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At least 253 records · Page 14Linked to original sources
PubMed1984

[Alcoholic fatty liver, alcoholic hepatitis and alcoholic cirrhosis. Drinking behavior and incidence of clinical, clinico-chemical and histological findings in 282 patients].

Drinking pattern as well as clinical, biochemical and histological findings were recorded of 282 males with alcohol-induced liver disease (fatty liver in 103, hepatitis in 61, cirrhosis in 118). The proportion of persons under 50 years of age was significantly greater with alcoholic hepatitis (70%) than cirrhosis (46%). Mean daily alcohol consumption was clearly lower among those with fatty liver than hepatitis or cirrhosis (P less than 0.02). Duration of alcohol abuse was on average shorter in patients with fatty liver and hepatitis than with cirrhosis (excessive consumption of less than 15 years was 61% and 62%, respectively, in the former, 28% in the latter (P less than 0.02). Symptoms and clinical and biochemical findings did not help in differentiating between hepatitis without cirrhotic change and cirrhosis. The most marked differences between cirrhosis and hepatitis, on one hand, and fatty liver, on the other, related to the frequency of certain signs and symptoms: upper abdominal pain, hard consistency of the liver, generalized jaundice, bleeding from esophageal varices and ascites; among biochemical findings they were: elevation of serum-bilirubin concentration above 34 mumol/l (2 mg/dl), lowering of the Quick values and of albumin concentration. Mortality rate during hospital stay was lower among patients with hepatitis but no cirrhotic change (6.6%) than among those with cirrhotic change (31.4%). While the prognosis under abstinence was relatively more favourable in patients with mild or moderately severe hepatitis, nonicteric forms require closer attention than has been given them so far.

Adult↗
PubMed2006

Compulsive-like effects of quinpirole on drinking behavior in rats are inhibited by substituting ethanol for water.

We have previously reported that in rats given the choice between operant and free access to water (contrafreeloading: CFL), repeated administrations of quinpirole, a D2/D3 dopamine receptor agonist, shifted the animals towards the operant access and inhibited water intake. The purpose of the present study was to investigate the influence of substituting different concentrations of ethanol (2, 4, 6%) for water on the effects of repeated daily administrations of vehicle or quinpirole (0.5mg/kg i.p.) in rats that for 6 days were given access to the fluid according to an FR3 schedule of reinforcement and for the following 9 days were given the choice between operant and free access to the fluid. On the first day quinpirole completely suppressed operant behavior, which however progressively increased in the subsequent sessions, approaching control levels by day 6. Ethanol presentation did not alter these effects of quinpirole. When the resource was also freely available, quinpirole produced the expected shift from free to operant access to water (CFL). Substituting ethanol for water resulted in a concentration-related reduction of the over-responding and, consequently, of CFL induced by quinpirole. In vehicle-injected subjects ethanol did not affect responding and only marginally reduced fluid intake. Thus, ethanol appears to prevent perseveration in performing needless instrumental behavior induced by repeated activation of D2/D3 receptors.

Analysis of Variance↗
PubMed2004

Explaining adolescents' smoking and drinking behavior: the concept of smoker and drinker prototypes in relation to variables of the theory of planned behavior.

Research has demonstrated that social image factors play an important role in the course of adolescent's substance use, that is, smoking and drinking. The concept of social images or prototypes is embedded into a theoretical model called the prototype/willingness model. The present study addresses the relative value of the prototype/willingness model in relation to the theory of planned behavior. To study relations between prototypes and adolescents' willingness and intention to engage in smoking and drinking behavior, cross-sectional data among 2814 adolescents (12-16 years) were gathered. Results show that adolescents describe daily-smoking and weekly-drinking peers generally as slightly well adjusted, slightly rebellious, not really cool, and not really attractive. Positive relations were observed between smoker and drinker prototypes and adolescents' intention and willingness to smoke and drink in the future. Furthermore, regression analyses showed that prototypes of daily-smoking and weekly-drinking peers explained a significant part of the variance in intention and willingness to smoke and drink, and added significantly to the variance explained by the variables of the theory of planned behavior.

Adolescent↗
PubMed1977

Consequences of social modification of drinking behavior.

Alcoholic patients who remained abstinent during a Fixed Interval Drinking Decision treatment program had fewer alcohol-related problems at a 6-month follow-up than those who drank during treatment. Pretreatment encouragement to remain abstinent may also have favorably affected the results.

Adult↗
PubMed2003

Angiotensin II and III microinjections into the zona incerta influence drinking behavior.

