… in seasonal changes … seasonal changes is that increasing day lengths in the spring result
in testicular recrudescence and associated increases in the release of the sex steroid hormone …

… was to follow seasonal changes in the serum concentrations of several gonadal steroids in
the … This study describes for the first time the changes in plasma steroid hormones (E2, T, 17,…

… In this study, we report the levels of sex steroid hormones (… ) and correlate these levels with
seasonal observations of mating … hormones can influence levels of reproductive hormones (…

… Effects of soltriol on dorsal raphe neurons may be responsible for seasonal changes in …
Stumpf WE: Steroid hormones and the cardiovascular system. Direct actions of estradiol, …

… regulation mechanisms such as changes in local hormone synthesis and receptor abundance
… about seasonal changes in steroid hormone receptor abundance in relation to seasonal …

… In this investigation, serum steroid hormones such as … present study revealed that changes
in levels of steroid hormones, (E2) … Seasonal changes in circulating levels of gonadal steroid …

… The purpose of the present study was to characterize some of the major endocrine changes
… Annual and periovulatory changes in gonadal steroid hormones as well as thyroid hormones…

… the time at which the sex change occurs we have measured … , describe only the seasonal
hormonal changes, but we have … for the role of gonadal steroid hormones in sex change in the …

… When gonadectomy affects seasonal changes in LH levels, treatment with gonadal steroids
… ewes, oestradiol replacement regenerates the appropriate seasonal pattern of LH secre¬ tion…

… Many investigators have studied seasonal changes in the plasma levels of steroid hormones1,2)
… to clarify annual changes in plasma levels of GtH and steroid hormones in the goldfish …