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免疫缺陷 41 伴有淋巴细胞增生和自身免疫
  • 文章类型: Journal Article
    哮喘是一个全球性的健康挑战。主要的药物治疗是合成化学品和生物药物,成本很高,并有明显的副作用。相比之下,使用天然产品,如洋葱(洋葱,Amaryllic科)在气道疾病的治疗中由于其感知的功效和很少的安全性问题而在世界范围内有所增加。然而,它们的药理作用在很大程度上仍未表征。
    我们研究了洋葱鳞茎提取物(OBE)是否可以(1)逆转已确定的哮喘表型(治疗性治疗)和/或(2)预防哮喘表型的发展,如果在免疫过程之前给予(预防性治疗)。
    建立六组雄性Balb/c小鼠用于治疗性(21天),并建立五组用于预防性(19天)治疗方案;包括用载体或OBE(30、60和100mg/kg/i.p.)治疗的PBS和屋尘螨(HDM)攻击的小鼠。使用细胞学检查确定气道炎症,组织学,免疫荧光,蛋白质印迹,和血清IgE。
    治疗性(60mg/kg/i.p.)和预防性(100mg/kg/i.p.)OBE治疗导致HDM诱导的气道细胞内流下调,组织病理学改变和促炎信号通路EGFR的表达增加,ERK1/2,AKT,促炎细胞因子和血清IgE。
    我们的数据表明OBE是一种有效的抗炎药,具有治疗和预防哮喘作用。这些发现暗示洋葱/OBE可用作已确定的哮喘的辅助治疗剂和/或预防过敏性哮喘的发展。然而,进一步的研究,以确定活性成分,并证明人类需要概念证明。
    UNASSIGNED: Asthma presents a global health challenge. The main pharmacotherapy is synthetic chemicals and biological-based drugs that are costly, and have significant side effects. In contrast, use of natural products, such as onion (Allium cepa L., Amaryllidaceae) in the treatment of airway diseases has increased world-wide because of their perceived efficacy and little safety concerns. However, their pharmacological actions remain largely uncharacterized.
    UNASSIGNED: We investigated whether onion bulb extract (OBE) can (1) reverse established asthma phenotype (therapeutic treatment) and/or (2) prevent the development of the asthma phenotype, if given before the immunization process (preventative treatment).
    UNASSIGNED: Six groups of male Balb/c mice were established for the therapeutic (21 days) and five groups for the preventative (19 days) treatment protocols; including PBS and house dust mite (HDM)-challenged mice treated with vehicle or OBE (30, 60, and 100 mg/kg/i.p.). Airways inflammation was determined using cytology, histology, immunofluorescence, Western blot, and serum IgE.
    UNASSIGNED: Therapeutic (60 mg/kg/i.p.) and preventative (100 mg/kg/i.p.) OBE treatment resulted in down-regulation of HDM-induced airway cellular influx, histopathological changes and the increase in expression of pro-inflammatory signaling pathway EGFR, ERK1/2, AKT, pro-inflammatory cytokines and serum IgE.
    UNASSIGNED: Our data show that OBE is an effective anti-inflammatory agent with both therapeutic and preventative anti-asthma effects. These findings imply that onion/OBE may be used as an adjunct therapeutic agent in established asthma and/or to prevent development of allergic asthma. However, further studies to identify the active constituents, and demonstrate proof-of-concept in humans are needed.
