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https://www.readbyqxmd.com/read/28631209/allelopathic-effects-of-exogenous-phenylalanine-a-comparison-of-four-monocot-species
#1
Barbara R Evans, Garima Bali, Art Ragauskas, Riddhi Shah, Hugh O'Neill, Cory Howard, Fayola Lavenhouse, Dawn Ramirez, Kelly Weston, Kelly Ramey, Valerie Cangemi, Brian Kinney, Claudia Partee, Teresa Ware, Brian Davison
Exogenous phenylalanine stunted annual ryegrass but not switchgrass or winter grain rye, with deuterium incorporation up to 3% from phenyalanine-d 8 . Toxicity to duckweed varied with illumination intensity and glucose uptake. Isotopic labeling of biomolecules through biosynthesis from deuterated precursors has successfully been employed for both structural studies and metabolic analysis. Phenylalanine is the precursor of many products synthesized by plants, including the monolignols used for synthesis of lignin...
June 19, 2017: Planta
https://www.readbyqxmd.com/read/28624914/the-effects-of-a-desiccant-agent-in-the-treatment-of-chronic-periodontitis-a-randomized-controlled-clinical-trial
#2
Gaetano Isola, Giovanni Matarese, Ray C Williams, Vincenzo Iorio Siciliano, Angela Alibrandi, Giancarlo Cordasco, Luca Ramaglia
OBJECTIVE: Chemotherapeutic agents have been widely used as adjuncts for the treatment of chronic periodontitis (CP). This study investigated and compared a desiccant agent as an adjunct to scaling and root planing (SRP) versus SRP alone for the treatment of CP. MATERIALS AND METHODS: Thirty-six patients with CP were studied. Using a split-mouth design, the maxillary right and left quadrants were randomly assigned to SRP plus desiccant (Hybenx® EPIEN Medical, Inc...
June 17, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28620796/antioxidant-capacity-of-beetroot-traditional-vs-novel-approaches
#3
Celia Carrillo, Raquel Rey, Marc Hendrickx, María Del Mar Cavia, Sara Alonso-Torre
Red beetroot has been ranked among the 10 most potent antioxidant vegetables, although only extraction-based methods have been used to evaluate its total antioxidant capacity. Therefore, the present study aims at comparing the traditional extraction-based method with two more recent approaches (QUENCHER -QUick, Easy, New, CHEap and Reproducible- and GAR -global antioxidant response method), in order to establish their suitability in the case of beetroot. Our results indicate that the total antioxidant capacity of beetroot would be underestimated when using extraction-based procedures, since both QUENCHER and GAR methods resulted in a higher total antioxidant capacity...
June 15, 2017: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/28605976/anti-mutagenic-potential-of-algal-extracts-on-chromosomal-aberrations-in-allium-cepa-l
#4
Hoda Anwer Mansour, Hala Mahfouz, Nesma Maher
In the present study, sodium azide (SA) toxicity and the anti-mutagenic effects of different algal extracts at 0.1% and 0.2% concentrations were studied on the mitotic index (MI), chromosomal and nuclear aberrations using Allium cepa L. root assay. Moreover, phytochemical screening of photosynthetic pigments, antioxidants compounds, total antioxidant, DPPH scavenging activity, polysaccharides, and phenolic contents were done for two red seaweeds (Laurencia obtusa (Hudson) Lamouroux and Polysiphonia morrowii Harvey) and for one brown seaweed (Dictyopteris delicatula Lamouroux)...
June 2017: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/28597418/influence-of-led-light-spectra-on-in-vitro-somatic-embryogenesis-and-lc-ms-analysis-of-chlorogenic-acid-and-rutin-in-peucedanum-japonicum-thunb-a-medicinal-herb
#5
Chia-Chen Chen, Dinesh Chandra Agrawal, Maw-Rong Lee, Ren-Jye Lee, Chao-Lin Kuo, Chi-Rei Wu, Hsin-Sheng Tsay, Hung-Chi Chang
BACKGROUND: Peucedanum japonicum Thunb, an important medicinal herb is reported to possess pharmacological properties such as anti-obesity, anti-oxidant, anti-inflammatory, anti-bacterial, anti-diabetic and anti-platelet aggregation. The present study aimed to develop an in vitro plant regeneration system of P. japonicum via somatic embryogenesis and to analyse chlorogenic acid and rutin contents in a few commercially available plant products of P. japonicum in Japan and Taiwan markets, and tissue culture plants derived from somatic embryos...
