mechanisms of action

行动机制
  • 文章类型: Journal Article
    长期以来,草药在预防和治疗各种人类疾病方面发挥着重要作用,并得到了广泛的研究。然而,HM代谢物中存在的复杂性及其不明确的作用机制对中药(TCM)的现代化提出了重大挑战。在过去的二十年里,质谱成像(MSI)作为一种强大的分析技术,能够同时执行定性,定量,和定位分析,无需复杂的样品预处理。随着技术解决方案的进步,MSI已广泛应用于HM领域。MSI,无标记离子成像技术可以全面绘制植物天然组织中HM代谢物的空间分布图,从而促进HM的有效质量控制。此外,MSI提供的动物组织内小分子内源性代谢物的空间维度信息也可以作为揭示HMs药理和毒理学机制的补充。我们概述了三种最常见的MSI技术。此外,重点介绍了HM中的代表性应用。最后,我们讨论了当前的挑战,并提出了几种潜在的解决方案。我们希望对最近发现的总结将有助于MSI在探索HMs的代谢物和作用机制中的应用。
    Herbal medicines (HMs) have long played a pivotal role in preventing and treating various human diseases and have been studied widely. However, the complexities present in HM metabolites and their unclear mechanisms of action have posed significant challenges in the modernization of traditional Chinese medicine (TCM). Over the past two decades, mass spectrometry imaging (MSI) has garnered increasing attention as a robust analytical technique that enables the simultaneous execution of qualitative, quantitative, and localization analyses without complex sample pretreatment. With advances in technical solutions, MSI has been extensively applied in the field of HMs. MSI, a label-free ion imaging technique can comprehensively map the spatial distribution of HM metabolites in plant native tissues, thereby facilitating the effective quality control of HMs. Furthermore, the spatial dimension information of small molecule endogenous metabolites within animal tissues provided by MSI can also serve as a supplement to uncover pharmacological and toxicological mechanisms of HMs. In the review, we provide an overview of the three most common MSI techniques. In addition, representative applications in HM are highlighted. Finally, we discuss the current challenges and propose several potential solutions. We hope that the summary of recent findings will contribute to the application of MSI in exploring metabolites and mechanisms of action of HMs.
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  • 文章类型: Journal Article
    多酚,包括酚类物质,生物碱,和萜烯,是水果中常见的次生代谢产物,蔬菜,和饮料,比如茶,咖啡,葡萄酒,巧克力,和啤酒。这些化合物由于其潜在的健康益处而获得了相当大的关注和市场需求。然而,由于它们的低吸收率和降低的组织分布效率,它们的应用受到限制。工程多酚-蛋白质复合物或缀合物可以增强抗氧化性能,生物利用度,和稳定的多酚和提高消化酶的水解,特定于目标的交付,和整体生物学功能。复杂的多酚,比如黑色素,单宁,和ellagitannins,可以促进肠道菌群平衡,增强抗氧化防御,改善整体人类健康。尽管有这些好处,在用作功能性食品添加剂或补充剂之前,必须彻底评估多酚复合物的安全性。这篇综述详细概述了大分子多酚的类型,它们的化学成分,以及它们在食物丰富中的作用。复杂多酚作为抗氧化作用的机制,抗炎,和抗癌剂也被讨论过。
    Polyphenols, including phenolics, alkaloids, and terpenes, are secondary metabolites that are commonly found in fruits, vegetables, and beverages, such as tea, coffee, wine, chocolate, and beer. These compounds have gained considerable attention and market demand because of their potential health benefits. However, their application is limited due to their low absorption rates and reduced tissue distribution efficiency. Engineering polyphenol-protein complexes or conjugates can enhance the antioxidant properties, bioavailability, and stability of polyphenols and improve digestive enzyme hydrolysis, target-specific delivery, and overall biological functions. Complex polyphenols, such as melanin, tannins, and ellagitannins, can promote gut microbiota balance, bolster antioxidant defense, and improve overall human health. Despite these benefits, the safety of polyphenol complexes must be thoroughly evaluated before their use as functional food additives or supplements. This review provides a detailed overview of the types of macromolecular polyphenols, their chemical composition, and their role in food enrichment. The mechanisms by which complex polyphenols act as antioxidative, anti-inflammatory, and anticancer agents have also been discussed.