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  • 文章类型: Journal Article
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  • 文章类型: Case Reports
    未经证实:动脉内注射(IA)虽然罕见,导致急性肢体缺血,常导致灾难性后果。症状可以迅速发展,早期识别和干预可以帮助预防肢体坏疽。
    未经评估:据报告,该工作符合SCARE2020标准:AghaRA,FranchiT,索拉比C,MathewG,对于SCARE组。SCARE2020指南:更新共识性外科手术案例报告(SCARE)指南,国际外科杂志2020;84:226-230。手术程序由普外科顾问进行。
    UNASHSIGNED:38岁的男性因手术伤亡,有左前臂和手掌突然出现疼痛和感觉异常,随后进行性无力和变色,在肘部中部注射双氯芬酸15小时后。
    未经批准:在考试中,肢体温度较低,手指的运动是最小的。然而,远端脉搏明显,双超声显示三相血流正常。鉴于模棱两可的临床放射学发现,患者接受了上肢CT血管造影,显示桡动脉和尺动脉不混浊。前臂筋膜切开术,尝试在可行的左上肢中进行肱动脉探查和取栓。未发现血栓。随后,他被保守地管理,做了颈交感神经切除术.由于肢体的生存能力逐渐恶化,患者接受了肘部以上截肢术。
    未经证实:动脉内注射可导致威胁肢体的坏疽,其过程可以是快速的多学科团队方法是必要的,以达到诊断和提供最佳的护理。
    UNASSIGNED: Intra-arterial injections (IA) though rare, cause acute limb ischaemia with often catastrophic outcomes. Symptoms could progress rapidly and early identification and intervention could help in preventing the limb gangrene.
    UNASSIGNED: The work has been reported in line with the SCARE 2020 criteria:Agha RA, Franchi T, Sohrabi C, Mathew G, for the SCARE Group. The SCARE 2020 Guideline: Updating Consensus Surgical CAse REport (SCARE) Guidelines, International Journal of Surgery 2020; 84:226-230. Operative procedure was performed by consultant of general surgery.
    UNASSIGNED: 38-year-old male presented to surgery casualty with history of sudden onset of pain and paraesthesia in the left forearm and palm followed by progressive weakness and discolouration, 15 hours following injection of Diclofenac in the mid cubital region.
    UNASSIGNED: On examination, limb temperature was lower, finger movements were minimal. However, distal pulses were palpable, and duplex ultrasound showed normal triphasic flow. In view of the equivocal clinico-radiological findings, the patient underwent CT-Angiography of upper limb, which showed non-opacification of radial and ulnar arteries. Fasciotomy of forearm, brachial artery exploration and removal of embolus was attempted in a doubtful viable left upper limb. No thrombus was noted. Subsequently, he was managed conservatively, and cervical sympathectomy was done. As there was progressive deterioration in the viability of the limb, the patient underwent an above elbow amputation.
    UNASSIGNED: Intra-arterial injections can lead to limb threatening gangrene, the course of which can be rapid A multidisciplinary team approach was necessary to arrive at a diagnosis and provide optimum care.
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  • 文章类型: Journal Article
    可食用薄膜和涂层(EFC)是基于大分子的结构,形成薄层,通常作为提高食品稳定性的工具进行研究。有时被认为是包装系统和食品本身的一部分。然而,EFC不仅仅是包装材料,有时它们甚至不扮演与包装有关的角色。本图表总结了EFC的可能作用,包括初级包装,保持食物成分之间的水分活度梯度,控制食品加工的传质,携带活性成分,或者作为感官吸引力的来源。EFC甚至可以以可以同时扮演这些角色中的两个或更多个的方式设计。
    Edible films and coatings (EFC) are macromolecular-based structures forming thin layers that are usually studied as tools to improve food stability, sometimes being considered as parts of both the packaging system and the food itself. However, EFC are not mere packaging materials, and sometimes they do not even play roles related to those of packaging. This graphical review summarizes possible roles of EFC, including primary packaging, keeping water activity gradients between food components, controlling mass transfer on food processing, carrying active components, or serving as sources of sensory appeal. EFC may even be designed in a way that two or more of those roles may be played simultaneously.
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  • 文章类型: Journal Article
    UNASSIGNED: Antibody-mediated rejection (AMR) is one of the leading causes of graft loss in kidney transplant recipients but little is known about the associated cost and healthcare burden of AMR.
    UNASSIGNED: We developed an algorithm to detect AMR using the 2006-2011 Centers for Medicare & Medicaid Services (CMS) using ICD-10 and billing codes as there is no specific ICD-10 or procedure code for AMR. We then compared healthcare utilization, cost, and risk of graft failure or death in AMR. patients versus matched controls.
