Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1992-2-27
pubmed:abstractText
Melatonin (MLT) secretion was examined in six normal pressure hydrocephalus (NPH) patients before and after ventriculoperitoneal (VP) shunt surgery. Ten healthy subjects were used as controls. Venous blood samples were taken daily at 2 p.m., 8 p.m., 2 a.m., and 8 a.m. Radioimmunoassay of MLT used a new specific antiserum and separation method achieving low cross-reactivity and high-efficiency MLT separation. Plasma levels in the control group at 2 p.m. and 2 a.m. were significantly different, showing diurnal rhythm (DR). The patients' MLT levels before VP shunt were significantly lower than control levels and the DR was absent. Postoperatively, the values were significantly different from preoperative values only at 2 a.m., but the DR reappeared. Thus, in NPH, VP shunt surgery improved the melatonin DR, probably through normalization of the dilated third ventricle.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0470-8105
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
490-7
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Melatonin secretion in normal pressure hydrocephalus after cerebral aneurysm rupture--investigation before and after ventriculoperitoneal shunt.
pubmed:affiliation
Department of Surgical Neurology, Jichi Medical School, Omiya Medical Center.
pubmed:publicationType
Journal Article, Case Reports