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https://www.readbyqxmd.com/read/29234423/antifungal-activity-of-essential-oils-against-candida-albicans-strains-isolated-from-users-of-dental-prostheses
#1
Julliana Cariry Palhano Freire, José Klidenberg de Oliveira Júnior, Daniele de Figueredo Silva, Janiere Pereira de Sousa, Felipe Queiroga Sarmento Guerra, Edeltrudes de Oliveira Lima
Objective: The objective of this study was to analyze the antifungal activity of citral, selected by screening natural products, against Candida albicans isolates from subjects who use dental prostheses. Methodology: Screening of essential oils, including those from Mentha piperita L. (Briq), Origanum vulgare, and Zingiber officinale L., and the phytoconstituents citral and limonene, to select an appropriate natural product. Citral, which mediated the best antifungal response, was selected for biological assays...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29197060/repellency-potential-of-essential-oils-against-housefly-musca-domestica-l
#2
Nitin Chauhan, Anushree Malik, Satyawati Sharma
In present study, the essential oils such as Mentha piperita (mentha oil, M.O), Cymbopogan citratus (lemongrass oil, LG.O), Citrus sinensis (orange oil, O.O), and Eucalyptus globulus (eucalyptus oil, E.O) were evaluated for repellency against housefly (Musca domestica) in a specially designed chamber. Further, to study any synergistic effect, essential oil combinations, i.e., M.O + LG.O, M.O + O.O, and M.O + E.O, were screened at 50:50 and 70:30 ratios. The results showed superior repellency of mentha and mentha + lemongrass (70:30) with RC95 value of 0...
December 2, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29163441/antifungal-and-anti-biofilm-activity-of-essential-oil-active-components-against-cryptococcus-neoformans-and-cryptococcus-laurentii
#3
Poonam Kumari, Rutusmita Mishra, Neha Arora, Apurva Chatrath, Rashmi Gangwar, Partha Roy, Ramasare Prasad
Cryptococcosis is an emerging and recalcitrant systemic infection occurring in immunocompromised patients. This invasive fungal infection is difficult to treat due to the ability of Cryptococcus neoformans and Cryptococcus laurentii to form biofilms resistant to standard antifungal treatment. The toxicity concern of these drugs has stimulated the search for natural therapeutic alternatives. Essential oil and their active components (EO-ACs) have shown to possess the variety of biological and pharmacological properties...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29155200/recent-advances-on-polysaccharides-lipids-and-protein-based-edible-films-and-coatings-a-review
#4
REVIEW
Bilal Hassan, Shahzad Ali Shahid Chatha, Abdullah Ijaz Hussain, Khalid Mahmood Zia, Naseem Akhtar
Food is a vital product for the survival of human beings and with passage of time quality concerns of consumers are rising. Edible films and coatings are thin layers applied on food products to protect them and improve their quality. Films/coatings are prepared from naturally occurring renewable sources (polysaccharides, proteins, lipids and composites) which we can eat without disposing them. These films are environment friendly and contain antioxidants, anti-browning agents and colorants. Various methods (spraying, brushing, electro-spraying) are used to apply a coating on food material to protect them from microbial growth, prolonging their shelf life and improving other quality aspects like sensory attributes, appearance, originality and freshness of ingredients...
November 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29116300/cymbopogon-citratus-essential-oil-effect-on-polymicrobial-caries-related-biofilm-with-low-cytotoxicity
#5
Maria Alcionéia Carvalho de Oliveira, Aline Chiodi Borges, Fernanda Lourenção Brighenti, Marcos José Salvador, Aline Vidal Lacerda Gontijo, Cristiane Yumi Koga-Ito
The objective of this study was to evaluate the effects of Cymbopogon citratus essential oil and its main compound (citral) against primary dental colonizers and caries-related species. Chemical characterization of the essential oil was performed by gas chromatography/mass spectroscopy (GC/MS), and the main compound was determined. Antimicrobial activity was tested against Actinomyces naeslundii, Lactobacillus acidophilus, S. gordonii, S. mitis, S. mutans, S. sanguinis and S. sobrinus. Minimum inhibitory and bactericide concentrations were determined by broth microdilution assay for streptococci and lactobacilli reference, and for clinical strains...
