bioactivities

生物活性
  • 文章类型: Journal Article
    背景:将植物用于医疗目的的传统用途,叫做植物医学,已知可以缓解疼痛。在孟加拉国,Chakma土著社区一直在使用Allophylusvillosus和Mycetiasinensis治疗各种类型的疼痛和炎症。
    目的:这项研究的目的是使用各种方法(例如体外)评估这些植物缓解疼痛的有效性及其抗氧化特性,在体内,和计算技术。此外,调查还将分析这些植物中存在的植物化学物质。
    方法:我们对瑞士白化病小鼠进行了体内镇痛实验,并对COX-2和15-LOX-2酶进行了计算机抑制活性。DPPH的评估,反自由基活动(ARA)FRAP,H2O2自由基清除,降低两种植物的功率进行显著的%抑制,具有可耐受的IC50。通过FTIR和GC-MS分析证明了植物化学物质官能团的定性筛选。
    结果:在瑞士白化病小鼠中,乙酸乙酯(EtOAc)分馏的冬青提取物以及乙醇提取物和所有分馏的Allophoisvillosus提取物均报告了显着百分比(%)的扭体抑制作用(p<0.05)浓度为250mg和500mg,用于观察扭体镇痛效果。在硅片观察中,根据GC-MS进行了分子对接研究,产生了两种植物的43种植物化合物,以通过靶向COX-2和15-LOX-2酶来筛选其结合亲和力。因此,为了评估和确定分选的植物化合物的有效性,ADMET(吸收,Distribution,代谢,排泄,和毒性)调查,QM(量子力学)的DFT(密度泛函理论),并进行了MDS(分子动力学模拟)。作为结果,化合物如5-(2,4-二叔丁基苯氧基)-5-氧代戊酸;2,4-二叔丁基苯基5-羟基戊酸酯;3,3-二苯基-5-甲基-3H-吡唑;2-O-(6-甲基庚烷-2-基)1-O-辛基苯-二羧酸酯和二辛-3-辛基苯-1,2-甲基羧酸酯。
    结论:来自A.villosus&M.的植物化合物sinensis表现出对人类15-脂氧合酶2和环氧合酶2蛋白的潜在拮抗活性。来自这些植物的有效酯化合物具有更潜在的抗伤害感受活性,将来可以用作药物。
    BACKGROUND: The traditional use of plants for medicinal purposes, called phytomedicine, has been known to provide relief from pain. In Bangladesh, the Chakma indigenous community has been using Allophylus villosus and Mycetia sinensis to treat various types of pain and inflammation.
    OBJECTIVE: The object of this research is to evaluate the effectiveness of these plants in relieving pain and their antioxidant properties using various approaches such as in vitro, in vivo, and computational techniques. Additionally, the investigation will also analyse the phytochemicals present in these plants.
    METHODS: We conducted in vivo analgesic experiment on Swiss albino mice and in-silico inhibitory activities on COX-2 & 15-LOX-2 enzymes. Assessment of DPPH, Anti Radical Activities (ARA), FRAP, H2O2 Free Radical Scavenging, Reducing the power of both plants performed significant % inhibition with tolerable IC50. Qualitative screening of functional groups of phytochemicals was précised by FTIR and GC-MS analysis demonstrated phytochemical investigations.
    RESULTS: The ethyl acetate (EtOAc) fractioned Mycetia sinensis extract as well as the ethanoic extract and all fractioned extracts of Allophylus villosus have reported a significant percentage (%) of writhing inhibition (p<0.05) with the concentrated doses 250 mg as well as 500 mg among the Swiss albino mice for writhing observation of analgesic effect. In the silico observation, a molecular-docking investigation has performed according to GC-MS generated 43 phyto-compounds of both plants to screen their binding affinity by targeting COX-2 and 15-LOX-2 enzymes. Consequently, in order to assess and ascertain the effectiveness of the sorted phytocompounds, ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) investigation, DFT (Density-functional theory) by QM (Quantum mechanics), and MDS (Molecular dynamics simulation) were carried out. As the outcome, compounds like 5-(2,4-ditert-butylphenoxy)-5-oxopentanoic acid; 2,4-ditert-butylphenyl 5-hydroxypentanoate; 3,3-diphenyl-5-methyl-3H-pyrazole; 2-O-(6-methylheptan-2-yl) 1-O-octyl benzene-1,2-dicarboxylate and dioctan-3-yl benzene-1,2-dicarboxylate derived from the ethnic plant A. villosus and another ethnic plant M. sinensis extracts enchants magnificent analgesic inhibitions and performed more significant drug like activities with the targeted enzymes.
