
Jo-1 antibody near me in Jaipur









The Jo-1 antibody test is a blood test that detects Jo-1 autoantibodies, which are strongly associated with autoimmune conditions like polymyositis and dermatomyositis. These conditions can cause progressive muscle weakness and, in the case of dermatomyositis, distinctive skin rashes. The test helps in diagnosing, monitoring, and managing such autoimmune disorders. This test is widely available in Jaipur with Tata 1mg labs at an affordable price.
The Jo-1 antibody test is usually recommended when a patient presents with unexplained muscle weakness, fatigue, joint pain, difficulty swallowing, or skin rashes. It is also useful in assessing patients with interstitial lung disease, which can sometimes occur alongside these autoimmune disorders. Early detection of Jo-1 antibodies can help guide treatment decisions and improve disease management.
No special preparation is needed for getting the Jo-1 antibody test done. However, it is preferred that you share your clinical history, current medications, and supplement use with your doctor before giving the sample, as these may influence the results.








What does Jo-1 antibody measure?
The Jo-1 antibody test detects autoantibodies against histidyl-tRNA synthetase, an enzyme essential for protein synthesis inside cells. The presence of these antibodies indicates an autoimmune reaction in which the immune system mistakenly attacks muscle and connective tissues.
Jo-1 antibodies are present in approximately 20–30% of patients with polymyositis or dermatomyositis and are considered highly specific for these conditions. Their presence is often associated with interstitial lung disease, arthritis, Raynaud’s phenomenon, and mechanic’s hands.
A positive result suggests a higher probability of inflammatory myopathies, especially when accompanied by respiratory symptoms or muscle weakness. However, a negative result does not completely rule out polymyositis or dermatomyositis, as not all patients with these conditions have Jo-1 antibodies. Results should always be interpreted alongside clinical symptoms, physical examination, imaging, and other laboratory investigations.





FAQs related to Jo-1 antibody in Jaipur
- Zampieri S, Ghirardello A, Iaccarino L, Tarricone E, Gambari PF, Doria A. Anti-Jo-1 antibodies. Autoimmunity. 2005 Feb;38(1):73-8. [Accessed 23 Sep. 2025]. Available from:
- Anti-synthetase syndrome in ANA and anti-Jo-1 negative patients presenting with idiopathic interstitial pneumonia [Internet]. ScienceDirect; [Accessed 23 Sep. 2025]. Available from:
- Honda M, Shimizu F, Sato R, Mizukami Y, Watanabe K, Takeshita Y, Maeda T, Koga M, Kanda T. Jo-1 Antibodies From Myositis Induce Complement-Dependent Cytotoxicity and TREM-1 Upregulation in Muscle Endothelial Cells. Neurol Neuroimmunol Neuroinflamm. 2023 May 5;10(4):e200116. [Accessed 23 Sep. 2025]. Available from:
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