animal experiments

动物实验
  • 文章类型: Journal Article
    本研究旨在探讨葛根如何利用网络药理学调节皮脂腺分泌,并通过动物研究验证其对重要靶标的影响。
    本研究利用UPLC-EQ-MS分析葛根提取物并鉴定潜在的生物活性化合物。这些化合物的预测目标是从瑞士目标预测数据库获得的,而与皮脂腺分泌相关的目标是从GeneCards数据库获得的。鉴定了数据库之间的共同靶标,并使用STRING平台建立了蛋白质-蛋白质相互作用(PPI)网络。使用Cytoscape软件进一步分析PPI网络。使用Reactome进行通路富集分析,和分子对接实验靶向关键途径蛋白。然后进行动物实验以验证葛根的主要活性化合物对关键途径蛋白的调节作用。
    这项研究确定了葛根中的17种活性化合物和163种与皮脂分泌调节相关的潜在靶标。通路富集分析表明,这些靶标可能通过参与过氧化物酶体增殖物激活受体α,SREB,类固醇代谢,和花生四烯酸代谢途径。分子对接分析表明葛根素和大豆苷元与这些途径中的关键靶标显示出有利的结合相互作用。动物实验表明,与对照组相比,葛根的给药导致皮脂腺斑块面积的显着减少。组织学分析显示皮脂腺结构有明显的改变,包括缩小尺寸,厚度,和密度。此外,TG的表达水平,DHT,葛根组IL-6显著降低(p<0.05),免疫印迹表明PPARG和ACC1的表达显着降低(p<0.05)。
    这项研究表明,葛根可以通过多个途径调节皮肤脂质代谢。主要机制涉及通过调节PPARG和ACC1的表达来抑制皮脂腺生长和减少TG分泌。葛根素和大豆苷元被确定为负责这种调节作用的关键生物活性化合物。这些发现强调了葛根在解决皮脂腺相关疾病方面的治疗潜力。
    UNASSIGNED: This research aims to explore how Puerariae Lobatae Radix regulates sebaceous gland secretion using network pharmacology, and validate its effects on important targets through animal studies.
    UNASSIGNED: This study utilized UPLC-EQ-MS to analyze Puerariae Lobatae Radix extract and identify potential bioactive compounds. Predicted targets of these compounds were obtained from the Swiss Target Prediction database, while targets associated with sebaceous gland secretion were obtained from the GeneCards database. Common targets between the databases were identified and a protein-protein interaction (PPI) network was established using the STRING platform. The PPI network was further analyzed using Cytoscape software. Pathway enrichment analysis was performed using Reactome, and molecular docking experiments targeted pivotal pathway proteins. Animal experiments were then conducted to validate the regulatory effects of the primary active compounds of Puerariae Lobatae Radix on key pathway proteins.
    UNASSIGNED: This research identified 17 active compounds in Puerariae Lobatae Radix and 163 potential targets associated with the regulation of sebum secretion. Pathway enrichment analysis indicates that these targets may modulate lipid metabolism pathways through involvement in peroxisome proliferator-activated receptor α, SREB, steroid metabolism, and arachidonic acid metabolism pathways. Molecular docking analysis demonstrates that puerarin and daidzein show favorable binding interactions with key targets in these pathways. Animal experiments demonstrated that the administration of Puerariae Lobatae Radix resulted in a significant reduction in the area of sebaceous gland patches compared to the control group. Histological analysis revealed notable alterations in the structure of sebaceous glands, including reductions in size, thickness, and density. Furthermore, the expression levels of TG, DHT, and IL-6 were significantly decreased in the Puerariae Lobatae Radix group (p < 0.05), and immunoblotting indicated a significant decrease in the expression of PPARG and ACC1 (p < 0.05).
    UNASSIGNED: This study demonstrates that Puerariae Lobatae Radix can regulate skin lipid metabolism by targeting multiple pathways. The primary mechanism involves inhibiting sebaceous gland growth and reducing TG secretion by modulating the expression of PPARG and ACC1. Puerarin and Daidzein are identified as key bioactive compounds responsible for this regulatory effect. These findings highlight the therapeutic potential of Puerariae Lobatae Radix in addressing sebaceous gland-related conditions.
