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https://www.readbyqxmd.com/read/29331510/effects-of-sub-minimum-inhibitory-concentrations-of-lemon-essential-oil-on-the-acid-tolerance-and-biofilm-formation-of-streptococcus-mutans
#1
Yanwei Sun, Sijia Chen, Chen Zhang, Yali Liu, Li Ma, Xiangyu Zhang
OBJECTIVES: Lemon essential oil (LEO) is a kind of secondary metabolite from lemon peels and has been found to inhibit cariogenic bacteria for decades. However, its effects on main cariogenic virulence factors are rarely reported. The present study aimed to investigate the effects of sub-minimum inhibitory concentrations (sub-MICs) of LEO on the acid tolerance and biofilm formation of Streptococcus mutans (S. mutans) and preliminarily reveal the possible underlying mechanisms. DESIGNS: Effects of LEO on the acid tolerance and biofilm formation of S...
December 29, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29324427/lemons-in-the-arizona-sunshine-the-effects-of-furocoumarins-leading-to-phytophotodermatitis-and-burn-like-injuries
#2
Marc R Matthews, Joel C VanderVelde, Daniel M Caruso, Kevin N Foster
INTRODUCTION: Phytophototoxic dermatitis is a strong phototoxic reaction to ultraviolet A (UV-A) radiation exposure after cutaneous contact with citrus fruit containing furocoumarins, leading to skin injury. At the Arizona Burn Center (Phoenix, AZ), the majority of these injuries are managed in the outpatient setting. CASE REPORT: The authors present a pediatric admission for burn-like injuries following prolonged cutaneous exposure to lemons while playing in the Arizona sunshine...
December 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29322059/citrus-seed-oils-efficacy-against-larvae-of-aedes-aegypti
#3
Hazrat Bilal, Waseem Akram, Soaib Ali Hassan, Sadrud Din
Background: Dengue fever is a serious public health issue in Pakistan for many years. Globally plants have been reported to contain compounds with insecticidal properties. These properties have been demonstrated more recently on the larval stages of mosquitoes. Therefore, Citrus cultivar seeds were evaluated for larvicidal potential against the primary dengue vector Aedes aegypti. Methods: Extraction of oil was done by a steam distillation method and oils were evaluated according to WHO guidelines for larvicides 2005 for evaluation of insecticidal properties of citrus seed extracts against mosquito larvae...
September 2017: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/29318991/in-vitro-investigation-of-the-pediculicidal-activities-of-the-volatile-oil-components-of-some-medical-plants-raised-in-turkey
#4
M Emin Limoncu, Cüneyt Balcıoğlu, Tuğba Oyur, Gizem Zeybek, Ulvi Zeybek
OBJECTIVE: The human head louse Pediculus capitis has recently acquired resistance to commercially available insecticides, which has expanded the search concerning the pediculicidal activities of some herbal products. The present study aimed to assess the in vitro pediculicidal activities of volatile oils extracted from 10 medical plants raised in Turkey: Rosa damascena (red provins rose), Pelargonium graveolens (geranium), Lavandula angustifolia (lavender), Salvia triloba (salvia), Rosmarinus officinalis (rosemary; two different chemotypes), Citrus bergamia (citrus tree), Cymbopogon nardus (citronella), Citrus limonum (lemon), and Cymbopogon flexuosus (lemongrass)...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29316170/luminescence-of-lemon-derived-carbon-quantum-dot-and-its-potential-application-in-luminescent-probe-for-detection-of-mo6-ions
#5
Bui Thi Hoan, Pham Van Huan, Hoang Nhu Van, Duy Hung Nguyen, Phuong Dinh Tam, Khoi Thi Nguyen, Vuong-Hung Pham
This article reports on the first attempt of a systematic study on the synthesis of carbon dots (C-dots) for the potential applications in labeling and detection of molybdenum ion (Mo6+ ). Carbon dots (C-dots) were synthesized directly via a simple hydrothermal method using lemon juices as carbon precursor with different temperatures to control the luminescence of C-dots. The obtained C-dots had strong green light emission and the ability to use its luminescence properties as probes for Mo6+ detection application, which is based on Mo6+ induced luminescence quenching of C-dots...
