Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
|
pubmed:dateCreated |
1985-12-18
|
pubmed:abstractText |
Thyrotropin (thyroid stimulating hormone; TSH) stimulus to thyroid cells of horses and dogs resulted in increased serum triiodothyronine (T3) concentrations that were detected earlier than those of thyroxine (T4). Doubling of the base-line T3 values in horses was detected 0.5 hours after injection of 5 IU of TSH IV, with peak response of 5 times base-line value detected 2 hours after injection. Doubling of T4 values in horses was noticed between 2 and 3 hours, with the peak response of 2.4 times base-line value at 4 hours after injection of TSH. Doubling of base-line T3 values in dogs in response to 0.2 IU TSH/kg of body weight (IV-5 IU maximum dose) was noticed at 1 hour, whereas T4 response doubled between 1.5 and 2 hours. Peak release of T3 and T4 in response to TSH in dogs had not developed by 4 hours; however, the percentage increase over base-line values was greater for T3 than T4 at early sampling time points, and this response has resulted in an increased T3/T4 ratio in hypothyroid dogs. Thus, in both dogs and horses, these studies indicated that T3 response to TSH could be used as a measure of thyroid function at earlier time intervals after TSH administration than one measures T4 response.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Nov
|
pubmed:issn |
0003-1488
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
1
|
pubmed:volume |
187
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
931-4
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:4055518-Animals,
pubmed-meshheading:4055518-Dog Diseases,
pubmed-meshheading:4055518-Dogs,
pubmed-meshheading:4055518-Female,
pubmed-meshheading:4055518-Horses,
pubmed-meshheading:4055518-Hypothyroidism,
pubmed-meshheading:4055518-Injections, Intramuscular,
pubmed-meshheading:4055518-Injections, Intravenous,
pubmed-meshheading:4055518-Male,
pubmed-meshheading:4055518-Stimulation, Chemical,
pubmed-meshheading:4055518-Thyroid Function Tests,
pubmed-meshheading:4055518-Thyrotropin,
pubmed-meshheading:4055518-Thyroxine,
pubmed-meshheading:4055518-Time Factors,
pubmed-meshheading:4055518-Triiodothyronine
|
pubmed:year |
1985
|
pubmed:articleTitle |
Thyrotropin stimulation test--new perspective on value of monitoring triiodothyronine.
|
pubmed:publicationType |
Journal Article,
Comparative Study
|