Immunohistochemical study of endothelial nitric oxide synthase in the trigeminal ganglia of a crotaline snake Trimeresurus flavoviridis |
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Authors: | Moon Changjong Terashima Shin-ichi Shin Taekyun |
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Institution: | Department of Physiology, University of the Ryukyus School of Medicine, Okinawa, Japan. |
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Abstract: | The immunoreactivity of constitutive endothelial nitric oxide synthase (eNOS) was studied in the trigeminal ganglia (TG) of a crotaline snake, Trimeresurus flavoviridis. eNOS immunoreactivity was found in TG neurons of different sizes. The percentage of eNOS-positive TG neurons was significantly higher in the mandibular division than in the infrared-related divisions, the maxillary division and ophthalmic ganglion (p<0.001). These findings suggest that eNOS in the TG of crotaline snakes is involved in constitutive neurotransmission in the TG, and is minimally involved in processing in the infrared-sensory system. |
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