potential treatment

潜在治疗
  • 文章类型: Journal Article
    背景:伤口的适当护理和治疗是小时的需要,无论是感染的还是未感染的伤口。如果伤口愈合由于某种原因而延迟,它会导致严重的并发症,并进一步增加住院时间和治疗费用。在这里,我们描述了一种新型抗菌伤口敷料配方(VG111),目的是产生显示不同类型伤口的独特优势的初步数据。
    方法:本病例系列涉及不同病因患者对VG111常规伤口愈合治疗反应不佳的急性伤口或慢性伤口的治疗。13例患者包括糖尿病患者,压疮,烧伤,创伤,在所有情况下,用VG111治疗的其他患者均显示出快速的伤口愈合,甚至在发生完全皮肤再生时无需移植。
    结果:通过清除伤口感染来说明,渗出物的减少/消失,强烈造粒的外观,上皮化,和抗生物膜活性,然后完全闭合伤口。这种VG111排除了局部感染对全身抗菌药物的需要,这种单一的代理是试图解决现有产品的局限性和缺点。
    结论:尽管患者属于老年组,有糖尿病等合并症,VG111仍然显示出有效的快速伤口愈合,而且在难以治愈的情况下也没有任何疤痕形成,感染,和未感染的伤口。

    Introduction: Appropriate care and treatment of a wound is the need of the hour whether it is an infected or a non-infected wound. If wound healing is delayed for some reason, it leads to serious complications and further increases the hospital stay and cost of treatment. Herein, we describe a novel antimicrobial wound dressing formulation (VG111), with an objective to generate the preliminary data showing the distinct advantages in various types of wounds.

    Method: This case series involved the treatment of acute cases of wounds or chronic wounds that did not respond well to conventional wound healing treatments with VG111 in patients with different etiologies. Thirteen cases of patients that included patients with diabetes, pressure ulcers, burns, trauma, and others treated with VG111 showed rapid wound healing in all the cases, even obviating the need for a graft when complete skin regeneration occurred.

    Result: This was illustrated by clearing of the wound infections, reduction/disappearance of the exudate, appearance of intense granulation, epithelialization, and anti-biofilm activity followed by complete wound closure. This VG111 precludes the need for systemic antimicrobial agents in localized infections and therefore, this single agent is an attempt to address the limitations and the drawbacks of the available products.

    Conclusion: Despite patients belonging to the old age group and having comorbidities like diabetes, still VG111 showed effective rapid wound healing, and that too without any scar formation in hardto- heal, infected, and non-infected wounds.

