In vitro study of pituitary adenoma's secretion.
Abstract
THE PURPOSE OF THIS STUDY WAS TO DETECT THE SECRETION OF GROWTH HORMONE (GH)AND PROLACTIN (PRL) FROM ADENOMAS ASSOCIATED WITH GH HYPERSECRETION, AS WELL AS FROM ADENOMAS, WHICH CLINICALLY CAUSED HYPEPROLACTINEMIA AND WERE ALSO IMMUNOPOSITIVE FOR PRL.THE REVERSE HEMOLYTIC PLAQUE ASSAY(RHPA) WAS APPLIED IN ORDER TO REVEAL POSSIBLE DIFFERENCES AMONG VARIOUS MORPHOLOGICAL ADENOMA TYPES, AS WELL AS TO EXAMINE THE INHIBITORY EFFECTS OF OCTREOTIDE ON GH RELEASE. TWENTY SURGICALLY RESECTED PITUITARY ADENOMAS FROM AN EQUAL NUMBER OF PATIENTS WERE STUDIED.THE PATIENTS WERE DIVIDED IN TWO GROUPS ACCORDING TO THEIR CLINICAL FINDINGS.THE FIRST GROUP WAS COMPOSED OF 15 ACROMEGALIC PATIENTS, WHILE THE SECOND OF 5 PATIENTS WITH NEUROLOGICAL SIGNS AS WELL AS HYPERPROLACTINEMIA.ALL ADENOMAS WERE DIAGNOSED BY HISTOLOGY, IMMUNOCYTOCHEMISTRY AND ELECTRON MICROSCOPY. IN THE FIRST GROUP 5 WERE DIAGNOSED AS DENSELY GRANULATED AND 5 AS SPARSELY GRANULATED SOMATOTROPH ADENOMAS, 2 AS MAMMOSOMATOTROPH AND 3 ...
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