman ML, Taffet GE. "Young Little mice express a premature cardiovascular aging phenotype.." J Gerontol - A Biol Sci Med Sci. 2014;69:152-159. Pubmed PMID: 23682160
- Gurha P, Wang T, Larimore AH, Sassi Y, Abreu-Goodger C, Ramirez MO, Reddy AK, Engelhardt S, Taffet GE, Wehrens XH, Entman ML, Rodriguez A. "MicroRNA-22 promotes heart failure through coordinated suppression of PPAR/ERR-nuclear hormone receptor transcription.." PLoS One. 2013;8(9):e75882. Pubmed PMID: 24086656
- Crossland RF, Durgan DJ, Lloyd EE, Phillips SC, Reddy AK, Marrelli SP, Bryan RM Jr. "A new rodent model for obstructive sleep apnea: Effects on ATP-mediated dilations in cerebral arteries.." Am J Physiol Regul Integ Comp Physiol. 2013;305:R334-R342. Pubmed PMID: 23761641
- Christia P, Bujak M, Gonzalez-Quesada C, Chen W, Dobaczewski M, Reddy AK, Frangogiannis NG "Systematic characterization of cardiac inflammation, repair, and remodeling in a mouse model of reperfused myocardial infarction.." J Histochem Cytochem. 2013;61(8):555-570. Pubmed PMID: 23714783
- Gurha P, Abreu-Goodger C, Wang T, Ramirez MO, Drumond AL, van Dongen S, Chen Y, Bartonicek N, Enright AJ, Lee B, Kelm RJ, Reddy AK, Taffet GE, Bradley A, Wehrens XH, Entman ML, Rodriguez A "Targeted Deletion of MicroRNA-22 Promotes Stress-Induced Cardiac Dilation and Contractile Dysfunction.." Circulation. 2012 Jun 5;125(22):2751-61. Pubmed PMID: 22570371
- Nagamani SC, Campeau PM, Shchelochkov OA, Premkumar MH, Guse K, Brunetti-Pierri N, Chen Y, Sun Q, Tang Y, Palmer D, Reddy AK, Li L, Slesnick TC, Feig DI, Caudle S, Harrison D, Salviati L, Marini JC, Bryan NS, Erez A, Lee B "Nitric-oxide supplementation for treatment of long-term complications in argininosuccinic aciduria.." Am. J. Hum. Genet.. 2012 May 4;90(5):836-46. Pubmed PMID: 22541557
- Lloyd EE, Crossland RF, Phillips SC, Marrelli SP, Reddy AK, Taffet GE, Hartley CJ, Bryan RM "Disruption of K2P6.1 Produces Vascular Dysfunction and Hypertension in Mice.." Hypertension. 2011 Oct;58(4):672-8. Pubmed PMID: 21876070
- Hartley CJ, Reddy AK, Madala S, Entman ML, Michael LH, Taffet GE "Doppler velocity measurements from large and small arteries of mice.." Am. J. Physiol. Heart Circ. Physiol.. 2011 Aug;301(2):H269-78. Pubmed PMID: 21572013
- Erez A, Nagamani SC, Shchelochkov OA, Premkumar MH, Campeau PM, Chen Y, Garg HK, Li L, Mian A, Bertin TK, Black JO, Zeng H, Tang Y, Reddy AK, Summar M, O'Brien WE, Harrison DG, Mitch WE, Marini JC, Aschner JL, Bryan NS, Lee B "Requirement of argininosuccinate lyase for systemic nitric oxide production.." Nat. Med.. 2011;17(12):1619-26. Pubmed PMID: 22081021
- Hartley CJ, Reddy AK, Madala S, Entman ML, Taffet GE "Feasibility of dual Doppler velocity measurements to estimate volume pulsations of an arterial segment.." Ultrasound Med Biol. 2010 Jul;36(7):1169-75. Pubmed PMID: 20620703
- Tovar Perez JE, Heredia CP, Pham TT, Madala S, Hartley CJ, Entman ML, Taffet GE, Reddy AK "Aortic acceleration as a noninvasive index of left ventricular contractility in the mouse.." Scientific Rep. 2021;11:536;doi: 10.1038/s41598-020-79866-y. Pubmed PMID: 33436716
Memberships
- American Heart Association
- Professional Member (01/2005)
- American Association for Laboratory Animal Science
- Member (08/2013)
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