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https://www.readbyqxmd.com/read/28209917/artesunate-suppresses-the-viability-and-mobility-of-prostate-cancer-cells-through-uca1-the-sponge-of-mir-184
#1
Yan Zhou, Xiuju Wang, Jianjun Zhang, Aina He, Ya Ling Wang, Kun Han, Yang Su, Junyi Yin, Xiaobin Lv, Haiyan Hu
Artesunate (ART) is a sesquiterpene lactone isolated from the leafy portions of the Chinese herb Artemisia annua. Here, we evaluated the effect of ART on the prostate cancer (PCa) cell lines DU145 and LNCaP and explored its potential mechanisms. ART inhibited the viability and mobility of DU145 and LNCaP cells. Mechanistically, we found that UCA1, one of the most important lncRNAs in malignancies of the urinary system, may be a potential mediator contributing to the tumor suppressor function of ART. First, the UCA1 level was reduced significantly after being exposed to ART...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28208095/relation-between-modern-pollen-rain-vegetation-and-climate-in-northern-china-implications-for-quantitative-vegetation-reconstruction-in-a-steppe-environment
#2
Yawen Ge, Yuecong Li, M Jane Bunting, Bing Li, Zetao Li, Junting Wang
Vegetation reconstructions from palaeoecological records depend on adequate understanding of relationships between modern pollen, vegetation and climate. A key parameter for quantitative vegetation reconstructions is the Relative Pollen Productivity (RPP). Differences in both environmental and methodological factors are known to alter the RPP estimated significantly, making it difficult to determine whether the underlying pollen productivity does actually vary, and if so, why. In this paper, we present the results of a replication study for the Bashang steppe region, a typical steppe area in northern China, carried out in 2013 and 2014...
February 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28207974/aamyb1-and-its-orthologue-atmyb61-affect-terpene-metabolism-and-trichome-development-in-artemisia-annua-and-arabidopsis-thaliana
#3
Luis Matías-Hernández, Weimin Jiang, Ke Yang, Kexuan Tang, Peter E Brodelius, Soraya Pelaz
The effective anti-malarial drug artemisinin (AN) isolated from Artemisia annua is relatively expensive due to the low content in the plant as it is only synthesized within the glandular trichomes. Therefore, genetic engineering of A. annua is one of the most promising approaches to improve AN yield. In this work, AaMYB1 transcription factor has been identified and characterized. When AaMYB1 is overexpressed in A. annua, either exclusively in trichomes or in the whole plant, essential AN biosynthetic genes are also overexpressed and consequently AN amount significantly increased...
February 16, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28197158/overexpression-and-suppression-of-artemisia-annua-4-hydroxy-3-methylbut-2-enyl-diphosphate-reductase-1-gene-aahdr1-differentially-regulate-artemisinin-and-terpenoid-biosynthesis
#4
Dongming Ma, Gui Li, Yue Zhu, De-Yu Xie
4-Hydroxy-3-methylbut-2-enyl diphosphate reductase (HDR) catalyzes the last step of the 2-C-methyl-D-erythritol 4- phosphate (MEP) pathway to synthesize isopentenyl pyrophosphate (IPP) and dimethylallyl diphosphate (DMAPP). To date, little is known regarding effects of an increase or a decrease of a HDR expression on terpenoid and other metabolite profiles in plants. In our study, an Artemisia annua HDR cDNA (namely AaHDR1) was cloned from leaves. Expression profiling showed that it was highly expressed in leaves, roots, stems, and flowers with different levels...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28193253/artemisia-spp-essential-oils-against-the-disease-carrying-blowfly-calliphora-vomitoria
#5
Stefano Bedini, Guido Flamini, Francesca Cosci, Roberta Ascrizzi, Maria Cristina Echeverria, Lucia Guidi, Marco Landi, Andrea Lucchi, Barbara Conti
BACKGROUND: Synanthropic flies play a considerable role in the transmission of pathogenic and non-pathogenic microorganisms. In this work, the essential oil (EO) of two aromatic plants, Artemisia annua and Artemisia dracunculus, were evaluated for their abilities to control the blowfly Calliphora vomitoria. Artemisia annua and A. dracunculus EOs were extracted, analysed and tested in laboratory bioassays. Besides, the physiology of EOs toxicity and the EOs antibacterial and antifungal properties were evaluated...
