Résumé
An in vitro detection method of the gastrointestinal absorption of Pilose Antler protein was established for mixed protein activity. Five bands of protein with molecular weight of 17.8-160 kD derived from the Pilose Antler were extracted and sufficiently labeled with FITC (FITC-PE). The stability and variation of FITC-PE in gastrointestinal circumstances were detected by native polyacrylamide gel electrophoresis and confocal laser scanning microscope. Results showed that the main component of FITC-PE kept invariant after being reacted with artificial gastric fluid and artificial intestinal fluid. The fluorescence signal was detected 20 min after administration in the valgus intestinal purse experiment, and three kinds of protein, with molecular weight of 45, 25, and 17.8 kD, were detected in the mixture of absorbent protein. The research laid the foundation for the further in vivo study of Pilose Antler protein. Meanwhile, it would be an in vitro screening method for the absorption, distribution and metabolism of mixed protein from traditional Chinese medicine.
Sujets)
Animaux , Mâle , Rats , Andouillers , Chimie , Cervidae , Fluorescéine-5-isothiocyanate , Absorption intestinale , Muqueuse intestinale , Métabolisme , Matière médicale , Chimie , Pharmacocinétique , Microscopie confocale , Masse moléculaire , Électrophorèse sur gel de polyacrylamide non dénaturant , Protéines , Chimie , Pharmacocinétique , Rat Wistar , Estomac , MétabolismeRésumé
<p><b>OBJECTIVE</b>To observe the blood enriching function of Siwu Tang and its effect on Epo and G-CSF gene expressions in bone marrow of blood deficiency mice, and thus provide the basis for understanding the molecular mechanism of blood enriching function of Siwu Tang.</p><p><b>METHOD</b>The animal model of blood deficiency were established in the mice by using 3.5 Gy60Co gamma-ray. Peripheral blood cells were analyzed and CFU-GM, BFU-E, CFU-E and CFU-mix were counted in bone marrow colony cultured. Both Epo and G-CSF gene expressions in bone marrow were measured with RT-PCR.</p><p><b>RESULT</b>Siwu Tang significantly increased the number of peripheral blood cells and the amount of CFU-GM, BFU-E, CFU-E and CFU-mix in bone marrow and enhanced Epo and G-CSF gene expression in bone marrow in the mice with blood deficiency.</p><p><b>CONCLUSION</b>The promotion of Epo and G-CSF gene expressions in bone marrow may be one of the mechanisms underlying the blood enriching function of Siwu Tang decoction.</p>