A combination of high preoperative serum PSA and high expression of TMPRSS2-ERG could be promising in distinguishing those tumors that are aggressive and life-threatening.

Abstract:Objectives: To identify factors involved in reno-pulmonary interactions during mechanical ventilation. Materials and methods:The study included a total of 25 domestic piglets. The animals were divided into three groups based on different strategies of ventilation. Group A; spontaneously breathing piglets; group B animals ventilated with tidal volume of 6 ml.kg -1 and group C with animals ventilated with tidal volume 10 ml.kg -1 . Clinical monitoring and laboratory tests were performed for all groups at baseline and then at 1 hour and 12 hours for groups B and C. Ventilation indices, hemodynamics, urine output, creatinine clearance, glomerular fi ltration index, fractional excretion of sodium, free water clearance and tissue samples were recorded. The data obtained were statistically analysed. Results: Lower creatinine clearance and renal indices were seen in group B (p < 0.05) and in group C (p < 0.001) at 1 hour, and a difference in urine output for group C (p < 0.01) compared to group A was observed. At 12 hours, there was a further reduction in creatinine clearance and renal indices for group B (p < 0.05) and group C (p < 0.01). The lung mechanics and hemodynamics were not signifi cantly infl uenced. Conclusions:The study showed a causal relationship between renal dysfunction and positive pressure mechanical ventilation with respect to tidal volume and time (Tab. 4, Fig. 2, Ref. 17). Text in PDF www.elis.sk.

Quantitative tracking of Borrelia afzelii has shown that its transmission cycle differs from the salivary route of B. burgdorferi transmission by Ixodes scapularis. Borrelia afzelii are abundant in the guts of unfed Ixodes ricinus nymphs and their numbers continuously decrease during feeding. In contrast, spirochetes are not present in the salivary glands. Borrelia afzelii transmission starts during the early stages of feeding, spirochetes could be detected in murine skin within 1 day of tick attachment. Tick saliva is not essential for B. afzelii infectivity, the main requirement for successful host colonization being a change in outer surface protein expression that occurs in the tick gut during feeding. Spirochetes in vertebrate mode are able to survive within the host even if the tick is not present. On the basis of our data we propose that a direct ‘gut-to-mouth’ route of infection appears to be the main route of B. afzelii transmission.ImportanceLyme borreliosis is the most common vector-borne disease in the USA and Europe. The disease is caused by the Borrelia spirochetes and is transmitted through Ixodes ticks. A better understanding of how Borrelia spirochetes are transmitted is crucial for development of efficient vaccines for preventing Lyme borreliosis. Here we present that the transmission of European B. afzelii spirochetes by I. ricinus ticks significantly differs from the model transmission cycle described for American B. burgdorferi/I. scapularis. We suggest that B. afzelii is not transmitted via salivary glands but most likely through the ‘midgut to mouthpart’ route. We further demonstrate that tick saliva is not important for B. afzelii transmission and infectivity. Therefore, we support early studies by Willy Burgdorfer, who proposed that Borrelia transmission occurs by regurgitation of infected gut contents. Our findings collectively point to the Borrelia-tick midgut interface as the correct target in our endeavours to combat Lyme borreliosis.

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