Toxicology

毒理学
  • 文章类型: Journal Article
    背景:地理空间方法在环境暴露评估中很常见,并且越来越多地与健康数据集成在一起,以生成环境影响对公共卫生的综合模型。
    目标:我们的目标是回顾地理空间暴露模型和环境健康应用中健康数据整合的方法。
    方法:我们进行了文献综述和综合。
    结果:首先,我们讨论地理空间暴露数据和模型的关键概念和术语。第二,我们概述了地理空间暴露模型开发和健康数据集成的工作流程。第三,我们回顾了建模方法,包括基于接近度的,统计,和机械方法,跨越不同的暴露类型,比如空气质量,水质,气候,和社会经济因素。对于每种型号,我们提供描述,一般方程,以及环境暴露评估的示例应用。第四,我们讨论了用于整合地理空间暴露数据和健康数据的方法,例如将数据源与不同的空间和时间尺度链接的方法。第五,我们描述了支持这些工作流的开源工具的前景。
    BACKGROUND: Geospatial methods are common in environmental exposure assessments and increasingly integrated with health data to generate comprehensive models of environmental impacts on public health.
    OBJECTIVE: Our objective is to review geospatial exposure models and approaches for health data integration in environmental health applications.
    METHODS: We conduct a literature review and synthesis.
    RESULTS: First, we discuss key concepts and terminology for geospatial exposure data and models. Second, we provide an overview of workflows in geospatial exposure model development and health data integration. Third, we review modeling approaches, including proximity-based, statistical, and mechanistic approaches, across diverse exposure types, such as air quality, water quality, climate, and socioeconomic factors. For each model type, we provide descriptions, general equations, and example applications for environmental exposure assessment. Fourth, we discuss the approaches used to integrate geospatial exposure data and health data, such as methods to link data sources with disparate spatial and temporal scales. Fifth, we describe the landscape of open-source tools supporting these workflows.
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  • 文章类型: Journal Article
    背景:山豆根(STR),山豆根的干燥根和根茎。,通常用于治疗扁桃体炎和咽炎,喉咙疼痛和喉咙阻塞,牙龈肿胀和疼痛,等。在中国或其他亚洲国家。STR通常用作中药制剂中的核心草药,如“鼻咽灵片”,“复方无印良品颗粒”和“肝延灵注射液”,等。综述目的:本综述旨在从植物学角度对STR进行全面分析,传统使用,植物化学,民族药理学,药理学,药代动力学,毒理学和解毒策略,为今后的研究提供合理的应用。
    方法:研究涉及的信息来自各种电子资源,包括中国国家知识基础设施(CNKI),SciFinder,谷歌学者,PubMed,WebofScience,和中国硕士和博士学位论文。
    结果:到现在为止,STR中总共鉴定出333种化学成分,包括85种生物碱,124类黄酮,24个三萜,27三萜皂苷,34有机酸,8多糖,等。STR及其主要活性成分具有心血管保护作用,抗肿瘤活性,抗炎活性,解热活性,镇痛活性,抗菌活性,抗真菌活性,抗病毒活性,和肝保护活性,等。然而,STR对肝脏的毒性作用,神经,心,和胃肠道也被观察到。为了减轻这些风险,STR在使用前需要衰减,最常见的解毒方法是加工和与其他药物联合使用。对STR在体内的药代动力学以及含有STR的传统和临床处方进行了梳理。尽管STR具有潜在的治疗益处,进一步的研究是必要的,以阐明其肝脏毒性,特别是在体内,探索体内代谢等方面,分布,和机制。
    结论:这篇综述强调了STR的治疗潜力,并强调了在考虑临床应用之前解决其毒性问题的迫切需要。需要进一步研究以全面调查STR的毒理学特性,特别强调它的肝毒性和神经毒性。这样的研究努力有可能标准化STR的合理应用以获得最佳治疗结果。
    BACKGROUND: Sophorae tonkinensis Radix et Rhizoma (STR), the dried root and rhizome of Sophora tonkinensis Gagnep., is commonly used in the treatment of tonsillitis and pharyngitis, throat soreness and throat obstruction, swelling and aching of gum, etc. in China or other Asian countries. STR is usually used as the core herb in traditional Chinese medicine preparations, such as \"Biyanling Tablets\", \"Fufang Muji Granules\" and \"Ganyanling Injections\", etc. AIM OF THE REVIEW: This review aimed to provide a comprehensive analysis of STR in terms of botany, traditional use, phytochemistry, ethnopharmacology, pharmacology, pharmacokinetics, toxicology and detoxification strategy, to provide a rational application in future research.
