Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-7-28
pubmed:abstractText
The possibility that steroid hormones play a role in vestibular schwannoma proliferation has been suggested by a number of investigators. There is conflicting information about the presence of steroid hormone receptors in these tumors. The aim of this study was to examine the expression of androgen, progesterone, glucocorticoid and estrogen receptor messenger ribonucleic acid levels (mRNA) in twenty-one vestibular schwannomas by either Northern blot analysis or the polymerase chain reaction (PCR). Glucocorticoid receptor mRNA was expressed in all twenty-one tumors examined. Only two male specimens were positive for androgen receptor mRNA expression by PCR-Southern blot analysis. Thirty-three percent of the schwannomas (7/21) showed a strong band for progesterone receptor mRNA by PCR-Southern blot analysis; there were an equal number of males and females in this group. Estrogen receptor mRNA levels were undetectable in all tumors examined by PCR-Southern blot analysis. These studies suggest that the pattern of steroid receptor expression is different in schwannomas than in meningiomas. Individual vestibular schwannomas need to be examined for their steroid receptor mRNA expression mRNA expression to know whether they will be responsive.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0001-6268
pubmed:author
pubmed:issnType
Print
pubmed:volume
139
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
188-92; discussion 193
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed-meshheading:9143583-Adult, pubmed-meshheading:9143583-Aged, pubmed-meshheading:9143583-Blotting, Northern, pubmed-meshheading:9143583-Cell Division, pubmed-meshheading:9143583-Diagnosis, Differential, pubmed-meshheading:9143583-Female, pubmed-meshheading:9143583-Gene Expression Regulation, Neoplastic, pubmed-meshheading:9143583-Humans, pubmed-meshheading:9143583-Male, pubmed-meshheading:9143583-Middle Aged, pubmed-meshheading:9143583-Neuroma, Acoustic, pubmed-meshheading:9143583-Polymerase Chain Reaction, pubmed-meshheading:9143583-RNA, Messenger, pubmed-meshheading:9143583-Receptors, Androgen, pubmed-meshheading:9143583-Receptors, Cell Surface, pubmed-meshheading:9143583-Receptors, Estrogen, pubmed-meshheading:9143583-Receptors, Glucocorticoid, pubmed-meshheading:9143583-Receptors, Progesterone
pubmed:year
1997
pubmed:articleTitle
Hormone receptors in vestibular schwannomas.
pubmed:affiliation
Neurosurgical Laboratories, Brigham and Women's Hospital, Boston, USA.
pubmed:publicationType
Journal Article