relapse

复发
  • 文章类型: Journal Article
    BACKGROUND: Pregnancy is a common consideration for people with multiple sclerosis (pwMS); MS onset is typically between 20 and 45 years of age, during potential child-bearing years. Pregnancy and postpartum care are a significant factor influencing disease-modifying therapy (DMT) selection for many pwMS. To date, few DMTs are considered safe to continue during pregnancy and real-world treatment patterns before, during, and after pregnancy remain uncharacterized. Evolving guidance is needed regarding how to optimize management of the pregnancy and postpartum periods considering the changing DMT landscape. This analysis in two large claims databases describes DMT utilization for the treatment of MS before, during, and after pregnancy and relapse patterns during pregnancy and postpartum.
    METHODS: In this retrospective, observational study, the US MarketScan Commercial and Medicaid claims database was assessed for female patients aged 18-55 years with ≥1 insurance claim submitted under the diagnosis code of MS from 01 January 2016-30 April 2021 and continuous enrollment eligibility from ≥6 months prior to pregnancy date (preconception) through 6 months of follow-up following delivery (postpartum period). Comorbid conditions were examined preconception and postpartum, including anxiety and depression. Moderate/severe relapse was defined as MS-related hospitalization, or an outpatient visit and one claim within 7 days of the visit with steroids or total plasma exchange.
    RESULTS: A total of 944 patients (mean [standard deviation] age, 32.4 [5.0] years) were eligible; 688 (73%) were commercially insured and 256 (27%) received Medicaid. Compared with commercially-insured patients, use of DMTs was lower among Medicaid patients at 6 months preconception (25.4% vs 40.4%; p < 0.001), with similar patterns observed both during pregnancy and postpartum. Overall, prevalence of DMT use declined sharply during pregnancy, from 36.3% of patients in the 6 months preconception to 17.9%, 5.3%, and 5.8% in trimesters 1, 2 and 3, respectively. Postpartum DMT utilization increased to 20.9% at 0-3 months and 24.4% at 4-6 months. Of all patients in the preconception period, the most frequently used DMTs were glatiramer acetate (14.3%), dimethyl fumarate (6.0%), interferon (5.2%), and natalizumab (4.9%). Due to small sample size, information was limited for anti-CD20s and alemtuzumab. The proportion of patients with any moderate/severe relapse declined over pregnancy (preconception, n = 82 [8.7%]; pregnancy, n = 25 [2.6%]), but increased postpartum (n = 94 [10.0%]). Of the 889 patients who stopped DMT during pregnancy, the risk of postpartum relapses was lower in the patients who resumed DMT postpartum (10/192) than in patients who did not (76/697) (5.2% vs 10.9%; odds ratio, 0.455 [95% confidence interval 0.216-0.860], p = 0.018). Cases of postpartum depression and anxiety were significantly lower in commercially-insured patients vs Medicaid patients (postpartum depression, 13.7% vs 27.0%, p < 0.01; postpartum anxiety, 16.3% vs 30.5%, p < 0.01).
    CONCLUSIONS: DMT utilization declined sharply during pregnancy; it gradually increased postpartum but remained below pre-pregnancy use. The proportion of pwMS experiencing a moderate/severe relapse and number of relapses declined over pregnancy but increased postpartum. Reinitiation of DMT during the postpartum period was associated with lower risk of relapses, supporting a role for early reinitiation of DMT postpartum.
    UNASSIGNED: Biogen.
