The inhibitory effect of astilbin on transplant arteriosclerosis in murine model of thoracic aorta transplantation was examined. Model of rat thoracic aorta transplantation was established. Ninety rats were divided in...The inhibitory effect of astilbin on transplant arteriosclerosis in murine model of thoracic aorta transplantation was examined. Model of rat thoracic aorta transplantation was established. Ninety rats were divided into three groups. In isograft group, the thoracic aorta of Brown Norway （BN） rat was anastomosed with the abdominal aorta of another BN rat. In allograft group, the thoracic aorta of BN rat was anastomosed with the abdominal aorta of Lewis rat. In astilbin group, the rats receiving allo-transplantation were given astilbin 5 mg/kg per day for a time of 28 days. The donor thoracic aorta and the recipient abdominal aorta were anastomosed by means of a polyethylene can- nula （inner diameter： 1.5 mm, length： 3 mm length）. The grafts were histologically examined for structural changes. The areas of arterial lumen and endatrium were calculated. Our results showed that, in the allograft group, 28 days after allografting, conspicuous proliferation of smooth muscles and infiltration with a great number of inflammatory cells were found in the tunica intima and tunica media. Astilbin significantly inhibited the proliferation of smooth muscles and ameliorated the infiltration of inflammatory cells thereyby prevent against the development of transplant arteriosclerosis. It is concluded that asltilbin can effectively prevent the development of arteriosclerosis in allotransplant by inhibiting the proliferation of smooth muscles and inhibit the proliferation of smooth muscles in tunica of intima and media and reducing infiltration of the inflammatory cells.展开更多
目的根据MRI测量正常国人颈椎椎间隙数据,研制符合国人解剖学特征的同种异体骨颈椎椎间融合骨垫。方法通过MRI测量100例C2,3至C6,7每个椎间隙的前缘、中点、后缘高度值及横径宽度值、矢状径长度值,其中男性有50人(20~55岁,平均年龄38.7...目的根据MRI测量正常国人颈椎椎间隙数据,研制符合国人解剖学特征的同种异体骨颈椎椎间融合骨垫。方法通过MRI测量100例C2,3至C6,7每个椎间隙的前缘、中点、后缘高度值及横径宽度值、矢状径长度值,其中男性有50人(20~55岁,平均年龄38.7岁),女性有50人(20~55岁,平均年龄36.1岁)。并根据该数据设计同种异体骨颈椎椎间融合骨垫。结果同节段颈椎椎间隙正中矢状面后缘高度<前缘高度<中间高度(P<0.05),椎间隙横径大于矢状径(P<0.05),同节段同部位的测量值,男性组大于女性组(P<0.05);同种异体骨颈椎椎间融合骨垫设计为前缘高度为6.0、7.0、8.0、9.0 mm 4个型号的楔状,其表面具有倒齿结构,中央有脱钙骨基质(DBM)置入孔,用于置入DBM粉末。结论依据MRI测量的颈椎椎间隙数据设计的同种异体骨颈椎融合骨垫符合国人解剖学要求。展开更多
A complex process including both the innate and acquired immune responses results in allograft rejection. Some chemokine receptors and their ligands play essential roles not only for leukocyte migration into the graft...A complex process including both the innate and acquired immune responses results in allograft rejection. Some chemokine receptors and their ligands play essential roles not only for leukocyte migration into the graft but also in facilitating dendritic and T cell trafficking between lymph nodes and the transplant in the early and late stage of the allogeneic response. This review focuses on the impact of these chemoattractant proteins on transplant outcome and novel diagnostic and therapeutic approaches for antirejection therapy based on targeting of chemokine receptors and/or their ligands.展开更多
基金supported by a grant from the National Natural Sciences Foundation of China (No.30500656)
文摘The inhibitory effect of astilbin on transplant arteriosclerosis in murine model of thoracic aorta transplantation was examined. Model of rat thoracic aorta transplantation was established. Ninety rats were divided into three groups. In isograft group, the thoracic aorta of Brown Norway （BN） rat was anastomosed with the abdominal aorta of another BN rat. In allograft group, the thoracic aorta of BN rat was anastomosed with the abdominal aorta of Lewis rat. In astilbin group, the rats receiving allo-transplantation were given astilbin 5 mg/kg per day for a time of 28 days. The donor thoracic aorta and the recipient abdominal aorta were anastomosed by means of a polyethylene can- nula （inner diameter： 1.5 mm, length： 3 mm length）. The grafts were histologically examined for structural changes. The areas of arterial lumen and endatrium were calculated. Our results showed that, in the allograft group, 28 days after allografting, conspicuous proliferation of smooth muscles and infiltration with a great number of inflammatory cells were found in the tunica intima and tunica media. Astilbin significantly inhibited the proliferation of smooth muscles and ameliorated the infiltration of inflammatory cells thereyby prevent against the development of transplant arteriosclerosis. It is concluded that asltilbin can effectively prevent the development of arteriosclerosis in allotransplant by inhibiting the proliferation of smooth muscles and inhibit the proliferation of smooth muscles in tunica of intima and media and reducing infiltration of the inflammatory cells.
文摘目的根据MRI测量正常国人颈椎椎间隙数据,研制符合国人解剖学特征的同种异体骨颈椎椎间融合骨垫。方法通过MRI测量100例C2,3至C6,7每个椎间隙的前缘、中点、后缘高度值及横径宽度值、矢状径长度值,其中男性有50人(20~55岁,平均年龄38.7岁),女性有50人(20~55岁,平均年龄36.1岁)。并根据该数据设计同种异体骨颈椎椎间融合骨垫。结果同节段颈椎椎间隙正中矢状面后缘高度<前缘高度<中间高度(P<0.05),椎间隙横径大于矢状径(P<0.05),同节段同部位的测量值,男性组大于女性组(P<0.05);同种异体骨颈椎椎间融合骨垫设计为前缘高度为6.0、7.0、8.0、9.0 mm 4个型号的楔状,其表面具有倒齿结构,中央有脱钙骨基质(DBM)置入孔,用于置入DBM粉末。结论依据MRI测量的颈椎椎间隙数据设计的同种异体骨颈椎融合骨垫符合国人解剖学要求。
文摘A complex process including both the innate and acquired immune responses results in allograft rejection. Some chemokine receptors and their ligands play essential roles not only for leukocyte migration into the graft but also in facilitating dendritic and T cell trafficking between lymph nodes and the transplant in the early and late stage of the allogeneic response. This review focuses on the impact of these chemoattractant proteins on transplant outcome and novel diagnostic and therapeutic approaches for antirejection therapy based on targeting of chemokine receptors and/or their ligands.