February 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28188411/first-record-and-description-of-juvenile-stages-of-longidorus-artemisiae-rubtsova-chizhov-subbotin-1999-nematoda-longidoridae-in-poland-and-new-data-on-l-juglandicola-li%C3%A5-kov%C3%A3-robbins-brown-1997-based-on-topotype-specimens-from-slovakia
#6
Franciszek Wojciech Kornobis, Marek Renčo, Anna Filipiak
This paper presents the first geographical record of the needle nematode Longidorus artemisiae Rubtsova, Chizhov & Subbotin, 1999 outside Russia. This species was found in Poland near the city of Skierniewice in association with nettle (Urtica dioica L.). Morphometric and morphological data are provided, including the first description of juveniles of this species. Nematodes of the Polish population differ from the type-population in Russia in possessing a thicker body (lower 'a' index) in both sexes; males having a longer body and longer spicules; different sex ratio (1:2 in Polish population vs 1:1 in the type-population) and somewhat less expanded lips...
February 10, 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28182711/pollen-based-reconstruction-of-vegetational-and-climatic-change-over-the-past-30-ka-at-shudu-lake-in-the-hengduan-mountains-of-yunnan-southwestern-china
#7
Yi-Feng Yao, Xiao-Yan Song, Alexandra H Wortley, Yu-Fei Wang, Stephen Blackmore, Cheng-Sen Li
The Hengduan Mountains, with a distinct altitudinal differentiation and strong vertical vegetation zonation, occupy an important position in southwestern China as a global hotspot of biodiversity. Pollen analysis of lake sediments sampled along an altitudinal gradient in this region helps us to understand how this vegetation zonation arose and how it has responded to climate change and human impacts through time. Here we present a ~30-ka pollen record and interpret it in terms of vegetational and climatic change from a 310 cm-long core from Shudu Lake, located in the Hengduan Mountains region...
2017: PloS One
https://www.readbyqxmd.com/read/28178289/eupatilin-exerts-neuroprotective-effects-in-mice-with-transient-focal-cerebral-ischemia-by-reducing-microglial-activation
#8
Arjun Sapkota, Bhakta Prasad Gaire, Kyu Suk Cho, Se Jin Jeon, Oh Wook Kwon, Dae Sik Jang, Sun Yeou Kim, Jong Hoon Ryu, Ji Woong Choi
Microglial activation and its-driven neuroinflammation are characteristic pathogenetic features of neurodiseases, including focal cerebral ischemia. The Artemisia asiatica (Asteraceae) extract and its active component, eupatilin, are well-known to reduce inflammatory responses. But the therapeutic potential of eupatilin against focal cerebral ischemia is not known, along with its anti-inflammatory activities on activated microglia. In this study, we investigated the neuroprotective effect of eupatilin on focal cerebral ischemia through its anti-inflammation, particularly on activated microglia, employing a transient middle cerebral artery occlusion/reperfusion (tMCAO), combined with lipopolysaccharide-stimulated BV2 microglia...
2017: PloS One
https://www.readbyqxmd.com/read/28165389/anti-osteoclastic-activity-of-artemisia-capillaris-thunb-extract-depends-upon-attenuation-of-osteoclast-differentiation-and-bone-resorption-associated-acidification-due-to-chlorogenic-acid-hyperoside-and-scoparone
#9
Sang-Hyun Lee, Jung-Yun Lee, Young-In Kwon, Hae-Dong Jang
The present study attempts to elucidate the anti-osteoporotic activity of Artemisia capillaris Thunb. in the form of anti-osteoclastic effect and responsible bioactive compounds. The contents of chlorogenic acid, caffeic acid, hyperoside, isoquercitrin, isochlorogenic acid A, and scoparone in Artemisia capillaris hydroethanolic extract (ACHE) were 38.53, 0.52, 4.07, 3.03, 13.90, and 6.59 mg/g, respectively. ACHE diminished osteoclast differentiation and bone resorption due to chlorogenic acid, hyperoside, and scoparone...
February 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28161468/capillarisin-augments-anti-oxidative-and-anti-inflammatory-responses-by-activating-nrf2-ho-1-signaling
#10
Jinhee Kim, Juhee Lim, Bok Yun Kang, Kiwon Jung, Hyun Jin Choi
Capillarisin is a naturally isolated chromone, which is one of the major bioactive constituents of Artemisia capillaries. Capillarisin has antioxidant, anti-inflammatory, and anti-tumor potential, but the underlying molecular mechanisms remain largely unclear. In the present study, we demonstrate that the transcription factor nuclear factor E2-related factor-2 (Nrf2) is activated by capillarisin in neuroblastoma SH-SY5Y cells and microglial BV2 cells. Capillarisin leads to Nrf2 phosphorylation, subsequent activation of antioxidant response element (ARE)-mediated transcription, and up-regulation of downstream molecules, such as heme oxygenase-1 (HO-1) and NAD(P)H:quinone oxidoreductase 1...
