Daily profile of glut1 and glut4 expression in tissues inside and outside the blood-brain barrier in control and streptozotocin-treated rats

Title:

Daily profile of glut1 and glut4 expression in tissues inside and outside the blood-brain barrier in control and streptozotocin-treated rats

Creator:

Šoltésová, D., Veselá, A., Boris Mravec, and Iveta Herichová

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:470e1c52-811e-4f98-b47d-98e57e3d4b55
uuid:470e1c52-811e-4f98-b47d-98e57e3d4b55

Subject:

Fyziologie člověka a srovnávací fyziologie, srdce, mozeček, cerebellum, frontal cortex, glucose transporter, circadian, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print

Description:

Glucose is molecule usually studied in relation to metabolism. Except for this traditional view, it is known that under certain conditions glucose can serve as a signal molecule for the circadian system. The circadian system is entrained by relevant synchronizing cues that can be tissue-dependent. Central oscillator is synchronized mainly by light-dark cycle, while peripheral oscillators can be entrained by food intake. Glucose transport in the organism is controlled by insulin dependent and independent mechanism. Therefore, we employed streptozotocin- induced diabetes to elucidate the influence of metabolic changes on glucose transporter ( glut1, glut4 ) 24-h expression profile in peripheral oscillators in tissues, inside (frontal cortex, cerebellum) and outside (heart) the blood-b rain barrier. Diabetes was induced by streptozotocin inje ction. Seventeen days later, sampling was performed during a 24-h cycle. Gene expression was measured using real-time PCR. We observed down- regulation of glut1 and glut4 expression in the heart of diabetic rats. The expression of glut1 and glut4 in brain areas was not down-regulated, however, we ob served trend to phase advance in glut1 expression in the cerebellum. These results may indicate higher glucose levels in diabetic brain, which might influence regulation of clock gene expressi on in different manner in brain compared to periphery., D. Šoltésová ... [et al.]., and Obsahuje bibliografii a bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2013 Volume:62 | Number:Suppl 1

Harvested from:

CDK

Metadata only:

false