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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1981-11-22
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pubmed:abstractText |
The parenteral administration of bacterial endotoxin to rats causes a hypothermia that is maximal after approximately 90 minutes. When endotoxin-injected rats were held in a controlled environment at 22 degree C and 50% relative humidity and exposed for 90 minutes to microwaves (2450 MHz, CW) at 1 mW/cm2, significant increases were observed in body temperature compared with endotoxin-treated, sham-irradiated rats. The magnitude of the response was related to power density (10 mW/cm2 greater than 5 mW/cm2 greater than 1 mW/cm2). Saline-injected rats exposed for 90 minutes at 5 mW/cm2 (specific absorption rate approximately 1.0 mW/g) showed no significant increase in body temperature compared with saline-injected, sham-irradiated rats. The hypothermia induced by endotoxin in rats was also found to be affected by ambient temperature alone. Increases in ambient temperature above 22 degree C in the absence of microwaves caused a concomitant increase in body temperature. This study reveals that subtle microwave heating is detectable in endotoxin-treated rats that have impaired thermoregulatory capability. These results indicate that the interpretation of microwave-induced biological effects observed in animals at comparable rates and levels of energy absorption should include a consideration of the thermogenic potential of microwave.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0197-8462
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
1
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
353-61
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:7284032-Acclimatization,
pubmed-meshheading:7284032-Animals,
pubmed-meshheading:7284032-Body Temperature,
pubmed-meshheading:7284032-Endotoxins,
pubmed-meshheading:7284032-Lipopolysaccharides,
pubmed-meshheading:7284032-Male,
pubmed-meshheading:7284032-Microwaves,
pubmed-meshheading:7284032-Rats,
pubmed-meshheading:7284032-Time Factors
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pubmed:year |
1980
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pubmed:articleTitle |
Microwave radiation (2450 MHz) alters the endotoxin-induced hypothermic response of rats.
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pubmed:publicationType |
Journal Article
|