January 9, 2018: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/29313251/unintentional-and-sequential-lead-exposure-from-a-ceramic-mug-and-maca-lepidium-meyenii
#6
Kelly Johnson-Arbor, Kathy Vo, Flavia Wong, Ryszard Gajek
Although the incidence of lead poisoning has decreased in the USA over the last 30 years, human exposures to lead-containing products are still reported. We present a case of unintentional lead exposure from a store-bought ceramic mug and a nutritional supplement. A 32-year-old female was found to have a whole blood lead concentration of 44 μg/dL. Evaluation of her home, occupation, and hobbies initially did not identify a source of lead exposure. Further investigation revealed that the likely etiology of the exposure was lead leaching from a ceramic mug used by the patient to drink hot lemon water while she was pregnant...
January 8, 2018: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/29311278/bacterial-surface-spreading-is-more-efficient-on-nematically-aligned-polysaccharide-substrates
#7
David J Lemon, Derek A Schutzman, Anthony G Garza
Biofilm-forming bacteria typically deposit a layer of polysaccharide on the surfaces they inhabit; hence, polysaccharide is their immediate environment on such surfaces. Previously, we showed that many biofilm-forming bacteria preferentially spread in the direction of aligned and densely packed polysaccharide fibers in compressed substrates, a behavior we referred to as polymertropism. This arrangement of polysaccharide fibers is likely to be similar to that found in the "slime" trails deposited by many biofilm-forming bacteria and would explain previous observations that bacteria tend to follow these trails of polysaccharide...
January 8, 2018: Journal of Bacteriology
https://www.readbyqxmd.com/read/29306187/the-ellagitannin-het-induces-electrolyte-leakage-calcium-influx-and-the-accumulation-of-nitric-oxide-and-hydrogen-peroxide-in-strawberry
#8
Gustavo Gabriel Martos, Alicia Mamaní, María Paula Filippone, Atilio Pedro Castagnaro, Juan Carlos Díaz Ricci
HeT (1-0-galloyl-2,3; 4,6-bis-hexahydroxydiphenoyl-β-D-glucopyranose) is a penta-esterified ellagitannin obtained from strawberry leaves. Previous studies have shown that foliar application of HeT prior to inoculation with a virulent pathogen increases the resistance toward Colletotrichum acutatum in strawberry plants and to Xanthomonas citri subsp. citri in lemon plants. In this work we report that HeT induces an immediate leak of electrolytes, the hyperpolarization of the cellular membrane, a rapid Ca2+ influx to the cytoplasm during the first few seconds, which in turn modulates the accumulation of nitric oxide 5 min after treatment...
December 27, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29305990/effect-of-yeast-xanthophyllomyces-dendrorhous-and-plant-saint-john-s-wort-lemon-balm-and-rosemary-extract-based-functional-diets-on-antioxidant-and-immune-status-of-atlantic-salmon-salmo-salar-subjected-to-crowding-stress
#9
Sebastián Reyes-Cerpa, Eva Vallejos-Vidal, María José Gonzalez-Bown, Jonathan Morales-Reyes, Diego Pérez-Stuardo, Deborah Vargas, Mónica Imarai, Víctor Cifuentes, Eugenio Spencer, Ana María Sandino, Felipe E Reyes-López
Salmon farming may face stress due to the intensive culture conditions with negative impacts on overall performance. In this aspect, functional feed improves not only the basic nutritional requirements but also the health status and fish growth. However, to date no studies have been carried out to evaluate the effect of functional diets in salmon subjected to crowding stress. Thus, the aim of this study was to evaluate the effect of yeast (Xanthophyllomyces dendrorhous; diet A) and the combination of plant extracts (common Saint John's wort, lemon balm, and rosemary; diet B) on the antioxidant and immune status of Atlantic salmon grown under normal cultured conditions and then subjected to crowding stress...
January 3, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29302908/heavy-metals-in-handloom-dyeing-effluents-and-their-biosorption-by-agricultural-byproducts
#10
Kamrun Nahar, Md Abul Khair Chowdhury, Md Akhter Hossain Chowdhury, Afzal Rahman, K M Mohiuddin
The Madhabdi municipality in the Narsingdi district of Bangladesh is a well-known area for textile, handloom weaving, and dyeing industries. These textile industries produce a considerable amount of effluents, sewage sludge, and solid waste materials every day that they directly discharge into surrounding water bodies and agricultural fields. This disposal poses a serious threat to the overall epidemic and socio-economic pattern of the locality. This research entailed the collection of 34 handloom-dyeing effluent samples from different handloom-dyeing industries of Madhabdi, which were then analyzed to determine the contents of the heavy metals iron (Fe), zinc (Zn), copper (Cu), chromium (Cr), manganese (Mn), lead (Pb), and cadmium (Cd)...
