TAC, tacrolimus

  • 文章类型: Journal Article
    未经证实:免疫性血小板减少症是一种以血小板计数减少为特征的自身免疫性疾病。近年来,在随机对照试验(RCTs)中研究了新的治疗方案.我们旨在比较新诊断的成人原发性免疫性血小板减少症不同治疗方法的疗效和安全性。
    UNASSIGNED:我们对新诊断的原发性免疫性血小板减少症的治疗RCTs进行了系统评价和网络荟萃分析。PubMed,Embase,Cochrane中央受控试验登记册,和ClinicalTrials.gov数据库在2022年4月31日之前进行了搜索。主要结果是6个月的持续反应和早期反应。次要结果是3级或更高的不良事件。本研究在PROSPERO(CRD42022296179)注册。
    未经评估:本研究包括18项随机对照试验(n=1944)。成对荟萃分析显示,在含地塞米松的双联组中,早期反应的患者百分比高于地塞米松组(79.7%vs68.7%,比值比[OR]1.82,95%CI1.10-3.02)。持续反应的差异更大(60.5%vs37.4%,OR2.57,95%CI1.95-3.40)。网络荟萃分析显示,地塞米松联合重组人血小板生成素在早期反应中排名第一,其次是地塞米松加奥司他韦或他克莫司。利妥昔单抗联合泼尼松龙达到了最高的持续反应,其次是地塞米松加全反式维甲酸或利妥昔单抗。利妥昔单抗加地塞米松显示15.3%的3级或更高的不良事件,其次是prednis(ol)1(4.8%)和全反式维甲酸加地塞米松(4.7%)。
    UNASSIGNED:我们的研究结果表明,与单一治疗地塞米松或prednis(ol)1相比,联合治疗方案的早期和持续反应较好.rhTPO加地塞米松在早期反应中排名第一,而利妥昔单抗加皮质类固醇获得了最好的持续反应,但有更多的不良事件。加入奥司他韦,全反式维甲酸或他克莫司对地塞米松达到同样令人鼓舞的持续反应,在不影响安全的情况下。虽然这个网络荟萃分析比较了所有最新的治疗方案,有必要在这些策略之间进行更多的头对头RCT和更大的样本量进行直接比较.
    联合国:国家自然科学基金委员会,国家自然科学基金重大研究计划,山东省自然科学基金和山东省青年泰山学者基金会。
    UNASSIGNED: Immune thrombocytopenia is an autoimmune disease characterised by decreased platelet count. In recent years, novel therapeutic regimens have been investigated in randomised controlled trials (RCTs). We aimed to compare the efficacy and safety of different treatments in newly diagnosed adult primary immune thrombocytopenia.
    UNASSIGNED: We did a systematic review and network meta-analysis of RCTs involving treatments for newly diagnosed primary immune thrombocytopenia. PubMed, Embase, the Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov databases were searched up to April 31, 2022. The primary outcomes were 6-month sustained response and early response. Secondary outcome was grade 3 or higher adverse events. This study is registered with PROSPERO (CRD42022296179).
    UNASSIGNED: Eighteen RCTs (n = 1944) were included in this study. Pairwise meta-analysis showed that the percentage of patients achieving early response was higher in the dexamethasone-containing doublet group than in the dexamethasone group (79.7% vs 68.7%, odds ratio [OR] 1.82, 95% CI 1.10-3.02). The difference was more profound for sustained response (60.5% vs 37.4%, OR 2.57, 95% CI 1.95-3.40). Network meta-analysis showed that dexamethasone plus recombinant human thrombopoietin ranked first for early response, followed by dexamethasone plus oseltamivir or tacrolimus. Rituximab plus prednisolone achieved highest sustained response, followed by dexamethasone plus all-trans retinoic acid or rituximab. Rituximab plus dexamethasone showed 15.3% of grade 3 or higher adverse events, followed by prednis(ol)one (4.8%) and all-trans retinoic acid plus dexamethasone (4.7%).
