Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4-5
pubmed:dateCreated
2001-3-6
pubmed:abstractText
A very sensitive time-resolved fluoroimmunoassay for the prothoracicotropic hormone (PTTH) of the silkworm Bombyx mori has been established. The lower limit of detection in this assay was 0.1 pg. With this assay method, the amounts of PTTH in the central nervous system and hemolymph were quantified. PTTH was detected only in the brain within the central nervous system, and, in the fifth instar, its content in the brain increased gradually with larval growth and decreased rapidly after the beginning of wandering. A substantial amount of PTTH was also found in the retrocerebral complex of day-3 fifth instar larvae, accounting for 28% of total PTTH. The PTTH titer in hemolymph changed dramatically during Bombyx development, with a small peak in the middle of the fourth instar, medium-sized peaks at the wandering and prepupal stages in the fifth instar, and a large prolonged peak during early pupal-adult development. The changes were overall closely correlated with those in hemolymph ecdysteroid titer. However, some unexpected aspects of PTTH dynamics in hemolymph have also been disclosed. Based on these observations, the significance of PTTH secretion in the control of insect development is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0965-1748
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
349-58
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Developmental profile of the changes in the prothoracicotropic hormone titer in hemolymph of the silkworm Bombyx mori: correlation with ecdysteroid secretion.
pubmed:affiliation
Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Japan. mizoguch@bio.nagoya-u.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't