December 2016: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28588599/investigation-of-amino-acids-as-herbicides-for-control-of-orobanche-minor-parasitism-in-red-clover
#6
Mónica Fernández-Aparicio, Alexandre Bernard, Laurent Falchetto, Pascal Marget, Bruno Chauvel, Christian Steinberg, Cindy E Morris, Stephanie Gibot-Leclerc, Angela Boari, Maurizio Vurro, David A Bohan, David C Sands, Xavier Reboud
Certain amino acids induce inhibitory effects in plant growth due to feedback inhibition of metabolic pathways. The inhibition patterns depend on plant species and the plant developmental stage. Those amino acids with inhibitory action on specific weeds could be utilized as herbicides, however, their use for weed control has not been put into practice. Orobanche minor is a weed that parasitizes red clover. O. minor germination is stimulated by clover root exudates. The subsequent seedling is an obligated parasite that must attach quickly to the clover root to withdraw its nutrients...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28579298/regulation-of-gsk-3-activity-by-curcumin-berberine-and-resveratrol-potential-effects-on-multiple-diseases
#7
REVIEW
James A McCubrey, Kvin Lertpiriyapong, Linda S Steelman, Steve L Abrams, Lucio Cocco, Stefano Ratti, Alberto M Martelli, Saverio Candido, Massimo Libra, Giuseppe Montalto, Melchiorre Cervello, Agnieszka Gizak, Dariusz Rakus
Natural products or nutraceuticals promote anti-aging, anti-cancer and other health-enhancing effects. A key target of the effects of natural products may be the regulation of the PI3K/PTEN/Akt/mTORC1/GSK-3 pathway. This review will focus on the effects of curcumin (CUR), berberine (BBR) and resveratrol (RES), on the PI3K/PTEN/Akt/mTORC1/GSK-3 pathway, with a special focus on GSK-3. These natural products may regulate the pathway by multiple mechanisms including: reactive oxygen species (ROS), cytokine receptors, mirco-RNAs (miRs) and many others...
May 26, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/28575484/comprehensive-analysis-of-liberal-and-restrictive-transfusion-strategies-in-pediatric-intensive-care-unit
#8
Basak Akyildiz, Nazan Ulgen Tekerek, Ozge Pamukcu, Adem Dursun, Musa Karakukcu, Nazmi Narin, Mehmet Yay, Ferhan Elmali
Background: We prospectively compared restrictive and liberal transfusion strategies for critically ill children regarding hemodynamic and laboratory parameters. Methods: A total of 180 children requiring packed red blood cells (PRBCs) were randomized into two groups: the liberal transfusion strategy group (transfusion trigger < 10 g/dL, Group 1) and the restrictive transfusion strategy group (transfusion trigger ≤ 7 g/dL, Group 2). Basal variables including venous/arterial hemoglobin, hematocrit and lactate levels; stroke volume; and cardiac output were recorded at the beginning and end of the transfusion...
May 30, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28547377/the-excessive-enrichment-of-trace-elements-in-migratory-and-breeding-red-crowned-cranes-grus-japonensis-in-china
#9
Luo Jinming, Wang Yongjie, Gao Zhongyan, Wang Wenfeng
The excessive enrichment of trace elements, such as Pb and Cd, from food may contribute to the decline of migratory red-crowned cranes (Grus japonensis) in China. To test this prediction, we determined the concentrations of Pb and Cd, as well as further macro and trace elements (Ca, Mg, Cu, Zn) in the target species and their prey (sediment, reed root, mollusk, arthropods, and common fish species) in both the wintering (Yancheng wetland) and breeding sites (Zhalong wetland) of cranes in China. The maximum concentrations of Pb (130 mg kg(-1) dry weight (dw)) and Cd (10...
May 26, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28545921/a-mechanically-activated-ion-channel-is-functionally-expressed-in-the-mrgprb4-positive-sensory-neurons-which-detect-stroking-of-hairy-skin-in-mice
#10
Soichiro Yamaguchi, Ken-Ichi Otsuguro
Mas-related G-protein coupled receptor B4 (MrgprB4) has been reported to be expressed in the dorsal root ganglion (DRG) neurons which detect stroking of hairy skin of mice. However, the mechanisms by which the MrgprB4 positive (+) neurons respond to adequate stimulus remain unsolved as it was also reported that electrophysiological analysis of cultured MrgprB4+ neurons did not reveal responses to mechanical stimuli. Contrary to the observation, however, in this study we show that the MrgprB4+ neurons functionally express a mechanically activated channel using DRG neurons dissociated from genetically-modified mice whose MrgprB4+ neurons express a red fluorescent protein...
