Eczema is a kind of very common dermatopathy. The cases with a long course of illness and hard to be cured are termed as stubborn eczema. We have obtained good results in its treatment since 1995 with the Chu Shi Tan...Eczema is a kind of very common dermatopathy. The cases with a long course of illness and hard to be cured are termed as stubborn eczema. We have obtained good results in its treatment since 1995 with the Chu Shi Tang (除湿汤Dampness-Clearing Decoction) for oral intake and the Fu Fang Ku Shen Xi Ye (复方苦参洗液) for topical application. The following is a clinical report for treating 56 patients with stubborn eczema.展开更多
Background:Intratympanic administration of gadolinium chelate allows for a better visualization of endolymphatic hydrops(EH)using MRI than intravenous injection and was recently further improved to facilitate high-qua...Background:Intratympanic administration of gadolinium chelate allows for a better visualization of endolymphatic hydrops(EH)using MRI than intravenous injection and was recently further improved to facilitate high-quality imaging of EH in 7 min.The aim of the present study was to simplify the intratympanic administration protocol by mixing gadolinium chelate with therapeutic dexamethasone and to evaluate the effects of this mixture on the visualization of EH in MRI.Materials and methods:In an in vitro study,the potential impact of gadolinium-diethylenetriamine pentaacetic acid(Gd-DTPA)on the stability of dexamethasone was evaluated by analyzing dynamic changes in dexamethasone with high-performance liquid chromatography(HPLC)after mixing with GdDTPA.Ten patients with definite Meniere's disease(MD)were recruited to study the potential interference of dexamethasone on MRI visualization of EH,and 49 patients with MD were recruited to evaluate the effect of intratympanic injection of Gd-DTPA mixed with dexamethasone on MRI of EH using a 3T MR machine and a novel heavily T2-weighted 3-dimensional fluid-attenuated inversion recovery reconstructed using a magnitude plus zero-filled interpolation(hT2FLAIR-MZFI)sequence.Results:The retention times and peak area of dexamethasone in HPLC were not modified by the addition of Gd-DTPA.EH grading in the cochlea and vestibule was not influenced in any ear by intratympanic injection of dexamethasone.Excellent inner ear images were obtained from all patients,and EHs with various grades were displayed.There were significant correlations between diagnosis and cochlear EH(p<0.01,Spearman's Rho),between diagnosis and vestibular EH(p<0.01,Spearman's Rho),and between cochlear and vestibular EH(p<0.01,Spearman's Rho).The distribution of Gd-DTPA plus dexamethasone negatively correlated with the grade of vestibular EH.Injury of the endolymph-perilymph barrier was detected in one cochlea and three vestibules of 59 inner ears with MD.Conclusions:Intratympanic administration of Gd-DTPA plus dexamethasone yielded high-quality MRI images of EH in patients with MD using a novel 7-min protocol and simplified the clinical application.Intratympanic administration of Gd-DTPA plus dexamethasone might be used to test its therapeutic effect in future work.展开更多
AIMTo compare the effect of topically administered and subconjunctivally injected bevacizumab on experimental corneal neovascularization in rats for two weeks after treatment.
宫颈癌的发生与人乳头瘤病毒(HPV)感染密切相关。治疗HPV感染可有效预防宫颈癌。洛匹那韦(LPV)是Food and Drug Administration(FDA)批准的抗艾滋病病毒的治疗药物,研究发现洛匹那韦具有抗HPV病毒的活性。本工作旨在制备一种负载LPV的...宫颈癌的发生与人乳头瘤病毒(HPV)感染密切相关。治疗HPV感染可有效预防宫颈癌。洛匹那韦(LPV)是Food and Drug Administration(FDA)批准的抗艾滋病病毒的治疗药物,研究发现洛匹那韦具有抗HPV病毒的活性。本工作旨在制备一种负载LPV的纳米胶束复合水凝胶载药系统,探究其通过阴道黏膜局部给药的性能。采用两亲性聚合物维生素E聚乙二醇琥珀酸酯(TPGS)和助渗透剂牛磺脱氧胆酸钠(STDC)自组装制备混合载药胶束(TPGS-STDC/LPV),混合胶束分散在温敏凝胶中形成载药纳米胶束复合温敏水凝胶(NMCH)。对TPGS-STDC/LPV的粒径、ZETA电位、形貌、包封率、载药量和释药等进行了检测,还测试了NMCH的黏膜粘附性、药物释放、透皮渗透和抗病毒活性等。实验结果表明,TPGS-STDC/LPV具有高药物包封率、高载药量,累积释放率达(96.82±2.93)%(pH=4.5,72 h),表现出酸响应释放性能;复合水凝胶具有适宜人体的温敏特性,对阴道上皮黏膜具有优异的粘附性,所制备的NMCH的LPV渗透率最好,为(54.05±2.74)%,约为游离LPV的7.4倍;NMCH具有显著的抗HPV病毒活性。该体系适合用于阴道局部给药。展开更多
文摘Eczema is a kind of very common dermatopathy. The cases with a long course of illness and hard to be cured are termed as stubborn eczema. We have obtained good results in its treatment since 1995 with the Chu Shi Tang (除湿汤Dampness-Clearing Decoction) for oral intake and the Fu Fang Ku Shen Xi Ye (复方苦参洗液) for topical application. The following is a clinical report for treating 56 patients with stubborn eczema.