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  • 文章类型: Journal Article
    背景:本研究调查了物质使用障碍患者排斥与自杀行为之间的预测关系。它还试图强调排斥和自杀行为之间复发风险的中介作用。
    方法:该研究基于横断面调查设计。样本包括来自卡拉奇的100名年龄在30至45岁之间的男性(M=35.25,SD=3.06)。采用有目的的采样技术。这项研究采用了人口统计形式和三个自我报告指标:排斥经验量表(OES-A),复发问卷3.0的提前警告(意识),和自杀行为问卷修订(SBQ-R)。
    结果:排斥可显著预测复发风险和自杀行为。复发风险正预测排斥的两个维度(忽略:r=0.33,p<0.01;排除:r=0.43,p<0.01)和自杀行为(r=0.35,p<0.01)。此外,复发风险与总体排斥评分密切相关(r=0.43,p<0.01)。然而,没有发现排斥对自杀行为的显著中介作用。该效应通过复发风险介导(间接B=0.12,95%CI=0.04,0.23)。这些发现表明,排斥会增加复发的可能性,这反过来又与自杀行为有关。调解模型解释了自杀行为变化的17%。
    结论:研究结果提出了解决排斥作为自杀行为和药物使用障碍复发的危险因素的重要性。结果表明,减少排斥的不利影响和改善个人的社会支持可以对他们的心理健康产生重大影响。
    BACKGROUND: The present study investigated the predictive relationship between ostracism and suicidal behaviors in individuals with substance use disorders. It also attempts to highlight the mediating role of the risk of relapse between ostracism and suicidal behavior.
    METHODS: The study was based on a cross-sectional survey design. The sample comprised 100 men aged between 30 to 45 years (M = 35.25, SD = 3.06) from Karachi. The purposive sampling technique was employed. The study employed demographic forms and three self-reporting measures: the Ostracism Experience Scale (OES-A), the Advance Warning of Relapse Questionnaire 3.0 (AWARE), and the Suicide Behaviors Questionnaire-Revised (SBQ-R).
    RESULTS: Ostracism significantly predicted relapse risk and suicidal behavior. Risk of relapse positively predicted both dimensions of ostracism (ignored: r = 0.33, p < 0.01; excluded: r = 0.43, p < 0.01) and suicidal behavior (r = 0.35, p < 0.01). Additionally, the risk of relapse strongly correlated with overall ostracism score (r = 0.43, p < 0.01). However, no significant mediating effect of ostracism on suicidal behavior was found. The effect was mediated through the risk of relapse (B indirect = 0.12, 95% CI = 0.04, 0.23). These findings suggest that ostracism increases the likelihood of recurrence, which in turn is associated with suicidal behavior. The mediation model explained 17% of the variation in suicidal behavior.
    CONCLUSIONS: The findings propose the importance of addressing ostracism as a risk factor for suicidal behavior and relapse in substance use disorders. The results suggest that reducing the adverse effects of ostracism and improving social support for individuals can have a significant impact on their mental health.
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  • 文章类型: English Abstract
    Objective: This study aims to evaluate the safety and effectiveness of gilteritinib (Gilt) -based combination therapy bridging allo-HSCT for FLT3-ITD(+) R/R AML. Additionally, it aims to assess the impact of Gilt maintenance therapy on the prognosis of patients after allo-HSCT. Methods: The clinical data of 26 patients with FLT3-ITD(+) R/R AML treated at the First Affiliated Hospital of Soochow University from August 2019 to January 2023 were retrospectively analyzed. The analysis included an assessment of the composite complete remission rate (CRc), overall survival (OS) time, disease-free survival (DFS) time, and adverse events experienced by all enrolled patients. Results: A total of 26 patients with FLT3-ITD(+) R/R AML were enrolled, including 14 men and 12 women with a median age of 38 (18-65) years. A total of 18 cases were refractory, and eight cases were relapsed. The curative effect evaluation conducted between 14 and 21 days showed that the complete remission (CR) rate was 26.9% (7/26), the CR with hematology incomplete recovery was 57.7% (15/26), and the partial response (PR) rate was 7.7% (2/26). The CRc was 84.6% (22/26), and the minimal residual disease (MRD) negativity rate was 65.4%. The 12 month cumulative OS rate for all patients was 79.0%, and the 24 month cumulative OS rate was 72.0%. The median OS time was not determined. The median follow-up time was 16.0 months. Among the patients who responded to treatment, the 12 month cumulative DFS rate was 78.0%, and the 24 month cumulative DFS rate was 71.0%. The median DFS time was not determined. Patients who received allo-HSCT had a median OS time that was significantly longer than those who did not receive allo-HSCT (3.3 months, 95%CI 2.2-4.3 months, P=0.005). The median OS time of patients with or without Gilt maintenance therapy after allo-HSCT was not determined, but the OS time of patients with Gilt maintenance therapy after allo-HSCT treatment was longer than that of patients without Gilt maintenance therapy after allo-HSCT treatment (P=0.019). The FLT3-ITD mutation clearance rate in this study was 38.5%, and the median OS time of patients with FLT3-ITD mutation clearance was not determined but was significantly longer than the median OS of patients without FLT3-ITD mutation clearance (15.0 months; P=0.018). The most common grade 3 and above hematological adverse events of Gilt-based combination therapy included leukopenia (76.9%), neutropenia (76.9%), febrile neutropenia (61.5%), thrombocytopenia (69.2%), and anemia (57.7%). One patient developed differentiation syndrome during oral Gilt maintenance therapy after allo-HSCT treatment, but his condition improved after treatment. Conclusion: The Gilt-based combination therapy is highly effective in treating FLT3-ITD(+) R/R AML. It demonstrates a high CRc, MRD negativity rate, and rapid onset, leading to a significant improvement in patients\' survival. Furthermore, the clearance rate of FLT3-ITD mutation is notably high. Additionally, implementing bridging allo-HSCT and Gilt maintenance therapy after allo-HSCT treatment has considerably enhances patients\' survival. Closely monitoring and managing any adverse event that may occur during treatment are crucial.