    UNASSIGNED: The algorithm had a 39.4% true-positive rate (69/175) and a 4.1% false-positive rate (110/2,655). We identified 5,679/101,554 (5.6%) with AMR, who had a nearly 3-fold higher risk of graft failure (hazard ratio [HR], 2.75, 95% confidence interval [CI], 2.50 to 3.03; p < .0001) and death (HR, 2.59; 95% CI, 2.35 to 2.86; p < .0001) at 2 years, nearly 5 times the hospitalizations in the 60 d before AMR diagnosis, and increased nephrology and emergency department visits. Mean AMR attributable healthcare costs were 4 times higher than matched controls, at $13,066 more per patient in the 60 d before AMR diagnosis and $35,740 per patient per year higher in the 2 years after AMR diagnosis.
    UNASSIGNED: US kidney transplant recipients with AMR have substantially greater healthcare utilization and higher costs and risk of graft loss and mortality.
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  • 文章类型: Journal Article
    为了研究生物仿制药静脉注射曲妥珠单抗-dkst与参考静脉注射(曲妥珠单抗-IV)和皮下曲妥珠单抗(曲妥珠单抗-SC)(有/没有帕妥珠单抗)在转移性乳腺癌(MBC)中的成本效率和预算中立的扩展途径。
    在1,000名MBC患者的小组中进行经济模拟建模,以估计:1)通过在10-100%的转化率下从曲妥珠单抗IV或曲妥珠单抗-SC转换为曲妥珠单抗-dkst的成本节省3个体重组:第一四分位数(Q1:62.2kg),中位数(73.1公斤),第三四分位数(Q3:88.6公斤),和2)预算中立,从成本节约中扩大对曲妥珠单抗-dkst的访问。
    在单药治疗中,曲妥珠单抗-IV的转化(%)可节省1年成本,从2,272,189美元(Q1;10%)降至31,506,804美元(Q3;100%),曲妥珠单抗-SC单药治疗可节省2,071,277美元(Q3;10%)至35,775美元(Q1;100%).与帕妥珠单抗联合使用,曲妥珠单抗-dkst在所有患者体重方面具有成本效益,与曲妥珠单抗-IV相比,一年节省高达32,662,714美元(Q3;100%),与曲妥珠单抗-SC相比,一年节省高达35,322,461美元(Q1;100%)。来自曲妥珠单抗-IV单一疗法的转化的节省可以提供3,087(Q1;10%)和30,911(Q3;100%)之间的额外曲妥珠单抗-dkst剂量-足以治疗58至583名患者一年。曲妥珠单抗-SC单一疗法的转化可以提供1,559(Q3;10%)和48,598(Q1;100%)之间的额外曲妥珠单抗-dkst剂量或38至918额外的曲妥珠单抗-dkst一年治疗。与帕妥珠单抗联合使用,曲妥珠单抗-IV的转化可提供311次(Q1;10%)至3,939次(Q3;100%)维持剂量(帕妥珠单抗+曲妥珠单抗-dkst)或17次至210次额外的1年方案(所有药物).从曲妥珠单抗-SC转换的节省可以扩大到226(Q3;10%)至4,782(Q1;100%)的额外维持剂量或12至254个为期一年的方案。
    这项对生物仿制药治疗癌症药物的首次成本效益和扩展访问研究表明,在单药治疗以及与帕妥珠单抗和紫杉醇联合治疗的所有患者体重中,曲妥珠单抗-dkst比曲妥珠单抗-IV和曲妥珠单抗-SC更具成本效益。这些成本节约可以在预算中立的基础上为更多患者提供曲妥珠单抗-dkst治疗。
    UNASSIGNED: To investigate the cost-efficiency and budget-neutral expanded access of biosimilar intravenous trastuzumab-dkst versus reference intravenous (trastuzumab-IV) and subcutaneous trastuzumab (trastuzumab-SC) (with/without pertuzumab) in metastatic breast cancer (MBC).
    UNASSIGNED: Economic simulation modeling in a panel of 1,000 MBC patients to estimate: 1) cost-savings by conversion from trastuzumab-IV or trastuzumab-SC to trastuzumab-dkst at 10-100% conversion rates in 3 weight groups: first quartile (Q1:62.2 kg), median (73.1 kg), third quartile (Q3:88.6 kg), and 2) budget-neutral expanded access to trastuzumab-dkst from cost-savings.
