Population Medicine & Diagnostic Sciences


Advancing the health and well-being of animals and people


Advancing the health and well-being of animals and people


Advancing the health and well-being of animals and people


Advancing the health and well-being of animals and people


Advancing the health and well-being of animals and people


Advancing the health and well-being of animals and people

Ned J. Place


NedplaceAssociate Professor
Department of Population Medicine & Diagnostic Sciences
Endocrinology Section, Animal Health Diagnostic Center
College of Veterinary Medicine
Cornell University
Ithaca, NY 14853
Tel: (607) 253-3796
Fax: (607) 253-4213

Research Interests:
My principal area of interest is mammalian reproductive biology, with a focus on the life history trade-offs associated with the timing of hormone secretion and reproductive effort. I study the effects of photoperiod and melatonin on female reproductive aging in Siberian hamsters. I am also a collaborator on the Berkeley Spotted Hyena Project at the University of California, where I study sexual differentiation and mating behavior of naturally masculinized female mammals. I pursue basic research that is integrative and comparative, while also being biomedically and ecologically relevant.

For more information, please view the Place Lab web site.


  • B.S. - 1982 State University of New York, Albany - Biology
  • M.D. - 1987 University of Rochester - Medicine
  • Ph.D.. - 2000 University of Washington - Zoology

Certifications and Licenses:

  • Board Certification in Obstetrics and Gynecology 1993-2003

Honors and Awards:

  • Medical Student Oncology Fellowship, Hammersmith Hospital, London, UK 1985
  • Excellence in Endoscopy Award, American Association of Gynecologic Laparoscopists 1991
  • Fellow, American College of Obstetricians and Gynecologists 1993 - 2003
  • Richard C. Snyder Award in Zoology, University of Washington 1997
  • National Research Service Award, Individual NRSA Postdoctoral Fellowship 2001 - 2004
  • Best Trainee Poster Award, Society for Behavioral Neuroendocrinology 2003
  • National Institute on Aging, Summer Training Course in Experimental Aging Research, Selected Participant and Travel Award 2005
  • American Federation for Aging Research, Travel Award to AFAR Conference Seeking Biomarkers of Aging and Diseases of Aging 2007

Research and Professional Experience:

  • 1987 - 1991 Resident, Obstetrics/Gynecology, University of Connecticut Health Sciences Center
  • 1991 - 1995 Obstetrician/Gynecologist, Ob-Gyn Associates, Waynesboro, VA
  • 1997- 2000 Clinical Instructor, Obstetrics and Gynecology, University of Washington
  • 2000 - 2004 Postdoctoral Fellow, University of California, Berkeley
  • 2004 - 2011 Assistant Professor, Cornell University, Department of Population Medicine & Diagnostic Sciences
  • 2004 - present Director, Endocrinology Section, Animal Health Diagnostic Center
  • 2011 - present Associate Professor, Cornell University, Department of Population Medicine & Diagnostic Sciences

Professional Society Memberships

  • American Association for the Advancement of Science
  • American Society of Mammalogists
  • Society for Behavioral Neuroendocrinology
  • Society for Integrative and Comparative Biology
  • Society for the Study of Reproduction

Selected Publications: (* denotes undergraduate researcher)

  1. Place NJ, Tuthill CR, Schoomer EE*, Tramontin AD, and Zucker I. (2004). Short day lengths delay reproductive aging. Biol Reprod 71:987-992.
  2. Glickman SE, Cunha GR, Drea CM, Conley AJ and Place NJ. (2006). Mammalian sexual differentiation: lessons from the spotted hyena. Trends Endocrinol Metab 17:349-356. (Featured on the cover)
  3. Kabithe EW and Place NJ. (2008). Photoperiod-dependent modulation of anti-Müllerian hormone in female Siberian hamsters, Phodopus sungorus. Reproduction 135:335-342.
  4. Place NJ and Cruickshank J. (2009). Graded response to short photoperiod during development and early adulthood in Siberian hamsters and the effects on reproduction as females age. Horm Behav. 55:390-397. (Featured on the cover)
  5. Phalen AN*, Wexler R*, Park S-U, Cruickshank J, and Place NJ. (2010). Photoperiod-induced differences in uterine growth in Phodopus sungorus are evident at an early age when serum estradiol and uterine estrogen receptor levels are not different. Comp Biochem Physiol A. 155:115-121. (A.N.P. and R.W. contributed equally to this publication)
  6. Place NJ and Cruickshank J. (2010). Short photoperiod initiated during adulthood sustains reproductive function in older female Siberian hamsters more effectively than does short photoperiod before puberty. Biol Reprod. 82:778-782.
  7. Place NJ, McGowan CM, Lamb SV, Schanbacher BJ, McGowan TW, and Walsh DM. (2010). Seasonal variation in serum concentrations of selected metabolic hormones in horses. J Vet Intern Med. 24:650-654.
  8. Place NJ, Coscia EM, Dahl NJ, Drea CM, Holekamp KE, Roser JF Sisk CL, Weldele ML, and Glickman SE. (2011). The anti-androgen combination, flutamide plus finasteride paradoxically suppressed LH and androgen concentrations in pregnant spotted hyenas, but not in males. Gen Comp Endocrinol. 170:455-459.
  9. Place NJ, Hansen BS, Cheraskin J-L, Cudney SE*, Flanders JA, Newmark AD, Barry B, and Scarlett JM. (2011). Measurement of serum anti-Müllerian hormone concentrations in female dogs and cats before and after ovarihysterectomy. J Vet Diag Invest 23:524-527.
  10. Almeida J, Ball BA, Conley AJ, Place NJ, Liu IKM, Scholtz EL, Mathewson L, Stanley SD, and Moeller BC. (2011). Biological and clinical significance of anti-Müllerian hormone determination in blood serum of the mare. Theriogenology 76:1393-1403.
  11. Schwacke LH, Zolman ES, Balmer BC, DeGuise S, George RC, Hoguet J, Hohn AA, Kucklick JR, Lamb S, Levin M, Litz JA, McFee WE, Place NJ, Townsend FI, Welss RS, and Rowles TK. (2011). Anemia, hypothyroidism, and immune suppression associated with polychlorinated biphenyl exposure in bottlenose dolphins (Tursiops truncatus) Proc Roy Soc B 279:48-57.
  12. Zysling DA, Park S-U, McMillan EL*, and Place NJ. (2012). Photoperiod-gonadotropin mismatches induced by treatment with acyline or FSH in Siberian hamsters: impacts on ovarian structure and function. Reproduction 144:603-616.
  13. Cudney SE* and Place NJ. (2012). Effects of sex and scotorefractory state on obesity induced by photostimulation and serum leptin in Siberian hamsters (Phodopus sungorus). Gen Comp Endocrinol 179:428-435.