Mean Ethanol Consumption Research Articles

Utility of different dimensional properties of drinking practices to predict stable low-risk drinking outcomes of natural recovery attempts

BackgroundFunctional measures indicating lower drinking problem severity predict stable low-risk drinking outcomes of recovery attempts, but findings for drinking practices are mixed. Because low-risk drinking outcomes are more common in natural than treatment-assisted recovery attempts, five studies of natural recovery attempts were integrated. Multiple dimensions of drinking practices during the year before recovery initiation were evaluated as predictors of post-recovery drinking (continuous abstinence, stable low-risk drinking, or unstable recovery involving relapse). MethodsCommunity-dwelling problem drinkers (N = 616, 68% male, mean age = 46.5 years) were enrolled soon after stopping alcohol misuse and followed prospectively for one year. A Timeline Followback interview assessed daily drinking during the year before recovery initiation and yielded four dimensions for analysis: frequency of heavy drinking days (4+/5+ drinks for females/males), mean ethanol consumption per drinking day, variability in days between heavy drinking days, and variability in ethanol consumed per drinking day. ResultsMultinomial logistic regression models showed that variability in ethanol consumed per drinking day was the sole significant predictor of 1-year outcomes when all dimensions were evaluated together. The low-risk drinker group showed less fluctuation in quantities consumed on pre-recovery drinking days compared to the groups that abstained or relapsed (ps < 0.05). ConclusionsEven when drinking heavily, problem drinkers who maintained low-risk drinking recoveries limited their quantities consumed within a relatively narrow range, a pattern they maintained post-recovery at much lower consumption levels. Assessing variability in quantities consumed may aid drinking goal selection.

Reduction in non-abstinent WHO drinking risk levels and depression/anxiety disorders: 3-year follow-up results in the US general population

BackgroundNon-abstinent drinking reductions that predict improvement in how individuals feel or function, such as the World Health Organization (WHO) drinking risk levels, may be useful outcomes in clinical trials for alcohol use disorders (AUD). MethodsCurrent drinkers in a U.S. national survey (n = 22,005) were interviewed in 2001–02 (Wave 1) and re-interviewed 3 years later (Wave 2). WHO drinking risk levels, a 4- level categorization system (very-high-risk, high-risk, moderate-risk, and low-risk drinkers) defined using estimated mean ethanol consumption (grams) per day in the prior 12 months, and DSM-IV depressive and anxiety disorders were assessed at both waves. Logistic regression was used to produce adjusted odds ratios (aOR) testing the associations of changes between Wave 1 and Wave 2 WHO risk levels to the presence or persistence of depression and/or anxiety disorder by each initial Wave 1 risk level. ResultsAmong Wave 1 very-high-risk drinkers, lower odds of depression and/or anxiety disorders at Wave 2 were predicted by reductions in WHO risk levels of one-, two- or three-levels (aOR = 0.42, 0.37, 0.67, p-values 0.04-<.0001), as was the persistence of depression and/or anxiety disorders among those with such disorders at Wave 1 (aOR = 0.37, 0.29, 0.51, p-values .03-<.0001). Results were less consistent for participants initially drinking at lower risk levels. ConclusionsAmong very-high-risk drinkers, reductions in the WHO drinking risk categories were associated with lower risk of depression and/or anxiety disorders. These results add to findings indicating reductions in WHO risk levels are a meaningful indicator of how individuals feel and function.

