OBJECTIVE: Using the method of reverse transcription-polymerase chain reaction (RT-PCR) to detect the related gene expression,with a view to clarify the principal mechanism that the neuroprotection of paeoniflorin (PF). METHOD: At the seventh day, after the pretreatment of PF (0.5, 2, 10 micromol x L(-1)), with 30 min primary cultures of neurons from the cerebral cortex of 16 days old embryo rats were injured with corticosterone (200 micromol x L(-1)). After 48 h, the methods of RT-PCR was used to detect the expression of Bcl-2, Bax, Caspase-3, BDNF mRNA. RESULT: Compared with model group, the dose of PF(2, 10 micromol x L(-1)) not only can degrade the expression of Bax, Caspase-3 mRNA, but also can raise the expression of Bcl-2, BDNF mRNA notablely (P < 0.05). CONCLUSION: The data indicated that the principal mechanism of prophylactic neuroprotective effect of PF on corticosterone-induced neurons damages maybe due to PF can raise the expression of apoptosis-related genes Bel-2, Bax, Caspase-3 mRNA, and also ascribe to PF can raise the expression of neurotrophic factor.
OBJECTIVE: Using the method of reverse transcription-polymerase chain reaction (RT-PCR) to detect the related gene expression,with a view to clarify the principal mechanism that the neuroprotection of paeoniflorin (PF). METHOD: At the seventh day, after the pretreatment of PF (0.5, 2, 10 micromol x L(-1)), with 30 min primary cultures of neurons from the cerebral cortex of 16 days old embryo rats were injured with corticosterone (200 micromol x L(-1)). After 48 h, the methods of RT-PCR was used to detect the expression of Bcl-2, Bax, Caspase-3, BDNF mRNA. RESULT: Compared with model group, the dose of PF(2, 10 micromol x L(-1)) not only can degrade the expression of Bax, Caspase-3 mRNA, but also can raise the expression of Bcl-2, BDNF mRNA notablely (P < 0.05). CONCLUSION: The data indicated that the principal mechanism of prophylactic neuroprotective effect of PF on corticosterone-induced neurons damages maybe due to PF can raise the expression of apoptosis-related genes Bel-2, Bax, Caspase-3 mRNA, and also ascribe to PF can raise the expression of neurotrophic factor.
Authors: Matteo M Pusceddu; Yvonne M Nolan; Holly F Green; Ruairi C Robertson; Catherine Stanton; Philip Kelly; John F Cryan; Timothy G Dinan Journal: Int J Neuropsychopharmacol Date: 2015-12-12 Impact factor: 5.176