Phytochemical characterization

  • 文章类型: Journal Article
    研究了来自四个阿尔及利亚地区的Cnicusbenedictus根的酚类成分。在氢-甲醇(30:70,v/v)和氢-乙醇(30:70,v/v)溶剂中进行提取。通过从C.Benedictus根分离的不同提取物的HPLC-LC/MS,根据酚类化合物的定性和定量组成确定了它们的效率。凤梨根提取物的特点是酚类化合物含量高,反式查尔酮,2,3-二氢黄酮,3-羟基黄酮和肉桂酸构成主要成分,除了14个次要的酸性化合物和类黄酮作为芦丁。水甲醇提取物是Cbenedictus中酚类化合物产量最高的。另一方面,甲醇(30:70,v/v)和乙醇(30:70,v/v)提取物通过体外5-脂氧合酶抑制活性(IC50:6.05±94.16µg/mL)表现出很高的抗炎活性。同样,最后一项技术证实了提取物的抗阿尔茨海默病活性,并考虑了鉴定的主要化合物。与阿莫西林相比,在反式查尔酮和3-羟基黄酮含量高的不同地区,抗菌测试显示出有趣的结果。
    The phenolic composition of Cnicus benedictus roots from four Algerian regions was investigated. Extractions were performed in both hydro-methanolic (30 : 70, v/v) and hydro-ethanolic (30 : 70, v/v) solvents. Their efficiency was determined in terms of the qualitative and quantitative composition in phenolic compounds by HPLC-LC/MS of the different extracts isolated from C. Benedictus roots. Cnicus benedictus roots extract have been characterized by high content of phenolic compounds, where the trans chalcone, 2,3-dihydro flavone, 3-hydroxy flavone and cinnamic acid constitute the major components, in addition to fourteen minor acidic compounds and flavonoids as rutin. The hydro-methanolic extract was the richest in phenolic compounds yield from C benedictus. On the other hand, hydro methanolic (30 : 70, v/v) and hydro ethanolic (30 : 70, v/v) extracts exhibited a high anti-inflammatory activity by in vitro 5-lipoxygenase inhibitory activity (IC50 : 6.05±94.16 μg/mL) as well as by in silico docking according two methods. Likewise, anti-Alzheimer activity of extracts was confirmed by this last technique taking into account the major compounds identified. Antibacterial tests revealed interesting results compared to amoxicillin for the different regions studied with a high content in trans chalcone and 3-hydroxy Flavone.
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  • 文章类型: Journal Article
    背景:经过一段时间的冷漠,合成药物是首选的地方,对植物的生物学方面和生物活性成分负责治疗潜力的兴趣已经被显著地探索。SidacordifoliaL.是一种多年生草本植物,已在印度广泛使用(阿育吠陀,Unani,和Siddha),美国人,以及中国民间医学和草药治疗人类多种疾病的实践。
    目的:这篇综述的目的是阐明本土知识,同时阐明四达科迪叶对各种疾病的药物治疗潜力。它还旨在显示与纳米颗粒轮廓有关的相关信息。
    方法:在当前的综合研究中,基于网络的搜索是通过使用几个数据库进行的,比如谷歌学者,PubMed,ResearchGate,科学直接,还有Scopus,找出1930年至7月在学术期刊上发表的相关研究工作和数据,2023年,使用此处列出的单个或组合关键字。
    结果:50多种化学成分,包括喹唑啉和苯乙胺生物碱,黄酮,黄酮醇,植物甾醇,脂肪酸,等。,据报道,在健康植物的不同部位都有发现。除了传统的主张和药理学方面,还描述了几种已上市的草药配方和已授权的专利。
    结论:一些体外和体内研究验证了S.cordifolia作为抗炎,抗菌,抗真菌药,抗原生动物,驱虫药,抗癌,抗溃疡,心脏保护,低血糖,等。agent.很少有专利也与S.cordifolia有关,并且还需要开展更多的研究工作,才能将其用作抗病毒剂和其他新药发现分子。
    BACKGROUND: After a period of prolonged indifference, where synthetic drugs were preferred, interest in the biological aspects and bioactive ingredients of plants accountable for therapeutic potential has been explored eminently. Sida cordifolia L. is a perennial herb that has been widely utilized in Indian (Ayurveda, Unani, and Siddha), American, and Chinese folk medicine and herbalism practice for curing a wide range of ailments in human beings.