    METHODS: The information involved in the study was gathered from a variety of electronic resources, including China National Knowledge Infrastructure (CNKI), SciFinder, Google Scholar, PubMed, Web of Science, and Chinese Masters and Doctoral Dissertations.
    RESULTS: Till now, a total of 333 chemical components have been identified in STR, including 85 alkaloids, 124 flavonoids, 24 triterpenes, 27 triterpene saponins, 34 organic acids, 8 polysaccharides, etc. STR and its main active constituents have cardiovascular protection, anti-tumor activity, anti-inflammatory activity, antipyretic activity, analgesic activity, antibacterial activity, antifungal activity, antiviral activity, and hepatoprotective activity, etc. However, toxic effects of STR on the liver, nerves, heart, and gastrointestinal tract have also been observed. To mitigate these risks, STR needs attenuation before use, with the most common detoxification methods being processing and combined use with other drugs. The pharmacokinetics of STR in vivo and traditional and clinical prescriptions containing STR have been sorted out. Despite the potential therapeutic benefits of STR, further research is warranted to elucidate its hepatotoxicity, particularly in vivo, exploring aspects such as in vivo metabolism, distribution, and mechanisms.
    CONCLUSIONS: This review serves to emphasize the therapeutic potential of STR and highlights the crucial need to address its toxicity concerns before considering clinical application. Further research is required to comprehensively investigate the toxicological properties of STR, with particular emphasis on its hepatotoxicity and neurotoxicity. Such research endeavors have the potential to standardize the rational application of STR for optimal therapeutic outcomes.
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  • 文章类型: Journal Article
    背景:Conioselinumanthriscoides(H.Boissieu)Pimenov&Kljuykov,又称川芎。是多年生伞形科草本植物,其干燥的根茎通常称为川芎。川芎在中医中应用广泛,特别是心脑血管和妇科疾病。然而,这些研究是分散的,没有评论可以集中这些研究的结果。作者通过收集有关化学,药理学,和川芎的毒理学在过去20年中发表在各种出版物上。
    目的:本文旨在总结目前川芎的实验研究,探讨其作用机制。
    方法:WebofScience,PubMed,CBM,CNKI,Medline,Embase,Elsevier,Springer,Wiley在线图书馆,学者,搜索了其他数据库,收集了近百项实验研究来总结这篇综述。
    结论:川芎由精油组成,萜烯,生物碱,多糖,有机酸,神经酰胺,和脑苷脂。它具有促进血液循环的功能,祛瘀,抗菌,抗病毒,让头脑平静入睡。现在可用于治疗心脑血管和妇科疾病,神经退行性疾病,牛皮癣,直肠癌,骨质疏松,和骨关节炎。
    结论:在过去的20年里,大量研究数据证实川芎含有丰富的有效代谢产物,具有巨大的药用潜力,并有广泛的有效治疗方法。
    BACKGROUND: Conioselinum anthriscoides (H. Boissieu) Pimenov & Kljuykov, also known as Ligusticum chuanxiong Hort. is a perennial Umbelliferae herb, whose dried rhizome commonly called Chuanxiong Rhizoma. Chuanxiong Rhizoma is widely used in TCM, especially for cardiocerebrovascular and gynecological diseases. However, these studies are scattered and there is no review that can centralize the results of these studies. The authors summarized this review by collecting research results on the chemical, pharmacological, and toxicological of Chuanxiong Rhizoma published in various publications over the past 20 years.
    OBJECTIVE: The purpose of this review is to summarize the current experimental studies on Chuanxiong Rhizoma and explore its mechanism of action.
