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Protein kinase A-dependent Neuronal Nitric Oxide Synthase Activation Mediates the Enhancement of Baroreflex Response by Adrenomedullin in the Nucleus Tractus Solitarii of Rats
Authors:David HT Yen  Lih-Chi Chen  Yuh-Chiang Shen  Ying-Chen Chiu  I-Chun Ho  Ya-Jou Lou  I-Chin Chen  Jiin-Cherng Yen
Institution:(1) Institute of Emergency and Critical Care Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan;(2) Emergency Department, Taipei Veterans General Hospital, Taipei, Taiwan;(3) Department of Pharmacy, Taipei City Hospital, Taipei, Taiwan;(4) National Research Institute of Chinese Medicine, Taipei, Taiwan;(5) Institute of Pharmacology, School of Medicine, National Yang-Ming University, Taipei, Taiwan
Abstract:

Background  

Adrenomedullin (ADM) exerts its biological functions through the receptor-mediated enzymatic mechanisms that involve protein kinase A (PKA), or neuronal nitric oxide synthase (nNOS). We previously demonstrated that the receptor-mediated cAMP/PKA pathway involves in ADM-enhanced baroreceptor reflex (BRR) response. It remains unclear whether ADM may enhance BRR response via activation of nNOS-dependent mechanism in the nucleus tractus solitarii (NTS).
Keywords:
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