SARs

SARS
  • 文章类型: Journal Article
    为了验证在对COVID-19大流行的初始反应期间对严重急性呼吸综合征(SARS)患者的院前评估中获得的数据是否与临床结果相关:机械通气,医院出院,和死亡。这是一项回顾性分析,涉及来自紧急医疗服务(EMS)记录和由马瑙斯EMS协助的患者健康监测信息系统的次要数据,2020年1月至6月,是COVID-19病例的第一个高峰时期。两个数据库的组合产生了总共1.190名患者,他们收到了第一次EMS应答,后来因SARS入院,并有相关临床结果的数据。患者主要为男性(754,63.4%),年龄中位数为66(IQR:54.0-78.0)岁。在医疗援助之前的SARS疾病与需要有创机械通气(IMV,p<0.001)。较低的院前SpO2与死亡相关(p=0.025)。死亡在有呼吸支持需求的患者中更为常见,尤其是有创通气组(262/287;91.3%)(p<0.001)。此外,IMV在老年人群中更为常见(p<0.001)。与未入住ICU的患者相比,入住ICU的患者死亡的可能性更大(p<0.001)。与IMV密切相关(p<0.001)。ICU患者年龄也较大(p=0.003),住院时间较长(p<0.001)。死亡率与机械通气相关(p<0.001),ICU入院(p<0.001),年龄较大(p<0.001)。死亡患者的ICU和总住院时间均较短(p<0.001)。院前EMS可以在紧张的医疗保健系统中提供对SARS重症患者的可行和早期识别,例如在低资源环境和流行病中。
    To verify if data obtained in the prehospital evaluation of patients with severe acute respiratory syndrome (SARS) during the initial response to the COVID-19 pandemic is associated with clinical outcomes: mechanical ventilation, hospital discharge, and death. This is a retrospective analysis involving secondary data from the Emergency Medical Service (EMS) records and the Health Surveillance Information System of patients assisted by the EMS in Manaus, from January to June 2020, the period of the first peak of COVID-19 cases. The combination of the two databases yielded a total of 1.190 patients, who received a first EMS response and were later admitted to hospital with SARS and had data on clinical outcomes of interest available. Patients were predominantly male (754, 63.4%), with a median age of 66 (IQR: 54.0-78.0) years. SARS illness before medical assistance was associated to need for invasive mechanical ventilation (IMV, p < 0.001). Lower pre-hospital SpO2 was associated to death (p = 0.025). Death was more common among patients with respiratory support needs, especially in the invasive ventilation group (262/287; 91.3%) (p < 0.001). In addition, IMV was more common among elderly individuals (p < 0.001). Patients admitted to ICU had a greater chance of dying when compared to non-ICU admitted patients (p < 0.001), and closely related to IMV (p < 0.001). Patients in ICU were also older (p = 0.003) and had longer hospital stay (p < 0.001). Mortality was associated with mechanical ventilation (p < 0.001), ICU admission (p < 0.001), and older age (p < 0.001). Patients who died had a shorter length of both ICU and total hospital stay (p < 0.001). Prehospital EMS may provide feasible and early recognition of critical patients with SARS in strained healthcare systems, such as in low-resource settings and pandemics.
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  • 文章类型: Journal Article
    使用参与性,病毒学,和废水监测系统,我们估计了成人COVID-19病例的报告数据何时以及在多大程度上低估了德国的COVID-19发病率.我们还研究了案例低估是如何随着时间的推移而演变的。我们的发现强调了基于社区的监测系统如何补充呼吸道疾病动态的官方通知系统。
    Using participatory, virologic, and wastewater surveillance systems, we estimated when and to what extent reported data of adult COVID-19 cases underestimated COVID-19 incidence in Germany. We also examined how case underestimation evolved over time. Our findings highlight how community-based surveillance systems can complement official notification systems for respiratory disease dynamics.