    METHODS: Web of Science, PubMed, CBM, CNKI, Medline, Embase, Elsevier, Springer, Wiley Online Library, Scholar, and other databases were searched, and nearly one hundred experimental studies were collected to summarize this review.
    CONCLUSIONS: Chuanxiong Rhizoma is composed of essential oil, terpenes, alkaloids, polysaccharide, organic acids, ceramides, and cerebrosides. It has the functions of promoting blood circulation, removing blood stasis, antibacterial, antiviral, and calming the mind to sleep. Now it can be used to treat cardiocerebrovascular and gynecological diseases, neurodegenerative disease, psoriasis, rectal cancer, osteoporosis, and osteoarthritis.
    CONCLUSIONS: In the past 20 years, a large number of research data have confirmed that Chuanxiong Rhizoma contains rich effective metabolites, has huge medicinal potential, and has a wide range of effective treatments.
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  • 文章类型: Journal Article
    饮酒增加了许多慢性健康不良后果的风险,如肝炎,恶性肿瘤,以及灾难性的后果,例如以致命伤害告终的道路交通事故。在许多法医案件中,不同体液的生化和毒理学分析对于确定死亡原因和死后间隔至关重要。血,尿液,和玻璃体液是在任何毒理学分析中检测酒精的最有价值的体液。酒精是造成全球广泛发病率和死亡率的原因。血液酒精浓度(BAC)是调查各种犯罪和事故现场的必要毒理学测试。本研究全面探索了人口统计学特征,BAC分布,以及死后和生活病例中酒精浓度的相关性。验尸案例(N=166)揭示了有趣的人口统计学模式,年分布有显著变化,国籍,性别,年龄组,职业,吸烟习惯,死亡的地方,和精神病史。生活病例(N=483)表现出不同的人口统计特征,强调年份分布的差异,国籍,性别,年龄组,和吸烟习惯。对BAC分布的分析揭示了死后和生活案例中的不同模式,为每组不同BAC水平的患病率提供有价值的见解。相关分析揭示了死后病例中各种生物样品中酒精浓度之间的强关联,强调血液的相互依存,玻璃体,和尿液酒精浓度。相反,生活病例显示血液和尿液酒精浓度之间呈中度正相关。比较分析显示,死后和活体之间的平均酒精浓度存在显着差异,提示酒精代谢和分布的变化。这些发现强调了在法医和临床环境中解释酒精浓度时考虑时间因素的重要性。总之,这项研究通过描述人口统计概况,增强了我们对酒精相关事件的理解,BAC分布,以及不同生物样本之间的相关性。这些见解对于完善调查和临床方法至关重要,为更广泛的法医学和公共卫生领域做出贡献。
    Alcohol use upsurges the risk for many chronic ill-health consequences such as hepatitis, malignancies, and disastrous outcomes like road traffic accidents ending in fatal injuries. Biochemical and toxicological analysis of different body fluids is crucial for identifying the cause of death and postmortem interval in many forensic cases. Blood, urine, and vitreous fluid are the most valuable body fluids for detecting alcohol during any toxicological analysis. Alcohol is responsible for widespread morbidity and mortality worldwide. Blood alcohol concentration (BAC) is a necessary toxicological test to investigate various crime and accident scenes. This study comprehensively explores the demographic characteristics, BAC distribution, and correlations of alcohol concentrations in postmortem and living cases. Postmortem cases (N = 166) reveal intriguing demographic patterns, with notable variations in year distribution, nationality, sex, age groups, occupation, smoking habits, place of death, and psychiatric history. Living cases (N = 483) exhibit distinct demographic profiles, emphasizing differences in year distribution, nationality, sex, age groups, and smoking habits. Analysis of BAC distribution reveals diverse patterns in both postmortem and living cases, providing valuable insights into the prevalence of different BAC levels in each group. Correlation analyses unveil strong associations between alcohol concentrations in various biological samples in postmortem cases, highlighting the interdependence of blood, vitreous, and urine alcohol concentrations. Conversely, living cases display a moderate positive correlation between blood and urine alcohol concentrations. Comparative analyses showcase significant differences in mean alcohol concentrations between postmortem and living cases, suggesting variations in alcohol metabolism and distribution. These findings underscore the importance of considering temporal factors in interpreting alcohol concentrations in forensic and clinical contexts. In conclusion, this study enhances our understanding of alcohol-related incidents by delineating demographic profiles, BAC distributions, and correlations between different biological samples. Such insights are crucial for refining investigative and clinical approaches, contributing to the broader fields of forensic science and public health.
