Δευτέρα 5 Σεπτεμβρίου 2016

The Effect of Advanced Motherhood on Newborn Offspring’s Hippocampal Neural Stem Cell Proliferation

Objective. To investigate the effect of advanced motherhood on rat hippocampal neural stem cell proliferation. Methods. Female parents were subdivided into control and old mother group by age, and neural stem cells were cultured from hippocampal tissues for 24 h newborn offspring. The diameter and numbers of neurospheres were examined by microscopy, and differences in proliferation were examined by EdU immunofluorescence, CCK-8 assay, and cell cycle analysis. Results. The number of neurospheres in the old mother group after culture was lower than the control group. Additionally, neurospheres’ diameter was smaller than that of the control group (). The EdU positive rate of the old mother group was lower than that of the control group (). CCK-8 assay results showed that the absorbance values for the old mother group were lower than that of the control group at 48 h and 72 h (). The proportions of cells in the S and G2/M phases of the cell cycle for the older mother group were less than that found for the control group (). Conclusion. The proliferation rates of hippocampal NSCs seen in the older mother group were lower than that seen in the control group.

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