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Heart rate variability and heart rate under general anesthesia in rats of both sexes 男女大鼠在全身麻醉下的心率变异性和心率
Pub Date : 2021-01-01 DOI: 10.15761/TIM.1000257
P. Švorc, D. Petrášová
General anesthesia is known to potentiate parasympathetic activity and weaken sympathetic and baroreflex activity [1]. These effects should be avoided as much as possible because it limits a subject's ability to respond to physiological perturbations during surgery [2]. Therefore, the choice of anesthetic is very important and, no less important, is to know to what extent the tone of the autonomic nervous system (ANS) is affected under general anesthesia and the potential impact on the cardiovascular system, which is primarily under ANS control.
全身麻醉可以增强副交感神经活动,减弱交感神经和压力反射活动[1]。这些影响应尽可能避免,因为它限制了受试者在手术期间对生理扰动的反应能力[2]。因此,麻醉剂的选择非常重要,同样重要的是了解全身麻醉下自主神经系统(ANS)的张力受到多大程度的影响,以及对主要受ANS控制的心血管系统的潜在影响。
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引用次数: 2
Hydroxychloroquine as post-exposure prophylaxis for Covid-19: Why simple data analysis can lead to the wrong conclusions from well-designed studies 羟氯喹作为Covid-19暴露后预防措施:为什么简单的数据分析可能从设计良好的研究中得出错误的结论
Pub Date : 2021-01-01 DOI: 10.15761/tim.1000268
Juan M. Luco
Researchers of the University Minnesota School reported the first prospective randomized placebo-controlled trial (RCT) in evaluating the role of hydroxychloroquine (HCQ) as post-exposure prophylaxis (PEP) against COVID‐19. The trial's primary result reported by the authors was that, within four days after moderate or high-risk exposure to Covid-19, HCQ did not show benefit over placebo to prevent illnesses compatible with Covid-19 or confirmed infection (P=0.351, Fisher exact test). In this re-analysis, we show why the authors’ oversimplified analysis led to an incorrect conclusion from the data. We re-analyzed the dataset by applying multiple correspondence analysis (MCA) and hierarchical cluster analysis (HCA), which are noise reduction methods used in large data sets. We used the same primary outcome measures as the authors (incidence of COVID-19-compatible disease by day 14) and the same statistical test that the authors used, such as the two-sided Fisher's exact test and others. The results obtained indicate that the individuals' age is a determining factor in the chemopreventive efficacy exerted by HCQ. Thus, in contradiction to the original authors' conclusions, the full data set's risk analysis shows that HCQ exhibits a chemopreventive effect for the group of subjects of ≤ 50 yrs that does not reach significance (P=0.083). However, not considering the analysis of the moderate-risk exposure group, we confirm that the high-risk exposure group (N=719) demonstrates a significant effect of HCQ in the under 50 age group (p=0.025). We also show, using MCA and the Mantel test, systematic differences between the treatment and placebo groups in their clinical characteristics, specifically asthma, and other-comorbidities which act as confounders that add noise to the data, such that the genuine effect of the drug is not seen in a standard analysis. After correcting these differences, the risk analysis showed that HCQ is also useful as a prophylactic agent for people over 50 years of age. This study, therefore, provides evidence of the necessity for higher-order analytics (such as MCA) in the presence of large data sets that include unknown confounders. In this case, it shows that the published conclusion of the group – that HCQ does not prevent COVID-type infective symptoms – was fundamentally flawed and should be reconsidered.