    CONCLUSIONS: Phytocompounds from A. villosus &M. sinensis exhibited potential antagonist activity against human 15-lipoxygenase-2 and cyclooxygenase-2 proteins. The effective ester compounds from these plants performed more potential anti-nociceptive activity which could be used as a drug in future.
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  • 文章类型: Journal Article
    单萜,在各种生物体中发现的化合物,在各个行业有不同的应用。它们的有效性受石油化学成分的影响,反过来又受到植物基因型的影响,环境条件,种植实践,和植物发育阶段。由于其独特的气味和味道,它们被用于各种行业,作为配料,添加剂,杀虫剂,和驱虫剂。这些化合物具有协同作用,产生优于离散效应的组合效应,可能有益于各种健康目的。许多实验研究已经调查了它们与其他成分的相互作用及其抗菌作用,杀虫,抗真菌药,抗癌,抗炎,和抗氧化性能。这篇综述讨论了单萜和其他化合物之间的潜在协同相互作用,他们的来源,和生物学功能。它还强调迫切需要对其生物利用度和毒性进行更多研究,强调这项综合研究在当前科学环境中的重要性和相关性。
    Monoterpenoids, compounds found in various organisms, have diverse applications in various industries. Their effectiveness is influenced by the oil\'s chemical composition, which in turn is influenced by plant genotype, environmental conditions, cultivation practices, and plant development stage. They are used in various industries due to their distinctive odor and taste, serving as ingredients, additives, insecticides, and repellents. These compounds have synergistic properties, resulting in superior combined effects over discrete ones, potentially beneficial for various health purposes. Many experimental studies have investigated their interactions with other ingredients and their antibacterial, insecticidal, antifungal, anticancer, anti-inflammatory, and antioxidant properties. This review discusses potential synergistic interactions between monoterpenoids and other compounds, their sources, and biological functions. It also emphasizes the urgent need for more research on their bioavailability and toxicity, underlining the importance and relevance of this comprehensive study in the current scientific landscape.
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  • 文章类型: Journal Article
    除了植物和动物,真菌王国由几种以各种形式和应用为特征的物种组成。真菌是生物活性天然产品的惊人生产者,应用于医学和农业。尽管这个王国已经在全世界范围内进行了广泛的调查,它在非洲的开发相对不足。为了解决知识差距,鼓励研究兴趣,并提出了从非洲真菌中发现更多生物活性物质的机会,我们认为广泛回顾自1988年以来对非洲真菌的研究工作是适当的.这篇综述总结了整个非洲真菌的多样性和分布,来自研究真菌的次生代谢产物,他们的生物活动和,收集它们的国家。研究的真菌起源于11个非洲国家,主要是内生真菌和高等真菌(大型真菌)。他们的研究导致分离出五百零三(503)种化合物,其中聚酮化合物代表次级代谢产物的主要类别。这些化合物表现出多种生物活性,其中抗菌和抗增殖特性最为突出。
    Besides plants and animals, the fungal kingdom consists of several species characterized by various forms and applications. Fungi are amazing producers of bioactive natural products with applications in medicine and agriculture. Though this kingdom has been extensively investigated worldwide, it remains relatively underexplored in Africa. To address the knowledge gaps, encourage research interest, and suggest opportunities for the discovery of more bioactive substances from African fungi, we considered it appropriate to extensively review the research work carried out on African fungi since 1988. This review summarizes the diversity and distribution of fungi throughout Africa, the secondary metabolites yet reported from studied fungi, their biological activities and, the countries where they were collected. The studied fungi originated from eleven African countries and were mainly endophytic fungi and higher fungi (macrofungi). Their investigation led to the isolation of five hundred and three (503) compounds with polyketides representing the main class of secondary metabolites. The compounds exhibited varied biological activities with antibacterial and antiproliferative properties being the most prominent.
