Spontaneous alternation in adult rabbits

Spontaneous Arteriosclerosis in Rabbits

Spontaneous Alternation Behavior in Human Neutrophils

Spontaneous Aortic Lesions in Rabbits

Lesions in the rabbit aorta that occur spontaneously and contain no lipid consist of intimal mesenchymal proliferation and of medial sclerosis. Although the relationship of diet-induced atheroma to the intimal mesenchymal alterations is still not clear, our experiments have established that (a) the morphologic characteristics of diet-induced atheroma and of the spontaneous medial lesions are di...

Spontaneous alternation in marine crabs: invasive versus native species.

Organisms ranging from paramecia to humans tend to explore places that have been least recently explored, which is referred to as spontaneous alternation. Although organisms rely on different sources of information in alternating between places, the emergent behavioral pattern is likely advantageous during exploration and foraging. Under this rationale, continuous spontaneous alternation perfor...

Interleukin-4 inhibits spontaneous sleep in rabbits.

Proinflammatory cytokines, including interleukin-1β (IL-1β) and tumor necrosis factor-α, are involved in sleep regulation. IL-4 is an antiinflammatory cytokine that inhibits proinflammatory cytokine production. The hypothesis that IL-4 should attenuate sleep was studied by determining the effects of IL-4 on rabbit spontaneous sleep. Thirty-six rabbits were used. Four doses of IL-4 (0.25, 2.5, 2...