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  • 文章类型: Journal Article
    近年来,动脉粥样硬化性心血管疾病的患病率和死亡率不仅显示出不可忽视的持续上升,但也已成为一个紧迫的社会健康问题,需要紧急关注。虽然介入手术和药物治疗提供了显著的治疗效果,它们经常伴随着常见的副作用。栀子苷,从中药栀子中提取的活性成分,在管理心脏病方面显示出希望。这篇综述全面概述了栀子苷对动脉粥样硬化的潜在药理机制。栀子苷表现出一系列有益的作用,包括缓解炎症,抑制巨噬细胞泡沫细胞的发育,改善脂质代谢,预防血小板聚集和血栓形成。它还展示了线粒体保护,抗凋亡作用,和自噬的调节。此外,栀子苷通过维持机体的抗氧化和氧化平衡,具有改善氧化应激和内质网应激的潜能。此外,这篇综述全面详细介绍了栀子苷的生物学特性,包括提取和纯化的方法,以及其药代动力学和毒理学特征。它进一步讨论了相关生物制药的临床应用,强调栀子苷在预防和治疗动脉粥样硬化性心血管疾病中的潜力。此外,它突出了当前研究的局限性,旨在为未来的研究提供见解。
    In recent years, the prevalence and fatality rates of atherosclerotic cardiovascular disease have not only shown a consistent rise that cannot be ignored, but have also become a pressing social health problem that requires urgent attention. While interventional surgery and drug therapy offer significant therapeutic results, they often come with common side effects. Geniposide, an active component extracted from the Chinese medicine Gardenia jasminoides Ellis, shows promise in the management of cardiac conditions. This review comprehensively outlines the underlying pharmacological mechanisms by which geniposide exerts its effects on atherosclerosis. Geniposide exhibits a range of beneficial effects including alleviating inflammation, inhibiting the development of macrophage foam cells, improving lipid metabolism, and preventing platelet aggregation and thrombosis. It also demonstrates mitochondrial preservation, anti-apoptotic effects, and modulation of autophagy. Moreover, geniposide shows potential in improving oxidative stress and endoplasmic reticulum stress by maintaining the body\'s antioxidant and oxidative balance. Additionally, this review comprehensively details the biological properties of geniposide, including methods of extraction and purification, as well as its pharmacokinetics and toxicological characteristics. It further discusses the clinical applications of related biopharmaceuticals, emphasizing the potential of geniposide in the prevention and treatment of atherosclerotic cardiovascular diseases. Furthermore, it highlights the limitations of current research, aiming to provide insights for future studies.
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  • 文章类型: Published Erratum
    [这更正了文章DOI:10.3389/fnut.202.929554。].
    [This corrects the article DOI: 10.3389/fnut.2022.929554.].