    目的: 探讨Gilteritinib(Gilt)为基础的方案桥接异基因造血干细胞移植(allo-HSCT)对伴FMS样酪氨酸激酶3(FLT3)基因内部串联重复(ITD)突变的复发难治性急性髓系白血病(R/R AML)患者的安全性、有效性,以及移植后Gilt维持治疗对FLT3-ITD阳性R/R AML患者预后的影响。 方法: 回顾性分析2019年8月至2023年1月苏州大学附属第一医院收治的26例伴FLT3-ITD突变的R/R AML患者。统计所有纳入患者的复合完全缓解(CRc)率、总生存(OS)期、无病生存(DFS)期和不良反应。 结果: 26例FLT3-ITD突变阳性R/R AML患者中,男14例,女12例,中位年龄38(18~65)岁。难治18例,复发8例。用药第14~21天疗效:完全缓解(CR)率为26.9%(7/26),CR伴血液学不完全恢复(CRi)率为57.7%(15/26),部分缓解(PR)率为7.7%(2/26),CRc率为84.6%(22/26),微小残留病(MRD)转阴率为65.4%。所有患者12、24个月累计OS率分别为79.0%和72.0%。中位OS期未达到。中位随访时间为16.0个月。全部治疗有效患者12、24个月累计DFS率分别为78.0%和71.0%。中位DFS期未达到。接受allo-HSCT的患者中位OS期未达到,较未接受allo-HSCT的患者(3.3个月,95%CI 2.2~4.3个月)显著延长(P=0.005)。移植后是否应用Gilt维持治疗的患者中位OS期均未达到,且移植后维持治疗的患者OS明显优于移植后未进行维持治疗的患者(P=0.019)。本研究中FLT3-ITD基因突变清除率为38.5%,且FLT3-ITD基因突变转阴的患者中位OS期未达到,明显长于未转阴的患者(15.0个月)(P=0.018)。Gilt为基础的方案最常见的3级及以上血液学不良反应包括白细胞减少(76.9%)、中性粒细胞减少(76.9%)、中性粒细胞减少性发热(61.5%)、血小板减少(69.2%)和贫血(57.7%)。其中1例患者在移植后口服Gilt维持治疗时出现分化综合征,治疗后好转。 结论: Gilt为基础的方案桥接allo-HSCT治疗FLT3-ITD突变阳性R/R AML患者的CRc率较高,MRD转阴率也较高,起效迅速,有效延长患者生存期。此外,FLT3-ITD基因突变清除率较高,且桥接移植和移植后Gilt维持治疗明显改善患者生存。治疗过程中不良事件的监测和管理至关重要。.
