SHORT
COMMUNICATION
Measurement
of Leptin and Insulin-like Growth Factor-I in
Seminal Plasma from Different Species
B.
R. LACKEY, S. L. GRAY, D. M. HENRICKS
Endocrine Physiology Laboratory, Department of
Animal and Veterinary Science, Clemson
University, Clemson, USA
Received July 17, 2001
Accepted October 21, 2001
Summary
The multi-functional proteins,
insulin-like growth factor-I (IGF-I) and leptin
were present in seminal plasma from different
species. Concentrations of IGF-I in equine and
porcine semen were 20 and 17.5 ng/ml,
respectively. Seminal plasma concentrations of
leptin were 1 ng/ml in human and 11 ng/ml in
porcine samples.
Key
words
Leptin
· Semen · Reproduction · Insulin-like growth
factor
Reprint
requests
Brett R. Lackey, Endocrine Physiology Laboratory,
Department of Animal and Veterinary Science,
Poole Agriculture Building, Box 340361, Clemson
University, Clemson, SC 29634, USA, e-mail: blackey@clemson.edu
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