PMID- 12845427 OWN - NLM STAT- MEDLINE DCOM- 20050425 LR - 20240209 IS - 0342-4642 (Print) IS - 0342-4642 (Linking) VI - 29 IP - 8 DP - 2003 Aug TI - Correlation between neurotrophic factor expression and outcome of children with severe traumatic brain injury. PG - 1329-38 AB - OBJECTIVES: We evaluated the neurotrophic factors [nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), glia-derived neurotrophic factor (GDNF)] expression and their association with the severity and outcome of children with traumatic brain injury. DESIGN: Prospective observational clinical study. SETTING: Pediatric intensive care unit. PATIENTS: Fourteen children with severe head injury; 12 controls with obstructive hydrocephalus. MEASUREMENT: Cerebrospinal fluid (CSF) and plasma samples were collected 2 h (T1) and 24 h (T2) after head injury. Neurotrophic factor levels were measured using an immuno-enzymatic assay. MAIN RESULTS: In patients, neurotrophic factor mean levels were significantly different in both CSF and plasma, showing high levels of BDNF compared to NGF and GDNF. Considering T1 and T2 expression, in the CSF the level of NGF increased from 3.5+/-0.4 pg/ml to 48.2+/-11.7 pg/ml ( p<0.001); BDNF decreased from 4854.0+/-1303.7 pg/ml to 593.0+/-114.8 pg/ml ( p<0.001), while GDNF did not undergo significant variations. In plasma, no significant changes were observed. Regarding severity and outcome, BDNF levels showed a sharp peak after head injury, but the only significant association was between NGF expression in the CSF and a good outcome versus a poor outcome ( p=0.007). CONCLUSIONS: The variations in neurotrophic factor levels reflect an endogenous attempt at neuroprotection against biochemical and molecular changes after traumatic head injury. BDNF represents an early marker of brain injury, while NGF expression in the CSF was indicative of a good outcome and the role of this neurotrophin in the treatment of children with severe head injury may be hypothesized. FAU - Chiaretti, Antonio AU - Chiaretti A AD - Pediatric Intensive Care Unit, Catholic University Medical School, Policlinico Gemelli, Largo Gemelli, 1-00168, Rome, Italy. achiaretti@yahoo.it FAU - Piastra, Marco AU - Piastra M FAU - Polidori, Giancarlo AU - Polidori G FAU - Di Rocco, Concezio AU - Di Rocco C FAU - Caresta, Elena AU - Caresta E FAU - Antonelli, Alessia AU - Antonelli A FAU - Amendola, Tiziana AU - Amendola T FAU - Aloe, Luigi AU - Aloe L LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20030705 PL - United States TA - Intensive Care Med JT - Intensive care medicine JID - 7704851 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (GDNF protein, human) RN - 0 (Glial Cell Line-Derived Neurotrophic Factor) RN - 0 (Nerve Growth Factors) RN - 9061-61-4 (Nerve Growth Factor) SB - IM MH - Adolescent MH - Brain Injuries/*metabolism/pathology MH - Brain-Derived Neurotrophic Factor/blood/cerebrospinal fluid MH - Child MH - Child, Preschool MH - Female MH - Glial Cell Line-Derived Neurotrophic Factor MH - Humans MH - Infant MH - Male MH - Nerve Growth Factor/blood/cerebrospinal fluid MH - Nerve Growth Factors/*blood/*cerebrospinal fluid MH - Prognosis EDAT- 2003/07/08 05:00 MHDA- 2005/04/26 09:00 CRDT- 2003/07/08 05:00 PHST- 2002/06/21 00:00 [received] PHST- 2003/05/15 00:00 [accepted] PHST- 2003/07/08 05:00 [pubmed] PHST- 2005/04/26 09:00 [medline] PHST- 2003/07/08 05:00 [entrez] AID - 10.1007/s00134-003-1852-6 [doi] PST - ppublish SO - Intensive Care Med. 2003 Aug;29(8):1329-38. doi: 10.1007/s00134-003-1852-6. Epub 2003 Jul 5.