Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027121 (myositis)
 4,538 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A rapid method of determining creatine phosphokinase (CPK) isoenzymes using dithiothreitol, a reducing agent which activates the main fractions of the CPK molecule (MM and MB), was assessed in 68 subjects (34 with myocardial infarction, 18 with skeletal muscle lesions, 16 normal). In acute myocardial infarction, the mean peak of CPK-MB in serum increases to 13.3% of the total CPK (range 8.8% to 21%) from the 18th to the 24th hour after onset of symptoms, whereas in skeletal muscle lesions CPK-MB reaches only 1% of total CPK (range 0% to 2.9%), and in normal subjects CPK-MB is absent. This highly significant difference (p less than 0.001) makes it possible to distinguish accurately between myocardial infarction and skeletal muscle lesions (trauma, hematoma, myositis, hypothyroidism). By its sensitivity (100%) and specificity (97%) this rapid and inexpensive method finds its optimal sphere of application in emergency wards and coronary care units.
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PMID:[Diagnosis of myocardial infarct by means of a quick determination of the MB fraction of serum creatinephosphokinase]. 101 16

Churg-Strauss syndrome (CSS) is a rare vasculitis characterized by the clinical triad of asthma, peripheral eosinophilia, and systemic vasculitis. Pulmonary symptoms occur commonly, but gastrointestinal, renal, cardiac, and musculoskeletal manifestations may also occur. Disease activity and expression can be variable, and progressive organ failure may occur in the absence of other clinical or biochemical evidence of disease activity. We report the case of a 73-year-old man who presented with signs and symptoms of an acute myocardial infarction, eosinophilia, a pulmonary infiltrate, and recent onset asthma. The cardiac catheterization was normal, but an endomyocardial biopsy specimen revealed eosinophilic myositis, granuloma formation, and small vessel vasculitis. A repeat endomyocardial biopsy 1 month after the initiation of high dose prednisone therapy showed no evidence of inflammation and no significant fibrosis. We suggest that a endomyocardial biopsy is a safe and useful tool in the diagnosis and monitoring of therapy in patients with CSS cardiac disease.
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PMID:The role of endomyocardial biopsy in the diagnosis and treatment of Churg-Strauss syndrome. 1907 61

Idiopathic inflammatory myopathy (IIM) is an autoimmune disease characterized by chronic muscle weakness and myositis with unknown etiology. IIM may affect the function of multiple organs and has a poor prognosis. In the present study, the causes of mortality in patients with IIM admitted to the Xiangya Hospital during the last 14 years were investigated. The investigation included an analysis of frequent causes of IIM, and of infections and associated complications. A cohort study was conducted on 676 patients with IIM that were admitted to Xiangya Hospital from January, 2001 to January, 2015. There were 49 patient mortalities (7.2% of the total cases), of which 34 mortalities were infection-associated and 15 were not infection-associated. The proportion of infection-associated IIM mortalities had increased since 2001. Of the 34 infection-associated mortalities, 31 cases (63.3%) were of fungal and bacterial infections, most frequently infecting the lungs and the blood. Klebsiella pneumoniae and Acinetobacter baumannii were the most commonly isolated pathogens, and co-infection with the two pathogens was observed in the majority of cases. In the IIM mortalities not associated with infection, there were 2 acute myocardial infarction cases, 2 acute interstitial lung disease cases, 4 malignancies and 1 case of each of the following: Arrhythmia, pneumothorax, ventilator weakness, pulmonary artery hypertension, gastrointestinal bleeding, liver failure and renal failure. Three mortalities were secondary to viral hepatitis in the present study. Pathogenic infection was the most frequent cause of mortality in patients with IIM. The remaining causes of mortality included secondary to heart failure, lung dysfunction and malignancy. Following the ubiquitous application of glucocorticoids and immunosuppressants, the proportion of infection-associated mortalities increased in patients with IIM. Thus, in addition to focusing on the primary disease, infection should receive increased attention during clinical practice.
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PMID:Investigation into the cause of mortality in 49 cases of idiopathic inflammatory myopathy: A single center study. 2699 7