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  • 文章类型: Journal Article
    大豆蛋白是一种有前途的营养来源,由于与多酚(PP)结合而具有改善的功能和生物活性-大豆蛋白和PP之间的缀合物通过共价键和非共价键保持。不同的方法,包括热力学,光谱学,和分子对接模拟,可以证明这些缀合物的结果和机制。大豆蛋白,PP结构,基体属性(温度,pH值),相互作用机制改变ζ电位,二级结构,热稳定性,和蛋白质的表面疏水性,还提高了技术功能特性,如胶凝能力,溶解度,乳化,和发泡性能。大豆蛋白-PP缀合物还显示出增强的体外消化率,抗过敏,抗氧化剂,抗癌,抗炎,和抗菌活性。因此,这些缀合物可以用作可食用薄膜添加剂,抗氧化剂乳化剂,水凝胶,和食品工业中的纳米颗粒。需要进一步的研究来指定大豆蛋白-PP缀合物的结构-功能关联,这可能会影响其功能和在食品工业中的应用。
    Soy protein is a promising nutritional source with improved functionality and bioactivities due to conjugation with polyphenols (PP)-the conjugates between soy protein and PP held by covalent and noncovalent bonds. Different approaches, including thermodynamics, spectroscopy, and molecular docking simulations, can demonstrate the outcomes and mechanism of these conjugates. The soy protein, PP structure, matrix properties (temperature, pH), and interaction mechanism alter the ζ-potential, secondary structure, thermal stability, and surface hydrophobicity of proteins and also improve the techno-functional properties such as gelling ability, solubility, emulsifying, and foaming properties. Soy protein-PP conjugates also reveal enhanced in vitro digestibility, anti-allergic, antioxidant, anticancer, anti-inflammatory, and antimicrobial activities. Thus, these conjugates may be employed as edible film additives, antioxidant emulsifiers, hydrogels, and nanoparticles in the food industry. Future research is needed to specify the structure-function associations of soy protein-PP conjugates that may affect their functionality and application in the food industry.
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  • 文章类型: Journal Article
    植物正在被研究作为新药的潜在来源,这导致了最近加速发现新的生物活性化合物。植物化合物合成和加工的组织培养技术的研究迅速发展,超越所有的期望。这些植物可以买到原料或提取物,一些化学物质是通过将植物在水中捣碎来提取的,酒精,或另一种溶剂。草药的使用可能为减少感染的发作和治疗包括癌症在内的不同疾病开辟新的机会。一种在冬天开花的多年生植物,仙客来,是许多国家使用最广泛的盆栽花卉之一。生物碱,黄酮类化合物,酚类物质,单宁,皂苷,固醇,和糖苷是仙客来的主要活性成分。镇痛,细胞毒性,抗氧化剂,抗菌,和抗炎特性都已被证明是仙客来块茎的各种提取物的潜在作用。然而,在官方医学中使用这种药用植物将需要在药理学领域进行进一步研究。此外,有必要为原始草药创建标准的操作程序。在这方面,这篇综述旨在强调仙客来植物的关键特性,比如它的各个部分,物种,发展阶段,和地理范围;查明其有趣的生物活动,它的抗氧化剂,抗炎,及其抗癌作用;并确定其潜在的医疗用途和主要的未来前景。
    Plants are being researched as potential sources of novel drugs, which has led to a recent acceleration in the discovery of new bioactive compounds. Research on tissue culture technology for the synthesis and processing of plant compounds has skyrocketed, surpassing all expectations. These plants can be bought either raw or as extracts, where some of the chemicals are extracted by mashing the plant in water, alcohol, or another solvent. The use of herbal medicine may open new chances for reducing the onset of infections and treating different diseases including cancer. A perennial plant that blooms in the winter, Cyclamen, is one of the most widely used potted flowers in many nations. Alkaloids, flavonoids, phenols, tannins, saponins, sterols, and glycosides are the main active components of Cyclamen. Analgesic, cytotoxic, antioxidant, antimicrobial, and anti-inflammatory properties have all been demonstrated as potential effects of various extracts of Cyclamen tubers. However, the use of this medicinal plant in official medicine will require further research in the areas of pharmacology. Furthermore, it is necessary to create standard operating procedures for a crude herbal medication. In this regard, this review aims to highlight the key characteristics of the Cyclamen plant, such as its various parts, species, stages of development, and geographic range; pinpoint its intriguing bioactivities, its antioxidant, anti-inflammatory, and its anti-cancerous effects; and ascertain its potential medicinal uses and the main future perspectives.