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  • 文章类型: Journal Article
    骨折愈合是骨骼完整性和功能恢复必不可少的动态过程。然而,患者年龄等因素,合并症,骨折的严重程度会阻碍这一过程,导致延迟愈合或不愈合。富血小板血浆(PRP)已成为增强骨折愈合的有希望的治疗选择。PRP是一种自体血液产品,含有浓缩的血小板混合物,生长因子,和已知促进组织再生和修复的细胞因子。这篇全面的综述概述了骨折愈合过程,强调及时有效的骨修复的重要性。我们讨论了PRP在骨折愈合中据称功效的潜在机制,利用临床前和临床证据。动物模型的临床前研究已经证明了PRP加速骨折愈合的能力,刺激成骨,增强骨骼再生。临床研究结果好坏参半,一些报告在加速愈合和改善功能方面取得了积极成果,而其他人则没有显示出比标准治疗明显的益处。影响PRP疗效的因素,比如管理的时机,PRP浓度,和患者特定的变量,也检查了。此外,讨论了与PRP治疗相关的安全性考虑因素和潜在不良反应.尽管临床前发现很有希望,标准化PRP配方仍然面临挑战,优化管理协议,并解决有关其长期疗效和安全性的悬而未决的问题。这篇综述旨在提供对PRP在骨折愈合中的治疗潜力的见解。通知未来的研究方向和指导临床实践。
    Fracture healing is a dynamic process essential for the restoration of bone integrity and function. However, factors such as patient age, comorbidities, and the severity of the fracture can impede this process, leading to delayed healing or nonunion. Platelet-rich plasma (PRP) has emerged as a promising therapeutic option for enhancing fracture healing. PRP is an autologous blood product containing a concentrated mixture of platelets, growth factors, and cytokines known to promote tissue regeneration and repair. This comprehensive review provides an overview of the fracture healing process, emphasizing the importance of timely and efficient bone repair. We discuss the mechanisms underlying the purported efficacy of PRP in fracture healing, drawing upon both preclinical and clinical evidence. Preclinical studies in animal models have demonstrated the ability of PRP to accelerate fracture healing, stimulate osteogenesis, and enhance bone regeneration. Clinical studies have yielded mixed results, with some reporting positive outcomes in terms of accelerated healing and improved functional outcomes, while others have shown no significant benefits over standard treatments. Factors influencing the efficacy of PRP, such as timing of administration, PRP concentration, and patient-specific variables, are also examined. Furthermore, safety considerations and potential adverse effects associated with PRP therapy are discussed. Despite the promising preclinical findings, challenges remain in standardizing PRP formulations, optimizing administration protocols, and addressing unanswered questions regarding its long-term efficacy and safety. This review aims to provide insights into the therapeutic potential of PRP in fracture healing, informing future research directions and guiding clinical practice.
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  • 文章类型: Journal Article
    全球范围内,乳腺癌(BC)在恶性疾病中患病率最高。BC也是女性死亡的主要原因。值得注意的是,BC发病率一直以每年约2.2%的增长率持续增加。持续BC是世界范围内的主要公共卫生问题。因此,应该紧急开发新的化疗药物来对抗这种致命的疾病。香豆素具有有趣的结构和机理变化,在几种形式的BC中表现出有希望的活性,包括具有多重耐药性的BCs。特别是,由香豆素和一种或多种抗BC药效团组成的香豆素杂种可以同时靶向BC细胞中的不同生物组分。因此,香豆素杂种是有用的支架,可以帮助提高香豆素的抗BC功效,减少副作用,改善药代动力学,尽量减少药物-药物相互作用,规避耐药性。这次审查,其中对2020年至今发表的文章进行了评估,突出显示对乳腺癌具有治疗作用的香豆素杂种的景观。这些发现可以帮助对新型抗乳腺癌疗法的进一步研究。
    Globally, breast cancer (BC) has the highest prevalence among malignant diseases. BC is also the primary cause of death among women. Notably, BC morbidity has been increasing continuously at an approximate growth rate of 2.2% per year. Persistent BC is a major public health issue worldwide. Consequently, novel chemotherapeutic agents to combat this lethal disease should be developed urgently. Coumarins with interesting structural and mechanistic variations exhibit promising activity in several forms of BC, including BCs with multidrug resistance. In particular, coumarin hybrids composed of coumarin and one or more anti-BC pharmacophores can target different biological components in BC cells simultaneously. Thus, coumarin hybrids are useful scaffolds that can help improve the anti-BC efficacy of coumarins, reduce side effects, improve pharmacokinetics, minimize drug-drug interactions, and circumvent drug resistance. This review, in which articles published from 2020 to the present day have been evaluated, highlights the landscape of coumarin hybrids that exhibit therapeutic effects against breast cancer. These findings can aid further investigations on novel antibreast-cancer therapeutics.
