biological factor

生物因子
  • 文章类型: Journal Article
    背景:本系统综述旨在确定与腹部疝形成相关的遗传和生物学标志物。
    方法:遵循PRIMSA指南,我们搜索了PubMed,MEDLINE,Embase,Scopus,和COCHRANE数据库。
    结果:在5946项研究中,65人被选中,由于数据不足,排除了造口旁疝。腹股沟疝,五项研究揭示了66个基因的92个易感基因座,主要与免疫反应有关。11项研究观察到MMP-2水平升高,与间接腹股沟疝相比,直接突出了七个更高的MMP-2。一项切口疝研究在与炎症和细胞粘附相关的174个基因中确定了独特的基因表达谱。在食管裂孔疝中,确定了几个遗传风险位点。对于所有疝气类别,I型/III型胶原比值减少。
    结论:腹股沟疝的生物学标记似乎是一致的。然而,切口疝的遗传易感性仍然难以捉摸。进一步研究阐明这些遗传和生物复杂性可以为更个性化的患者护理铺平道路。
    BACKGROUND: This systematic review aims to identify genetic and biologic markers associated with abdominal hernia formation.
    METHODS: Following PRIMSA-guidelines, we searched PubMed, MEDLINE, Embase, Scopus, and COCHRANE databases.
    RESULTS: Of 5946 studies, 65 were selected, excluding parastomal hernias due to insufficient data. For inguinal hernias, five studies unveiled 92 susceptible loci across 66 genes, predominantly linked to immune responses. Eleven studies observed elevated MMP-2 levels, with seven highlighting greater MMP-2 in direct compared to indirect inguinal hernias. One incisional hernia study identified unique gene-expression profiles in 174 genes associated with inflammation and cell-adhesion. In hiatal hernias, several genetic risk loci were identified. For all hernia categories, type I/III collagen ratios diminished.
    CONCLUSIONS: Biological markers in inguinal hernias appears consistent. Yet, the genetic predisposition in incisional hernias remains elusive. Further research to elucidate these genetic and biological intricacies can pave the way for more individualized patient care.
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  • 文章类型: Systematic Review
    这项系统评价的目的是评估物理治疗干预对周围神经性疼痛(PNP)临床前模型中神经性疼痛生物标志物的影响。搜索是在Pubmed中执行的,WebofScience,EMBASE,科克伦,Cinhal,Psycinfo,Scopus,Medline,科学直接。包括评估PNP(系统性或创伤性)的任何类型的物理治疗干预的研究。本评论包括81篇文章。最常见的PNP模型是慢性压迫性损伤,最常研究的生物标志物与神经免疫过程有关。运动疗法和电针是2种最常用的物理疗法干预措施,而针灸和关节动员的检查频率较低。大多数理疗干预调节与神经性疼痛相关的生物标志物的表达。尽管结果似乎很有希望;由于纳入研究的偏倚风险很高,并且报告的生物标志物的类型和解剖定位具有高度异质性,因此必须谨慎考虑。审查协议在PROSPERO(CRD42019142878)上注册。背景:本文介绍了目前关于外周神经性疼痛临床前模型中神经性疼痛生物标志物的物理治疗干预的证据。审查了现有的调查结果,并提供有关每种理疗方式有效性的相关数据,以及其证据的确定性和临床适用性。
    The purpose of this systematic review was to evaluate the effects of physiotherapeutic interventions on biomarkers of neuropathic pain in preclinical models of peripheral neuropathic pain (PNP). The search was performed in Pubmed, Web of Science, EMBASE, Cochrane, Cinhal, Psycinfo, Scopus, Medline, and Science Direct. Studies evaluating any type of physiotherapy intervention for PNP (systemic or traumatic) were included. Eighty-one articles were included in this review. The most common PNP model was chronic constriction injury, and the most frequently studied biomarkers were related to neuro-immune processes. Exercise therapy and Electro-acupuncture were the 2 most frequently studied physiotherapy interventions while acupuncture and joint mobilization were less frequently examined. Most physiotherapeutic interventions modulated the expression of biomarkers related to neuropathic pain. Whereas the results seem promising; they have to be considered with caution due to the high risk of bias of included studies and high heterogeneity of the type and anatomical localization of biomarkers reported. The review protocol is registered on PROSPERO (CRD42019142878). PERSPECTIVE: This article presents the current evidence about physiotherapeutic interventions on biomarkers of neuropathic pain in preclinical models of peripheral neuropathic pain. Existing findings are reviewed, and relevant data are provided on the effectiveness of each physiotherapeutic modality, as well as its certainty of evidence and clinical applicability.
