title: Effect of dyslipidemia on intima-media thickness of intra- and extracranial atherosclerosis by regulating the expression of hsp70 in rabbits.
abstract: The aim of this study was to explore the effect of dyslipidemia on intima-media thickness (IMT) of Intra- and extracranial atherosclerosis by regulating the expression of heat shock protein 70 (HSP70) in rabbits. Twenty-seven male white rabbits were randomly divided into normal control group A, high fat group B and high fat + endothelial injury operation group C (each group was 9), we measured lipids and obtained tissues from different cerebral arteries including Bilateral common carotid artery (CCA), Internal carotid artery (ICA), middle cerebral artery (MCA) and vertebral artery (VA). Pathological analysis were done, western blot analysis was used to detect the expression of HSP70 in CCA and MCA. The Serum lipid levels were overall significantly increased at 12(th) week in Group B and Group C compared to normal control (P < 0.05); at 12(th) week, the IMT of CCA and MCA in group B and C were showed significant increment compared with Group A; the correlation between HDL/CHOL/LDL and IMT of different cerebral arteries are as follows: MCA > ICA > CCA > VA; between TG and IMT of different cerebral arteries: VA > ICA > MCA > CCA; the expression of HSP70 from MCA were increased compared with CCA in group B and group C (P < 0.05). Significant positive correlations were observed between hyperlipidemia and different cerebral arteries. Hyperlipidemia has more impact on IMT of intracranial cerebral arteries. The expression of HSP70 from intracranial cerebral arteries is significantly increased. The mechanisms underlied was speculated that might be involved in inhibiting the inflammatory via HSP70.
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Zhilan
authors.initials: Z
authors.lastname: Tu
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Dongya
authors.initials: D
authors.lastname: Huang
authors.affiliation: Department of Neurology, Sixth People's Hospital of Shanghai Jiaotong University Shanghai 200240, China.
authors.forename: Jiajun
authors.initials: J
authors.lastname: Yang
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: R
authors.initials: R
authors.lastname: Ojha
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Yaping
authors.initials: Y
authors.lastname: Xiao
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Rong
authors.initials: R
authors.lastname: Liu
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Cui
authors.initials: C
authors.lastname: Du
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Nan
authors.initials: N
authors.lastname: Shen
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Hedi
authors.initials: H
authors.lastname: An
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Yu
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Erli
authors.initials: E
authors.lastname: Yue
authors.affiliation: Department of Neurology, East Hospital, Tongji University School of Medicine Shanghai 200120, China.
authors.forename: Zhifang
authors.initials: Z
authors.lastname: Huang
keywords: HSP70; High fat; cerebral atherosclerosis; dyslipidemia; intima