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Biomedical subjects

M Monaco

Publications and source records attributed to M Monaco.

At least 73 records · Page 4Linked to original sources

The induction of forward gene mutation and gene conversion in yeasts by treatment with cyclophosphamide in vitro and in vivo.

The present paper assesses the most suitable conditions for metabolic activation with yeasts in vitro, at least as far as cyclophosphamide (Cy) is concerned. These include treatment time, incubation temperature, the amounts of S9 and cofactors. Particular attention is devoted to the use of various solvents, showing that their use can considerably affect the mutagenic response of the chemical being tested. It also examines the effects of enzyme inducers (by using S9 from rats and mice) such as phenobarbital (PB) and 5,6-benzoflavone (BF) administered separately or together. The metabolizing capability of other organs such as the lungs and kidneys is also determined. All these data are compared with Cy genotoxicity (in vivo) evaluated by the intrasanguineous host-mediated assay and by recovering the yeast target cells from the liver, lung and kidneys. The most striking effects are that, in vitro, PB greatly enhances Cy genotoxicity, whilst in vivo it substantially reduces it.

Animals↗

[Carotid paragangliomas].

Three cases of carotid body paragangliomas are reported. The authors underline the critical diagnostic role of carotid arteriogram whenever such disease is suspected. Surgical treatment can lead to good results even in malignant forms. In the latter, treatment should be completed with radiotherapy.

Adult↗

[Popliteal aneurysm (therapeutic considerations)].

The authors show a case of popliteal artery aneurysm they had the opportunity to observe. In consideration of the high percentage of surgical failures; recorded in the treatment of the complicate forms, they point out the importance of precocious diagnosis. The Authors think the termino-terminal arterial anastomosis after aneurysmectomy has very limited indications.

Aged↗