The paper was to study the inhibitory effect of recombinant freeze-drying chicken interferon against Newcastle disease virus (NDV) F48E10. Nine-day-old chicken embryos were inoculated with recombinant freeze-drying ...The paper was to study the inhibitory effect of recombinant freeze-drying chicken interferon against Newcastle disease virus (NDV) F48E10. Nine-day-old chicken embryos were inoculated with recombinant freeze-drying chicken interferon via allaotoic sack, while 10-day-old chicken embryos were inoculated with NDV F48E10, and in vivo protective efficacy of interferon on chichen embryos was studied. The results showed that the recombinant freeze-drying chicken interferon at the dose of 1.28 mg/embryo reached the protection ratio of 90% on chicken embryo infected by F48E10.展开更多
目的检测重组人白细胞介素-10(recombinant human interleukiu-10,rhIL-10)作用后皮肤移植家兔血清中IL-10及其抗体的变化,探讨外源性hIL-10诱生IL-10增强抑制效应和外源性hIL-10有无免疫原性,为rhIL-10的应用提供实验依据。方法家兔分...目的检测重组人白细胞介素-10(recombinant human interleukiu-10,rhIL-10)作用后皮肤移植家兔血清中IL-10及其抗体的变化,探讨外源性hIL-10诱生IL-10增强抑制效应和外源性hIL-10有无免疫原性,为rhIL-10的应用提供实验依据。方法家兔分为6组:①组rhIL-10低剂量,②组rhIL-10高剂量,③组环孢菌素(CsA)低剂量,④组CsA高剂量,⑤组rhIL-10+CsA低剂量联合,⑥组生理盐水组。移植术前1d开始用药,连续用药10d,肌肉注射。术前1d、术后1d、4d、7d、14d、21d、28d分别取外周血,分离血清,以ELISA方法检测血清中IL-10及IL-10抗体水平。结果①移植家兔血清IL-10检测,术后各组结果较术前均有升高,在术后7d达到高峰,术后4d、术后7d rhIL-10低剂量及高剂量组IL-10水平高于其余各组(P<0.05)。CsA低剂量及高剂量组IL-10水平低于rhIL-10组及联合组(P<0.05)。②移植家兔血清抗IL-10抗体检测,术后各组检测结果较术前均无明显升高(P>0.05),与抗体阳性对照比较有显著差异(P<0.05)。结论 rhIL-10抗家兔皮肤移植反应中,家兔血清IL-10含量在皮肤移植后明显升高,表明外源IL-10诱导内源性IL-10分泌,从而增强抑制排斥反应;外源IL-10注射后家兔血清中没有检测出特异性抗体,外源性rhIL-10进入机体没有免疫原性。展开更多
文摘The paper was to study the inhibitory effect of recombinant freeze-drying chicken interferon against Newcastle disease virus (NDV) F48E10. Nine-day-old chicken embryos were inoculated with recombinant freeze-drying chicken interferon via allaotoic sack, while 10-day-old chicken embryos were inoculated with NDV F48E10, and in vivo protective efficacy of interferon on chichen embryos was studied. The results showed that the recombinant freeze-drying chicken interferon at the dose of 1.28 mg/embryo reached the protection ratio of 90% on chicken embryo infected by F48E10.
文摘目的检测重组人白细胞介素-10(recombinant human interleukiu-10,rhIL-10)作用后皮肤移植家兔血清中IL-10及其抗体的变化,探讨外源性hIL-10诱生IL-10增强抑制效应和外源性hIL-10有无免疫原性,为rhIL-10的应用提供实验依据。方法家兔分为6组:①组rhIL-10低剂量,②组rhIL-10高剂量,③组环孢菌素(CsA)低剂量,④组CsA高剂量,⑤组rhIL-10+CsA低剂量联合,⑥组生理盐水组。移植术前1d开始用药,连续用药10d,肌肉注射。术前1d、术后1d、4d、7d、14d、21d、28d分别取外周血,分离血清,以ELISA方法检测血清中IL-10及IL-10抗体水平。结果①移植家兔血清IL-10检测,术后各组结果较术前均有升高,在术后7d达到高峰,术后4d、术后7d rhIL-10低剂量及高剂量组IL-10水平高于其余各组(P<0.05)。CsA低剂量及高剂量组IL-10水平低于rhIL-10组及联合组(P<0.05)。②移植家兔血清抗IL-10抗体检测,术后各组检测结果较术前均无明显升高(P>0.05),与抗体阳性对照比较有显著差异(P<0.05)。结论 rhIL-10抗家兔皮肤移植反应中,家兔血清IL-10含量在皮肤移植后明显升高,表明外源IL-10诱导内源性IL-10分泌,从而增强抑制排斥反应;外源IL-10注射后家兔血清中没有检测出特异性抗体,外源性rhIL-10进入机体没有免疫原性。