ABSTRACT
Objective: To investigate the expressions and possible roles of cyclin dependent kinase 5 (CDK5), p35 and P25 in the blood of patients with vascular cognitive impairment (VCI). Methods: Totally 91 cases of VCI were recruited as the study group, including 49 cases of non-dementia vascular cognitive impairment (VCIND) and 42 cases of vascular dementia (VAD), and 30 cases of cerebral apoplexy cognitive function (NC) and healthy control (N) group, respectively. RT-qPCR was used to detect the relative expression of CDK5 mRNA in the blood. Western blot method was used to detect the protein expressions of CDK5, p35 and p25 in each group. Results: The relative expression of CDK5 mRNA and the expression levels of CDK5, p35 and p25 protein in the four groups: VAD>VCIND>NC>N respectively, with significant differences among the groups (P<0.05). Conclusion: CDK5, p35 and p25 may be involved in the occurrence of VCI, and their expression levels are positively correlated with VCI.
ABSTRACT
Objective To investigate the effect and its mechanism of cyclin dependent protein kinase inhibitor Olomoucine treatment on experimental herpes simplex encephalitis(HSE). Methods 45 mice were randomly assigned to HSV-1 sham-infected group (n=15), HSV-1 infected control group (n=15) and Olomoucine treated group (n=15). Flow cytometry was used to detect the expression of brain cells surface antigen CD11b. The reverse transcription polymerase chain reaction (RT-PCR) to detect the expression of tumor necrosis factor-? (TNF-?) and Interleukin-6 (IL-6). TUNEL method was adopted to detect neural cells apoptosis. Pathologic slices of brain tissues were used to identify tissue morphology differences. The survival rates were compared between the treatment groups Acyclovir (n=20) and Olomoucine (n=20) by the method of Kaplan-Meier 2 weeks after HSV-1 infection. Results After HSV-1 infection, the expression of brain tissue CD11b, TNF-?, IL-6 were significantly increased compared with sham-infected group (allP
ABSTRACT
Objective To explore whether ganoderma spores could help the neural epithelial cell of embryonic neural tube stagnated by retinoic acid in G-0/G-1 phase reenter the cell cycle,keep on proliferating and differentiating,and could reduce the occurrence of neural tube defects(NTDs). Methods When E7.75d,mice of the control group and the ganoderma spores group were given intragastrically onetime retinoic acid all-trans.Then the ganoderma spores solution was given intragastrically to the ganoderma spores group.At E10.5d,The embryos of the two groups were taken out and the ratio of NTDs was counted respectively Immunofluorescence histochemistry and flow cytometry were applied to examine the expression of nestin,and DNA quantity staining and RT-PCR to detect the mRNA transcriptions of Cdk2 and Cdk4. Results The radio of NTDs in the ganoderma spores group was lower than that in the control group remarkably,but the level of nestin was higher.With the neural tube cell cycles compared the cell radio of G-0/G-1 phase in the control group was higher than that in the ganoderma spores group,while the ratio in the S phase in the control group,it was lower than that of the normal embryos in the ganoderma spores group.The neural epithelial cell of embryonic neural tube in the ganoderma spores group could transcript Cdk4 mRNA normally,with a low transcription rate in the control group.Conclusion Ganoderma spores can reduce the occurrence of embryonic NTDs induced by retinoic acid in pregnant mice.