January 4, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29290466/structural-insights-into-yeast-telomerase-recruitment-to-telomeres
#11
Hongwen Chen, Jing Xue, Dmitri Churikov, Evan P Hass, Shaohua Shi, Laramie D Lemon, Pierre Luciano, Alison A Bertuch, David C Zappulla, Vincent Géli, Jian Wu, Ming Lei
Telomerase maintains chromosome ends from humans to yeasts. Recruitment of yeast telomerase to telomeres occurs through its Ku and Est1 subunits via independent interactions with telomerase RNA (TLC1) and telomeric proteins Sir4 and Cdc13, respectively. However, the structures of the molecules comprising these telomerase-recruiting pathways remain unknown. Here, we report crystal structures of the Ku heterodimer and Est1 complexed with their key binding partners. Two major findings are as follows: (1) Ku specifically binds to telomerase RNA in a distinct, yet related, manner to how it binds DNA; and (2) Est1 employs two separate pockets to bind distinct motifs of Cdc13...
December 27, 2017: Cell
https://www.readbyqxmd.com/read/29288907/effect-of-pomegranate-based-marinades-on-the-microbiological-chemical-and-sensory-quality-of-chicken-meat-a-metabolomics-approach
#12
Anastasia E Lytou, George-John E Nychas, Efstathios Z Panagou
Pomegranate juice is a product with enhanced functional properties that could be used as an alternative to traditional marination ingredients and effectively retard microbial growth along with providing an improved sensory result. In this study, two pomegranate based marinades were prepared for the marination of chicken breast fillets and the marinated samples were aerobically stored at 4 and 10°C for 9days. Raw, non-marinated chicken samples were used as control. Levels of total viable counts (TVC), Pseudomonas spp...
December 21, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29287447/the-effect-of-edible-coating-based-on-arabic-gum-sodium-caseinate-and-essential-oil-of-cinnamon-and-lemon-grass-on-guava
#13
Sanchita Biswas Murmu, Hari Niwas Mishra
The effect of five coating formulations viz.: (A) 5% Arabic gum (AG)+1% sodium caseinate (SC)+1% cinnamon oil (CE); (B) 5% AG + 1% SC + 2% CE; (C) 5% AG + 1% SC + 1% lemongrass oil (LG); (D) 5% AG + 1% SC + 2% LG; and (E) 5% AG + 1% SC + 2% CE + 2% LG on guava during 35 days storage at 4-7 °C was investigated. Thereafter samples were allowed to ripen for five days at 25 ± 2 °C. The quality of guava was analyzed at an interval of 7, 21, 35 and 40 days. The coating applications resulted in lower activity of PPO & POD, higher DPPH radical scavenging activity, higher retention of ascorbic acid, phenol & flavonoid content, exhibited slower rise of reducing and total sugar in guava pulp...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29283605/cognates-facilitate-switches-and-then-confusion-contrasting-effects-of-cascade-versus-feedback-on-language-selection
#14
Chuchu Li, Tamar H Gollan
The current study investigated the hypothesis that cognates (i.e., translation equivalents that overlap in form, e.g., lemon is limón in Spanish) facilitate language switches. Spanish-English bilinguals were cued to switch languages while repeatedly naming pictures with cognate versus noncognate names in separate (Experiment 1) or mixed (Experiments 2 and 3) blocks. In all 3 experiments, on the first presentation of each picture, cognates elicited significantly smaller switch costs and were produced faster than noncognates only on switch trials...
December 28, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/29282740/use-of-tunisian-flavored-olive-oil-as-anisakicidal-agent-in-industrial-anchovy-marinating-process
#15
Najla Trabelsi, Stefania M Marotta, Filippo Giarratana, Amani Taamali, Mokhtar Zarrouk, Graziella Ziino, Alessandro Giuffrida
BACKGROUND: Natural compounds are more frequently used against Anisakis, responsible of an important fish borne disease, anisakidosis. The aim of the study was to evaluate the effectiveness of enriched Tunisian olive oil with different spices (Cumin, Turmeric, Clove, Thyme and Lemon) against Anisakis larvae Type 1. RESULTS: In vitro experiment: larvae were submerged separately in the above mentioned oils, and then, examined, to check viability. For each oil, LT50 and LT100 were calculated...
