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Biomedical subjects

M F Cosimi

Publications and source records attributed to M F Cosimi.

15 recordsLinked to original sources

A cultural study on corneal explants and clinic assessment of the effectiveness of treating corneal ulcers induced by alkal test with topic aprotinin and fibronectin.

The A.A. studied the effectiveness of colliriums containing fibronectins aprotinin, and fibronectin associated with aprotinin compared to a placebo using 12 rabbits in which a deep corneal ulcer was induced by alkal. The results showed the same effectiveness of the three collyrium versus the placebo there was clinical recovery in all cases and restoration of corneal trasparency for 13 out of 15 treated eyes. Cellular cultures obtained from primary explants of treated corneal cells, compared with non treated groups, gave the same outcome of the clinical's ones.

Administration, Topical↗

Low doses of alpha 2B interferon in the treatment of hairy cell leukemia: results of treatment and mean follow-up at 18 months in 13 patients.

We treated 13 Hairy Cell Leukemia patients with rIFN a 2b. In case of complete/partial response, the patients were submitted to maintenance treatment, while, in case of minimal/no response, a second induction cycle was administered, followed by a maintenance one. The patients were followed, on an outpatients basis, for 18 months at least, obtaining a 100% overall response rate; one patient had complete response, 7 had partial response, and 5 only minimal response. Six patients (46%) relapsed an average of 13 months after the end of the treatment. The utility of a maintenance therapy is discussed.

Adult↗

[The diagnostic difficulties in a case of Behçet's disease].

Behçet's disease is a chronic, heterogeneous, multisystem disorder caused by a vasculitis involving arterial and venous vessels of all sized. In 1990, a new set of diagnostic criteria has been proposed as a guide to diagnosis of Behçet's disease, requiring the presence of oral ulcerations plus two of the following symptoms or signs: genital ulcerations, characteristics eye lesions, typical skin lesions, and a positive pathergy test. Nevertheless, both clinic and pathologic diagnosis of Behçet's disease remains sometimes very difficult. Diagnostic procedures and therapeutic implications in a case of Behçet's disease are reported and discussed.

Aged↗

[Correlation between the grade of histological malignancy and nuclear positivity using the AgNOR technique in 6 cases of isolated bone NHL].

Several reports have shown that the degree of positivity for the AgNOR count can be used to evaluate the aggressiveness of malignancies since it express an increased protein-synthesis activity. This technique was applied to six cases of stage I osseous non-Hodgkin's lymphoma--4 intermediate grade (2 diffuse small, non-cleaved cell and 2 diffuse large, non-cleaved cell lymphomas) and 2 high-grade immunoblastic lymphomas--in order to assess the histologic grade and the number of AgNOR-positive regions. It was noted that survival together with the trend to invade the surrounding soft tissues (i.e., the tumour aggressiveness) correlated with the AgNOR granule count. Both factors were also related with Ki-67 cell-proliferation antibody positivity. Such correlations were even higher than those found with the histologic features conventionally evaluated in the Working Formulation, so they seem to convey more reliable indices of neoplastic growth potential.

Antigens, CD↗

Putative mesothelial cell growth-promoting activity of a cytoplasmic protein expressed by the mesothelial cell. A preliminary report.

Mesothelioma cells produce a cytoplasmic protein unique to primary tumours of the mesothelium which induces the in vitro proliferation of human mesothelial cells in a dose-dependent fashion. When a polyclonal antibody to this protein was added to cultures of human mesothelioma cells, inhibition of their growth occurred. These results provide evidence for a growth-factor-like role of this mesothelial protein that may act through an autocrine mechanism.

Cell Division↗

Secretory (juvenile) carcinoma of the breast in an adult woman.

A case of secretory (juvenile) carcinoma of the breast is reported in a 31-year-old woman. Secretory carcinoma in adults is rare, only twenty-seven cases previously reported. It is known to have a more favourable prognosis than the conventional ductal carcinoma. The most adequate treatment appears to be a simple mastectomy with low axillary dissection.

Adult↗

Primary renal lymphoma.

A case of primary non-Hodgkin's lymphoma of the kidney is reported. Only 7 previously documented cases have been found in a survey of the relevant literature. Histogenetic hypotheses are reviewed. Ultrasound and computed tomography findings are described and the diagnostic role of these techniques is emphasized.

Aged↗

Breast lobular carcinoma in a fibroadenoma.

Lobular carcinoma arising in a fibroadenoma is a rare occurrence. A case is reported and literature is reviewed. Carcinomas developing in fibroadenomas are not intrinsically different from those not related to fibroadenomas. Prognosis and treatment are the same as for carcinomas of the same type arising outside and independently of fibroadenomas.

Adenofibroma↗

Rearrangements on chromosomes 7 and 14 with breakpoints at 7q35 and 14q11 in angioimmunoblastic lymphadenopathy and IBL-like T-cell lymphoma.

In this report we discuss some cases of AILD and IBL-like T-cell lymphomas and attempt to clarify the cytogenetic relationship between these complex disease states. During the period 1980-1987 we have studied No. 6 patients affected with AILD, three of which showed final evolution into Immunoblastic T-cell lymphoma. Cytogenetic studies, carried out on surgical lymphonodal material with histological diagnosis of AILD and leukemic cells obtained from the peripheral blood at the time of diagnosis, were analysed with IBAS 2000 for a computerized analysis, according to ISCA 1978 criteria. We have found similar translocations in three of our patients with AILD and terminal T-cell immunoblastic lymphoma, occurring between chromosomes 7 and 14 with breakpoints at 7q35 and 14q11. The arising of T-cell lymphoma in patients with AILD seems to be related to the presence of clonal cells with abnormal 7:14 translocation, which represent a very sensible marker of clonality desides of T-cell maturational lineage. In our opinion, the forms of AILD with these cytogenetic aberrations are pre-lymphomatous lesions. On the contrary, the lack of such rearrangements is indicative of non-neoplastic patterns.

Chromosomes, Human, Pair 14↗

Cytologic diagnosis and chromosome analysis: sensitivity, specificity, accuracy and predictive value in malignant and benign pleural effusions.

It is often difficult to determine the origin a pleural effusion even if it is very important for prognosis of a patient. We have studied No. 200 patients, affected with nontraumatic effusions, using cytogenetic technics and cytologic examination. Cytologic diagnosis of pleural effusions allows to detect correctly its malignant nature in a percentage of cases ranging, according to various Authors, between 45 and 80%. The main parameters we have considered in our study, in order to value chromosomal analysis as a useful test for malignity in pleural effusions, can be, at least, placed upon those obtained with cytologic diagnosis. Therefore, we think we can consider chromosomal analysis in neoplastic effusions as a useful completion in terms of diagnostic advantage of cytologic diagnosis.

Adult↗