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  • 文章类型: Journal Article
    考虑到与合成着色剂相关的健康风险,天然色素已经成为一种有希望的替代品。这些可再生的选择不仅提供健康益处,而且还为食品系统提供有价值的技术和感官特性。天然色素的有效应用,然而,需要优化加工条件,探索新的来源,和开发新的配方,以确保稳定性和保持其固有的品质。已经探索了几种天然颜料源以实现消费者所需的宽颜色范围。这篇综述的目的是探讨从副产品中获得和利用天然色素的最新进展,具有增强健康的特性,并通过环保方法提取。此外,这篇综述提供了对提取过程的新见解,应用程序,和不同类型色素的生物活性。
    Given the health risks associated with synthetic colorants, natural pigments have emerged as a promising alternative. These renewable choices not only provide health benefits but also offer valuable technical and sensory properties to food systems. The effective application of natural colorants, however, requires the optimization of processing conditions, exploration of new sources, and development of novel formulations to ensure stability and maintain their inherent qualities. Several natural pigment sources have been explored to achieve the broad color range desired by consumers. The purpose of this review is to explore the current advances in the obtention and utilization of natural pigments derived from by-products, which possess health-enhancing properties and are extracted through environmentally friendly methods. Moreover, this review provides new insights into the extraction processes, applications, and bioactivities of different types of pigments.
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  • 文章类型: Journal Article
    背景:生姜,起源于东南亚的根,对人类健康有几个治疗益处,包括抗氧化活性。目前,有关于从其酚类化合物中提取的膳食补充剂在慢性疾病管理中的降血糖特性的讨论。糖尿病是一种需要持续治疗的慢性复杂疾病,血糖控制在高血糖管理中起决定性作用。
    目的:本系统综述和荟萃分析旨在确定在接受随机临床试验研究的患者中口服补充生姜治疗2型糖尿病(T2DM)的效果。
    方法:跨PubMed,Scopus,和WebofScience数据库,系统研究了截至2022年1月检测生姜在T2DM中作用的随机对照试验.用于评估T2DM治疗对照的参数是空腹血糖(FBS)和糖化血红蛋白(HbA1c)。使用RoB2.0工具进行研究的偏倚风险评估。考虑数据相容性进行Meta分析。
    结果:分析中包括5项研究。含有生姜粉的胶囊每天补充两次。剂量范围从1.2到2g/天,干预期为4~12周。Meta分析结果表明,生姜对FBS和HbA1c无显著影响。然而,个别研究报告了不同的结果,两项研究显示FBS显着降低。这表明,虽然生姜可能具有辅助治疗的潜力,将结果汇总后,其对T2DM患者血糖控制的总体影响无统计学意义.
    结论:目前发表的文章仍然有限,需要进一步研究高方法学质量,以验证补姜对T2DM参数控制的有效性。
    BACKGROUND: Ginger, a root originating in Southeast Asia, has several therapeutic benefits to human health, including antioxidant activity. Currently, there are discussions regarding the hypoglycemic properties of dietary supplements derived from its phenolic compounds in the management of chronic diseases. Diabetes mellitus is a chronic and complex disease that requires continuous treatment, with glycemic control being decisive in the management of hyperglycemia.
    OBJECTIVE: This systematic review and meta-analysis aimed to identify the effects of oral supplementation of ginger in the treatment of type 2 diabetes mellitus (T2DM) in patients undergoing randomized clinical trial studies.
