抗炎化合物HB0314在大鼠体内的药动学及绝对生物利用度研究
发布时间:2019-01-01 12:20
【摘要】:目的:建立大鼠血浆样品中抗炎化合物HB0314的检测方法,并研究其在大鼠体内的药动学特征。方法:采用超高效液相色谱-串联质谱法(UPLC-MS/MS),色谱柱为Waters Acquity UPLC~(TM)BEH C_(18)柱,流动相为0.1%甲酸水溶液(A)-甲醇(B),梯度洗脱(0~2 min,70%~90%B),流速为0.25 mL/min,柱温为30℃,进样量为5μL;采用电喷雾离子源,毛细管电压为3 k V,离子源温度为150℃,脱溶剂气温度为450℃,脱溶剂气流量为600 L/h,锥孔气流量为45 L/h,内标为延胡索乙素。将12只大鼠随机分成iv组和ig组,每组6只,分别iv、ig HB0314溶液5、10 mg/kg,分别于给药前及给药后5、15、30、60、120、240、360、480、600、720、1 440 min取颈静脉血0.4 mL测定HB0314血药浓度,采用DAS 2.0软件计算药动学参数并计算绝对生物利用度。结果:HB0314质量浓度在1~1 000 ng/mL内线性关系良好(r=0.995 5),定量下限为1 ng/mL;日内、日间精密度、稳定性的RSD≤8.45%(n=5);回收率为68.21%~90.29%(RSD≤11.20%,n=5);基质效应为82.63%~106.90%(RSD≤6.75%,n=5)。iv与ig给药后,HB0314在大鼠体内的AUC_(0-24 h)分别为(270.267±21.164)、(252.755±26.169)μg·h/L(n=6),t1/2z分别为(8.722±2.266)、(11.877±4.517)h(n=6),绝对生物利用度为56.97%。结论:本方法快速、简便,可用于大鼠血浆中HB0314含量的测定。HB0314在大鼠体内具有较高的绝对生物利用度,提示后期剂型设计可考虑将其制成口服剂。
[Abstract]:Aim: to establish a method for the detection of anti-inflammatory compound HB0314 in rat plasma and to study its pharmacokinetics in rats. Methods: ultrahigh performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used. The column was Waters Acquity UPLC~ (TM) BEH C _ (18) column. The mobile phase consisted of 0.1% formic acid aqueous solution (A) methanol (B), gradient elution (0 ~ 2 min,). The flow rate was 0. 25 mL/min, the column temperature was 30 鈩,
本文编号:2397557
[Abstract]:Aim: to establish a method for the detection of anti-inflammatory compound HB0314 in rat plasma and to study its pharmacokinetics in rats. Methods: ultrahigh performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used. The column was Waters Acquity UPLC~ (TM) BEH C _ (18) column. The mobile phase consisted of 0.1% formic acid aqueous solution (A) methanol (B), gradient elution (0 ~ 2 min,). The flow rate was 0. 25 mL/min, the column temperature was 30 鈩,
本文编号:2397557
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