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Planta Medica

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https://www.readbyqxmd.com/read/28738440/issr-derived-species-specific-scar-marker-for-rapid-and-accurate-authentication-of-ocimum-tenuiflorum-l
#1
Amit Kumar, Vereena Rodrigues, Priyanka Mishra, Kuppusamy Baskaran, Ashutosh K Shukla, Ajit K Shasany, Velusamy Sundaresan
Ocimum tenuiflorum has been widely used in traditional medicine and has high medicinal value. High volume trade of this potential medicinal plant species led to unscrupulous adulteration of both crude drugs as well as formulations. Morphology-based authentication is difficult in cases of incomplete or damaged samples and in dried herbal materials. In such cases, PCR-based molecular methods may aid in accurate identification. The present study aimed at developing species-specific DNA marker(s) for the authentication of O...
July 24, 2017: Planta Medica
https://www.readbyqxmd.com/read/28738439/terpenoids-from-the-oleo-gum-resin-of-boswellia-serrata-and-their-antiplasmodial-effects-in-vitro
#2
Hippolyt L Greve, Marcel Kaiser, Reto Brun, Thomas J Schmidt
In the course of our ongoing search for new natural products as leads against protozoal diseases, the dichloromethane extract of Indian frankincense, the oleo-gum-resin obtained from Boswellia serrata, showed in vitro activity against Plasmodium falciparum. Bioactivity-guided fractionation led to the isolation of eight diterpenes: (1S,3E,7E,11R)-verticilla-3,7,12(18)-triene (1), cembrene A (2), serratol (3), 1S,3E,7R,8R,11E-7,8-epoxy-cembra-3,11-dien-1-ol (4), incensole oxide (5), rel (1S,3R,7E,11S,12R)-1,12-epoxy-4-methylenecembr-7-ene-3, 11-diol (6), isoincensole oxide (7), and isodecaryiol (8)...
July 24, 2017: Planta Medica
https://www.readbyqxmd.com/read/28719925/acetylated-furostene-glycosides-from-solanum-gilo-fruits
#3
Edwige Nana Tchoupang, Christina Reder, Sylvin Benjamin Ateba, Martin Zehl, Hanspeter Kählig, Dieudonné Njamen, Franziska Höller, Sabine Glasl-Tazreiter, Liselotte Krenn
In continuation of our work on a traditional mixture of spices called "Nkui", used in Cameroon for its influence on women's reproductive health, we investigated the chemical composition of Solanum gilo, one component of "Nkui". A methanolic extract was studied in detail. After dereplication of several known compounds, two furo-5-stene-derived saponin glycosides with acetylated sugar moieties were isolated. By extensive 1- and 2D NMR experiments and HR-MS and GC-MS methods, the structures were elucidated as 26-[(3‴,4‴,6‴-tri-O-acetyl)-β-D-glucopyranosyloxy]-22-hydroxyfurost-5-en-3β-yl-O-α-L-rhamnopyranosyl-(1″→2')-β-D-glucopyranoside (A) and 26-[(3‴,4‴,6‴-tri-O-acetyl)-β-D-glucopyranosyloxy]-22-hydroxyfurost-5-en-3β-yl-[O-α-L-rhamnopyranosyl-(1''''→4')-O-α-L-rhamnopyranosyl-(1″→2')]-β-D-glucopyranoside (B), both new natural compounds...
July 18, 2017: Planta Medica
https://www.readbyqxmd.com/read/28719924/erratum-decontamination-of-mikania-glomerata-leaves-by-gamma-irradiation-coumarin-determination-by-hplc-dad-microbiological-control-and-genotoxicological-studies
#4
Marcos Martins Gouvêa, Samara Cristina Ferreira-Machado, Thalita Martins da Silva, Julien Silva Lima, Cláudio Sérgio Corrêa Lau, Luciana Maria Ramires Esper, Samanta Cardozo Mourão, Elizabeth Valverde Macedo, Helio de Carvalho Vital, Edson Ramos Andrade, Annibal Duarte Pereira Netto, Flávia Ferreira de Carvalho Marques, Carlos Augusto de Freitas Peregrino
No abstract text is available yet for this article.
July 18, 2017: Planta Medica
https://www.readbyqxmd.com/read/28701021/apple-pomace-as-potential-source-of-natural-active-compounds
#5
Katharina Waldbauer, Ruxandra McKinnon, Brigitte Kopp
Apple pomace is a waste product of the apple manufacturing industry that has been in the focus of life sciences as it represents a low-cost source of fruit-derived compounds. High fruit consumption is associated with beneficial health effects, and therefore, apple pomace and its constituents raise therapeutic interest. The present work reviews (i) the chemical constituents of apple pomace, (ii) optimized extraction methods of apple pomace compounds, and (iii) biological activities of apple pomace. Current evidence of apple pomace influence on digestion and metabolism, cholesterol and triglyceride homeostasis, diabetes, and sex hormones is summarized...
