No abstract available

No abstract available

[en] Treatment can transform the metastases of nonseminomatous germ cell carcinoma into histologically mature teratoma. These lesions typically have a benign clinical course. The authors present a case of leiomyosarcoma occurring within such a lesion. It arose 18 years after therapy for metastatic embryonal carcinoma of the testis and appears to have been radiation induced

[en] Adherent, high-reflectivity infrared, and multilayer dielectric coatings have been applied to diamond-turned aluminum, copper, and electroless nickel substrates. Samples passed cheesecloth, Scotch tape, salt fog, and humidity tests

[en] Human brain tumors and nude mouse-borne human neuroblastomas and gliomas were analyzed for sigma and opioid receptor content. Sigma binding was assessed using [³H] 1, 3-di-o-tolylguanidine (DTG), whereas opioid receptor subtypes were measured with tritiated forms of the following: μ, [D-ala², mePhe⁴, gly-ol⁵] enkephalin (DAMGE); κ, ethylketocyclazocine (EKC) or U69,593; δ, [D-pen², D-pen⁵] enkephalin (DPDPE) or [D-ala², D-leu⁵] enkephalin (DADLE) with μ suppressor present. Binding parameters were estimated by homologous displacement assays followed by analysis using the LIGAND program. Sigma binding was detected in 15 of 16 tumors examined with very high levels found in a brain metastasis from an adenocarcinoma of lung and a human neuroblastoma (SK-N-MC) passaged in nude mice. κ opioid receptor binding was detected in 4 of 4 glioblastoma multiforme specimens and 2 of 2 human astrocytoma cell lines tested but not in the other brain tumors analyzed

No abstract available