Change in non-abstinent WHO drinking risk levels and alcohol dependence: a 3 year follow-up study in the US general population

Alcohol dependence is often untreated. Although abstinence is often the aim of treatment, many drinkers prefer drinking reduction goals. Therefore, if supported by evidence of benefit, drinking reduction goals could broaden the appeal of treatment. Regulatory agencies are considering non-abstinent outcomes as efficacy indicators in clinical trials, including reduction in WHO drinking risk levels-very high, high, moderate, and low-defined in terms of mean ethanol consumption (in grams) per day. We aimed to study the relationship between reductions in WHO drinking risk levels and subsequent reduction in the risk of alcohol dependence. In this population-based cohort study, we included data from 22 005 drinkers who were interviewed in 2001-02 (Wave 1) and re-interviewed 3 years later (2004-05; Wave 2) in the US National Epidemiologic Survey on Alcohol and Related Conditions. Alcohol consumption (WHO drinking risk levels) and alcohol dependence (at least three of seven DSM-IV criteria in the previous 12 months) were assessed at both waves. We used logistic regression to test the relationship between change in WHO drinking risk levels between Waves 1 and 2, and alcohol dependence at Wave 2. At Wave 1, 2·5% (weighted proportion) of the respondents were very-high-risk drinkers, 2·5% were high-risk drinkers, 4·8% were moderate-risk drinkers, and most (90·2%) were low-risk drinkers. Reduction in WHO drinking risk level predicted significantly lower odds of alcohol dependence at Wave 2, particularly among very-high-risk drinkers (adjusted odds ratios 0·27 [95% CI 0·18-0·41] for reduction by one level, 0·17 [0·10-0·27] for two levels, and 0·07 [0·05-0·10] for three levels) and high-risk drinkers (0·64 [0·54-0·75] for one level and 0·12 [0·09-0·15] for two levels), and among those with alcohol dependence at Wave 1 (0·29 [0·15-0·57] for one level, 0·06 [0·04-0·10] for two levels, and 0·04 [0·03-0·06] for three levels in very-high-risk drinkers). Our results support the use of reductions in WHO drinking risk levels as an efficacy outcome in clinical trials. Because these risk levels can be readily translated into standard drink equivalents per day of different countries, the WHO risk levels could also be used internationally to guide treatment goals and clinical recommendations on drinking reduction. US National Institute on Alcohol Abuse and Alcoholism, New York State Psychiatric Institute, the Alcohol Clinical Trials Initiative.

Alcohol Use-Related Problems Among a Rural Indian Population of West Bengal: An Application of the Alcohol Use Disorders Identification Test (AUDIT).

To examine alcohol use and related problems among a rural subset of the Indian population. The Alcohol Use Disorders Identification Test (AUDIT) was used as part of Health and Demographic Surveillance of 36,611 individuals aged ≥18 years. From this survey data on 3671 current alcohol users were analysed using bivariate and multivariate ordered logit regression. Over 19% of males and 2.4% of females were current alcohol users. Mean ethanol consumption on a typical drinking day among males was estimated to be higher (96.3 gm) than females (56.5 gm). Mean AUDIT score was 11 among current alcohol users. AUDIT showed in the ordered logit regression estimated alcohol use-related problems to be low among women, Scheduled Tribes and unmarried people, whereas alcohol use-related problems registered high among Muslims. This rural population appears to be in need of an effective intervention program, perhaps targeting men and the household, aimed at reducing the level of alcohol use and related problems.

Influences of Gender and Age on Relationships Between Alcohol Drinking and Atherosclerotic Risk Factors

