| 1. |
- Alling, Christer, et al.
(författare)
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Anionic glycerophospholipids in platelets from alcoholics
- 1986
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Ingår i: Drug and Alcohol Dependence. - : Elsevier BV. - 1879-0046 .- 0376-8716. ; 16:4, s. 309-320
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Tidskriftsartikel (refereegranskat)abstract
- Studies on ethanol-exposed animals have revealed changes in anionic phospholipids in brain membranes. The intention of this study was to investigate whether there was a similar effect on man. Assuming platelets to be an adequate model for CNS synaptosomes, concentration and fatty acid composition of anionic phospholipids, phosphatidylserine (PS) and phosphatidylositol (PI) in the platelet membrane from alcoholics after a debauche period were examined and compared to controls. Ethanol effects on neutral lipids were also analysed in order to obtain a comprehensive view. No quantitative difference was found in anionic phospholipids between alcoholics and controls. Fatty acid composition of individual phospholipids revealed significant changes which were more obvious in neutral phospholipids than in anionic. Oleic acid was increased and linoleic and arachidonic acids were decreased. After 1 week of detoxification, the abnormalities did not decrease, on the contrary they increased and total phospholipid concentration per platelet was significantly higher than in controls. It is concluded that the ethanol toxicity on bone marrow hampers the use of platelets as a model for synaptosomes but that the observed lipid abnormalities might play a major role in the impairment of platelet function in alcoholics.
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| 2. |
- Simonsson, Per, et al.
(författare)
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Ethanol stimulates basal and serotonin-induced formation of [32P]phosphatidic acid in human platelets
- 1989
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Ingår i: Drug and Alcohol Dependence. - : Elsevier BV. - 1879-0046 .- 0376-8716. ; 24:2, s. 169-174
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Tidskriftsartikel (refereegranskat)abstract
- The addition of serotonin to preparations of 32P-labelled human platelets resulted in a time- and dose-dependent hydrolysis of [32P]phosphatidylinositol 4,5-bisphosphate (PIP2) and formation of [32P]phosphatidic acid (PA). This response was inhibited by the serotonin2 receptor antagonist ritanserin, indicating that the stimulation was mediated via the serotonin2 receptor. The addition of 50-150 mM of ethanol prior to stimulation with 10(-5) M serotonin resulted in an increased accumulation of [32P]PA, but had no effect on [32P]PIP2. Ethanol stimulated [32P]PA formation at all serotonin concentrations studied (10(-7)-10(-5) M). Furthermore, in the absence of serotonin, ethanol increased basal [32P]PA formation.
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| 3. |
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| 4. |
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| 5. |
- Agahi, Neda, et al.
(författare)
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Alcohol consumption in very old age and its association with survival : A matter of health and physical function
- 2016
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Ingår i: Drug And Alcohol Dependence. - : Elsevier BV. - 0376-8716 .- 1879-0046. ; 159, s. 240-245
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Tidskriftsartikel (refereegranskat)abstract
- Background: Alcohol consumption in very old age is increasing; yet, little is known about the personal and health-related characteristics associated with different levels of alcohol consumption and the association between alcohol consumption and survival among the oldest old. Methods: Nationally representative data from the Swedish Panel Study of Living Conditions of the Oldest Old (SWEOLD, ages 76-101; n=863) collected in 2010/2011 were used. Mortality was analyzed unti12014. Alcohol consumption was measured with questions about frequency and amount. Drinks per month were calculated and categorized as abstainer, light-to-moderate drinker (0.5-30 drinks/month) and heavy drinker (>30 drinks/month). Multinomial logistic regressions and Laplace regressions were performed. Results: Compared to light-to-moderate drinkers, abstainers had lower levels of education and more functional health problems, while heavy drinkers were more often men, had higher levels of education, and no serious health or functional problems. In models adjusted only for age and sex, abstainers died earlier than drinkers. Among light-to-moderate drinkers, each additional drink/month was associated with longer survival, while among heavy drinkers, each additional drink/month was associated with shorter survival. However, after adjusting for personal and health-related factors, estimates were lower and no longer statistically significant. Conclusions: The association between alcohol consumption and survival in very old age seems to have an inverse J-shape; abstention and heavy use is associated with shorter survival compared to light-to moderate drinking. To a large extent, differences in survival are due to differences in baseline health and physical function.
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| 6. |
- Agahi, Neda, et al.