December 28, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29261033/changes-in-user-perceptions-of-a-telemedicine-system-over-time-from-initial-implementation-to-everyday-use
#16
Christopher Lemon, Na Liu, Stuart Lane, Archana Sud, James Branley, Mohamed Khadra, Jinman Kim
BACKGROUND: Benefits associated with telemedicine are contingent upon positive user perceptions. Despite this, research on user perceptions of telemedicine remains limited. INTRODUCTION: Usability approaches offer a robust way to assess user perceptions, but have rarely been applied in telemedicine. In this study, a usability approach was employed to examine how user perceptions toward a telemedicine system changed over the course of everyday use. MATERIALS AND METHODS: A telemedicine system was introduced to a hospital in the home service...
December 20, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29258916/potential-of-selected-lamiaceae-plants-in-anti-retro-viral-therapy
#17
REVIEW
Maja Bekut, Snežana Brkić, Nebojša Kladar, Gordana Dragović, Neda Gavarić, Biljana Božin
Constant search for new drugs with antiviral properties often extends to products of natural origin. Lamiaceae is one of the most important herbal families, well known for various biological and medicinal effects of a variety of aromatic spices, including thyme, mint, oregano, basil, sage, savory, rosemary, self-heal, hyssop, lemon balm and many others. The paper provides a review of antiviral potential of previously mentioned plants which has been demonstrated so far, with special emphasis on anti-HIV properties...
December 16, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29242778/emerging-citrus-diseases-in-europe-caused-by-species-of-diaporthe
#18
Vladimiro Guarnaccia, Pedro W Crous
Species of Diaporthe are considered important plant pathogens, saprobes, and endophytes on a wide range of plant hosts. Several species are well-known on citrus, either as agents of pre- or post-harvest infections, such as dieback, melanose and stem-end rot on fruit. In this study we explored the occurrence, diversity and pathogenicity of Diaporthe species associated with Citrus and allied genera in European orchards, nurseries, and gardens. Surveys were carried out during 2015 and 2016 in Greece, Italy, Malta, Portugal, and Spain...
December 2017: IMA Fungus
https://www.readbyqxmd.com/read/29241320/influence-of-marinades-on-shear-force-structure-and-sensory-properties-of-home-style-jerky
#19
Joanna Żochowska-Kujawska, Marek Kotowicz, Kazimierz Lachowicz, Małgorzata Sobczak
BACKGROUND: Products from dried meat have been sold for many years as snack foods. The most important sensory attributes of this type of food are texture and flavour, determined by the selection of the raw material and the effect of numerous technological factors. The aim of the study was to investigate the structure, sen- sory and mechanical properties of meat snacks produced under non-commercial conditions using wild boar, roe deer and beef as raw material. METHODS: Jerky was prepared from Longissimus muscle treated (24 h, 4°C) with the follow- ing marinades before drying at 55°C for 6 h: (a) spices, (b) lemon & honey marinade, (c) marinating with balsamic vinegar marinade, (d) dipping into pineapple marinade, and (e) using ginger marinade...
October 2017: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/29229591/clinic-versus-online-social-network-delivered-lifestyle-interventions-protocol-for-the-get-social-noninferiority-randomized-controlled-trial
#20
Monica L Wang, Molly E Waring, Danielle E Jake-Schoffman, Jessica L Oleski, Zachary Michaels, Jared M Goetz, Stephenie C Lemon, Yunsheng Ma, Sherry L Pagoto
BACKGROUND: Online social networks may be a promising modality to deliver lifestyle interventions by reducing cost and burden. Although online social networks have been integrated as one component of multimodality lifestyle interventions, no randomized trials to date have compared a lifestyle intervention delivered entirely via online social network with a traditional clinic-delivered intervention. OBJECTIVE: This paper describes the design and methods of a noninferiority randomized controlled trial, testing (1) whether a lifestyle intervention delivered entirely through an online social network would produce weight loss that would not be appreciably worse than that induced by a traditional clinic-based lifestyle intervention among overweight and obese adults and (2) whether the former would do so at a lower cost...
December 11, 2017: JMIR Research Protocols
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