title: Catalpol attenuates nitric oxide increase via ERK signaling pathways induced by rotenone in mesencephalic neurons.
abstract: Catalpol has been shown to rescue neurons from kinds of damage in vitro and in vivo in previous reports. However, the effect of catalpol on the nitric oxide (NO) system via MAPKs signaling pathway of mesencephalic neurons largely remains to be verified. The current study examined that whether catalpol modulated NO and iNOS increase by rotenone in primary mesencephalic neurons and investigated its underlying signaling pathways. Present results indicated that catalpol inhibited primary mesencephalic neurons from apoptosis by morphological assay, immunocytochemistry and flow cytometric evaluation. Moreover, the ERK signaling pathway plays an important role in NO-mediated degeneration of neuron. The current results suggest that catalpol is a potential agent for the prevention of neurons apoptosis by regulating NO and iNOS increase in ERK-mediated neurodegenerative disorders.
authors.affiliation: Dalian University of Technology, Liaoning, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Bi
authors.forename: Bo
authors.initials: B
authors.lastname: Jiang
authors.forename: Shuang
authors.initials: S
authors.lastname: Hao
authors.forename: Aihong
authors.initials: A
authors.lastname: Zhang
authors.forename: Yuesheng
authors.initials: Y
authors.lastname: Dong
authors.forename: Tao
authors.initials: T
authors.lastname: Jiang
authors.forename: Lijia
authors.initials: L
authors.lastname: An
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000187:drug effects / Q000502:physiology; D015415:Biomarkers / Q000032:analysis / Q000378:metabolism; D002478:Cells, Cultured; D004298:Dopamine / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions / Q000502:physiology; D004365:Drugs, Chinese Herbal / Q000494:pharmacology; D048049:Extracellular Signal-Regulated MAP Kinases / Q000187:drug effects* / Q000378:metabolism; D005960:Glucosides / Q000494:pharmacology*; D057888:Iridoid Glucosides; D039823:Iridoids / Q000494:pharmacology*; D008636:Mesencephalon / Q000187:drug effects* / Q000196:embryology / Q000378:metabolism; D051379:Mice; D019636:Neurodegenerative Diseases / Q000188:drug therapy / Q000378:metabolism / Q000503:physiopathology; D009474:Neurons / Q000187:drug effects / Q000378:metabolism; D018696:Neuroprotective Agents / Q000494:pharmacology*; D009569:Nitric Oxide / Q000378:metabolism*; D052247:Nitric Oxide Synthase Type II / Q000187:drug effects / Q000378:metabolism; D010300:Parkinson Disease / Q000188:drug therapy / Q000378:metabolism / Q000503:physiopathology; D012402:Rotenone / Q000037:antagonists & inhibitors*; D013378:Substantia Nigra / Q000187:drug effects / Q000378:metabolism / Q000503:physiopathology; D013997:Time Factors; D014446:Tyrosine 3-Monooxygenase / Q000187:drug effects / Q000378:metabolism; D014475:Uncoupling Agents / Q000037:antagonists & inhibitors
chemical_list: D015415:Biomarkers; D004365:Drugs, Chinese Herbal; D005960:Glucosides; D057888:Iridoid Glucosides; D039823:Iridoids; D018696:Neuroprotective Agents; D014475:Uncoupling Agents; D012402:Rotenone; C078040:catalpol; D009569:Nitric Oxide; D052247:Nitric Oxide Synthase Type II; D014446:Tyrosine 3-Monooxygenase; D048049:Extracellular Signal-Regulated MAP Kinases; D004298:Dopamine