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1 KI YONG CHUNG Ph.D. (Nutrition) 3115A 110 th ST. Lubbock, TX Phone: (806) ext. 245 (Work) (806) (Cell) Fax: (806) CAREER OBJECTIVES My research interests has centered on the metabolism of adipose and muscle tissue development and of energy balance regulation. A major interest of my postdoctoral training is to develop functional analysis of gene(s) or gene regulation related to energy metabolism and trans-differentiation of muscle cell to adipocyte. EDUCATION : Ph.D. in Nutrtion, Dissertation: Stearoyl coenzyme A desaturase gene expression mediates fatty acid composition of adipose tissue from Angus and Wagyu steers fed to U.S. and Japanese endpoint. Texas A&M University, College Station, Texas, USA : M.S. in Nutrition, Thesis: Metabolic regulation of cattle adiposity different breed types using two disparate diets. Texas A&M University, College Station, Texas, USA : M.S. in Animal Science, Thesis: Studies on the expression of obese gene in adipocyte of Hanwoo (korean cattle). Yeungnam University, Daegu, Korea : B.S. in Animal Science, Yeungnam University, Daegu, Korea EXPERIENCE Research Assistant Professor (Jan to present): Department of Animal and Food Science, Texas Tech University, Lubbock, Texas, USA. i) Kemin funded projects titled on Role of AMPK in regional bovine adipocytes by chromium propionate ii) National Cattlemen s Beef Association s funded extend projects titled on Regulation of marbling development in beef cattle by specific fatty acids iii) Pfizer applied projects titled on The role of oleic acid at enhancing adipogenic differentiation of bovine muscle-delived cells trough G protein receptors. Post Doctoral Associate (May 2008 to Dec. 2009): Department of Animal and Food Science, Texas Tech University, Lubbock, Texas, USA. i) Texas Tech Post Doc. Fellow projects titled on Growth promotant enhances fatty acid oxidation through activating AMPKα. ii) Texas Tech Post Doc. Fellow projects titled on GPRs modulated by fatty acid enhance adipogeic differentiation in the muscle-derived cells from cattle or mouse. iii) National Cattlemen s Beef Association s funded projects titled on Regulation of marbling development in beef cattle by specific fatty acids iv) Intervet funded projects titled on The role of retinoic acid at reducing adipogenic differentiation of bovine intramuscular preadipocytes.

2 Post Doctoral Associate (May 2006 to April 2008): Department of Animal Science and Industry, Kansas State University, Manhattan, Kansas, USA. i) USDA funded projects titled on Defining the mechanisms of steroids-enhanced muscle growth in steers: Individual roles of trenbolone acetate, estradiol, and IGF-I. ii) Kansas Beef Council funded projects titled on Conversion of muscle-derived cells from beef cattle to adipocytes (fat cells) in a cell culture model. Research Assistant (September 2002 to May 2006): Department of Animal Science, Texas A&M University, College Station, Texas, USA. Research projects focused on: i) molecular analysis of adiposity related genes (SCD, FAS, PPARγ, C/EBPβ, Pref 1, TNFα, and LPL) in bovine and 3T3-L1 preadipocyte; ii) estimation of SCD gene expression and enzyme activity and lipogenesis for the identification of diet, breed, and time difference in bovine adipose tissue; and iii) demonstration of transdifferentiation of muscle satellite cells to adipocytes in a bovine primary cell culture system. Research Intern Program (May 2000 to April 2001): Sponsored by the Korean Science and Engineering Foundation (KOSEF), Animal Physiology and Endocrinology Lab., Yeungnam University, Institute of Biotechnology, Gyungsan, Korea. Research projects focused on: i) identification and utilization of Korean native domestic animal resources; ii) primary culture of regional adipocytes extracted from rats, pigs, and Korean native cattle; iii) screening of differentiation conditions for preadipocyte primary culture; and iv) estimation of leptin and adipose-related gene expression in bovine