    METHODS: Across the PubMed, Scopus, and Web of Science databases, randomized controlled trials that examined the role of ginger in T2DM until January 2022 were systematically researched. The parameters used to assess T2DM treatment control were Fasting Blood Glucose (FBS) and glycated hemoglobin (HbA1c). Bias risk assessment of the studies was performed using the RoB 2.0 tool. Meta-analysis was performed considering data compatibility.
    RESULTS: Five studies were included in the analysis. Capsules containing Zingiber officinale powder were supplemented twice a day. The dose ranged from 1.2 to 2g/day, and the intervention period ranged from 4 to 12 weeks. Meta-analysis results indicated no significant effect of ginger supplementation on FBS or HbA1c. However, individual studies reported mixed results, with two studies showing a significant reduction in FBS. This suggests that while ginger may have potential as an adjuvant therapy, its overall impact on glycemic control in T2DM is not statistically significant when results are pooled.
    CONCLUSIONS: Currently published articles are still limited, requiring further studies of high methodological quality to verify the effectiveness of ginger supplementation on T2DM parameters control.
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  • 文章类型: Journal Article
    在粮食生产过程中,食品加工,和供应链,大量的食物副产品被产生并作为废物丢弃,这在很大程度上给环境和经济发展带来了不利影响。甘薯(IpomoeabatatasL.)在许多国家被种植和消费。甘薯皮(SPPs)是块茎加工产生的主要副产品。这些残留物含有丰富的营养元素,生物活性化合物,和其他高附加值物质;因此,SPP的再利用对提高其整体附加值具有重要意义。SPPs含有丰富的酚类化合物和类胡萝卜素,这可能对它们的营养特性有很大贡献,包括抗氧化剂,抗菌,抗癌,益生元,抗炎,伤口愈合,和降脂作用。已经证明,SPP可以有望重新恢复到食品工业中,包括:(1)在各种食品中的应用;(2)在食品包装中的应用;(3)在果胶和纤维素纳米晶体的回收中的应用。此外,SPP可以用作有前途的原料,用于通过生物加工生物转化各种增值生物产品。
    During food production, food processing, and supply chain, large amounts of food byproducts are generated and thrown away as waste, which to a great extent brings about adverse consequences on the environment and economic development. The sweet potato (Ipomoea batatas L.) is cultivated and consumed in many countries. Sweet potato peels (SPPs) are the main byproducts generated by the tuber processing. These residues contain abundant nutrition elements, bioactive compounds, and other high value-added substances; therefore, the reutilization of SPP holds significance in improving their overall added value. SPPs contain abundant phenolic compounds and carotenoids, which might contribute significantly to their nutraceutical properties, including antioxidant, antimicrobial, anticancer, prebiotic, anti-inflammatory, wound-healing, and lipid-lowering effects. It has been demonstrated that SPP could be promisingly revalorized into food industry, including: (1) applications in diverse food products; (2) applications in food packaging; and (3) applications in the recovery of pectin and cellulose nanocrystals. Furthermore, SPP could be used as promising feedstocks for the bioconversion of diverse value-added bioproducts through biological processing.