    UNASSIGNED: Our findings suggested that compared with monotherapy dexamethasone or prednis(ol)one, the combined regimens had better early and sustained responses. rhTPO plus dexamethasone ranked top in early response, while rituximab plus corticosteroids obtained the best sustained response, but with more adverse events. Adding oseltamivir, all-trans retinoic acid or tacrolimus to dexamethasone reached equally encouraging sustained response, without compromising safety profile. Although this network meta-analysis compared all the therapeutic regimens up to date, more head-to-head RCTs with larger sample size are warranted to make direct comparison among these strategies.
    UNASSIGNED: National Natural Science Foundation of China, Major Research Plan of National Natural Science Foundation of China, Shandong Provincial Natural Science Foundation and Young Taishan Scholar Foundation of Shandong Province.
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  • 文章类型: Journal Article
    肝移植(LT)是治疗终末期肝衰竭和肝细胞癌的标准。多年来,免疫抑制方案有所改善,从而提高移植物和患者的存活率。目前,免疫抑制剂的副作用对LT术后生活质量和长期结局构成重大威胁.个性化免疫抑制的作用是在最佳免疫抑制和最小副作用之间达到微妙的平衡。今天,LT中的免疫抑制与其说是科学,不如说是一门艺术。没有经过验证的过度免疫抑制和免疫抑制的标志物,只有少数药物有治疗药物监测,免疫抑制方案因中心而异.免疫抑制剂大致分为生物制剂和药理学制剂。大多数方案使用具有不同作用模式的多种药物来减少剂量并使毒性最小化。钙调磷酸酶抑制剂(CNI)相关毒性通过抗体诱导或使用mTOR抑制剂/抗代谢物作为CNI保留或CNI最小化策略来降低。肝移植后免疫抑制在前三个月处于强化阶段,此时同种异体反应性较高,随后是实施免疫抑制最小化方案的维持阶段。随着时间的推移,一些患者达到了“耐受性”,“定义为成功停止免疫抑制,具有良好的移植物功能且没有排斥迹象。使用具有耐受原性潜力的免疫细胞的基于细胞的治疗是未来的,并且可能允许完全停用免疫抑制剂。
    Liver transplantation (LT) is the standard of care for end-stage liver failure and hepatocellular carcinoma. Over the years, immunosuppression regimens have improved, resulting in enhanced graft and patient survival. At present, the side effects of immunosuppressive agents are a significant threat to post-LT quality of life and long-term outcome. The role of personalized immunosuppression is to reach a delicate balance between optimal immunosuppression and minimal side effects. Today, immunosuppression in LT is more of an art than a science. There are no validated markers for overimmunosuppression and underimmunosuppression, only a few drugs have therapeutic drug monitoring and immunosuppression regimens vary from center to center. The immunosuppressive agents are broadly classified into biological agents and pharmacological agents. Most regimens use multiple agents with different modes of action to reduce the dosage and minimize the toxicities. The calcineurin inhibitor (CNI)-related toxicities are reduced by antibody induction or using mTOR inhibitor/antimetabolites as CNI sparing or CNI minimization strategies. Post-liver transplant immunosuppression has an intensive phase in the first three months when alloreactivity is high, followed by a maintenance phase when immunosuppression minimization protocols are implemented. Over time some patients achieve \"tolerance,\" defined as the successful stopping of immunosuppression with good graft function and no indication of rejection. Cell-based therapy using immune cells with tolerogenic potential is the future and may permit complete withdrawal of immunosuppressive agents.
