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Immunosenescence Profile Is Associated With Increased Susceptibility to Severe COVID-19

4 months ago
In this study, we tested the hypothesis that the immunosenescence profile could account for the disproportional susceptibility of the elderly to severe forms of COVID-19. The immunological profiles of volunteers residing in endemic and non-endemic areas for chronic infectious diseases were analyzed at the early stage of SARS-CoV-2 infection. A unique signature of inflammatory plasma mediators was identified in COVID-19 volunteers when compared to individuals with other flu-like syndromes....
Lucas Haniel A Ventura

PHGDH-mediated serine synthesis in astrocytes supports neuroinflammation by sustaining NADH level to promote histone acetylation

4 months ago
Neuroinflammation contributes to the loss of dopamine neurons and motor dysfunctions in Parkinson's disease (PD). How cell metabolism regulates neuroinflammation by modulating epigenetic modifications is largely unknown. In this study, we found that the expression of phosphoglycerate dehydrogenase (PHGDH) which catalyzes the first step of the de novo serine synthesis pathway was mainly expressed in astrocytes and l-methyl-4-phenyl-l,2,3,6-tetrahydropyridine (MPTP) injection triggered the...
Mengfei Lv