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1.
Molecules ; 28(13)2023 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-37446568

RESUMO

BACKGROUND: Tanacetum parthenium (L.) Sch.Bip. (T. parthenium) is an aromatic perennial plant belonging to the Asteraceae family, also known as feverfew. It is widely distributed in various regions of Europe and other parts of the world. The plant has a rich background in the traditional medicine of many nations and has been used as a remedy for fever, pain, inflammation, asthma, rheumatism, menstrual disorders, etc. Methods: GC-MS analysis was conducted to determine the chemical composition of the isolated essential oil (EO). Using the method proposed by Litchfield and Wilcoxon, the average lethal dose (LD50) of the EO on Wistar rats was determined for two routes of administration: oral (p.o.) and intraperitoneal (i.p.). The subacute toxicity of the EO was also tested by oral administration of a daily dose of 1.0 g/kg body weight (BW) for 28 days. The toxicity of the EO was evaluated by observing and evaluating changes in behavior, body weight, basic hematological and serum biochemical parameters, and histopathological changes of the internal organs. RESULTS: Thirty-seven volatile organic compounds representing 94.58% of the total oil composition were tentatively detected in the obtained T. parthenium EO. The dominant compounds were camphor (45.47%), trans-chrisantenyl acetate (21.65%), camphene (9.48%), and cis-isogeraniol (5.42%). The results showed that the EO was not toxic when administered in acute oral doses. The acute mean lethal dose for intraperitoneal administration was LD50 i.p. = 2.13 g/kg BW. In the subacute study involving administration of an oral dose of EO for 28 days, there were a number of changes in the hematological and serum biochemical parameters of the blood compared with the control group of animals. However, no symptoms of toxicity, changes in the body weight of the rats, death, or pathological changes in the histological indicators of the examined organs-brain, heart, stomach, liver, spleen and kidney-were found. Extrapolating the results obtained from the rat experiments, we can state that the EO is safe for use in doses below 1 g/kgBW for a period not exceeding one month.


Assuntos
Asteraceae , Óleos Voláteis , Ratos , Animais , Óleos Voláteis/toxicidade , Óleos Voláteis/química , Tanacetum parthenium/química , Bulgária , Ratos Wistar , Extratos Vegetais/química , Peso Corporal , Testes de Toxicidade Aguda
2.
Plant Mol Biol ; 111(1-2): 153-166, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36255594

RESUMO

KEY MESSAGE: A highly specialized function for individual LTPs for different products from the same terpenoid biosynthesis pathway is described and the function of an LTP GPI anchor is studied. Sequiterpenes produced in glandular trichomes of the medicinal plant Tanacetum parthenium (feverfew) accumulate in the subcuticular extracellular space. Transport of these compounds over the plasma membrane is presumably by specialized membrane transporters, but it is still not clear how these hydrophobic compounds are subsequently transported over the hydrophilic cell wall. Here we identified eight so-called non-specific Lipid transfer proteins (nsLTPs) genes that are expressed in feverfew trichomes. A putative function of these eight nsLTPs in transport of the lipophilic sesquiterpene lactones produced in feverfew trichomes, was tested in an in-planta transport assay using transient expression in Nicotiana benthamiana. Of eight feverfew nsLTP candidate genes analyzed, two (TpLTP1 and TpLTP2) can specifically improve extracellular accumulation of the sesquiterpene costunolide, while one nsLTP (TpLTP3) shows high specificity towards export of parthenolide. The specificity of the nsLTPs was also tested in an assay that test for the exclusion capacity of the nsLTP for influx of extracellular substrates. In such assay, TpLTP3 was identified as most effective in blocking influx of both costunolide and parthenolide, when these substrates are infiltrated into the apoplast. The TpLTP3 is special in having a GPI-anchor domain, which is essential for the export activity of TpLTP3. However, addition of the TpLTP3 GPI-anchor domain to TpLTP1 resulted in loss of TpLTP1 export activity. These novel export and exclusion assays thus provide new means to test functionality of plant nsLTPs.


