Education
BS in Biology from UC Irvine
MS in Nutrition and Ecology from Cornell University.
PhD in Human Nutrition from Cornell University
Postdoctoral training at Buffalo General Hospital
Profile
Dr. Horvath has taken a circuitous pathway to his current research interests and present location. After growing up in Santa Barbara during the 60’s and 70’s, he went to the University of California at Irvine when it was still in the middle of a cattle ranch. He received his BS in Biology with specialization in Ecology and Systematics. His undergraduate research was on defensive secondary plant compounds and the herbivore (insect) interaction. To move up to larger animals, Dr Horvath traveled to Upstate New York and went to graduate school at Cornell University in Ithaca. The subjects of his next research were larger –his M.S. thesis was on the Nutritional Ecology of White-tailed Deer. Getting closer to home, he shifted again doing a PhD dissertation on Dietary Fiber Analysis and Human Colonic Fermentation. After a post-doc with Dr Milton Weiser and Michael Duffy on large intestinal nutrient absorption and electrophysiology at the University at Buffalo, he joined the faculty of the Nutrition Program. Since being in the Nutrition Program, which is now part of the Department of Exercise and Nutrition Sciences, his teaching have focused on carbohydrate nutrition, exercise nutrition, general education undergraduate nutrition and lectures on nutrition to medical students. He is actively involved in distance learning and international education with the UB program at Singapore Institute of Management. His research has evolved into the area of exercise nutrition as it relates to cardiovascular health and athletic performance (endurance, cognition and injury prevention) and prevention of cancer, specifically prostate. Dr. Horvath’s research on dietary fat and exercise performance has been extensively covered in the lay press. He has adjunct appointments in Department of Physiology and Biophysics and the School of Nursing
Research Interests
- Effect of carbohydrate and fat on the exercise performance
- Studies involve indirect calorimetry, RQ, dietary and activity measurements, blood metabolite and hormone/regulator measurements and biomechanical assessments. Studies have been done on runners, dancers, soccer players and non-athletes.
- Cardiovascular Risk Factors and dietary fat in men and women.
- Studies involve exercise training, blood lipid (TG, lipoproteins, apoproteins, etc.) assays, dietary manipulations with noninvasive biomarkers.
- Vitamin D’s effect on physical activity and performance in all age groups and performance levels.
- Antioxidant supplementation (including Vitamin D and tocopherols) on progression and development of prostate cancer.
Selected Publications
- Horvath, PJ, AB Awad, and MS Andersen, 1993 Differential effect of butyrate on lipids of human colon cancer cells, Nutr. and Cancer 20:283-291.
- Muoio, DM, JJ Leddy, PJ Horvath, AB Awad, and DR Pendergast, 1994 Effect of dietary fat on metabolic adjustments to maximal VO2 and endurance in runners, Med. Sci. Sports and Exerc. 26:81-88.
- Leddy, JJ, PJ Horvath, J Rowland, and DR Pendergast, 1997 Effect of a high or a low fat diet on cardiovascular risk factors in male and female runners, Med. Sci. Sports Exerc., 29(1): 17-25.
- Venkatraman, JT, JA Rowland, E DeNardin, PJ Horvath, and DR Pendergast, 1997 Influence of the level of dietary lipid intake and maximal exercise on the immune status in runners, Med. Sci. Sports Exerc., 29(3):333-344.
- Horvath, PJ, H Shuihaibar, CS Fink, and AB Awad, 1997 Dietary fiber, not fat, alters the activity of phospholipase D in rat large intestine. Nutrition and Cancer, 27(2):143-149.
- Hoppleler, H, R Billeter, PJ Horvath, JJ Leddy, and DR Pendergast, 1999 Muscle structure with low and high fat diets in well trained male runners. International Journal of Sports Medicine. 20(8):522-526.
- Horvath, PJ, CK Eagen, SD Ryer-Calvin and DR Pendergast, 2000 The effects of varying dietary fat on the nutrient intake in male and female runners, J. Amer. College Nutr., 19(1):42-51.