February 1, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28160864/inulin-type-fructan-and-infusion-of-artemisia-vulgaris-protect-the-liver-against-carbon-tetrachloride-induced-liver-injury
#11
Marília Locatelli Corrêa-Ferreira, Maria Helena Verdan, Francislaine Aparecida Dos Reis Lívero, Larissa Favaretto Galuppo, José Ederaldo Queiroz Telles, Maria Élida Alves Stefanello, Alexandra Acco, Carmen Lúcia de Oliveira Petkowicz
BACKGROUND: Infusions of aerial parts of Artemisia vulgaris L. (Asteraceae) are used in herbal medicine to treat several disorders, including hepatosis. PURPOSE: Evaluation of in vivo hepatoprotective effects of A. vulgaris infusion (VI) and inulin (VPI; i.e., the major polysaccharide of VI). STUDY DESIGN: The hepatoprotective effect of A. vulgaris extracts on carbon tetrachloride (CCl4)-induced hepatotoxicity and the probable mechanism involved in this protection were investigated in mice...
January 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28159660/anticoccidial-activity-of-artemisia-vestita-anthemideae-asteraceae-a-traditional-herb-growing-in-the-western-himalayas-kashmir-india
#12
Shazia Ahad, Syed Tanveer, Irshad Ahmad Nawchoo, Tauseef Ahmad Malik
Coccidiosis, caused by various species of genus Eimeria, is a major parasitic disease in chicken. The increasing resistance of these parasites to currently used anticoccidial drugs has stimulated the search for new methods of control. As part of this effort, a study was designed to see the anticoccidial effect of different solvent extracts of Artemisia vestita-a traditional herb growing in Kashmir Himalayas. The plant extracts were prepared using different solvents. Preliminary toxicity study was first carried out to see the safety of crude plant extracts...
January 31, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28150144/p-hydroxyacetophenone-suppresses-nuclear-factor-%C3%AE%C2%BAb-related-inflammation-in-nociceptive-and-inflammatory-animal-models
#13
Chang Ching-Wen, Chen Yun-Chieh, Lin Yu-Chin, Peng Wen-Huang
p-Hydroxyacetophenone (HAP) is a crucial chemical compound present in plants of the genus Artemisia, which are used in traditional therapies for treating jaundice, hepatitis, and inflammatory diseases. Nevertheless, the bioactivity of HAP remains to be identified in order to prove its importance in the plants of genus Artemisia. This study investigated the antioxidative, antinociceptive, and anti-inflammatory effects of HAP, and probed its possible molecular mechanisms. Our results revealed that HAP (80 mg/kg, intraperitoneally) in vivo reduced the acetic acid-induced writhing response and formalin-induced licking time...
February 1, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28143473/chemical-composition-vasorelaxant-antioxidant-and-antiplatelet-effects-of-essential-oil-of-artemisia-campestris-l-from-oriental-morocco
#14
Ikram Dib, Marie-Laure Fauconnier, Marianne Sindic, Fatima Belmekki, Asmae Assaidi, Mohamed Berrabah, Hassane Mekhfi, Mohammed Aziz, Abdelkhaleq Legssyer, Mohamed Bnouham, Abderrahim Ziyyat
BACKGROUND: Artemisia campestris L. (Asteraceae) is a medicinal herb traditionally used to treat hypertension and many other diseases. Hence, this study is aimed to analyze the essential oil of A. campestris L (AcEO) and to investigate the antiplatelet, antioxidant effects and the mechanisms of its vasorelaxant effect. METHODS: The chemical composition of AcEO was elucidated using GC/MS analysis. Then, the antioxidant effect was tested on DPPH radical scavenging and on the prevention of β-carotene bleaching...