Assuntos
Sesquiterpenos , Tanacetum parthenium , Tanacetum parthenium/química , Tanacetum parthenium/genética , Tanacetum parthenium/metabolismo , Sesquiterpenos/metabolismo , Lipídeos
3.
Plant Physiol Biochem ; 194: 674-684, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36563573

RESUMO

Nanomaterials can be used as elicitors for improving the biosynthesis of secondary metabolites in medicinal plants. The present study was conducted to assay the titanium dioxide-nanoparticles (TiO2-NPs) effects on feverfew (Tanacetum parthenium) as an anti-cancer plant. The study showed that TiO2-NPs application increased the amounts of the main compounds and oxygenated monoterpene in essential oils, thereby causing an improvement in the quantity and quality of the essential oils compared to control. The highest effect was related to 1500 ppm TiO2-NPs concentration. Regarding parthenolide, TiO2-NPs had no positive effect on parthenolide content and the highest content was observed in control. Increasing the concentrations over 1500 ppm resulted in a decrease in chlorophyll content, capitule diameter, flower yield, and harvest index compared to other concentrations and control. Additionally, the results indicated that TiO2-NPs foliar spray reduced flower number, biological yield, fresh weight, and dry weights compared with untreated plants. The increase in quality and content of essential oil and lack of increase in parthenolide content, and reproductive and vegetative characteristics showed that TiO2-NPs mainly affected the content and composition of essential oil. Totally, the application of TiO2-NPs in terms of positive effect on the yield and metabolites (without damaging biological effects) can be recommended and followed up to the concentration of 1000 ppm. Overall, the results indicated that improving the synthesis of valuable medicinal metabolites using TiO2-NPs has promising results depending on the type of species, concentration used and target metabolites.


Assuntos
Nanopartículas , Óleos Voláteis , Tanacetum parthenium/química , Tanacetum parthenium/metabolismo , Titânio/farmacologia , Compostos Fitoquímicos/metabolismo , Óleos Voláteis/metabolismo
4.
Chin J Nat Med ; 20(11): 814-829, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36427916

RESUMO

Parthenolide (PTL) is a sesquiterpene lactone derived from medicinal plant feverfew (Tanacetum parthenium). Recent studies have demonstrated that it has multiple pharmacological activities, especially in the treatment of various hematological and solid cancers. The superior anticancer activity of PTL suggests that it has the potential to be a first-line drug. However, due to the limited physical and chemical properties, as well as bioavailability, structural modification strategies are strongly recommended to improve the anticancer activity. This review describes representative PTL derivatives obtained by different modification strategies, which are reported to exert antiproliferative activities superior to the parent compound PTL. Furthermore, we also summarize their basic mechanisms on cancer-related signaling pathways, so as to explain the potential and characteristics of PTL and its derivatives in cancer therapy.


Assuntos
Antineoplásicos , Neoplasias , Sesquiterpenos , Sesquiterpenos/farmacologia , Sesquiterpenos/uso terapêutico , Sesquiterpenos/química , Tanacetum parthenium/química , Tanacetum parthenium/metabolismo , Antineoplásicos/farmacologia , Extratos Vegetais , Neoplasias/tratamento farmacológico
5.
Neurol Sci ; 43(11): 6565-6567, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35792970

RESUMO

Nutraceuticals might be defined as food or dietary supplements that provide medicinal or health benefits. Current preventive treatment of migraine includes nutraceuticals as well as conventional drugs. These non-pharmacological therapies, such as magnesium, coenzyme Q10, feverfew, riboflavin, and phycocyanins, are particularly useful in certain categories of patients (adolescents, pregnant or breastfeeding women, the elderly with complex drug therapy, the patient with contraindication to the usual pharmacological therapies) when a conventional drug therapy cannot be prescribed or may be not well tolerated. The evidence currently available confirms a modest efficacy but a very good safety and tolerability profile.


Assuntos
Transtornos de Enxaqueca , Adolescente , Humanos , Feminino , Idoso , Transtornos de Enxaqueca/tratamento farmacológico , Transtornos de Enxaqueca/prevenção & controle , Suplementos Nutricionais/efeitos adversos , Tanacetum parthenium , Magnésio , Riboflavina/uso terapêutico
6.
Nat Prod Res ; 36(23): 6132-6136, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35356827

