Research
Interests
I am a Research Associate Professor in Dr. Sisk's Laboratory. My particular research interest is in the effects of steroid hormones and neurogenesis on brain development during puberty. Two hypothalamic nuclei related to reproductive function are the sexually dimorphic nucleus of the preoptic area (SDN) and the anteroventral periventricular nucleus (AVPV). The AVPV is larger in females than in males; the reverse is true of the SDN. We are investigating whether gonadal hormones and neurogenesis contribute to sex differences in the (AVPV) and (SDN) volume in rats.
Our recent data indicate that there are new cells added to the AVPV and SDN during puberty. The addition of these cells is a hormone and sex-dependent process. The sex difference in cell addition during puberty may contribute to the maintenance of the sex difference in SDN volume and to the development and maintenance of the sex difference in AVPV volume.
Selected
Publications
Search all publications in the NCBI Jornal Database
Ahmed, E.I., B. H. Lorenz, K. M. Schulz, J. L. Zehe, L. L. Doncarlos, C. L. Sisk (2006). Sex differences in neurogenesis during puberty in the rat hypothalamus. Program No.152.2. 2006 Abstract Viewer/Itinerary Planner, Atlanta GA: Society for Neuroscience, 2006.
Richardson, H.N., Nelson L.A., Ahmed E.I., Parfitt D. B., Romeo R. D., and. Sisk C. L (2004). Female pheromones stimulate release of luteinizing hormone and testosterone without altering GnRHmRNA in adult male Syrian hamsters (Mesocicetus auratus). General and Comparative Endocrinology 138: 211-217.
Ahmed, I., Shryne J.E., Gorski R.A., Branch B.J. and Taylor AN. (1991). Prenatal ethanol and the prepubertal sexually dimorphic nucleus of the preoptic area. Physiol. Behavior 49: 427-432.
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Eman
Ahmed 