Influence of acute renal failure on coronary vasoregulation in dogs.

Impaired renal function is associated with an increased risk for cardiovascular events and death, but the pathophysiology is poorly defined. The hypothesis that coronary blood flow regulation and distribution of ventricular blood flow could be compromised during acute renal failure (ARF) was tested. In two separate groups (n = 14 each) of dogs with ARF, (1) coronary autoregulation (pressure-flow relations), vascular reserve (reactive hyperemia), and myocardial blood flow distribution (microspheres) and (2) coronary vessel responses to intracoronary infusion of select endothelium-dependent and -independent vasodilators were evaluated.

Sporadic infections of Salmonella Paratyphi B, var. Java associated with fish tanks.

Objective: Identify a source of contamination to explain the increase in the number of cases of S. Paratyphi B var. Java infection.

[A case of zoonosis associated with Streptococcus equi ssp. zooepidemicus].

A sexagenarian couple operating a dairy farm, where there were also many horses, suffered a severe respiratory infection associated with the bacterium Streptococcus equi ssp. zooepidemicus. The investigation revealed that the source of infection was due to contacts with a horse having an infected wound from which we isolated this zoonotic agent.