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  • 文章类型: Journal Article
    在东南亚使用了几代人,在过去的几十年里,kratom在美国和其他地方越来越受欢迎。源自Mitragynaspeciosa,kratom制剂包括叶子,茶,粉末,胶囊,提取物可能会产生兴奋剂,镇痛药,以及基于kratom关键生物碱浓度的剂量依赖性发生的类阿片样作用,mitragynine和7-羟基mitragynine。这种影响是kratom作为阿片类药物的减害替代品和戒断治疗的潜力的原因。但这些特性也与耐受性发展和成瘾潜力有关。鉴于mitragynine和7-羟基mitragynine对细胞色素P450亚型和阿片受体的活性,多种物质使用者之间的不利影响是一个令人担忧的问题。综述了有关kratom毒理学的最新文献,包括产品生物碱浓度,体外和体内数据,流行病学证据,和人类病例数据。在暴露评估框架内讨论了kratom产品的潜在危害和好处,并提出了行业建议。目前的证据表明,kratom可能对某些人具有治疗潜力,并且产品具有典型的风险,非多物质使用。然而,很少有研究发现生物碱的剂量会对人或动物产生不良反应.需要这样的研究来为未来对kratom风险和收益的评估提供信息。
    Used in Southeast Asia for generations, kratom gained popularity in the United States and elsewhere over the past several decades. Derived from Mitragyna speciosa, kratom preparations including leaves, teas, powders, capsules, and extracts may yield stimulant, analgesic, and opioid-like effects that occur dose-dependently based on concentrations of kratom\'s key alkaloids, mitragynine and 7-hydroxymitragynine. Such effects are responsible for kratom\'s potential as a reduced-harm alternative to opiates and as a withdrawal treatment. But these properties are also associated with tolerance development and addictive potential. Given mitragynine and 7-hydroxymitragynine activity on cytochrome P450 isoforms and opioid receptors, adverse effects among polysubstance users are a concern. Current literature on the toxicology of kratom is reviewed, including product alkaloid concentrations, in vitro and in vivo data, epidemiological evidence, and human case data. The potential harms and benefits of kratom products are discussed within an exposure assessment framework, and recommendations for industry are presented. Current evidence indicates that kratom may have therapeutic potential in some persons and that products present few risks with typical, non-polysubstance use. However, few studies identified alkaloid doses at which adverse effects were expected in humans or animals. Such research is needed to inform future assessments of kratom\'s risks and benefits.
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  • 文章类型: Journal Article
    脱水秋葵碱甲酯(AEME),也被称为甲基秋黄碱,是吸食可卡因的主要热解产物(可卡因基质糊剂或basuco,裂纹,或freebase)。这篇综述旨在综合有关AEME的毒物动力学和毒物动力学作用的现有科学证据。搜索发表在ScienceDirect上的科学论文,Scopus,并在2024年5月之前进行了MEDLINE。二十四篇,包括13个实验动物研究,2个临床试验,和3项观察性研究,被审查了。AEME容易沉积在肺泡中;它的吸收与可卡因结合会改善,并具有广泛的组织分布。它主要在肝脏代谢,半衰期约为一小时,主要通过尿液排出。此外,AEME作为M1和M3毒蕈碱胆碱能受体的部分激动剂,影响多巴胺能系统的神经适应,增加活性氧的产生,谷胱甘肽相关酶的活性失衡,降低褪黑激素水平,影响其抗氧化调节特性。当与可卡因混合时,AEME激活caspase-9的非凋亡途径,通过caspase-8的凋亡途径,在可卡因的一半时间内降低神经元活力。AEME在可卡因毒性和AEME本身中起着重要作用。
    Anhydroecgonine Methyl Ester (AEME), also known as methylecgonidine, is the main pyrolysis product of smoking cocaine (cocaine base paste or basuco, crack, or freebase). This review aims to synthesize the available scientific evidence on the toxicokinetic and toxicodynamic effects of AEME. A search of scientific articles published in Science Direct, SCOPUS, and MEDLINE up to May 2024 was conducted. Twenty-four articles, including 13 experimental animal studies, 2 clinical trials, and 3 observational studies, were reviewed. AEME is readily deposited in the alveoli; its absorption improves in combination with cocaine and has a broad tissue distribution. It is metabolized primarily in the liver, with a half-life of approximately one hour, and is mainly excreted through urine. Moreover, AEME acts as a partial agonist of M1 and M3 muscarinic cholinergic receptors, influences dopaminergic system neuroadaptation, increases the production of reactive oxygen species, imbalances the activity of glutathione-associated enzymes, and reduces melatonin levels, affecting its antioxidant regulatory properties. When combined with cocaine, AEME activates the non-apoptotic pathway of caspase-9 and then, the apoptotic pathway via caspase-8, reducing neuronal viability in half the time of cocaine. AEME plays a significant role in cocaine toxicity and AEME itself.