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  • 文章类型: Journal Article
    关于与复发性尿路感染(RUTIs)相关的泌尿致病性大肠杆菌(UPEC)的特征知之甚少。本研究旨在分析复发或再感染引起的复发性UPEC分离株的表型耐药性。从70名患有RUTI的门诊患者中分离出总共140个大肠杆菌菌株。通过随机扩增多态性DNA聚合酶链反应分析所有分离株,以评估第一和第二分离株之间的遗传相似性。我们发现64.2%(45/70)的门诊患者在初次感染的大肠杆菌菌株中复发,而35.7%(25/70)的患者在新的大肠杆菌菌株中再次感染。与再感染菌株相比,复发UPEC分离株表现出更高的抗菌素耐药性;这些分离株中有89%具有多重耐药性,而46.6%是超广谱β-内酰胺酶生产者。我们的研究提供了证据表明,尽管有适当的抗生素治疗,RUTI主要是由原始菌株在宿主中的持久性(复发)驱动的。并且只有归因于复发的RUTI似乎有利于UPEC分离株的多药耐药性。
    Little is known about the characteristics of uropathogenic Escherichia coli (UPEC) associated with recurrent urinary tract infections (RUTIs). The present study aimed to analyze the phenotypic antimicrobial resistance of recurrent UPEC isolates attributable to either relapse or reinfection. A total of 140 E. coli strains were isolated from 70 outpatients with RUTIs. All isolates were analyzed by random amplified polymorphic DNA-polymerase chain reaction to evaluate genetic similarity between the first and second isolates. We found that 64.2% (45/70) of outpatients had a relapse with the primary infecting E. coli strain and 35.7% (25/70) had reinfection with a new E. coli strain. Compared with reinfecting strains, relapse UPEC isolates exhibited much higher antimicrobial resistance; 89% of these isolates were multidrug-resistant and 46.6% were extended-spectrum β-lactamase producers. Our study provides evidence that RUTIs are mainly driven by the persistence of the original strain in the host (relapses) despite appropriate antibiotic treatments, and only RUTIs attributed to relapses seem to favor multidrug resistance in UPEC isolates.
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  • 文章类型: Journal Article
    物质使用障碍(SUD)被视为一个连续体,从目标导向和享乐主义的药物使用到对药物摄入失去控制,对身心健康和社会功能产生不利影响。我们的跨学科德国合作研究中心的主要目标是(i)研究触发因素(药物线索,压力源,药物启动)和修饰因素(年龄,性别,身体活动,认知功能,童年的逆境,社会因素,例如孤独和社交接触/互动),纵向调节在现实生活条件下失去和重新控制药物消费的轨迹。(二)研究潜在的行为,疾病轨迹和药物相关行为的认知和神经生物学机制,以及(iii)提供基于非侵入性机制的干预措施。这些目标通过以下方式实现:(A)使用创新的mHealth(移动健康)工具,在900名酒精使用障碍患者的队列中,纵向监测现实生活中触发因素和改变因素对药物消费模式的影响。这种方法将得到成瘾动物模型的补充,在整个疾病轨迹上进行24/7自动化行为监测;即从幼稚状态到吸毒状态再到成瘾或弹性状态。(B)识别和如果适用,关键分子的计算建模,神经生物学和心理机制(例如,认知灵活性降低)调解此类触发因素和改变因素对疾病轨迹的影响。(C)开发和测试非侵入性干预措施(例如,即时自适应干预(JITAI),各种非侵入性脑刺激(NIBS),个性化的身体活动),专门针对重新控制药物摄入的潜在机制。这里,我们将报告第一个资助期最重要的成果,并概述我们未来的研究策略。
    Substance use disorders (SUDs) are seen as a continuum ranging from goal-directed and hedonic drug use to loss of control over drug intake with aversive consequences for mental and physical health and social functioning. The main goals of our interdisciplinary German collaborative research centre on Losing and Regaining Control over Drug Intake (ReCoDe) are (i) to study triggers (drug cues, stressors, drug priming) and modifying factors (age, gender, physical activity, cognitive functions, childhood adversity, social factors, such as loneliness and social contact/interaction) that longitudinally modulate the trajectories of losing and regaining control over drug consumption under real-life conditions. (ii) To study underlying behavioural, cognitive and neurobiological mechanisms of disease trajectories and drug-related behaviours and (iii) to provide non-invasive mechanism-based interventions. These goals are achieved by: (A) using innovative mHealth (mobile health) tools to longitudinally monitor the effects of triggers and modifying factors on drug consumption patterns in real life in a cohort of 900 patients with alcohol use disorder. This approach will be complemented by animal models of addiction with 24/7 automated behavioural monitoring across an entire disease trajectory; i.e. from a naïve state to a drug-taking state to an addiction or resilience-like state. (B) The identification and, if applicable, computational modelling of key molecular, neurobiological and psychological mechanisms (e.g., reduced cognitive flexibility) mediating the effects of such triggers and modifying factors on disease trajectories. (C) Developing and testing non-invasive interventions (e.g., Just-In-Time-Adaptive-Interventions (JITAIs), various non-invasive brain stimulations (NIBS), individualized physical activity) that specifically target the underlying mechanisms for regaining control over drug intake. Here, we will report on the most important results of the first funding period and outline our future research strategy.