    OBJECTIVE: The goal of this review is to elucidate indigenous knowledge parallelly with the pharmacotherapeutics potential of Sida cordifolia L. against various diseases. It is also intended to display pertinent information related to nanoparticle profiling.
    METHODS: In the current comprehensive study, web-based searches were performed by using several databases, such as Google Scholar, PubMed, ResearchGate, Science Direct, and Scopus, to figure out relevant research work and data published in academic journals from 1930 to July, 2023 using single or combination of keywords listed herewith.
    RESULTS: More than 50 chemical constituents, including quinazoline and phenethylamine alkaloids, flavones, flavonol, phytosterol, fatty acids, etc., were reported to be found in different parts of healthy plants. Apart from traditional claims and pharmacological aspects, several marketed herbal formulations and granted patents were also described.
    CONCLUSIONS: Several in-vitro and in-vivo studies validated the usage of S. cordifolia as antiinflammatory, antibacterial, antifungal, antiprotozoal, anthelmintic, anticancer, antiulcer, cardioprotective, hypoglycemic, etc. agent. Few patents are also related to S. cordifolia, and more research work needs to be carried out for its potential granted to use as an antiviral agent and other new drug discovery molecules.
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  • 文章类型: Journal Article
    乳腺癌是一种以乳腺组织中恶性细胞不受控制的增殖为特征的疾病,并且通过活性氧(ROS)的积累激活的氧化应激与其发展和进展有关。来自药用植物的精油,以其抗氧化和治疗特性而闻名,正在探索作为替代方案。轮曲,也被称为恩卡,是原产于摩洛哥的药用植物,属于伞形科,并在传统医学中使用了几代人。这项研究的重点是来自Oujda省的轮藻精油(PVEO)的植物化学表征,摩洛哥,因为它的治疗特性。精油是通过加氢蒸馏获得的,采用气相色谱-质谱(GC-MS)分析其挥发性成分。结果表明,存在各种芳族和萜烯化合物,香芹酚是最丰富的化合物。PVEO在几个测试中显示出抗氧化性能,包括β-胡萝卜素漂白,2,2-二苯基-1-吡啶酰肼(DPPH)清除和总抗氧化能力(TAC)。它还证明了对MCF-7和MDA-MB-231乳腺癌细胞系的细胞毒性,对MDA-MB-231具有较高的选择性。研究结果表明,轮叶乳蒂精油(PVEO)可能是治疗乳腺癌的一种有前途的天然替代品。
    Breast cancer is a disease characterized by the uncontrolled proliferation of malignant cells in breast tissue, and oxidative stress activated by an accumulation of reactive oxygen species (ROS) is associated with its development and progression. Essential oils from medicinal plants, known for their antioxidant and therapeutic properties, are being explored as alternatives. Ptychotis verticillata, also known as Nûnkha, is a medicinal plant native to Morocco, belonging to the Apiaceae family, and used for generations in traditional medicine. This study focuses on the phytochemical characterization of P. verticillata essential oil (PVEO) from the province of Oujda, Morocco, for its therapeutic properties. The essential oil was obtained by hydro-distillation, and its volatile components were analyzed by gas chromatography-mass spectrometry (GC-MS). The results revealed the presence of various aromatic and terpene compounds, with carvacrol being the most abundant compound. PVEO showed antioxidant properties in several tests, including β-carotene bleaching, 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging and total antioxidant capacity (TAC). It also demonstrated cytotoxicity against MCF-7 and MDA-MB-231 breast cancer cell lines, with higher selectivity for MDA-MB-231. The results reveal that Ptychotis verticillata essential oil (PVEO) could be a promising natural alternative for the treatment of breast cancer.
