PMID- 23781882 OWN - NLM STAT- MEDLINE DCOM- 20140512 LR - 20211021 IS - 2000-1967 (Electronic) IS - 0300-9734 (Print) IS - 0300-9734 (Linking) VI - 118 IP - 4 DP - 2013 Nov TI - Effect of dexmedetomidine on plasma brain-derived neurotrophic factor: A double-blind, randomized and placebo-controlled study. PG - 235-9 LID - 10.3109/03009734.2013.808295 [doi] AB - BACKGROUND: Dexmedetomidine (DEX) has neuro-protective effects, but the clinical mechanism remains unclear. METHOD: Forty patients were randomly divided into two groups: group A (control) and group B (treated with DEX). Plasma concentrations of brain-derived neurotrophic factor (BDNF) were determined in blood samples using enzyme-linked immunosorbent assays at five time points: T1 (baseline), T2 (15 minutes after intubation and before the surgery was started), T3 (the end of surgery), T4 (10 minutes after extubation in the post-anesthesia care unit), and T5 (24 hours after the surgery). Changes in bispect (BIS) index, heart rates, and doses of anesthetics used for induction were also recorded. RESULTS: Baseline plasma concentrations of BDNF did not differ between group A and group B; 15 minutes after induction, concentrations of plasma BDNF were significantly reduced in group A. Twenty-four hours after surgery, the concentration was still higher in group B than in group A. In contrast, plasma concentrations of BDNF at other time points tested did not differ between the two groups. CONCLUSION: It appears that DEX could reverse the reduced plasma concentrations of BDNF caused by anesthetics, and this effect lasted for 24 hours after surgery. FAU - Yang, Lin AU - Yang L AD - Department of Anesthesiology, The Second Xiangya Hospital, Central South University and Anesthesiology Research Institute, Central South University , Changsha, Hunan , People's Republic of China. FAU - Xu, Jun-Mei AU - Xu JM FAU - Jiang, Xinghua AU - Jiang X FAU - Ruan, Wei AU - Ruan W FAU - Cui, Yulong AU - Cui Y FAU - He, Liang AU - He L LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20130620 PL - Sweden TA - Ups J Med Sci JT - Upsala journal of medical sciences JID - 0332203 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Hypnotics and Sedatives) RN - 67VB76HONO (Dexmedetomidine) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Adult MH - Anesthesia, General/methods MH - Brain-Derived Neurotrophic Factor/*blood MH - Dexmedetomidine/*therapeutic use MH - Diskectomy MH - Double-Blind Method MH - Enzyme-Linked Immunosorbent Assay MH - Heart Rate/drug effects MH - Humans MH - Hypnotics and Sedatives/*therapeutic use MH - Intervertebral Disc Degeneration/surgery MH - Lumbar Vertebrae/surgery MH - Male MH - Middle Aged MH - Time Factors PMC - PMC4190894 EDAT- 2013/06/21 06:00 MHDA- 2014/05/13 06:00 PMCR- 2013/11/01 CRDT- 2013/06/21 06:00 PHST- 2013/06/21 06:00 [entrez] PHST- 2013/06/21 06:00 [pubmed] PHST- 2014/05/13 06:00 [medline] PHST- 2013/11/01 00:00 [pmc-release] AID - UPS_A_808295_O [pii] AID - 10.3109/03009734.2013.808295 [doi] PST - ppublish SO - Ups J Med Sci. 2013 Nov;118(4):235-9. doi: 10.3109/03009734.2013.808295. Epub 2013 Jun 20.