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PubMed1981

Suppression of drinking by naloxone in rats homo- and heterozygous for diabetes insipidus.

The effects of the opiate antagonist, naloxone, alone and in combination with morphine, were examined on drinking induced by water deprivation in homo- and heterozygous Brattleboro rats manifesting an inherited diabetes insipidus. Both naloxone and a structurally-related congener, naltrexone (0.01-10 mg/kg), attenuated water consumption is a dose-related fashion of 1 hr water-deprived homozygotes, which exhibit a complete absence of vasopressin. Drinking was also reduced by the two drugs in 24 hr water-deprived heterozygotes, which have detectable levels of vasopressin. Morphine pretreatment enhanced the antidipsogenic effects of naloxone in a dose- and time-dependent manner. The administration of 10 mg/kg of morphine 3 hr before testing, which itself did not affect drinking, maximally potentiated the suppressant effects of naloxone on drinking in homozygotes. This potentiating effect of morphine persisted for at least 48 hr. These results indicate that vasopressin is not essential for the antidipsogenic effects of the narcotic antagonists. The polydipsic Brattleboro rat may provide a convenient animal model for studies of the effects of opiate agonists and antagonists on drinking behavior.

Animals↗

PubMed1999

The identification of alcohol dependence criteria in the general population.

AIMS: To assess the criteria used to identify alcohol dependence in the general population. DESIGN AND SETTING: Two independent probability surveys of the US household population 18 years of age and older were analyzed: the 1994 National Telephone Survey (NTS-94), which interviewed 637 respondents, and the 1988 National Household Interview Survey (NHIS-88) which interviewed 43,809 respondents in their homes. PARTICIPANTS: The analyses of the NHIS-88 dataset focused on drinkers who consumed at least 12 drinks of alcohol in the 12 months prior to the survey interview (N = 22,102). The analyses of the NTS-94 dataset focused on drinkers who consumed at least one drink in the 12 months prior to the survey interview (N = 637). MEASUREMENTS: Criteria for DSM-IV alcohol dependence were operationalized using 15 items from a standardized questionnaire. FINDINGS: Analyses suggested that normal drinking behavior can be misidentified as dependence criteria. Results for men who drank up to two drinks per day suggest that if the dependence criteria were invalid, reductions in the prevalence of specific indicators of alcohol dependence would range from 0.3% to 5.2%. Correcting for the misidentification of alcohol dependence diagnosis would reduce the overall prevalence of alcohol dependence by 0.5%. Up to 7% of the men could have been diagnosed as alcohol-dependent and could have provided invalid reports. CONCLUSIONS: The identification of alcohol dependence in general population samples must include careful probing of the nature of drinking-related behavior reported by respondents. This will decrease misidentification of dependence criteria, increasing the validity of dependence diagnosis in survey research.

Adolescent↗

PubMed1995

Altered alertness of vasopressin-secreting transgenic mice.

We evaluated behavior and cognitive performance in a line of transgenic mice that overexpress the rat gene for vasopressin. Open field testing revealed greatest habituation in homozygous mice. Passive avoidance performance indicated equal learning and memory ability of transgenic compared to normal mice. Drinking behavior following exposure to 10% sucrose solution suggested diminished neophobia in homozygous mice. These observations are consistent with enhanced attention and alertness in the transgenic animals and support prior observations on the effects of vasopressin on behavior and cognitive function.

Animals↗

PubMed1976

Motivation for alcohol in rats: position and bottle preferences do not cause drinking.

Position preference, i.e., the tendency to drink from onelocation rather than the other, was found to be relatively unimportant in determining the drinking behavior of rats presented with a choice between water and a 7% (v/v) ethanol solution in typical two-bottle choice situations. It accounted for essentially none of the variance in rats generally drinking more alcohol solution than water after prolonged previous alcohol experience, and in rats consuming very little alcohol; only in rats drinking slightly less alcohol solution than water was it found to have an influence. Similarly, bottle preference, i.e., the tendency to drink from one of the two bottles regardless of its position or contents, andposition preference were found to have almost no effect on heavy-drinking rats even on their first day of exposure and on low-drinking rats after about three days of access to alcohol.

Alcohol Drinking↗

PubMed1976

The effect of subfornical organ lesions and ventricular blockade on drinking induced by angiotensin II.