Alcohol drinking affects atherosclerotic progression mainly through blood pressure and lipid metabolism. The purpose of the present study was to clarify whether effects of alcohol drinking on atherosclerotic risk factors differ by gender and age. The database of periodic health check-ups for local district workers was used. The subjects were divided into 3 groups according to mean ethanol consumption per day (nondrinkers; light drinkers, less than 30 g per day; moderate-to-heavy drinkers, 30 g or more per day). The mean levels of each atherosclerosis-related variable in the 3 groups were compared. The mean level of body mass index (BMI) was slightly but significantly lower in drinkers than in nondrinkers in the thirties, forties, and fifties age groups in men and in the twenties, thirties, forties, and fifties age groups in women, while this tendency was not found in the sixties age groups of men and women. In men, mean blood pressure was higher in moderate-to-heavy drinkers than in nondrinkers in all age groups and was higher in light drinkers than in nondrinkers only in the age groups after 40 years. Mean blood pressure of women was higher in the moderate-to-heavy drinker group than in the nondrinker group and this difference became higher with advance of age. In women, mean blood pressure was not affected by light drinking in any of the age groups except for the fifties age group. In men, serum total cholesterol was higher in drinkers than in nondrinkers in the twenties age group but was lower in drinkers than in nondrinkers at thirties or older. Serum total cholesterol in women was lower in drinkers than in nondrinkers in the age groups from twenties to forties but tended to be higher in drinkers than in nondrinkers in the sixties age group. Serum HDL cholesterol increased with advance of age from thirties to sixties in men, while it decreased with advance of age from twenties to sixties in women. Serum HDL cholesterol was higher in drinkers than in nondrinkers in all age groups of men and women, and atherogenic index, calculated by using serum total cholesterol and HDL cholesterol concentrations, was lower in drinkers than in nondrinkers in all age groups of men and women. Both in men and women, blood pressure and HDL cholesterol were strongly affected by alcohol drinking: the elevating effect of alcohol drinking on blood pressure was more prominent in the elderly than in the young, while the elevating effect of alcohol drinking on serum HDL cholesterol was not influenced by age. Relationships of drinking with total cholesterol and BMI vary by age and gender.

Association between alcohol consumption and serum dehydroepiandrosterone sulphate concentration in men with Type 2 diabetes: a link to decreased cardiovascular risk

Cardiovascular disease (CVD) is the leading cause of mortality and morbidity in patients with Type 2 diabetes. Both light-to-moderate alcohol consumption and higher serum concentrations of dehydroepiandrosterone (DHEA) are associated with reduced CVD mortality, raising the possibility of DHEA as a causal intermediate in CVD and alcohol consumption. Relationships between alcohol consumption and serum DHEA sulphate (DHEA-S) concentration, carotid atherosclerosis as evaluated by carotid ultrasonography and major cardiovascular risk factors were investigated in 404 consecutive men with Type 2 diabetes. Patients were divided into three groups according to mean ethanol consumption per week: non-drinkers, light-to-moderate drinkers (< 210 g per week) or heavy drinkers (> or = 210 g per week). Plasma HDL-cholesterol was positively associated with the degree of alcohol consumption. Intima-media thickness (0.92 +/- 0.21 vs. 1.09 +/- 0.35 mm, P < 0.0001) and plaque score (3.0 +/- 3.3 vs. 5.2 +/- 4.9, P = 0.008) were lower in light-to-moderate drinkers than in non-drinkers. Serum DHEA-S concentrations were higher in light-to-moderate drinkers (1264.2 +/- 592.2 ng/ml, P < 0.0001) and heavy drinkers (1176.2 +/- 607.6 ng/ml, P = 0.0100) than in non-drinkers (956.8 +/- 538.6 ng/ml). In a subgroup aged 60-75-year-old patients (n = 277), serum DHEA-S concentrations were higher in light-to-moderate drinkers (1126.8 +/- 502.5 ng/ml, P = 0.0121) than in non-drinkers (937.9 +/- 505.1 ng/ml). Also, in a subgroup without CVD (n = 339), serum DHEA-S concentrations were higher in light-to-moderate drinkers (1328.5 +/- 593.7 ng/ml, P < 0.0001) than in non-drinkers (970.1 +/- 540.7 ng/ml). Higher serum DHEA-S concentrations in light-to-moderate drinkers may represent part of the link between light-to-moderate alcohol consumption and lower CVD mortality.