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  • 文章类型: Journal Article
    在目前的调查中,从金合欢树皮中获得的甲醇提取物的总酚和类黄酮。通过LC-HRMS技术定量。使用DPPH和ABTS试剂来测定抗氧化潜能。还测定了抗酪氨酸酶和抗α-淀粉酶的潜力。研究结果表明,在反式紫杉素(23.2g/kg)的甲醇提取物中检测到13种多酚化合物,作为主要组成部分。蓝藻提取物用DPPH试验(IC50=10.14±1.00μg/mL)比用ABTS(IC50=15.27±2.09μg/mL)显示更高的活性。相同的提取物还表现出令人感兴趣的α-淀粉酶抑制作用(IC50值为4.00±0.17μg/mL)。此外,与用作阳性对照的曲酸(IC50=10.22±0.85μg/mL)相比,甲醇树皮提取物具有很强的抗酪氨酸酶能力,IC50为5.12±0.41μg/mL。抗氧化剂,通过计算机分子对接分析增强了蓝藻树皮甲醇提取物的抗酪氨酸酶和抗α-淀粉酶电位,这证实了体外试验的结果。
    In the current investigation, total phenolics and flavonoids of the methanolic extract obtained from the trunk bark of Acacia cyanophylla Lindl. were quantified by LC-HRMS technique. DPPH and ABTS reagents were employed to assay the antioxidant potential. The anti-tyrosinase and anti-α-amylase potentials were also assayed. The findings revealed that thirteen polyphenolic compounds were detected in the methanolic extract with trans-taxifolin (23.2 g/kg), as the major constituent. A. cyanophylla extract displayed a higher activity with DPPH test (IC50=10.14±1.00 μg/mL) than with ABTS (IC50=15.27±2.09 μg/mL). The same extract also exhibited interesting α-amylase inhibitory action (IC50 value of 4.00±0.17 μg/mL). Moreover, methanolic trunk bark extract exerted strong anti-tyrosinase capacity with an IC50 of 5.12±0.41 μg/mL in comparison to kojic acid (IC50=10.22±0.85 μg/mL) used as positive control. The antioxidant, anti-tyrosinase and anti-α-amylase potentials of the methanolic extract of A. cyanophylla trunk bark were reinforced by in silico molecular docking analyses, which confirmed the results of the in vitro tests.
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  • 文章类型: Journal Article
    植物激素细胞分裂素是发育和环境信号的重要介质,主要在细胞分裂和内生相互作用期间,在其他过程中。考虑到对影响药用植物Nepetanuda(Lamiaceae)的生长和生物活性的调节机制的了解有限,本研究旨在探讨细胞分裂素如何影响植物的代谢状态。在体外N.nuda节间外源施用活性细胞分裂素形式刺激了强烈的愈伤组织形成和从头芽再生,导致生物量显著增加。这个过程涉及氧化剂的积累,使用酚类物质作为底物被过氧化物酶清除。在培养基和再生植物之间分配养分的过程中,添加细胞分裂素6-苄基氨基嘌呤(BAP)后形成的愈伤组织充当糖和酚类的汇。InAccording,与未经处理的体外和野生植物相比,细胞分裂素显着提高了极性代谢物的含量及其各自的体外生物活性。BAP介导的主要酚类代谢物的积累,迷迭香酸(RA)和咖啡酸(CA),与参与其生物合成的基因表达水平的变化相对应。相比之下,环烯醚萜类的积累和相应生物合成基因的表达没有显着影响。总之,我们的研究阐明了细胞分裂素在N.nuda体外培养中的作用机制,并证明了其在刺激生物活性化合物产生方面的潜力。这些知识可以作为进一步研究环境对植物生产力影响的基础。
    The phytohormones cytokinins are essential mediators of developmental and environmental signaling, primarily during cell division and endophytic interactions, among other processes. Considering the limited understanding of the regulatory mechanisms that affect the growth and bioactivity of the medicinal plant Nepeta nuda (Lamiaceae), our study aimed to explore how cytokinins influence the plant\'s metabolic status. Exogenous administration of active cytokinin forms on in vitro N. nuda internodes stimulated intensive callus formation and de novo shoot regeneration, leading to a marked increase in biomass. This process involved an accumulation of oxidants, which were scavenged by peroxidases using phenolics as substrates. The callus tissue formed upon the addition of the cytokinin 6-benzylaminopurine (BAP) acted as a sink for sugars and phenolics during the allocation of nutrients between the culture medium and regenerated plants. In accordance, the cytokinin significantly enhanced the content of polar metabolites and their respective in vitro biological activities compared to untreated in vitro and wild-grown plants. The BAP-mediated accumulation of major phenolic metabolites, rosmarinic acid (RA) and caffeic acid (CA), corresponded with variations in the expression levels of genes involved in their biosynthesis. In contrast, the accumulation of iridoids and the expression of corresponding biosynthetic genes were not significantly affected. In conclusion, our study elucidated the mechanism of cytokinin action in N. nuda in vitro culture and demonstrated its potential in stimulating the production of bioactive compounds. This knowledge could serve as a basis for further investigations of the environmental impact on plant productivity.
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