The role of the subfornical organ (SFO) as the unique receptor site for the drinking behavior induced by intracranial injections of angiotensin II (AII) was investigated. It was found that: (1) drinking in response to intraventricular (IVT) injections of AII was reduced in 6 rats but was unchanged after 80-100% damage of the SFO in 4 cases; (2) reduction of drinking to lateral ventricular application of AII was seen with no apparent SFO damage in 4 rats; (3) recovery of the AII induced drinking deficit was consistently observed within a short time interval (14 days), even in those animals with complete SFO lesions: (4) the presence of ventricular debris was correlated with deficits in water intake to IVT angiotensin injections. In a second experiment artificial blockade of the ventricular space was produced by a plugging technique. Plugging the anterior third ventricle simulated the effects of SFO lesioning. It was concluded that the SFO is not a unique receptor area since the ventral anterior third ventricle is also sensitive for AII (IVT) induced drinking. If the SFO is a receptor site for AII circulating in the CSF it is probably not the only periventricular receptor site. Access of AII to the anterior ventral third ventricle appears to be essential for inducement of drinking.

Angiotensin II↗

PubMed1999

Approaching avoidance. A step essential to the understanding of craving.

Craving is only one component of the mental processes that influence drinking behavior. Alcohol-related cues (ARCs) can set in motion a dynamic competition between inclinations to approach drinking and inclinations to avoid drinking. Craving can thus be integrated into a comprehensive model of decision-making in which ambivalence or conflict is a key element. The relative strength of each component of the ARC reaction can fluctuate over time as well as in response to both subjective states and environmental circumstances. Simultaneously and independently evaluating these opposing responses puts clinicians in a better position to influence the relative weight that the patient assigns to the positive and negative outcomes of alcohol consumption.

Alcohol Drinking↗

PubMed1991

Serotonin uptake inhibitors: effects on motivated consummatory behaviors.

Within the context of the role of serotonin (5-HT) in motivated behavior, the authors examine the effects of 5-HT uptake inhibitors on the regulation of motivated consummatory behavior. Emphasis in this field has for the most part focused on the consistent observation that treatment with these agents attenuates voluntary ethanol drinking behavior in both rats and humans. There has been extensive speculation that the underlying mechanism of the decrease in ethanol intake induced by 5-HT uptake inhibition may involve a modulation of ethanol's reinforcing properties. However, increasing evidence indicates that food consumption and fluid intake are also attenuated by these compounds. In addition, it has been shown that morphine, amphetamine, cocaine, and nicotine self-administration, as well as intracranial self-stimulation, are all decreased following 5-HT uptake inhibition. These observations support strongly the notion that the effects of these agents are global in nature and not specific to any single consummatory behavior. They also suggest that 5-HT uptake inhibition may result in nonspecific modification of motivated behavior in general.

Alcohol Drinking↗

PubMed2002

Sex-related alcohol expectancies predict sexual risk behavior among severely and persistently mentally ill adults.

Three hundred three adults (57% male, average age 42 years) with severe and persistent mental illness receiving treatment at community mental health clinics completed a survey, which included B. C. Leigh's (1990) sex-related alcohol expectancy scale and measures of alcohol use and sexual risk behavior. Hierarchical logistic regression analyses, controlling for drinking behavior, revealed that participants with stronger expectancies that drinking would lead to enhanced sexual experience were more likely to have drank prior to intercourse and that, among participants who drank prior to intercourse, those with stronger expectancies that alcohol would lead to riskier sexual behavior were more likely to have engaged in sexual risk behavior. Implications for preventing HIV infection among people with severe mental illness are discussed.

Adult↗

PubMed2005

The A-OCDS predicts both craving and alcohol cue reactivity in adolescent alcoholics.

Adolescents with alcohol dependence may experience marked craving and physiologic reactivity in the presence of alcohol cues which could undermine treatment gains. The Adolescent Obsessive Compulsive Drinking Scale (A-OCDS) was developed to help quantify the severity of alcohol craving in adolescents with alcohol use disorders. The A-OCDS is a relatively new instrument, and empirical data are needed to support its value in clinical trials. The present investigation uses data collected as part of a clinical laboratory study examining alcohol craving and cue reactivity in adolescents with and without alcohol dependence. A-OCDS total and subscale scores from adolescent alcoholics (N = 28) were examined regarding their relationship to drinking and several indices of craving and alcohol cue reactivity. In addition, regression analyses were performed to characterize the predictive ability of A-OCDS total scores and drinking indices (drinks per drinking day and percent days abstinent) on two measures of alcohol craving and cue reactivity. Results showed that the A-OCDS total scores, but not drinks per drinking day or percent days abstinent, predicted scores on both indices of craving. The study uses a small but well-defined sample of adolescents with alcohol dependence and supports the construct validity of the A-OCDS and suggests that, as in adults, alcohol craving and drinking behavior are related but separate elements of alcohol dependence. The results are intended to guide future studies in which the A-OCDS may be employed to measure craving and changes in craving over the course of treatment for adolescents with alcohol dependence.

Adolescent↗

PubMed2005

The co-occurrence of smoking and drinking among young adults in college: national survey results from the United States.

