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https://www.readbyqxmd.com/read/28866331/microcystin-lr-exposure-induces-oxidative-damage-in-caenorhabditis-elegans-protective-effect-of-lutein-extracted-from-marigold-flowers
#1
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...
August 31, 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
#2
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-multi-metal-soil-columns-using-edta-and-three-metal-bioaccumulators
#3
Firdaus-E- Bareen, Sarwat Saeed, Humera Afrasiab
Tannery waste is a major environmental concern needing 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. This research evaluates 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 multi-metal contamination of TSW (5% and 10%) with four EDTA doses...
July 5, 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
#4
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
#5
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
#6
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
#7
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
https://www.readbyqxmd.com/read/28202077/repellent-effects-of-the-essential-oils-of-cymbopogon-citratus-and-tagetes-minuta-on-the-sandfly-phlebotomus-duboscqi
#8
Albert Kimutai, Moses Ngeiywa, Margaret Mulaa, Peter G N Njagi, Johnstone Ingonga, Lydia B Nyamwamu, Cyprian Ombati, Philip Ngumbi
BACKGROUND: The sandfly, Phlebotomus duboscqi is a vector of zoonotic cutaneous leishmaniasis (ZCL) that is an important public health problem in Eastern Africa. Repellents have been used for protection of humans against vectors of ZCL and other vectors that transmit killer diseases including malaria, Rift Valley fever, dengue, and yellow fever. The repellent effects of different doses of the essential oils from the lemon grass, Cymbopogon citratus and Mexican marigold, Tagetes minuta were evaluated in a two-chamber bioassay against 3- to 7-day-old unfed females of P...
February 15, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28183833/cytogeography-of-the-subalpine-marsh-marigold-polyploid-complex-caltha-leptosepala-s-l-ranunculaceae
#9
Keir M Wefferling, Sílvia Castro, João Loureiro, Mariana Castro, Daniela Tavares, Sara B Hoot
PREMISE OF THE STUDY: Unrecognized variation in ploidy level can lead to an underestimation of species richness and a misleading delineation of geographic range. Caltha leptosepala (Ranunculaceae) comprises a complex of hexaploids (6x), rare nonaploids (9x), and dodecaploids (12x), all with unknown distributions. We delineate the geographic distribution and contact zones of the cytotypes, investigate morphologies of cytotypes and subspecies, and discuss the biogeography and evolutionary history of the polyploid complex...
February 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28158923/ultrathin-mesoporous-ruco2-o4-nanoflakes-an-advanced-electrode-for-high-performance-asymmetric-supercapacitors
#10
Deepak P Dubal, Nilesh R Chodankar, Rudolf Holze, Do-Heyoung Kim, Pedro Gomez-Romero
A new ruthenium cobalt oxide (RuCo2 O4 ) with a unique marigold-like nanostructure and excellent performance as an advanced electrode material has been successfully prepared by a simple electrodeposition (potentiodynamic mode) method. The RuCo2 O4 marigolds consist of numerous clusters of ultrathin mesoporous nanoflakes, leaving a large interspace between them to provide numerous electrochemically active sites. Strikingly, this unique marigold-like nanostructure provided excellent electrochemical performance in terms of high energy-storage capacitance (1469 F g(-1) at 6 A g(-1) ) with excellent rate proficiency and long-lasting operating cycling stability (ca...
April 22, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28152899/initiating-a-lymphedema-screening-program-for-breast-cancer-patients-determining-variability-as-a-first-step-towards-standardization
#11
Susan E Ferguson, Sarah Marie DeSnyder, Parviz Kheirkhah, Susan Lilly, Marigold Travis, Theresa Johnson, Ana Alvarez, Duke Rohe, Thomas A Buchholz, Isabelle Bedrosian
267 Background: Breast cancer-related lymphedema (BCRL) is a known morbidity from treatment, and yet published estimates of its incidence are highly variable. Typically, a single volume measurement is recorded and the degree of intra-rater variability undefined. A threshold 5% limb volume change over time is used to define "mild lymphedema." Therefore, small variations in volume measurements could substantially lead to over or under-diagnosis of BRCL. Gage R&R is a measurement systems analysis tool that quantifies the amount of variability induced in measurements by the measurement system itself and compares this to the total variability observed...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28133596/hydrolysis-of-carotenoid-esters-from-tagetes-erecta-by-the-action-of-lipases-from-yarrowia-lipolytica
#12
Abraham Figueiras Abdala, Alfonso Pérez Gallardo, Lorenzo Guevara Olvera, Eleazar Máximo Escamilla Silva
The present study was conducted to evaluate the feasibility of enzymatic hydrolysis of carotenoid esters from Tagetes erecta using lipases from the yeast of Yarrowia lipolytica, with the aim of obtaining free lutein. The optimal concentrations of seven nutrients, considering the production of lipases relative to biomass (Yp/x) as the response variable, were determined in flask fermentations. In addition, we studied the effect on hydrolysis of growing Y. lipolytica in the presence of the oleoresin of the marigold flower in flask and stirred tank...
