Heat shock protein 70 and antibodies to heat shock protein 60 are associated with cerebrovascular atherosclerosis

热休克蛋白 70 和热休克蛋白 60 抗体与脑血管动脉粥样硬化有关

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作者:Ružica Galović, Zlata Flegar-Meštrić, Vinko Vidjak, Mirela Matokanović, Karmela Barišić

Conclusions

Higher circulating anti-Hsp60 is associated with advanced cerebrovascular atherosclerosis as a consequence of the autoimmunity part of the inflammation and bursting of atherosclerosis. Higher levels of Hsp70 observed in the control group could be protective in the development of atherosclerotic changes.

Methods

Ultrasound Doppler examination of carotid arteries was used to discriminate between control and cerebrovascular atherosclerosis subjects. Twenty eight subjects without carotid obstruction were selected as controls. Fifty patients with obstruction of cerebrovascular blood flow were evaluated for the degree of stenosis of cerebral arteries by digital subtraction angiography. In parallel, serum concentrations of Hsp60, Hsp70, anti-Hsp60 and anti-Hsp70 were measured by ELISA kits.

Results

Anti-Hsp60 was significantly higher (P=0.003) in the atherosclerosis group than in the control group (23.62ng/L vs. 15.28ng/L, respectively, expressed as median). Circulating Hsp70 was lower in the atherosclerosis than in the control group (P=0.048), with respective median values of 0.00μg/L vs. 0.22μg/L. Concentrations of Hsp60 and anti-Hsp70 did not differ significantly between the control and atherosclerosis group. Conclusions: Higher circulating anti-Hsp60 is associated with advanced cerebrovascular atherosclerosis as a consequence of the autoimmunity part of the inflammation and bursting of atherosclerosis. Higher levels of Hsp70 observed in the control group could be protective in the development of atherosclerotic changes.

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