Paul Tsang

Professor of Molecular, Cellular and Biomedical Sciences

Ph.D. Boston University, 1986

Research Areas

Reproductive physiology of elasmobranchs (sharks and skates); steroid hormone function

Research Emphasis

My primary area of research is the reproductive biology of elasmobranch fishes, sharks and skates. My focus is to use multiple biochemical/molecular/morphometric endpoints, e.g. blood and tissue steroid hormone concentrations, gonadal dynamics and reproductive tract dynamics, to study the biology of reproduction. In addition, our work also includes other assessments of elasmobranch life history parameters, such as age and growth, movement patterns (using pop-up satellite technology) and population structure (using microsatellite and mitochondrial DNA). Our group includes undergraduate and graduate students, and research collaborators from the Marine Science Center at the University of New England.

Courses Taught

  • ANSC/MICR/PBIO 751/851: Cell Culture
  • ANSC 714/814: Research Methods in Endocrinology
  • ANSC 901: Introduction to Research  
  • INCO 501H: Research Process in the Biological Sciences


Zhang, B., Yan, L., Moses, M.A., and Tsang, P.C.W. Bovine membrane-type 1 matrix metalloproteinase: molecular cloning and expression in the corpus luteum. Biol Reprod 2002; 67:99-106.

Towle, T.A., Tsang, P.C.W, Milvae, R.A., Newbury, M., and McCracken, J.A. Dynamic in vivo changes in tissue inhibitors of metalloproteinases 1 and 2, and matrix metalloproteinases 2 and 9, during prostaglandin F2 alpha-induced luteolysis in sheep. Biol Reprod 2002; 66:1515-1521.

Townson, D.H., Tsang, P.C.W., Butler, W.R., Frajblat, M., Griel, L.C. Jr., Johnson, D.J., Milvae, R.A., Niksic, G.M., and Pate, J.L. Relationship of fertility to ovarian follicular waves before breeding in dairy cows. J Anim Sci 2002; 80:1053-1058.

Goldberg, M.J., Moses, M.A., and Tsang, P.C.W.. Identification of matrix metalloproteinases and metalloproteinase inhibitors in bovine corpora lutea and their variation during the estrous cycle. J Anim Sci 1996; 74:849-857.

Ahmad, N,. Beam, S.W., Butler, W.R., Deaver, D.R., Duby, R.T., Elder, D.R., Fortune, J.E., Griel, L.C. Jr., Jones, L.S., Milvae, R.A., Pate, J.L., Revah I., Schreiber, D.T. Jr, Townson, D.H., and Tsang, P.C.W., Inskeep, E.K. Relationship of fertility to patterns of ovarian follicular development and associated hormonal profiles in dairy cows and heifers. J Anim Sci 1996; 74:1943-1952.

Tsang, P.C.W, Poff, J.P., Boulton, E.P., and Condon, W.A. Four-day-old bovine corpus luteum: progesterone production and identification of matrix metalloproteinase activity in vitro. Biol Reprod 1995; 53:1160-1168.

Tsang, P.C.W. and Callard, I.P. Regulation of ovarian steroidogenesis in vitro in the viviparous shark, Squalus acanthias. J Exp Zool 1992; 261:97-104.

Callard, I.P., Fileti, L.A., Perez, L.E., Sorbera, L.A., Giannoukous, G., Klosterman, L.L., Tsang, P., and McCracken, J.A. Role of the corpus luteum and progesterone in the evolution of vertebrate viviparity. Amer Zool 1992; 32:264-275.


University of New Hampshire
Department of Molecular, Cellular and Biomedical Sciences
207 Kendall Hall
129 Main Street
Durham, NH 03824

Research Areas: 
Genetics and Reproduction
Marine Biology