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      1. Author :
        Abdelwahab, M. G.; Fenton, K. E.; Preul, M. C.; Rho, J. M.; Lynch, A.; Stafford, P.; Scheck, A. C.
      2. Title :
      3. Type :
        Journal Article
      4. Year :
        2012
      5. Publication :
        PLoS One
      6. Products :
      7. Volume :
        7
      8. Issue :
        N/A
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        GL261-luc2, IVIS, 3-Hydroxybutyric Acid/metabolism; Animals; Blood Glucose/metabolism; Brain/metabolism/pathology; Combined Modality Therapy; Disease Models, Animal; Glioma/*diet therapy/*radiotherapy; Humans; Kaplan-Meier Estimate; *Ketogenic Diet; Ketones/blood; Mice; Mice, Inbred C57BL; Neoplasm Transplantation; Time Factors
      12. Abstract :
        INTRODUCTION: The ketogenic diet (KD) is a high-fat, low-carbohydrate diet that alters metabolism by increasing the level of ketone bodies in the blood. KetoCal(R) (KC) is a nutritionally complete, commercially available 4:1 (fat:carbohydrate+protein) ketogenic formula that is an effective non-pharmacologic treatment for the management of refractory pediatric epilepsy. Diet-induced ketosis causes changes to brain homeostasis that have potential for the treatment of other neurological diseases such as malignant gliomas. METHODS: We used an intracranial bioluminescent mouse model of malignant glioma. Following implantation animals were maintained on standard diet (SD) or KC. The mice received 2x4 Gy of whole brain radiation and tumor growth was followed by in vivo imaging. RESULTS: Animals fed KC had elevated levels of beta-hydroxybutyrate (p = 0.0173) and an increased median survival of approximately 5 days relative to animals maintained on SD. KC plus radiation treatment were more than additive, and in 9 of 11 irradiated animals maintained on KC the bioluminescent signal from the tumor cells diminished below the level of detection (p<0.0001). Animals were switched to SD 101 days after implantation and no signs of tumor recurrence were seen for over 200 days. CONCLUSIONS: KC significantly enhances the anti-tumor effect of radiation. This suggests that cellular metabolic alterations induced through KC may be useful as an adjuvant to the current standard of care for the treatment of human malignant gliomas.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/22563484
      14. Call Number :
        PKI @ kd.modi @ 2
      15. Serial :
        10485
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