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  • 文章类型: Journal Article
    当活性氧(ROS)的产生超负荷超过还原性变阻器的容量时,哺乳动物细胞经历一系列氧化损伤称为氧化应激(OS)。这种现象在许多人类病理状况中普遍存在。伤口愈合程序涉及持续的新生血管形成,细胞增殖,和伤口重塑。越来越多的证据表明,活性氧(ROS)通过调节一系列生理和病理程序,包括炎症反应,对伤口愈合过程产生深远的影响。细胞增殖,血管生成,肉芽以及细胞外基质的形成。在大多数病理性伤口愈合过程中,过量的ROS对伤口愈合过程起着负面作用。有趣的是,ROS水平的适度增加有利于杀死伤口部位的细菌,为血运重建创造了一个无菌的生态位。在这次审查中,我们讨论了伤口愈合的生理节律和ROS在这一进程中的作用,旨在探索OS作为一种有前途的治疗途径的潜在操作。
    When the production of reactive oxygen species (ROS) is overloaded surpassing the capacity of the reductive rheostat, mammalian cells undergo a series of oxidative damage termed oxidative stress (OS). This phenomenon is ubiquitously detected in many human pathological conditions. Wound healing program implicates continuous neovascularization, cell proliferation, and wound remodeling. Increasing evidence indicates that reactive oxygen species (ROS) have profound impacts on the wound healing process through regulating a series of the physiological and pathological program including inflammatory response, cell proliferation, angiogenesis, granulation as well as extracellular matrix formation. In most pathological wound healing processes, excessive ROS exerts a negative role on the wound healing process. Interestingly, the moderate increase of ROS levels is beneficial in killing bacteria at the wound site, which creates a sterile niche for revascularization. In this review, we discussed the physiological rhythms of wound healing and the role of ROS in this progress, aim to explore the potential manipulation of OS as a promising therapeutic avenue.
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  • 文章类型: Journal Article
    目的:嵌合抗原受体(CAR)T细胞疗法彻底改变了各种B细胞恶性肿瘤的治疗方法。然而,它可以引起严重的不良反应,如免疫效应细胞相关神经毒性综合征(ICANS)。ICANS归因于由于炎性细胞因子和脑脊液(CSF)中免疫效应细胞(IEC)水平升高而导致的血脑屏障破坏。皮质类固醇和支持性管理是ICANS治疗的支柱。然而,目前尚无治疗类固醇难治性ICANS的指南.一些报告显示,在接受鞘内(IT)化疗的类固醇难治性ICANS患者中,没有长期并发症。
    方法:我们描述了两名接受IT化疗的类固醇难治性ICANS患者的结局。两名患者均患有难治性大B细胞淋巴瘤,不适合自体移植。他们在CART细胞输注后开发了类固醇难治性ICANS。使用12mg甲氨蝶呤和50mg氢化可的松进行IT化疗可迅速改善两名患者的神经系统。其中一人因其他多种合并症去世,另一个病人继续做得很好,没有任何并发症。
    结论:根据我们的经验,IT化疗可以被认为是治疗类固醇难治性ICANS的潜在方法。需要前瞻性研究来验证这种方法。
    OBJECTIVE: Chimeric antigen receptor (CAR) T-cell therapy has revolutionized the treatment of various B-cell malignancies. However, it can cause serious adverse effects like immune effector cell-associated neurotoxicity syndrome (ICANS). ICANS is attributed to disruption of the blood-brain barrier due to inflammatory cytokines and increased levels of immune effector cells (IECs) in the cerebrospinal fluid (CSF). Corticosteroids and supportive management are the mainstays of ICANS treatment. However, no guidelines exist for the treatment of steroid-refractory ICANS. Some reports have shown favorable outcomes with no long-term complications in patients with steroid-refractory ICANS treated with intrathecal (IT) chemotherapy.
    METHODS: We describe the outcomes of two patients with steroid-refractory ICANS treated with IT chemotherapy. Both patients had refractory large B-cell lymphoma and were not candidates for autologous transplant. They developed steroid-refractory ICANS after CAR T-cell infusion. IT chemotherapy with 12 mg methotrexate and 50 mg hydrocortisone resulted in prompt neurological improvement in both patients. One of them passed away due to multiple other comorbidities, and the other patient continues to do well without any complications.
    CONCLUSIONS: IT chemotherapy could be considered as a potential approach for the management of steroid-refractory ICANS based on our experience. Prospective studies are needed to validate this approach.
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  • 文章类型: Journal Article
    鉴于成千上万的感染和死亡,世界卫生组织(WHO)宣布冠状病毒病(COVID-19)的爆发是全球大流行。它已经传播到全世界大约2200万人,总共有45万人过期,在过去的6个月中限制了全球大多数人的行动。然而,COVID-19成为最重要的健康,经济,和二十一世纪的人道主义挑战。旨在遏制COVID-19大流行的措施包括旅行禁令,封锁,以及通过避难所命令的社会距离,这将进一步突然停止人类活动,并最终影响世界和国民经济。病毒性疾病是由严重急性呼吸道综合症冠状病毒2(SARS-CoV-2)引起的。在SARS-CoV-2病毒和中东呼吸综合征(MERS)相关的CoV之后,COVID-19是人类第三大致命疾病。根据WHO,自从COVID-19被宣布为国际公共卫生紧急情况以来,COVID-19的死亡率超过了SARS和MERS的死亡率。基因测序最近确定,COVID-19与SARS-CoV和蝙蝠冠状病毒接近,后者尚未被认为是这次大流行爆发的关键原因,它的传输,和人类病原体机制。这篇综述的重点是简要介绍新型冠状病毒病原体,包括人类和动物身上的冠状病毒,它的分类学分类,症状,致病性,社会影响,经济影响,以及COVID-19的潜在治疗疗法。