SERUM GAMMA-GLUTAMYL TRANSFERASE IN ALCOHOLICS, MODERATE DRINKERS AND ABSTAINERS: EFFECT ON GT REFERENCE INTERVALS AT POPULATION LEVEL

To clarify in the association between amount of ethanol consumption and serum gamma-glutamyl transferase (GT) levels. GT values were measured from 195 individuals with a wide variety of well-documented ethanol consumption assessed by detailed personal interviews using a time-line follow-back technique. These included 103 heavy drinkers (90 men, 13 women) and 92 healthy volunteers (54 men, 38 women) who were either abstainers (n = 30) or moderate drinkers (n = 62). For comparisons, data were collected from GT measurements for establishing GT reference intervals from 2485 healthy volunteers including 1156 abstainers and 1329 moderate drinkers. GT values in the individuals whose mean ethanol consumption exceeded 40 g of ethanol per day were significantly higher than those in the moderate drinkers with a mean consumption of 1-40 g/day (P < 0.001) or in abstainers (P < 0.001). The GT values in the group of moderate drinkers also exceeded those of the abstainers (P < 0.001). The upper normal GT limits obtained from the data from abstainers were markedly lower (men 45 U/l, women 35 U/l) than those obtained from the population of moderate drinkers (men 66 U/l, women 40 U/l). Serum GT concentrations may respond to relatively low levels of ethanol consumption, which should be considered when defining GT reference intervals. The continuous increase in alcohol consumption at population level may lead to increased GT cut-off limits and hamper the detection of alcohol problems and liver affection in their early phase.

The effect of chronic ethanol consumption and withdrawal on mu-opioid and dopamine D(1) and D(2) receptor density in Fawn-Hooded rat brain.

Previous studies have implicated the dopamine and opioid systems in the induction and maintenance of ethanol consumption. This study investigated, in alcohol-preferring Fawn-Hooded (FH) rats, whether chronic free-choice ethanol consumption and subsequent withdrawal cause alterations in central mu-opioid, dopamine D(1), and D(2) receptor density using autoradiography. FH rats were given a free choice between a 5% ethanol solution and tap water (n = 25) and displayed a mean ethanol consumption of 5.6 g/kg/day. A parallel group of FH rats (n = 5) only had access to tap water. Rats were then withdrawn from ethanol for 0, 1, 2, 5, or 10 days and killed by cervical dislocation and decapitation. Increases in mu-opioid receptor density were observed in the nucleus accumbens and ventral tegmental area upon withdrawal compared with the ethanol naive group. In the lateral amygdala, binding in all withdrawal groups was significantly different from the ethanol naive FH rats, and also from the chronic ethanol rats. An increase in dopamine D(1) receptor density was observed in the substantia nigra, pars reticulata in the 5- and 10-day withdrawal groups compared with ethanol naive. Accumbal dopamine D(2) receptor density (+25-30%) increased in the 10-day withdrawal group compared with both naive and chronic ethanol groups. These findings demonstrate that the opioid and dopamine systems are susceptible to modulation by chronic ethanol consumption and withdrawal in the FH rat. Furthermore, although acute ethanol withdrawal results in modulation of mu-opioid receptors, effects on dopamine receptors are delayed and only become evident 5 to 10 days after withdrawal.

A modified liquid diet of chronic ethanol administration: Validation by ethanol withdrawal syndrome in rats

The validity of a modified liquid diet prepared from cow's milk, 7.2% ethanol, vitamin A and sucrose mixture has been investigated for chronic ethanol administration in rats. The rats fed by the modified liquid diet lost 3.8% of their body weight along 20 days. The mean ethanol consumption was in the range of 12.6 to 17.6 g kg −1 day −1. The blood ethanol level just before the withdrawal of ethanol was found to be 301.38±36.68 mg dl −1. A severe ethanol withdrawal syndrome was observed after 20-day exposure to ethanol in the modified liquid diet. The results suggest that the modified liquid diet can be used satisfactorily for chronic ethanol administration in rats.

Blood and serum thiamin and thiamin phosphate esters concentrations in patients with alcohol dependence syndrome before and after thiamin treatment.