RESUMO

Feverfew is an herb used to treat different diseases such as migraine headaches. Due to the economic aspect of its metabolites in the pharmaceutical industry, establishing new approaches to produce the compounds on a large scale is essential. To investigate the effects of stimulators on parthenolide synthesis, feverfew plants were treated with different elicitors, including methyl jasmonate, salicylic acid, NaCl, aluminum oxide, and magnesium aluminate spinel nanoparticles. The expression of genes, E-beta-caryophyllene synthase, Germacrene A synthase, and Costunolide Synthase in the metabolite biosynthesis pathway was examined using qRT-PCR. In addition, parthenolide content, total flavonoids, and polyphenols antioxidant activity were evaluated by HPLC and spectrophotometry. Our results indicated that methyl jasmonate and salicylic acid were more effective on the final concentration of parthenolide, but magnesium aluminate spinel affected the genes' expression, positively. The results show that the elicitors can be used to increase the metabolite in the plant, commercially.


Assuntos
Sesquiterpenos , Tanacetum parthenium , Tanacetum parthenium/genética , Tanacetum parthenium/metabolismo , Vias Biossintéticas/genética , Sesquiterpenos/farmacologia , Extratos Vegetais/farmacologia , Ácido Salicílico/farmacologia
7.
J Environ Sci Health B ; 57(1): 54-61, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34983315

RESUMO

Acetylcholinesterase (AChE) is an enzyme that catalyzes acetylcholine into choline and acetic acid. Conventional pesticides, including organophosphates and carbamates target and inhibit the activity of AChE. To obtain more pesticide precursors that meet the safety requirements, more than 200 compounds were screened. Tirotundin and parthenolide identified as potential neurotoxins to nematodes were isolated from Tithonia diversifolia and Chrysanthemum parthenium, respectively. Their IC50 values were 6.89 ± 0.30 and 5.51 ± 0.23 µg/mL, respectively against the AChE isolated from Caenorhabditis elegans. AChE was inhibited in a dose-dependent manner using the two compounds. And the Lineweaver-Burk and Dixon plots indicated that tirotundin and parthenolide were reversible inhibitors against AChE, both inhibiting AChE in a mixed-type competitive manner and demonstrating these compounds may possess dual binding site AChE inhibitors. LC50 values of tirotundin and parthenolide against C. elegans were 9.16 ± 0.21 and 7.23 ± 0.48 µg/mL, respectively. These results provide a certain theoretical basis for the development and utilization of novel pesticides.


Assuntos
Acetilcolinesterase , Praguicidas , Acetilcolinesterase/metabolismo , Animais , Caenorhabditis elegans , Inibidores da Colinesterase/química , Inibidores da Colinesterase/farmacologia , Lactonas , Praguicidas/toxicidade , Sesquiterpenos , Tanacetum parthenium/metabolismo , Tithonia
8.
Phytother Res ; 35(10): 5680-5693, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34250656

RESUMO

The current study focused on the regulatory effects of parthenolide (PNL), a bioactive component derived from Chrysanthemum parthenium L., against hepatic fibrosis via regulating the crosstalk of toll-like receptor 4 (TLR4) and signal transducer and activator of transcription 3 (STAT3) in activated hepatic stellate cells (HSCs). HSCs or Raw 264.7 macrophages were activated by TGF-ß or LPS for 1 hr, respectively, and then treated with PNL, CLI-095 (TLR4 inhibitor), or Niclosamide (STAT3 inhibitor) for the indicated time to detect the crosstalk of TLR4 and STAT3. PNL significantly decreased the expressions of α-SMA, collagen I, and the ratio of TIMP1 and MMP13 in TGF-ß-activated HSCs. PNL significantly reduced the releases of pro-inflammatory cytokines, including IL-6, IL-1ß, IL-1α, IL-18, and regulated signaling P2X7r/NLRP3 axis activation. PNL obviously induced the apoptosis of activated HSCs by regulating bcl-2 and caspases family. PNL significantly inhibited the expressions of TLR4 and STAT3, including their downstream signaling. PNL could regulate the crosstalk of TLR4 and STAT3, which were verified by their inhibitors in activated HSCs or Raw 264.7 cell macrophages. Thus, PNL could decrease the expressions of fibrosis markers, reduce the releases of inflammatory cytokines, and also induce the apoptosis of activated HSCs. In conclusion, PNL could bi-directionally inhibit TLR4 and STAT3 signaling pathway, suggesting that blocking the crosstalk of TLR4 and STAT3 might be the potential mechanism of PNL against hepatic fibrosis.