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  • 文章类型: Journal Article
    几种药用植物因其植物化学成分而引起了研究人员的注意,因为它们具有治疗糖尿病慢性并发症的潜力。在这种情况下,在巴西广泛用于治疗糖尿病的桃金娘科植物,包括Eugeniasonderiana,由于酚类化合物和皂苷在其化学组成中的存在,已显示出有益的效果。因此,本工作旨在使用高效液相色谱与质谱联用(HPLC-MS)对E.sonderiana叶的乙醇提取物进行植物化学表征,以及抗糖尿病活性的体外和体内研究。化学表征揭示了酚类化合物的存在,黄酮类化合物,Neolignans,单宁,和皂苷。此外,在体外试验中,提取物对α-淀粉酶和α-糖苷酶的最低抑制浓度高于阿卡波糖。此外,体内测试表明,糖尿病大鼠的体重略有增加,以及提取物提供的水和饲料消耗的显着减少。关于血清生化参数,提取物在降低葡萄糖水平方面表现出显著的活性,肝酶,和甘油三酯,除了维持HDL胆固醇水平在正常范围内,保护细胞膜免受氧化损伤。因此,在植物治疗药物的生产中,E.sonderiana叶的提取物被认为是有前途的药物成分。
    Several medicinal plants have drawn the attention of researchers by its phytochemical composition regarding their potential for treating chronic complications of diabetes mellitus. In this context, plants of the Myrtaceae family popularly used in Brazil for the treatment of diabetes mellitus, including Eugenia sonderiana, have shown beneficial effects due to the presence of phenolic compounds and saponins in their chemical constitution. Thus, the present work aimed to perform the phytochemical characterization of the hydroethanolic extract of E. sonderiana leaves using high-performance liquid chromatography coupled with mass spectrometry (HPLC-MS), along with in vitro and in vivo studies of antidiabetic activity. The chemical characterization revealed the presence of phenolic compounds, flavonoids, neolignans, tannins, and saponins. In addition, the extract exhibited minimum inhibitory concentrations of alpha-amylase and alpha-glycosidase higher than the acarbose in the in vitro tests. Also, the in vivo tests revealed a slight increase in body mass in diabetic rats, as well as a significant decrease in water and feed consumption provided by the extract. Regarding serum biochemical parameters, the extract showed significant activity in decreasing the levels of glucose, hepatic enzymes, and triglycerides, in addition to maintaining HDL cholesterol levels within normal ranges, protecting the cell membranes against oxidative damage. Thus, the extract of E. sonderiana leaves was considered promising pharmaceutical ingredient in the production of a phytotherapy medication.
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  • 文章类型: Journal Article
    羟基蒽衍生物(HADs)是一组具有广泛生物活性的天然或合成化合物(例如,抗炎,抗菌,和抗关节炎)。此外,因为它们有助于正常的肠道功能,HADs作为药物和营养补充剂广泛用于便秘。然而,在过去的几年里,HAD产品的安全使用一直在考虑之中,因为一些研究报告说HAD并不缺乏毒性(即,基因毒性和致癌活性)。因此,这项研究的第一个目的是通过对一组提取物和植物原料的定性和定量组成的系统分析,揭示含有HAD的植物食品补充剂组成的巨大变异性,其中蒽醌含量高(决明子,Rhamnuspurshiana,RhamnusFrangula,掌叶大黄,和大黄)。迄今为止,HAD毒性的研究是基于体外和体内研究,主要是使用单分子(大黄素,芦荟大黄素,和大黄酸),而不是在整个植物提取物上。定性-定量表征是选择最合适的产物用作我们的体外细胞研究的治疗的起点。因此,这项研究的第二个目标是调查,第一次,在使用人结直肠腺癌细胞(Caco-2)的肠道体外模型中,与含有HAD的整个植物提取物相比,用作单分子的HAD的毒性事件。此外,本研究采用鸟枪蛋白质组学方法对单一HAD或全植物提取物处理后的Caco-2细胞中差异蛋白表达进行了分析,以充分了解潜在的靶标和信号通路.总之,HAD产品的详细植物化学表征和用HAD产品处理的肠细胞的蛋白质组学谱的精确分析的组合提供了研究它们在肠系统中的作用的机会。