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  • 文章类型: Journal Article
    背景:激素性股骨头坏死(SONFH)是一种严重的健康风险,本研究旨在通过生物信息学分析和动物实验来确定与该疾病相关的免疫相关生物标志物和通路。
    方法:使用从GEO数据库获得的SONFH相关数据集,我们进行了差异表达分析和加权基因共表达网络分析(WGCNA)以提取SONFH相关基因。然后构建了蛋白质-蛋白质相互作用(PPI)网络,并确定了核心子网络基因。进行SONFH样品的免疫细胞浸润和聚类分析以评估免疫细胞群体的差异。WGCNA分析用于鉴定与免疫细胞相关的模块基因,和集线器基因是使用机器学习识别的。进行内部和外部验证以及动物实验以确认hub基因的差异表达和SONFH中免疫细胞的浸润。
    结果:差异表达分析显示502DEGs。WGCNA分析确定了与SONFH密切相关的蓝色模块,包含1928个模块基因。DEG和蓝色模块基因之间的交叉分析导致453个交叉基因。PPI网络和MCODE模块确定了富含各种信号传导途径的15个关键靶标。免疫细胞浸润分析显示CD8+t细胞差异有统计学意义,单核细胞,SONFH和对照样品之间的巨噬细胞M2和嗜中性粒细胞。无监督聚类将SONFH样本分为两个聚类(C1和C2),免疫细胞浸润也表现出显著差异。使用WGCNA和机器学习分析进一步鉴定了hub基因(ICAM1、NR3C1和IKBKB)。基于这些枢纽基因,我们构建了临床预测模型,并在内部和外部进行了验证.动物实验证实了SONFH中hub基因的上调,免疫细胞浸润的增加。
    结论:这项研究确定了ICAM1,NR3C1和IKBKB是参与CD8t细胞免疫细胞浸润的潜在免疫相关生物标志物,单核细胞,巨噬细胞M2、中性粒细胞等免疫细胞参与SONFH的发病机制。这些生物标志物通过调节趋化因子信号通路起作用,Toll样受体信号通路,和其他途径。这些发现为SONFH的疾病机制提供了有价值的见解,并可能有助于未来的药物开发工作。
    BACKGROUND: Steroid-induced osteonecrosis of femoral head (SONFH) is a severe health risk, and this study aims to identify immune-related biomarkers and pathways associated with the disease through bioinformatics analysis and animal experiments.
    METHODS: Using SONFH-related datasets obtained from the GEO database, we performed differential expression analysis and weighted gene co-expression network analysis (WGCNA) to extract SONFH-related genes. A protein-protein interaction (PPI) network was then constructed, and core sub-network genes were identified. Immune cell infiltration and clustering analysis of SONFH samples were performed to assess differences in immune cell populations. WGCNA analysis was used to identify module genes associated with immune cells, and hub genes were identified using machine learning. Internal and external validation along with animal experiments were conducted to confirm the differential expression of hub genes and infiltration of immune cells in SONFH.
    RESULTS: Differential expression analysis revealed 502 DEGs. WGCNA analysis identified a blue module closely related to SONFH, containing 1928 module genes. Intersection analysis between DEGs and blue module genes resulted in 453 intersecting genes. The PPI network and MCODE module identified 15 key targets enriched in various signaling pathways. Analysis of immune cell infiltration showed statistically significant differences in CD8 + t cells, monocytes, macrophages M2 and neutrophils between SONFH and control samples. Unsupervised clustering classified SONFH samples into two clusters (C1 and C2), which also exhibited significant differences in immune cell infiltration. The hub genes (ICAM1, NR3C1, and IKBKB) were further identified using WGCNA and machine learning analysis. Based on these hub genes, a clinical prediction model was constructed and validated internally and externally. Animal experiments confirmed the upregulation of hub genes in SONFH, with an associated increase in immune cell infiltration.
    CONCLUSIONS: This study identified ICAM1, NR3C1, and IKBKB as potential immune-related biomarkers involved in immune cell infiltration of CD8 + t cells, monocytes, macrophages M2, neutrophils and other immune cells in the pathogenesis of SONFH. These biomarkers act through modulation of the chemokine signaling pathway, Toll-like receptor signaling pathway, and other pathways. These findings provide valuable insights into the disease mechanism of SONFH and may aid in future drug development efforts.
