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Biomedical subjects

M Flesch

Publications and source records attributed to M Flesch.

114 records · Page 7Linked to original sources
PubMedDate not supplied

Allogeneic bone marrow transplantation in 24 patients with multiple myeloma reported to the EBMT registry.

Twenty-four patients with multiple myeloma received an allogeneic bone-marrow graft from HLA-compatible sibling donors (n = 23), or a twin donor (n = 1). Eighteen patients are alive, 1-36 months post bone-marrow transplantation (median 14 months). Ten of these patients had no signs of multiple myeloma as judged by immunoglobulins in serum, light chains in urine, or the percentage of plasma-cells in bone-marrow aspirate. Bone lesions on X-ray were mainly unchanged. Six patients died from transplant-related complications 3 weeks to 5 months post transplantation. One of these patients had severe acute graft-versus-host disease (aGVHD). In other patients aGVHD was a minor problem. Allogeneic bone-marrow transplantation appears to be a promising method for treatment of a selected group of patients with multiple myeloma.

Bone Marrow Transplantation↗
PubMedDate not supplied

Beta-adrenergic signal transduction in the failing and hypertrophied myocardium.

A strong sympathetic activation has been observed in heart failure and is the cause of beta-adrenergic desensitization in this condition. On the receptor level there is downregulation of beta1-adrenergic receptors and uncoupling of beta2-adrenoceptors. The latter mechanism has been related to an increased activity and gene expression of beta-adrenoceptor kinase in failing myocardium, leading to phosphorylation and uncoupling of receptors. beta3-Adrenoceptors mediate negative inotropic effects, but alterations in these receptors are not known. In addition, an increase in inhibitory G protein alpha subunits (Gi alpha) has been suggested to be causally linked to adenylyl cyclase desensitization in heart failure. In contrast, the catalytic subunit of adenylyl cyclase, stimulatory G protein alpha and betagamma subunits, have been observed to be unchanged. Recent evidence shows that increases in Gi alpha also depress adenylyl cyclase in compensated cardiac hypertrophy both in monogenic and polygenic and in secondary hypertension. These increases of Gi alpha can suppress adenylyl cyclase in the absence of beta-adrenergic receptor downregulation. Since cardiac hypertrophy in pressure overload is a strong predictor of cardiac failure, these observations indicate that adenylyl cyclase desensitization by Gi alpha may be a pathophysiologically relevant mechanism contributing to the progression from compensated cardiac hypertrophy to heart failure.

Animals↗
PubMedDate not supplied

[Autograft of bone marrow following intensive treatment in acute lymphoid leukemia in children].

Ten children were autografted for ALL in second complete remission (CR). The conditioning regimen consisted of cyclophosphamide (60 mg/kg/day X 2) and total body irradiation (10 to 13.2 grays). It was well tolerated, no deaths occurred during the first 3 months post-graft. Nine children remained in second CR, without any maintenance therapy, from 2 to 40 months after ABMT and the median survival time was 11 months. One child died 112 days post-graft, following a cerebral hemorrhage (thrombocytopenia less than 10 X 10(9) platelets/liter). One girl, affected by B ALL, was autografted while in first CR after intensive chemotherapy (modified BACT) 5 months after diagnosis. She relapsed 8 months later. Seven bone marrows have been purged ex vivo by chemotherapy (ASTA-Z) and 3 by anti-CALLA monoclonal antibodies and complement.

Adolescent↗
PubMedDate not supplied

[Prognosis of adult non-Hodgkin's lymphomas. Retrospective study of sixty-six patients (author's transl)].

The authors studied the prognosis of 66 adults NHL according to: histological, clinical, biological and evolution criteria. The patients were treated by polychemotherapy or polychemo-and radiotherapy. Three years actuarial survival compared by the X2 test permits to consider only two independent prognostic factors: histologic type and complete remission due to treatment.

Adult↗