Different doses of angiotensin II (AII) or angiotensin III (AIII) microinjections into the zona incerta have been studied on drinking of rats in separate experiments during the consequent 60-min-daily-drinking period. Also, the dipsogen power of only the effective dose of AII and AIII was compared to vehicle treated rats. After, angiotensin receptor (AT(1), AT(2)) antagonists on AII or AIII induced drinking were tested. In the first and second experiments only the 100 ng AII and the 200 ng AIII increased water intake significantly. In the third experiment the AII started its dipsogen effect earlier, at the 5 min measuring time, compared to the AIII. Both effects kept on lasting parallel from the 10 min on. Considering the antagonist pre-treatments in the fourth experiment, animals were injected with 90 ng losartan, an AT(1) antagonist, 180 ng PD 123319 or 200 ng CGP 42112, both AT(2) antagonists, respectively. Both AII and AIII increased water consumption. The effect of AII could be blocked by losartan, but not by PD 123319 or CGP 42112. On the other hand, the effect of AIII could not be blocked by losartan, but by both the PD 123319 and CGP 42112. Since, the effects of AII, AIII and angiotensin antagonists have not been tested in the zona incerta, the finding that water intake increased after AII or AIII injections and it could be blocked only by either of the antagonists suggests that AT(1) and AT(2) receptors play partially different roles in the regulation of water intake.

Angiotensin II↗
PubMed1990

Failure of a 2-hour motivational intervention to alter recurrent drinking behavior in alcoholics with gastrointestinal disease.

Patients (N = 114) consecutively entering a medical service with ulcer, cirrhosis or pancreatitis, currently drinking and not currently active in alcoholism treatment were randomly assigned to motivational intervention (MI) or to a control group. Increased utilization of alcoholism programs and self-reported sobriety at 10 weeks were assessed. MI consisted of three separate discussions of the relationship of the patient's disease to continued drinking and the compassionate offer of treatment. Two persons skilled in treatment also met with each MI subject and discussed treatment possibilities for them, facilitating entrance if desired. Patients in both the MI and control group were treated for their medical condition by a medical team and alcoholism treatment was always recommended. Outcome was evaluated for the period from the 10th to the 16th week after return to the community by interview of patient and household contacts and by the keeping of appointments. There were no differences between the control and MI groups, with at least 38% remaining sober for the 10-week interval; the study size was sufficient to detect reliably a 30% improvement. We conclude that additional motivational intervention to this level was not beneficial to the hospitalized alcoholic with disease. There was a statistically significant increase in sobriety among patients who either undertook alcoholism therapy, accepted all parts of the study or kept clinical appointments.

Adult↗
PubMed1992

Problem: thirst, drinking behavior, and involuntary dehydration.

The phenomenon of involuntary dehydration, the delay in full restoration of a body water deficit by drinking, has been described extensively but relatively little is known about its physiological mechanism. It occurs primarily in humans when they are exposed to various stresses including exercise, environmental heat and cold, altitude, water immersion, dehydration, and perhaps microgravity, singly and in various combinations. The level of involuntary dehydration is approximately proportional to the degree of total stress imposed on the body. Involuntary dehydration appears to be controlled by more than one factor including social customs that influence what is consumed, the capacity and rate of fluid absorption from the gastrointestinal system, the level of cellular hydration involving the osmotic-vasopressin interaction with sensitive cells or structures in the central nervous system, and, to a lesser extent, hypovolemic-angiotensin II stimuli. Since humans drink when there is no apparent physiological stimulus, the psychological component should always be considered when investigating the total mechanisms for drinking.

Arginine Vasopressin↗
PubMedDate not supplied

Changes in ambulation and drinking behavior related to stroke in stroke-prone spontaneously hypertensive rats.

In order to elucidate the behavioral changes related to stroke, ambulatory activity and water drinking were observed in stroke-prone spontaneously hypertensive rats (SHRSP). Age matched male SHRSP and Wistar Kyoto rats (WKY) were subjected to a 12 hour light and dark alternation cycle. Ambulation and drinking activity counts were determined simultaneously with an Ambulo-Drinkometer. Before stroke, ambulation and drinking activity counts in the dark phase (82%) were higher than those in the light phase (18%). Both parameters were well synchronized with the light and dark alternation cycle. With aging, daily ambulation decreased while daily drinking activity increased in SHRSP and WKY. Daily ambulation and drinking activity in 15 and 30 week old SHRSP were greater than those of WKY. It was demonstrated with an Ambulo-Drinkometer that SHRSP undergo specific behavioral changes before the onset of stroke. For instance, the 40-60 week old SHRSP showed significant individual variation in both ambulation and drinking activity. This desynchronization with the light and dark alternation cycle was followed by stroke. Twenty seven autopsies showed 11 cerebral infarctions, 10 cerebral hemorrhage and 6 cerebral hemorrhage with infarctions to be the causes of death.

Activity Cycles↗