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  • 文章类型: English Abstract
    目的:探讨大黄鱼治疗糖尿病肾病(DKD)的作用机制。
    方法:TCMSP,PubChem和SwissTargetPrediction数据库用于获得Euonymusalatus中的活性成分及其靶标。使用GEO数据库和R语言分析DKD中差异表达的基因。使用GeneCards获得DKD的治疗靶标,DisGeNet,OMIM和TTD数据库。构建了蛋白质-蛋白质相互作用网络和“药物-成分-靶标-疾病”网络,用于分析核心靶标的拓扑特性,使用GO和KEGG途径富集分析对其进行了功能注释。对核心靶点和主要药理活性成分进行分子对接,结果在db/db小鼠中验证。
    结果:对GSE96804、GSE30528和GSE30529数据集(包括60例DKD患者和45例正常样本)的分析确定了DKD中的111个差异表达基因。网络药理学分析获得了木卫二和DKD靶基因的161个交叉基因,包括关键核心靶基因SRC,EGFR,AKT1。木卫二的核心活性成分是槲皮素,山奈酚,Diosmetin,还有柚皮素,这与对异生病毒的反应和蛋白质磷酸化以及调节的EGFR酪氨酸激酶抑制剂抵抗途径有关。分子对接表明,木卫二的核心活性成分与核心靶标具有良好的结合活性。在DKD的db/db鼠标模型中,用木卫二治疗可明显改善肾脏病变,显著抑制肾组织SRC的表达,EGFR和AKT1,并延迟DKD的进展。
    结论:木卫二含有多种活性成分,例如槲皮素,Kakaferol,Diosmetin,柚皮苷,调节SRC的表达,EGFR,和AKT1影响EGFR酪氨酸激酶抑制剂耐药信号通路,延缓DKD的进展。
    OBJECTIVE: To explore the therapeutic mechanism of Euonymus alatus for diabetic kidney disease (DKD).
    METHODS: TCMSP, PubChem and Swiss Target Prediction databases were used to obtain the active ingredients in Euonymus alatus and their targets. GEO database and R language were used to analyze the differentially expressed genes in DKD. The therapeutic targets of DKD were obtained using GeneCards, DisGeNet, OMIM and TTD databases. The protein-protein interaction network and the \"drug-component-target-disease\" network were constructed for analyzing the topological properties of the core targets, which were functionally annotated using GO and KEGG pathway enrichment analyses. Molecular docking was performed for the core targets and the main pharmacologically active components, and the results were verified in db/db mice.
    RESULTS: Analysis of GSE96804, GSE30528 and GSE30529 datasets (including 60 DKD patients and 45 normal samples) identified 111 differentially expressed genes in DKD. Network pharmacology analysis obtained 161 intersecting genes between the target genes of Euonymus alatus and DKD, including the key core target genes SRC, EGFR, and AKT1. The core active ingredients of Euonymus alatus were quercetin, kaempferol, diosmetin, and naringenin, which were associated with responses to xenobiotic stimulionus and protein phosphorylation and regulated EGFR tyrosine kinase inhibitor resistance pathways. Molecular docking suggested good binding activities of the core active components of Euonymus alatus with the core targets. In db/db mouse models of DKD, treatment with Euonymus alatus obviously ameliorated kidney pathologies, significantly inhibited renal expressions of SRC, EGFR and AKT1, and delayed the progression of DKD.
    CONCLUSIONS: Euonymus alatus contains multiple active ingredients such as quercetin, kakaferol, diosmetin, naringenin, which regulate the expressions of SRC, EGFR, and AKT1 to affect the EGFR tyrosine kinase inhibitor resistance signaling pathway to delay the progression of DKD.
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  • 文章类型: Journal Article
    本研究旨在评估针灸和电针对各种卵巢功能障碍的综合调节作用。
    我们系统地搜索了与多囊卵巢综合征(PCOS)有关的动物实验的文章,卵巢早衰(POF),卵巢早衰(POI),和围绝经期综合征(PMS)跨多个数据库,包括PubMed,WebofScience,科克伦图书馆,Embase,和四个中文数据库。搜索涵盖了从成立到2023年11月的时期。我们根据符合条件的文献对针刺组和模型组(未治疗)进行了比较分析。我们的主要结果包括血清性激素(黄体生成素,卵泡刺激素,睾酮,雌二醇,孕酮,和抗苗勒管激素)和卵巢重量。对二分类数据进行了综合,以建立显着治疗后改善的相对风险(RR),同时汇总连续数据以确定组间治疗后评分的标准化平均差(SMD).统计分析,包括敏感性分析,Egger\'stest,和修剪填充方法,使用Stata15.0软件执行。
    荟萃分析涵盖29篇文章,共涉及623只大鼠。与PCOS的大鼠模型相比,实验组显示血清LH水平降低,T和LH/FSH比值。然而,在AMH中没有观察到统计学上的显着差异,FSH,E2级别,两组之间的卵巢重量。在卵巢发育不全模型大鼠中,针刺和电针干预均与E2水平升高相关.然而,LH和FSH水平在两组之间没有显着差异。
    针灸或电针主要通过调节血清性激素促进卵巢功能的恢复,在各种类型的卵巢功能不全疾病中发挥调节作用。
    https://www.crd.约克。AC.uk/prospro/display_record.php?ID=CRD42022316279。
    UNASSIGNED: This study aims to assess the comprehensive and integrated modulatory effects of acupuncture and electroacupuncture on various ovarian dysfunctions.