species. Visiting scholar (Sept to Dec. 1999): Muscle Biology Lab., Department of Animal Science, Washington State University, Pullman, USA. Research projects focused on: i) identification of myogenic satellite cell proliferation and differentiation; ii) screening of differentiation conditions for satellite cells; and iii) estimation of leptin and adipose related gene expression in sheep. TEACHING ACTIVITIES PATENTS 2010 Summer (Section Instructor): Animal and Food Science in Texas Tech University (ANSC 4400/5400), Advanced Meat Science and Muscle Biology 2009 Fall (Section Instructor): Animal and Food Science in Texas Tech University (ANSC 4400/5400), Advanced Meat Science and Muscle Biology 2008 Fall (Section Instructor): Animal Science and Industry in Kansas State University (ASI 902), Topics in Animal Growth 2010 Bradley J. Johnson and Ki Yong Chung: Enhancement of intramuscular fat (marbling) in beef cattle through the GPR 43 receptor PROFESSIONAL AFFILIATIONS American Society for Animal Science American Society for Nutritional Sciences American Meat Science Association North American Association for the Study of Obesity

3 SERVICES AND COUNSERTING Zilpaterol Hydrochloride: Potential mode of action in Skeletal Muscle, Services for Pharmaceutical Co., Intervet Korea, Seoul, Korea INVITED PRESENTATIONS 2010 Pusan National University, Milyang, Korea Membrane receptor-mediated muscle and adipose development in beef cattle 2010 Choong Buk National University, Chungju, Korea Membrane receptor-mediated muscle and adipose development in beef cattle 2010 Seoul National University, Seoul, Korea Intramuscular adipogenesis in beef cattle 2010 Young Scientist Invitation Lecture, Korean Society of Animal Science and Technology, Jinju, Korea Cellular aspects of Bovine Intramuscular Adipogenesis 2009 National Institute of Animal Science, Rural Development Administration, Suweon, Korea Bovine satellite cells as Precursors of Intramuscular Adipocytes 2009 Chonnam National University, Pukgwangju, Gwangju, Korea Bovine satellite cells as Precursors of Intramuscular Adipocytes 2009 Jinju National University, Chilamdong, Jinju, Gyongnam, Korea Bovine satellite cells as Precursors of Intramuscular Adipocytes 2009 Yeungnam University, Gyeongsan, Gyeongbuk, Korea Bovine satellite cells as Precursors of Intramuscular Adipocytes HONORS AND AWARDS Who s Who in America, Marquis Who s Who Edition st Place at Graduate Student Research Poster Competition, 51 st International Congress of Meat Science and Technology. Baltimore, Maryland, USA st Place at Graduate Student Research Poster Competition, Nutrition and Food Science & Technology Research Symposium, Texas A&M University Intercollegiate Faculty of Nutrition Travel Award, Texas A&M University Intercollegiate Faculty of Nutrition Scholarship, Texas A&M University. PUBLICATIONS Peer-reviewed Manuscripts: Chung, K. Y., Johnson, B, J Postnatal muscle growth and development of beef cattle (Review). Asianaust. J. Anim. Sci. (in preparation) Chung, K. Y., Baxa. T. J., Parr. S. L., Luque. L. D., Johnson, B. J Administration of estradiol (E2), trenbolone acetate (TBA), and TBA/E2 implants alters adipogenic and myogenic gene expression in bovine M. longissmus thoracis. J. Anim. Sci. (in preparation) Choi. S. H., Chung. K. Y., Go. G. W., Choi. C. W., Johnson. B. J., Smith. S. B Trans-10, cis-12 conjugated linoleic acid induces adipogenic gene expression in single and co-cultures of bovine preadipocytes and myoblasts. J. Anim. Sci. (submitted)