November 6, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/29079437/investigation-of-molecular-mechanism-of-recognition-between-citral-and-mark4-a-newer-therapeutic-approach-to-attenuate-cancer-cell-progression
#6
Farha Naz, Faez Iqbal Khan, Taj Mohammad, Parvez Khan, Saaliqa Manzoor, Gulam Mustafa Hasan, Kevin A Lobb, Suaib Luqman, Asimul Islam, Faizan Ahmad, Md Imtaiyaz Hassan
Microtubule affinity regulating kinase 4 (MARK4) is a member of AMP-activated protein kinase, found to be involved in apoptosis, inflammation and many other regulatory pathways. Since, its aberrant expression is directly associated with the cell cycle and thus cancer. Therefore, MARK4 is being considered as a potential drug target for cancer therapy. Here, we investigated the mechanism of inhibition of MARK4 activity by citral. Docking studies suggested that citral effectively binds to the active site cavity, and complex is stabilized by several interactions...
October 24, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29078261/antiproliferative-and-apoptosis-inducing-effects-of-citral-via-p53-and-ros-induced-mitochondrial-mediated-apoptosis-in-human-colorectal-hct116-and-ht29-cell-lines
#7
Bassem Y Sheikh, Md Moklesur Rahman Sarker, Muhamad Noor Alfarizal Kamarudin, Gokula Mohan
Despite various anticancer reports, antiproliferative and apoptosis inducing activity of citral in HCT116 and HT29 cells have never been reported. This study aimed to evaluate the cytotoxic and apoptosis inducing effects of citral in colorectal cancer cell lines. The citral-treated cells were subjected to MTT assay followed by flow cytometric Annexin V-FITC/PI, mitochondrial membrane potential and intracellular reactive oxygen species (ROS) determination. The apoptotic proteins expression was investigated by Western blot analysis...
October 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29072326/antimicrobial-activity-of-suspensions-and-nanoemulsions-of-citral-in-combination-with-heat-or-pulsed-electric-fields
#8
E Pagán, D Berdejo, L Espina, D García-Gonzalo, R Pagán
The application of essential oils in form of nanoemulsions has been proposed as a method to improve their solubility in aqueous solutions, and hence their antimicrobial activity. The objective of this study was to evaluate the antimicrobial activity of citral, applied directly or in combined treatments with heat or pulsed electric fields (PEF), as a function of the inoculation procedure assayed: (i) a simple, vigorous shaking method by vortex agitation (suspension of citral; s-citral) or (ii) the previous preparation of nanoemulsions by the emulsion phase inversion (EPI) method (nanoemulsion of citral; n-citral)...
October 26, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/29050966/characterization-of-gamma-tubulin-filaments-in-mammalian-cells
#9
Lisa Lindström, Maria Alvarado-Kristensson
Overexpression of γ-tubulin leads to the formation of filaments, but nothing is known about such filaments with regard to possible presence in cells, structure and probable dynamics. Here, we used mammalian cell lines to investigate the ability of γ-tubulin to form filaments. We found that γ-tubulin produces fibers called γ-tubules in a GTP-dependent manner and that γ-tubules are made up of pericentrin and the γ-tubulin complex proteins 2, 3, 5 and 6. Furthermore, we noted that the number of cells with cytosolic γ-tubules is increased in non-dividing cells...
October 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29038058/antimicrobial-and-synergistic-activity-of-essential-oils-of-aloysia-triphylla-and-lippia-alba-against-aeromonas-spp
#10
Renilde Cordeiro de Souza, Mateus Matiuzzi da Costa, Bernardo Baldisserotto, Berta Maria Heinzmann, Denise Schmidt, Braulio Otomar Caron, Carlos Eduardo Copatti
The objective of this study was to identify and quantify the chemical constituents, as well as the antimicrobial, antibiofilm and synergistic activity with florfenicol of essential oils of Aloysia triphylla (EOAT) and Lippia alba (EOLA) against Aeromonas spp. The antimicrobial activity of EOAT and EOLA was verified by the minimum bactericidal concentration (MBC) and the action against biofilm forming and consolidated biofilm. The synergistic activity of EOAT and EOLA with florfenicol was performed by the checkerboard technique...