    In the light of thousands of infections and deaths, the World Health Organization (WHO) has declared the outbreak of coronavirus disease (COVID-19) a worldwide pandemic. It has spread to about 22 million people worldwide, with a total of 0.45 million expiries, limiting the movement of most people worldwide in the last 6 months. However, COVID-19 became the foremost health, economic, and humanitarian challenge of the twenty-first century. Measures intended to curb the pandemic of COVID-19 included travel bans, lockdowns, and social distances through shelter orders, which will further stop human activities suddenly and eventually impact the world and the national economy. The viral disease is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). After SARS-CoV-2 virus and Middle East respiratory syndrome (MERS)-related CoV, COVID-19 is the third most significant lethal disease to humans. According to WHO, COVID-19 mortality exceeded that of SARS and MERS since COVID-19 was declared an international public health emergency. Genetic sequencing has recently established that COVID-19 is close to SARS-CoV and bat coronavirus which has not yet been recognized as the key cause of this pandemic outbreak, its transmission, and human pathogen mechanism. This review focuses on a brief introduction of novel coronavirus pathogens, including coronavirus in humans and animals, its taxonomic classification, symptoms, pathogenicity, social impact, economic impact, and potential treatment therapy for COVID-19.
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  • 文章类型: Journal Article
    脑卒中是成人致残和死亡的主要原因。然而,治疗选择仍然有限。许多途径是脑组织对中风的急性反应的基础。缺血性损伤后的早期事件包括活性氧(ROS)介导的氧化应激和谷氨酸诱导的兴奋性毒性,两者都有助于梗死核心内的细胞快速死亡。随后的炎症事件级联使损伤进展升级。这篇综述探讨了针对缺血再灌注(I/R)损伤级联的关键步骤的潜在神经保护策略。NADPH氧化酶(NOX)抑制剂和目前由美国食品和药物管理局批准的几种药物,包括降糖药,抗生素,免疫调节剂,在动物实验和临床试验中都显示出治疗中风的希望。缺血调理,一个器官或组织的短期亚致死性缺血的一个或多个周期保护另一个器官免受随后的缺血事件的现象,通过靶向I/R损伤级联中的关键步骤,可能是治疗中风的另一种潜在的神经保护策略。
    Stroke is a major cause of death and adult disability. However, therapeutic options remain limited. Numerous pathways underlie acute responses of brain tissue to stroke. Early events following ischemic damage include reactive oxygen species (ROS)-mediated oxidative stress and glutamate-induced excitotoxicity, both of which contribute to rapid cell death within the infarct core. A subsequent cascade of inflammatory events escalates damage progression. This review explores potential neuroprotective strategies for targeting key steps in the cascade of ischemia-reperfusion (I/R) injury. NADPH oxidase (NOX) inhibitors and several drugs currently approved by the U.S. Food and Drug Administration including glucose-lowering agents, antibiotics, and immunomodulators, have shown promise in the treatment of stroke in both animal experiments and clinical trials. Ischemic conditioning, a phenomenon by which one or more cycles of a short period of sublethal ischemia to an organ or tissue protects against subsequent ischemic events in another organ, may be another potential neuroprotective strategy for the treatment of stroke by targeting key steps in the I/R injury cascade.
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  • 文章类型: Journal Article
    A novel potential treatment technique applied to a glucose biosensor that is based on pyrroloquinoline quinone (PQQ)-dependent glucose dehydrogenase (GDH) and chromium hexacyanoferrate (CrHCF) incorporated into a platinum (Pt) electrode was demonstrated. CrHCF, serving as a mediator, was electrochemically deposited on the Pt electrode as ascertained by CV, SEM, FTIR and XPS measurements. The potential treatment of CrHCF, which converts Fe(II) to Fe(III), enables the glucose detection. The amperometric measurement linearity of the biosensor was up to 20 mM (R = 0.9923), and the detection sensitivity was 199.94 nA/mM per cm(2). More importantly, this biosensor remained stable for >270 days.
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