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  • 文章类型: Journal Article
    COVID19仍在流行,用它夺走了600多万人的生命,似乎世界将不得不学习如何与病毒共存。因此,有必要针对它开发不同的治疗方法,不仅仅是疫苗,还有新药。要做到这一点,人-病毒蛋白-蛋白相互作用(PPI)在药物靶标发现中起着关键作用,但是通过实验找到它们可能是昂贵的,或者有时是不可靠的。因此,计算方法作为预测这些相互作用的强大替代方案而出现,降低成本,帮助研究人员只确认某些相互作用,而不是在实验室中尝试所有可能的组合。Malivhu是一种使用机器学习模型通过4阶段过程预测人类病毒PPI的工具,第一阶段过滤ssRNA(+)类病毒蛋白,2期过滤冠状病毒科蛋白,3期过滤严重急性呼吸综合征(SARS)和中东呼吸综合征(MERS)物种蛋白,4期预测人-SARS-CoV/SARS-CoV-2/MERS蛋白-蛋白相互作用。模型的性能用马修斯相关系数测量,F1分数,特异性,灵敏度,和准确度得分,准确率为99.07%,99.83%,前三个阶段100%,分别,人-SARS-CoVPPI为94.24%,人-SARS-CoV-2PPI为94.50%,在独立测试中,人类MERSPPI为95.45%。为四个阶段中的每个阶段开发的所有预测模型都作为Web服务器实现,该服务器可在https://kaabil.net/malivhu/上免费获得。
    COVID 19 pandemic is still ongoing, having taken more than 6 million human lives with it, and it seems that the world will have to learn how to live with the virus around. In consequence, there is a need to develop different treatments against it, not only with vaccines, but also new medicines. To do this, human-virus protein-protein interactions (PPIs) play a key part in drug-target discovery, but finding them experimentally can be either costly or sometimes unreliable. Therefore, computational methods arose as a powerful alternative to predict these interactions, reducing costs and helping researchers confirm only certain interactions instead of trying all possible combinations in the laboratory. Malivhu is a tool that predicts human-virus PPIs through a 4-phase process using machine learning models, where phase 1 filters ssRNA(+) class virus proteins, phase 2 filters Coronaviridae family proteins and phase 3 filters severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) species proteins, and phase 4 predicts human-SARS-CoV/SARS-CoV-2/MERS protein-protein interactions. The performance of the models was measured with Matthews correlation coefficient, F1-score, specificity, sensitivity, and accuracy scores, getting accuracies of 99.07%, 99.83%, and 100% for the first 3 phases, respectively, and 94.24% for human-SARS-CoV PPI, 94.50% for human-SARS-CoV-2 PPI, and 95.45% for human-MERS PPI on independent testing. All the prediction models developed for each of the 4 phases were implemented as web server which is freely available at https://kaabil.net/malivhu/.
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  • 文章类型: Journal Article
    目的:SARS-CoV-2大流行对医学生和住院医生来说是一种不稳定的经历,给他们在医院环境中的培训带来了麻烦。这篇叙述性评论旨在确定健康危机对医学学员的学术和个人生活的影响,并制定支持他们的解决方案。
    方法:教育来源,MedLine和PsychInfo于6月30日和12月16日进行了咨询,2020年确定解释SARS-CoV-1(2002)影响的文章,医学学习者的A/H1N1(2009)或SARS-CoV-2(正在进行)。排除标准包括政策文件,给编辑的信或详细说明对本科医学课程影响的文章,关于非医学学员,在居留申请过程中,或者疾病对身体的影响。使用CASP进行定性研究,使用NHLBI-NIH进行横断面研究,对所选论文的质量进行了评估。
    结果:最初生成了94份手稿,其次生成了229份手稿,根据系统评价和荟萃分析指南的首选报告项目,其中14和16项分别纳入最终分析,并进行了定性审查。结果发现,学习者认为他们的教育受到考试延误的影响,暂停学术活动,和选择性手术。与这种学术中断相关的焦虑情绪发展起来。工作量的增加加剧了职业倦怠。两次搜索之间的主要区别是COVID-19的长期影响,包括教学创新的机会,对职业身份形成和心理健康问题发展的担忧。提出的解决方案从持续获取心理健康资源到对学习者的福祉进行跟进。
    结论:评估医学学员的专业和国家发展对他们使用COVID-19的经验的影响将是很有趣的。
    OBJECTIVE: The SARS-CoV-2 pandemic is a destabilizing experience for medical students and resident doctors and troubles their training in the hospital setting. This narrative review aims to identify the effect of health crises on the academic and personal lives of medical trainees and to develop solutions to support them.
