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Role of β-endorphin in conA-induced spleen cell proliferation in rats with traumatic hemorrhagic shock / 第三军医大学学报
Journal of Third Military Medical University ; (24): 404-406, 2001.
Artigo em Chinês | WPRIM | ID: wpr-410579
ABSTRACT
Objective To investigate the role of β-endorphin (β-EP) in conA-induced spleen cell proliferation after traumatic hemorrhagic shock. Methods ①Wistar rats with traumatic hemorrhagic shock were used and killed 0, 1, 3, 6,12 and 24 h after traumatic hemorrhagic shock. Plasma specimens were collected and β-EP levels in plasma were detected. Rats with sham-operation served as the control. ②Spleen cells isolated from normal rats were cultured in shock plasma (group Ⅰ), inactivated shock plasma (group Ⅱ) and shock plasma+β-EP antiserum (group Ⅲ) respectively. Con A-induced spleen cell proliferation was observed. Results ①The plasma β-EP level was elevated significantly immediately after shock, and reached the peak 1 h later, then showed a deceasing tendency and restored to the level as before shock at 24 h. ②Shock plasma remarkedly suppressed spleen cell response to the mitogen conA (P<0.01) compared with control; ConA-induced spleen cell proliferative function in group Ⅱ was significantly increased than that in group Ⅰ (P<0.01), so did in group Ⅲ, which still lower than in control. Conclusion The significantly elevated β-EP in the plasma after hemorrhagic shock might play an important role in inhibiting the proliferation of spleen cells.
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Journal of Third Military Medical University Ano de publicação: 2001 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Idioma: Chinês Revista: Journal of Third Military Medical University Ano de publicação: 2001 Tipo de documento: Artigo