Lactobacilli supposedly have low pathogenicity; they are seldom detected in blood culture. Lactobacillus rhamnosus GG, which originates indigenously in the human intestine, became available for use as a probiotic in 1990 in Finland. We evaluated the possible effects of the increased probiotic use of L. rhamnosus GG on the occurrence of bacteremia due to lactobacilli. Lactobacilli were isolated in 0.02% of all blood cultures and 0.2% of all blood cultures with positive results in Helsinki University Central Hospital and in Finland as a whole, and no trends were seen that suggested an increase in Lactobacillus bacteremia. The average incidence was 0.3 cases/100,000 inhabitants/year in 1995-2000 in Finland. Identification to the species level was done for 66 cases of Lactobacillus bacteremia, and 48 isolates were confirmed to be Lactobacillus strains. Twenty-six of these strains were L. rhamnosus, and 11 isolates were identical to L. rhamnosus GG. The results indicate that increased probiotic use of L. rhamnosus GG has not led to an increase in Lactobacillus bacteremia.
These mild white matter hyperintensities in the neurologically nondiseased elderly related especially to age and also to concomitant silent infarcts, atrophy, and some vascular risk factors. The known factors, however, explained only part of the variation. The young-old and old-old groups showed different associations. In contrast to former assumptions, the presence of white matter hyperintensities among the aged is likely to be linked to other as yet unidentified age-related factors.
We report the association between hostility and the incidence of ischemic heart disease (IHD) in 3,750 Finnish men aged 40-59. Hostility was assessed from self-ratings on irritability, ease of anger-arousal, and argumentativeness, and four groups were formed from the summed hostility ratings. At baseline, the age-adjusted relative risk (RR) of the prevalence of angina pectoris between the highest and lowest hostility groups was 2.88 (95% confidence limits (CL), range 1.71-4.77). A three-year follow-up yielded 65 deaths and 109 IHD-incident cases. Hostility did not predict IHD among healthy men, but among men with previous IHD and hypertension (N = 104), the age-adjusted RR of IHD between the highest and lowest hostility groups was 12.9 (95% CL, 3.92-42.6). After standardization for smoking, obesity, heavy alcohol use, and snoring, the RR was 14.6 (95% CL, 1.94-110). When the degree of dyspnea at baseline was also standardized, the RR was 21.1 (95% CL, 1.59-282). Our data suggest that extreme hostility is not a consequence of symptom severity; rather, hostility is a strong determinant of coronary attack among hypertensive men with IHD.
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