2017: Bioresources and Bioprocessing
https://www.readbyqxmd.com/read/28063268/evaluation-of-the-quality-of-herbal-teas-by-dart-tof-ms
#13
J Prchalová, F Kovařík, A Rajchl
The paper focuses on the optimization, settings and validation of direct analysis in real time coupled with time-of-flight detector when used for the evaluation of the quality of selected herbal teas (fennel, chamomile, nettle, linden, peppermint, thyme, lemon balm, marigold, sage, rose hip and St. John's wort). The ionization mode, the optimal ionization temperature and the type of solvent for sample extraction were optimized. The characteristic compounds of the analysed herbal teas (glycosides, flavonoids and phenolic and terpenic substances, such as chamazulene, anethole, menthol, thymol, salviol and hypericin) were detected...
February 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/27981402/the-response-of-marigold-tagetes-erecta-linn-to-ozone-impacts-on-plant-growth-and-leaf-physiology
#14
Ning Yang, Xiaoke Wang, Feixiang Zheng, Yuanyuan Chen
Progressively increasing ozone (O3) concentrations pose a potential threat to the value of marigold (Tagetes erecta Linn.), a plant widely used in urban landscaping. The response of marigold to elevated O3 has been reported earlier, but the mechanisms underlying the O3 effect have not been clearly elucidated. In the present study, we exposed marigold "Moonsong Deep Orange" plants to elevated O3, including ambient non-filtered air (NF) plus 60 ppb (NF+60) and 120 ppb (NF+120) O3, to assess visible injury and the possible physiological consequences of this pollutant...
January 2017: Ecotoxicology
https://www.readbyqxmd.com/read/27975808/gram-scale-purification-of-faradiol-from-common-marigold
#15
D Csupor, S Izrael, N Kúsz, A Horváth
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27956358/in-vitro-studies-to-evaluate-the-wound-healing-properties-of-calendula-officinalis-extracts
#16
Christoph Nicolaus, Susanne Junghanns, Anja Hartmann, Renato Murillo, Markus Ganzera, Irmgard Merfort
ETHNOPHARMACOLOGICAL RELEVANCE: Calendula officinalis (pot marigold) flower extracts have a long-lasting tradition in ethnopharmacology. Currently, the European Medicines Agency (EMA) has approved its lipophilic and aqueous alcoholic extracts as traditional medicinal products for the treatment of minor inflammation of the skin and as an aid in the healing of minor wounds. AIM OF THE STUDY: The purpose of this study was to analyse the molecular mechanism of the wound healing effects of Calendula extracts, which may reflect the phytomedicines currently used in the market...
January 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27904457/altering-conidial-dispersal-of-alternaria-solani-by-modifying-microclimate-in-tomato-crop-canopy
#17
Prashant Prakash Jambhulkar, Nitiprasad Jambhulkar, Madanlal Meghwal, Gauri Shankar Ameta
Early blight of tomato caused by Alternaria solani, is responsible for severe yield losses in tomato. The conidia survive on soil surface and old dry lower leaves of the plant and spread when suitable climatic conditions are available. Macroclimatic study reveals that highest inoculum concentration of Alternaria spores appeared in May 2012 to 2013 and lowest concentration during January 2012 to 2013. High night temperature positively correlated and significantly (P < 0.01) involved in conidial spore dispersal and low relative humidity (RH) displayed significant (P < 0...
December 2016: Plant Pathology Journal
https://www.readbyqxmd.com/read/27876974/mosquito-larvicidal-activity-of-cadmium-nanoparticles-synthesized-from-petal-extracts-of-marigold-tagetes-sp-and-rose-rosa-sp-flower
#18
Amita Hajra, Snehali Dutta, Naba Kumar Mondal
Mosquitoes are blood-thirsty insects and serve as the most important vectors for spreading most notorious diseases such as malaria, yellow fever, dengue fever, and filariasis. The extensive use of synthetic mosquito repellent has resulted in resistance in mosquitoes. Therefore, the development of a reliable, eco-friendly processes for the synthesis of nano dimensional materials is an utmost important aspect of nanotechnology. In the present study, authors report absolute green synthesis of cadmium nanoparticles using marigold and rose flower petal extract...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27796089/bioaccessibility-and-antioxidant-activity-of-calendula-officinalis-supercritical-extract-as-affected-by-in-vitro-codigestion-with-olive-oil
#19
Diana Martin, Joaquín Navarro Del Hierro, David Villanueva Bermejo, Ramón Fernández-Ruiz, Tiziana Fornari, Guillermo Reglero
Supercritical extracts of marigold (ME) were produced and characterized. The bioaccessibility of terpenes, especially that of pentacyclic triterpenes (PT), the particle-size distribution, and antioxidant activity after the in vitro codigestion of ME with olive oil (OO) were determined. ME produced without cosolvent was richer in taraxasterol, lupeol, α-amyrin, and β-amyrin than extracts with cosolvent. All terpenes showed high bioaccessibility without OO (>75%). Significant correlations were found between the molecular properties of compounds (logP and number of rotatable bonds) and their bioaccessibility...
November 23, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27784800/consolidation-of-visuomotor-adaptation-memory-with-consistent-and-noisy-environments
#20
Rodrigo S Maeda, Steven E McGee, Daniel S Marigold
Our understanding of how we learn and retain motor behaviors is still limited. For instance, there is conflicting evidence as to whether the memory of a learned visuomotor perturbation consolidates; i.e., the motor memory becomes resistant to interference from learning a competing perturbation over time. Here, we sought to determine the factors that influence consolidation during visually guided walking. Subjects learned a novel mapping relationship, created by prism lenses, between the perceived location of two targets and the motor commands necessary to direct the feet to their positions...
January 1, 2017: Journal of Neurophysiology
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