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  • Title: [Neurotrophins and pain].
    Author: Pezet S.
    Journal: Biol Aujourdhui; 2014; 208(1):21-9. PubMed ID: 24948016.
    Abstract:
    Neurotrophins are a family of trophic factors well known for their effects on neuronal survival, growth and neuronal differentiation. During the last decade, a large literature has shown in humans and in animal models that nerve growth factor (NGF) is a peripheral mediator of pain, especially in the states of inflammatory pain. NGF synthesis is indeed increased in a wide variety of inflammatory diseases and NGF neutralizing molecules are effective analgesic agents in these models of persistent pain. Therapeutical strategies targeting the sequestering of NGF did yield very encouraging results in clinical trials (stages II and III) but have been on hold since 2010 due to potential harmful effects in combination with non-steroid anti-inflammatory drug. NGF regulates the expression of a second neurotrophin, Brain Derived Neurotrophic Factor (BDNF), in nociceptors. BDNF is released where nociceptors are activated, and it acts as a modulator of pain in the central nervous system and is involved in central sensitization.
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