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  • 文章类型: Journal Article
    蒽环类药物可有效治疗急性髓性白血病(AML),但受心脏毒性的限制。CPX-351,一种脂质体柔红霉素和阿糖胞苷,可以提供治疗益处,心脏毒性较小。在1/2期儿童肿瘤学组研究中,在CPX-351治疗的复发性AML患儿中,评估了左心室收缩功能和心脏生物标志物的急性变化。AAML1421.
    受试者在第1、3和5天接受135单位/m2/剂量的CPX-351作为第1周期。在基线和第1周期结束时(第29+/-1周)进行超声心动图并集中定量。高敏肌钙蛋白(hs-cTnT)和N末端B型利钠肽原(NT-proBNP)在基线和连续到第1周期结束时(第5、8、15、22和29天)进行测量。使用Wilcoxon符号秩检验分析基线和CPX-351后回声/生物标志物测量值之间的差异。在每个时间点使用cTnT/NT-proBNP对CPX-351后左心室射血分数(LVEF)进行线性回归建模,控制基线LVEF。癌症治疗相关的心功能不全(CTRCD)定义为LVEF下降≥10%-<50%。
    在AAML1421上登记的38名重度蒽环类药物预处理(中位数348mg/m2柔红霉素当量)受试者中的25名被包括在心脏分析中。在基线,25名受试者中有8名(32%)的中央定量LVEF<50%,LVEF中位数为53.8%[48.0,56.9].CPX-351后,LVEF显着下降(ΔLVEF-3.3%[-7.8,0]),25名受试者中有6名(24%)经历了CTRCD。在所有科目中,与基线相比,第1周期结束时hs-cTnT略有增加[基线hs-cTnT7.2(3,10.6);ΔcTnT1.80(0,6.1),p=0.03]。NT-proBNP保持稳定升高,无明显变化。NT-proBNP或cTnT水平与CPX-351后LVEF之间没有显著关联。
    在这项暴露于CPX-351的蒽环类药物预处理儿童的单臂研究中,心血管功能的基线异常普遍存在。CPX-351后,LVEF下降,cTnT增加,NT-proBNP没有变化。需要更长时间的随访以确定这些变化是否会导致临床上有意义的长期心脏功能下降。一项正在进行的CPX-351与标准蒽环类抗生素在蒽环类抗生素初治患者中的随机试验将进一步了解CPX-351的心脏效应(ClinicalTrials.gov;NCT04293562)。
    UNASSIGNED: Anthracyclines are effective in treating acute myeloid leukemia (AML) but limited by cardiotoxicity. CPX-351, a liposomal daunorubicin and cytarabine, may provide therapeutic benefit with less cardiotoxicity. Acute changes in left ventricular systolic function and cardiac biomarkers were evaluated after a cycle of CPX-351 in children with relapsed AML treated on the phase 1/2 Children\'s Oncology Group study, AAML1421.
    UNASSIGNED: Subjects received 135 units/m2/dose of CPX-351 on days 1, 3, and 5 as cycle 1. Echocardiograms were performed and centrally quantitated at baseline and at the end of cycle 1 (day 29 +/- 1 week). High sensitivity troponin (hs-cTnT) and N-terminal pro-B-type natriuretic peptide (NT-proBNP) were measured at baseline and serially through the end of cycle 1 (days 5, 8, 15, 22 and 29). Differences between baseline and post-CPX-351 echo/biomarker measures were analyzed using Wilcoxon signed rank tests. Linear regression was used to model post-CPX-351 left ventricular ejection fraction (LVEF) with cTnT/NT-proBNP at each time point, controlling for baseline LVEF. Cancer therapy related cardiac dysfunction (CTRCD) was defined as a decline in LVEF of ≥10%-<50%.
