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Insight into Underlying Causes of Sjögren's Disease Points to Existing Drug as Promising Treatment Candidate
 Sjögren’s disease is a chronic autoimmune condition affecting up to four million Americans, characterized by symptoms such as dry eyes and mouth, fatigue, and inflammation in various organs. Although it primarily affects women, men tend to face more severe complications. The disease can impact pregnancy outcomes and increase risk for lymphoma. Despite extensive research, its underlying causes remain unclear, and current treatments mainly aim to manage symptoms.
Recent NIH-supported research using mouse models sheds new light on Sjögren’s disease, pointing to dysfunction in regulatory T cells and a heightened interferon gamma response as key drivers of disease symptoms. A drug called baricitinib, already approved for conditions such as rheumatoid arthritis, showed promising results in mice by reducing inflammation and restoring gland function. The similarities between mouse and human immune responses suggest that baricitinib could be a viable future treatment for people with Sjögren’s disease, offering hope for more targeted therapies ahead.
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