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  • 文章类型: Case Reports
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  • 文章类型: Journal Article
    银屑病关节炎(PsA)是一种复杂的银屑病合并症,表现为银屑病皮肤和关节炎关节,和定制特定的治疗策略,以同时将不同的药物递送到PsA的不同作用部位仍然具有挑战性。我们开发了一种基于需求的分层溶解微针(MN)系统,在不同的MN层中加载免疫抑制剂他克莫司(TAC)和抗炎双氯芬酸(DIC),即,TD-MN,旨在将TAC和DIC专门输送到皮肤和关节腔,同时减轻PsA的银屑病皮肤和关节炎关节病变。体外和体内皮肤渗透表明,中间层在皮肤内保留了100μm的TAC,而尖端层将高达300μm的DIC输送到关节腔。TD-MN不仅有效地降低了银屑病面积和严重程度指数评分,恢复了咪喹莫特诱导的银屑病表皮增厚,而且通过减少关节肿胀,甚至比注射DIC更好地减轻了角叉菜胶/高岭土诱导的关节炎。肌肉萎缩,和软骨破坏。重要的是,TD-MN对银屑病和关节炎大鼠血清TNF-α和IL-17A均有明显的抑制作用。结果支持,这种方法代表了一种有希望的替代方法,以多种药物治疗合并症,为满足PsA治疗的要求提供了一种方便有效的策略。
    Psoriatic arthritis (PsA) is a complicated psoriasis comorbidity with manifestations of psoriatic skin and arthritic joints, and tailoring specific treatment strategies for simultaneously delivering different drugs to different action sites in PsA remains challenging. We developed a need-based layered dissolving microneedle (MN) system loading immunosuppressant tacrolimus (TAC) and anti-inflammatory diclofenac (DIC) in different layers of MNs, i.e., TD-MN, which aims to specifically deliver TAC and DIC to skin and articular cavity, achieving simultaneous alleviation of psoriatic skin and arthritic joint lesions in PsA. In vitro and in vivo skin permeation demonstrated that the inter-layer retained TAC within the skin of ∼100 μm, while the tip-layer delivered DIC up to ∼300 μm into the articular cavity. TD-MN not only efficiently decreased the psoriasis area and severity index scores and recovered the thickened epidermis of imiquimod-induced psoriasis but also alleviated carrageenan/kaolin-induced arthritis even better than DIC injection through reducing joint swelling, muscle atrophy, and cartilage destruction. Importantly, TD-MN significantly inhibited the serum TNF-α and IL-17A in psoriatic and arthritic rats. The results support that this approach represents a promising alternative to multi-administration of different drugs for comorbidity, providing a convenient and effective strategy for meeting the requirements of PsA treatment.
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  • 文章类型: Journal Article
    UNASSIGNED: Liver transplantation (LT) recipients such as all organ transplant recipients, have a risk of developing de novo malignancies owing to prolonged immunosuppression. However, there is limited data on this after living donor liver transplantation (LDLT), wherein immunosuppression levels are less than in deceased donor transplantation. We aim to describe experience of de novo malignancies from a predominantly LDLT center.
    UNASSIGNED: A total of 2100 adults (age >18 years) who underwent LT between January 2006 and December 2017 were retrospectively analyzed from a prospectively collected database. The data were analyzed up to June 2019. Data are shown as number, percentage, mean ± standard deviation, and median (interquartile range).
    UNASSIGNED: Of 2100 patients who underwent LDLT, 21 (1%) patients developed de novo malignancy after transplantation. The de novo malignancy cohort comprised 20 males and 1 female, aged 50 ± 8.8 years. The distribution of de novo malignancies was as follows: 7 oropharyngeal (carcinoma of buccal and oral mucosa), 4 lung, 2 squamous cell carcinoma of skin, 2 lymphoma, 1 each of brain, colonic, gastric; ovary, pancreatic, and prostate. These malignancies were diagnosed at a median follow-up of 42 months (32-73) after LT. Over a median follow-up of 38 months (10-56) after the diagnosis of de novo malignancy, 6 patients (28.5%) died. Patients with de novo malignancy had a higher follow-up after LDLT, 94.3 ± 32.9 versus 62.5 ± 41.8 months, P = 0.000. Patients with alcohol as etiology for LT had higher trend of de novo malignancies (33.3% versus 26.4%), P = 0.46.
    UNASSIGNED: The incidence of de novo malignancy was 1% at a median follow-up of 42 (32-73) months. De novo malignancies following LDLT, although uncommon, are associated with significant mortality. A careful screening protocol should be followed after transplantation for early detection of de novo malignancies.