    UNASSIGNED: Twenty-five of 38 heavily anthracycline pre-treated (median 348 mg/m2 daunorubicin equivalents) subjects enrolled on AAML1421 were included in the cardiac analyses. At baseline, centrally quantitated LVEF was <50% in 8 of 25 subjects (32%) with a median LVEF of 53.8% [48.0, 56.9]. Following CPX-351, LVEF declined significantly (ΔLVEF -3.3% [-7.8, 0]) and 6 of 25 subjects (24%) experienced CTRCD. Amongst all subjects, hs-cTnT was modestly increased at end of cycle 1 compared to baseline [baseline hs-cTnT 7.2 (3, 10.6); ΔcTnT 1.80 (0, 6.1), p = 0.03]. NT-proBNP remained stably elevated without significant change. No significant associations were seen between NT-proBNP or cTnT levels and post-CPX-351 LVEF.
    UNASSIGNED: In this single arm study of anthracycline pre-treated children exposed to CPX-351, baseline abnormalities in cardiovascular function were prevalent. Following CPX-351, LVEF decreased, cTnT increased, and NT-proBNP did not change. Longer follow-up is needed to determine whether these changes result in clinically meaningful long-term decrements in cardiac function. An ongoing randomized trial of CPX-351 compared to standard anthracyclines in anthracycline naïve patients will provide further insight into the cardiac effects of CPX-351 (ClinicalTrials.gov; NCT04293562).
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  • 文章类型: Case Reports
    淋巴细胞性心肌炎(LM)主要由多种因素引发,包括病毒感染和随后的免疫反应。虽然罕见,一些LM患者经历了危及生命的暴发性形式的复发。虽然结合了类固醇和免疫抑制剂,如硫唑嘌呤和霉酚酸酯,在LM患者中表现出良好的预后,其疗效仅限于慢性期。的确,各种免疫抑制剂已用于具有暴发性表现的LM;然而,他们的证据仍然缺乏。在我们的案例系列中,两名LM患者在类固醇逐渐减少期间经历了暴发性复发,和另一个提出了持续的心肌酶升高,尽管类固醇治疗。因此,我们与类固醇一起启动了钙调磷酸酶抑制剂,导致良好控制的临床过程,没有进一步的LM复发和显着的不良反应。我们的病例表明,钙调磷酸酶抑制剂可作为治疗类固醇耐药的LM伴暴发性复发的治疗选择。
    Lymphocytic myocarditis (LM) is primarily triggered by various factors including viral infections and subsequent immune responses. While rare, some patients with LM experience recurrence with a life-threatening fulminant form. Although combining steroids and immunosuppressants, such as azathioprine and mycophenolate mofetil, has demonstrated favourable outcomes in patients with LM, their efficacy is limited to the chronic phase. Indeed, various immunosuppressants have been used for LM with fulminant manifestation; however, their evidence remains lacking. In our case series, two patients with LM experienced fulminant relapses during steroid tapering, and another presented persistent cardiac enzymes elevation despite steroid therapies. Consequently, we initiated calcineurin inhibitors alongside steroids, resulting in well-controlled clinical courses without further recurrence of LM and significant adverse effects. Our cases suggest calcineurin inhibitors as therapeutic options for managing steroid-resistant LM with fulminant relapse.
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  • 文章类型: Journal Article
    多发性硬化症(MS)急性复发的主要治疗方法是静脉内施用高剂量甲基强的松龙(IVMP)。然而,皮质类固醇治疗对MS(pwMS)患者急性神经炎症的影响机制尚不完全清楚.特别是,迄今为止,糖皮质激素(GC)对先天免疫系统细胞的诱导变化以及不同免疫疗法患者之间的差异很少受到关注.
