Search PubMed⌕ Search

Biomedical subjects

R Estruch

Publications and source records attributed to R Estruch.

At least 91 records · Page 5Linked to original sources

Inflammatory myopathy associated with chronic graft-versus-host disease.

Damage of skeletal muscle in association with graft-versus-host disease (GvHD) has been referenced exceptionally. Eighteen months after bone marrow transplantation, a 22-year-old man developed polymyositis associated with manifestations of chronic GvHD, such as peripheral eosinophilia and localized morphea. Diagnosis of polymyositis was established by clinical, electromyographic, and histopathologic findings. His clinical condition improved with immunosuppressive therapy. At electronmicroscopy, some close and broad contacts between lymphocytes with activated appearance and degenerated muscle fibers were observed, suggesting a lymphocytotoxic mechanism. The findings support the idea that polymyositis can be considered a manifestation of chronic GvHD.

Adult↗

Lectin histochemistry applied to human nerves.

Histologic sections of normal and pathologically altered human peripheral nerves were stained with a battery of 20 fluorescein isothiocyanate-labeled lectins to determine whether these histochemical reagents could be used to identify peripheral nerve injury. Eight plant lectins--from Canavalia ensiformis, Lens culinaris, Triticum vulgare (wheat germ), types E4 and L4 from Phaseolus vulgaris, types I and II from Ricinus communis, and Wistaria floribunda--were found to bind to normal and pathologically altered nerves. Only two lectins, from Helix pomatia and Maclura pomifera, were found to bind selectively to pathologically altered nerves. The changes recognized by lectin histochemistry were not pathognomonic of any specific type of nerve injury. This study provides baseline data on the reaction pattern of human peripheral nerve with a series of lectins and shows that lectin histochemistry could provide means for the study of peripheral nerve pathology.

Aged↗

Generalized Castleman's disease with urinary elimination of heavy chain fragments.

A generalized form of Castleman's disease of transitional type is reported in a 66-year-old male who was found in addition to have gamma heavy chain fragments in his urine. One portion of them was constituted by Fc fragments and the other ones by fragments which reacted with anti-Fab/IgG and anti-Fc/IgG antisera but not with anti-kappa and anti-lambda antisera. The findings of the present case support an immunological basis for Castleman's disease.

Aged↗