Effects of estrogen and progesterone on tolerance to thermal stress

Analysis of variance showed that female Harlan Sprague-Dawley rats treated with E in combination with P (EP) had a significantly higher rectal temperature (Tre) than untreated control animals and those treated with E or P alone. In E treated rats, Tre was significantly higher than control animals and those treated with P; All treatment groups had a significantly lower tail skin temperature as compared to the control animals. The rise in Tre in E and EP treated rats did not appear to result from an increase in metabolism since the rates of oxygen consumption did not differ significantly with hormone treatment. The rise in Tre of E and EP treated rats may have resulted from a decrease in heat loss as evidenced by the lower tail skin temperatures. Hormonal treatment did not impair the animal's thermoregulatory responses during acute heat and cold exposure. However, body weight was highest in P treated rats. The body weight of EP treated rats was also greater than the control animals and those treated with E alone.

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Biological Science

Grantor dc:publisher

University of Nevada, Las Vegas

Year

1989

Author dc:creator

• Lyon, Kris Alan

Contributors dc:contributor

• Mohamed K. Yousef

Statement dc:rights

• IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Language dc:language

English

Identifier

https://oasis.library.unlv.edu/rtds/78

OAI identifier oai:identifier

oai:oasis.library.unlv.edu:rtds-1077