    METHODS: EducationSource, MedLine and PsychInfo were consulted on June 30th and December 16th, 2020 to identify the articles explaining the effect of SARS-CoV-1 (2002), A/H1N1 (2009) or SARS-CoV-2 (ongoing) on medical learners. Exclusion criteria included policy papers, letters to the editor or articles detailing the impact on undergraduate medical curricula, on nonmedical trainees, on the residency application process, or the physical impact of the disease. The quality of the selected papers was appraised using CASP for qualitative studies and NHLBI-NIH for cross-sectional studies.
    RESULTS: Ninety-four manuscripts were initially generated and 229, secondarily, of which respectively 14 and 16 were included in the final analysis according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and reviewed qualitatively. It was found that the learners consider their education compromised by exam delays, the suspension of academic activities, and elective surgeries. Anxiety associated with this academic disruption developed. Burnout is exacerbated by the heightened workload. The main difference between the two searches was the long-term effect of COVID-19, including the opportunity for didactic innovation, the worry regarding professional identity formation and the development of mental health issues. The proposed solutions varied from continuous access to mental health resources to the follow-up of learners\' well-being.
    CONCLUSIONS: It would be interesting to assess the impact of medical trainees\' specialty and country\'s development on their experience with COVID-19.
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  • 文章类型: Journal Article
    RNA病毒SARS-CoV,SARS-CoV-2和MERS-CoV编码非结构性Nsp16(2'-O-甲基转移酶),该酶催化甲基从S-腺苷甲硫氨酸(SAM)转移到mRNA中的第一个核糖核苷酸。最近,已经发现,Nsp16和SAM底物之间的键断裂导致mRNA病毒复制的停止。迄今为止,只有有限数量的此类抑制剂被鉴定出来,这可以归因于缺乏有效的“配方”。我们研究的目的是提出并验证专门用于此类目的的快速有效的筛查方案。我们提出了四个描述结构结合强度的新指标(结构结合亲和力,结构-氢键,然后应用结构-空间和结构-蛋白质-配体指数),并显示出非常有助于确定响应于配体结构相对较小的变化而增加或减少结合亲和力的程度。经过初步的预选,基于与SAM的相似性,我们将研究限于967种化合物,所谓的分子变色龙。然后将它们停靠在Nsp16蛋白质口袋中,使用新的结构结合亲和力指数选择10个候选配体。随后,将所选择的10个候选配体和8种已知的抑制剂对接至来自SARS-CoV-2、MERS-CoV和SARS-CoV的Nsp16口袋。根据四个新指数,选择了最好的配体,并通过调整它们设计了一个新的配体。最后,对最佳配体进行了ADMET分析和分子动力学模拟。新的结构结合强度指数不仅可以成功地用于筛选和调整配体,而且还要确定配体对目标病毒实体变化的反应的有效性,这对于在病毒蛋白改变的情况下评估药物有效性特别有用。开发的方法,所谓的变色龙策略,有能力将一种新的通用范式引入药物设计领域,包括RNA抗病毒药物.