- Horvath, PJ, CK Eagen NM Fisher, JL Leddy and DR Pendergast, 2000 The effects of varying dietary fat on performance and metabolism in trained male and female runners, J. Amer. College Nutr., 19(1):52-60.
- Gerlach, KE, SC White, HW Burton, JM Dorn, JJ Leddy and PJ HOrvath. Kinetic changes with fatigue and relationship to injury in female runners. Med. Sci. Sports Exerc. 2005
- Santo, A.S., Cunningham, A.M., Alhassan, S., Browne, R.W., Burton, H., Leddy, J.J., Grandjean, P.W., Horvath, S.M., Horvath, P.J. (2008). NMR Analysis Does Not Increase Sensitivity to the Effect of Soy Protein on CVD Risk When Compared to the Traditional Lipid Profile. Applied Physiology, Nutrition and Metabolism, 33 (3): 489-500.
- Gerlach, K., Burton, H. W., Dorn, J. M., Leddy, J. J., Horvath, P. J. (2008). Fat intake and injury in female runners. Journal of the International Society of Sports Nutrition, 5, 1-8
- LoBue-Estes, C, PJ Horvath, H Burton, JJ Leddy and B Willer, (2008) Exhaustive exercise affects cognitive function in trained and untrained women, Percept. Mot. Skills, 107, 933-945
- Santo, AS, AM Santo, RW Browne, HW Burton, JJ Leddy, SM Horvath, PJ Horvath Postprandial Lipemia Detects the Effect of Soy Protein on Cardiovascular Disease Risk Compared with the traditional lipid profile. Lipids 2010;(45)12:1127-1138
Selected Abstracts (2007-2011)
- Shah, D, Brown, J.K., Browne, R.W., Horvath, P., Tyrpak, D.A., Wilding, G.E., & Rittenhouse-Olson, K. (2011, February). Response to antioxidant dietary supplements during radiotherapy for prostate cancer. Annual Meeting of the American College of Radiation Oncology, San Diego, CA.
- Galavan E, Crotin RL, Williams BT, Ramsey DK, Kozlowski KF, Hatch D, Wilding GE, Horvath PJ, The Effects of Carbohydrate- or Fluid-Restriction on Physical and Cognitive Performance of Collegiate Wrestlers, Experimental Biology, Washington DC, 2011
- Backes T, and PJ Horvath, The effect of exercise intensity and fluid restriction on cognitive function and salivary measures in Division III male and female endurance athletes Experimental Biology, Washington, DC, 2011
- Rosney, D, Williams, B., Burton, H., Leddy, JJ, Willer, B. Horvath, P.J Cognitive function after endurance exercise: a comparison between Gatorade® and a placebo, Experimental Biology, Anaheim, 2010
- Bartalone, R.L., Brown, J.K., Browne, R.W., Wilding, G.E., Tyrpak, D.A Horvath, P., dietary antioxidant intakes relate to plasma antioxidant levels in prostate cancer patients undergoing radiotherapy, American College of Nutrition, Annual Meeting in Orlando, Florida, October 1-4, 2009
- Lo Bue-Estes , C, PJ Horvath, HS. Burton, JJ Leddy, BS Willer (2008) Changes in cognitive function during and following short-term maximal aerobic exercise in young women. American College of Sports Medicine, 55nd Annual Meeting, June, Indianapolis IN
- Winters, J., Browne, R. W., Burton, H. W., Dorn, J. M., Leddy, J. J., Horvath, P. J., Postprandial lipemia in fit vs. Unfit males, American College of Nutrition Annual Meeting, Orlando, FL. (October 2007).
Professional Affiliations
American College of Nutrition, Fellow
American Nutrition Society, Member
American Physiology Society, Member
American College of Sports Nutrition, Member
Certifications
Certified Nutrition Specialist
Certified Dietitian/Nutritionist, NY State
Activities
Co Chair, American College of Sports Medicine, Special Interest Group on Exercise and Cancer
Board Member, NY State Education, Board of Dietetics and Nutrition
University at Buffalo Service
Middle States Accreditation
Supervisor of Nutrition Counseling for Division of Athletics
Faculty Senate, Budget Priorities Committee
Online Learning Committee
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