明尼苏达大学学院的研究人员报告了第一项前瞻性随机安慰剂对照试验(RCT),以评估羟氯喹(HCQ)作为暴露后预防(PEP)对抗COVID - 19的作用。作者报告的试验的主要结果是,在中等或高风险暴露于Covid-19后四天内,HCQ在预防与Covid-19相容的疾病或确诊感染方面没有比安慰剂更好的效果(P=0.351, Fisher精确检验)。在这次重新分析中,我们展示了为什么作者的过度简化的分析导致了数据的错误结论。我们通过多重对应分析(MCA)和层次聚类分析(HCA)重新分析了数据集,这是大数据集中常用的降噪方法。我们使用了与作者相同的主要结局指标(第14天covid -19相容疾病的发病率)和作者使用的相同统计检验,如双侧Fisher精确检验等。结果表明,个体年龄是影响HCQ化学预防效果的决定性因素。因此,与原作者的结论相反,完整数据集的风险分析显示,HCQ在≤50岁的受试者组中具有化学预防作用,但没有达到显著性(P=0.083)。然而,不考虑中等风险暴露组的分析,我们证实,在50岁以下年龄组中,高危暴露组(N=719)对HCQ有显著影响(p=0.025)。我们还显示,使用MCA和Mantel测试,治疗组和安慰剂组在临床特征上的系统差异,特别是哮喘和其他合并症,这些合并症作为混杂因素,给数据增加了噪音,因此在标准分析中看不到药物的真正效果。在纠正了这些差异之后,风险分析表明,HCQ对于50岁以上的人也是一种有效的预防剂。因此,本研究提供了在包含未知混杂因素的大型数据集存在时进行高阶分析(如MCA)的必要性的证据。在这种情况下,这表明该小组发表的结论——HCQ不能预防covid - 19型感染症状——存在根本性缺陷,应予以重新考虑。
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引用次数: 3
Two instruments for evaluating pain and stress experienced by premature infants: the newborn infant parasympathetic evaluation (NIPE) index vs. the premature infant pain profile (PIPP) 两种评估早产儿疼痛和压力的工具:新生儿副交感神经评价(NIPE)指数与早产儿疼痛概况(PIPP)
Pub Date : 2021-01-01 DOI: 10.15761/tim.1000284
U. J, Campos-Martinez A, F. E, R. A, Garcia-Serrano Jl
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引用次数: 0
Gender differences in airways diseases 呼吸道疾病的性别差异
Pub Date : 2021-01-01 DOI: 10.15761/tim.1000265
O. Carvalho
The worldwide clinical data show gender differences in the morbidity and mortality rates of some airway diseases, such as asthma, CF or COPD. For unknown reasons women exhibit a higher risk factor to develop and have worse clinical evolution in some inflammatory lung diseases. Understanding the reasons underlying this gender disparity renewed the researcher’s interest in this multifactorial process in which psychological, genetics and sex hormones play important key roles. This article, review the related scientific data to better understand the mechanisms behind gender disparities in some airway diseases, which could be a useful tool for earlier diagnosis, improving therapeutics interventions and better outcome in some respiratory diseases.
世界范围内的临床数据显示,一些呼吸道疾病,如哮喘、CF或COPD,在发病率和死亡率方面存在性别差异。由于未知的原因,女性在某些炎症性肺部疾病中表现出更高的发展风险因素和更差的临床进展。了解了这种性别差异背后的原因后,研究人员对心理、遗传和性激素起着重要作用的多因素过程重新产生了兴趣。本文综述了相关的科学数据,以更好地了解某些呼吸道疾病的性别差异背后的机制,为某些呼吸道疾病的早期诊断、改进治疗干预和改善预后提供有用的工具。
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引用次数: 0
Resting state fMRI and psychiatric assessment after Freemasonry ceremony to get fellowcraft passing degree in a female: Follow up study 一名女性共济会会员获得联会学位后静息状态功能磁共振成像及精神评估:后续研究
Pub Date : 2021-01-01 DOI: 10.15761/tim.1000276
José Luis Mosso Vázquez, Carlos Jesús Castañeda González, Dejanira Mosso Lara, Julián Sánchez Cortázar, R.A. Carrillo Mezo, Oscar René Marrufo Meléndez, Mayra Ortiz Givaundan, Yolanda Tovar Ortega, I. Miller, M. Wiederhold, B. Wiederhold
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引用次数: 0
Risk mapping of the management of a hemodialysis patient with Covid-19 in the hemodialysis department of a Moroccan hospital 摩洛哥一家医院血液透析科对一名Covid-19血液透析患者的管理风险制图
Pub Date : 2021-01-01 DOI: 10.15761/tim.1000280
Ahizoune S, B. R, El Hiyani M, Alaoui Am
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引用次数: 0
Cross-Cultural adaptation, translation, and Moroccan validation of caregiver Oncology Quality of Life (CarGoQoL) questionnaire 护理人员肿瘤生活质量(CarGoQoL)问卷的跨文化适应、翻译和摩洛哥验证
