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https://www.readbyqxmd.com/read/29720843/modulatory-effect-of-carotenoid-supplement-constituting-lutein-and-zeaxanthin-10-1-on-anti-oxidant-enzymes-and-macular-pigments-level-in-rats
#1
Jayashree Madhavan, Sundaram Chandrasekharan, M K Priya, Ashok Godavarthi
Background: Human eye is constantly exposed to different wavelengths and intensities of light. Oxidative stress results in distinct changes to retinal organs and tissues. Macular pigments (lutein and zeaxanthin), present in the central macular region, provide protection from photodamages by absorption of high energy blue light and also by virtue of their anti-oxidant activity. Ocular phototoxicity is thus prevented by our efficient anti-oxidant system, in both young and old. One of the best commercial sources of pure lutein and zeaxanthin is Marigold flowers...
April 2018: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29665737/increased-synthesis-of-a-new-oleanane-type-saponin-in-hairy-roots-of-marigold-calendula-officinalis-after-treatment-with-jasmonic-acid
#2
Michał Markowski, Marek Długosz, Anna Szakiel, Mathieu Durli, Sophie Poinsignon, Sabine Bouguet-Bonnet, Lionel Vernex-Loset, Gabriel Krier, Max Henry
Native plant of marigold (Calendula officinalis L.) synthesizes oleanolic acid saponins classified as glucosides or glucuronides according to the first residue in sugar chain bound to C-3 hydroxyl group. Hairy root culture, obtained by transformation with Agrobacterium rhizogenes strain 15834, exhibit a potent ability of synthesis of oleanolic acid glycosides. The HPLC profile of saponin fraction obtained from C. officinalis hairy roots treated with plant stress hormone, jasmonic acid, showed the 10-times increase of the content of one particular compound, determined by NMR and MALDI TOF as a new bisdesmoside saponin, 3-O-β-d-glucuronopyranosyl-28-O-β-d-galactopyranosyl-oleanolic acid...
April 18, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29485262/polycrystalline-and-mesoporous-3-d-bi-2-o-3-nanostructured-negatrodes-for-high-energy-and-power-asymmetric-supercapacitors-superfast-room-temperature-direct-wet-chemical-growth
#3
Nanasaheb M Shinde, Qi Xun Xia, Je Moon Yun, Rajaram S Mane, Kwang Ho Kim
Superfast (≤10 min) room-temperature (300 K) chemical synthesis of three-dimensional (3-D) polycrystalline and mesoporous bismuth(III) oxide (Bi2 O3 ) nanostructured negatrode (as an abbreviation of negative electrode) materials, viz., coconut shell, marigold, honey nest cross section and rose with different surface areas, charge transfer resistances, and electrochemical performances essential for energy storage, harvesting, and even catalysis devices, are directly grown onto Ni foam without and with poly(ethylene glycol), ethylene glycol, and ammonium fluoride surfactants, respectively...
April 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29451903/stability-lies-in-flowers-plant-diversification-mediating-shifts-in-arthropod-food-webs
#4
Marcelo Mendes Haro, Luís Cláudio Paterno Silveira, Andrew Wilby
Arthropod community composition in agricultural landscapes is dependent on habitat characteristics, such as plant composition, landscape homogeneity and the presence of key resources, which are usually absent in monocultures. Manipulating agroecosystems through the insertion of in-field floral resources is a useful technique to reduce the deleterious effects of habitat simplification. Food web analysis can clarify how the community reacts to the presence of floral resources which favour ecosystem services such as biological control of pest species...
2018: PloS One
https://www.readbyqxmd.com/read/29371999/antioxidant-and-skin-anti-aging-effects-of-marigold-methanol-extract
#5
Chul Ho Kang, Sung Ja Rhie, Young Chul Kim
The objective of this study was to evaluate the antioxidant and anti-aging effects of marigold methanol extract (MGME) in human dermal fibroblasts. Total polyphenolic and flavonoid contents in MGME were 74.8 mg TAE (tannic acid equivalent)/g and 85.6 mg RE (rutin equivalent)/g, respectively. MGME (500 μg/mL) increased 1,1-diphenyl-2-picryl hydrazyl (DPPH) and 2,2'-azino-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) radical-scavenging, and superoxide dismutase (SOD)-like antioxidant activities by 36.5, 54.7, and 14...
