Linked Life Data

6820170

Source:http://linkedlifedata.com/resource/pubmed/id/6820170

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1983-5-5
pubmed:abstractText
High-performance liquid chromatography (HPLC) was used to investigate the degradation in vitro of several centrally-acting analogues of thyrotrophin-releasing hormone (TRH) by two subcellular fractions prepared from different areas of rat brain. Of the seven analogues studied, RX77368 (pGlu-His-(3,3'-dimethyl)-ProNH2) was the most stable analogue, showing only a small amount of degradation by the particulate fraction containing a pyroglutamyl aminopeptidase, whereas the other analogues (RX74355, CG3509, CG3703, [3MeHis]TRH, PGHPA and MK771) showed varying degrees of resistance to degradation by this enzyme and the proline endopeptidase in the soluble fraction. However, TRH was rapidly inactivated to its deamidated form, TRH-OH and the histidyl-proline diketopiperazine by both fractions. The relative stability of these TRH analogues to enzyme action may provide some explanation for their enhanced biological activity in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0167-0115
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-11
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Mechanisms of brain inactivation of centrally-acting thyrotrophin-releasing hormone (TRH) analogues: a high-performance liquid chromatography study.
pubmed:publicationType
Journal Article