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)

Although there is still an emotional debate over the existence of mixed connective tissue disease, the evidence from animal models suggests that anti-U1RNP antibodies, similar to other autoantibodies in other connective tissue diseases (such as antisynthetase, anticentromere, and antitopoisomerase), play a pathophysiological role in this disease. Despite an antiendothelial effect of anti-U1RNP antibodies, which is reminiscent of anticentromere antibodies, patients with high-titer autoantibodies to U1RNP in the absence of anti-Sm antibodies do not usually have or develop typical systemic sclerosis. Instead, their severe Raynaud's syndrome is commonly accompanied by arthritis, which can be erosive, and by swollen/puffy hands and myositis. Pulmonary arterial hypertension is the major life-threatening complication in these patients and regular screening for this condition is essential.
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PMID:Mixed connective tissue disease: what is behind the curtain? 1806 60

Antisynthetase Syndrome (ASS) is a subset of idiopathic inflammatory myopathies characterised by specific clinical features such as interstitial lung disease (ILD), fever, myositis, Raynaud's phenomenon, cutaneous involvement and arthritis related to the presence of anti-aminoacyl-tRNA-synthetase (anti-ARS) autoantibodies. Moreover, Pulmonary arterial hypertension (PAH) is a life-threatening complication associated with connective tissue diseases mainly systemic sclerosis (SSc-PAH). It has been suggested that PAH can complicate ASS patients but little is known about the prevalence and risk factors to develop this complication. Here we report on two patients with ASS and PH. The first one represents a complete picture of ASS anti-Jo-1 positive, the second an amyophatic ASS anti-PL-12 positive. In one of our ASS-PAH patients, specific treatment lead to improvement of PAH. There are no specific recommendations on current guidelines regarding either PAH screening or treatment in ASS, but performing echocardiogram, ECG, pulmonary function test and prompt initiation of specific therapies seems to improve right heart catheterisation (RHC) parameters and survival.
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PMID:Antisynthetase syndrome and pulmonary hypertension: report of two cases and review of the literature. 3269 39