January 2018: Toxicological Research
https://www.readbyqxmd.com/read/29349734/alternative-soilless-media-using-olive-mill-and-paper-waste-for-growing-ornamental-plants
#6
Antonios Chrysargyris, Omiros Antoniou, Andreas Tzionis, Munoo Prasad, Nikolaos Tzortzakis
Peat-based growing media are not ecologically sustainable and peat extraction threatens sensitive peatland ecosystem. In this study, olive-stone waste (OSW) and paper waste (PW) were used in different ratios-as growing media-for ornamental crop production, as peat (P) substitutes. Marigold (Calendula officinalis L.), petunia (Petunia x hybrita L.) and matthiola (Matthiola incana L.) plants were grown in (1) P (100%), (2) P:OSW (90%:10%), (3) P:OSW (70%:30%), and (4) P:OSW:PW (60%:20%:20%). The physicochemical properties of these substrates and the effects on plant growth were determined...
January 18, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29197798/individual-and-combined-effects-of-fluoranthene-phenanthrene-mannitol-and-sulfuric-acid-on-marigold-calendula-officinalis
#7
Wahdatullah Khpalwak, Sherif M Abdel-Dayem, Hiroshi Sakugawa
A study was conducted to characterize marigold stress response to polycyclic aromatic hydrocarbons (PAHs) (oxidative stress inducers) with and without sulfuric acid (S.Acid; pH 3) (acid-stress inducer), and to evaluate reactive oxygen species (ROS) scavenging activity of mannitol (Mann). Marigold (Calendula officinalis) seedlings were grown in a greenhouse and fumigated with fluoranthene (FLU), phenanthrene (PHE), Mann, and S.Acid individually and in various combinations for 40 days. Various physiological and biochemical parameters among others were analyzed using standard methods...
February 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29117005/coordination-of-gaze-behavior-and-foot-placement-during-walking-in-persons-with-glaucoma
#8
Andreas B Miller, Kim Lajoie, Robert A Strath, David R Neima, Daniel S Marigold
PURPOSE: Vision normally provides environmental information necessary to direct the foot to safe locations during walking. Peripheral visual field loss limits what a person can see, and may alter how a person visually samples the environment. Here we tested the hypothesis that the spatial-temporal coupling between gaze and stepping in a precision-based walking task is altered in persons with glaucoma, particularly under dual task situations, and results in reduced foot-placement accuracy...
January 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29053442/posterior-parietal-cortex-estimates-the-relationship-between-object-and-body-location-during-locomotion
#9
Daniel S Marigold, Trevor Drew
We test the hypothesis that the posterior parietal cortex (PPC) contributes to the control of visually guided locomotor gait modifications by constructing an estimation of object location relative to body state, and in particular the changing gap between them. To test this hypothesis, we recorded neuronal activity from areas 5b and 7 of the PPC of cats walking on a treadmill and stepping over a moving obstacle whose speed of advance was varied (slowed or accelerated with respect to the speed of the cat). We found distinct populations of neurons in the PPC, primarily in area 5b, that signaled distance- or time-to-contact with the obstacle, regardless of which limb was the first to step over the obstacle...
October 20, 2017: ELife
https://www.readbyqxmd.com/read/29053351/cadmium-accumulation-and-main-rhizosphere-characteristics-of-seven-french-marigold-tagetes-patula-l-cultivars
#10
Ruilian Sun, Qianqian Sun, Renqing Wang, Lidong Cao
The study was conducted to determine Cd accumulation and Cd fraction in the rhizosphere soil of seven Tagetes patula cultivars (Little Hero Orange, Durango Yellow, Janie Yellow Bright, Lucifer Yellow, Hero Flame, Hongyun Red, Konghuang Yellow). T. patula cultivars showed strong tolerance and accumulation to Cd. The highest Cd concentration (273.77 mg kg(-1)) in shoots was observed in Little Hero Orange when treated with Cd100. For most cultivars, Cd treatments significantly affected rhizosphere pH values, but had a slight effect on dissolved organic carbon (DOC)...
