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Biomedical subjects

V Ferrari

Publications and source records attributed to V Ferrari.

At least 37 records · Page 2Linked to original sources

Complete estrogen blockade with buserelin and aminoglutethimide for advanced breast cancer: a phase I-II study with long-term hormonal correlations.

We treated 21 patients with advanced breast cancer with buserelin, aminoglutethimide and cortisone acetate in an attempt to obtain a complete estrogen blockade both in premenopausal and postmenopausal patients. Ten patients (47%) obtained an objective response without any relevant side-effects. Dealing with hormonal data, it must be outlined that serum testosterone levels decreased significantly in postmenopausal patients, suggesting a possible explanation for the activity of luteinizing hormone-releasing hormone analogue in this group of patients.

Adult

[Update on paraneoplastic hypercalcemia. Our experience in the treatment of hypercalcemic states of patients with advanced breast carcinoma].

The treatment of hypercalcemia of malignancy is troublesome. Personal experience with breast cancer associated hypercalcemia is presented. Eight patients were hydrated with intravenous administration of saline solution containing high doses of salmon calcitonin and subsequently six were treated with antiblastic polychemotherapy. Calcium level fell to normal in all patients. Hypercalcemia, with or without evidence of metastatic bone disease, may be caused by the production of humoral substance by tumoral tissue. In our experience the first therapeutic stage is the infusion of saline solution containing high doses of calcitonin, while the elective treatment is antiblastic polychemotherapy which, acting on tumour growth, may inhibit the release of humoral mediators of hypercalcemia causing a slower but stable reduction in serum calcium level.

Adult

Temperature dependence of the acid dissociation constants of chloroquine.

The pKa values of the conjugate acids of the antimalarial drug chloroquine were determined at various temperatures using fluorescence spectrophotometry and nonlinear regression in the data analysis. Both pKa values decreased by approximately one unit with increasing temperature over the range 0-37 degrees C with enthalpy changes of 46 and 49 kJ X mol-1. The ionization of chloroquine was found to be mainly controlled by the change in enthalpy. The chloroquine monocation was shown to be almost exclusively in the alkylamino protonated form at all temperatures studied.

Chloroquine

The pH-dependence of chloroquine uptake by phosphatidylcholine vesicles.

The pH-dependence of chloroquine uptake by phosphatidylcholine bilayered vesicles was investigated to examine the relative affinity of ionized and un-ionized chloroquine species to membrane bilayers. The results suggest that the neutral species and monocation are taken up by the bilayers but only the un-ionized species interacts significantly with the hydrocarbon interior.

Chloroquine

A survey of 311 patients receiving ibopamine mainly during hospital treatment for severe congestive heart failure.

From a monitored release of ibopamine, the 3,4-diisobutyryl ester of N-methyldopamine, during the early Italian marketing of the drug a collection of 311 individual cases was formed. The cases were reported by 168 cardiologist-practitioners, self-selected for having a therapeutic interest in the inotropic properties of ibopamine and in trying it out in patients with mostly severe, refractory congestive heart failure (CHF). Most patients were monitored during a hospital admission for worsened CHF. After clinical reassessment and other drugs' adjustment, ibopamine was added and the patient followed-up for 20 days in hospital with regular recording of scored signs and symptoms, arterial pressure, heart rate, body weight, and any clinical event--adverse or beneficial. Concomitant drugs were also recorded. Global assessment of efficacy was mostly positive, with "ineffective" rates of only 15.9% (doctors) and 14.2% (patients). In the absence of a control group, it is impossible to determine to what extent the foregoing was really due to ibopamine or to the rest of the therapeutic policy. However, the fact that most of the severe cases had been refractory to prior treatment, and that they individually carried a grave prognosis on admission, do seem to point to real ibopamine-related benefit. The high rate of symptomatic benefit perceived by the patients would also seem likely to be drug-related. Heart rate after the ibopamine-including regimen was significantly lower than before. Systolic and diastolic arterial pressures also tended to decrease, especially in CHF of hypertensive etiology.(ABSTRACT TRUNCATED AT 250 WORDS)

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