4 Parr, S. L., Chung, K. Y., Hutcheson, J. P., Nichols, W. T., Yates, D. A., Streeter, M. N., Swingle. R. S., Galyean, M. L., Johnson, B. J Dose and release pattern of anabolic implants affects growth of finishing beef steers across days on feed. J. Anim. Sci. (submitted) Parr, S. L., Chung, K. Y., Galyean, M. L., Hutcheson, J. P., DiLorenzo, N., Hales, K. E., May, M. L., Quinn, M. J., Smith, D. R., Johnson, B. J Performance of finishing beef steers in response to anabolic implant and zilpaterol hydrochloride supplementation. J. Anim. Sci. (submitted) Miller, E. K., Chung, K. Y., Hutcheson. J. P., Yates, D. A., Smith. S. B., Johnson, B. J Zilpaterol hydrochloride alters abundance of beta-adrenegic receptors in bovine muscle cells and depresses adipocyte lipid metabolism in culture systems. J. Anim. Sci. (submitted) Knetter, S. M., Baxa. T. J., Chung, K. Y., Johnson, B. J., Minton, J. E Circulating insulin-like growth factor-i and indicators of bone and cartilage turnover in steers given trenbolone acetate and estradiol 17- beta alone or in combination. J. Anim. Physiol. Anim. Nutr. (submitted) Walker, D. K., Titgemeyer. E. C., Baxa. T. J., Chung, K. Y., Johnson, D. E., Laudert. S. B., Johnson, B. J Effects of ractopamine and gender on serum metabolites and skeletal muscle gene expression in finishing steers and heifers. J. Anim. Sci. 88: Chung, K. Y., Johnson, B. J Melengestrol acetate enhances adipogenic gene expression in cultured muscle-derived cells. J. Anim Sci. 87: Pampusch. M. S., White. M. E., Hathaway. M. R., Baxa. T. J., Chung. K. Y., Johnson. B. J., Weber. W. J., Dayton. W. R Effects of trenbolone acetate (TBA), Estradiol (E2) and combined TBA/E2 implants on muscle IGF-I, IGF-I receptor, estrogen receptor-α and androgen receptor mrna levels in feedlot steers. J. Anim. Sci. 86: Kamanga-Sollo. E., White. M.E., Chung. K.Y., Johnson. B.J., Dayton. W.R Potential role of G-proteincoupled receptor 30 (GPR30) in estradiol-17[beta]-stimulated IGF-I mrna expression in bovine satellite cell cultures. Domest. Anim. Endocrinol. 35: Kamanga-Sollo. E., White. M. E., Hathaway. M. R., Chung. K. Y., Johnson. B. J., Dayton., W. R Roles of increased IGF-I expressio n and the estrogen, androgen and IGF-I receptors in estradiol-17β and trenbolone acetate- stimulated proliferation of cultured bovine satellite cells. Domest. Anim. Endocrinol. 35: Johnson, B. J., Chung, K. Y Alterations in the physiology of growth of cattle with growth-enhancing compounds. Vet. Clin. Food Anim. 23: Rhoades, R. D., Sawyer, J. E., Chung, K. Y., Schell, M. L., Lunt, D. K., Smith, S. B Effect of dietary energy source on in vitro substrate utilization and insulin sensitivity of muscle and adipose tissue of long-fed Angus and Wagyu steers. J. Anim. Sci. 85: Chung, K.Y., Lunt, D.K., Kawachi, H., Yano, H., Smith, S.B Lipogenesis and stearoyl-coa desaturase gene expression and enzyme activity in adipose tissue of short- and long-fed Angus and Wagyu steers fed corn- or hay-based diets. J. Anim. Sci. 85:

5 Chung, K.Y., Choi, C.B., Kawachi, H., Yano, H., and Smith, S.B Trans-10, cis-12 conjugated linoleic acid down-regulates arginine-promoted differentiation of bovine preadipocytes. Adipocytes 2: Smith, S.B., Lunt, D.K., Chung, K.Y., Choi, C.B., Tume, R.K., Zembayashi, M Review article: Adiposity, fatty acid composition, and delta-9 desaturase activity during growth in beef cattle. Anim. Sci. J. (Jpn.) 77: Chung, K. Y., Lunt, D. K., Choi, C. B., Chae, S. H., Rhoades, R. D., Adams, T. H., Booren, B., Smith, S. B Lipid charanteristics of subcutaneous adipose tissue and M. longissimus thoracis of Angus and Wagyu steers fed to U.S. and Japanese endpoints. Meat Sci. 73: Lunt, D. K., Chung, K. Y., Choi, C. B., Smith, S. B Production characteristics and carcass quality of Angus and Wagyu steers fed to US and Japanese endpoints. J. Anim. Vet. Adv. 4: Smith, S. B., Hively, T. S., Cartese, G. M., Han J. J., Chung, K. Y., Castaneda, P., Gilbert, C. D., Adams, V. L., Mersmann, H. J Conjugated linoleic acid depresses the Δ 9 desaturase index and stearoyl coenzyme A desaturase enzyme activity in porcine subcutaneous adipose tissue. J. Anim. Sci. 80: Chung, K. Y., Park, S. K., Chung, H. J., Choi, C. B Screening of media components to establish optimum conditions for the differentiation of Hanwoo adipocytes. J. Anim. Sci. & Technol. (Kor.) 43: Research Reports, Extension Publications and Proceedings: Tokach. R. J., Chung. K. Y., Johnson. B. J Factors affecting intramuscular adipose tissue development