... and develop behavioral fever when injected with lipopolysaccharide (LPS). Therefore, we tested the hypothesis that the POA plays a role in the behavioral fever induced by LPS in the toad Bufo paracnemis . We made electrolytic lesions in the POA of toads (0.3 mA, 8 s) and measured preferred T b using a thermal...

... capillaries. Previous studies have shown that lung atrial natriuretic factor (ANF) may have an important physiological function in preventing edema in mammals. In this study, we report the presence of the complete ANF system in the lungs of the toad Bufo paracnemis . Radioimmunoassay of tissue homogenates...

...Luiz G. S. Branco; Mogens L. Glass ABSTRACT The modality of the O 2 drive to breathe was evaluated in unanaesthetized Bufo paracnemis . Carbon monoxide (CO) hypoxia was applied to reduce (arterial O 2 content). Arterial was reduced through inspiration of hypoxic gas mixtures (hypoxic hypoxia...

...Tobias Wang; Luiz G. S. Branco; Mogens L. Glass ABSTRACT The ventilatory and cardiovascular effects of a decreased O 2 -carrying capacity of the blood were evaluated in the toad Bufo paracnemis . Pulmonary ventilation was monitored using a pneumotachographic technique. Chronic arterial catheters...