[Observations on the specificity of staining of phosphotungstic and phosphomolybdic acid].
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Biomedical subjects
Publications and source records attributed to G Lauro.
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The immunohistochemical localization of beta-endorphin in the normal testis (two patients) and in the pathologic testis (two cases of Sertoli Cell Only Syndrome, two cases of Klinefelter Syndrome, two cases of post-orchitis tubular sclero-hialinosis) was investigated. No beta-endorphin immunostaining was detected in the normal testis, while positive beta-endorphin immunostaining has been observed in pathologic tissues. These results indicate that, as in animals, beta-endorphin is present in human Leydig cells and may play a local role in regulating male reproductive function.
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Although several attempts at the immunohistochemical characterization of histiocytosis have recently been made there is only one paper which reports a case of cerebral Langerhans cell histiocytosis (LCH) diagnosed by biopsy. This paper presents a bioptically diagnosed case of juvenile histiocytosis. The panel of antibodies used was as follows: anti-S-100, 2 different antibodies to anti-interleukin 2, anti-lysozyme, anti-LEU M1, anti-MAC 387, anti-major histocompatibility complex II and anti-GFAP. Microglia markers--Griffonia simplicifolia and RCA 1 lectins were also utilized. The proliferating cells produced a positive response to S-100, lysozyme and a partially positive response to HLA DR, but responded negatively to MAC 387, LEU M1, lectins, IL2R and GFAP. Our results were compared and analyzed in the light of those obtained by other authors.