    The RNA viruses SARS-CoV, SARS-CoV-2 and MERS-CoV encode the non-structural Nsp16 (2\'-O-methyltransferase) that catalyzes the transfer of a methyl group from S-adenosylmethionine (SAM) to the first ribonucleotide in mRNA. Recently, it has been found that breaking the bond between Nsp16 and SAM substrate results in the cessation of mRNA virus replication. To date, only a limited number of such inhibitors have been identified, which can be attributed to a lack of an effective \"recipe\". The aim of our study was to propose and verify a rapid and effective screening protocol dedicated to such purposes. We proposed four new indices describing structure-binding strength (structure-binding affinity, structure-hydrogen bonding, structure-steric and structure-protein-ligand indices) were then applied and shown to be extremely helpful in determining the degree of increase or decrease in binding affinity in response to a relatively small change in the ligand structure. After initial pre-selection, based on similarity to SAM, we limited the study to 967 compounds, so-called molecular chameleons. They were then docked in the Nsp16 protein pocket, and 10 candidate ligands were selected using the novel structure-binding affinity index. Subsequently the selected 10 candidate ligands and 8 known inhibitors and were docked to Nsp16 pockets from SARS-CoV-2, MERS-CoV and SARS-CoV. Based on the four new indices, the best ligands were selected and a new one was designed by tuning them. Finally, ADMET profiling and molecular dynamics simulations were performed for the best ligands. The new structure-binding strength indices can be successfully applied not only to screen and tune ligands, but also to determine the effectiveness of the ligand in response to changes in the target viral entity, which is particularly useful for assessing drug effectiveness in the case of alterations in viral proteins. The developed approach, the so-called chameleon strategy, has the capacity to introduce a novel universal paradigm to the field of drugs design, including RNA antivirals.
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  • 文章类型: Journal Article
    在COVID-19大流行之前,肺炎支原体感染在台湾每年春季至夏季出现,但是在大流行期间感染很少。肺炎支原体大环内酯耐药性在2020年飙升至85.7%,但在2022-2023年期间下降至0%。持续的分子监测对于监测大环内酯耐药肺炎支原体的趋势是必要的。
    Before the COVID-19 pandemic, Mycoplasma pneumoniae infections emerged during spring to summer yearly in Taiwan, but infections were few during the pandemic. M. pneumoniae macrolide resistance soared to 85.7% in 2020 but declined to 0% during 2022-2023. Continued molecular surveillance is necessary to monitor trends in macrolide-resistant M. pneumoniae.
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  • 文章类型: Journal Article
    SARS-CoV-2可以感染野生动物,值得关注的SARS-CoV-2变体可能会扩展到新的动物水库,可能是反向人畜共患病。北美的白尾鹿和骡鹿是唯一有SARS-CoV-2文献记载的鹿种,提出了是否存在其他水库物种的问题。我们报告了位于都柏林的休养鹿种群中SARS-CoV-2血清阳性的病例,爱尔兰。2020年,当Alpha变体在人类中循环时,采样的鹿是血清阴性的,2021年,1只鹿对Delta变体呈血清阳性,2022年,12/21(57%)的鹿对Omicron变体呈血清阳性,这表明随着人类新变体的出现,宿主嗜性扩大。OmicronBA.1能够体外感染休鹿肺2型肺细胞和1型样肺细胞或内皮细胞。需要进行持续的监测以识别新型的SARS-CoV-2水库,以防止在城市环境中人与动物相互作用期间的公共卫生风险。
    SARS-CoV-2 can infect wildlife, and SARS-CoV-2 variants of concern might expand into novel animal reservoirs, potentially by reverse zoonosis. White-tailed deer and mule deer of North America are the only deer species in which SARS-CoV-2 has been documented, raising the question of whether other reservoir species exist. We report cases of SARS-CoV-2 seropositivity in a fallow deer population located in Dublin, Ireland. Sampled deer were seronegative in 2020 when the Alpha variant was circulating in humans, 1 deer was seropositive for the Delta variant in 2021, and 12/21 (57%) sampled deer were seropositive for the Omicron variant in 2022, suggesting host tropism expansion as new variants emerged in humans. Omicron BA.1 was capable of infecting fallow deer lung type-2 pneumocytes and type-1-like pneumocytes or endothelial cells ex vivo. Ongoing surveillance to identify novel SARS-CoV-2 reservoirs is needed to prevent public health risks during human-animal interactions in periurban settings.