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  • 文章类型: Journal Article
    大蒜(AlliumsativumL.)是一种广泛丰富的香料,以其香气和辛辣的味道而闻名。它含有几种生物活性化合物,为人类提供广泛的健康益处,包括那些与营养有关的,生理学,和医学。因此,大蒜被认为是最有效的疾病预防饮食之一。许多体外和体内研究报道了含硫化合物,大蒜素和ajoene,因为它们有效的抗癌,抗糖尿病,抗炎,抗氧化剂,抗菌,免疫增强,和心脏保护特性。作为生物活性化合物的丰富天然来源,包括多糖,皂苷,单宁,芳樟醇,香叶醇,phellandrene,β-phellandrene,ajoene,Alliin,S-烯丙基-巯基半胱氨酸,和β-phellandrene,大蒜具有许多治疗性应用,可能在针对各种人类疾病的药物开发中发挥作用。在当前的审查中,讨论了大蒜及其主要生物活性成分及其生物学功能和作用机制,以及它们在疾病预防和治疗中的作用。
    Garlic (Allium sativum L.) is a widely abundant spice, known for its aroma and pungent flavor. It contains several bioactive compounds and offers a wide range of health benefits to humans, including those pertaining to nutrition, physiology, and medicine. Therefore, garlic is considered as one of the most effective disease-preventive diets. Many in vitro and in vivo studies have reported the sulfur-containing compounds, allicin and ajoene, for their effective anticancer, anti-diabetic, anti-inflammatory, antioxidant, antimicrobial, immune-boosting, and cardioprotective properties. As a rich natural source of bioactive compounds, including polysaccharides, saponins, tannins, linalool, geraniol, phellandrene, β-phellandrene, ajoene, alliin, S-allyl-mercapto cysteine, and β-phellandrene, garlic has many therapeutic applications and may play a role in drug development against various human diseases. In the current review, garlic and its major bioactive components along with their biological function and mechanisms of action for their role in disease prevention and therapy are discussed.
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  • 文章类型: Journal Article
    多酚化合物在当今的科学中引起了极大的兴趣。自然,它们以许多不同的形式出现在植物和其他来源中。它们广泛的生物活性引起了科学界的关注。酚类化合物的来源之一是刺痛荨麻(UrticadioicaL.),世界上几乎所有地方的一种常见植物。悠久的利用传统和有趣的化学概况使这种植物成为一个迷人而广泛的研究对象。化学特征还允许这种植物用作食物和食物中的色素来源,Pharmaceutical,和化妆品行业。以前进行的研究发现根中的酚酸和多酚化合物,茎,和刺痛的荨麻叶。通常使用不同的提取技术从叶子中分离它们。获得的提取物用于进一步研究生物活性或配制不同的功能性食品。这项研究旨在收集有关该植物的所有可用知识,其化学成分,和生物活性,并总结这些知识,特别注意多酚化合物及其作用的活性和机理。
    Polyphenolic compounds are of great interest in today\'s science. Naturally, they occur in plants and other sources in many different forms. Their wide range of biological activity has attracted the attention of the scientific community. One of the sources of phenolic compounds is stinging nettle (Urtica dioica L.), a common plant in almost all parts of the world. A long tradition of utilization and an interesting chemical profile make this plant a fascinating and extensive object of study. The chemical profile also allows this plant to be used as a food and a pigment source in the food, pharmaceutical, and cosmetic industries. Previously conducted studies found phenolic acids and polyphenolic compounds in root, stalk, and stinging nettle leaves. Different extraction techniques were usually used to isolate them from the leaves. Obtained extracts were used to investigate biological activity further or formulate different functional food products. This study aimed to collect all available knowledge about this plant, its chemical composition, and biological activity and to summarize this knowledge with particular attention to polyphenolic compounds and the activity and mechanisms of their actions.
