Ferroptosis in heart failure
Pre-fixation was done with 2.5% glutaraldehyde phosphate (0.1 M, pH 7.4) overnight at 4 C
In physical dependence assay (isoniazid challenge assessed at 6, 14, 42 and 72 h after conditioning medication), when compared to diazepam non-conditioned healthy mice, in diazepam conditioned mice residual anticonvulsive activity was not present already at the earliest post-conditioning interval (i.e., not different latency to isoniazid-convulsions), whereas shorter preconvulsive latencies (as physical dependence/withdrawal hallmark) were noted in diazepam conditioned mice following isoniazid challenge at 42 h and at 72 h after end of conditioning treatment
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Mechanistically, impaired iron exporte.g., zinc-mediated inhibition of amyloid precursor protein (APP) ferroxidase activityprovides a route to local iron accumulation (Duce et al., 2010), while familial AD presenilin mutations confer selective vulnerability to ferroptosis in human neuronal models (Greenough et al., 2022)