    UNASSIGNED: We systematically searched for articles on animal experiments related to polycystic ovary syndrome (PCOS), premature ovarian failure (POF), premature ovarian insufficiency (POI), and perimenopausal syndrome (PMS) across multiple databases, including PubMed, Web of Science, Cochrane Library, Embase, and four Chinese language databases. The search covered the period from inception to November 2023. We conducted a comparative analysis between the acupuncture group and the model group (untreated) based on eligible literature. Our primary outcomes encompassed serum sex hormones (Luteinizing hormone, Follicle-stimulating hormone, Testosterone, Estradiol, Progesterone, and Anti-Müllerian hormone) and ovarian weight. Dichotomous data were synthesized to establish the relative risk (RR) of notable post-treatment improvement, while continuous data were pooled to determine the standardized mean difference (SMD) in post-treatment scores between the groups. Statistical analyses, including sensitivity analysis, Egger\'s test, and the trim-and-fill method, were executed using Stata 15.0 software.
    UNASSIGNED: The meta-analysis encompassed 29 articles involving a total of 623 rats. In comparison to rat models of PCOS, the experimental group exhibited a reduction in serum levels of LH, T and LH/FSH ratio. However, no statistically significant differences were observed in AMH, FSH, E2 levels, and ovarian weight between the two groups. In the ovarian hypoplasia model rats, both acupuncture and electroacupuncture interventions were associated with an increase in E2 levels. However, the levels of LH and FSH did not exhibit a significant difference between the two groups.
    UNASSIGNED: Acupuncture or electroacupuncture facilitates the restoration of ovarian function primarily through the modulation of serum sex hormones, exerting regulatory effects across various types of ovarian dysfunction disorders.
    UNASSIGNED: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022316279.
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  • 文章类型: Journal Article
    背景:引入了《动物研究:体内实验报告》(ARRIVE1.0)指南的第一版,以改善动物研究的报告,但并没有带来这方面的重大改进,这也适用于腹膜透析(PD)的动物研究。这里,我们检查了这些指南的修订版(ARRIVE2.0)的性能.
    方法:在PubMed®中确定了在2018-2020年(ARRIVE1.0期)发表的89篇相关文章和在2021-2023年(ARRIVE2.0期)发表的97篇相关文章,并分析了报告的完整性和透明度。
    结果:在这两个时期,大多数研究是在亚洲进行的,在啮齿动物身上,与腹膜病理生理学有关。在ARRIVE2.0期间,更多的研究发表在更高的影响因子期刊上,重点是药理学和免疫学。与ARRIVE1.0相比,在ARRIVE2.0期间,在欧洲和美国的研究中,研究设计和报告的一般方面有所改善。但在亚洲没有明显变化。详细分析显示,ARRIVE2.0Essential10清单中包含的关键信息的报告完整性没有改善。这两个时期的文章都缺乏样本量计算,使用盲法,记录不良事件和脱落,和规范适当的统计方法。ARRIVE2.0期间的报告水平与期刊影响因素以及在其对作者的说明中是否存在使用ARRIVE2.0的建议不一致。
    结论:到目前为止,ARRIVE2.0在PD的动物研究报告中没有显着改善。
    BACKGROUND: The first version of Animal Research: Reporting of in vivo Experiments (ARRIVE 1.0) guidelines was introduced to improve reporting of animal research but did not lead to major improvements in this respect. This applied also to animal studies on peritoneal dialysis (PD). Here, we examined the performance of the revised version of these guidelines (ARRIVE 2.0).
    METHODS: Eighty-nine relevant articles published in 2018-2020 (ARRIVE 1.0 period) and 97 published in 2021-2023 (ARRIVE 2.0 period) were identified in PubMed® and analyzed for completeness and transparency of reporting.
    RESULTS: In both periods, most studies were carried out in Asia, on rodents, and concerned the peritoneal pathophysiology. During ARRIVE 2.0, more studies were published in higher impact factor journals with the focus on pharmacology and immunology. Compared to ARRIVE 1.0, general aspects of study design and reporting improved during ARRIVE 2.0 period in studies generated in Europe and USA but did not change significantly in Asia. Detailed analysis showed no global improvement in completeness of reporting key information included in the ARRIVE 2.0 Essential 10 checklist. Articles from both periods were deficient in sample size calculations, use of blinding, recording adverse events and drop-outs, and specification of appropriate statistical methods. The level of reporting during ARRIVE 2.0 did not correspond to the journal impact factor and the presence of recommendations for the use of ARRIVE 2.0 in their instructions to authors.
    CONCLUSIONS: So far, ARRIVE 2.0 has not produced significant improvements in the reporting of animal studies in PD.