    UNASSIGNED: In monotherapy, conversion (%) from trastuzumab-IV generates one-year cost-savings from $2,272,189 (Q1;10%) to $31,506,804 (Q3;100%) and from trastuzumab-SC monotherapy savings range from $2,071,277 (Q3;10%) to $35,775,475 (Q1;100%). In combination with pertuzumab, trastuzumab-dkst is cost-efficient in all patient weights with one-year savings over trastuzumab-IV up to $32,662,714 (Q3;100%) and over trastuzumab-SC up to $35,322,461 (Q1;100%). Savings from conversion from trastuzumab-IV monotherapy could provide between 3,087 (Q1;10%) and 30,911 (Q3;100%) additional trastuzumab-dkst doses-enough to treat 58 to 583 patients for one year. Conversion from trastuzumab-SC monotherapy could provide between 1,559 (Q3;10%) and 48,598 (Q1;100%) additional trastuzumab-dkst doses or 38 to 918 additional one-year treatments with trastuzumab-dkst. In combination with pertuzumab, conversion from trastuzumab-IV could provide from 311 (Q1;10%) to 3,939 (Q3;100%) maintenance doses (pertuzumab + trastuzumab-dkst) or 17 to 210 additional one-year regimens (all agents). Savings from conversion from trastuzumab-SC could expand access to 226 (Q3;10%) to 4,782 (Q1;100%) additional maintenance doses or 12 to 254 one-year regimens.
    UNASSIGNED: This first cost-efficiency and expanded access study of biosimilar therapeutic cancer agents shows that trastuzumab-dkst is cost-efficient over trastuzumab-IV and trastuzumab-SC across all patient weights in both monotherapy and combination with pertuzumab and paclitaxel. These cost savings could provide more patients with trastuzumab-dkst treatment on a budget-neutral basis.
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  • 文章类型: Case Reports
    Distal Arthrogryposis type 5D (DA5D) is characterized by congenital contractures involving the distal joints, short stature, scoliosis, ptosis, astigmatism, and dysmorphic features. It is inherited in an autosomal recessive manner, and it is a result of homozygous or compound heterozygous variants in the ECEL1 gene. Here, we report two patients of Sardinian origin harboring a new intronic homozygous variant in ECEL1 (c.1507-9G>A), which was predicted to affect mRNA splicing by activating a cryptic acceptor site. The frequency of the variant is very low in the general human population, and its presence in our families can be attributed to a founder effect. This study provides an updated review of the known causative mutations of the ECEL1 gene, enriching the allelic spectrum to include the noncoding sequence.
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  • 文章类型: Journal Article
    The CHEK2 gene is involved in the repair of damaged DNA. CHEK2 germline mutations impair this repair mechanism, causing genomic instability and increasing the risk of various cancers, including papillary thyroid carcinoma (PTC). Here, we asked whether CHEK2 germline mutations predict a worse clinical course for PTC. The study included 1547 unselected PTC patients (1358 women and 189 men) treated at a single center. The relationship between mutation status and clinicopathological characteristics, treatment responses, and disease outcome was assessed. CHEK2 mutations were found in 240 (15.5%) of patients. A CHEK2 I157T missense mutation was found in 12.3%, and CHEK2 truncating mutations (IVS2 + 1G > A, del5395, 1100delC) were found in 2.8%. The truncating mutations were more common in women (p = 0.038), and were associated with vascular invasion (OR, 6.91; p < 0.0001) and intermediate or high initial risk (OR, 1.92; p = 0.0481) in multivariate analysis. No significant differences in these parameters were observed in patients with the I157T missense mutation. In conclusion, the CHEK2 truncating mutations were associated with vascular invasion and with intermediate and high initial risk of recurrence/persistence. Neither the truncating nor the missense mutations were associated with worse primary treatment response and outcome of the disease.
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  • 文章类型: Journal Article
    OBJECTIVE: Rivaroxaban reduces stroke compared with warfarin in patients with non-valvular atrial fibrillation (NVAF). This study compared healthcare costs before and after stroke in NVAF patients treated with rivaroxaban or warfarin.