July 12, 2017: Planta Medica
https://www.readbyqxmd.com/read/28701020/the-identification-of-araliaceae-species-by-its2-genetic-barcoding-and-pollen-morphology
#6
Arkadiy Reunov, Galina Reunova, Dmitry Atopkin, Yulia Reunova, Tamara Muzarok, Evgeny Zakharov, Yury Zhuravlev
The genetic barcode ITS2 (ITS: internal transcribed spacer) and pollen morphology were used for the identification of the pharmacologically valuable wild Araliaceae species Panax ginseng, Oplopanax elatus, Aralia elata, Aralia continentalis, Eleutherococcus senticosus, and Eleutherococcus sessiliflorus inhabiting the natural forests of Primorye, Russia. The ITS2 locus successfully identified all six species, which supports the use of ITS2 as a standard barcode for medicinal plants. However, the ITS2 locus was insufficient for intra-specific discrimination in these species, neither within Primorye nor from other world representatives within GenBank...
July 12, 2017: Planta Medica
https://www.readbyqxmd.com/read/28701019/decontamination-of-mikania-glomerata-leaves-by-gamma-irradiation-coumarin-determination-by-hplc-dad-microbiological-control-and-genotoxicological-studies
#7
Marcos Martins Gouvêa, Samara Cristina Ferreira-Machado, Thalita Martins da Silva, Julien Silva Lima Lima, Cláudio Sérgio Corrêa Lau, Luciana Maria Ramires Esper, Samanta Cardozo Mourão, Elizabeth Valverde Macedo, Helio de Carvalho Vital, Edson Ramos Andrade, Annibal Duarte Pereira Netto, Flávia Ferreira de Carvalho Marques, Carlos Augusto de Freitas Peregrino
Gamma irradiation as a decontaminating physical agent could be an important tool in the production chain of herbal medicines by improving the microbiological quality of raw materials and the safety of final products. This study was undertaken to investigate the genotoxic potential and eventual chemical modifications of a batch of Mikania glomerata raw material decontaminated by different doses of gamma irradiation (2.0, 3.5, and 5.0 kGy), using a cesium-137 source. DNA damage was assessed in vitro by agarose gel electrophoresis in regard to double-chain breaks of plasmid pUC 9...
July 12, 2017: Planta Medica
https://www.readbyqxmd.com/read/28701018/bioactive-triterpenoids-from-the-leaves-and-twigs-of-lithocarpus-litseifolius-and-l-%C3%A2-corneus
#8
Yuan-Bin Cheng, Fan-Jin Liu, Chih-Hsin Wang, Tsong-Long Hwang, Yung-Fong Tsai, Chia-Hung Yen, Hui-Chun Wang, Yen-Hsueh Tseng, Ching-Te Chien, Yi-Ming Arthur Chen, Fang-Rong Chang, Yang-Chang Wu
Phytochemical investigation of the leaves and twigs of Lithocarpus litseifolius and Lithocarpus corneus resulted in the isolation of four new triterpenoids (1-4), three triterpenoids (5-7) isolated from a natural source for the first time, and six known compounds (8-13). In addition, four known triterpenoids (14-17) were isolated from L. corneus. Compound 1 is a 3,4-seco-lupane-type triterpenoid, and compounds 2-4 are lupane-type triterpenoids in different oxidation states. The structures of all isolated compounds were identified by spectroscopic methods, especially NMR and mass spectrometry data...
July 12, 2017: Planta Medica
https://www.readbyqxmd.com/read/28675917/the-impact-of-coffee-on-health
#9
Karen Nieber
Coffee is one of the most popular and widely consumed beverages worldwide due to its stimulating effects on the central nervous system as well as its taste and aroma. Coffee is a complex mixture of more than 800 volatile compounds whereas caffeine and chlorogenic acids are the most common compounds. During the last years, coffee has progressively moved to a less negative position on health due to its better-known pharmacology. Caffeine, e.g., in a cup of coffee, appears to exert most of its effects through an antagonism of the adenosine receptors...
July 4, 2017: Planta Medica
https://www.readbyqxmd.com/read/28666294/epigallocatechin-3-gallate-protects-against-homocysteine-induced-brain-damage-in-rats
#10
Lili Wang, Xuan Tian
High levels of homocysteine are implicated in many neurovascular and neurodegeneration diseases. Epigallocatechin 3-gallate (EGCG), one of green tea polyphenols, has potential anti-oxidative and anti-inflammatory activities. However, it has not been explored whether EGCG has an effect on homocysteine-induced neuro-inflammation and neurodegeneration. In this study, we investigated the effects of EGCG on memory deficit, oxidative stress, neuro-inflammation, and neurodegeneration in hyper-homocysteinemic rats after a 2 wk homocysteine injection by vena caudalis...