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  • 文章类型: Journal Article
    背景:本系统综述和荟萃分析的目的是分析使用水平修磨牙冠制备的牙齿周围的牙周行为,该牙冠支持固定的金属陶瓷和氧化锆全覆盖牙冠和固定的局部义齿(FDP)。
    方法:进行了电子搜索,以在四个数据库中找到相关的临床试验:PubMed,Embase,科克伦,还有Scopus.在确定的任何其他文章的文章的参考部分中进行了手动搜索。没有关于出版年份或语言的限制。在定量和定性分析中考虑了以下变量:探查袋深度(PPD);探查附着水平(PAL);牙菌斑控制记录(PCR);探查出血(BOP);和牙龈边缘迁移。
    结果:选择了20篇文章进行定性合成,其中,9人进行了荟萃分析。在对照牙齿中发现了更高的PCR,而防喷器,PPD,用水平终点线制备的牙齿周围的PAL较高,支持完全覆盖牙冠/FDP牙龈迁移结果是用水平终点线制备的牙齿周围牙周健康受损的最明显表现。
    结论:荟萃分析显示,与未经治疗的对照牙齿相比,用水平终点线支持牙冠和FDP制备的牙齿表现出更多的牙周病。
    BACKGROUND: The objective of this systematic review and meta-analysis was to analyze the periodontal behavior around teeth prepared with horizontal finishing crowns supporting fixed metal-ceramic and zirconia full coverage crowns and fixed partial dentures (FDPs).
    METHODS: An electronic search was conducted to locate relevant clinical trials in four databases: PubMed, Embase, Cochrane, and Scopus. A manual search was made in the reference sections of the articles identified for any additional articles. No restrictions were applied regarding year of publication or language. The following variables were considered in quantitative and qualitative analysis: probing pocket depth (PPD); probing attachment level (PAL); plaque control record (PCR); bleeding on probing (BOP); and gingival margin migration.
    RESULTS: Twenty articles were selected for qualitative synthesis, and of these, nine underwent meta-analysis. Higher PCR was found in control teeth, while BOP, PPD, and PAL were higher around teeth prepared with horizontal finishing lines supporting complete coverage crowns/FDPs Gingival migration results were the clearest manifestation of compromised periodontal health around teeth prepared with horizontal finishing lines.
    CONCLUSIONS: Meta-analysis revealed that teeth prepared with horizontal finishing lines supporting crowns and FDPs present more periodontal disorders than untreated control teeth.
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  • 文章类型: Journal Article
    The cancerous process is result of disturbed cell function. This is due to the accumulation of many genetic and epigenetic changes within the cell, expressed in the accumulation of chromosomal or molecular aberrations, which leads to genetic instability. It is difficult to assess the validity of individual aetiological factors, but it can be concluded that interaction of various risk factors has the largest contribution to the cancer development. Environmental, exogenous and endogenous factors as well as individual factors, including genetic predisposition contribute to the development of cancer. Epidemiological research on the development of malignant tumors has focused over the years on the determinants of environmental and genetic factors of cancer incidence and mortality rate. According to current state of knowledge, 80-90% of malignant tumors are caused by external environmental factors (carcinogens). Epidemiological studies have proved that the main factors responsible for the development of malignant neoplasia among humans are environmental factors arising from human behaviour. It has been confirmed that smoking, excessive alcohol consumption, diet, and reproductive behaviour are important for the development of malignant neoplasia in the human population. According to the World Health Organization, in 2020 we may expect about 10 million deaths, including 7-8 million in the developing countries, while this number in the developed countries will not change and will be 2-3 million. The aim this study was systematization of knowledge concerning the risk factors of malignant tumours and supplementing them with the latest research results.
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