A study supports the idea that some T cells that react to microbes also may react to normal human proteins, causing autoimmune disease. The findings promise to accelerate efforts to improve diagnostic tools and treatments for autoimmune diseases.
Washington [US], March 15 (ANI): There was barely any oxygen in the air for the first 2 billion years of Earth's history and though some microbes were photosynthesizing by the latter part of this period, accumulation of oxygen had not reached levels that would impact the global biosphere.
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