in beef cattle. Certified Angus Beef Association (submitted). Chung, K. Y., Johnson, B. J Cellular Aspects of Bovine Intramuscular Adipogenesis. Proceedings of 2010 Annual Congress of Korean Society of Animal Sciences and Technology (KSAST), pp Johnson, B. J., Chung, K. Y Bovine Satellite Cells as Precursors of Intramuscular Adipocytes. Reciprocal Meat Conference Proceedings. pp American Meat Science Association. Johnson, B. J., Chung, K. Y Current Trends in Satellite Cell Research. Reciprocal Meat Conference Proceedings. Reciprocal Meat Conference Proceedings. Chung, K. Y., Johnson, B. J Cellular aspects of intramuscular adipogenesis: Competition for cells between muscle and marbling. Proc. Plains Nutrition Spring Conference. Pub. AREC Abstracts of Presentations at International, National, and Regional Conferences: Parr. S. L., Galyean. M. L., Chung. K. Y., Hutcheson. J. P., Johnson. B. J Steroidal implants and zilpaterol HCl alter serum urea-n and NEFA responses in finishing beef steers. American Society of Animal Science. Denver. Colorado.

6 Tokach. R. J., Chung. K. Y., Johnson. B. J Zilpaterol HCl enhances adenosine monophosphate-activated protein kinase α (AMPKα) expression in bovine skeletal muscle. American Society of Animal Science. Denver. Colorado. Choi. S. H., Go. G. W., Silvey. D. T., Gilmore. L. A., Chung. K. Y., Johnson. B. J., Wu. G., Smith. S. B Abomasal Direct Infusion of L-Arginine and trnas-10, cis-12 Conjugated Linoleic Acid Affect to Lipogenic Gene Expression and Enzymes Activities in Angus Steers. American Society of Animal Science. Denver. Colorado. Choi. S. H., Chung. K. Y., Go. G. W., Choi. C. W., Johnson. B. J., Smith. S. B Trans-10, cis-12 conjugated linoleic acid induces adipogenic gene expression in single and co-cultures of bovine preadipocytes and myoblasts. American Society of Animal Science. Denver. Colorado. Tokach. R. J., Chung. K. Y., Johnson. B. J Zilpaterol HCL induces phosphorylation of adenosine monophosphate-activated protein kinase a (AMPK a) in the bovine muscle cell cultures. Reciprocal Meat Conference. Lubbock. Texas. Chung. K. Y., Johnson. B. J Oleic acid enhances GPR43 and AMPK in a muscle cell transdifferentiation model. American Society of Nutrition. Anaheim. California. Parr. S. L., Chung. K. Y., Galyean. M. L., Hutcheson. J. P., DiLorenzo. N., Hales. K. E., May. M. L., Quinn. M. J., Smith. D. R., Johnson. B. J Performance of finishing beef steers in response to anabolic implant dose and zilpaterol hydrochloride. Midwest, American Society of Animal Science. Des Moines. Iowa. Johnson. B. J., Chung. K. Y., Parr. S. L., Cellular differentiation: Muscle growth and marbling. American Society of Animal Science. Montreal. Quebec. Canada. Parr. S. L., Chung. K. Y., Hutcheson. J. P., Nichols. W. T., Yates. D. A., Streeter. M. N., Swingle. R. S., Galyean. M. L. Johnson. B. J Dose and release pattern of anabolic implants affects growth in steers. American Society of Animal Science. Montreal. Quebec. Canada. Chung, K. Y., Janota, K. M., Hwang, G. H., Johnson, B. J Oleic acid enhances adipogenic gene expression but reduces AMPKα protein expression in muscle cell culture. Reciprocal Meat Conference. Rogers. Arkansas. Parr, S. L., Chung, K. Y., Hutcheson. J. P., Nichols. W. T., Yates. D. A., Streeter. M. N., Swingle. R. S., Johnson, B. J Dose and Release Pattern of Anabolic Implants Affects Growth of Finishing Beef Steers. Plains Nutrition Council Spring Conference. San Antonio. Texas. Chung, K. Y., Johnson, B. J Melengestrol acetate enhances adipogenic gene expression in an in vitro muscle-derived cell transdifferentiation model. American Society of Animal Science. Indianapolis. Indiana. Kamanga-Sollo. E., White. M. E., Hathaway. M. R., Chung. K. Y., Johnson. B. J., Dayton. W. R Roles of increased IGF-I expression and the estrogen, androgen and IGF-I receptors in estradiol-17β and trenbolone acetate- stimulated proliferation of cultured bovine satellite cells. American Society of Animal Science. Indianapolis. Indiana.