    我们使用流式细胞术对复发期间接受IVMP治疗的pwMS的外周血单核细胞进行了免疫表型分型。我们比较了IVMP治疗对三组中多种免疫细胞亚群的影响:12名患者未接受疾病修饰治疗(wDMT),10名患者接受平台治疗(PT),18名患者接受芬戈莫德治疗(FTY)。
    我们观察到IVMP对不同免疫细胞亚群的显著的个体间短期和中期效应。除了有据可查的T辅助细胞(Th细胞)减少外,我们在首次输注IVMP后检测到中性粒细胞的先天性免疫反应中的显著改变,嗜酸性粒细胞和嗜碱性粒细胞,单核细胞和浆细胞样树突状细胞(pDC)。在将患者wDMT与PT和FTY队列进行比较时,我们发现,在所有治疗组中,IVMP对先天免疫细胞的影响相似.然而,在FTY治疗下,我们未观察到已有淋巴细胞减少的患者在IVMP期间T淋巴细胞计数进一步显著下降.尽管T细胞凋亡被认为是GCs的主要作用机制,FTY患者在IVMP治疗后仍报告症状改善.
    除了T细胞抑制,我们的数据表明GC的进一步免疫调节机制,特别是对先天免疫反应的细胞,比以前理解的意义更大。由于DMT对适应性免疫细胞的调节,GC对这些细胞的影响取决于潜在的DMT。涉及较大队列和脑脊液样本的其他研究是必要的,以更深入地了解在复发期间具有不同DMT的pwMS中对GC的免疫反应,以定义和解释临床反应谱的差异。
    UNASSIGNED: The primary treatment for acute relapses in multiple sclerosis (MS) is the intravenous administration of high-dose methylprednisolone (IVMP). However, the mechanisms through which corticosteroid treatment impacts acute neuroinflammation in people with MS (pwMS) remain not fully understood. In particular, the changes induced by glucocorticoids (GCs) on cells of the innate immune system and the differences between patients with distinct immunotherapies have received little attention to date.
    UNASSIGNED: We conducted immunophenotyping using flow cytometry on peripheral blood mononuclear cells of pwMS who received IVMP treatment during a relapse. We compared the impact of an IVMP treatment on a broad variety of immune cell subsets within three groups: twelve patients who were treatment-naïve to disease modifying therapies (wDMT) to ten patients on platform therapies (PT) and eighteen patients on fingolimod therapy (FTY).
    UNASSIGNED: We observed pronounced interindividual short- and intermediate-term effects of IVMP on distinct immune cells subsets. In addition to the well-documented decrease in T-helper cells (Th cells), we detected significant alterations after the first IVMP infusion within the innate immune response among neutrophil, eosinophil and basophil granulocytes, monocytes and plasmacytoid dendritic cells (pDCs). When comparing patients wDMT to the PT and FTY cohorts, we found that IVMP had a similar impact on innate immune cells across all treatment groups. However, we did not observe a significant further decline in T lymphocyte counts during IVMP in patients with pre-existing lymphopenia under FTY treatment. Although T cell apoptosis is considered the main mechanism of action of GCs, patients with FTY still reported symptom improvement following IVMP treatment.
    UNASSIGNED: In addition to T cell suppression, our data suggests that further immunoregulatory mechanisms of GC, particularly on cells of the innate immune response, are of greater significance than previously understood. Due to the regulation of the adaptive immune cells by DMTs, the impact of GC on these cells varies depending on the underlying DMT. Additional studies involving larger cohorts and cerebrospinal fluid samples are necessary to gain a deeper understanding of the immune response to GC in pwMS with different DMTs during relapse to define and explain differences in clinical response profiles.
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  • 文章类型: Journal Article
    金黄色葡萄球菌菌血症继续与显著的发病率和死亡率相关,尽管在诊断和管理方面有所改善。持续感染对临床医生构成重大挑战,并且一直被证明会增加死亡和其他感染并发症的风险。金黄色葡萄球菌,虽然通常不被认为是细胞内病原体,已经被证明可以利用细胞内的生态位,通过几种表型,包括小菌落变异,作为一种与慢性疾病有关的生存手段,持久性,和反复感染。这种细胞内持久性允许保护免受宿主免疫系统的影响,并通过多种机制导致抗生素功效降低。这些包括抗菌素耐药性,容忍度,和/或金黄色葡萄球菌的持久性,这有助于持续菌血症。这篇综述将讨论与治疗这些复杂感染相关的挑战以及金黄色葡萄球菌在细胞内空间内持续存在的各种方法。
    Staphylococcus aureus bacteremia continues to be associated with significant morbidity and mortality, despite improvements in diagnostics and management. Persistent infections pose a major challenge to clinicians and have been consistently shown to increase the risk of mortality and other infectious complications. S. aureus, while typically not considered an intracellular pathogen, has been proven to utilize an intracellular niche, through several phenotypes including small colony variants, as a means for survival that has been linked to chronic, persistent, and recurrent infections. This intracellular persistence allows for protection from the host immune system and leads to reduced antibiotic efficacy through a variety of mechanisms. These include antimicrobial resistance, tolerance, and/or persistence in S. aureus that contribute to persistent bacteremia. This review will discuss the challenges associated with treating these complicated infections and the various methods that S. aureus uses to persist within the intracellular space.
