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- W3121569232 abstract "Moderate stress increases memory and facilitates adaptation. In contrast, intense stress can induce pathological memories as observed in post-traumatic stress disorders (PTSD). A shift in the balance between the expression of tPA and PAI-1 proteins is responsible for this transition. In conditions of moderate stress, glucocorticoid hormones increase the expression of the tPA protein in the hippocampal brain region which by triggering the Erk1/2MAPK signaling cascade strengthens memory. When stress is particularly intense, very high levels of glucocorticoid hormones then increase the production of PAI-1 protein, which by blocking the activity of tPA induces PTSD-like memories. PAI-1 levels after trauma could be a predictive biomarker of the subsequent appearance of PTSD and pharmacological inhibition of PAI-1 activity a new therapeutic approach to this debilitating condition." @default.
- W3121569232 created "2021-02-01" @default.
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- W3121569232 date "2021-01-28" @default.
- W3121569232 modified "2023-10-17" @default.
- W3121569232 title "PAI-1 protein is a key molecular effector in the transition from normal to PTSD-like fear memory" @default.
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- W3121569232 doi "https://doi.org/10.1038/s41380-021-01024-1" @default.
- W3121569232 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8589667" @default.