intravenous ( i.v . ) injection of 4 micrograms kg-1 bacterial endotoxin ( lps ) in intact rabbits evoked with short latency an increase in metabolic rate and the typical cardiorespiratory activity pattern normally seen in cold defense , consisting of cutaneous vasoconstriction , a depression of respiratory rate and , as shown in a previous study , a decrease in renal sympathetic nerve activity while heart rate and arterial blood pressure is little altered .
C0014264
endotoxin
C0023810
lps