    Hydroxyanthracene derivates (HADs) are a group of natural or synthetic compounds with a wide range of biological activities (for instance, anti-inflammatory, antibacterial, and antiarthritic). In addition, because of their properties for helping the normal bowel function, HADs are widely used in constipation as pharmacological drugs and nutritional supplements. Nevertheless, during the past years, a safety usage of HAD products has been under consideration because some studies reported that HADs are not lacking toxicity (i.e., genotoxic and carcinogenic activity). Thus, the first objective of this study is to shed light on the large variability in composition of botanical food supplements containing HAD by a systematic analysis of the qualitative and quantitative composition of a cohort of extracts and raw materials of plants with high levels of anthraquinones commercially available (Cassia angustifolia, Rhamnus purshiana, Rhamnus frangula, Rheum palmatum, and Rheum raponticum). To date, the investigation of HAD toxicity was based on in vitro and in vivo studies conducted mainly on the use of the single molecules (emodin, aloe-emodin, and rhein) rather than on the whole plant extract. The qualitative-quantitative characterization was the starting point to select the most appropriate products to be used as treatment for our in vitro cell studies. Thus, the second objective of this study is the investigation, for the first time, of the toxic events of HAD used as single molecule in comparison with the whole plant extracts containing HAD in an intestinal in vitro model using human colorectal adenocarcinoma cells (Caco-2). In addition, a shotgun proteomics approach was applied to profile the differential protein expression in the Caco-2 cells after a single-HAD or whole-plant extract treatment to fully understand the potential targets and signaling pathways. In conclusion, the combination of a detailed phytochemical characterization of HAD products and a largely accurate analysis of the proteomic profile of intestinal cells treated with HAD products provided the opportunity to investigate their effects in the intestinal system.
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  • 文章类型: Journal Article
    藏红花“番红花”是虹膜科植物。自古以来就知道它的治疗优点;它用于传统医学和烹饪制剂。由于其对人皮肤有益的药理活性,其在化妆品中的用途也是已知的。特别是,藏红花花被是藏红花加工的主要副产品;它们含有几种生物活性化合物,如矿物剂,花青素,单萜,类胡萝卜素,黄酮类化合物,和黄酮醇(山奈酚)。这篇综述旨在描述藏红花花花被的不同性质,包括它们的植物学特征,植物化学成分,生物活动,以及美容和香水的用途。
    Saffron \"Crocus sativus\" is a plant of the Iridaceae family. Its therapeutic virtues have been known since antiquity; it is used in traditional medicine and culinary preparations. It is also known for its use in cosmetics because of its beneficial pharmacological activities for human skin. In particular, saffron tepals are the main by-product of saffron processing; they contain several bioactive compounds such as mineral agents, anthocyanins, monoterpenoids, carotenoids, flavonoids, and flavonols (kaempferol). This review aims to describe the different properties of saffron flower tepals, including their botanical characteristics, phytochemical composition, biological activities, and cosmetology and perfumery uses.
