上浒充通大 SHANGHAI JIAO TONG UNIVERSITY 1896 1920 1987 2006 introduction Histamine is widely distributed in body tissues;its functions as a neurotransmitter and neuromodulator. histidine histamine c00- storage mast cell and basophils allergy、 stimulate NO TONG release histamine◆H-Rintroduction Histamine is widely distributed in body tissues; its functions as a neurotransmitter and neuromodulator. histidine coo￾histamine storage mast cell and basophils allergy、 stimulate release histamine H-R