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  • 文章类型: Journal Article
    饮食是预防和管理肥胖的一个可改变的危险因素,各种食物有可能通过调节与疾病病理有关的不同途径来帮助控制肥胖。我们对文献进行了系统的回顾,使用CINAHL,PubMed,和谷歌学者,专注于粮食作物和功能性食品的抗肥胖潜力,以及它们的作用机制和临床证据。确定了64篇文章,其中41人调查了粮食作物,而23人调查了功能性产品。粮食作物,比如谷物,蔬菜,水果,蘑菇,海藻,豆类,草药,香料,和可可种子,通过抑制α-淀粉酶和α-葡萄糖苷酶等酶改变糖脂代谢等机制具有抗肥胖作用,刺激产热脂肪的生物能量学,调节肠道微生物群,并抑制脂肪生成和储存。此外,开发功能茶,饮料,酸奶通过相似或不同的机制具有抗肥胖作用,例如增加能量消耗和饱腹感,抑制脂肪生成和脂肪分解,改善葡萄糖和脂质代谢,改变荷尔蒙分泌.这篇综述再次强调了食物在控制肥胖中的重要性。并强调了这些探索的食物发挥其抗肥胖作用的独特方法。总之,食品是对抗肥胖的安全有效手段,没有常规药物的副作用,这可以帮助告知饮食选择,协助专业人士提供更准确的建议,并使人们更好地了解食物及其对公众整体健康的影响。这种方法将根除全球疾病,特别是如果更多的未充分利用和本土粮食作物被广泛研究。
    Diet is a modifiable risk factor in the prevention and management of obesity, and various foods have the potential to aid in obesity management by modulating different pathways involved in the disease\'s pathology. We performed a systematic review of literature, using CINAHL, PubMed, and Google Scholar, focusing on the antiobesity potential of foods crops and functional food products, and their mechanisms of action and clinical evidence. Sixty-four articles were identified, of which 41 investigated food crops, while 23 investigated functional products. Food crops, such as cereals, vegetables, fruits, mushrooms, seaweeds, legumes, herbs, spices, and cocoa seeds, have antiobesity effects through mechanisms such as altering the metabolism of glucolipids by inhibiting enzymes like α-amylase and α-glucosidase, stimulating the bioenergetics of thermogenic fat, modulating gut microbiota, and inhibiting lipogenesis and storage. In addition, developed functional teas, beverages, and yoghurt have antiobesity effects through similar or different mechanisms, such as enhancing energy expenditure and satiety, suppressing adipogenesis and lipolysis, improving glucose and lipid metabolism, and altering hormonal secretion. This review reemphasized the significance of food in the control of obesity, and highlights the distinct methods these explored foods exert their antiobesity effects. In conclusion, foods are safe and effective means of combating obesity without the side effects of conventional drugs, which can help inform dietary choices, assist professionals in providing more accurate advice, and also lead to better understanding of food and its effect on overall health of the public. This approach will eradicate global diseases, especially if more underutilized and indigenous food crops are extensively researched.