Pub Date : 2020-08-03 DOI: 10.21203/rs.3.rs-42616/v1
Aitouma Ahlam, M’rabti Hind, Haddou Rahou Bouchra, Razine Rachid, Errihani Hassan
ObjectiveThe aim of this study is to validate the Moroccan version of The Caregivers Oncology Quality of Life (CarGoQol) questionnaire to measure the caregiver’s quality of life of palliative cancer patients in Morocco.ResultsThe psychometric properties of CarGoQoL were generally good. A Cronbachα coefficient of 0.82 was obtained indicating a good internal consistency except for the private life dimension (α = 0.14). A good reliability of the test re-test was also observed, with an item internal consistency of 0.9. Missing data and ceiling effect were low; some ceiling effects were observed for Relationship with healthcare (38.9%); correlations were confirmed between the different dimensions that corresponding to the same domain; significant association was identified for caregiver and patient characteristics.
目的本研究的目的是验证摩洛哥版的护理人员肿瘤生活质量(CarGoQol)问卷,以衡量摩洛哥姑息性癌症患者的护理人员生活质量。结果CarGoQoL的心理测量学性质总体较好。cronbach - α系数为0.82,表明除了私生活维度(α = 0.14)外,内部一致性较好。测试重测的信度也很好,项目内部一致性为0.9。缺失数据和天花板效应较低;在与医疗保健的关系中观察到一些天花板效应(38.9%);证实了对应于同一域的不同维度之间的相关性;护理人员和患者特征之间存在显著关联。
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引用次数: 0
The impact of kinesiology tape application on the volume of interstitial space over the gastrocnemius within healthy mixed-gender participants using ultrasonography 应用运动机能学胶带对健康男女混合受试者腓肠肌间隙体积的影响
Pub Date : 2020-03-30 DOI: 10.15761/tim.1000224
Alannah Jennifer Guy, K. Papadopoulos
Purpose: The purpose of this study was to analyze the impact of kinesiology tape application on the volume of interstitial space over the gastrocnemius within healthy mixed gender participants using diagnostic ultrasound. Materials/methods: A lab-based experiment was conducted involving thirty healthy participants 26.5 ± 8.5 who volunteered to take part in this study with no previous injuries. Participants were randomly allocated to either the kinesiology group, Zinc-oxide or no tape group. Kinesiology tape was applied through the “I Strip” technique. Each application comprised of a 10 cm piece of tape applied at the mid-point of the gastrocnemius, at a 50% stretch (7.5 cm each side). The interstitial space was recorded at this point using the Real Time Diagnostic Biosound Ultrasound machine. The tape was applied for twenty-four hours and the interstitial space was re-measured. Same methodology was repeated for those in the Zinc-oxide and the no tape group. Results: A one-way repeated measures ANOVA test reported a significant difference in the volume of interstitial space between the no tape and KT group and the KT and Zinc oxide group for both initial and 24-hour readings (p=0.002, p≤0.000). Paired t-tests between the initial and after 24-hours readings revealed no significant differences showing that there was no further increase of the interstitial space after 24 hours. Conclusions: The application of the kinesiology tape increases the interstitial space within healthy participants a twenty-four hour application. Further research should take place in relation to the different applied tensions of the tape and the impact this has upon the volume of interstitial space.
