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Fever responses in newborn lambs. 1992

K Goelst, and D Mitchell, and H Laburn
Department of Physiology, University of the Witwatersrand Medical School, Parktown, South Africa.

Neonatal lambs failed to respond with an increase in body temperature to i.v. injection of both endotoxin (0.4 microgram/kg), a Gram-negative bacterial pyrogen, and the cell walls of Staphylococcus aureus (1 x 10(9), a Gram-positive bacterial pyrogen. However, the fall in serum iron concentration that normally accompanies injection of both the pyrogens in adults was not attenuated in the neonates. We believe that the central nervous system origin of the fever pathway is suppressed in neonatal lambs.

UI MeSH Term Description Entries
D007501 Iron A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN. Iron-56,Iron 56
D001831 Body Temperature The measure of the level of heat of a human or animal. Organ Temperature,Body Temperatures,Organ Temperatures,Temperature, Body,Temperature, Organ,Temperatures, Body,Temperatures, Organ
D004731 Endotoxins Toxins closely associated with the living cytoplasm or cell wall of certain microorganisms, which do not readily diffuse into the culture medium, but are released upon lysis of the cells. Endotoxin
D005334 Fever An abnormal elevation of body temperature, usually as a result of a pathologic process. Pyrexia,Fevers,Pyrexias
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000831 Animals, Newborn Refers to animals in the period of time just after birth. Animals, Neonatal,Animal, Neonatal,Animal, Newborn,Neonatal Animal,Neonatal Animals,Newborn Animal,Newborn Animals
D012756 Sheep Any of the ruminant mammals with curved horns in the genus Ovis, family Bovidae. They possess lachrymal grooves and interdigital glands, which are absent in GOATS. Ovis,Sheep, Dall,Dall Sheep,Ovis dalli
D013203 Staphylococcal Infections Infections with bacteria of the genus STAPHYLOCOCCUS. Infections, Staphylococcal,Staphylococcus aureus Infection,Staphylococcal Infection,Staphylococcus aureus Infections

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