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find Keyword "病毒学" 4 results
  • Effective Treatment for Patients with Viral Relapse after Adefovir Withdrawl by the Combination of Lamivudine plus Adefovir

    目的 比较拉米夫定+阿德福韦酯联合治疗与阿德福韦酯单药治疗对阿德福韦酯停药后出现病毒学反弹而无基因型耐药变异患者的疗效及安全性。 方法 回顾研究2007年1月-2012年1月在传染科门诊就诊的67例阿德福韦酯治疗获得病毒学应答但停药后出现病毒学反弹的e抗原阳性慢性乙型肝炎患者,分别给予拉米夫定+阿德福韦酯联合治疗(联合组,n=35)和阿德福韦酯单药治疗(单药组,n=32)。 结果 治疗1年后,联合组(32例,85.7%)较单药组(21例,65.6%)有更多的患者重新获得了丙氨酸转氨酶复常(P=0.009),联合组34例(97.1%)乙型肝炎病毒DNA阴转,单药组22例(68.8%)阴转,两组差异有统计学意义(P=0.002);在血清学转换方面,联合组和单药组分别有4例(11.4%)和1例(3.1%)患者获得了e抗原的血清学转换。在治疗中所有患者均未发生任何严重不良反应。 结论 阿德福韦酯停药后出现病毒学反弹,选择拉米夫定与阿德福韦酯联合治疗可使患者重新获得较好的生化学和病毒学应答。

    Release date:2016-09-08 09:17 Export PDF Favorites Scan
  • 慢性丙型肝炎抗病毒治疗个体化疗程选择

    丙型肝炎病毒感染后大多数患者转为慢性感染,若不及时正确地进行治疗,相当比例患者会产生严重临床后果,丙型肝炎患者一旦确诊应积极行抗病毒治疗。根据病毒基因型及患者治疗过程中病毒学应答情况来预测疗效并相应调整治疗方案,成为目前抗病毒治疗的研究热点。

    Release date:2016-09-08 09:18 Export PDF Favorites Scan
  • Clinical Characteristics of Dynamic in the Treatment of HBeAg Postive Chronic Hepatitis B with IFN-α

    目的:观察α干扰素治疗HBeAg(+)慢性乙型肝炎患者过程中病毒学及血清学动态变化情况,通过早期疗效预测终末疗效。方法:观察144例HBeAg(+)慢性乙型肝炎患者经α干扰素治疗24WK及随访24WK 过程中HBV-DNA以及HBeAg变化情况.结果:经α干扰素治疗12、24、48WK时,HBV-DNA下降到可检测值以下病例数分别为32、32、31例;同期HBeAg发生血清转换病例数分别为16、17、21例。结论:干扰素治疗12WK时患者病毒学及血清学结果可早期预测终末疗效。

    Release date:2016-09-08 10:04 Export PDF Favorites Scan
  • Regime for cytomegalovirus retinitis based on aqueous virology and inflammatory cytokine determination

    ObjectiveTo observe the safety and efficacy of regime that based on aqueous cytomegalovirus-DNA (CMV-DNA) load and IL-8 determination for therapeutic monitoring and local treatment cessation of cytomegalovirus retinitis (CMVR) patients after allogeneic hematopoietic stem cell transplantation (HSCT).MethodsA prospective case series study. A total of 14 CMVR patients (22 eyes) after allogeneic HSCT diagnosed in Ophthalmology Department of Peking University People's Hospital between January 2016 and December 2018 were involved in this study. All patients were CMV-DNA seronegative at baseline and were treated with intravitreous injection of ganciclovir (IVG, 3 mg in 0.05 ml) twice per week for 4 times in the induction stage and once a week in the maintenance stage. Aqueous humor sample was collected during the first time of IVG every week. CMV-DNA and the level of IL-8 were measured by real time quantitative PCR and ELISA, respectively. During follow-up, negative CMV-DNA (<103/ml) or level of IL-8<30 pg/ml in aqueous sample was set as local treatment cessation. Then patients were followed every 2 weeks for at least 6 months. BCVA, intraocular pressure and fundus examination were taken for each visit. The BCVA examination was performed using the international standard visual acuity chart, which was converted into logMAR visual acuity. BCVA and intraocular pressure at the baseline and the last follow-up were compared by the Student t matching test.ResultsOf the 14 CMVR patients (22 eyes) after allogeneic HSCT, 8 patients (16 eyes) were bilateral, 6 patients (6 eyes) were unilateral. At the baseline, the mean logMAR BCVA was 0.814±0.563, the intraocular pressure was 17.2±7.8 mmHg (1 mmHg=0.133 kPa), the mean aqueous CMV-DNA load was (3.43±4.96)×105/ml, the mean level of IL-8 was 518±541 pg/ml. At cessation of local treatment, the median number of intravitreal injections was 5 times. Nine eyes showed negative CMV-DNA in aqueous humor, of which, 7 eyes showed negative IL-8 in aqueous. CMV-DNA could still be detected in 13 eyes, while IL-8 was negative. Only one eye’s retinal lesion was completely quiet. Six months after local treatment cessation, the mean logMAR BCVA was 0.812±0.691, the intraocular pressure was 14.8±5.4 mmHg; which was not significantly different from baseline (t=-0.107, 1.517; P=0.916, 0.137). Recurrence of CMVR happened in only 1 eye because of systemic EB virus infection. Retinal lesions progressively improved and became completely quiet in all the remaining 20 eyes. In 22 eyes, iatrogenic vitreous hemorrhage occurred due to low platelet count during treatment (<30×109/ml) in 4 eyes. When the treatment was terminated for 6 months, the fundus of hematoma absorption was clearly visible. At the time of CMVR diagnosis, there were 2 eyes (9%) with posterior subcapsular opacity, which may be caused by systemic glucocorticoid therapy after allogeneic HSCT.ConclusionAqueous CMV-DNA load and level of IL-8 could be used as quantitative variables for monitoring the therapeutic effect and determining time for local treatment cessation for CMVR after HSCT safely and efficiently.

    Release date:2020-02-18 09:28 Export PDF Favorites Scan
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