June 30, 2017: Planta Medica
https://www.readbyqxmd.com/read/28662530/dna-barcoding-for-industrial-quality-assurance
#11
Tiziana Sgamma, Claire Lockie-Williams, Marco Kreuzer, Sarah Williams, Ulrike Scheyhing, Egon Koch, Adrian Slater, Caroline Howard
DNA barcoding methods originally developed for the identification of plant specimens have been applied to the authentication of herbal drug materials for industrial quality assurance. These methods are intended to be complementary to current morphological and chemical methods of identification. The adoption of these methods by industry will be accelerated by the introduction of DNA-based identification techniques into regulatory standards and monographs. The introduction of DNA methods into the British Pharmacopoeia is described, along with a reference standard for use as a positive control for DNA extraction and polymerase chain reaction (PCR)...
June 29, 2017: Planta Medica
https://www.readbyqxmd.com/read/28662529/bioactivity-guided-investigation-of-the-anti-inflammatory-activity-of-hippophae-rhamnoides-fruits
#12
Dóra Rédei, Norbert Kúsz, Nikoletta Jedlinszki, Gábor Blazsó, István Zupkó, Judit Hohmann
According to modern ethnobotanical records, the fruit of Hippophae rhamnoides is effective in the treatment of different allergic symptoms. In order to obtain pharmacological evidence for this observation, the fruit was investigated for anti-inflammatory activity using in vivo animal models. Aqueous and 70% MeOH extracts were tested in 48/80-induced rat paw edema assay after oral administration, and it was found that the 70% MeOH extract (500 mg/kg) reduced significantly edema volume (0.660 ± 0.082 mL vs...
June 29, 2017: Planta Medica
https://www.readbyqxmd.com/read/28662528/three-new-abietane-type-diterpenoids-from-plectranthus-africanus-and-their-antibacterial-activities
#13
Raïssa T Nzogong, Blaise K Nganou, Alex T Tedonkeu, Maurice D Awouafack, Mathieu Tene, Takuya Ito, Pierre Tane, Hiroyuki Morita
Three new abietane-type diterpenoids, plectranthroyleanones A - C (1 - 3), together with five known compounds (4 - 8) were isolated from the methanol extract of the whole plant of Plectranthus africanus using column chromatography techniques. The structures of the new compounds were elucidated using a combination of 1D and 2D NMR and HRESIMS analyses. Compound 1 exhibited weak activities with minimal inhibitory concentration values of 75 µg/mL against gram-positive bacteria, Bacillus subtilis and Staphylococcus aureus, and 150 µg/mL against two gram-negative bacteria, Pseudomonas aeruginosa and Klebsiella pneumoniae, respectively, while 2 and 3 had moderate antibacterial activity against K...
June 29, 2017: Planta Medica
https://www.readbyqxmd.com/read/28662527/anti-inflammatory-and-anti-hiv-compounds-from-swertia-bimaculata
#14
Miao Dong, Li-Qiu Quan, Wei-Feng Dai, Shi-Li Yan, Chin-Ho Chen, Xuan-Qin Chen, Rong-Tao Li
Three new compounds (1 - 3), including a sesterterpenoid, aspterpenacid C (1), with an unusual 5/3/7/6/5 pentacyclic skeleton, together with seven known ones (4 - 10), were isolated from the ethanol extract of the traditional Chinese medicinal plant Swertia bimaculata. Their structures were elucidated on the basis of the methods of spectroscopic NMR, MS, and computational chemistry. The structure of 1 was further confirmed by single-crystal X-ray diffraction analysis. Compounds 1 - 10 were tested for activities on the inhibition of nitric oxide production and HIV-1 replication in vitro...
June 29, 2017: Planta Medica
https://www.readbyqxmd.com/read/28651291/development-of-a-reference-standard-library-of-chloroplast-genome-sequences-genometrakrcp
#15
Ning Zhang, Padmini Ramachandran, Jun Wen, James A Duke, Helen Metzman, William McLaughlin, Andrea R Ottesen, Ruth E Timme, Sara M Handy
Precise, species-level identification of plants in foods and dietary supplements is difficult. While the use of DNA barcoding regions (short regions of DNA with diagnostic utility) has been effective for many inquiries, it is not always a robust approach for closely related species, especially in highly processed products. The use of fully sequenced chloroplast genomes, as an alternative to short diagnostic barcoding regions, has demonstrated utility for closely related species. The U. S. Food and Drug Administration (FDA) has also developed species-specific DNA-based assays targeting plant species of interest by utilizing chloroplast genome sequences...
