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The objective of this article is to review the literature on the utility of using the selectively bred alcohol-preferring (P) and high-alcohol-drinking (HAD) lines of rats in studies examining high alcohol drinking in adults and adolescents, craving-like behavior, and the co-abuse of alcohol with other drugs. The P line of rats meets all of the originally proposed criteria for a suitable animal model...
Alcohol is the 5th leading risk factor to the global disease burden and disability and about half of the global alcohol burden was attributable to injuries. Despite a large body of evidence documenting the associations between alcohol and injuries, data from Asian countries including South Korea are sparse. The aim of this study was to investigate the associations between episodic heavy past-year...
Local cerebral glucose utilization (LCGU) rates, as determined by the [ 14 C]-2-deoxyglucose (2-DG) technique, were examined after acute ethanol administration within selected brain regions of alcohol-preferring (P) and alcohol-nonpreferring (NP) rats. Adult male P and NP rats were injected with saline, 0.25g/kg, or 1.0g/kg ethanol, intraperitoneally (ip), 10min before an intravenous bolus...
The objectives of the current study were to assess the effects of access to different concentrations of ethanol and sex of the animal on ethanol consumption of high-alcohol-drinking (HAD-1 and HAD-2) rats during adolescence [postnatal days (PNDs) 30 through 60]. At the beginning of adolescence (PND 30), the rats were given concurrent access to either a single concentration [15% volume/volume (vol...
The R100Q mutation in the gamma-aminobutyric acid type A (GABA A ) receptor α 6 subunit was previously identified in Sardinian alcohol-preferring (sP) and Sardinian alcohol-nonpreferring (sNP) rats as a candidate gene influencing alcohol preference and sensitivity. The purpose of the current study was to determine to what extent this mutation and alcohol preference observed in the...
The objectives of this study were to assess the effects of access to different concentrations of ethanol and sex of the animal on ethanol consumption during periadolescence [postnatal days (PNDs) 30-60] in alcohol-preferring (P) rats. On PND 28, female and male P pups were single housed in hanging stainless steel cages with ad libitum access to water and food. Beginning on PND 30, the rats were also...
Divergent ethanol-drinking behavior in rats selectively bred for high- or low-ethanol-drinking behavior could be related to differences in the sensitivity of the CNS to ethanol. In the current study, we examined the effects of acute (i.e., single injection) ethanol administration on local cerebral glucose utilization (LCGU) within selected brain regions of high-alcohol-drinking (HAD) and low-alcohol-drinking...
An intravenous method of alcohol administration that maintains arterial alcohol concentrations (AACs) in rats at a prescribed level for a prolonged period was previously described. This method produced steady state AACs between 30 and 180 min after the start of the infusion, but it resulted in substantial overshoots in AAC initially. The present study was designed to achieve target AACs close to steady...
The [ 14 C]-2-deoxyglucose ([ 14 C]-2-DG) quantitative autoradiographic technique was used to determine rates of local cerebral glucose utilization (LCGU) in discrete brain regions of adult, male alcohol-preferring (P) rats after 2 weeks of ethanol deprivation (E-D), 3 and 14 days of ethanol-relapse drinking (E-R3; E-R14), and in P rats, which were chronically drinking ethanol...
The densities of delta-opioid receptors in the central nervous system of alcohol-naive, adult, male, alcohol-preferring P, alcohol-nonpreferring NP, and Wistar rats were examined with the use of quantitative autoradiography. Slides with coronal 20-μm sections through the regions of interest were incubated in 5 nM [ 3 H]-[D-Pen 2 ,D-Pen 5 ]enkephalin (DPDPE) to label delta ...
Previous research indicated that 5-HT 3 antagonists can reduce ethanol drinking in rats, but drinking conditions and other environmental manipulations influenced the efficacy of these antagonists. The current experiments were conducted to examine the effects of the 5-HT 3 antagonists MDL 72222 (MDL) or ICS 205-930 (ICS) on 24-h ethanol (10% v/v) consumption during acquisition, maintenance,...
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