PMID- 19014354 OWN - NLM STAT- MEDLINE DCOM- 20090731 LR - 20220304 IS - 1470-8736 (Electronic) IS - 0143-5221 (Print) IS - 0143-5221 (Linking) VI - 116 IP - 10 DP - 2009 May TI - Desferroxamine infusion increases cerebral blood flow: a potential association with hypoxia-inducible factor-1. PG - 771-9 LID - 10.1042/CS20080320 [doi] AB - Finding an effective means to improve cerebral perfusion during hypoxic/ischaemic stress is essential for neuroprotection. Studies in animal models of stroke have shown that desferroxamine activates HIF-1 (hypoxia-inducible factor-1), reduces brain damage and promotes functional recovery. The present study was designed to investigate the effects of desferroxamine infusion on the cerebral circulation in humans. Fifteen volunteers were enrolled in a randomized double-blind placebo-controlled crossover study. We measured cerebral blood flow velocity by transcranial Doppler ultrasonography in the middle cerebral artery, arterial blood pressure, end-tidal CO(2), as well as HIF-1 protein and serum lactate dehydrogenase concentrations in response to 8 h of desferroxamine compared with placebo infusion. Cerebrovascular resistance was calculated from the ratio of steady-state beat-to-beat values for blood pressure to blood flow velocity. We found that desferroxamine infusion was associated with a significant cerebral vasodilation. Moreover, decreased cerebrovascular resistance was temporally correlated with an increased HIF-1 protein concentration as well as HIF-1 transcriptional activation, as measured by serum lactate dehydrogenase concentration. The findings of the present study provide preliminary data suggesting that activators of HIF-1, such as desferroxamine, may protect neurons against ischaemic injury by dilating cerebral vessels and enhancing cerebral perfusion. FAU - Sorond, Farzaneh A AU - Sorond FA AD - Department of Neurology, Stroke Division, Brigham and Women's Hospital, Boston, MA 02115, USA. fsorond@partners.org FAU - Shaffer, Michele L AU - Shaffer ML FAU - Kung, Andrew L AU - Kung AL FAU - Lipsitz, Lewis A AU - Lipsitz LA LA - eng GR - Z01 AG000294/ImNIH/Intramural NIH HHS/United States GR - AG08812/AG/NIA NIH HHS/United States GR - K12AG00294/AG/NIA NIH HHS/United States GR - P60 AG008812/AG/NIA NIH HHS/United States GR - T32 AG023480/AG/NIA NIH HHS/United States GR - AG05134/AG/NIA NIH HHS/United States GR - K23 AG030967-01A1/AG/NIA NIH HHS/United States GR - K12 AG000294/AG/NIA NIH HHS/United States GR - P50 AG005134-268380/AG/NIA NIH HHS/United States GR - P01 AG004390/AG/NIA NIH HHS/United States GR - P01 AG004390-25/AG/NIA NIH HHS/United States GR - P50 AG005134/AG/NIA NIH HHS/United States GR - K23 AG030967/AG/NIA NIH HHS/United States GR - AG004390/AG/NIA NIH HHS/United States PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, N.I.H., Extramural PL - England TA - Clin Sci (Lond) JT - Clinical science (London, England : 1979) JID - 7905731 RN - 0 (Hypoxia-Inducible Factor 1) RN - 0 (Neuroprotective Agents) RN - 0 (Siderophores) RN - 0 (Vasodilator Agents) RN - J06Y7MXW4D (Deferoxamine) SB - IM MH - Adult MH - Aged MH - Blood Flow Velocity MH - Blood Pressure/physiology MH - Cerebrovascular Circulation MH - Cross-Over Studies MH - Deferoxamine/*pharmacology MH - Double-Blind Method MH - Female MH - Humans MH - Hypoxia-Inducible Factor 1/*drug effects/metabolism MH - Male MH - Middle Aged MH - Neuroprotective Agents/*pharmacology MH - Siderophores/*pharmacology MH - Tilt-Table Test MH - Vasodilation/drug effects MH - Vasodilator Agents/*pharmacology MH - Young Adult PMC - PMC2854553 MID - NIHMS190309 EDAT- 2008/11/19 09:00 MHDA- 2009/08/01 09:00 PMCR- 2010/04/14 CRDT- 2008/11/19 09:00 PHST- 2008/11/19 09:00 [pubmed] PHST- 2009/08/01 09:00 [medline] PHST- 2008/11/19 09:00 [entrez] PHST- 2010/04/14 00:00 [pmc-release] AID - CS20080320 [pii] AID - 10.1042/CS20080320 [doi] PST - ppublish SO - Clin Sci (Lond). 2009 May;116(10):771-9. doi: 10.1042/CS20080320.