The blood and serum concentrations of free thiamin and its three phosphate esters were determined concomitantly by a new high-performance liquid chromatography (HPLC) method in 30 patients with alcohol dependence syndrome on admission to hospital and 24 hr after thiamin injection. We studied 24 men and 6 women; mean age, 50 years (range 21 to 69); mean ethanol consumption during the last 30 days, 164 +/- 119 g/day. A control group included 40 healthy volunteers (25 men, 15 women), of whom 10 were given the same thiamin injection as were the patients. Thiamin monophosphate was significantly reduced in the patients compared with controls before treatment (men 2.9 +/- 2.3 and 5.9 +/- 3.1 nmol/liter) and after (8.1 +/- 5.1 and 19.5 +/- 8.1 nmol/liter). On admission, free thiamin and thiamin diphosphate were similar in controls and in patients in whole blood (B) and serum (S) and increased similarly after treatment (mean B-thiamin diphosphate in male patients: 149 +/- 64 to 238 +/- 88 nmol/liter, in controls: 179 +/- 40 to 289 +/- 18 nmol/liter). However, seven patients had extremely high free thiamin values. The phosphorylation ratio was lower in patients than in controls (p less than 0.05), before and after treatment. Finally, the mean B-diphosphate was lower in patients not taking vitamins (116 +/- 48 nmol/liter and 172 +/- 57 nmol/liter) and in patients with polyneuropathy (118 +/- 54 nmol/liter and 173 +/- 52 nmol/liter), compared with the other patients.(ABSTRACT TRUNCATED AT 250 WORDS)

The effect of long-term, voluntary ethanol consumption on hepatic regeneration in rats

Previous studies have reported conflicting results regarding the effect of ethanol on hepatic regeneration. The purpose of the present study was to determine whether long-term, voluntary consumption of ethanol, within the range reported in humans, has an effect on hepatic regenerative activity in rats following partial hepatectomy. Ninety-four adult male Sprague-Dawley rats (n = 3-9/group) were studied. Based on the amount of 9% ethanol consumed over a 50-day period, low ethanol intake (0.1-1.9 g.kg-1.d-1) and high ethanol intake (2.0-4.0 g.kg-1.d-1) groups were identified. Control groups consisted of rats provided with propylene glycol in equivalent caloric amounts to the ethanol consumed by high ethanol intake rats (isocaloric group) and rats served water only (ad libitum group). An additional two groups from which ethanol was removed 5 days prior to surgery were also studied (low ethanol grace and high ethanol grace). Hepatic regeneration was determined by restitution of liver weight, [3H]thymidine incorporation into DNA, and [14C]leucine incorporation into protein 24, 48, and 72 h following partial (70%) hepatectomy. The results of the study revealed no significant differences in the rate of hepatic regeneration between low and high ethanol consuming rats or between either of these groups and isocaloric or ad-libitum fed control groups. Regeneration in low ethanol grace and high ethanol grace groups were also similar to each other and controls. Moreover, there was no correlation between mean ethanol consumption per rat and restitution of liver weight, [3H]thymidine incorporation into DNA, or [14C]leucine incorporation into protein by the regenerating liver (r = 0.0716, -0.1637, and 0.1395, respectively).(ABSTRACT TRUNCATED AT 250 WORDS)

ALCOHOLIC INTAKE IN A SMALL RURAL VILLAGE

Eight hundred and eighteen (400 males and 418 females), randomly selected inhabitants of an economically depressed rural village in the south of Tenerife, have been analysed with respect to their daily alcoholic intake and its relationship to sex, age, marital status, educational and economical level, job, tobacco use and the CAGE and brief MAST tests. Five hundred and four (68.9%) consumed alcoholic beverages, while 254 (31.1%) were teetotal; 12.1% of the subjects aged more than 15 years (23.85% of the males and 1.4% of the females) consumed 'risk' amounts of alcoholic beverages (more than 80 g/day and 40 g/day respectively). Mean ethanol consumption was 37.9 +/- 2.1 g/day for the male sex and 3.9 +/- 0.6 g/day for the female. Maximum mean ethanol consumption (60.9 g/day) was observed among the males aged 55-64 years. The distribution of the population according to the amount of ethanol consumed fits into Lederman's curve, most of the individuals being consumers of small amounts of ethanol. Male sex, middle age, married status, unskilled job, low educational level, and tobacco use were all related to a higher ethanol consumption. CAGE and brief MAST tests detected only 40.5% and 47% respectively of the subjects with 'risk' levels of alcohol consumption.