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  • 文章类型: Journal Article
    益母草是益母草属特有的生物碱,具有许多生物活性,如子宫收缩,抗炎,抗氧化,细胞凋亡的调节,抗肿瘤,血管生成,抗血小板聚集,和抑制血管收缩。本文总结了提取方法,合成途径,生物合成机制,药代动力学特性,在各种疾病的药理作用,毒理学,和益母草的临床试验。为了促进成功过渡到临床应用,需要在几个关键领域加大力度:益母草的结构修饰以优化其性能,全面的药代动力学评估,以了解其在体内的行为,彻底的机械研究,以阐明它是如何在分子水平上工作的,严格的安全评估和毒理学调查,以确保患者的健康,并精心进行临床试验,以验证其疗效和安全性。
    Leonurine is an alkaloid unique to the Leonurus genus, which has many biological activities, such as uterine contraction, anti-inflammation, anti-oxidation, regulation of cell apoptosis, anti-tumor, angiogenesis, anti-platelet aggregation, and inhibition of vasoconstriction. This paper summarizes the extraction methods, synthetic pathways, biosynthetic mechanisms, pharmacokinetic properties, pharmacological effects in various diseases, toxicology, and clinical trials of leonurine. To facilitate a successful transition into clinical application, intensified efforts are required in several key areas: structural modifications of leonurine to optimize its properties, comprehensive pharmacokinetic assessments to understand its behavior within the body, thorough mechanistic studies to elucidate how it works at the molecular level, rigorous safety evaluations and toxicological investigations to ensure patient wellbeing, and meticulously conducted clinical trials to validate its efficacy and safety profile.
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  • 文章类型: Journal Article
    考虑到环境的持久性,生物累积的潜力,全氟辛酸(PFOA)和全氟辛烷磺酸(PFOS)的毒性,科学界越来越重视研究它们的毒理学和降解方法。本文综述了PFOA和PFOS的毒理作用和降解方法的最新研究进展。它们对肝脏的不良影响,神经系统,男性生殖系统,遗传学,和发展是详细的。此外,PFOA和PFOS的降解技术,包括光化学,光催化,和电化学方法,进行了分析和比较,强调了这些技术在环境修复方面的潜力。PFOA和PFOS参与微生物的生物转化途径和机制,植物,和酶也被提出。作为PFOA和PFOS的主要绿色降解途径,生物降解使用特定的微生物,通过氧化还原反应从环境中去除PFOA和PFOS的植物或酶,酶催化和其他途径。目前,对PFOA和PFOS的生物降解进行的研究很少。然而,这种降解技术因其特异性而有前途,成本效益,和易于实施。此外,本文介绍了PFOA和PFOS降解的新材料/新方法。这些新的材料/方法有效地提高了PFOA和PFOS的降解效率,为PFOA和PFOS的降解提供了新的思路和工具。这些信息可以帮助研究人员识别该领域的缺陷和差距,这可以促进创新研究思路的制定。
    Given environmental persistence, potential for bioaccumulation, and toxicity of Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), the scientific community has increasingly focused on researching their toxicology and degradation methods. This paper presents a survey of recent research advances in the toxicological effects and degradation methods of PFOA and PFOS. Their adverse effects on the liver, nervous system, male reproductive system, genetics, and development are detailed. Additionally, the degradation techniques of PFOA and PFOS, including photochemical, photocatalytic, and electrochemical methods, are analyzed and compared, highlighted the potential of these technologies for environmental remediation. The biotransformation pathways and mechanisms of PFOA and PFOS involving microorganisms, plants, and enzymes are also presented. As the primary green degradation pathway for PFOA and PFOS, Biodegradation uses specific microorganisms, plants or enzymes to remove PFOA and PFOS from the environment through redox reactions, enzyme catalysis and other pathways. Currently, there has been a paucity of research conducted on the biodegradation of PFOA and PFOS. However, this degradation technology is promising owing to its specificity, cost-effectiveness, and ease of implementation. Furthermore, novel materials/methods for PFOA and PFOS degradation are presented in this paper. These novel materials/methods effectively improve the degradation efficiency of PFOA and PFOS and provide new ideas and tools for the degradation of PFOA and PFOS. This information can assist researchers in identifying flaws and gaps in the field, which can facilitate the formulation of innovative research ideas.
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