| 1. |
|
|
| 2. |
- Balldin, Jan, 1935, et al.
(författare)
-
Gamma-glutamyltransferase in alcohol use disorders: Modification of decision limits in relation to treatment goals?
- 2010
-
Ingår i: Scandinavian journal of clinical and laboratory investigation. - : Informa UK Limited. - 1502-7686 .- 0036-5513. ; 70:2, s. 71-74
-
Tidskriftsartikel (refereegranskat)abstract
- Abstract Serum gamma-glutamyltransferase (GGT) is recommended as a marker for alcohol use disorders by the Swedish National Guidelines for Addiction, although it has a low sensitivity and specificity. GGT is inexpensive and easily accessible but additional knowledge is required on how to use the marker in patients with various levels of alcohol intake. Levels of GGT were obtained from 37 male social drinkers (< 100 grams pure alcohol weekly) and 18 former alcohol-dependent males with long-term (6 +/- 5 years) abstinence. Reproducibility was calculated through repeated blood samplings. Mean serum activity of GGT, in former alcohol-dependent males, was 0.26 microkat/L with an intra-class correlation coefficient of 0.85. In social drinkers, these figures were 0.34 microkat/L and 0.92, respectively. In treatment of males, with the goal of abstinence, upper reference limit is suggested to be 0.40 microkat/L. Goals of non-harmful drinking (< 100 grams weekly) suggest higher limits (0.62 microkat/L). Thirty percent increase of GGT should be suggestive of relapse.
|
|
| 3. |
- Balldin, Jan, 1935, et al.
(författare)
-
Inverse relationship between central serotonergic neurotransmission and blood pressure in alcohol-dependent male subjects
- 2006
-
Ingår i: Journal of Neural Transmission. ; 113, s. 1511-1517
-
Tidskriftsartikel (refereegranskat)abstract
- Data has accumulated indicating an inverse relation between central serotonergic (5-HT) neurotransmission and blood pressure in hypertensive rats and in healthy individuals. The present study aimed to elucidate whether an inverse relation exists between systolic (SBP) and diastolic (DBP) blood pressure levels and central 5-HT neurotransmission also in a group of alcohol-dependent individuals. Central 5-HT neurotransmission was assessed by using the maximum prolactin (PRL) responses to the 5-HT probe DL-fenfluramine (DL-FEN; 60 mg po.) in 17 alcohol-dependent male subjects investigated during a period of on-going alcohol intake. BP was measured immediately before all time points for blood sampling, and readings before DL-FEN administration were used as the subjects resting BP. Results showed that there were inverse correlations between the maximum PRL responses to DL-FEN and the SBP levels (r = -0.57, p < 0.002) and with the DBP levels (r = -0.52, p < 0.05), respectively. The present study suggests the existence of an association between central 5-HT neurotransmission and blood pressure regulation also in alcohol-dependent individuals.
|
|
| 4. |
- Balldin, Jan, 1935, et al.
(författare)
-
TAQ1A1 Allele of the DRD2 Gene Region Contribute to Shorter Survival Time in Alcohol Dependent Individuals When Controlling for the Influence of Age and Gender. A Follow-up Study of 18 Years.
- 2018
-
Ingår i: Alcohol and Alcoholism. - : Oxford University Press (OUP). - 1464-3502 .- 0735-0414. ; 53:3, s. 216-220
-
Tidskriftsartikel (refereegranskat)abstract
- To investigate the influence of the A1 allele of the TAQ1A polymorphism in the dopamine D2 receptor (DRD2) gene region on mortality in adult individuals with alcohol dependence.The study sample consisted of 359 alcohol-dependent individuals treated for severe alcohol withdrawal symptoms in 1997. Years of survival was studied in an 18-year follow-up. In the analyses, gender and age were controlled for.At the 18-year follow-up, 53% individuals had deceased. The analyses showed that older age (P < 0.001), male gender (P < 0.05) and carrying the A1 allele (P < 0.01) all significantly and independently contributed to shorten years of survival. Among the deceased individuals, the genotype A1+ was the only significant contributor to shorten years of survival.An important contribution of the present study is that in alcohol dependence the Taq1A1 allele of the DRD2 gene region is a risk factor for premature death of similar importance as the well-known risk factors of age and gender.We investigated the influence of A1 allele of the TAQ1A polymorphism in DRD2 receptor gene region on mortality in alcohol-dependent individuals in an 18-year follow-up. Age, gender and the A1 allele contributed to shorten years of survival. Among the deceased, the A1+ was the only contributor to shorten years of survival.
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Berggren, Ulf, 1948, et al.
(författare)
-
Different effects of smoking or use of smokeless tobacco on platelet MAO-B activity in type 1 alcohol-dependent subjects.
