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Biomedical subjects

D Rodier

Publications and source records attributed to D Rodier.

54 records · Page 3Linked to original sources
PubMed1985

[Circulating immune complexes in breast cancer].

The occurrence of circulating immune complexes (CIC) was investigated in serum samples from 139 patients with breast cancer, using the 125I-C1q binding test. In the 85 cases of regional forms, the level of Clq binding activity did not appear to be correlated with the clinical TN stage, nor with the local treatment of the tumor. Conversely it was clearly elevated in the 13 cases of inflammatory breast tumors, and the decrease of CIC at the post-chemotherapy, but pre-surgical stage may involve the inflammatory signs in this augmentation of CIC. Frequency of occurrence and levels of CIC were slightly increased in the 41 metastatic breast cancer patients when compared to the cases of local breast carcinoma. In the disseminated forms, increase, no change, or decrease of CIC levels showed a poor correlation to progression, stabilisation, or improvement of the disease. CIC seems to be of slight prognostic value in breast cancer with local forms, but regarding progression of the disease, metastatic breast cancer patients with elevated CIC did not prove to be unfavorable group. So far, CIC did not appear to be a tumor marker or an evident prognostic factor of clinical relevance in breast cancer. Assays for antigen-specific CIC might be of greater clinical significance, in breast cancer, than the antigen non specific assays available at present.

Acute Disease↗
PubMed1984

Grating and recognition acuities of pediatric patients.

Acuities for gratings obtained by preferential looking (PL) that differed from expectations based upon the ophthalmologic examination prompted this study. Older pediatric patients (124 patients; mean age, 6.5 years) were tested by the PL grating test and a test of recognition acuity (pictures or letters). On the average, grating acuity was better than recognition acuity. In patients with dense amblyopia or foveal abnormalities, very large discrepancies between grating and recognition acuities were found. In nonamblyopic patients, acuities were no more discrepant than for children with normal eyes. Amblyopia was less dense by grating acuities than by recognition acuities; grating acuities were sensitive, however, to refractive and organic amblyopia but not to strabismic amblyopia. Possible explanations include the heterogeneity of patients' eye disorders, single vs. linear acuity, stimulus size and relative complexity of stimuli. These results can aid in evaluating PL grating acuities of preverbal patients, and suggest modifications of stimuli to investigate amblyogenesis.

Adolescent↗
PubMed1984

Anticonvulsant activity of 4,9-dioxo-5,10-diazatetradecane (CM 40142), a new GABA derivative, in mice and photosensitive baboons).

The authors describe the anticonvulsant activity of a new gamma-amino-butyric acid (GABA) derivative in several animal models of generalized epilepsy including photoepileptic baboons. In all the studies, 4,9-dioxo-5,10-diazatetradecane (CM 40 142) revealed potencies against chemically, electrically and photic-induced seizures very similar to those observed with sodium valproate. In chemically elicited seizures in mice, CM 40142 exhibited a higher potency than sodium valproate in antagonizing anti-GABAergic agents. Although CM 40142 was synthesized as a compound which would cross the blood-brain barrier and liberate GABA within the central nervous system, preliminary biochemical investigations in mice failed to demonstrate a rise in brain GABA levels after treatment with CM 40142. Furthermore, CM 40142 increased spontaneous motility in mice at anticonvulsant doses. The data suggest that CM 40142 could be a broad spectrum nonsedative antiepileptic agent.

3-Mercaptopropionic Acid↗
PubMedDate not supplied

Use of polyglactin 910 mesh (Vicryl) in pelvic oncologic surgery.

Various synthetic materials have been shown to be useful surgical adjuncts in shielding the small intestine from pelvic radiation or in creating a new pelvic floor after major radical resections. Promising preliminary results with a polyglactin 910 (Vicryl) mesh in preventing radiation enteropathy prompted the authors to evaluate its clinical usefulness in reconstruction of the pelvic floor. Use of this mesh in pelvic exenterations (five total, one posterior) for advanced or recurrent gynecologic malignancies was associated with one enteroperineal fistula but no pelvic infection. In comparison with other pelvic reconstruction devices, this absorbable mesh significantly reduced intestinal morbidities in pelvic exenterations. This procedure appears to be feasible, reproducible, and safe, especially in patients who have undergone previous irradiation or those with an unsuitable omentum.

Adult↗
PubMedDate not supplied

[Sarcoma of the breast].

Reports of 4 personal cases of breast sarcomas (3 cases of cystosarcoma phyllodes and 1 angiosarcoma), the authors review the literature concerning these rare tumors which account for less than 1% of malignant tumors of the breast. Whilst the usual clinical picture is that of a large tumor deforming the breast with pseudo-inflammatory signs, sarcomas 1 to 3 cm in diameter were discovered and treated with good chances of recovery. The natural history of breast sarcomas is marked above all by the risk of hematogenic metastatic spread (30% of cases) whilst very few (5%) local recurrences are seen following surgical treatment by mastectomy. Emphasis is placed upon problems of histological diagnosis of the variety of sarcoma and the demonstration of histoprognostic factors which can be used to predict the outcome (mitotic activity, grading) showing evidence of good correlation in the series analyzed. The various characteristics of cystosarcoma phyllodes are described emphasizing the conditions surrounding its development, relations with benign phyllodes tumors. The particular severity of this sarcomatous form in the very young woman is mentioned. Prevention lies in the sufficiently extensive excision of the phyllodes tumor. Mesenchymatous sarcomas of the breast are also accompanied by a fairly favorable prognosis (5 year actuarial survival of 50 to 80% according to series). By contrast, two special and rare histological varieties, angiosarcoma and lymphosarcoma, are characterized by a much more gloomy prognosis and require different treatment including radiotherapy and chemotherapy.

Adult↗
PubMedDate not supplied

[Role of pelvic exenterations in the treatment of cervix cancers. Apropos of 41 surgically treated cases].

The Department of surgical oncology of the Paul-Strauss Cancer Center of Strasbourg (France) reports its experience about pelvic exenterations in recurrent cervix carcinomas. Based on a series of 41 cases (median age: 48.5 years), all patients, but one, have been primarily treated by sole external beam irradiation or surgery combined with radiotherapy. Salvage ultraradical surgical procedures were total (25 cases), anterior (7 cases) and posterior exenterations (9 cases). Overall 5 and 10 years crude survival were 39 and 27.5%, respectively. Advances in surgical procedures, new developments in techniques of pelvic floor reconstruction and improvement in devices of urinary diversions have mainly contributed to a decrease of postoperative morbidity associated with the obtaining of long survivals in selected patients previously treated, in a curative intent, by other therapeutic modalities. The current place of palliative pelvic exenterations and the support of intraoperative radiotherapy are discussed according to recent literature data.

Adult↗