BACKGROUND: In US colleges, alcohol and tobacco pose substantial health risks but little is known about their co-occurrence, limiting development and use of appropriately targeted prevention efforts. METHODS: Data from the 2001 HSPH College Alcohol Study (student n = 10,924; college n = 120) were analyzed using multivariate logistic regression. Co-occurring smoking/drinking risks were examined in aggregate, by gender, and by age of onset of regular drinking and smoking across 10 measures of drinking style, three categories of transitional drinking behavior, and by treatment behavior. RESULTS: Over 98% of current smokers drink; a fraction (<1%) of lifetime and 7% of past year alcohol abstainers smoke. Across drinking pattern measures, 44-59% of drinkers smoke. Co-occurrence risks are greatest among youth reporting high total alcohol consumption (adjusted OR 4.21, p < 0.0001), drinking problems (adjusted OR 3.31, p < 0.0001) or symptoms of diagnosable alcohol abuse (adjusted OR 3.02, p < 0.0001). Risks are sharply elevated among students who self-medicate for drinking problems and do not seek/receive help (adjusted OR 1.87, p < 0.0001), and those reporting symptoms of diagnosable alcohol abuse who may or may not seek/receive help (adjusted OR 2.67, p < 0.01 and 2.96, p < 0.01, respectively). Females and students reporting early adolescent onset of regular smoking are at greatest risk. CONCLUSIONS: Virtually all college smokers drink, and smoking and drinking are powerfully interrelated across drinking measures. Efficiency argues for jointly targeting both behaviors and developing interventions tailored to the special vulnerabilities of young women, students experiencing difficulties adjusting to college, and students reporting early onset of regular smoking.

Adolescent↗

PubMed1999

Children's perceptions of parental drinking: the eye of the beholder.

OBJECTIVE: Children learn about alcohol and about how to drink through modeling experience, in part. Modeling is typically studied by asking parents to describe their drinking behavior. However, children's perception of parents' drinking may differ from the way parents describe it. This study examined the degree to which children's perceptions and parents' reports agreed. METHOD: A sample of 177 grade-school children and their parents was drawn from a public school in Kentucky. Children completed questionnaires inquiring about their perceptions of the quantity, frequency and the positive and negative consequences of their parents' drinking. Their parents completed similar questionnaires describing their own drinking and its consequences. RESULTS: As hypothesized, first and second grade children's perceptions of parents' drinking were unrelated to parents' self-reports: Most of these children perceived their parents as nondrinkers even though parents reported drinking. Also as hypothesized, children's perceptions and parents' reports were significantly correlated for third through sixth grade students. However, there was a great deal of reliable, but unshared variance between these older children's perceptions and parents' reports. Children's perceptions and parents' reports were consistently quite different, even when both child and parent described the parent as a drinker. CONCLUSIONS: Studies of modeling influences on children regarding drinking should assess children's perceptions of their parents' behavior rather than parents' self-reports.

Age Factors↗

PubMed1981

Effects of chronic administration of naltrexone on appetitive behaviors of rats.

Opioid antagonists have been reported to reduce water and food intake. In the experiments, ingestive behavior was sometimes induced using stressful stimuli. These experiments were conducted to determine the effects of chronic administration of an opioid antagonist on appetitive behaviors of minimally stressed rats. Twelve 4-week old rats were randomly separated into two equal-sized groups, anesthetized with ether, and implanted subcutaneously with poly(epsilon-caprolactone) capsules. One group received naltrexone in the capsules, the other group received vehicle. These capsules released the drug at a rate of approximately 250 microgram/day for over 8 weeks. Gross metabolic behavior (food intake, water intake, urine output, fecal output, and body weight) was monitored for 8 weeks. At three times during the 8 weeks, food deprivation (24 hr)-induced feeding was tested over a period of 60 min. At the end of the eighth week, the animals were subjected to an analgesic test in order to confirm the efficacy of the naltrexone dose. No differences in food intake, body weight, fecal output, or deprivation-induced feeding were observed between the control and naltrexone groups. Water intake and fluid output of the naltrexone group were significantly reduced compared to the control group. These results suggest that endogenous opioids may mediate mechanisms of tonic drinking behavior and cannot be explained as representing effects on stress-induced ingestion.

Analgesia↗

PubMed1994

Drinking and thinking: how does personal drinking affect judgments of prevalence and risk?

In two separate university samples, the effects of individual drinking habits on perceived riskiness and estimated prevalence of drinking practices were studied. In both populations, self-reported drinking behavior was inversely related to perceived riskiness of heavy drinking and drunk driving, but inconsistently related to prevalence estimates for these behaviors. Abstainers also overestimated the commonness of heavy drinking and drunk driving much more than did drinkers who similarly did not engage in these behaviors. These findings are interpreted as consistent with self-serving motivational biases in information processing. Relative to men, women in both populations provided higher estimates of prevalence and riskiness.

