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Biomedical subjects

L Santoro

Publications and source records attributed to L Santoro.

At least 163 records · Page 9Linked to original sources
PubMed1979

Histological characteristics of the human testis after long-term treatment with cyproterone acetate.

Cyproterone acetate, an antiandrogen drug, is used to reduce mammalian fertility. Effects on the human testis are controversial. Findings in this study reveal that long-term treatment-7 months with 200 mg/day-leads to disappearance of the germinal cells and to Sertoli cells with either a normal or undifferentiated aspect as well as involution of the Leydig cell. Some pathogenetic hypotheses on the action of cyproterone acetate upon human spermatogenesis are discussed.

Cyproterone↗
PubMed1977

[Local regional recurrences after radical mastectomy. Studies of 50 cases].

Resection of locoregional recurrences was performed after mastectomy in 50 cases in the period 1961-1974. An incidence of 2% to 35% is reported for such recurrences, which are due to a variety of factors. In the present series, attention was directed to age at mastectomy and at recurrence, size of primary tumour, presence of axillary metastases, and details of menarche, menopause and pregnancy. Mean age at mastectomy was 50 yr and at recurrence 53 yr. Tumour diameter ranged from 2 to 5 cm in 73% of cases. Lympho node metastases were present in 42%. In 80%, the recurrence was paracicatricial, in 13% parasternal, and in 7% axillary. Treatment consisted of resection, radiochemotherapy or endocrino-ablative management.

Adult↗
PubMed1975

The involvement of superoxide anions in the autoxidation of various cofactors of cysteamine-oxygenase.

The reduction of tetranitroblue tetrazolium with cysteamine, mediated by a number of dyes, elemental sulphur, elemental selenium and selenide, under aerobic conditions, was inhibited to various extent upon addition of superoxide dismutase. A strict parallelism between the ability to produce O2- ions and the property of those compounds to act as cofactors for cysteamine-oxygenase, to yield hypotaurine, has been observed. Based on the fact that the autoxidation of cysteamine also gives rise to O2- formation, though to a minor extent, we propose a mechanism for cysteamine-oxygenase action. This mechanism was derived from the data obtained in the model system studied.

Animals↗
PubMed1975

[Palliative demolitive surgery].

Nine cases of untreatable tumour in which radical surgery was employed palliatively are presented. Three hemipelvectomies for recurrent rhabdomyosarcoma were performed. In one case, death occurred postoperatively, probably as a result of pulmonary embolism. One patient survived for 8 months, while the other is still alive after three years. Of two cases in which interscapulothoracic disarticulation was performed, survivals of 9 and 5 months were observed in subjects with fibrosarcoma in a mastectomy site and recurrent sarcoma of the humerus with ling metastases. Survival to 7 months was obtained in a case of sarcoma of the maxilla, while three patients with squama cell cancer of the mouth floor, chondrosarcoma of the mandible and botryoid sarcoma of the tonsillar fossa are still living after periods of 10 months to 2 yr. Though devoid of schematic indications, palliative demolition surgery can be considered in borderline cases where the operative risk is not high. Irrespective of "quantity", the "quality" of life remaining to the patients can be made compatible with the psychophysiological limits of the human personality.

Adolescent↗