(författare)
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Social integration and alcohol consumption among older people : A four-year follow-up of a Swedish national sample
- 2019
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Ingår i: Drug And Alcohol Dependence. - : Elsevier BV. - 0376-8716 .- 1879-0046. ; 196, s. 40-45
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Tidskriftsartikel (refereegranskat)abstract
- Background: Today’s older people drink more alcohol than earlier cohorts of older people. Social integration has been identified as an important factor for older people’s drinking, but the association is complex. This study investigates both high and low levels of social integration and their associations with longitudinal patterns of alcohol consumption among older women and men.Methods: Longitudinal nationally representative data of older Swedish women and men aged over 65 – the Swedish Level of Living Survey (LNU) and Swedish Panel Study of Living Conditions of the Oldest Old (SWEOLD) – from 2010/2011 and 2014 (n = 1048). Associations between social contacts and social activities at baseline and longitudinal patterns of drinking frequency were examined with multinomial logistic regression analyses. Results: Men reported drinking alcohol more often than women, but the most common drinking frequency among both women and men was to drink monthly or less. Drinking habits were generally stable over time. People with high levels of social activity at baseline were more likely to have a stable daily or weekly drinking frequency or increased drinking frequency over the four-year follow-up period, particularly women. People with low levels of social contacts and/or social activities were less likely to have a stable daily or weekly drinking frequency, compared to people in the low and stable drinking frequency group.Conclusions: Alcohol consumption is embedded in a social context, older people drink in social situations and social integration predicts continued drinking patterns.
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| 7. |
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| 8. |
- Barclay, Kieron, et al.
(författare)
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Birth order and hospitalization for alcohol and narcotics use in Sweden
- 2016
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Ingår i: Drug And Alcohol Dependence. - : Elsevier BV. - 0376-8716 .- 1879-0046. ; 167, s. 15-22
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Tidskriftsartikel (refereegranskat)abstract
- Background: Previous studies have shown that birth order is an important predictor of later life health as well as socioeconomic attainment. In this study, we examine the relationship between birth order and hospitalization for alcohol and narcotics use in Sweden. Methods: We study the relationship between birth order and hospitalization related to alcohol and narcotics use before and after the age of 20 using Swedish register data for cohorts born 1987-1994. We apply Cox proportional hazard models and use sibling fixed effects, eliminating confounding by factors shared by the siblings. Results: Before age 20 we find that later born siblings are hospitalized for alcohol use at a higher rate than first-borns, and there is a monotonic increase in the hazard of hospitalization with increasing birth order. Second-borns are hospitalized at a rate 47% higher than first-borns, and third-borns at a rate 65% higher. Similar patterns are observed for hospitalization for narcotics use. After age 20 the pattern is similar, but the association is weaker. These patterns are consistent across various sibling group sizes. Conclusions: Later born siblings are more likely to be hospitalized for both alcohol and narcotics use in Sweden. These birth order effects are substantial in size, and larger than the estimated sex differences for the risk of hospitalization related to alcohol and drug use before age 20, and previous estimates for socioeconomic status differences in alcohol and drug abuse.
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| 9. |
- Been, Frederic, et al.
(författare)
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Assessing geographical differences in illicit drug consumption-A comparison of results from epidemiological and wastewater data in Germany and Switzerland
- 2016
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Ingår i: Drug And Alcohol Dependence. - : Elsevier BV. - 0376-8716 .- 1879-0046. ; 161, s. 189-199
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Tidskriftsartikel (refereegranskat)abstract
- Background: Wastewater analysis is an innovative approach that allows monitoring illicit drug use at the community level. This study focused on investigating geographical differences in drug consumption by comparing epidemiological, crime and wastewater data. Methods: Wastewater samples were collected in 19 cities across Germany and Switzerland during one week, covering a population of approximately 8.1 million people. Self-report data and consumption offences for the investigated areas were used for comparison and to investigate differences between the indicators. Results: Good agreement between data sources was observed for cannabis and amphetamine-type stimulants, whereas substantial discrepancies were observed for cocaine. In Germany, an important distinction could be made between Berlin, Dortmund and Munich, where cocaine and particularly amphetamine were more prevalent, and Dresden, where methamphetamine consumption was clearly predominant. Cocaine consumption was relatively homogenous in the larger urban areas of Switzerland, although prevalence and offences data suggested a more heterogeneous picture. Conversely, marked regional differences in amphetamine and methamphetamine consumption could be highlighted. Conclusions: Combining the available data allowed for a better understanding of the geographical differences regarding prevalence, typology and amounts of substances consumed. For cannabis and amphetamine-type stimulants, the complementarity of survey, police and wastewater data could be highlighted, although notable differences could be identified when considering more stigmatised drugs (i.e. cocaine and heroin). Understanding illicit drug consumption at the national scale remains a difficult task, yet this research illustrates the added value of combining complementary data sources to obtain a more comprehensive and accurate picture of the situation.
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