May 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28531658/co-plantation-of-aquatic-macrophytes-typha-angustifolia-and-paspalum-scrobiculatum-for-effective-treatment-of-textile-industry-effluent
#11
Vishal V Chandanshive, Niraj R Rane, Asif S Tamboli, Avinash R Gholave, Rahul V Khandare, Sanjay P Govindwar
Field treatment of textile industry effluent was carried out in constructed drenches (91.4m×1.2m×0.6m; 65.8m(3)) planted independently with Typha angustifolia, Paspalum scrobiculatum and their co-plantation (consortium-TP). The in situ treatment of effluent by T. angustifolia, P. scrobiculatum and consortium-TP was found to decrease ADMI color value by 62, 59 and 76%, COD by 65, 63 and 70%, BOD by 68, 63 and 75%, TDS by 45, 39 and 57%, and TSS by 35, 31 and 47%, respectively within 96h. Heavy metals such as arsenic, cadmium, chromium and lead were also removed up to 28-77% after phytoremediation...
May 12, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28528390/colonization-by-nitrogen-fixing-frankia-bacteria-causes-short-term-increases-in-herbivore-susceptibility-in-red-alder-alnus-rubra-seedlings
#12
Daniel J Ballhorn, Jacob D Elias, M A Balkan, Rachel F Fordyce, Peter G Kennedy
Carbon allocation demands from root-nodulating nitrogen-fixing bacteria (NFB) can modulate the host plant's chemical phenotype, with strong bottom-up effects on herbivores. In contrast to well-studied rhizobia, the effects of other important NFB on plant chemistry and herbivory are much less understood. Here, combining field surveys in the Oregon Coast Range, USA with laboratory experiments, we analyzed how N2-fixing Frankia bacteria influenced plant growth, chemistry, and herbivory on Alnus rubra (red alder) seedlings...
June 2017: Oecologia
https://www.readbyqxmd.com/read/28522681/endothelial-nox1-oxidase-assembly-in-human-pulmonary-arterial-hypertension-driver-of-gremlin1-mediated-proliferation
#13
Imad Al Ghouleh, Sanghamitra Sahoo, Daniel N Meijles, Jefferson H Amaral, Daniel S de Jesus, John Sembrat, Mauricio Rojas, Dmitry A Goncharov, Elena A Goncharova, Patrick J Pagano
Background: Pulmonary arterial hypertension (PAH) is a rapidly degenerating and devastating disease of increased pulmonary vessel resistance leading to right heart failure. Palliative modalities remain limited despite recent endeavors to investigate the mechanisms underlying increased pulmonary vascular resistance, i.e. aberrant vascular remodeling and occlusion. However, little is known of the molecular mechanisms responsible for endothelial proliferation, a root cause of PAH-associated vascular remodeling...
May 18, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28513806/increased-activity-of-vascular-adenosine-deaminase-in-atherosclerosis-and-therapeutic-potential-of-its-inhibition
#14
Barbara Kutryb-Zajac, Lukasz Mateuszuk, Paulina Zukowska, Agnieszka Jasztal, Magdalena A Zabielska, Marta Toczek, Patrycja Jablonska, Agnieszka Zakrzewska, Barbara Sitek, Jan Rogowski, Romuald Lango, Ewa M Slominska, Stefan Chlopicki, Ryszard T Smolenski
Aims: Extracellular nucleotides and adenosine that are formed or degraded by membrane-bound ecto-enzymes could affect atherosclerosis by regulating the inflammation and thrombosis. This study aimed to evaluate a relation between ecto-enzymes that convert extracellular adenosine triphosphate to adenine dinucleotide phosphate, adenosine monophosphate, adenosine, and inosine on the surface of the vessel wall with the severity or progression of experimental and clinical atherosclerosis. Furthermore, we tested whether the inhibition of adenosine deaminase will block the development of experimental atherosclerosis...
November 1, 2016: Cardiovascular Research
https://www.readbyqxmd.com/read/28505192/large-herbivores-in-novel-ecosystems-habitat-selection-by-red-deer-cervus-elaphus-in-a-former-brown-coal-mining-area
#15
Anke Müller, Maria Dahm, Peder Klith Bøcher, Meredith Root-Bernstein, Jens-Christian Svenning
After centuries of range contraction, many megafauna species are recolonizing parts of Europe. One example is the red deer (Cervus elaphus), which was able to expand its range and is now found in half the areas it inhabited in the beginning of the 19th century. Herbivores are important ecosystem engineers, influencing e.g. vegetation. Knowledge on their habitat selection and their influence on ecosystems might be crucial for future landscape management, especially for hybrid and novel ecosystems emerging in post-industrial landscapes...