Adult↗

PubMedDate not supplied

Neurobehavioral effects of the pyridinium aldoxime cholinesterase reactivator HI-6.

A series of neurobehavioral testing procedures was used to evaluate the behavioral effects of the pyridinium aldoxime cholinesterase reactivator HI-6 in male Sprague-Dawley rats. These procedures were fixed-ratio (FR) responding, shuttle-box conditioned avoidance response (CAR), conditioned taste aversion (CTA), drinking behavior, open-field exploratory behavior, negative geotaxis, and wire suspension time. Dose-response studies of HI-6 at dose-levels of 25, 50 and 100 mg/kg, or saline (IP) were evaluated. HI-6 disrupted FR responding in a dose-dependent fashion, with significant effects occurring at doses of 50 and 100 mg/kg. The pattern of disruption was characterized by extended periods of nonresponding having an abrupt onset and offset. HI-6 produced CTA in a dose-related manner, with significant effects at doses equal to those that disrupted FR performance. HI-6 did not alter CAR, drinking motivation, exploratory behavior, negative geotaxis, or wire suspension time. These data suggest that there may be a commonality in the underlying mechanism(s) for the disruption in FR performance and the induction of the CTA. This mechanism may relate to the presumed drug-induced adverse internal state inducing the CTA.

Analysis of Variance↗

PubMed2000

Gender differences in drinking patterns among Hong Kong Chinese youth: a pilot study.

About one year before the People's Republic of China regained political control of Hong Kong, a semistructured interview study was conducted among a group of 101 Hong Kong Chinese adolescents to explore their drinking behavior. The purpose of this exploratory study was to look for empirical evidence confirming the general hypothesis that wherever Chinese reside, they are moderate drinkers. Specifically, the study was designed to examine whether male and female adolescents gave different reasons for their drinking and nondrinking behavior, were differentially affected by parents' drinking, and experienced differential consequences resulting from alcohol use. The results confirm that Chinese youth in Hong Kong are moderate drinkers. Only minimal differences exist between the genders. The traditional Chinese normative view of alcohol may partly explain the results, an observation that suggests future research into the sociocultural features that influence drinking among youth.

Adolescent↗

PubMed1986

Effects of 2-deoxy-D-glucose on food and water intake and body temperature in rats.

Comparisons between early daytime and early nighttime effects of 2-deoxy-D-glucose (2DG) injections on food and water intake and rectal temperature were made. Food intake was significantly enhanced by 2DG injections regardless of the phase of the light cycle. In the daytime, water intake was increased by a lower dose of 2DG (200 mg/kg, IP) but there was no further increase at a higher dose (400 mg/kg). At night, the lower dose of 2DG had no effect on water intake but the higher dose suppressed the water intake normally associated with feeding. Administration of 2DG reduced preprandial rectal temperature in a dose dependent fashion in both phases of the light cycle. However, preprandial rectal temperatures were decreased more at night than during the daytime after injection of the higher dose of 2DG. Therefore, 2DG-induced hypothermia is dependent on both the dose of 2DG injected and the phase of the light cycle in which glucoprivation is produced. Furthermore, below a certain level of body temperature, rats markedly reduced drinking behavior while maintaining but not increasing their feeding response to 2DG-induced glucoprivation. These results suggest that behaviors may be directed toward preservations of body temperature in preference to relief of hunger by eating and of thirst by drinking.

Animals↗

PubMed1990

Psychogenic adipsia in a patient with psychotic depression.

Psychogenic adipsia is exceedingly uncommon. We report a case of severe hypernatremia secondary to adipsia from psychotic depression. The patient regained appropriate thirst, drinking behavior, and water balance after electroconvulsant therapy.

Adult↗

PubMed1979

Dependence, relapse and extinction: a theoretical critique and a behavioral examination.

Re-examines the "decay of extinction" notion proposed by Hunt and Matarazzo (1970) to account for relapse in the treatment of alcoholism and dependence disorders. The attempt to reduce complex relapse behaviors to a simple curve is criticized both from the point of view of using group data to describe an individual process and the nature of cumulative data itself. Because individual differences are marked, a simple group curve cannot describe the process of relapse. A behavioral examination then is presented, based on records of the drinking behavior of 79 alcoholics over a 12-month period after treatment. The main finding is that there are marked individual differences in the process of relapse. Furthermore, the frequency of heavy drinking seems to be most related to a pattern of drinking characterized by marked month-to-month variation in the frequency of heavy drinking rather than a more stable pattern.

Alcohol Drinking↗