Differential role of gonadal hormones on kainic acid–induced neurodegeneration in medial amygdaloid nucleus of female and male rats

Neuroscience ◽  
2009 ◽  
Vol 163 (3) ◽  
pp. 952-963 ◽  
Author(s):  
G.L. Pereno ◽  
C.A. Beltramino
Keyword(s):  
Kainic Acid ◽  
Gonadal Hormones ◽  
Male Rats ◽  
Amygdaloid Nucleus ◽  
Medial Amygdaloid Nucleus

The Medial Amygdaloid Nucleus Modifies Social Behavior in Male Rats

1998 ◽  
Vol 63 (2) ◽  
pp. 253-259 ◽  
Author(s):  
C. P Stark ◽  
H. P Alpern ◽  
J Fuhrer ◽  
M. G Trowbridge ◽  
H Wimbish ◽  
...  
Keyword(s):  
Social Behavior ◽  
Male Rats ◽  
Amygdaloid Nucleus ◽  
Medial Amygdaloid Nucleus

Effects of gonadal hormones on the morphology of neurons from the medial amygdaloid nucleus of rats

1999 ◽  
Vol 48 (2) ◽  
pp. 173-183 ◽  
Author(s):  
A.A Rasia-Filho ◽  
R.G Londero ◽  
M Achaval
Keyword(s):  
Gonadal Hormones ◽  
Amygdaloid Nucleus ◽  
Medial Amygdaloid Nucleus

Taste reactivity responses in rats: influence of sex and the estrous cycle

1998 ◽  
Vol 274 (3) ◽  
pp. R718-R724 ◽  
Author(s):  
Sharon N. D. A. Clarke ◽  
Klaus-Peter Ossenkopp
Keyword(s):  
Estrous Cycle ◽  
Gonadal Hormones ◽  
Female Rats ◽  
Male Rats ◽  
Taste Reactivity ◽  
Male And Female ◽  
Food Items ◽  
Reactivity Test ◽  
The Impact

Gonadal hormones (e.g., estradiol) may regulate feeding by producing a shift in the taste or palatability of food items. This study examined the impact of endogenous gonadal hormones on palatability by investigating sex differences in taste responsivity, as well as the effect of the estrous cycle on taste responsivity, in a rodent model. In the taste reactivity test, male and female Long-Evans rats received a brief (1 min) intraoral infusion of one of three tastants: sucrose (0.3 M), quinine (0.0003 M), and a sucrose-quinine mixture (0.3 M sucrose and 0.0003 M quinine). Statistical analyses indicated that female rats tested during diestrus or proestrus produced significantly more ingestive responses than did male rats and fewer aversive responses than did both male rats and female rats tested during estrus or metestrus ( P < 0.05). These results indicate a sex difference in taste responsivity in the rat that is modulated by the reproductive status of female rats. This finding implies a role of gonadal hormones in the regulation of taste responsivity in the rat.

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