Assuntos
Fator de Transcrição STAT3 , Receptor 4 Toll-Like , Inflamação , Cirrose Hepática/tratamento farmacológico , Fator de Transcrição STAT3/metabolismo , Sesquiterpenos , Transdução de Sinais , Tanacetum parthenium , Receptor 4 Toll-Like/metabolismo
10.
Bull Entomol Res ; 111(2): 190-199, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32778187

RESUMO

The Colorado potato beetle, Leptinotarsa decemlineata (Say), is one of the most destructive pest species to have developed resistance to most chemical insecticides. We determined the composition and evaluated the potential of Tanacetum parthenium L. and Tanacetum vulgare L. (Asteraceae family) essential oil (EO) application as an alternative eco-friendly control strategy against L. decemlineata. We assessed the antifeedant activity for L. decemlineata larvae and adults by estimating the damage to potato leaves treated with three concentrations of EOs dissolved in ethanol (0.125, 0.25 and 0.5%). Results showed that T. parthenium EO was more effective against larvae, and T. vulgare was more effective against adults. In an olfactometer assay, the time required to choose an untreated leaf disc did not depend on the Tanacetum species, or life stage examined. However, the concentration of EO exhibited a significant effect on the behaviour of both developmental stages. At higher EO concentrations, both third instar larvae and adults require less time to choose an untreated leaf disc. Additionally, T. parthenium EO provoked more rapid movement away from the treated leaf disc than T. vulgare, especially at the highest concentration. Successful modification of L. decemlineata behaviour by the two Tanacetum oils suggests that they possess the potential for use in potato protection.


Assuntos
Besouros/efeitos dos fármacos , Extratos Vegetais/farmacologia , Tanacetum parthenium/química , Animais , Comportamento/efeitos dos fármacos , Repelentes de Insetos/farmacologia , Larva/efeitos dos fármacos , Óleos Voláteis/farmacologia , Óleos de Plantas/farmacologia , Tanacetum/química
11.
Molecules ; 26(1)2020 Dec 23.
Artigo em Inglês | MEDLINE | ID: mdl-33374525

RESUMO

Tanacetum parthenium (feverfew) has traditionally been employed as a phytotherapeutic remedy in the treatment of migraine. In this study, a commercial T. parthenium water extract was investigated to explore its anti-inflammatory and neuromodulatory effects. Isolated mouse cortexes were exposed to a K+ 60 mM Krebs-Ringer buffer and treated with T. parthenium water extract. The prostaglandin E2 (PGE2) level, brain-derived neurotrophic factor (BDNF), interleukin-10 (IL-10), and IL-1ß gene expression were evaluated in the cortex. The effects on dopamine (DA) release and dopamine transporter (DAT) gene expression were assayed in hypothalamic HypoE22 cells. A bioinformatics analysis was conducted to further investigate the mechanism of action. The extract was effective in reducing cortex PGE2 release and IL-1ß gene expression. In the same experimental system, IL-10 and BDNF gene expressions increased, and in HypoE22 cells, the extract decreased the extracellular dopamine level and increased the DAT gene expression due to the direct interaction of parthenolide with the DAT. Overall, the present findings highlight the efficacy of T. parthenium water extract in controlling the inflammatory pathways that occur during cortical-spreading depression. Additionally, the inhibition of the hypothalamic DA release observed in this study further supports the role of dopaminergic pathways as key targets for novel pharmacological approaches in the management of migraine attacks.


Assuntos
Anti-Inflamatórios/farmacologia , Citocinas/metabolismo , Regulação da Expressão Gênica/efeitos dos fármacos , Hipotálamo/efeitos dos fármacos , Extratos Vegetais/farmacologia , Tanacetum parthenium/química , Água/química , Animais , Simulação por Computador , Citocinas/genética , Perfilação da Expressão Gênica , Hipotálamo/metabolismo , Técnicas In Vitro , Masculino , Camundongos , Camundongos Endogâmicos C57BL
12.
Nutrients ; 12(6)2020 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-32570937