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  • 文章类型: Journal Article
    目的:复发性多发性硬化症(RMS)的复发表现因性别而异,导致不同的结果。年龄的影响似乎很可能,但对女性和男性的单独研究较少。
    方法:使用Ocrelizumab在RMS中的关键试验的大型定义明确的数据集,OPERAI和II,和他们的开放标签扩展,我们进行了事后分析,以调查534名受试者中n=929例复发的性别和年龄相关差异的复发表型(171名男性,363名妇女)。受影响的功能系统的频率按性别和三个年龄段(<35、35-44,≥45岁)进行了分析。此探索性分析给出了精确的p值。
    结果:单症状和多症状复发表现的频率在不同性别之间和不同年龄组中都没有差异。男性复发患者的小脑症状更常见(女性[f]:23.1%,男性[m]:33.0%,p=0.002),女性的复发包括更多的感官(f:53.8%,m:32.3%,p<0.001)和疲劳症状(f:22.6%,m:14.7%,p=0.006)。而感觉受累的性别差异在所有年龄组都存在(<35岁:f:58.3%,m:30.4%,p<0.001;35-44岁:f:53.7%,m:36.0%,p=0.003;≥45岁:f:47.8%,m:28.8%,p=0.009),小脑受累的差异随着年龄的增长而减小(<35岁:f:20.1%,m:33.3%,p=0.009;35-44岁:f:22.7%,m:34.2%,p=0.034;≥45岁:f:27.8%,m:30.3%,p=0.750)。复现表现似乎只随着女性的年龄而改变。
    结论:我们仅描述了性别特异性复发表现和年龄对女性的影响。潜在的因果关系需要进一步调查。
    OBJECTIVE: Relapse presentation in relapsing multiple sclerosis (RMS) differs between sexes, leading to differential outcomes. An influence of age seems likely but is less well investigated separately for women and men.
    METHODS: Using the large well-defined dataset of the pivotal trials of ocrelizumab in RMS, OPERA I and II, and their open-label extension, we performed a post hoc analysis to investigate relapse phenotypes for sex- and age-related differences in n = 929 relapses in 534 subjects (171 men, 363 women). Frequencies of affected functional systems were analyzed separated by sex and for three age strata (<35, 35-44, ≥45 years). Exact p-values are given for this exploratory analysis.
    RESULTS: Frequencies of mono- versus polysymptomatic relapse presentations were different neither between sexes nor in different age groups. Cerebellar symptoms were more frequent in relapses in men (female [f]: 23.1%, male [m]: 33.0%, p = 0.002), and women\'s relapses included more sensory (f: 53.8%, m: 32.3%, p < 0.001) and fatigue symptoms (f: 22.6%, m: 14.7%, p = 0.006). Whereas the sex difference for sensory involvement was present over all age groups (<35 years: f: 58.3%, m: 30.4%, p < 0.001; 35-44 years: f: 53.7%, m: 36.0%, p = 0.003; ≥45 years: f: 47.8%, m: 28.8%, p = 0.009), the difference for cerebellar involvement diminished with age (<35 years: f: 20.1%, m: 33.3%, p = 0.009; 35-44 years: f: 22.7%, m: 34.2%, p = 0.034; ≥45 years: f: 27.8%, m: 30.3%, p = 0.750). Relapse presentation seemed to shift with age in women only.
    CONCLUSIONS: We describe sex-specific relapse presentations and an influence of age only for women. Underlying causal factors warrant further investigations.
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