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Biomedical subjects

H Rochant

Publications and source records attributed to H Rochant.

At least 109 records · Page 6Linked to original sources
PubMed1980

[Comments about use of polychemotherapy MOPP associated with radiotherapy in the treatment of early stages of Hodgkin's disease. Preliminary report of 58 patients (author's transl)].

58 patients with early stages of Hodgkin's disease (I, II, III l) were treated by 3 courses of MOPP chemotherapy followed by extended field irradiation. After 31 to 72 months follow up 87,8 p. 100 of patients are alive in complete remission. The study of the group deserves two comments: 1. Adjuvant MOPP polychemotherapy may be useful, only when a complete response is obtained after 3 courses, when it is so a complete remission of long duration may be hoped in nearly 100 p. 100 of cases. 2 After complete remission induced by combined chemotherapy and radiotherapy, maintenance chemotherapy seems to be useless.

Adolescent↗
PubMed1979

[An atypical form of Waldenstrom's macroglobulinaemia with complete remission lasting for more than two years after multiple chemotherapy (author's transl)].

An authentic case of Waldenstrom's macroglobulinaemia without a tumoural syndrome is reported, with initial signs of peripheral pancytopenia. Complete and persistent remission appears to have followed multiple sequential chemotherapy. This very satisfactory and, according to data in the published literature, very rare result suggests that this type of treatment should be prescribed for all patients with macroglobulinaemia with poor prognostic clinical and histological characteristics.

Adult↗
PubMed1977

Electrophoretic and kinetic studies of human erythrocytes deficient in pyrimidine 5'-nucleotidase.

A new case of a defect in red cell pyrimidine 5'-nucleotide (P5N) activity was found in a large family from Guadeloupe in the West Indies. The propositus presented a characteristic hemolytic anemia with red cell basophilic stippling, an increased GSH level, and a shift of the peak in absorbance of nucleotide. The enzyme activity from the deficient red cells differed from that of the normal. The P5N activity of the deficient red cells was about 14% that of normal. The electrophoretic pattern of P5N activity of the deficient red cells was distinct from that of the control in terms of its Km and of the effects of pH on its maximum activity and heat stability. The significance of such differences is discussed.

Anemia, Hemolytic, Congenital↗
PubMed1977

[Chemotherapy-radiotherapy association in the treatment of localized forms of Hodgkin's disease. Prognosis of polychemotherapy after three trials of M.O.P.P].

63 patients with Hodgkin disease of limited extent (I, II, III) are treated with two protocols: extended field irradiation versus chemotherapy (M.O.P.P.) + extended field irradiation. Three points are suggested by analysis of the results: 1) Advantage from the combination of chemotherapy-radiotherapy. 2) Resistance to chemotherapy frequent innodular sclerosis. 3) In patients treated with chemotherapy the reaction has a prognostic value: failure of treatment being seen only in patients who did not obtain a complete remission.

Drug Therapy, Combination↗
PubMed1976

[Polyagglutinability due to Hempas antigen].

A new antigen has been recently discoverd in patients with congenital dyserythropoietic anemia type II. The acronyme Hempas was proposed for this disease as a remind of the main morphological feature of erythroblasts (hereditary erythroblastic multinuclearity) and the characteristic serological findings (positive acidified serum test). The patients red cells are agglutinated and lysed by an IgM cold reacting antibody present in the serum of most normal subjects and not previously recognized. This behaviour is thus reminding of cells carrying antigens such as T, Tn, Cad or acquired B. As for T and Tn cells, sialic acid and electrophoretic mobility are reduced, but in contrast, agglutinability of Hempas cells is enhanced by enzyme treatment. Agglutination by anti H and anti Pr specific reagents is reduced. I and mainly i activity are strongly increased. The relationship between the membrane abnormalities of Hempas red cells and the failure of normoblasts to divide their cytoplasm i still largely unknown.

Complement System Proteins↗
PubMed1976

A new case of monoclonal IgA kappa cold agglutinin with anti-Pr1d specificity in a patient with persistent HB antigen cirrhosis.

A new case of cold agglutinin disease in a patient who had a long lasting Raynaud's phenomenon without hemolysis and a persistent HB antigen cirrhosis, is reported. The cold agglutinin is a monoclonal IgA kappa antibody which reacts at 4degreesC to a titer of 256. As the three other cases described in the literature, it demonstrates Pr1 specificity. The eluate from human cells reacts with rat and dog cells whose receptor is destroyed by both papain and neuraminidase, thus eliciting the characteristic Pr1d specificity.

Aged↗
PubMed1976

[Acute monoblastic leukemia. Clinical and therapeutic aspects in 20 cases].

Twenty cases of acute monoblastic leukemia are studied according to definite criterias: cytology, cytochemical staining, lysozyme production. The study points out the tumoral characters: hematodermy, gingivitis, central nervous system leukemia and the lack of important bone marrow incompetence. 47 per cent of complete remissions are obtained with daunorubicin, aracytin combination therapy. Other useful chemical agents, and prospects for maintenance therapy are discussed.

Adolescent↗
PubMed1975

[Post-hepatitic aplasia treated by grafts of allogenic bone marrow. Remission for more than 2 years. Persistance of a total hematopoietic chimera. Graft versus host reaction].

A successfull bone marrow transplant was achieved in a case of post hepatitic aplastic anemia after cyclophosphamide immunosuppression. Caryotype analysis, erythrocytic phenotype and IgG Gm allotype demonstrated evidence of complete chimerism. Anti-thymocyte serum undoubtly was able to suppress a life threatening episode of graft versus host reaction. Severe long lasting skin lesions are now persisting 2 years after the graft.

Adolescent↗