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  • 文章类型: Journal Article
    迷幻化合物,包括psilocybin,LSD,DMT,和5-MeO-DMT都是5-羟色胺(5-HT)2A受体激动剂,正在研究作为潜在的治疗方法。本综述旨在总结这四种化合物和美斯卡林的临床研究现状,以指导未来的研究。他们的作用机制,药代动力学,药效学,功效,和安全性进行了审查。虽然有治疗适应症的证据,除了psilocybin治疗抑郁症,仍然相对稀缺,我们注意到除了作用持续时间之外的迷幻作用没有差异。因此,尚不清楚不同的受体谱是否有助于这些化合物的治疗潜力。需要更多的研究来区分这些化合物,以告知哪些化合物可能最适合不同的治疗用途。
    Psychedelic compounds, including psilocybin, LSD (lysergic acid diethylamide), DMT (N,N -dimethyltryptamine), and 5-MeO-DMT (5-methoxy-N,N-dimethyltryptamine), all of which are serotonin 2A receptor agonists, are being investigated as potential treatments. This review aims to summarize the current clinical research on these 4 compounds and mescaline to guide future research. Their mechanism(s) of action, pharmacokinetics, pharmacodynamics, efficacy, and safety were reviewed. While evidence for therapeutic indications, with the exception of psilocybin for depression, is still relatively scarce, we noted no differences in psychedelic effects beyond effect duration. Therefore, it remains unclear whether different receptor profiles contribute to the therapeutic potential of these compounds. More research is needed to differentiate these compounds in order to inform which compounds might be best for different therapeutic uses.
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  • 文章类型: Journal Article
    小茴香是一种应用广泛、药理作用多样的中药。学者们对其相关临床应用进行了广泛的研究,尤其是其在癌症治疗中的显著疗效。本文深入研究了化学成分和鉴定,药理作用,和毒性,以及最小着力点的安全,为相应的临床应用和产品开发奠定基础。此外,随着全球学者对此类临床应用进行了广泛的研究并取得了重大进展,未来开发和利用小茴香的活性成分创造新药具有重要的临床意义。
    Centipeda minima is a traditional Chinese medicine with wide applications and diverse pharmacological effects. Scholars have conducted extensive studies on its relevant clinical applications, especially its remarkable efficacy in cancer treatment. This paper thoroughly investigates the chemical composition and identification, pharmacological effects, and toxicity, along with the safety of Centipeda minima, so as to lay the foundation for corresponding clinical applications and product development. Furthermore, as global scholars have conducted extensive research on such clinical applications and made significant progress, the future development and utilization of Centipeda minima\'s active ingredients to create novel drugs are of great clinical significance.
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  • 文章类型: Journal Article
    补品中草药是传统中药的一种,它的主要功能是恢复身体失去的营养,提高活动水平,增加抗病性,减轻体力消耗。人体的免疫力可以通过其多糖成分来增强,也有强大的免疫系统保护作用。多项研究表明,补品中草药多糖能提高机体对肿瘤细胞的免疫应答,病毒,细菌,和其他有害物质。然而,滋补中草药中使用的各种多糖增强免疫功能的调节机制各不相同。本研究考察了不同补品中草药多糖对免疫器官的调节作用,免疫细胞,和免疫相关的细胞因子。探讨其免疫应答机制,了解补益中草药多糖对免疫功能影响的异同,为今后开发补益中草药多糖产品奠定基础。
    Tonic Chinese herbal medicine is a type of traditional Chinese medicine, and its primary function is to restore the body\'s lost nutrients, improve activity levels, increase disease resistance, and alleviate physical exhaustion. The body\'s immunity can be strengthened by its polysaccharide components, which also have a potent immune-system-protecting effect. Several studies have demonstrated that tonic Chinese herbal medicine polysaccharides can improve the body\'s immune response to tumor cells, viruses, bacteria, and other harmful substances. However, the regulatory mechanisms by which various polysaccharides used in tonic Chinese herbal medicine enhance immune function vary. This study examines the regulatory effects of different tonic Chinese herbal medicine polysaccharides on immune organs, immune cells, and immune-related cytokines. It explores the immune response mechanism to understand the similarities and differences in the effects of tonic Chinese herbal medicine polysaccharides on immune function and to lay the foundation for the future development of tonic Chinese herbal medicine polysaccharide products.
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