Phil Ok Koh


Affiliation: Gyeongsang National University
Country: Korea


  1. Koh P. Melatonin regulates nitric oxide synthase expression in ischemic brain injury. J Vet Med Sci. 2008;70:747-50 pubmed
    ..This study provides further evidence that melatonin exerts neuroprotective effects, and the regulation of NOS isoforms by melatonin may contribute to the neuroprotective effects. ..
  2. Koh P. Proteomic analysis of focal cerebral ischemic injury in male rats. J Vet Med Sci. 2010;72:181-5 pubmed
    ..These results suggest that cerebral ischemia induces neuronal cells death by changing expression levels of several proteins. ..
  3. Koh P. Gingko biloba extract (EGb 761) prevents cerebral ischemia-induced p70S6 kinase and S6 phosphorylation. Am J Chin Med. 2010;38:727-34 pubmed
    ..The results of this study provide evidence that EGb 761 protects neuronal cells against ischemic brain injury by preventing injury-induced decreases in p70S6 kinase and S6 phosphorylation. ..
  4. Koh P. Estradiol prevents the injury-induced decrease of 90 ribosomal S6 kinase (p90RSK) and Bad phosphorylation. Neurosci Lett. 2007;412:68-72 pubmed
    ..Our findings suggest that estradiol prevents cell death due to brain injury and that Raf-MEK-ERK cascade activation and its downstream targets, p90RSK, Bad phosphorylation by estradiol mediated these protective effects. ..
  5. Koh P. Streptozotocin-induced diabetes increases the interaction of Bad/Bcl-XL and decreases the binding of pBad/14-3-3 in rat testis. Life Sci. 2007;81:1079-84 pubmed
    ..Our findings suggest that streptozotocin-induced diabetes increases apoptotic cell death in testis tissue through the up-and down-regulation of Bcl-2 family proteins and the interaction of Bad and Bcl-X(L). ..
  6. Koh P. Melatonin attenuates the focal cerebral ischemic injury by inhibiting the dissociation of pBad from 14-3-3. J Pineal Res. 2008;44:101-6 pubmed
  7. Koh P. Gingko biloba extract (EGb 761) prevents increase of Bad-Bcl-XL interaction following cerebral ischemia. Am J Chin Med. 2009;37:867-76 pubmed
    ..The finding suggests that EGb 761 prevents cell death against ischemic brain injury and EGb 761 neuroprotection is affected by preventing the injury-induced increase of Bad and Bcl-X(L) interaction. ..
  8. Koh P. Identification of proteins differentially expressed in cerebral cortexes of Ginkgo biloba extract (EGb761)-treated rats in a middle cerebral artery occlusion model--a proteomics approach. Am J Chin Med. 2011;39:315-24 pubmed
    ..These results suggest that EGb 761 protects neuronal cells against ischemic brain injury through the specific up- and down-modulation of various proteins...