The invention belongs to the technical field of neurobiology, and particularly relates to a targeted NPTX1-Kv7.2
signal axis for inhibiting neuronal hyperexcitation and improving
memory impairment formed by aging. According to the invention, a scene fear memory mouse behavior model is adopted,
experimental research is carried out by combining in-vitro brain slice
patch clamp recording, single-molecule
fluorescence in situ hybridization,
immunohistochemistry and other methods, and the result shows that NPTX1 can be used as a
cognitive disorder molecular marker, and neuronal hyperactivity caused by aging can be rescued by specifically supplementing NPTX1 in a DG
brain region; the activation of DG neurons during scene fear experience is improved, and
neuronal activation damage and dysmnesia caused by aging are improved; the retigabine serving as an
agonist of the NPTX1 interaction
protein Kv7.2 is injected in the intraperitoneal cavity, so that
neuron activation damage and dysmnesia caused by
senescence can also be effectively improved. The invention discloses the effect of the NPTX1-Kv7.2
signal axis in improving the
memory impairment of an aging individual, and provides a new thought and target spot for treating the
memory impairment caused by aging.