October 14, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29033473/impact-of-atra-on-ovalbumin-and-mold-sensitized-f344-rats-and-reversal-of-health-related-implications-by-citral
#11
Ibrahim O Farah, Carlene Holt-Gray, Joseph A Cameron, Michelle Tucci, Hamed Benghuzzi
The role of retinoic acid (All Trans Retinoic Acid; ATRA) in the development of hypervitaminosis A pathophysiology is not well understood or established in the literature. As well, the role of Citral (inhibitor of retinoid function; a non-toxic chemical that exists in two forms (diethyl; C1 or cis-trans dimethyl; C2).) in the reversal of pathophysiological implications is also not ascertained under an in vivo setting. Therefore, it is hypothesized that ovalbumin exposure will sensitize the body to supra-physiologic levels of retinoic acid leading to a negative pathophysiological impact and that Citrals 1 and 2 will reverse or ameliorate the related damage to the body's pathophysiology...
March 2017: Biomedical Sciences Instrumentation
https://www.readbyqxmd.com/read/29033472/histopathological-analysis-of-the-f344-rat-lung-upon-exposure-to-retenoic-acid-ovalbumin-mold-spores-and-citral
#12
Ibrahim O Farah, Carlene Holt-Gray, Joseph A Cameron, Michelle Tucci, Hamed Benghuzzi
The paradoxical role of retinoic acid (All Trans Retinoic Acid; ATRA) in the development of allergic and/or inflammatory complications in contrast to a therapeutic modality for lung pathology is not well understood or established in the literature. As well, the role of Citral (inhibitor of retinoid function; a non-toxic chemical that exists in two forms (diethyl; C1 or cis-trans dimethyl; C2), in the reversal of retinoic acid, ovalbumin and allergic mold spore pathophysiology is also not well ascertained under an in vivo setting...
March 2017: Biomedical Sciences Instrumentation
https://www.readbyqxmd.com/read/29030319/coordination-of-different-ligands-to-copper-ii-and-cobalt-iii-metal-centers-enhances-zika-virus-and-dengue-virus-loads-in-both-arthropod-cells-and-human-keratinocytes
#13
Shovan Dutta, Michael J Celestine, Supreet Khanal, Alexis Huddleston, Colin Simms, Jessa Faye Arca, Amlan Mitra, Loree Heller, Piotr J Kraj, Michel Ledizet, John F Anderson, Girish Neelakanta, Alvin A Holder, Hameeda Sultana
Trace elements such as copper and cobalt have been associated with virus-host interactions. However, studies to show the effect of conjugation of copper(II) or cobalt(III) metal centers to thiosemicarbazone ligand(s) derived from either food additives or mosquito repellent such as 2-acetylethiazole or citral, respectively, on Zika virus (ZIKV) or dengue virus (serotype 2; DENV2) infections have not been explored. In this study, we show that four compounds comprising of thiosemicarbazone ligand derived from 2-acetylethiazole viz...
January 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28974979/improvement-of-citral-antimicrobial-activity-by-incorporation-into-nanostructured-lipid-carriers-a-potential-application-in-food-stuffs-as-a-natural-preservative
#14
Manijeh Mokarizadeh, Hossein Samadi Kafil, Saeed Ghanbarzadeh, Ainaz Alizadeh, Hamed Hamishehkar
At the present time, utilization of essential oils in food preservation to prevent bacterial and fungal growth and improve shelf life and safety of the food products has notably gained increased interest. The aim of the present study was to improve the antimicrobial efficacy of citral as a natural preservative using nanostructured lipid carriers (NLCs). Formulations of NLCs were characterized using particle size analysis and scanning electron microscopy methods. Possible citral-carrier interaction and citral encapsulation efficiency percent (EE%) were assessed by Fourier transform infrared (FTIR) spectroscopy and gas chromatography techniques, respectively...