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  • 文章类型: Journal Article
    用较新的直接作用抗病毒药物(DAA)治疗丙型肝炎病毒(HCV),并在大多数患者中导致持续的病毒反应(SVR),并且SVR已被证明与肝硬化的逆转有关。DAA改善的SVR率和安全性已导致等待肝移植(LT)的失代偿性肝硬化患者的治疗。DAA在失代偿性HCV患者中的一些临床试验最近证明SVR率超过80%,这些都有显著的改进,Child-Pugh-Turcotte评分/或部分患者终末期肝病评分模型。此外,研究表明,HCVRNA在治疗2-4周后变为阴性,而那些在HCVRNA阴性后移植的人在移植后HCV复发的风险将非常低。一些患者可能已经达到“不归点”,并可能随着时间的推移而继续恶化分解。为了避免恶化的风险,如果这些患者发展为复发性HCV感染,则在LT后还有另外一种治疗选择.目前,没有指南来选择在LT之前从治疗中受益的患者,而不是在移植手术后更好地治疗的患者。本文讨论了这种选择的可能方法。
    Treatment of hepatitis C virus (HCV) with newer directly acting antivirals (DAAs) and lead to sustained viral response (SVR) in majority of patients and SVR has been documented to be associated with reversal of liver cirrhosis. The improved SVR rates and safety profiles of DAAs have led to the treatment of patients with decompensated cirrhosis awaiting liver transplantation (LT). Several clinical trials of DAAs in decompensated HCV patients have recently demonstrated SVR rates above 80%, which have been associated with significant improvements, in the Child-Pugh-Turcotte scores/or model for end-stage liver disease scores in a proportion of patients. Moreover, it has been shown that HCV RNA becomes negative after 2-4 weeks of treatment, and those who are transplanted after becoming HCV RNA negative will be have very low the risk of HCV recurrence after transplantation. Some of the patients may have reached the \"point of no return\" and may proceed to worsening of decomposition over time. To avoid the risk of worsening, there is an additional option of treating these patients after LT should they develop recurrent HCV infection. Currently there are no guidelines as to select patients who would benefit from treatment prior to LT as opposed to those who will be better off being treated after the transplant surgery. The article discusses a possible approach for such selection.
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  • 文章类型: Journal Article
    背景:肝移植(LT)的利用受到合适器官的可用性的限制。本研究旨在评估供体风险指数(DRI)和其他供体特征对纤维化进展的影响。移植,和丙型肝炎病毒(HCV)感染的LT受者的患者生存率。
    方法:纳入至少2例LT方案后肝活检标本的HCV感染LT受者。使用Cox比例风险回归分析计算双变量分析的风险比。
    结果:在312个收件人中,26.6%的患者在58.5个月的中位随访时间内死亡(95%CI:46.5-67.3)。14例患者接受了再次移植。平均移植失败时间为84.3个月,中位随访时间:59个月,95%CI(48.2,68.3)。DRI>1.5与患者和移植物存活显著相关(P=0.04)。在104例接受组织学分析的个体中,67.3%进展到≥F2。在多变量分析中,纤维化进展的重要供体特异性预测因子为:供体年龄>50岁,DRI>1.7.
    结论:(1)HCV感染LT受体的纤维化进展与供体特征密切相关,特别是供体年龄和DRI。(2)DRI,对捐赠者质量的客观衡量,似乎与组织学进展率和总体患者/移植物存活率均相关。
    BACKGROUND: The utilization of liver transplantation (LT) is limited by the availability of suitable organs. This study aimed to assess the impact of the donor risk index (DRI) and other donor characteristics on fibrosis progression, graft, and patient survival in hepatitis C virus (HCV)-infected LT recipients.
    METHODS: HCV-infected LT recipients who had at least 2 post-LT protocol liver biopsy specimens available were included. Hazard ratio for bivariate analysis was computed using Cox proportional hazard regression analysis.
    RESULTS: Of 312 recipients, 26.6% died over a median follow-up of 58.5 months (95% CI: 46.5-67.3). Fourteen patients underwent re-transplantation. Mean time to graft failure was 84.3 months, median follow-up: 59 months, 95% CI (48.2, 68.3). DRI >1.5 was significantly associated with patient and graft survival (P = 0.04). Of the subset of 104 individuals who underwent histological analysis, 67.3% progressed to ≥F2. On multivariate analysis, significant donor-specific predictors of fibrosis progression were: donor age >50 years and DRI >1.7.
    CONCLUSIONS: (1) Fibrosis progression in HCV-infected LT recipients is strongly associated with donor characteristics, specifically donor age and DRI. (2) DRI, an objective measure of donor quality, appears to correlate both with rate of histological progression and overall patient/graft survival.
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  • 文章类型: Journal Article
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