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  • 文章类型: Journal Article
    未经批准:紫藤是西高止山脉的常绿植物,印度,使用传统的部落治疗师,由于其治疗炎症和疼痛缓解程序的优良生物潜力。还消耗树皮提取物以缓解骨骨折部位的炎症变化。印度的传统药用植物必须以其多样化的植物化学成分为特征,它的交互式多个目标站点,揭示生物潜能背后隐藏的分子机制。
    目的:该研究集中在植物材料表征上,计算分析(预测研究),毒理学筛查(体内),以及在LPS诱导的RAW264.7细胞中的红牛甲醇树皮提取物(PRME)的抗炎评价。
    方法:使用PRME的纯化合物分离及其生物相互作用来预测生物活性成分,分子靶标,和PRME抑制炎症介质的分子途径。在脂多糖(LPS)诱导的RAW264.7巨噬细胞模型中评估了PRME提取物的抗炎作用。对30只健康的Sprague-Dawley实验大鼠进行了PRME的毒性评估,随机分为五组进行90天的毒理学评价。使用ELISA方法测量组织的氧化应激水平和器官毒性标志物。进行核磁共振波谱(NMR)以表征生物活性分子。
    结果:结构表征显示存在香草酸,4-O-甲基没食子酸,E-白藜芦醇,gallocatechin,4'-O-甲基gallocechin,和儿茶素。NF-kB的分子对接表现出与香草酸和4-O-甲基没食子酸的显着相互作用,结合能为-351.159Kcal/Mol和-326.5505Kcal/Mol,分别。PRME处理的动物显示总GPx和抗氧化剂水平(SOD和过氧化氢酶)增加。组织病理学检查显示肝脏没有变化,肾和脾组织的细胞模式。PRME抑制促炎参数(IL-1β,IL-6和TNF-α)在LPS诱导的RAW264.7细胞中。TNF-α和NF-kB蛋白表达研究的蛋白水平显着降低,并与基因表达研究表现出良好的相关性。
    结论:本研究确立了PRME作为针对LPS激活的RAW264.7细胞诱导的炎症介质的有效抑制剂的治疗潜力。对SD大鼠的长期毒性评估证实了PRME高达250mg/体重3个月的无毒性质。
    UNASSIGNED: Pterospermum rubiginosum is an evergreen plant in Western Ghats, India, used by traditional tribal healers due to its excellent biological potential for treating inflammation and pain relief procedures. The bark extract is also consumed to relieve the inflammatory changes at the bone fractured site. The traditional medicinal plant in India have to be characterized for its diverse phytochemical moieties, its interactive multiple target sites, and to reveal the hidden molecular mechanism behind the biological potency.
    OBJECTIVE: The study focussed on plant material characterization, computational analysis (prediction study), toxicological screening (In vivo), and anti-inflammatory evaluation of P. rubiginosum methanolic bark extracts (PRME) in LPS-induced RAW 264.7 cells.
    METHODS: The pure compound isolation of PRME and their biological interactions were used to predict the bioactive components, molecular targets, and molecular pathways of PRME in inhibiting inflammatory mediators. The anti-inflammatory effects of PRME extract were evaluated in the lipopolysaccharide (LPS)-induced RAW264.7 macrophage cell model. The toxicity evaluation of PRME was performed in healthy 30 Sprague-Dawley experimental rats, were randomly divided into five groups for toxicological evaluation for 90 days. The tissue levels of oxidative stress and organ toxicity markers were measured using the ELISA method. Nuclear magnetic resonance spectroscopy (NMR) was performed to characterize the bioactive molecules.
    RESULTS: Structural characterization revealed the presence of vanillic acid, 4-O-methyl gallic acid, E-resveratrol, gallocatechin, 4\'-O-methyl gallocatechin, and catechin. Molecular docking of NF-kB exhibited significant interactions with vanillic acid and 4-O-methyl gallic acid with binding energy -351.159 Kcal/Mol and -326.5505 Kcal/Mol, respectively. The PRME-treated animals showed an increase in total GPx and antioxidant levels (SOD and catalase). Histopathological examination revealed no variation in the liver, renal and splenic tissue\'s cellular pattern. PRME inhibited the pro-inflammatory parameters (IL-1β, IL-6, and TNF-α) in LPS-induced RAW 264.7 cells. The protein level of TNF-α and NF-kB protein expression study brought out a notable reduction and exhibited a good correlation with the gene expression study.
    CONCLUSIONS: The current study establishes the therapeutic potential of PRME as an effective inhibitory agent against LPS-activated RAW 264.7 cells induced inflammatory mediators. Long-term toxicity evaluation on SD rats confirmed the non-toxic nature of PRME up to 250mg/body weight for 3 months.