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  • 文章类型: Journal Article
    本研究基于网络药理学探讨麝香通心滴丸(STDP)治疗糖尿病心肌病(DCM)的作用机制,分子对接,和动物实验。蝙蝠侠,TCMSP,和GeneCards搜索STDP针对DCM的活性成分和靶标。STRING和Cytoscape用于构建蛋白质-蛋白质相互作用(PPI)网络和"药物-活性成分-靶标"网络。基于DAVID对靶标进行基因本体论(GO)功能注释和京都基因和基因组百科全书(KEGG)富集分析。使用AutoDockVina进行关键受体蛋白与相应活性成分的分子对接。采用高脂饮食联合链脲佐菌素腹腔注射建立DCM大鼠模型。大鼠被分配到对照组,模型,低(20mg·kg〜(-1))和高剂量(40mg·kg〜(-1))STDP,二甲双胍(200mg·kg~(-1))组。连续给药8周后,心脏功能,心肌病理变化,超声心动图检测各组大鼠心肌胶原纤维沉积,苏木精-伊红(HE)染色,和天狼星红染色,分别。WGA染色检测心肌肥厚。p38丝裂原活化蛋白激酶(p38)的表达水平,磷酸化-p38(p-p38),c-Jun氨基末端激酶(JNK),磷酸化-JNK(p-JNK),Westernblot检测各组大鼠心肌组织中caspase-3和C-caspase-3。网络药理学预测了199个活性成分和1655个STDP靶标和463个DCM靶标。获得了STDP治疗DCM的一百三十四个潜在靶标,筛选出糖尿病并发症中的AGE-RAGE信号通路。分子对接结果表明,去氢米替隆,色胺酮与RAGE有很强的结合亲和力。动物实验结果证实STDP能有效保护DCM大鼠的心功能。与DCM模型组相比,STDP组显示p-p38、p-JNK、和C-caspase-3。总而言之,STDP可能通过调节AGE-RAGE信号通路保护DCM大鼠心功能。
    This study aimed to explore the mechanism of Shexiang Tongxin Dropping Pills(STDP) in treating diabetic cardiomyopathy(DCM) based on network pharmacology, molecular docking, and animal experiments. BATMAN, TCMSP, and GeneCards were searched for the active ingredients and targets of STDP against DCM. STRING and Cytoscape were used to build the protein-protein interaction(PPI) network and "drug-active ingredient-target" network. Gene Ontology(GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analysis of the targets were carried out based on DAVID. The molecular docking of key receptor proteins with corresponding active ingredients was performed using AutoDock Vina. The rat model of DCM was established by a high-fat diet combined with intraperitoneal injection of streptozotocin. Rats were assigned into control, model, low-(20 mg·kg~(-1)) and high-dose(40 mg·kg~(-1)) STDP, and metformin(200 mg·kg~(-1)) groups. After 8 weeks of continuous administration, the cardiac function, myocardial pathological changes, and myocardial collagen fiber deposition of rats in each group were detected by echocardiography, hematoxylin-eosin(HE) staining, and Sirius red staining, respectively. The myocardial hypertrophy was detected by WGA staining. The expression levels of p38 mitogen-activated protein kinase(p38), phosphorylation-p38(p-p38), c-Jun N-terminal kinase(JNK), phosphorylation-JNK(p-JNK), caspase-3, and C-caspase-3 in the myocardial tissue of rats in each group were measured by Western blot. The network pharmacology predicted 199 active ingredients and 1 655 targets of STDP and 463 targets of DCM. One hundred and thirty-four potential targets of STDP for treating DCM were obtained, and the AGE-RAGE signaling pathway in diabetic complications was screened out. Molecular docking results showed that miltirone, dehydromiltirone, and tryptanthrin had strong binding affinity with RAGE. The results of animal experiments confirmed that STDP effectively protected the cardiac function of DCM rats. Compared with the DCM model group, the STDP groups showed significantly down-regulated protein levels of p-p38, p-JNK, and C-caspase-3. To sum up, STDP may protect the cardiac function of DCM rats by regulating the AGE-RAGE signaling pathway.
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  • 文章类型: English Abstract
    Due to the legal implantation of the 3R principle, the number of laboratory animals decreased significantly over the past 10 years. In this article, the historical development of animal experiments over the last decade will be presented in the context of the current regulations of the Animal Welfare Act. It points out bureaucratic obstacles to the approval of animal experiments, which jeopardize Germany as a research location for both academia and industry. The article presents constructive proposals for solutions. This should be done in accordance with the DFG recommendation to ensure efficient biomedical research while maintaining the highest animal welfare standards.