The effect of ethanol on the normal food intake and eating behaviour of the rat

A computerised system was used to continually monitor the food intake and meal patterns of six rats over eighteen days. The effect of replacing the normal drinking water with a 10% ethanol solution for the second six-day period was assessed. Fluid intake decreased by 29% and resulted in a mean ethanol consumption of 6 ml/kg/rat/day. Energy intake remained unchanged with food intake being significantly reduced ( p<0.05) in proportion to the calories consumed as ethanol. The reduction in food intake was achieved by a significant decrease in mean meal size ( p<0.01), whilst meal frequency demonstrated a nonsignificant increase. Withdrawal of the ethanol solution resulted in highly variable feeding behaviour. It is concluded that rats will adapt their meal patterns to regulate their energy intake when a 10% ethanol solution is the sole fluid source. It is suggested that the caloric potential of ethanol is recognised through the release of CCK and consequently meal pattern adaptations are the result of premature satiety.

Agreement between two dietary methods in the measurement of alcohol consumption.

This study compares estimates of alcohol consumption from two dietary methods: a self-reported diet diary and a quantitative food frequency questionnaire. In the 1984-85 University of Michigan Food Frequency Study, 228 black and white, male and female respondents, ages 23-51 years, kept diet diaries covering 16 days during a 1-year period. At the end of the year, the same respondents completed a dietary quantity-frequency questionnaire that included alcoholic beverages. The two methods showed excellent agreement in estimated group mean ethanol consumption and good agreement in the ranking of individual respondents. Respondents described alcohol consumption in abstract terms on the questionnaire in a way that was consistent with the consumption recorded in the diary. However, the two methods showed only poor to moderate agreement in classifying individuals as infrequent, moderate or heavier drinkers, suggesting that such classifications should be used cautiously. These results suggest that in general population studies a dietary quantity-frequency questionnaire and a diet diary covering several weeks can measure moderate levels of alcohol consumption similarly. The degree of consistency suggests that, for moderate levels of intake, measures of alcohol consumption derived from the two methods are equally valid.

Initiating Ethanol Drinking in a Simian Social Group in a Naturalistic Setting

We examined in nine group-living, male Japanese Snow monkeys the initiation of alcohol-drinking behavior in an enriched environment where both social and nonsocial stimuli could influence drinking. The monkeys usually could move freely between an indoor shelter and a large outdoor corral, which contained three drinkometers. During daily 2-hr sessions in pre- and post-training periods (with food and water available ad libitum), the drinkometers held (on different days) Koolaid-saccharin, water, water with 5% ethanol, Koolaid-saccharin with 5% ethanol, or Koolaid-sucrose with acetic acid (matched in calories and palatability to Koolaid-saccharin with 5% ethanol). Between pre- and post-training periods was a long training period, in which Koolaid-saccharin with various ethanol concentrations was presented with the daily food ration in 2-hr drinking sessions. On other selected training days, water with 5% ethanol was presented. During training sessions some monkeys drank high doses; others did not. During the period of peak drinking, the daily mean ethanol consumption ranged among animals from 0.54-1.99 ml/kg. Blood ethanol concentrations then sometimes exceeded 100 mg/dl. During the post-training period, with return to ad libitum food and water, consumption declined from these peaks, but remained significantly higher than pretraining consumption; the ethanol solution was established as a reinforcer. Monkeys differed significantly in the extent of this pre/post increase. In both pre- and post-training periods, consumption was significantly greater when all three drinkometers operated, compared with only one. On pretraining days when only one drinkometer operated, more dominant animals drank significantly more than less dominant animals; this difference disappeared by the post-training period, as less dominant animals learned to use the drinkometers at times when the dominant animals eschewed the machines. Pretraining consumption did not predict (among animals) post-training consumption. Before, during, and after training, these animals drank less of both alcohol and control solutions than did members of another species, which we had studied in smaller indoor pens. We discuss possible explanations and implications.

