A higher IB index was associated with worse cognition in the study cohort. In an editorial accompanying the Neurology article Timo Strandberg, M.D., Ph.D., and Allison Aiello, Ph.D., say, “Several chronic diseases, such as peptic ulcer, certain cancers, and autoimmune conditions, have established infectious etiologies, either bacterial or viral, but mainstream cognitive disorder research has not fully considered microbial involvement.”
Some evidence has also emerged suggesting that infectious pathogens may be related to some cases of schizophrenia. To read more about that topic, see Psychiatric News here. An abstract of the Neurology report, "Infectious Burden and Cognitive Function: The Northern Manhattan Study,” can be read here.
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