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  • 文章类型: Systematic Review
    COVID-19大流行在21世纪引起了一次重大爆发,并在全球范围内导致了重大的精神健康危害。为了解决这个问题,已经进行了系统评价,以分析关于COVID-19对普通人群心理健康影响的现有文献,以及相关的危险因素。
    在PubMed上进行了全面搜索,Embase,Medline,WebofScience,和Scopus数据库,涵盖所有可用的文献,直到2024年2月20日。这项搜索是根据PRISMA指南进行的,确保系统的方法。根据预定的资格标准选择文章,确保纳入适当和适当的研究。归根结底,共15篇关注抑郁和焦虑的文章,关于压力的11篇文章,包括7篇关于心理问题的文章。这些文章专门研究了英语语言和特定领域的结果变量。对于孕产妇保健服务的荟萃分析,计划生育有11条,25篇关于产后护理服务的文章,关于机构交付的16条,和14篇关于安全堕胎服务的文章。仔细选择这些文章进行最终的汇总分析。
    根据最近的系统评价,焦虑,抑郁症,压力,在COVID-19大流行期间,埃塞俄比亚普遍存在心理困扰,比率为40%、41%、23%和41%,分别。审查还确定了影响该国应对大流行的各种社会人口因素,包括女性,年龄,婚姻状况,监禁,低收入,缺乏社会支持。此外,审查发现,在大流行期间,孕产妇保健服务大幅减少。
    COVID-19大流行导致心理困扰显着增加,在某些情况下,严重到需要临床治疗.将解决COVID-19对精神健康的负面影响作为全球公共卫生优先事项至关重要。此外,在COVID-19缓解计划期间,重要的是要注意孕产妇保健服务。
    UNASSIGNED: The COVID-19 pandemic has caused a major outbreak in the 21st century and has led to significant mental health hazards worldwide. To address this issue, a systematic review has been conducted to analyze existing literature on the impact of COVID-19 on the psychological well-being of the general population, as well as the associated risk factors.
    UNASSIGNED: A comprehensive search was carried out on PubMed, Embase, Medline, Web of Science, and Scopus databases, covering all available literature up until February 20, 2024. This search was conducted in accordance with the PRISMA guidelines, ensuring a systematic approach. The selection of articles was based on predetermined eligibility criteria, ensuring the inclusion of appropriate and suitable research. In the final analysis, a total of 15 articles focusing on depression and anxiety, 11 articles on stress, and 7 articles on psychological problems were included. These articles specifically examined the outcome variables within the context of English language and specific areas. For the meta-analysis on maternal health services, 11 articles were included for family planning, 25 articles for postnatal care services, 16 articles for institutional delivery, and 14 articles for safe abortion services. These articles were carefully selected for the final pooled analysis.
    UNASSIGNED: According to a recent systematic review, anxiety, depression, stress, and psychological distress have been prevalent in Ethiopia during the COVID-19 pandemic, with rates of 40, 41, 23, and 41%, respectively. The review also identified various sociodemographic factors that have impacted the country\'s response to the pandemic, including female gender, age, marital status, incarceration, low income, and lack of social support. Furthermore, the review found that maternal health services have experienced significant reductions during the pandemic.
    UNASSIGNED: The COVID-19 pandemic has led to a significant increase in psychological distress, which in some cases, is severe enough to require clinical treatment. It is crucial to prioritize efforts to address the negative impact of COVID-19 on mental health as a global public health priority. Additionally, it is important to pay attention to maternal health services during COVID-19 mitigation programs.
