Measurement of platelet P-selectin for remote testing of platelet function during treatment with clopidogrel and/or aspirin.

There is great interest in assessing the efficacy of treatment with clopidogrel and aspirin in patients with cardiovascular disease using procedures that can be used in a remote setting. Here we have established methods to assess the effects of clopidogrel and aspirin on platelets based on measurements of platelet P-selectin. Platelets were stimulated in whole blood by adding the combination of adenosine diphosphate and the TXA(2) mimetic U46619 (ADP/U4, designed to assess P2Y(12) inhibition) or the combination of arachidonic acid and epinephrine (AA/Epi, designed to assess COX-1 inhibition).

Chromosomal losses of regions on 5q and lack of high-level amplifications at 8q24 are associated with favorable prognosis for ovarian serous carcinoma.

In this study, we describe characteristic chromosomal alterations in a consecutive series of 96 serous ovarian tumors by comparative genomic hybridization. We analyze their association with different pathways of progression, histological grade, and clinical outcome. The most striking difference between low-grade and high-grade serous carcinomas was seen in a higher incidence of chromosomal gains at 3q and 20q and losses of 13q in the high-grade carcinomas.

In vitro susceptibility testing of four antibiotics against Borrelia burgdorferi: a comparison of results for the three genospecies Borrelia afzelii, Borrelia garinii, and Borrelia burgdorferi sensu stricto.

MICs and minimal bactericidal concentrations (MBCs) were evaluated for the four antibiotics azithromycin, amoxicillin, ceftriaxone, and doxycycline against the three main genospecies of Borrelia burgdorferi sensu lato. In MBC testing, statistically significant differences between the genospecies could be found in 7 out of 12 comparative evaluations (P < 0.05).

[Borrelia burgdorferi Group: in-vitro antibiotic sensitivity].

Unlabelled: Failures in the antibiotic therapy of Lyme disease have repeatedly been demonstrated by post-treatment isolations of the infecting borreliae. Analyses of the antibiotic susceptibility patterns of borreliae may help to understand the causes of such treatment failures and to develop new therapeutic regimens.

Aims And Methods: The three subspecies of Borrelia burgdorferi known to be pathogenic for humans and to differ in their virulence and organ affinity possibly may also show divergent susceptibilities to some common antibacterial agents.