Editing Chain reaction (section)

==Living organisms==
{{main|Chain reactions in living organisms}}
Examples of chain reactions in living organisms include excitation of neurons in epilepsy and [[lipid peroxidation]]. In peroxidation, a lipid radical reacts with oxygen to form a peroxyl radical (L• + O<sub>2</sub> → LOO•). The peroxyl radical then oxidises another lipid, thus forming another lipid radical (LOO• + L–H → LOOH + L•).<ref>{{cite journal |last1=Yin |first1=Huiyong |last2=Xu |first2=Libin |last3=Porter |first3=Ned A. |title=Free Radical Lipid Peroxidation: Mechanisms and Analysis |journal=Chemical Reviews |date=12 October 2011 |volume=111 |issue=10 |pages=5944–5972 |doi=10.1021/cr200084z|pmid=21861450 }}</ref> A chain reaction in glutamatergic synapses is the cause of synchronous discharge in some epileptic seizures.<ref>{{cite book |last1=Jefferys |first1=John G.R |last2=Traub |first2=Roger D. |title=Progress in Brain Research Volume 116 |chapter=Chapter 22 Electrophysiological substrates for focal epilepsies |date=1998 |volume=116 |pages=351–358 |doi=10.1016/S0079-6123(08)60447-1|pmid=9932387 |isbn=978-0-444-82754-8 }}</ref>