    UNASSIGNED: Bedingt durch die gesetzliche Implantierung des 3R-Prinzips sind die Versuchstierzahlen in den letzten 10 Jahren signifikant gesunken. In diesem Artikel soll die geschichtliche Entwicklung der Tierversuche in der letzten Dekade im Kontext zur aktuellen Regelung des Tierschutzgesetzes dargestellt werden. Es wird auf bürokratische Hürden bei der Genehmigung von Tierversuchen hingewiesen, die den Forschungsstandort Deutschland sowohl für die Akademie als auch die Industrie gefährden. Im Rahmen des Artikels werden konstruktive Lösungsvorschläge aufgezeigt. Dies soll gemäß der DFG-Empfehlung zur Sicherung leistungsfähiger biomedizinischer Forschung unter Wahrung höchster Tierschutzstandards erfolgen.
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  • 文章类型: Journal Article
    在审查了欧盟(EU)关于保护用于科学目的的动物的指令2010/63/EU之后,所有批准项目的非技术项目摘要(NTS)必须使用标准模板在中央数据库中发布。我们对2018年ALTEX报告的NTS的初步审查发现,NTS在可及性和质量方面存在缺陷。特别是不良反应部分,其中对动物的危害是要描述的。在这里,我们重复我们的审查,看看这些立法变化是否改善了NTS的可访问性和质量。与之前一样,我们专注于来自英国(UK)和德国的NTS;即使英国已经离开欧盟,它也使用相同的模板。我们发现,我们确定对预测危害部分至关重要的六个要素中的五个要素的报告有了显着改善。然而,不良反应报告无显著改善.只有41%的德国NTS和48%的英国NTS完全报告了预测危害部分的这一重要元素。在我们看来,研究人员在描述他们的研究对动物的影响时需要得到支持,并在此提供协助,我们包括主管当局的清单以及标准管理和采样程序的建议术语清单。除非NTS进一步改进,它们作为在3R中分享良好做法或支持循证决策的工具的效用将仍然有限。
    欧盟(EU)所有国家都必须发布使用动物的研究项目的“非技术摘要”(NTS)。为了提高透明度,公众必须能够访问NTS并了解其内容。我们先前的审查发现,NTS中提供的信息在许多情况下是缺乏的。这阻碍了对动物在实验过程中经历的事情的充分理解。特别是,NTS通常无法完全描述动物将经历哪些程序,他们多久会发生一次,他们会持续多久,以及它们会造成的伤害。在这里,我们重复我们的审查,看看最近的立法变化,包括使用标准模板在中央数据库中发布NTS的要求,有所作为。虽然报告有了一些改进,许多NTS仍然无法充分描述动物将经历的伤害。
    Following a review of Directive 2010/63/EU on the protection of animals used for scientific pur­poses in the European Union (EU), non-technical project summaries (NTS) of all approved projects must be published in a central database using a standard template. Our initial review of the NTS reported in ALTEX in 2018 had found the NTS to be deficient in their accessibility and quality, notably the “adverse effects” section where the harms to the animals are meant to be described. Here we repeat our review to see if these legislative changes have improved the accessibility and quality of the NTS. As before, we focused on the NTS from the United Kingdom (UK) and Germany; even though the UK has left the EU, it is using the same template. We found significant improvement in the reporting of five of the six elements we identified as essential to the “predicted harms” section. However, there was no significant improvement in the reporting of adverse effects. Only 41% of German NTS and 48% of UK NTS are fully reporting this important element of the “predicted harms” section. In our view, researchers need support in describing the impact of their research on the animals and to assist here we include a checklist for competent authorities and a list of suggested terminology for standard administration and sampling procedures. Unless the NTS improve further, their utility as a tool for sharing of good practices in the 3Rs or to support evidence-based policy­making will remain limited.
    All countries of the European Union (EU) are required to publish “non-technical summaries” (NTS) of research projects that use animals. To improve transparency, the public must have access to NTS and understand their content. Our previous review found that the information provided in the NTS was lacking in many cases. This is preventing a full understanding of what animals experience during experiments. In particular, NTS often failed to fully describe what procedures the animals would be subjected to, how often they would take place, how long they would last, and the harm they would cause. Here we repeat our review to see if recent legislative changes, including the requirement for NTS to be published in a central database using a standard template, have made a difference. While there has been some improvement in reporting, many NTS still fail to adequately describe the harm that animals will experience.