October 2017: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28969111/citral-a-monoterpene-protect-against-high-glucose-induced-oxidative-injury-in-hepg2-cell-in-vitro-an-experimental-study
#15
Sri Devi Subramaniyan, Ashok Kumar Natarajan
INTRODUCTION: Diabetes mellitus, a major metabolic disorder associated with hyperglycaemia is one of the leading cause of death in many developed countries. However, use of natural phytochemicals have been proved to have a protective effect against oxidative damage. AIM: To investigate the effect of citral, a monoterpene on high glucose induced cytotoxicity and oxidative stress in human hepatocellular liver carcinoma (Hep G2) cell line. MATERIALS AND METHODS: Cells were treated with 50 mM concentration of glucose for 24 hours incubation following citral (30 μM) was added to confluent HepG2 cells...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28948452/citral-and-linalool-chemotypes-of-lippia-alba-essential-oil-as-anesthetics-for-fish-a-detailed-physiological-analysis-of-side-effects-during-anesthetic-recovery-in-silver-catfish-rhamdia-quelen
#16
Carine de Freitas Souza, Matheus Dellaméa Baldissera, Adriane Erbice Bianchini, Elisia Gomes da Silva, Rosa Helena Veraz Mourão, Lenise Vargas Flores da Silva, Denise Schmidt, Berta Maria Heinzmann, Bernardo Baldisserotto
The viability using Lippia alba essential oil as an anesthetic for fish was studied, particularly with respect to physiological effects during recovery. Anesthesia of silver catfish (Rhamdia quelen) using 100 and 300 μL L(-1) of two different chemotypes of L. alba essential oil (citral EO-C and linalool EO-L) prevented the increase of plasma cortisol levels caused by handling, but did not avoid alterations in energetic metabolism. Silver catfish did not have increased the levels of thiobarbituric acid reactive species in the kidney and liver during recovery after anesthesia with either EO, avoiding lipid damage...
September 26, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28930254/synthesis-antimicrobial-and-antioxidant-activities-of-chalcogen-containing-nitrone-derivatives-from-r-citronellal
#17
Mariana C Ferraz, Renata A Mano, Daniela H Oliveira, Darla S V Maia, Wladimir P Silva, Lucielli Savegnago, Eder J Lenardão, Raquel G Jacob
Background: The main constituents of Cymbopogonnardus (L) Rendle and C. citratus (DC) Stapfessential oils are (R)-citronellal and citral, respectively. Organochalcogen compounds can boost the biological activities of natural products. Methods: Several chalcogen-containing nitrones derived from (R)-citronellal and citral were prepared and evaluated for their antimicrobial and antioxidant activities. The antimicrobial activity was evaluated by the disc diffusion test and the antioxidant properties were evaluated in vitro by DPPH (1,1-diphenyl-2-picryl-hydrazyl), ABTS (2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid), and FRAP (ferric ion reducing antioxidant power) assays...
June 10, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929437/toxicities-of-monoterpenes-against-housefly-musca-domestica-l-diptera-muscidae
#18
Zhilin Zhang, Yongjian Xie, Yong Wang, Zhufeng Lin, Lihua Wang, Guoyuan Li
The development of natural plant extracts and essential oils will assist to decrease the negative effects of synthetic chemicals. Many plant extracts and essential oils contain monoterpenes, sesquiterpenes, and aliphatic compounds. In the present study, the fumigation activity of 42 pure monoterpenes against housefly, Musca domestica, was evaluated. Results from fumigation tests revealed that ρ-cymene, terpinolene, (±)-menthol, thymol, carvacrol, (-)-carvone, (+)-camphor, (+)-pulegone, (-)-menthone, citral, (±)-citronellal, cuminaldehyde, and citronellyl acetate exhibited strong fumigation activity against M...
November 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28928528/alginate-edible-films-containing-microencapsulated-lemongrass-oil-or-citral-effect-of-encapsulating-agent-and-storage-time-on-physical-and-antimicrobial-properties
#19
Jessica K Alarcón-Moyano, Rubén O Bustos, María Lidia Herrera, Silvia B Matiacevich
Active edible films have been proposed as an alternative to extend shelf life of fresh foods. Most essential oils have antimicrobial properties; however, storage conditions could reduce their activity. To avoid this effect the essential oil (EO) can be microencapsulated prior to film casting. The aim of this study was to determine the effects of the type of encapsulating agent (EA), type of EO and storage time on physical properties and antimicrobial activity of alginate-based films against Escherichia coli ATCC 25922...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28899514/citral-a-monoterpenoid-aldehyde-interacts-synergistically-with-norfloxacin-against-methicillin-resistant-staphylococcus-aureus
#20
Priyanka Gupta, Dinesh Kumar Patel, Vivek Kumar Gupta, Anirban Pal, Sudeep Tandon, M P Darokar
BACKGROUND: Staphylococcus aureus (SA), is a major human pathogen causing wide range of clinical infections, which has been further complicated by drug resistance like methicillin resistant S. aureus (MRSA), vancomycin intermediate S. aureus (VISA)/vancomycin resistant S. aureus (VRSA), etc. The present study was aimed at determining anti-staphylococcal potential of citral against drug resistant clinical isolates alone and in combination with antibiotics. PURPOSE: To assess the potential of citral in combination with norfloxacin in treating drug resistant infections of SA...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
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