Abstract：
:The effects of ethanol on blood pH, PCO2, and PO2 were measured in LS and SS mice in an attempt to ascertain whether these lines of mice, which differ in CNS sensitivity to the behavioral effects of ethanol, also differ in sensitivity to physiological effects of this drug. Long-sleep (LS) female mice were injected intraperitoneally with 1.8, 2.5, 3.3, or 3.8 g/kg ethanol; short-sleep (SS) female mice were administered 2.5, 3.3, 4.1, or 4.7 g/kg. Blood pH, PCO2, and PO2 were assessed at 15, 30, 60, 120, or 180 min after injection of the 2.5 and 4.1 g/kg doses or at 60 min after injection of the 1.8, 2.5, 3.3, 3.8, 4.1, and 4.7 g/kg doses. Opposite effects on blood pH and PCO2 over time were obtained in LS and SS mice at the 2.5 g/kg dose. Acidosis characterized the LS line, whereas alkalosis characterized the SS. The results obtained with SS mice at 4.1 g/kg dose were similar to those obtained with LS mice at the 2.5 g/kg dose. The dose-response curve for the SS mice generated at 60 min post-injection lies to the right of that for the LS mice. The effects of high ethanol doses on SS mice resemble the effects of low doses on LS animals. Thus, the two lines of mice differ in response to the effects of ethanol on these parameters related to respiration. The difference in sensitivity to the respiratory depressant effects of ethanol may contribute to the differences in behavioral sensitivity between the two lines.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Gilliam DM,Collins ACdoi
10.1016/0031-9384(82)90208-6subject
Has Abstractpub_date
1982-05-01 00:00:00pages
879-83issue
5eissn
0031-9384issn
1873-507Xpii
0031-9384(82)90208-6journal_volume
28pub_type
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