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  • 文章类型: Journal Article
    水花(GeumrivaleL.)是一种常见的玫瑰科植物,在欧洲和北美广泛分布。它富含生物活性天然产物,其中一些有望成为潜在的药物。水的提取物以其三萜代谢产物和相关的抗炎作用而闻名,抗菌和抗氧化活性。然而,G.rivaleL.的多酚谱仍在等待完全表征。因此,其各个成分对抗氧化剂的贡献,提取物的抗菌和神经保护活性仍然未知。由于该工厂可以在工业规模上使用,更好地了解其适当相关的成分可能会提供新的高效药物和功能产品。因此,在这里,我们通过ESI-HR-MS全面表征了G.rivale的次级代谢组,ESI-HR-MSn和NMR光谱,特别强调其天线部分的多酚组成。此外,对抗氧化剂的多边评估,完成了总醇提取物的水性和乙酸乙酯级分以及单个分离的多酚的神经保护和抗菌性能。总共有四种酚酸衍生物(三甲苯甲酰基己糖,咖啡酰基-己糖苷苹果酸酯,鞣花酸和鞣花酸戊糖苷),六种黄酮类化合物(三种槲皮素衍生物,山奈酚及其三种衍生物和两种异鼠李素衍生物)和四种单宁(HHDP-己苷,原花青素二聚体,在该植物中首次发现了花梗素I和没食子酰-双-HHDP-己糖)。获得的总提取物的水性和乙酸乙酯级分以及分离的单个化合物显示出明显的抗氧化活性。此外,对于所研究的级分,证明了对几种菌株的显着抗菌活性(对于乙酸乙酯级分,观察到对大肠杆菌和金黄色葡萄球菌菌株ATCC27853和SG-511的最高活性(MIC15.6μg/mL);对于水性级分,对金黄色葡萄球菌SG-511(MIC31.2μg/mL))。然而,所采用的方法无法发现抗神经变性(神经保护)特性。然而,级分的抗菌活性不能与任何分离的单个主要酚类物质(3-O-甲基鞣花酸除外)相关。因此,水的地上部分代表了具有抗氧化活性的多酚化合物的有希望的来源,并由此获得了人类健康益处,尽管迄今为止分离的单一成分在进行的生物测定中缺乏主要的选择性生物活性成分。
    Water avens (Geum rivale L.) is a common Rosaceae plant widely spread in Europe and North America. It is rich in biologically active natural products, some of which are promising as prospective pharmaceuticals. The extracts of water avens are well known for their triterpenoid metabolites and associated anti-inflammatory, antimicrobial and antioxidant activities. However, the polyphenolic profiles of G. rivale L. are still awaiting complete characterization. Accordingly, the contribution of its individual components to the antioxidant, antibacterial and neuroprotective activity of the extracts is still unknown. As this plant can be available on an industrial scale, a better knowledge of its properly-relevant constituents might give access to new highly-efficient pharmaceutical substances and functional products. Therefore, herein we comprehensively characterize the secondary metabolome of G. rivale by ESI-HR-MS, ESI-HR-MSn and NMR spectroscopy with a special emphasis on the polyphenolic composition of its aerial parts. Furthermore, a multilateral evaluation of the antioxidant, neuroprotective and antibacterial properties of the aqueous and ethyl acetate fractions of the total aqueous alcoholic extract as well as individual isolated polyphenols was accomplished. Altogether four phenolic acid derivatives (trigalloyl hexose, caffeoyl-hexoside malate, ellagic acid and ellagic acid pentoside), six flavonoids (three quercetin derivatives, kaempferol and three its derivatives and two isorhamnetin derivatives) and four tannins (HHDP-hexoside, proantocyanidin dimer, pedunculagin I and galloyl-bis-HHDP-hexose) were identified in this plant for the first time. The obtained aqueous and ethyl acetate fractions of the total extract as well as the isolated individual compounds showed pronounced antioxidant activity. In addition, a pronounced antibacterial activity against several strains was proved for the studied fractions (for ethyl acetate fraction the highest activity against E. coli АТСС 25922 and S. aureus strains ATCC 27853 and SG-511 (MIC 15.6 μg/mL) was observed; for aqueous fraction-against Staphylococcus aureus SG-511 (MIC 31.2 μg/mL)). However, the anti-neurodegenerative (neuroprotective) properties could not be found with the employed methods. However, the antibacterial activity of the fractions could not be associated with any of the isolated individual major phenolics (excepting 3-O-methylellagic acid). Thus, the aerial parts of water avens represent a promising source of polyphenolic compounds with antioxidant activity and therefrom derived human health benefits, although the single constituents isolated so far lack a dominant selectively bioactive constituent in the bioassays performed.