目的:本研究的目的是利用超声诊断分析运动机能学胶带对健康男女混合受试者腓肠肌间隙体积的影响。材料/方法:30名年龄26.5±8.5岁的健康志愿者自愿参加本研究,既往无损伤。参与者被随机分配到运动机能学组、氧化锌组或无胶带组。运动机能学磁带通过“I条”技术应用。每次应用包括在腓肠肌中点应用10厘米的胶带,拉伸50%(每边7.5厘米)。此时使用实时诊断生物超声仪记录间质间隙。胶带敷敷24小时,重新测量间隙。同样的方法被重复用于氧化锌组和无胶带组。结果:单向重复测量方差分析检验报告了初始和24小时读数中,无胶带组和KT组以及KT组和氧化锌组之间的间隙体积有显著差异(p=0.002, p≤0.000)。配对t检验显示,24小时后的初始读数和24小时后的读数没有显著差异,表明24小时后间质空间没有进一步增加。结论:运动机能带的应用在24小时内增加了健康参与者的间隙。进一步的研究应涉及不同的应用张力的磁带和影响,这对间隙空间的体积。
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引用次数: 0
Virulence-associated chromosome locus J, VacJ, an outer membrane lipoprotein elicits protective immunity against Acinetobacter baumannii infection in mice 毒力相关染色体位点J (VacJ)是一种外膜脂蛋白,可引起小鼠对鲍曼不动杆菌感染的保护性免疫
Pub Date : 2020-01-01 DOI: 10.15761/TIM.1000236
Saeideh Masoumkhani, S. D. A. Astaneh, Abolfazl Jahangiri, I. Rasooli
Acinetobacter baumannii is a Gram-negative, strictly aerobic nonmotile bacterium with a DNA G-C content of 39% to 47%. A. baumannii is an important opportunistic nosocomial pathogen that causes pneumonia, bacteremia, urinary tract infections, meningitis, skin, and soft tissue infections. The major concern about A.baumannii is the emergence of resistant strains which necessitates the development of new prevention, control, and treatment methods. Recently the bacterial lipoproteins have attracted the attention of the researchers for the induction of protective immunity against infectious diseases. VacJ is a highly conserved outer membrane lipoprotein that exists in many A. baumannii strains that deserves research on its immunogenicity. The gene encoding mature vacJ of A. baumannii ATCC19606 was cloned and over-expressed in Escherichia coli as a fusion protein. The recombinant VacJ (rVacJ) was purified. 20 and 40 µg of the purified ∼ 31 kDa rVacJ were used for immunization of mice along with Freund’s or Alum adjuvants. Antibody titres raised against the recombinant protein were determined by indirect ELISA. Whole A.baumannii cell was detected at 1:200 serum dilution. Bacterial challenges of mice groups with varying doses of A. baumannii were performed in the active, passive, and intranasal forms. The bacterial load in the mice lungs was determined in both control and immunized groups. A high antibody titre was noted as a result of immunization with rVacJ. The rVacJ-Freund’s adjuvant elicited a higher antibody level compared to the rVacJ-Alum adjuvant. The mice groups challenged intraperitoneally with live A. baumannii did not survive while the intranasally challenged group exhibited a significant reduction of 600 fold of the bacterial load in the lungs. The findings are of significant value in the development of novel adjuvanted vaccines and precise routes of administrations in combat against the notorious multidrug-resistant A.bauamnnii .