RESUMO

Multifactorial pathogenesis of non-alcoholic steatohepatitis (NASH) disease, a wide-spread liver pathology associated with metabolic alterations triggered by hepatic steatosis, should be hit by multitarget therapeutics. We tested a multicomponent food supplement mixture (AP-NHm), whose components have anti-dislipidemic, antioxidant and anti-inflammatory effects, on in vitro and in vivo models of NASH. In vitro, hepatic cells cultures were treated for 24 h with 0.5 mM oleic acid (OA): in the co-treatment set cells were co-treated with AP-NH mixtures (AP-NHm, 1:3:10 ratio) and in the post-injury set AP-NHm was added for 48 h after OA damage. In vivo, C57BL/6 mice were fed with high-fat diet (HFD) for 12 weeks, inducing NASH at 7th week, and treated with AP-NHm at two dosages (1:3 ratio) in co-treatment or post-injury protocols, while a control group was fed with a standard diet. In in vitro co-treatment protocol, alterations of redox balance, proinflammatory cytokines release and glucose uptake were restored in a dose-dependent manner, at highest dosages also in post-injury regimen. In both regimens, pathologic dyslipidemias were also ameliorated by AP-NHm. In vivo, high-dose-AP-NHm-co-treated-HFD mice dose-dependently gained less body weight, were protected from dyslipidemia, and showed a lower liver weight. Dose-dependently, AP-NHm treatment lowered hepatic LDL, HDL, triglycerides levels and oxidative damage; co-treatment regimen was anti-inflammatory, reducing TNF-α and IL-8 levels. Hepatic lipidic infiltration significantly decreased in co-treated and post-injury-AP-NHm-HFD animals. The multitarget approach with AP-NHm was effective in preventing and reducing NASH-related pathologic features, warranting for the clinical development of this compound.


Assuntos
Ácido Clorogênico/uso terapêutico , Colina/uso terapêutico , Ácidos Docosa-Hexaenoicos/uso terapêutico , Hepatopatia Gordurosa não Alcoólica/tratamento farmacológico , Ácido Oleico/uso terapêutico , Extratos Vegetais/uso terapêutico , alfa-Tocoferol/uso terapêutico , Animais , Anti-Inflamatórios/uso terapêutico , Antioxidantes/uso terapêutico , Células Cultivadas , Café , Suplementos Nutricionais , Modelos Animais de Doenças , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Tanacetum parthenium
13.
Chemosphere ; 259: 127406, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32585459

RESUMO

This study was aimed to evaluate the effects of C60 fullerene concentrations (0, 125, 250, 500 and 1000 mg/L) and salicylic acid (0 and 0.2 mM) on growth and phytochemical accumulation of two feverfew genotypes (Pharmasaat and Jelitto) in a factorial experiment based on completely randomized design with three replications. According to the ANOVA, triple interaction of treatments were significant on morphological and phytochmical traits, however, the main effect of treatments only affected physiological attributes. Application of salicylic acid differentially influenced the effects of various concentrations of C60 fullerene on growth traits of both genotypes. In Pharmasaat, foliar application of salicylic acid increased growth traits of plants exposed to C60 fullerene at all concentrations, however, it improved the growth of Jelitto at higher levels of fullerene. The maximum increase of flower + leaf dry weight was recorded at 1000 mg/L C60 fullerene in combination with salicylic acid compared to control for Jelitto. In Pharmasaat, the parthenolide content significantly increased following increase of C60 fullerene up to 250 mg/L with salicylic acid, but a rapid decrease followed at 500-1000 mg/L. SEM images showed a wider deposition (many spheres with different sizes) of C60 fullerene on leaf tissue of Pharmasaat exposed to high concentration, involving changes in trichome density and tissue rupture. The essential oil content was not significantly increased upon experimental treatments compared to control. Based on hierarchical cluster analysis, C60 fullerene and salicylic acid treatments caused to a co-induction of ion leakage, chlorophyll a, essential oil and parthenoloide in Pharmasaat.