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  • 文章类型: Journal Article
    广泛研究了植物或植物提取物用于预防/抵消几种慢性病症。口服途径是营养和药物给药的最常见途径。目前,目前尚不清楚是否以及如何在胃肠道运输过程中改变植物中发现的酚类化合物(PC)的模式及其生物活性。最近的研究揭示了胸腺的抗氧化和抗脂肪变性特性。这里,我们调查了在整个模拟的体外胃肠道(GI)消化T.spicata地上部分的水性和乙醇提取物的整个顺序步骤中发生的植物化学物质的可能损失。原油,消化,和透析提取物根据其酚谱和生物活性进行了表征。碳水化合物的总含量,蛋白质,PC,黄酮类化合物,和羟基肉桂酸进行了定量。通过HPLC-MS/MS分析监测模拟GI消化后PC谱和生物活性化合物的变化。通过不同的分光光度法测定抗氧化活性,通过使用三种代表性的人类癌细胞系评估抗增殖潜力。我们观察到,模拟GI消化降低了水和乙醇T.spicata提取物中的植物化学物质含量,并改变了PC谱。然而,T.spicata提取物在消化后提高了它们的抗氧化潜力,同时观察到乙醇提取物的抗增殖活性部分降低。因此,我们的结果可以为T.spicata提取物作为有价值的营养保健品的应用提供科学依据。
    Plants or plant extracts are widely investigated for preventing/counteracting several chronic disorders. The oral route is the most common route for nutraceutical and drug administration. Currently, it is still unclear as to whether and how the pattern of phenolic compounds (PCs) found in the plants as well as their bioactivity could be modified during the gastrointestinal transit. Recent studies have revealed antioxidant and anti-steatotic properties of Thymbra spicata. Here, we investigated the possible loss of phytochemicals that occurs throughout the sequential steps of a simulated in vitro gastrointestinal (GI) digestion of aqueous and ethanolic extracts of aerial parts of T. spicata. Crude, digested, and dialyzed extracts were characterized in terms of their phenolic profile and biological activities. Total contents of carbohydrates, proteins, PCs, flavonoids, and hydroxycinnamic acids were quantified. The changes in the PC profile and in bioactive compounds upon the simulated GI digestion were monitored by HPLC-MS/MS analysis. The antioxidant activity was measured by different spectrophotometric assays, and the antiproliferative potential was assessed by using three representative human cancer cell lines. We observed that the simulated GI digestion reduced the phytochemical contents in both aqueous and ethanolic T. spicata extracts and modified the PC profile. However, T. spicata extracts improved their antioxidant potential after digestion, while a partial reduction in the antiproliferative activity was observed for the ethanolic extract. Therefore, our results could provide a scientific basis for the employment of T. spicata extract as valuable nutraceutical.
