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The distribution and intensity of alkaline phosphatase deposition in 54 patients with dermatomyositis-polymyositis (PM-DM) was analyzed by the enzyme histochemical method. Increased enzyme reactivity of endomysial capillaries was found in 28% of patients, equally distributed between adult onset PM
BACKGROUND
There have been only two reports on immunophenotypic characterization in the cutaneous lesions of dermatomyositis (DM) that emphasize the importance of the infiltrating CD4+ T lymphocytes.
OBJECTIVE
To characterize the immunophenotype of the cells that infiltrate the lesional skin of DM
OBJECTIVE
To determine the presence of small integrin-binding ligand N-linked glycoprotein (SIBLING) and bone components in juvenile dermatomyositis (DM) pathologic calcifications.
METHODS
Calcifications were removed from 4 girls with juvenile DM symptoms for mean +/- SD 36.9 +/- 48.3 months and
We report a case of the uncommon association of dermatomyositis and primary biliary cirrhosis in a causasion male of 48-year-old. Diagnosis of dematomyositis was made because of muscle weakness, loss of weight, skin telangiectasia, elevated serum concentration of creatine kinase, polyphasic low
OBJECTIVE
Previous work has suggested involvement of the muscle microvasculature in the pathogenesis of dermatomyositis (DM). Our study evaluates whether standard histochemical reactions can identify microvascular changes in muscle biopsies from patients with DM compared to myopathic and
Regenerating fibres from tibialis anterior muscles of mice and hamsters transplanted as minced fragments for 7 and 9 days respectively were compared for basophilia, ribonucleic acid (RNA) and acid phosphatase activity with fibres in muscles of patients with Duchenne muscular dystrophy, limb--girdle
The objective was to investigate the clinical and histological features of liver dysfunction in patients with polymyositis (PM) or dermatomyositis (DM).A total of 115 patients (38 with PM and 77 with DM), who were admitted to our hospital between 2001 and 2012, were retrospectively reviewed. Liver
OBJECTIVE
The pathophysiology of dermatomyositis (DM) remains unclear, combining immunopathological mechanisms with ischaemic changes regarded as a consequence of membranolytic attack complex (MAC)-induced capillary destruction. The study is a reappraisal of the microvascular involvement in light of
OBJECTIVE
To examine single-nucleotide polymorphisms (SNPs) of the protein tyrosine phosphatase N22 gene (PTPN22) and to study the relationship between PTPN22 and the HLA region in patients with idiopathic inflammatory myopathies (IIMs).
METHODS
PTPN22 SNPs were assessed in a large, cross-sectional,
Inflammatory myopathies (IM) are acquired diseases of skeletal muscle comprising dermatomyositis (DM), polymyositis (PM), and inclusion-body myositis (IBM). Immunosuppressive therapies, usually beneficial for DM and PM, are poorly effective in IBM. We report the isolation and characterization of
The recent delineation of a clinical syndrome marked by eosinophilia, myalgia, and scleroderma-like skin changes associated with L-tryptophan use has necessitated the Centers for Disease Control to initiate a health alert. The likely association of L-tryptophan ingestion with a syndrome that mimics
The aim of this study was to determine whether a single-nucleotide polymorphism (SNP; 1858CT, R620W) in the protein tyrosine phosphatase N22 (PTPN22) gene confers susceptibility to idiopathic inflammatory myopathy (IIM) in South Australian patients with IIM.
Genotyping was performed on stored DNA
The inflammatory forms of facioscapulohumeral myopathies are rare. In a series of 52 cases, six patients had these types. Only four cases could be investigated with immunochemical staining (immunoperoxidase). Monoclonal antibodies reactive for B cells, T4 cells, T8 cells, natural killer cells were
Multicentric reticulohistiocytosis (MRH) is an uncommon non-Langerhans cell histiocytosis of unknown etiology. It is a multisystem disorder characterised by a papulonodular skin eruption, mainly in the extensor surfaces, and destructive polyarthritis. Histologically, either cutaneous lesions or the
Mixed connective tissue disease (MCTD) is a rheumatological disease which has to be distinguished from other entities causing inflammatory myopathy. The usual clinical presentation of inflammatory myopathy associated with connective tissue disease is not different from isolated polymyositis or