This is a program-project which encompasses a broadly based confederation of interrelated cardiopulmonary research projects dealing with impaired blood and tissue oxygenation and the pathophysiological consequences thereof. Scientific emphasis is focused on pulmonary gas exchange and myocardial oxygen delivery, with the myocardial effort including a multifaceted assault on the difficult barriers to our understanding and treatment of coronary artery disease. Sub-programs include: """"""""Coronary Circulation in Normal and Abnormal States"""""""" focusing on the evaluation of heterogeneous myocardial perfusion, including assessment of regional perfusion; """"""""Kinetics of Gas Exchange in the Lung and Tissues"""""""" investigating the mechanism an kinetics of the Haldane effect, as well a studying the speed of the Bohr shift in the intact erythrocyte; """"""""Factors Influencing Distribution of Ventilation"""""""", having as its primary goal the determination of the distribution of ventilation-perfusion ratios from steady-state measurements of intrapulmonary elimination of several inert gas tracers; and """"""""Comparative Electrophysiological Behavior of Atrial Specialized Fibers and Purkinje Fiber; Electrogenic Basis for Positive Chronotropic Effects of Cardiac Glycosides"""""""".

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Program Projects (P01)
Project #
5P01HL015194-15
Application #
3097524
Study Section
Heart, Lung, and Blood Research Review Committee A (HLBA)
Project Start
1977-09-01
Project End
1987-08-31
Budget Start
1986-09-01
Budget End
1987-08-31
Support Year
15
Fiscal Year
1986
Total Cost
Indirect Cost
Name
State University of New York at Buffalo
Department
Type
Schools of Medicine
DUNS #
038633251
City
Buffalo
State
NY
Country
United States
Zip Code
14260
Rajagopalan, S; Dube, S; Canty Jr, J M (1995) Regulation of coronary diameter by myogenic mechanisms in arterial microvessels greater than 100 microns in diameter. Am J Physiol 268:H788-93
Canty Jr, J M; Smith Jr, T P (1995) Adenosine-recruitable flow reserve is absent during myocardial ischemia in unanesthetized dogs studied in the basal state. Circ Res 76:1079-87
Canty Jr, J M; Schwartz, J S (1994) Nitric oxide mediates flow-dependent epicardial coronary vasodilation to changes in pulse frequency but not mean flow in conscious dogs. Circulation 89:375-84
Canty Jr, J M (1993) Measurement of myocardial perfusion by fast computed tomography. Am J Card Imaging 7:309-16
Mates, R E (1993) The coronary circulation. J Biomech Eng 115:558-61
Satoh, S; Klocke, F J; Canty Jr, J M (1993) Tone-dependent coronary arterial-venous pressure differences at the cessation of venous outflow during long diastoles. Circulation 88:1238-44
Canty Jr, J M (1993) Methods of assessing coronary blood flow and flow reserve. Am J Card Imaging 7:222-32
Mates, R E; Judd, R M (1993) Models for coronary pressure-flow relationships. Adv Exp Med Biol 346:153-61
Smith Jr, T P; Canty Jr, J M (1993) Modulation of coronary autoregulatory responses by nitric oxide. Evidence for flow-dependent resistance adjustments in conscious dogs. Circ Res 73:232-40
Farhi, E R; Klocke, F J; Mates, R E et al. (1991) Tone-dependent waterfall behavior during venous pressure elevation in isolated canine hearts. Circ Res 68:392-401

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