Background—Few studies have quantified the relation between carotid plaques and stroke in asymptomatic patients, and limited data exist on the importance of location of plaques or the association with subtypes of cerebral infarction. We investigated the relationship between carotid plaques, measured at different locations, and risk of stroke and subtypes of cerebral infarction in a population-b...

BACKGROUND Few studies have quantified the relation between carotid plaques and stroke in asymptomatic patients, and limited data exist on the importance of location of plaques or the association with subtypes of cerebral infarction. We investigated the relationship between carotid plaques, measured at different locations, and risk of stroke and subtypes of cerebral infarction in a population-b...

Recombinants between two different influenza C viruses were isolated. In MDCK (canine kidney) cells, one strain, C/JJ/50, caused lytic plaques, whereas C/JHG/66 virus did not produce clear plaques. From a mixed infection of MDCK cells with C/JHG/66 virus and UV-inactivated C/JJ/50 virus, clones were isolated which possessed the clear-plaque phenotype. Fingerprint analyses indicated that the RNA...

Bacteriophage TSP-1 was isolated from soil in a search for phage which would form plaques on Bacillus subtilis W168 at 53 C. It forms clear plaques only at temperatures from 50 to 55 C. Approximately 95% of the free phage adsorb after 2 min at 53 C. The lytic cycle is between 55 and 60 min long with a burst size of about 55 particles per infected bacterium. The phage was shown to contain double...

It remains a vital clinical issue how to diagnose malignant atheromatous plaques consisting of ulcerative plaque and hemorrhagic plaque, which are potential risks for thrombosis and the arterial spasm. This study proposes further investigations to develop methods in order to detect this type of lesions by echocardiography. In this study, we tested high frequency (7.5 MHz) US and 1.0 T MRI (T1 w...

T he risk of Alzheimer's disease may come down to the expression of various forms of the human apolipoprotein E gene (apoE). Jean-Cosme Dodart and colleagues 1 have recently shown that injecting a variant of apoE into the brains of mice has an effect on the formation of the amyloid plaques characteristic of Alzheimer's disease. Their research contributes more evidence that apoE is a major risk ...

Erwinia amylovora bacteriophages (phages) belonging to the Myoviridae and Podoviridae families demonstrated a preference for either high-exopolysaccharide-producing (HEP) or low-exopolysaccharide-producing (LEP) bacterial hosts when grown on artificial medium without or with sugar supplementation. Myoviridae phages produced clear plaques on LEP hosts and turbid plaques on HEP hosts. The reverse...

The nature of the phage typing reactions on Brucella species was determined by rates of adsorption and infection, one-step growth experiments, and susceptibility to lysis from without. The highest rates of adsorption and infection were obtained on smooth B. abortus cultures, and large clear plaques were produced. One or a few phage particles per B. neotomae cell killed about one-half of the cel...

Mutants of phage P22 which form plaques on a P22 lysogen have been isolated. These virulent mutants have been classified into three groups. (i) VirA mutants arise spontaneously in wild-type stocks and form very small turbid plaques on a P22 lysogen. The single mutation responsible for VirA virulence maps near the mnt locus, one of the immunity regions of phage P22. (ii) VirB mutants do not aris...