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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Is corticosterone involved in the reproductive processes of the male lizard, Podarcis sicula sicula?

Corticosterone (B) and testosterone (T) plasma levels and the effects of short (1-48 min) and long (6-192 hr) confinement stress during the various phases of the reproductive period of the male lizard, Podarcis sicula sicula, were studied; in addition, the in vitro effects of B on the T secretion by testis and adrenals were evaluated. Plasma B was highest during the mating phase and plasma T was highest during the aggressive phase. Confinement stress caused an increase of B plasma levels within 12 min of capture and a decrease in plasma T within 48 min of capture; B increase and T decrease continued for 48 hr, but, after 192 hr of confinement, the levels of these two steroids became similar to those found a few minutes after capture. The basal release of T by the tests and of B and T by adrenals mirrored the trends seen in the systemic circulation. In in vitro experiments B treatment decreased T by testis and adrenal tissue release in aggressive and mating phases. These data suggest that B could involved in the reproduction of P. s. sicula by acting on T synthesis to reduce aggressive behavior and allow breeding.[1]

References

  1. Is corticosterone involved in the reproductive processes of the male lizard, Podarcis sicula sicula? Manzo, C., Zerani, M., Gobbetti, A., Di Fiore, M.M., Angelini, F. Hormones and behavior. (1994) [Pubmed]
 
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