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  • 文章类型: Meta-Analysis
    背景:赤芍(PRR)是白芍的干燥根,已被广泛用于抗血栓,降脂,抗痉挛,抗氧化剂,抗菌,保肝,和抗肿瘤在中国临床实践中的应用。最近的研究表明,PRR在荷瘤动物模型中起着重要的抗肿瘤作用。
    目的:目前尚未评价PRR的抗肿瘤作用。这项研究进行了荟萃分析,以评估PRR在动物模型上的抗肿瘤功效。为PRR在肿瘤辅助治疗中的临床应用提供科学依据。
    方法:英文数据库(PubMed,科克伦图书馆,Embase,和WebofScience)和中文数据库(CNKI,万方,SinoMed,CTSJ-VIP)用于搜索研究PRR及其提取物的抗肿瘤作用的所有相关动物研究。纳入研究的质量采用SYRCLE动物实验风险评估工具,采用Revman5.3软件进行统计学分析。Egger检验和漏斗图用于评估研究中潜在的发表偏倚。
    结果:最初的搜索共产生了3905项潜在相关研究,24项研究符合纳入标准.这些研究包括肝细胞癌的动物肿瘤模型,肺癌,肉瘤,膀胱癌,白血病,结肠癌,胶质母细胞瘤,还有胰腺癌.荟萃分析结果表明,PRR及其提取物均显着抑制动物肿瘤的生长。与对照组相比,PRR实质性抑制肿瘤体积(SMD,-3.09;95%CI,[-4.05,-2.13];P<0.0001),肿瘤重量降低(SMD,-1.08;95%CI,[-1.37,-0.78];P<0.0001),肿瘤数量减少(SMD,-2.16;95%CI,[-3.45,-0.86];P=0.001),并延长了生存持续时间(SMD,实验动物为0.97;95%CI,[0.23,1.71];P=0.01)。
    结论:PRR在包括肝细胞癌在内的8种动物模型中显示出潜在的治疗效果,肺癌,肉瘤,膀胱癌,白血病,结肠癌,胶质母细胞瘤,还有胰腺癌.然而,纳入研究的质量和数量可能会影响阳性结果的准确性.在未来,需要更多高质量的随机对照动物实验进行荟萃分析.
    BACKGROUND: Paeoniae Radix Rubra (PRR) is the dried root of Paeonia lactiflora Pall, which has been widely used to anti-thrombotic, lipid-lowering, anti-spasmodic, antioxidant, antibacterial, hepatoprotective, and anti-tumor in Chinese clinical practice. Recent research has demonstrated that PRR plays a significant anti-tumor role in animal models of tumor-bearing.
    OBJECTIVE: There has not been the evaluation of the anti-tumor effects of PRR. This study conducts a meta-analysis to assess the anti-tumor efficacy of PRR on animal models, providing scientific evidence for clinical application of PRR in the adjuvant therapy of tumors.
    METHODS: English databases (PubMed, The Cochrane Library, Embase, and Web of Science) and Chinese databases (CNKI, WanFang, SinoMed, CTSJ-VIP) were used to search all pertinent animal studies investigating the anti-tumor effects of PRR and its extracts. The quality of the included studies was evaluated using the SYRCLE animal experiment risk assessment tool, and statistical analysis was carried out using Revman 5.3 software. Egger\'s test and funnel plots were used to assess potential publication bias in the studies.
    RESULTS: The initial search produced a total of 3905 potentially pertinent studies, and 24 studies met the inclusion criteria. These studies included animal tumor models of hepatocellular carcinoma, lung cancer, sarcoma, bladder cancer, leukemia, colon cancer, glioblastoma, and pancreatic cancer. The meta-analysis findings demonstrated that both PRR and its extracts significantly inhibited tumor growth in animals. Compared with the control group, PRR substantively inhibited tumor volume (SMD, -3.09; 95% CI, [-4.05, -2.13]; P < 0.0001), reduced tumor weight (SMD, -1.08; 95% CI, [-1.37, -0.78]; P < 0.0001), decreased tumor number (SMD, -2.16; 95% CI, [-3.45, -0.86]; P = 0.001), and prolonged the survival duration time (SMD, 0.97; 95% CI, [0.23, 1.71]; P = 0.01) on the experimental animals.
    CONCLUSIONS: PRR displayed a potential therapeutic efficacy on eight tumors in animal models including hepatocellular carcinoma, lung cancer, sarcoma, bladder cancer, leukemia, colon cancer, glioblastoma, and pancreatic cancer. However, the quality and quantity of included studies may affect the accuracy of positive results. In the future, more high-quality randomized controlled animal experiments are need for meta-analysis.