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  • 文章类型: Journal Article
    对叶片的解剖特征进行了光镜和扫描电镜观察,花粉和粉末。微观研究为A.maritima中掺假的识别和鉴定提供了有用的信息。对A.maritima的营养分析表明,碳水化合物(49.63%)粗蛋白(13.17%)和粗纤维(21.06%)等生命基本大分子的含量充足,而粗脂肪(4.11%)的含量较低。生命必需元素如Mg(9.472±0.011),Ca(4.152±0.135)和Fe(4.112±0.002)含量较高,而重金属在WHO的安全阈值下报告。这些观察结果使A.maritima成为食物的替代品。发现了相当数量的酚类(17.64±0.574)和类黄酮(7.67±0.069),同时报告了定性活性植物化学物质。A.maritima粗粉末的FTIR表征显示,色谱图在3328.61至408.68频率范围内和24个特征峰,根据这些特征峰对具有生物学重要性的不同化合物进行分类。HPLC-UV技术定量鉴定了六种酚类化合物,表没食子儿茶素没食子酸酯,儿茶素水合物,鞣花酸,邻苯三酚和芦丁。通过GC-MS色谱对化合物的鉴定揭示了在甲醇级分中存在46种化合物,然而选择了17种具有生物学重要性的化合物。A.maritima抗氧化剂的体外生物学评价,抗菌,抗糖尿病(12.61±0.113%)和细胞毒性(LC50=20μg/ml)表明,与氯仿和乙酸乙酯部分相比,甲醇部分表现出最高的活性。记录到大多数真菌病原体的MIC值为10或15mg/ml。抗菌活性显示对枯草芽孢杆菌的MIC值为3.75mg/ml,对金黄色葡萄球菌的MIC值为1.87mg/ml,大肠杆菌和铜绿假单胞菌。体内生物学评估显示,在250mg/kg体重下观察到粗提取物的最大抑制作用。进行了强调体内镇痛反应的机制,这表明纳洛酮(吗啡和曲马多拮抗剂)没有显着作用,而格列本脲预处理会微小地改变镇痛作用。这些观察结果清楚地表明了阿片受体的缺乏和ATP敏感性钾通道的参与。
    The light and scanning electron microscopic observations were carried out for anatomical features of leaf, pollens and powder.Microscopic studies provide useful information for identification and authentication of adulteration in A. maritima. Nutritional analysis of A. maritima revealed that life fundamental macromolecules such as carbohydrates (49.63 %) crude proteins (13.17 %) and crude fibers (21.06 %) were present in sufficient quantity while crude fats (4.11 %) reported in low quantity. The life essential elements such as Mg (9.472 ± 0.011), Ca (4.152 ± 0.135) and Fe (4.112 ± 0.002) were found in high concentration while heavy metals reported under the safety threshold of WHO. These observations favored A. maritima an alternative of food.Appreciable quantity of phenolics (17.64 ± 0.574) and flavonoids (7.67 ± 0.069) were found while qualitatively active phytochemicals were reported. The FTIR characterization of A. maritima crude powder revealed chromatogram in 3328.61 to 408.68 frequency range and 24 characteristic peaks on the basis of which different compounds of biological importance were classified. HPLC-UV technique quantifiedand identified six phenolic compounds morin,epigallocatechin gallate, catechin hydrate,ellagic acid, pyrogallol andrutin. Identification of compounds through GC-MS chromatogram revealed the presence of 46 compounds in methanolic fraction however 17 compounds of biological importance were selected. In-vitro biological evaluation of A. maritima for antioxidant, antimicrobial, antidiabetic (12.61 ± 0.113 %) and cytotoxic activities (LC50 = 20 μg/ml) suggested that methanolic fractions exhibited the highest activity as compared to chloroform and ethyl acetate fractions. The MIC values of 10 or 15 mg/ml were recorded for most of the fungal pathogens. Antibacterial activity revealed 3.75 mg/ml of MIC values against B. subtilis and 1.87 mg/ml against S. aureus, E. coli and P. aeruginosa. In-vivo biological evaluation revealed thatmaximum inhibition was observed for crude extract at 250 mg/kg body weight. The mechanism underlined in-vivo analgesic responses was carried out which revealed that naloxone (morphine and tramadol antagonist) showed no prominent effect while Glibenclamide pretreatment minutely modified the analgesic action. These observations clearly indicted the absence of opiod receptors and involvement of ATP sensitive potassium channels.
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