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Epigenetic changes impact gene activity without actually altering the sequence of DNA, and scientists are now able to diagnose rare disorders based on specific epigenetic signatures. From the ...

Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) is a rare autoimmune condition in which the body's immune system mistakenly attacks the protective myelin sheath of nerve fibers ...

Microbes are the elders of life on Earth — they were here long before us, and they’ll be here long after we’re gone. They drive the biogeochemistry of the planet; without them, the composition of the ...