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  • 文章类型: Journal Article
    Lagovirus属,属于杯状病毒科,大约在1980年代出现。它包括高致病性物种,兔出血性疾病病毒(RHDV/GI.1)和欧洲褐兔综合征病毒(EBHSV/GII.1),导致致命的肝炎,和具有肠道嗜性的非致病性病毒,兔杯状病毒(RCV/GI.3,4)和兔杯状病毒(HaCV/GII.2)。拉戈病毒已经沿着两个独立的遗传谱系进化:兔的GI(RHDV和RCV)和兔的GII(EBHSV和HaCV)。需要强调的是,泻湖病毒的基因组,像其他杯状病毒一样,在RdRp-VP60连接处高度保守,在这一点上有利于基因型间重组事件。RCV(基因型GI.3)之间的重组,非结构(NS)基因的供体,还有一种未知的病毒,结构(S)基因的供体,很可能导致欧洲兔子中出现了一种新的拉格病毒,称为RHDV类型2(GI.2),2010年在欧洲确定。在欧洲和澳大利亚的兔子中分离的新的RHDV2基因型间重组体起源于RHDV2(GI.2)和RHDV(GI.1)或RCV(GI.3,4)之间的类似事件。RHDV2(GI.2)在全球范围内迅速传播,取代RHDV,并显示几种lagomorph物种作为次要宿主。RHDV2病毒中的重组事件导致许多具有非常不同的NS和S基因组合的病毒。最近在欧洲野兔中鉴定了具有来自野兔谱系(GII)的NS基因的重组RHDV2。这项研究调查了在欧洲野兔(RHDV2_Bg12)中在意大利确定的第一个RHDV2(GI.2),证明这是一种新病毒,起源于作为S基因供体的RHDV2和野兔lagovirus之间的重组,尚未确定,但可能是非致病性的,作为NS基因供体。当兔子接种RHDV2_Bg12时,既没有死亡也没有血清转化记录,证明RHDV2_Bg12不能感染兔子。此外,尽管密集和连续的现场监测,RHDV2_Bg12从未在意大利或其他地方的野兔或兔子中再次被发现。这一结果表明,lagovirus的宿主特异性不仅可以依赖于S基因,正如预期的那样,直到今天,但也可能在一些物种特异性NS基因序列上。因此,因为RHDV2(GI.2)感染了几种Lagomorphs,反过来可能含有几种特定的非致病性泻药病毒,新物种形成的可能性,尤其是兔子以外的动物,是真实的。RHDV2Bg_12证明了这一点,虽然这次尝试显然失败了。
    The genus Lagovirus, belonging to the family Caliciviridae, emerged around the 1980s. It includes highly pathogenic species, rabbit hemorrhagic disease virus (RHDV/GI.1) and European brown hare syndrome virus (EBHSV/GII.1), which cause fatal hepatitis, and nonpathogenic viruses with enteric tropism, rabbit calicivirus (RCV/GI.3,4) and hare calicivirus (HaCV/GII.2). Lagoviruses have evolved along two independent genetic lineages: GI (RHDV and RCV) in rabbits and GII (EBHSV and HaCV) in hares. To be emphasized is that genomes of lagoviruses, like other caliciviruses, are highly conserved at RdRp-VP60 junctions, favoring intergenotypic recombination events at this point. The recombination between an RCV (genotype GI.3), donor of non-structural (NS) genes, and an unknown virus, donor of structural (S) genes, likely led to the emergence of a new lagovirus in the European rabbit, called RHDV type 2 (GI.2), identified in Europe in 2010. New RHDV2 intergenotypic recombinants isolated in rabbits in Europe and Australia originated from similar events between RHDV2 (GI.2) and RHDV (GI.1) or RCV (GI.3,4). RHDV2 (GI.2) rapidly spread worldwide, replacing RHDV and showing several lagomorph species as secondary hosts. The recombination events in RHDV2 viruses have led to a number of viruses with very different combinations of NS and S genes. Recombinant RHDV2 with NS genes from hare lineage (GII) was recently identified in the European hare. This study investigated the first RHDV2 (GI.2) identified in Italy in European hare (RHDV2_Bg12), demonstrating that it was a new virus that originated from the recombination between RHDV2, as an S-gene donor and a hare lagovirus, not yet identified but presumably nonpathogenic, as an NS gene donor. When rabbits were inoculated with RHDV2_Bg12, neither deaths nor seroconversions were recorded, demonstrating that RHDV2_Bg12 cannot infect the rabbit. Furthermore, despite intensive and continuous field surveillance, RHDV2_Bg12 has never again been identified in either hares or rabbits in Italy or elsewhere. This result showed that the host specificity of lagoviruses can depend not only on S genes, as expected until today, but potentially also on some species-specific NS gene sequences. Therefore, because RHDV2 (GI.2) infects several lagomorphs, which in turn probably harbor several specific nonpathogenic lagoviruses, the possibility of new speciation, especially in those other than rabbits, is real. RHDV2 Bg_12 demonstrated this, although the attempt apparently failed.
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