PMID- 22229324 OWN - NLM STAT- MEDLINE DCOM- 20120807 LR - 20191027 IS - 1996-3181 (Electronic) IS - 1871-5273 (Linking) VI - 11 IP - 1 DP - 2012 Feb TI - Cerebrolysin, a mixture of neurotrophic factors induces marked neuroprotection in spinal cord injury following intoxication of engineered nanoparticles from metals. PG - 40-9 AB - Spinal cord injury (SCI) is the world's most disastrous disease for which there is no effective treatment till today. Several studies suggest that nanoparticles could adversely influence the pathology of SCI and thereby alter the efficacy of many neuroprotective agents. Thus, there is an urgent need to find suitable therapeutic agents that could minimize cord pathology following trauma upon nanoparticle intoxication. Our laboratory has been engaged for the last 7 years in finding suitable therapeutic strategies that could equally reduce cord pathology in normal and in nanoparticle-treated animal models of SCI. We observed that engineered nanoparticles from metals e.g., aluminum (Al), silver (Ag) and copper (Cu) (50-60 nm) when administered in rats daily for 7 days (50 mg/kg, i.p.) resulted in exacerbation of cord pathology after trauma that correlated well with breakdown of the blood-spinal cord barrier (BSCB) to serum proteins. The entry of plasma proteins into the cord leads to edema formation and neuronal damage. Thus, future drugs should be designed in such a way to be effective even when the SCI is influenced by nanoparticles. Previous research suggests that a suitable combination of neurotrophic factors could induce marked neuroprotection in SCI in normal animals. Thus, we examined the effects of a new drug; cerebrolysin that is a mixture of different neurotrophic factors e.g., brain-derived neurotrophic factor (BDNF), glial cell line derived neurotrophic factor (GDNF), nerve growth factor (NGF), ciliary neurotrophic factor (CNTF) and other peptide fragments to treat normal or nanoparticle-treated rats after SCI. Our observations showed that cerebrolysin (2.5 ml/kg, i.v.) before SCI resulted in good neuroprotection in normal animals, whereas nanoparticle-treated rats required a higher dose of the drug (5.0 ml/kg, i.v.) to induce comparable neuroprotection in the cord after SCI. Cerebrolysin also reduced spinal cord water content, leakage of plasma proteins and the number of injured neurons. This indicates that cerebrolysin in higher doses could be a good candidate for treating SCI cases following nanoparticle intoxication. The possible mechanisms and functional significance of these findings are discussed in this review. FAU - Menon, Preeti Kumaran AU - Menon PK AD - Laboratory of Cerebrovascular Research, Department of Surgical Sciences, Anesthesiology and Intensive Care Medicine, University Hospital, Uppsala University, SE-75185 Uppsala, Sweden. FAU - Muresanu, Dafin Fior AU - Muresanu DF FAU - Sharma, Aruna AU - Sharma A FAU - Mossler, Herbert AU - Mossler H FAU - Sharma, Hari Shanker AU - Sharma HS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PT - Review PL - United Arab Emirates TA - CNS Neurol Disord Drug Targets JT - CNS & neurological disorders drug targets JID - 101269155 RN - 0 (Amino Acids) RN - 0 (Neuroprotective Agents) RN - 37KZM6S21G (cerebrolysin) SB - IM MH - Amino Acids/pharmacokinetics/*therapeutic use MH - Animals MH - Disease Models, Animal MH - Edema/etiology MH - Humans MH - Metal Nanoparticles/*toxicity MH - Neurons/drug effects/pathology MH - Neuroprotective Agents/pharmacokinetics/*therapeutic use MH - Rats MH - Spinal Cord/blood supply/drug effects/pathology MH - Spinal Cord Diseases/*chemically induced/*drug therapy/pathology/physiopathology EDAT- 2012/01/11 06:00 MHDA- 2012/08/08 06:00 CRDT- 2012/01/11 06:00 PHST- 2011/07/30 00:00 [received] PHST- 2011/11/15 00:00 [revised] PHST- 2011/12/15 00:00 [accepted] PHST- 2012/01/11 06:00 [entrez] PHST- 2012/01/11 06:00 [pubmed] PHST- 2012/08/08 06:00 [medline] AID - BSP/CDTCNSND/E-Pub/00178 [pii] AID - 10.2174/187152712799960781 [doi] PST - ppublish SO - CNS Neurol Disord Drug Targets. 2012 Feb;11(1):40-9. doi: 10.2174/187152712799960781.