2017: PloS One
https://www.readbyqxmd.com/read/28498507/effect-of-surgical-periodontal-treatment-associated-to-antimicrobial-photodynamic-therapy-on-chronic-periodontitis-a-randomized-controlled-clinical-trial
#16
Sérgio H L Martins, Arthur B Novaes, Mario Taba, Daniela B Palioto, Michel R Messora, Danilo M Reino, Sérgio L S Souza
AIM: This randomized controlled clinical trial evaluated the effects of an adjunctive single application of antimicrobial photodynamic therapy (aPDT) in Surgical Periodontal Treatment (ST) in patients with severe chronic periodontitis (SCP). MATERIAL AND METHODS: In a split-mouth design, 20 patients with SCP were treated with aPDT+ST (Test Group, TG) or ST only (Control Group, CG). aPDT was applied in a single episode, using a diode laser and a phenothiazine photosensitizer...
May 12, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28485773/curcumin-alleviates-lumbar-radiculopathy-by-reducing-neuroinflammation-oxidative-stress-and-nociceptive-factors
#17
L Xiao, M Ding, A Fernandez, P Zhao, L Jin, X Li
Current non-surgical treatments for lumbar radiculopathy [e.g. epidural steroids and Tumour necrosis factor-α (TNF-α) antagonists] are neither effective nor safe. As a non-toxic natural product, curcumin possesses an exceptional anti-inflammatory profile. We hypothesised that curcumin alleviates lumbar radiculopathy by attenuating neuroinflammation, oxidative stress and nociceptive factors. In a dorsal root ganglion (DRG) culture, curcumin effectively inhibited TNF-α-induced neuroinflammation, in a dose-dependent manner, as shown by mRNA and protein expression of IL-6 and COX-2...
May 9, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28479200/dendrochemical-evidence-for-soil-recovery-from-acidic-deposition-in-forests-of-the-northeastern-u-s-with-comparisons-to-the-southeastern-u-s-and-russia
#18
Walter C Shortle, Kevin T Smith, Andrei G Lapenis
A soil resampling approach has detected an early stage of recovery in the cation chemistry of spruce forest soil due to reductions in acid deposition. That approach is limited by the lack of soil data and archived soil samples prior to major increases in acid deposition during the latter half of the 20th century. An alternative approach is the dendrochemical analysis of dated wood to detect temporal changes in base cations back into the 19th century. To infer environmental change from dendrochemical patterns of essential base cations, internal factors that affect cation chemistry such as the maturation of sapwood and the spread of wood infection need to be recognized...
April 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/28465551/forbs-enhance-productivity-of-unfertilised-grass-clover-leys-and-support-low-carbon-bioenergy
#19
Wen-Feng Cong, Jingying Jing, Jim Rasmussen, Karen Søegaard, Jørgen Eriksen
Intensively managed grasslands are dominated by highly productive grass-clover mixtures. Increasing crop diversity by inclusion of competitive forbs may enhance biomass production and sustainable biofuel production. Here we examined if one or all of three forbs (chicory, Cichorium intybus L.; caraway, Carum carvi L.; plantain, Plantago lanceolata L.) included in ryegrass-red clover mixtures enhanced above- and below-ground productivity, and assessed their biofuel potentials, based on a three-year experiment with and without fertilisation as cattle slurry...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28465251/danshen-injection-prevents-heart-failure-by-attenuating-post-infarct-remodeling
#20
Lingyan Wang, Jiahui Yu, Patrick Asare Fordjour, Xiaoxue Xing, Hui Gao, Yanyan Li, Lingyan Li, Yan Zhu, Xiumei Gao, Guanwei Fan
ETHNOPHARMACOLOGICAL RELEVANCE: Danshen Injection (DSI) is a traditional Chinese medicine extracted from Danshen, prepared from the dried root and rhizome of Salvia miltiorrhiza Bunge. Danshen is an ancient antipyretic traditional Chinese medicine which is mostly used to improve blood circulation and dispel blood stasis. Danshen decoction or liquor-fried Danshen (with grain-based liquor) which is cool in nature is traditionally used to 'cool the blood' and reduce the swelling of sores and abscesses...
April 29, 2017: Journal of Ethnopharmacology
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