Assuntos
Fulerenos/toxicidade , Ácido Salicílico , Tanacetum parthenium/fisiologia , Clorofila A , Óleos Voláteis , Compostos Fitoquímicos , Folhas de Planta/efeitos dos fármacos , Sesquiterpenos , Tanacetum parthenium/efeitos dos fármacos
14.
Phytother Res ; 34(10): 2429-2430, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32472655

RESUMO

A group of patients with pneumonia caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were reported from China in December 2019. Although several antiviral drugs are widely tested, none of them has been approved as specific antiviral therapy for coronavirus disease 2019 (COVID-19). Accumulating evidence established a hyperinflammatory states or cytokine storm in COVID-19. Among these cytokines, IL-6 plays a key role in cytokine storm and can predict the adverse clinical outcomes and fatality in these patients. Based on the evidence of the significant role of IL-6 in cytokine storm, diabetes mellitus, and cardiovascular diseases as principal comorbidities, it seems that anti-cytokine therapy may be useful in patients with severe COVID-19 to reduce mortality. Recent studies demonstrated that herbal-derived natural products had immunosuppressive and anti-inflammatory properties and exhibited exceptional act on mediators of inflammation. Parthenolide is the principal sesquiterpene lactones and the main biologically active constituent Tanacetum parthenium (commonly known as feverfew) which has could significantly reduce IL-1, IL-2, IL-6, IL-8, and TNF-α production pathways established in several human cell line models in vitro and in vivo studies. Therefore, parthenolide may be one of the herbal candidates for clinical evaluation.


Assuntos
Anti-Inflamatórios/farmacologia , Infecções por Coronavirus/complicações , Citocinas/metabolismo , Inflamação , Extratos Vegetais/farmacologia , Pneumonia Viral/complicações , Sesquiterpenos/farmacologia , Tanacetum parthenium/química , Anti-Inflamatórios/uso terapêutico , Betacoronavirus , COVID-19 , Coronavirus/metabolismo , Infecções por Coronavirus/tratamento farmacológico , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/virologia , Humanos , Inflamação/tratamento farmacológico , Inflamação/etiologia , Inflamação/metabolismo , Pandemias , Fitoterapia , Extratos Vegetais/uso terapêutico , Pneumonia Viral/tratamento farmacológico , Pneumonia Viral/epidemiologia , Pneumonia Viral/virologia , SARS-CoV-2 , Sesquiterpenos/uso terapêutico
15.
Phytother Res ; 34(10): 2493-2517, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32310327

RESUMO

Herbal treatments are often used as a treatment for migraine. Therefore, an evaluation of their safety and efficacy is important. Based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, and Cochrane Collaboration's tool for assessing the risk of bias, a systematic literature review of randomised, controlled human trials assessing the effects of herbal treatments delivered as a single ingredient for the acute or prophylactic treatment of migraine were conducted. Studies were identified through electronic database searches on Medline (Pubmed), Cochrane Library, Scopus, and CINAHL. Nineteen studies were identified examining the effects on migraine of feverfew, butterbur, curcumin, menthol/peppermint oil, coriander, citron, Damask rose, chamomile, and lavender. Overall, findings on the efficacy of feverfew were mixed and there was positive, albeit limited evidence for butterbur. There were positive, preliminary findings on curcumin, citron, and coriander as a prophylactic treatment for migraine, and the use of menthol and chamomile as an acute treatment. However, the risk of bias was high for many studies. The results of this systematic review suggest that several herbal medicines, via their multifactorial physiological influences, present as potential options to enhance the treatment of migraine. However, further high-quality research is essential to examine their efficacy and safety as a treatment for migraine.


Assuntos
Transtornos de Enxaqueca/tratamento farmacológico , Fitoterapia/métodos , Extratos Vegetais/uso terapêutico , Plantas Medicinais/fisiologia , Ensaios Clínicos Controlados Aleatórios como Assunto/estatística & dados numéricos , Terapia por Acupuntura , Camomila/fisiologia , Quimioprevenção/métodos , Citrus/fisiologia , Terapia Combinada , Coriandrum/fisiologia , Humanos , Mentol/química , Mentol/uso terapêutico , Transtornos de Enxaqueca/epidemiologia , Musicoterapia , Plantas Medicinais/química , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Tanacetum parthenium/química , Tanacetum parthenium/fisiologia
16.
Braz. J. Pharm. Sci. (Online) ; 56: e17420, 2020. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1142490