鲍曼不动杆菌是革兰氏阴性、严格需氧非运动细菌,其DNA G-C含量为39%至47%。鲍曼不动杆菌是一种重要的机会性医院病原体,可引起肺炎、菌血症、尿路感染、脑膜炎、皮肤和软组织感染。鲍曼不动杆菌的主要问题是耐药菌株的出现,这需要开发新的预防、控制和治疗方法。近年来,细菌脂蛋白在诱导机体对传染病产生保护性免疫方面受到了研究人员的关注。VacJ是一种高度保守的外膜脂蛋白,存在于许多鲍曼不动杆菌菌株中,值得对其免疫原性进行研究。克隆了鲍曼不动杆菌成熟vacJ编码基因ATCC19606,并以融合蛋白的形式在大肠杆菌中过表达。重组VacJ (rVacJ)得到纯化。20µg和40µg纯化的~ 31 kDa rVacJ与Freund或Alum佐剂一起用于小鼠免疫。间接ELISA法测定重组蛋白的抗体效价。以1:200血清稀释法检测鲍曼不动杆菌全细胞。用不同剂量的鲍曼不动杆菌对小鼠进行主动、被动和鼻内感染。测定对照组和免疫组小鼠肺部的细菌负荷。高抗体滴度被注意到是免疫rVacJ的结果。与rVacJ-Alum佐剂相比,rVacJ-Freund佐剂激发了更高的抗体水平。腹腔内注射活鲍曼不动杆菌的小鼠组没有存活,而鼻内注射组肺部细菌负荷显著减少了600倍。这些发现对于开发新型佐剂疫苗和精确的给药路线以对抗臭名昭著的多药耐药鲍曼杆菌具有重要价值。
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引用次数: 2
Comparative genomics identifies key genes and miRNAs that may be used as a strategy to control and treatment of COVID-19 比较基因组学确定了可能用作控制和治疗COVID-19策略的关键基因和mirna
Pub Date : 2020-01-01 DOI: 10.15761/TIM.1000253
A. Bahrami, Maryam Bakherad
The novel coronavirus SARS-CoV-2 (COVID-19) is a member of the family Coronaviridae and contains ssRNA genome. The emergency of COVID-19 has caused global threatened and panic health security. In order to detect common regions and genes of the Severe acute respiratory syndrome-associated coronavirus 2, we collected the whole genome of all viruses available in databases for this family (55 complete genomes), and made comparative genomic analyses with the collected data. We performed an interactomics approach to identify miRNAs that could be affected in some regions of the whole virus genome. As well as, protein structure modeling was used for modeling of related sequence. Cladogram revealed Bat coronavirus, MERS-related coronavirus, SARS-related coronavirus and SARS coronavirus 2 are closely related. The most important genes involved in the disease were RELA in virus genome and ACE2 receptors and CLEC4M genes in the host genome. RELA gene was suppressed by hsa-miR-516b-3p, hsa-miR-3529-3p and hsa-miR-6749-3p, ACE2 receptor was suppressed by hsa-miR-23b-5p and hsa-miR-769-5p, and finally, hsa-miR-4462 and hsa-miR-5187-5p suppressed CLEC4M gene. Therefore, our results will help to control and treat COVID-19 and revealed new insight into the vaccine design and miRNA therapy. *Correspondence to: A. Bahrami, Department of Animal Science, University of Tehran, Karaj, I.R. Iran, Tel: +98 9199300065; E-mail: a.bahrami@ut.ac.ir
新型冠状病毒SARS-CoV-2 (COVID-19)是冠状病毒科成员,含有ssRNA基因组。2019冠状病毒病的突发事件造成了全球性的卫生安全威胁和恐慌。为了检测冠状病毒2的共同区域和基因,我们收集了该家族数据库中所有病毒的全基因组(55个完整基因组),并与所收集的数据进行了比较基因组分析。我们采用了相互作用组学方法来鉴定可能在整个病毒基因组的某些区域受到影响的mirna。同时,利用蛋白质结构模型对相关序列进行建模。进化图显示蝙蝠冠状病毒与mers相关冠状病毒、SARS相关冠状病毒和SARS冠状病毒2型亲缘关系密切。病毒基因组中的RELA基因和宿主基因组中的ACE2受体和CLEC4M基因是该疾病最重要的相关基因。通过hsa-miR-516b-3p、hsa-miR-3529-3p和hsa-miR-6749-3p抑制RELA基因,通过hsa-miR-23b-5p和hsa-miR-769-5p抑制ACE2受体,最后通过hsa-miR-4462和hsa-miR-5187-5p抑制cle4m基因。因此,我们的研究结果将有助于控制和治疗COVID-19,并为疫苗设计和miRNA治疗提供新的见解。*通讯:A. Bahrami,德黑兰大学动物科学系,Karaj, I.R. Iran, Tel: +98 9199300065;电子邮件:a.bahrami@ut.ac.ir
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引用次数: 2
期刊
Trends in Medicine
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