B E Keefer

Effects of insulin-like growth factor I and insulin on proliferation and on basal and luteinizing hormone-induced steroidogenesis of bovine thecal cells: involvement of glucose and receptors for insulin-like growth factor I and luteinizing hormone.

Robert E. Stewart, L. J. Spicer, T D Hamilton et al. · Journal of Animal Science · 1995 · 156 citations

Life Sciences, Biochemistry, Endocrinology +16

Levels of insulin-like growth factor (IGF) binding proteins, luteinizing hormone and IGF-I receptors, and steroids in dominant follicles during the first follicular wave in cattle exhibiting regular estrous cycles.

Robert E. Stewart, L. J. Spicer, T D Hamilton et al. · Endocrinology · 1996 · 152 citations

Medicine, Animal Sciences, Endocrinology +15

Insulin-Like Growth Factor-Binding Protein-2 and -3: Their Biological Effects in Bovine Thecal Cells1

L. J. Spicer, Robert E. Stewart, Pilar Álvarez et al. · Biology of Reproduction · 1997 · 37 citations · Full text

Life Sciences, Biochemistry, Endocrinology +11

Insulin-like growth factor I enhancement of steroidogenesis by bovine granulosa cells and thecal cells: dependence on de novo cholesterol synthesis

L. J. Spicer, T D Hamilton, B E Keefer · Journal of Endocrinology · 1996 · 31 citations

Life Sciences, Biochemistry, Endocrinology +17

Ovarian function in nutritionally induced anoestrous cows: effect of exogenous gonadotrophin-releasing hormone <i>in vivo</i> and effect of insulin and insulin-like growth factor I <i>in vitro</i>

T D Hamilton, J.A. Vizcarra, R. P. Wettemann et al. · Reproduction · 1999 · 17 citations · Full text

Agriculture, Animal Sciences, Endocrinology +17