RESUMO

Dengue fever has emerged as a big threat to human health since the last decade owing to high morbidity with considerable mortalities. The proposed study aims at the in silico investigation of the inhibitory action against DENV4-NS1 of phytochemicals from two local medicinal plants of Pakistan. Non-Structural Protein 1 of Dengue Virus 4 (DENV4-NS1) is known to be involved in the replication and maturation of viron in the host cells. A total of 129 phytochemicals (50 from Tanacetum parthenium and 79 from Silybum marianum) were selected for this study. The tertiary structure of DENV4-NS1 was predicted based on homology modelling using Modeller 9.18 and the structural stability was evaluated using molecular dynamics simulations. Absorption, distribution, metabolism, excretion and toxicity (ADMET) along with the drug-likeness was also predicted for these phytochemicals using SwissADME and PreADMET servers. The results of ADMET and drug-likeness predictions exhibited that 54 phytochemicals i.e. 25 from Tanacetum parthenium and 29 from Silybum marianum showed effective druglikeness. These phytochemicals were docked against DENV4-NS1 using AutoDock Vina and 18 most suitable phytochemicals with binding affinities ≤ -6.0 kcal/mol were selected as potential inhibitors for DENV4-NS1. Proposed study also exploits the novel inhibitory action of Jaceidin, Centaureidin, Artecanin, Secotanaparthenolide, Artematin, Schizolaenone B, Isopomiferin, 6, 8-Diprenyleriodictyol, and Anthraxin against dengue virus. It is concluded that the screened 18 phytochemicals have strong inhibition potential against Dengue Virus 4.


Assuntos
Simulação por Computador , Proteínas/classificação , Dengue , Vírus da Dengue , Compostos Fitoquímicos/análise , Plantas Medicinais/metabolismo , Farmacocinética , Tanacetum parthenium/efeitos adversos , Simulação de Dinâmica Molecular
17.
Pain Res Manag ; 2019: 6320163, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31687058

RESUMO

None of the clinical trials on migraine conducted thus far have focused on the possibility to modulate the phenomenon of aura. Furthermore, whether proper management of aura results in a better control of the headache phase has been poorly investigated. In the setting of a single-center, pilot, clinical trial, we aimed at comparing the effects of Aurastop (a combination of tanacetum parthenium (150 mg extracted at 0.8% = 1.2 mg di of active parthenolide), griffonia simplicifoila (20 mg of 5-hydroxy tryptophan), and magnesium (185 mg of magnesium pidolatum)) with those of magnesium alone (2.25 grams/tablet, corresponding to 184 mg of Mg++) in the treatment of acute attacks of migraine with aura. Between June 2017 and June 2018, 50 consecutive patients (27/23 male/female; mean age, 31 [18-57] years) with at least 3 episodes of aura per year were included (t 0). Participants were instructed to keep track of the following 4 episodes of migraine with aura (t 1) and invited to assume (1) a tablet of Aurastop at the beginning of the following 2 episodes of aura and (2) a magnesium tablet alone at the occurrence of the third and fourth aura attacks. Forty-eight patients (96.0%) had >50% reduction in aura duration when treated with Aurastop vs. 7 patients (14.0%) when treated with magnesium alone (p < 0.001); 48 patients (96.0%) had >50% reduction of aura-related disability when receiving Aurastop vs. 5 patients (10.0%) when treated with magnesium alone (p < 0.001); however, patients receiving Aurastop did not need to take pain killers in 35% of aura attacks vs. 3% when assuming magnesium (p < 0.001). These results support the hypothesis that Aurastop might be effective in interfering with the phenomenon of aura and provide evidence that the clinical benefit attributable to this combination of molecules might be greater than that obtained with single compounds of proven effect on the biology of migraine.


Assuntos
Magnésio/uso terapêutico , Enxaqueca com Aura/tratamento farmacológico , Extratos Vegetais/uso terapêutico , Triptofano/uso terapêutico , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Tanacetum parthenium , Adulto Jovem
18.
Org Biomol Chem ; 17(45): 9703-9707, 2019 12 07.
Artigo em Inglês | MEDLINE | ID: mdl-31701984

RESUMO

Parthenolide (PTL) strongly inhibits the detyrosination of microtubules and accelerates neuronal growth. In order to access cyclic ether derivatives of PTL, ring-closing metathesis (RCM) was investigated in comparison to intramolecular sulfone alkylation. Incompatibility of RCM with epoxides was found in this setting. Biological evaluation for tubulin carboxypeptidase inhibition indicated that the epoxide is crucial for parthenolide's activity.