October 20, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/29034145/swift-tuning-from-spherical-molybdenum-microspheres-to-hierarchical-molybdenum-disulfide-nanostructures-by-switching-from-solvothermal-to-hydrothermal-synthesis-route
#11
Nilam Qureshi, Sudhir Arbuj, Manish Shinde, Sunit Rane, Milind Kulkarni, Dinesh Amalnerkar, Haiwon Lee
Herein, we report the synthesis of metallic molybdenum microspheres and hierarchical MoS2 nanostructures by facile template-free solvothermal and hydrothermal approach, respectively. The morphological transition of the Mo microspheres to hierarchical MoS2 nanoflower architectures is observed to be accomplished with change in solvent from ethylenediamine to water. The resultant marigold flower-like MoS2 nanostructures are few layers thick with poor crystallinity while spherical ball-like molybdenum microspheres exhibit better crystalline nature...
2017: Nano Convergence
https://www.readbyqxmd.com/read/29023010/bio-controlling-effect-of-leaf-extract-of-tagetes-patula-l-marigold-on-growth-parameters-and-diseases-of-tomato
#12
Gayatri Nahak, Rajani Kanta Sahu
BACKGROUND: The genus Tagetes (Asteraceae) is native to Americas but some of its members (in particular T. erecta and T. patula) commonly known as marigolds were naturalized in the old world (India, North Africa and Europe) as early as in 16th century. The flowers of French marigold (Tagetes patula L.) are widely used in folk medicine, in particular for treating inflammation-related disorders. MATERIALS AND METHODS: This study investigated the potential use of marigold (Tagetes patula L...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/28965268/process-analysis-and-modeling-of-a-single-step-lutein-extraction-method-for-wet-microalgae
#13
Mengyue Gong, Yuruihan Wang, Amarjeet Bassi
Lutein is a commercial carotenoid with potential health benefits. Microalgae are alternative sources for the lutein production in comparison to conventional approaches using marigold flowers. In this study, a process analysis of a single-step simultaneous extraction, saponification, and primary purification process for free lutein production from wet microalgae biomass was carried out. The feasibility of binary solvent mixtures for wet biomass extraction was successfully demonstrated, and the extraction kinetics of lutein from chloroplast in microalgae were first evaluated...
September 30, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28866331/microcystin-lr-exposure-induces-oxidative-damage-in-caenorhabditis-elegans-protective-effect-of-lutein-extracted-from-marigold-flowers
#14
Paula Rossini Augusti, Allana Von Sulzback Brasil, Caroline Souto, Gabriela Göethel, Alessandro de Oliveira Rios, Tatiana Emanuelli, Marilise Escobar Bürger, Solange Cristina Garcia
Microcystin-LR (MIC-LR) is a hepatotoxin, with toxicity mechanisms linked to oxidative stress. Besides, neurotoxic effects of MIC-LR have recently been described. Herein, we evaluated the effects of environmentally important concentrations of MIC-LR (1, 10, 100, 250, and 500 μg/L) on oxidative stress markers and the survival rate of the nematode Caenorhabditis elegans (C. elegans). In addition, a possible protective effect of the carotenoid lutein (LUT) extracted from marigold flowers against MIC-LR toxicity was investigated...
November 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28767066/isorhamnetin-and-quercetin-derivatives-as-anti-acetylcholinesterase-principles-of-marigold-calendula-officinalis-flowers-and-preparations
#15
Daniil N Olennikov, Nina I Kashchenko, Nadezhda K Chirikova, Anzurat Akobirshoeva, Ifrat N Zilfikarov, Cecile Vennos
Marigold (Calendula officinalis L.) is one of the most common and widespread plants used medicinally all over the world. The present study aimed to evaluate the anti-acetylcholinesterase activity of marigold flowers, detect the compounds responsible and perform chemical analysis of marigold commercial products. Analysis of 23 varieties of C. officinalis flowers introduced into Siberia allowed us to select the Greenheart Orange variety due to the superior content of flavonoids (46.87 mg/g) and the highest inhibitory activity against acetylcholinesterase (IC50 63...
