Tasha Clark tested positive for Covid-19 on April 8, 2020. The Connecticut woman, now 41, was relieved that her symptoms at the time diarrhea, sore throat and body aches didn't seem particularly severe.
Using novel imaging methods for studying brain metabolism, University of Kentucky researchers have identified the reservoir for a necessary sugar in the brain. Glycogen serves as a storage depot for the sugar glucose.
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Lack of oxygen, which is harmful to the brain, causes hydrogen sulfide sewer gas to accumulate in the brain. The brains of lab animals repeatedly exposed to hydrogen sulfide became tolerant to the gas and lack of oxygen. Researchers identified the mechanism that induces this tolerance, which could lead to new treatments for brain injuries caused by oxygen deprivation.
More than a year into the pandemic, what s causing the symptoms and how best to treat them is anything but clear. Making research especially difficult is that there is such a wide range of health issues involved from brain fog to cardiovascular problems to rare cases of psychosis and there s no agreed-upon metric for who qualifies as a long-haul patient.