Assuntos
Carboxipeptidases/antagonistas & inibidores , Inibidores Enzimáticos/farmacologia , Éter/farmacologia , Microtúbulos/efeitos dos fármacos , Neurônios/efeitos dos fármacos , Sesquiterpenos/farmacologia , Adulto , Carboxipeptidases/metabolismo , Inibidores Enzimáticos/síntese química , Inibidores Enzimáticos/química , Éter/síntese química , Éter/química , Humanos , Estrutura Molecular , Sesquiterpenos/síntese química , Sesquiterpenos/química , Relação Estrutura-Atividade , Tanacetum parthenium/química
19.
Food Chem Toxicol ; 133: 110783, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31491430

RESUMO

Migraine is one of the most common neurological disorder, which has long been related to brain serotonin (5-HT) depletion and neuro-inflammation. Despite many treatment options are available, the frequent occurrence of unacceptable adverse effects further supports the research toward nutraceuticals and herbal preparations, among which Tanacetum parthenium and Salix alba showed promising anti-inflammatory and neuro-modulatory activities. The impact of extract treatment on astrocyte viability, spontaneous migration and apoptosis was evaluated. Anti-inflammatory/anti-oxidant effects were investigated on isolated rat cortexes exposed to a neurotoxic stimulus. The lactate dehydrogenase (LDH) release, nitrite levels and 5-HT turnover were evaluated, as well. A proteomic analysis was focused on specific neuronal proteins and a fingerprint analysis was carried out on selected phenolic compounds. Both extracts appeared able to exert in vitro anti-oxidant and anti-apoptotic effects. S. alba and T. parthenium extracts reduced LDH release, nitrite levels and 5-HT turnover induced by neurotoxic stimulus. The downregulation of selected proteins suggest a neurotoxicity, which could be ascribed to an elevated content of gallic acid in both S. alba and T. parthenium extracts. Concluding, both extracts exert neuroprotective effects, although the downregulation of key proteins involved in neuron physiology suggest caution in their use as food supplements.


Assuntos
Antioxidantes/farmacologia , Transtornos de Enxaqueca/tratamento farmacológico , Fármacos Neuroprotetores/farmacologia , Extratos Vegetais/farmacologia , Salix/química , Tanacetum parthenium/química , Animais , Antioxidantes/toxicidade , Apoptose/efeitos dos fármacos , Artemia/efeitos dos fármacos , Linhagem Celular , Córtex Cerebral/efeitos dos fármacos , Depressão Alastrante da Atividade Elétrica Cortical/efeitos dos fármacos , Fármacos Neuroprotetores/toxicidade , Extratos Vegetais/toxicidade , Ratos Sprague-Dawley , Cicatrização/efeitos dos fármacos
20.
Molecules ; 24(10)2019 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-31130646

RESUMO

Diabetes complications, including peripheral neuropathy, cataracts, impaired wound healing, vascular damage, arterial wall stiffening and retinopathy diseases, are among the most predominant health problems facing the world's population today. The 22 Peruvian plant extracts were screened for their potential inhibitory activity against rat lens aldose reductase (RLAR) and DPPH radical scavenging. Among them, we have found that Tanacetum parthenium L. (TP) has the RLAR, AGEs and DPPH radical scavenging activities. We used for screening of active components in TP against RLAR and DPPH for the first time by ultrafiltration (UF) and DPPH. Compounds in TP were isolated by Sephadex column chromatography and their structures were established by MS and NMR spectroscopic analyses. Among the isolated compounds, ferulic acid, apigenin, luteolin-7-O-glucoside, luteolin, chrysosplenol, and kaempferol showed potent inhibition with IC50 values of 1.11-3.20 and 6.44-16.23 µM for RLAR and DPPH radical scavenging. Furthermore, these compounds suppressed sorbitol accumulation in rat lenses and ferulic acid, luteolin-7-O-glucoside, and luteolin have AGEs inhibitory activities with IC50 values of 3.43-6.73 µM. In summary, our study provides interesting plants for further study with respect to the treatment and prevention of diabetic complication of Peruvian plant and can provide the scientific base of the traditional uses.


Assuntos
Aldeído Redutase/metabolismo , Plantas Medicinais/química , Tanacetum parthenium/química , Animais , Apigenina/química , Compostos de Bifenilo/química , Cromatografia Líquida de Alta Pressão , Ácidos Cumáricos/química , Flavonas/química , Glucosídeos/química , Quempferóis/química , Luteolina/química , Picratos/química , Ratos , Sorbitol/química
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