7 Kamanga-Sollo. E., White. M. E., Hathaway. M. R., Chung. K. Y., Johnson. B. J., Dayton. W. R Effects of androgen and estrogen (E2) receptor blockers and E2-conjugated BSA on estrogen and trenbolone acetate-stimulated IGF-I expression in cultured bovine satellite cells. American Society of Animal Science. Indianapolis. Indiana. Pampusch. M. S., White. M. E., Hathaway. M. R., Chung. K. Y., Johnson. B. J., Dayton. W. R Effects of trenbolone acetate (TBA), Estradiol (E2) and combined TBA/E2 implants on muscle IGF-I and IGF-II mrna levels in feedlot steers. American Society of Animal Science. Indianapolis. Indiana. Chung, K. Y., Baxa. T. J., Parr. S. L., Luque. L. D., Johnson. B. J Administration of estradiol (E 2 ), trenbolone acetate (TBA), and TBA/E 2 implants alters adipogenic gene expression in bovine M. longissmus thoracis. Reciprocal Meat Conference. Gainsville. Florida. Parr, S. L., Chung, K. Y., Baxa, T. J., Luque`, L.D., Johnson, B. J Effect of estradiol-17β, trenbolone acetate or the combination on adipogenic gene expression in finishing steers. Plains Nutrition Council Sporing Conference. San Antonio. Texas. p126 Rhoades, R. D., Sawyer, J. E., Chung, K. Y., Lunt, D. K., Smith, S. B Dietary energy source impacts insulin sensitivity in finishing steers. Midwest, American Society of Animal Science. p56 Chung, K. Y., Choi, C. B., Kawachi, H., Yano, H., Smith, S. B Trans-10, cis-12 conjugated linoleic acid down-regulates arginine-promoted differentiation of bovine preadipocyte. North American Association for the Study of Obesity. Vancouver, Canada. Chung, K. Y., Lunt, D. K., Kawachi, H., Yano, H., Smith, S. B Stearoyl coenzyme A desaturase gene expression mediates fatty acid composition of adipose tissue from Angus and Wagyu steers fed to U.S. and Japanese endpoint. Proceedings of 51 st International Congress of Meat Science and Technology. 50, Rhoades, R. D., Vasconcelos, J. T., Lunt, D. K., Sawyer, J. E., Chung, K. Y., Smith, S. B Glycolitic intermediates in muscle and adipose tissue of cattle fed different sources and amount of energy. J. Anim. Sci. Vol. 82, Suppl. 1. p19. Chung, K. Y., Kwon, E. J., Jung, K. K. and Choi, C. B Changes in the expression of leptin gene during differentiation of Hanwoo (Korean Cattle) adipocytes. Proceedings of the 9 th Meeting of Asian- Australasian Animal Production (AAAP) Societies. p290. Chung, K. Y., Park, S. K., Choi, C. W., Jung, K. K., and Choi, C. B Effects of cholesterol and longchain fatty acids in media on the differentiation of Hanwoo (Korean Cattle) adipocytes. Proceedings of the 9 th Meeting of Asian-Australasian Animal Production(AAAP) Societies. p291. Park, S. K., Chung, K. Y., Chung, H. J., and Choi, C. B Studies on the dsexpression of genes responsible for the differentiations of adipocytes depending on fat depots in Hanwoo. Proceedings of Annual Congress of the Korean Society of Animal Science. p97.

8 Chung, K. Y., and Choi, C. B Studies on the expressions of leptin and PPAR genes during development and differentiation of adipocytes in Hanwoo. Proceedings of Annual Congress of the Korean Society of Animal Science. p155.