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  • 文章类型: Journal Article
    新冠状病毒的出现,导致SARS-CoV-2大流行,自2019年下半年成立以来,已经对世界范围内的健康造成了巨大的危害。SARS-CoV-2的再感染或共感染的发生加剧了当前大流行的严重程度。因此,理解脓毒症病理生理学的分子过程和辨别治疗干预可能的分子靶点具有重要意义.第一次,通过GC-MS分析,初步鉴定了31种代谢产物。另一方面,在HPLC-DAD分析中,从植物中鉴定并定量了五种酚类化合物,包括(-)表儿茶素,芦丁水合物,迷迭香酸,槲皮素,还有山奈酚.9种GC-MS和5种HPLC鉴定的代谢物与45种和30种COVID-19相关的人类蛋白相互作用,分别。在蛋白质中,PARP1,FN1,PRKCA,EGFR,ALDH2,AKR1C3,AHR,和IKBKB已被发现是减轻SARS-CoV-2感染的潜在治疗靶标。KEGG通路分析还显示FN1、EGFR、和IKBKB基因具有SARS-CoV-2病毒复制和由于病毒感染引起的细胞因子过度表达。蛋白-蛋白相互作用(PPI)分析还显示TP53、MMP9、FN1、EGFR、NOS2蛋白与COVID-19合并症相关基因高度相关。这些蛋白质也显示出与植物植物成分的相互作用。由于这项研究提供了一个强大的基于网络的程序来识别与COVID-19疾病相关的生物分子,马六甲可能是对抗COVID-19和相关病毒性疾病的有效治疗剂的良好来源。
    The advent of the new coronavirus, leading to the SARS-CoV-2 pandemic, has presented a substantial worldwide health hazard since its inception in the latter part of 2019. The severity of the current pandemic is exacerbated by the occurrence of re-infection or co-infection with SARS-CoV-2. Hence, comprehending the molecular process underlying the pathophysiology of sepsis and discerning possible molecular targets for therapeutic intervention holds significant importance. For the first time, 31 metabolites were tentatively identified by GC-MS analysis from Alpinia malaccensis. On the other hand, five phenolic compounds were identified and quantified from the plant in HPLC-DAD analysis, including (-) epicatechin, rutin hydrate, rosmarinic acid, quercetin, and kaempferol. Nine GC-MS and five HPLC-identified metabolites had shown interactions with 45 and 30 COVID-19-associated human proteins, respectively. Among the proteins, PARP1, FN1, PRKCA, EGFR, ALDH2, AKR1C3, AHR, and IKBKB have been found as potential therapeutic targets to mitigate SARS-CoV-2 infection. KEGG pathway analysis also showed a strong association of FN1, EGFR, and IKBKB genes with SARS-CoV-2 viral replication and cytokine overexpression due to viral infection. Protein-protein interaction (PPI) analysis also showed that TP53, MMP9, FN1, EGFR, and NOS2 proteins are highly related to the genes involved in COVID-19 comorbidity. These proteins showed interaction with the plant phytoconstituents as well. As the study offers a robust network-based procedure for identifying biomolecules relevant to COVID-19 disease, A. malaccensis could be a good source of effective therapeutic agents against COVID-19 and related viral diseases.
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  • 文章类型: Journal Article
    我们描述了5名患有落基山斑疹热(RMSF)并表现出类似于索诺拉多系统炎症综合征的临床症状的儿童,墨西哥,RMSF是高流行的。医师应在多系统炎症综合征住院患者的鉴别诊断中考虑RMSF,以预防立克次体疾病引起的疾病和死亡。
    We describe 5 children who had Rocky Mountain spotted fever (RMSF) and manifested clinical symptoms similar to multisystem inflammatory syndrome in Sonora, Mexico, where RMSF is hyperendemic. Physicians should consider RMSF in differential diagnoses of hospitalized patients with multisystem inflammatory syndrome to prevent illness and death caused by rickettsial disease.
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