January 31, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28129684/the-effect-of-artemisia-fragrans-willd-essential-oil-on-inducible-nitric-oxide-synthase-gene-expression-and-nitric-oxide-production-in-lipopolysaccharide-stimulated-murine-macrophage-cell-line
#15
Maryam Farghadan, Hosein Ghafoori, Faezeh Vakhshiteh, Seyed Abolhassan Shahzadeh Fazeli, Parvaneh Farzaneh, Parviz Kokhaei
The genus Artemisia is estimated to comprise over 800 species with anti-cancer, anti-fungal, anti-oxidant and anti-inflammatory properties. Artemisia fragrans (A. fragrans), a species that belongs to genus Artemisia, is rich in monoterpenes and sesquiterpenes derivatives. Due to anti-inflammatory properties of monoterpenes and sesquiterpenes, we aimed to investigate the effect of A. fragrans essential oil on mRNA expression of inducible nitric oxide synthase (iNOS) gene and nitric oxide (NO) production in Lipopolysaccharide (LPS) -stimulated RAW264...
December 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28124640/local-allergic-rhinitis-to-pollens-is-underdiagnosed-in-young-patients
#16
Anna Krajewska-Wojtys, Jerzy Jarzab, Radoslaw Gawlik, Andrzej Bozek
BACKGROUND: Local allergic rhinitis (LAR) has been observed in patients without atopy. However, LAR is still underdiagnosed in patients with perennial or seasonal nasal symptoms. OBJECTIVE: The aim of this study was to determine the prevalence of LAR in young patients with a previous diagnosis of nonallergic rhinitis or suspicion of allergy. METHODS: A total of 121 patients, ages 12-18 years old, with confirmed nonallergic rhinitis and typical seasonal nasal symptoms were examined...
November 1, 2016: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28115979/application-of-3d-printing-to-prototype-and-develop-novel-plant-tissue-culture-systems
#17
Mukund R Shukla, Amritpal S Singh, Kevin Piunno, Praveen K Saxena, A Maxwell P Jones
BACKGROUND: Due to the complex process of designing and manufacturing new plant tissue culture vessels through conventional means there have been limited efforts to innovate improved designs. Further, development and availability of low cost, energy efficient LEDs of various spectra has made it a promising light source for plant growth in controlled environments. However, direct replacement of conventional lighting sources with LEDs does not address problems with uniformity, spectral control, or the challenges in conducting statistically valid experiments to assess the effects of light...
2017: Plant Methods
https://www.readbyqxmd.com/read/28111143/adjuvant-active-aqueous-extracts-from-artemisia-rupestris-l-improve-immune-responses-through-tlr4-signaling-pathway
#18
Ailian Zhang, Yu Yang, Yan Wang, Gan Zhao, Xiumei Yang, Danyang Wang, Bin Wang
Activating innate immunity by an adjuvant is required in vaccine development. The study aims to investigate adjuvant effects of aqueous extracts of Artemisia rupestris L. (AEAR) in vivo and in vitro. ICR mice were subcutaneously administered with antigen and AEAR at various doses to evaluate their immune responses of antibodies, dendritic cells (DCs), regulatory T cells (Treg), splenic lymphocyte, and cytokine. The evaluation results showed that AEAR could largely increase titers of antigen-specific antibodies (IgG, IgG1, and IgG2a) and T cell proliferation...
January 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28104013/-correlation-between-the-visiting-rate-of-patients-with-allergic-rhinitis-and-airborne-pollen-concentrations-in-beijing-in-recent-3-years
#19
W N Hu, L Zhu, L F Xie, F Z Zhang, M Y Bai, N Wang, Z W Sun
Objective: To evaluate the daily airborne pollen concentrations and visiting rate of patients with allergic rhinitis (AR) and their correlation during 2012-2014 in Beijing. Methods: Daily airborne pollen concentrations (55 998 numbers in total and 549 numbers in average) and its constitution from April to September each year (2012 to 2014) were compared. The number of patients with AR (44 203 in total) who visited the outpatient department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital between January 2012 and December 2014 was analyzed by month...
January 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28102339/effects-of-increased-nitrogen-and-phosphorus-deposition-on-offspring-performance-of-two-dominant-species-in-a-temperate-steppe-ecosystem
#20
Yang Li, Longyu Hou, Bing Song, Liuyi Yang, Linghao Li
Plants adapt to environment by plastic growth which will be transferred to offspring through transgenerational effect. Performance and response of maternal and offspring plant will affect population dynamics and community composition. However, it is scarcely understood how maternal nutrient environment affect the performance and response of offspring through transgenerational effect. Here we studied the impacts of nitrogen (N) and phosphorus (P) enrichment on maternal and offspring performances and responses of Stipa krylovii and Artemisia frigida...
January 19, 2017: Scientific Reports
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