June 26, 2017: Planta Medica
https://www.readbyqxmd.com/read/28651290/anti-inflammatory-effects-of-boldine-and-reticuline-isolated-from-litsea-cubeba-through-jak2-stat3-and-nf-%C3%AE%C2%BAb-signaling-pathways
#16
Xinyao Yang, Xiaoli Gao, Yuan Cao, Qiang Guo, Shanshan Li, Zhixiang Zhu, Yunfang Zhao, Pengfei Tu, Xingyun Chai
The anti-inflammatory effects of boldine and reticuline isolated from Litsea cubeba were evaluated by using xylene-induced ear edema and carrageenan-induced paw edema in mice and rats. Our results demonstrated that intragastric administration with boldine and reticuline significantly mitigated ear weight in mice and decreased paw volume in rats. A combination administration of boldine (0.5 mg/kg) + reticuline (0.25 mg/kg) resulted in a potentiated inhibition in these two models. In parallel, boldine or reticuline reduce the infiltration of neutrophil leukocytes in rat paw tissue, respectively, and the combination of the two groups performed a better anti-inflammatory activity as shown in histopathologies...
June 26, 2017: Planta Medica
https://www.readbyqxmd.com/read/28651289/a-validated-method-for-the-quality-control-of-andrographis-paniculata-preparations
#17
Anastasia Karioti, Patricia Timoteo, Maria Camilla Bergonzi, Anna Rita Bilia
Andrographis paniculata is a herbal drug of Asian traditional medicine largely employed for the treatment of several diseases. Recently, it has been introduced in Europe for the prophylactic and symptomatic treatment of common cold and as an ingredient of dietary supplements. The active principles are diterpenes with andrographolide as the main representative. In the present study, an analytical protocol was developed for the determination of the main constituents in the herb and preparations of A. paniculata...
June 26, 2017: Planta Medica
https://www.readbyqxmd.com/read/28651288/development-of-a-high-performance-liquid-chromatographic-method-for-asiaticoside-quantification-in-different-skin-layers-after-topical-application-of-a-centella-asiatica-extract
#18
Priscila Bianca Rodrigues da Rocha, Bruno Dos Santos Souza, Lígia Marquez Andrade, Ricardo Neves Marreto, Eliana Martins Lima, Stephânia Fleury Taveira
The topical application of Centella asiatica extract has been commonly used for many different purposes but especially for cosmetic use in the treatment of gynoid lipodystrophy. Asiaticoside, the most active component in this extract, is responsible for its therapeutic activities. However, little is known to date about asiaticoside skin penetration. Thus, an analytical method for asiaticoside quantification in different skin layers after the topical application of C. asiatica extract was developed and skin permeation studies were performed with the plant extract to apply the analytical method developed...
June 26, 2017: Planta Medica
https://www.readbyqxmd.com/read/28628927/curcumin-promotes-apoptosis-of-activated-hepatic-stellate-cells-by-inhibiting-protein-expression-of-the-myd88-pathway
#19
Ya-Jun He, Kenny Kuchta, Yan-Mei Deng, Silke Cameron, Yu Lin, Xu-You Liu, Guo-Ron Ye, Xia Lv, Yuta Kobayashi, Jian-Chang Shu
Activation and proliferation of hepatic stellate cells (HSC) play an important role in the progress of liver fibrosis. HSC activation occurs in response to inflammatory cytokines, cellular interactions with immune cells, and morphogenetic signals. The literature hints to a role of the adaptor protein MyD88 in fibrosis. Although curcumin has been shown to exert inhibitory effects on the proliferation of HSC in vitro, its influence on the MyD88 pathway in HSC has remained unclear. Here, we investigated whether curcumin accelerates apoptosis of HSC through the MyD88 pathway...
June 19, 2017: Planta Medica
https://www.readbyqxmd.com/read/28614869/a-rosa-canina-urtica-dioica-harpagophytum-procumbens-zeyheri-combination-significantly-reduces-gonarthritis-symptoms-in-a-randomized-placebo-controlled-double-blind-study
#20
Margret Moré, Joerg Gruenwald, Ute Pohl, Ralf Uebelhack
The special formulation MA212 (Rosaxan) is composed of rosehip (Rosa canina L.) puree/juice concentrate, nettle (Urtica dioica L.) leaf extract, and devil's claw (Harpagophytum procumbens DC. ex Meisn. or Harpagophytum zeyheri Decne.) root extract and also supplies vitamin D. It is a food for special medical purposes ([EU] No 609/2013) for the dietary management of pain in patients with gonarthritis.This 12-week randomized, placebo-controlled double-blind parallel-design study aimed to investigate the efficacy and safety of MA212 versus placebo in patients with gonarthritis...
June 14, 2017: Planta Medica
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