Alcohol consumption and oxidative damage.
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8-Hydroxy-2'-Deoxyguanosine↗
Biomedical subjects
S Elmstahl
Publications and source records attributed to S Elmstahl.
Inverse correlation between alcohol consumption and lymphocyte levels of 8-hydroxydeoxyguanosine in humans.
In a cross-sectional study of 115 premenopausal non-smoking women, we examined the relationship between lymphocyte levels of 8-hydroxy-2'-deoxyguanosine (8-oxodGuo) and habitual alcohol consumption. The study was conducted in four different regions of Europe, including Potsdam (Germany), Turin (Italy), Malmö (Sweden) and Granada (Spain). Mean 8-oxodGuo levels differed significantly across study centres (P = 0.001), with the highest levels in Granada [2.17 8-oxodGuox10(-6) 2'-deoxyguanosine (95% confidence interval 1.27-4.40)] and lowest levels in Turin [1.19 (0.36-4.29)]. Mean levels of total alcohol intake and of types of alcoholic beverages consumed (wine, fortified wines, beer and cider) also differed across the study centres (P < 0.05), with the highest total alcohol consumption in Turin, and the lowest intake in GRANADA: When combining all the data, but adjusting for study centre, individual 8-oxodGuo level correlated inversely with alcohol intake. This inverse association remained unaltered after further adjustment for Quetelet Index, fruit and vegetable consumption, and plasma carotenoid levels. Furthermore, the inverse association was also observed for each of the study centres separately, and for different beverage types, with the exception of Granada, where the majority of women were non-drinkers and where alcohol intakes were also very low for the consumers. Finally, on a group level, mean levels of 8-oxodGuo and alcohol intake were also inversely associated between the four study centres. The finding of a relationship between alcohol consumption and 8-oxodGuo in lymphocytes was unexpected and not based on a prior hypothesis. This finding consequently requires confirmation from a randomized intervention study.
8-Hydroxy-2'-Deoxyguanosine↗
Precipitating and predisposing factors of acute confusional state among emergency department patients.
The aim of this study was to examine predisposing and precipitating factors of acute confusional state (ACS) retrospectively in medical records of patents examined in an acute medical unit (AMU) who had a preliminary diagnosis of confusion/anxiety. The study comprised all 221 patients who were 65 years old and older among the 18,015 patients examined in the AMU during 1 year who, after a preliminary examination in the AMU, received a diagnosis of confusion/anxiety without any other etiologic diagnosis. Fifty-six cases fulfilled the DSM-III-R criteria for ACS. The control group comprised 165 patients, with anxiety, depression, or psychosis the main finding in 135 cases. Among patients further examined in other departments or for whom consultations were made, the medical records showed that the ACS group had on average 2.6 predisposing factors for ACS, with dementia, cerebrovascular disease, and sensory deficits the most common. Three to six predisposing factors were found among 46% of the ACS patients, compared to 4% of the control group. A precipitating factor of ACS was found in 78% of the ACS cases, and the average number of precipitating factors was 1.6. Dementia (32%), metabolic disturbances (30%), and cardiovascular diseases (16%) were the most frequent precipitating factors among the ACS group. The mortality rates 2 years after examination in the AMU were 32% for the ACS group and 20% for the control group (p <.05). The study suggests that the causes of ACS are often multifactorial and that it is important to seek several precipitating factors when treating this potentially reversible condition.
Adult↗