- 2007
-
Ingår i: Alcohol and alcoholism (Oxford, Oxfordshire). - : Oxford University Press (OUP). - 0735-0414 .- 1464-3502. ; 42:3, s. 267-71
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Low platelet monoamine oxidase (MAO)-B activity has been proposed as a marker for alcohol-dependence. Findings are, however, contradictory and the influence of confounding factors have been thoroughly investigated. Thus, it is now well established that cigarette smoking reduces platelet MAO-activity. However, not much is known about the influence of smokeless tobacco, i.e. snuff or chewing tobacco, on platelet MAO-B activity. The aim of the present study was to compare platelet MAO-B activity in type 1 alcohol-dependent subjects with concomitant use of smokeless tobacco (i.e. snuff users), use of smoking tobacco (i.e. cigarette smokers), and in those without any tobacco use. METHODS: Platelet MAO-B activity was examined in three groups of alcohol-dependent subjects: snuff users (n = 14), cigarette smokers (n = 33), and non-tobacco users (N = 46). RESULTS: In the alcohol-dependent subjects concomitant cigarette smokers, but not snuff users, were found to have significantly lower platelet MAO-B activity as compared to non-tobacco users (platelet MAO-B activity 4.0 +/- 1.5, 5.1 +/- 1.5 and 5.0 +/- 1.9 microkat/kg protein, respectively). CONCLUSIONS: The findings in the present study suggests that in the alcohol-dependent subjects the concomitant use of smokeless tobacco, i.e. snuffing, does not have an inhibitory effect on platelet MAO-B activity. This may have implications for future research. Thus, alcohol-dependent subjects with concomitant tobacco use should be grouped separately according to the form of the tobacco used, i.e. smoking or smokeless tobacco.
|
|
| 8. |
- Berggren, Ulf, 1948, et al.
(författare)
-
Dopamine D2 Receptor Genotype Is Associated with Increased Mortality at a 10-Year Follow-up of Alcohol-Dependent Individuals.
- 2010
-
Ingår i: Alcohol and alcoholism. - : Oxford University Press (OUP). - 1464-3502 .- 0735-0414. ; 45:1, s. 1-5
-
Tidskriftsartikel (refereegranskat)abstract
- AIMS: Because the TAQ1 A1 allele may be associated with alcohol-related medical illnesses, and medical illnesses in alcohol-dependent individuals are associated with increased mortality, we test the hypothesis that the TAQ1 A1 allele of the DRD2 gene is associated with increased mortality in alcohol-dependent individuals. METHODS: Following an index treatment episode, a 10-year follow-up study in 366 alcohol-dependent individuals was performed. The TAQ1 A1/A2 DRD2 genotype and allele frequencies were compared between those deceased and those still living at the 10-year point. In addition, the genotype and allele frequencies of these alcohol-dependent individuals were compared to that in 578 control subjects. RESULTS: The prevalence of the A1 allele differed between the deceased and living patients and the controls: 47% of the deceased were A1+, compared to 37% of the living patients and 32% of the controls. The frequency of the TAQ1 A1/A2 genotype also differed between the groups. Thus, 43% had the A1/A2 genotype in comparison with 32% in the living patients and 29% in the controls. The TAQ 1 A1 allele frequency differed between the groups. The frequency of A1 allele was 25% in the deceased patients compared to 21% in the living patients and 17% in the controls. CONCLUSION: The TAQ I A1 allele of the DRD2 gene (or DRD2 gene region) was associated with increased mortality over a 10-year period in alcohol-dependent individuals.
|
|
| 9. |
- Berggren, Ulf, et al.
(författare)
-
Extremely long recovery time for the sedative effect of clonidine in male type 1 alcohol-dependent subjects in full sustained remission
- 2002
-
Ingår i: Alcohol. - 0741-8329. ; 28, s. 181-187
-
Tidskriftsartikel (refereegranskat)abstract
- The possible relation between alpha-2-adrenoceptor function - as assessed by changes in systolic and diastolic blood pressure and heart rate, as well as level of sedation, after administration of clonidine (2.0 μg/kg, i.v.) - and length of time of alcohol dependence or duration of remission was investigated in 17 male subjects with alcohol dependence in full sustained remission. Six healthy males were used as control subjects. The clonidine-induced scores for level of sedation were found to correlate with duration of time in remission (r = 0.60; P < .02). Median split of duration of remission revealed that subjects with short-term (2 ± 1 years) duration of remission had significantly lower scores for clonidine-induced level of sedation than the scores for both subjects with long-term (12 ± 5 years) duration of remission (P < .004) and control subjects (P < .02). There was also a significant correlation between duration of remission and values for clonidine-induced reduction of systolic blood pressure (r = 0.51; P < .05). Results indicate an extremely long recovery period in some aspects of alpha-2-adrenoceptor function, especially for clonidine-induced increase in level of sedation, with a normalization time of 4 to 5 years. © 2002 Elsevier Science Inc. All rights reserved.
|
|
| 10. |
- Berggren, Ulf, et al.
(författare)
-
Is long-term heavy alcohol consumption toxic for brain serotonergic neurons? Relationship between years of excessive alcohol consumption and serotonergic neurotransmission.
- 2002
-
Ingår i: Drug and alcohol dependence. - 0376-8716. ; 65:2, s. 159-65
-
Tidskriftsartikel (refereegranskat)abstract
- The relationship between years of excessive alcohol consumption and central serotonergic neurotransmission, as assessed by the prolactin (PRL) response to D-fenfluramine, was investigated in 22 male alcohol-dependent subjects. A negative correlation was obtained, that is, the longer duration of excessive alcohol consumption the lower PRL response to D-fenfluramine. It is therefore suggested that long duration of excessive alcohol consumption in alcohol-dependent subjects causes a reduction in central serotonergic neurotransmission, possibly by a toxic effect of alcohol on serotonin neurons. The relationship between depressive and anxiety symptoms during on-going drinking and the PRL response to D-fenfluramine was also investigated. No such correlations were obtained, suggesting that reduction in central serotonergic neurotransmission does not pre-dispose to the development of depressive and anxiety symptoms, at least in relation to on-going drinking in alcohol-dependent subjects.
|
|
