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DNA Methylation Inh...
DNA Methylation Inhibitor Zebularine Confers Stroke Protection in Ischemic Rats
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- Dock, Hua (författare)
- Linköpings universitet,Avdelningen för mikrobiologi och molekylär medicin,Medicinska fakulteten
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- Theodorsson, Annette (författare)
- Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Neurokirurgiska kliniken US
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- Theodorsson, Elvar (författare)
- Linköpings universitet,Avdelningen för mikrobiologi och molekylär medicin,Medicinska fakulteten,Region Östergötland, Klinisk kemi
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(creator_code:org_t)
- 2015-04-01
- 2015
- Engelska.
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Ingår i: TRANSLATIONAL STROKE RESEARCH. - : Springer Verlag (Germany). - 1868-4483 .- 1868-601X. ; 6:4, s. 296-300
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 5-Aza-deoxycytidine (5-aza-dC) confers neuroprotection in ischemic mice by inhibiting DNA methylation. Zebularine is another DNA methylation inhibitor, less toxic and more stable in aqueous solutions and, therefore more biologically suitable. We investigated Zebularines effects on brain ischemia in a rat middle cerebral artery occlusion (MCAo) model in order to elucidate its therapeutic potential. Male Wistar wild-type (WT) rats were randomly allocated to three treatment groups, vehicle, Zebularine 100 mu g, and Zebularine 500 mu g. Saline (10 mu L) or Zebularine (10 mu L) was administered intracerebroventricularly 20 min before 45-min occlusion of the middle cerebral artery. Reperfusion was allowed after 45-min occlusion, and the rats were sacrificed at 24-h reperfusion. The brains were removed, sliced, and stained with 2 % 2,3,5-triphenyltetrazolium chloride (TTC) before measuring infarct size. Zebularine (500 mu g) reduced infarct volumes significantly (p less than 0.05) by 61 % from 20.7 +/- 4.2 % in the vehicle treated to 8.1 +/- 1.6 % in the Zebularine treated. Zebularine (100 mu g) also reduced infarct volumes dramatically by 55 to 9.4 +/- 1.2 %. The mechanisms behind this neuroprotection is not yet known, but the results agree with previous studies and support the notion that Zebularine-induced inhibition of DNA methyltransferase ameliorates ischemic brain injury in rats.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
Nyckelord
- Zebularine; DNA methylation inhibitor; Ischemic stroke; Neuroprotection
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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