PMID- 23684449 OWN - NLM STAT- MEDLINE DCOM- 20150430 LR - 20181202 IS - 1872-8227 (Electronic) IS - 0168-8227 (Linking) VI - 101 IP - 1 DP - 2013 Jul TI - Effect of indomethacin on cerebrovascular reactivity in patients with type 2 diabetes mellitus. PG - 81-7 LID - S0168-8227(13)00160-5 [pii] LID - 10.1016/j.diabres.2013.04.004 [doi] AB - AIM: Impaired cerebral vasoreactivity to endothelium-dependent stimuli were described in type 2 diabetes mellitus (T2DM), but the mechanisms underlying that impairment are still unclear. The aim of this study was to investigate the role of cyclooxygenases' metabolites in response to acute hypercapnic stimulus in cerebral vessels, in patients with T2DM. METHODS: Vascular responses in the breath-holding test (BHT) were assessed in the absence/presence of a non-selective, reversible-inhibitor of cyclooxygenases, indomethacin (INDO), by functional transcranial Doppler sonography of the middle cerebral artery (N of patients=50; 33 men and 17 women). The functional hemodynamic parameter mean flow velocity (MFV) was assessed at rest, before and 90min after 100mg of INDO, and during the BHT. Breath holding index (BHI) [(MFV at the end of BHT minus MFV at rest)/MFV at rest)x100/s of breath-holding] was calculated after BHT performed before and 90min after INDO. RESULTS: MFV at rest significantly decreased after INDO administration compared with a control condition before INDO (at rest before INDO from 49.36+/-15.09 to 36.72+/-8.45 after INDO, p<0.001) However, overall cerebral vessel vasoreactivity to hypercapnia, evaluated with BHI, was significantly improved after INDO administration compared with the BHI before INDO administration (from 0.68+/-0.4 to 1.27+/-0.42, p<0.001). CONCLUSIONS: The improvement in cerebral vasoreactivity in response to BHT after INDO administration suggests that the production of a vasoconstrictor metabolite of cyclooxygenase in diabetic patients was reduced by indomethacin consumption. CI - Copyright (c) 2013 Elsevier Ireland Ltd. All rights reserved. FAU - Vuletic, Vladimira AU - Vuletic V AD - Department of Neurology, Dubrava University Hospital, Zagreb, Croatia. Electronic address: vvuletic@kbd.hr. FAU - Drenjancevic, Ines AU - Drenjancevic I AD - Department of Physiology and Immunology, Faculty of Medicine Osijek, University Josip, Juraj Strossmayer, Osijek, Croatia. FAU - Rahelic, Dario AU - Rahelic D AD - Department of Endocrinology, Diabetes and Metabolic Disorders, Dubrava University Hospital, Zagreb, Croatia. FAU - Demarin, Vida AU - Demarin V AD - Medical Director, Medical Centre "Aviva", Zagreb, Croatia. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20130515 PL - Ireland TA - Diabetes Res Clin Pract JT - Diabetes research and clinical practice JID - 8508335 RN - 0 (Cardiovascular Agents) RN - XXE1CET956 (Indomethacin) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Brain/*drug effects MH - Cardiovascular Agents/*pharmacology MH - Cerebrovascular Circulation/*drug effects MH - Diabetes Mellitus, Type 2/*drug therapy/physiopathology MH - Female MH - Follow-Up Studies MH - Hemodynamics MH - Humans MH - *Hypercapnia MH - Indomethacin/*pharmacology MH - Male MH - Middle Aged MH - Middle Cerebral Artery/*drug effects MH - Prognosis MH - Prospective Studies MH - Ultrasonography, Doppler, Transcranial MH - Young Adult EDAT- 2013/05/21 06:00 MHDA- 2015/05/01 06:00 CRDT- 2013/05/21 06:00 PHST- 2013/01/29 00:00 [received] PHST- 2013/03/21 00:00 [revised] PHST- 2013/04/22 00:00 [accepted] PHST- 2013/05/21 06:00 [entrez] PHST- 2013/05/21 06:00 [pubmed] PHST- 2015/05/01 06:00 [medline] AID - S0168-8227(13)00160-5 [pii] AID - 10.1016/j.diabres.2013.04.004 [doi] PST - ppublish SO - Diabetes Res Clin Pract. 2013 Jul;101(1):81-7. doi: 10.1016/j.diabres.2013.04.004. Epub 2013 May 15.