ABSTRACT
Objective To investigate the effect and mechanism of extract ginkgo biloba (EGb) on learning memory ability and hippocampus CA1 region Caspase-9P35 activity in dementia rats induced by D-gal.Methods 48 rats were randomly divided into six groups.The dementia model were established by injecting intraperitoneally with the D-gal and each EGb group was injected different doses of EGb simultaneously.TUNEL method was used to detect apoptosis of hippocampal neurons in the CA1 region.Immunohistochemistry and Western Blot were used to determine the expression of Caspase-9P35 in hippocampus CA1 region.Results Compared with the normal group,TUN EL-positive neurons ( (37.8 ± 1.3 ),(0.8 ± 0.2 ) ) and the activity of Caspase-9P35 ( (37.6 ±1.8 ),(6.2 ± 1.3 ) ) had significant increase in hippocampal CA1 subfield of D-gal group (P ＜ 0.01 ).Contrast to D-Gal group,TUNEL-positive neurons ( ( 17.6 ± 0.9),(9.8 ± 0.8 ),( 37.8 ± 1.3 ) ) and the activity of Caspase9P35( (28.6 ± 1.3),(25.0 ± 1.6),(37.6 ± 1.8) ) were significant decreased in EGb-M and EGb-H group (P＜0.01 ).While TUNEL-positive neurons and the activity of Caspase-9P35 had not significant difference in the therapy group than D-Gal group (P ＞ 0.05).Conclusion EGb can improve the cognitive level of the dementia rats.One of the therapeutic mechanisms may be to decrease the hippocampus CA1 region Caspase-9P35 activity.The results of the pretreatment group was more effective than the therapy group.
ABSTRACT
Objective To discuss the clinical value of combined determination of fasting blood glucose (FBG),glycosylated hemoglobin(HbA1c)and high-sensitivity C-reactive protein (hs-CRP)in patients with acute cerebral infarction.Methods 105 patients with acute cerebral infarction were scored using the standard of Europ Stroke Score(ESS) ,and the level of FBG,HbA1c and hs-CRP were measured.All the patients were divided into three groups,according to the level of FBG and HbA1c,and the index of three groups were compared.Results The hyperglycemic group without diabetes had lower ESS score than the group with normal blood glucose(P <0.01 )and the group with hyperglycemia and diabetes(P <0.05).Also the hyperglycemic group without diabetes had higher level of hs-CRP than the group with normal blood glucose(P <0.01)and the group with hyperglycemia and diabetes (P <0.05).Conclusion Patients with acute cerebral infarction associated with high FBG and high HbA1c had high hsCRP, and severe prognosis.