    METHODS: Using de-identified IBM MarketScan Commercial and Medicare databases, this retrospective cohort study (from 2011 to 2019) included patients with NVAF who initiated rivaroxaban or warfarin within 30 days after initial NVAF diagnosis. Patients who developed stroke were identified, and stroke severity was determined by the National Institutes of Health Stroke Scale (NIHSS) score, imputed by a random forest method. Total all-cause per-patient per-year (PPPY) costs of care were determined for patients: (1) who developed stroke during the pre- and post-stroke periods and (2) who remained stroke-free during the follow-up period. Treatment groups were balanced using inverse probability of treatment weighting.
    RESULTS: A total of 13,599 patients initiated rivaroxaban and 39,861 initiated warfarin, of which 272 (2.0%) and 1,303 (3.3%), respectively, developed stroke during a mean follow-up of 28 months. Among patients who developed stroke, PPPY costs increased from the pre-stroke to post-stroke period, with greater increases in the warfarin cohort relative to the rivaroxaban cohort. Overall, the costs increased by 1.78-fold for rivaroxaban vs 3.07-fold for warfarin; for less severe strokes (NIHSS < 5), costs increased 0.88-fold and 1.05-fold, respectively. Cost increases for more severe strokes (NIHSS ≥ 5) among rivaroxaban patients were half those for warfarin patients (3.19-fold vs 6.37-fold, respectively). Among patients without stroke, costs were similar during the follow-up period between the two treatment groups.
    CONCLUSIONS: Total all-cause costs of care increased in the post-stroke period, and particularly in the patients treated with warfarin relative to those treated with rivaroxaban. The lower rate of stroke in the rivaroxaban cohort suggests that greater pre- to post-stroke cost increases result from more strokes occurring in the warfarin cohort.
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  • 文章类型: Journal Article
    PEX基因的遗传改变导致过氧化物酶体生物发生障碍。在人类中,它们与Zellweger谱系障碍(ZSD)有关。没有经过验证的治疗方法可以改变ZSD令人沮丧的自然史。肝移植(LT)可改善轻度ZSD患者的临床和生化结果。肝细胞移植(HT),开发以克服LT限制,在一个温和的ZSD4岁儿童中进行,短期结果令人鼓舞。这里,我们在Pex1-G844DNMRI小鼠模型中通过脾内输注评估了低剂量(1,250万个肝细胞/kg)和高剂量(5,000万个肝细胞/kg)同系男性HT,该模型概括了轻度ZSD表型.HT在生长迟缓的ZSD小鼠中是可行且安全的。临床(体重和食物摄入量)和生化参数(非常长链脂肪酸,异常胆汁酸,等。)符合ZSD表型,但没有被HT强烈修饰。不出所料,在HT后24小时,在肝脏中检测到三分之一的输注细胞。在7、14和30天后未检测到肝脏或脾脏微嵌合。需要未来的优化来改善Pex1-G844DNMRI小鼠肝脏中的肝细胞移植。小鼠模型表现出ZSD肝脏靶向疗法评估所需的稳健性。
    Genetic alterations in PEX genes lead to peroxisome biogenesis disorder. In humans, they are associated with Zellweger spectrum disorders (ZSD). No validated treatment has been shown to modify the dismal natural history of ZSD. Liver transplantation (LT) improved clinical and biochemical outcomes in mild ZSD patients. Hepatocyte transplantation (HT), developed to overcome LT limitations, was performed in a mild ZSD 4-year-old child with encouraging short-term results. Here, we evaluated low dose (12.5 million hepatocytes/kg) and high dose (50 million hepatocytes/kg) syngeneic male HT via intrasplenic infusion in the Pex1-G844D NMRI mouse model which recapitulates a mild ZSD phenotype. HT was feasible and safe in growth retarded ZSD mice. Clinical (weight and food intake) and biochemical parameters (very long-chain fatty acids, abnormal bile acids, etc.) were in accordance with ZSD phenotype but they were not robustly modified by HT. As expected, one third of the infused cells were detected in the liver 24 h post-HT. No liver nor spleen microchimerism was detected after 7, 14 and 30 days. Future optimizations are required to improve hepatocyte engraftment in Pex1-G844D NMRI mouse liver. The mouse model exhibited the robustness required for ZSD liver-targeted therapies evaluation.
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