Alcoolismo na população industrial: diagnóstico, prevalência e condicionantes.

The pattern of alcohol consumption has been studied among 92 males, workers in a factory of the Lisbon area. In this population there were three groups of ethanol consumers: I--non consumers, 6%; II--medium, up to 80g/day, 68%; III--heavy consumers, more than 80g/day, 26%. Another group (IV) was considered, for reference, with 23 patients with heavy alcoholism in the outpatients of an alcoholic addicts clinic. Besides the clinical questionnaire and medical examination, the following methods have been used and analysed: brief MAST; Le Gô, Mean Corpuscular Volume (MCV), serum glutamic oxalacetic Trasaminase (SGOT), and gama-glutamyl transpepticlase (gamma GT). The mean ethanol consumption in group IV was significantly higher than in group III (p less than 0.005), and in group III higher than in group II (p less than 0.001). Group IV demarked itself form group III due to a higher prevalence of symptoms of physical dependence (p less than 0.001), and of consumption of tranquilizers (p less than 0.01). In group III the sensitivity of brief MAST has been only 8.5% and of Le Gô 13%. An increased MCV was found in 20% of individuals in group I, 4.9% in group II, 20% in group IV. The SGOT was normal in groups I and II, and increased in 8.7% of group III and 30.4% of group IV (p less than 0.05). The gamma GT was normal in group I and abnormal in 4.7% of group IV (p less than 0.01). In conclusion, approximately 25% of the workers have an excessive ethanol consumption.(ABSTRACT TRUNCATED AT 250 WORDS)

Organization of the commissural projection to the dentate gyrus is unaltered by heavy ethanol exposure during gestation

The anterograde horseradish peroxidase method was used to determine if prenatal exposure to ethanol affected the development of the characteristic afferent lamination pattern of the commissural projection to the dentate gyrus. Mean ethanol consumption for the ethanol-consuming dams was 12.7 g/kg ± 0.3 g per day. Adult offspring of rats that consumed a liquid diet containing 35% ethanol-derived calories during days 1–21 of gestation, and both pair-fed and normal controls were examined. Brain weights and volumes of the ethanol and pair-fed control rats did not differ significantly from normal controls. However, body weights of ethanol-exposed rats were significantly reduced compared to normal controls. Computer-assisted image analysis of the HRP-labeling revealed that in spite of the heavy ethanol exposure there was no evidence of alterations in the spatial distribution of the commissural terminal field.

Perforant pathway lamination in the dentate gyrus is unaffected by prenatal ethanol exposure

The entorhinal (perforant path) projection to the dentate gyrus was labeled with an anterograde horseradish peroxidase method to test whether prenatal exposure to ethanol affected the normal development of afferent lamination. Mean ethanol consumption of the ethanol-consuming dams was 12.7 g/kg±0.3 g per day during days 1–21 of gestation. Adult offspring of normal and pair-fed controls as well as ethanol-exposed rats were analyzed. Computer-assisted image analysis of the entorhinal terminal field organization revealed no permanent changes in the development of the afferent lamination pattern in the dentate gyrus molecular layer in spite of the heavy in utero ethanol exposure.

Effect of chronic ethanol consumption on liver metabolites in Sinclair (S-1) miniature swine

1. 1. The nature and extent of changes in levels of liver metabolites, as a result of chronic ethanol consumption, were investigated using miniature swine as experimental subjects. 2. 2. Mean ethanol consumption was in excess of 6.0 g ethanol/kg body weight per day. 3. 3. Mean hepatic tissue concentrations of triglycerides, NADH and β-hydroxybutyrate, as well as the β-hydroxybutyrate/acetoacetate ratio, were greater for pigs fed ethanol than for controls. 4. 4. Mean hepatic tissue levels of glycogen and ATP, as well as the NAD +/NADH ratio and energy charge, were less for pigs fed ethanol than for controls.