August 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28678585/differential-mobilization-and-metal-uptake-versus-leaching-in-multimetal-soil-columns-using-edta-and-three-metal-bioaccumulators
#16
Firdaus-E- Bareen, Sarwat Saeed, Humera Afrasiab
Tannery waste is a major environmental concern that needs proper management. Tannery solid waste (TSW) can be added to the soil as an organic amendment but needs metal removal. Chelant-assisted phytoremediation hastens the process of metal removal but also poses risk of leaching at the same time. This research evaluates Ethylenediaminetetraacetic acid (EDTA)-assisted phytoextraction and associated leaching hazard using metal-tolerant plants. Greenhouse trials were carried out with sunflower, spinach, and marigold using columns of uniform diameter packed with field soil and multimetal contamination of TSW (5% and 10%) with four EDTA doses...
December 2, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28587561/short-term-motor-learning-and-retention-during-visually-guided-walking-in-persons-with-multiple-sclerosis
#17
Kayla McGowan, Shaila M Gunn, Galina Vorobeychik, Daniel S Marigold
BACKGROUND: The ability to adapt, a form of short-term motor learning, and retain this adaptation, is essential for rehabilitation and for day-to-day living. Yet little research is available on this topic in persons with multiple sclerosis (PwMS), particularly in relation to complex walking tasks. OBJECTIVE: To determine the ability of PwMS to learn and retain a novel relationship between visual input and motor output-or visuomotor map-during visually guided walking...
July 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28532966/bulimia-nervosa-purging-disorder
#18
Marigold Castillo, Eric Weiselberg
Bulimia nervosa was first described in 1979 by British psychiatrist Gerald Russell as a "chronic phase of anorexia nervosa" in which patients overeat and then use compensatory mechanisms, such as self-induced vomiting, laxatives, or prolonged periods of starvation. The characterization of bulimia nervosa continues to evolve with the introduction of the DSM-5 in 2013. In this article, the epidemiology and risk factors of bulimia nervosa are identified and reviewed, along with the medical complications and psychiatric comorbidities...
April 2017: Current Problems in Pediatric and Adolescent Health Care
https://www.readbyqxmd.com/read/28512726/cutaneous-reflex-modulation-during-obstacle-avoidance-under-conditions-of-normal-and-degraded-visual-input
#19
Daniel S Marigold, Andrew J Chang, Kim Lajoie
The nervous system integrates visual input regarding obstacles with limb-based sensory feedback to allow an individual to safely negotiate the environment. This latter source can include cutaneous information from the foot, particularly in the event that limb trajectory is not sufficient and there is an unintended collision with the object. However, it is not clear the extent to which cutaneous reflexes are modified based on visual input. In this study, we first determined if phase-dependent modulation of these reflexes is present when stepping over an obstacle during overground walking...
August 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28494614/evaluation-of-pigments-from-methanolic-extract-of-tagetes-erecta-and-beta-vulgaris-as-antioxidant-and-antibacterial-agent
#20
Mariya Saani, Reena Lawrence, Kapil Lawrence
The Total Phenolic Content (TPC), antioxidant and antibacterial activities of methanolic extract of Marigold flower (MF) (Tagetes erecta) and Beet root (BR) (Beta vulgaris) were examined. The present work reveals that MF contained greater amount of TPC (42.5 mg/g GAE) as compared to BR (39.4 mg/g GAE). Methanolic extract of MF exhibited excellent DPPH free radical scavenging power (IC50 0.0716 mg/mL) and reducing power at 1 mg/mL concentration. Similar results have been obtained in FTC and TBA method. The results of antibacterial test indicated that the methanolic extract of MF and BR is significantly effective against both type of Gram-negative (Escherichia coli, Shigella dysenteriae) and Gram-positive (Bacillus subtilis, Staphylococcus aureus) bacterial strains...
May 11, 2017: Natural Product Research
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