基金supported partially by the National Grant for Outstanding Young Researchers (No．39525024) the Major State Basic Development Program (No．G1999054204)．
基金supported by the National Natural Science Foundation of China (81771006)
文摘Background:Intratympanic administration of gadolinium chelate allows for a better visualization of endolymphatic hydrops(EH)using MRI than intravenous injection and was recently further improved to facilitate high-quality imaging of EH in 7 min.The aim of the present study was to simplify the intratympanic administration protocol by mixing gadolinium chelate with therapeutic dexamethasone and to evaluate the effects of this mixture on the visualization of EH in MRI.Materials and methods:In an in vitro study,the potential impact of gadolinium-diethylenetriamine pentaacetic acid(Gd-DTPA)on the stability of dexamethasone was evaluated by analyzing dynamic changes in dexamethasone with high-performance liquid chromatography(HPLC)after mixing with GdDTPA.Ten patients with definite Meniere's disease(MD)were recruited to study the potential interference of dexamethasone on MRI visualization of EH,and 49 patients with MD were recruited to evaluate the effect of intratympanic injection of Gd-DTPA mixed with dexamethasone on MRI of EH using a 3T MR machine and a novel heavily T2-weighted 3-dimensional fluid-attenuated inversion recovery reconstructed using a magnitude plus zero-filled interpolation(hT2FLAIR-MZFI)sequence.Results:The retention times and peak area of dexamethasone in HPLC were not modified by the addition of Gd-DTPA.EH grading in the cochlea and vestibule was not influenced in any ear by intratympanic injection of dexamethasone.Excellent inner ear images were obtained from all patients,and EHs with various grades were displayed.There were significant correlations between diagnosis and cochlear EH(p<0.01,Spearman's Rho),between diagnosis and vestibular EH(p<0.01,Spearman's Rho),and between cochlear and vestibular EH(p<0.01,Spearman's Rho).The distribution of Gd-DTPA plus dexamethasone negatively correlated with the grade of vestibular EH.Injury of the endolymph-perilymph barrier was detected in one cochlea and three vestibules of 59 inner ears with MD.Conclusions:Intratympanic administration of Gd-DTPA plus dexamethasone yielded high-quality MRI images of EH in patients with MD using a novel 7-min protocol and simplified the clinical application.Intratympanic administration of Gd-DTPA plus dexamethasone might be used to test its therapeutic effect in future work.
文摘AIMTo compare the effect of topically administered and subconjunctivally injected bevacizumab on experimental corneal neovascularization in rats for two weeks after treatment.
文摘宫颈癌的发生与人乳头瘤病毒(HPV)感染密切相关。治疗HPV感染可有效预防宫颈癌。洛匹那韦(LPV)是Food and Drug Administration(FDA)批准的抗艾滋病病毒的治疗药物,研究发现洛匹那韦具有抗HPV病毒的活性。本工作旨在制备一种负载LPV的纳米胶束复合水凝胶载药系统,探究其通过阴道黏膜局部给药的性能。采用两亲性聚合物维生素E聚乙二醇琥珀酸酯(TPGS)和助渗透剂牛磺脱氧胆酸钠(STDC)自组装制备混合载药胶束(TPGS-STDC/LPV),混合胶束分散在温敏凝胶中形成载药纳米胶束复合温敏水凝胶(NMCH)。对TPGS-STDC/LPV的粒径、ZETA电位、形貌、包封率、载药量和释药等进行了检测,还测试了NMCH的黏膜粘附性、药物释放、透皮渗透和抗病毒活性等。实验结果表明,TPGS-STDC/LPV具有高药物包封率、高载药量,累积释放率达(96.82±2.93)%(pH=4.5,72 h),表现出酸响应释放性能;复合水凝胶具有适宜人体的温敏特性,对阴道上皮黏膜具有优异的粘附性,所制备的NMCH的LPV渗透率最好,为(54.05±2.74)%,约为游离LPV的7.4倍;NMCH具有显著的抗HPV病毒活性。该体系适合用于阴道局部给药。
