Read by QxMD icon Read

Essential oils

Lin Huang, Lluis Capdevila
OBJECTIVE: This study analyzed the efficacy of aromatherapy in improving work performance and reducing workplace stress. SUBJECTS: The initial sample comprised 42 administrative university workers (Mage = 42.21 years, standard deviation = 7.12; 10 male). INTERVENTION: All sessions were performed in a university computer classroom. The participants were randomly assigned into an aromatherapy group (AG) and a control group (CG), and they were invited to participate in a specific session only once...
October 20, 2016: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
Seyyed Meysam Abtahi Froushani, Leila Zarei, Hadi Esmaeili Gouvarchin Ghaleh, Bahman Mansori Motlagh
OBJECTIVE: Some evidence suggests that chronic uptake of estragole and methyl-eugenol, found in the essential oil of Artemisia dracunculus (tarragon), may be associated with an increased risk of hepato-carcinogenicity. The present study was conducted to investigate the immumodulatory and anti-inflammatory potentials of estragole and methyl-eugenol free extract of tarragon. MATERIALS AND METHODS: Aqueous, hydroalcoholic, methanol and hexane extracts of dried and milled tarragon was prepared and analyzed by GC-MS...
September 2016: Avicenna Journal of Phytomedicine
Katrin Ochsenreither, Claudia Glück, Timo Stressler, Lutz Fischer, Christoph Syldatk
Polyunsaturated fatty acids (PUFAs) of the ω-3 and ω-6 class (e.g., α-linolenic acid, linoleic acid) are essential for maintaining biofunctions in mammalians like humans. Due to the fact that humans cannot synthesize these essential fatty acids, they must be taken up from different food sources. Classical sources for these fatty acids are porcine liver and fish oil. However, microbial lipids or single cell oils, produced by oleaginous microorganisms such as algae, fungi and bacteria, are a promising source as well...
2016: Frontiers in Microbiology
Grant J Aaron, Prahlad R Sodani, Rajan Sankar, John Fairhurst, Katja Siling, Ernest Guevarra, Alison Norris, Mark Myatt
A spatially representative statewide survey was conducted in Rajasthan, India to assess household coverage of atta wheat flour, edible oil, and salt. An even distribution of primary sampling units were selected based on their proximity to centroids on a hexagonal grid laid over the survey area. A sample of n = 18 households from each of m = 252 primary sampling units PSUs was taken. Demographic data on all members of these households were collected, and a broader dataset was collected about a single caregiver and a child in the first 2 years of life...
2016: PloS One
Baofu Qiao, Ross Elli, Geoffroy Ferru
We address the structures and energetics of ion solvation in aqueous and organic solutions to understand liquid-liquid ion transport. Atomistic molecular dynamics (MD) simulations with polarizable force field are performed to study the coordination transformations driving lanthanide (Ln(III)) and nitrate ion transport between aqueous and an alkylamide-oil solution. An enhancement of the coordination behavior in the organic phase is achieved in contrast with the aqueous solution. In particular, the coordination number of Ce3+ increases from 8...
October 19, 2016: Chemistry: a European Journal
Bushra Jamil, Rashda Abbasi, Shahid Abbasi, Muhammad Imran, Siffat U Khan, Ayesha Ihsan, Sundus Javed, Habib Bokhari, Muhammad Imran
Natural antimicrobial agents, particularly essential oils present an excellent alternative to current antibiotics due to their potent and broad-spectrum antimicrobial potential, unique mechanisms of action and low tendency to induce resistance. However their potential as a viable therapeutic alternative is greatly compromised due to their hydrophobic and volatile nature. The objective of the current research was to explore the anti-pathogenic potential of essential oils in a bio-based nano-carrier system. Six different essential oils were tested on multidrug-resistant bacterial pathogens...
2016: Frontiers in Microbiology
Svatopluk Binder, Adéla Hanáková, Kristína Tománková, Klára Pížová, Robert Bajgar, Barbora Manišová, Kristina Kejlová, Hana Bendová, Dagmar Jírová, Hana Kolářová
AIM: Natural or artificial substances have become an inseparable part of our lives. It is questionable whether adequate testing has been performed in order to ensure these substances do not pose a serious health risk. The principal aim of our research was to clarify the potential risk of adding essential oils to food, beverages and cosmetic products. METHODS: The toxicity of substances frequently employed in cosmetics, aromatherapy and food industry (bergamot oil, Litsea cubeba oil, orange oil, citral) were investigated using cell line NIH3T3 (mouse fibroblasts) with/without UV irradiation...
September 2016: Central European Journal of Public Health
Zygmunt Zdrojewicz, Marek Stebnicki, Michał Stebnicki
Sosnowsky's hogweed (Heracleum sosnowskyi Manden.) is a genus of plants in the family Apiaceae which also includes Giant Hogweed (Heracleum mantegazzianum Sommier and Levier). They are both found in Central Europe, mainly in neglected green areas or riversides. Sosnowsky's hogweed was brought to Poland from the Soviet Union in the 1950s to be used in animal feed production. Intended goals couldn't be achieved and the plant spread throughout grounds distant to the primarily cultivated lands. Sosnowsky's hogweed is especially hazardous in direct contact with human skin...
September 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
Todd P Michael, Douglas Bryant, Ryan Gutierrez, Nikolai Borisjuk, Philomena Chu, Hanzhong Zhang, Jing Xia, Junfei Zhou, Hai Peng, Moaine El Baidouri, Boudewijn Ten Hallers, Alex R Hastie, Tiffany Liang, Kenneth Acosta, Sarah Gilbert, Connor McEntee, Scott A Jackson, Todd C Mockler, Weixiong Zhang, Eric Lam
Spirodela polyrhiza is a fast-growing aquatic monocot with highly reduced morphology, genome size and number of protein-coding genes. Considering these biological features of Spirodela and its basal position in the monocot lineage, understanding its genome architecture could shed light on plant adaptation and genome evolution. Like many draft genomes, however, the 158 Mbp Spirodela genome sequence has not been resolved to chromosomes and important genome characteristics have not been defined. Here we deployed rapid genome-wide physical maps combined with high-coverage short-read sequencing to resolve the 20 chromosomes of Spirodela and to empirically delineate its genome features...
October 18, 2016: Plant Journal: for Cell and Molecular Biology
Dan-Dan Zhao, Li-Li Jiang, Hong-Yi Li, Peng-Fei Yan, Yan-Long Zhang
Paeonia is the single genus of ca. 33 known species in the family Paeoniaceae, found in Asia, Europe and Western North America. Up to now, more than 180 compounds have been isolated from nine species of the genus Paeonia, including terpenes, phenols, flavonoids, essential oil and tannins. Terpenes, the most abundant naturally occurring compounds, which accounted for about 57% and occurred in almost every species, are responsible for the observed in vivo and in vitro biological activities. This paper aims to give a comprehensive overview of the recent phytochemical and pharmacological knowledge of the terpenes from Paeonia plants, and enlighten further drug discovery research...
October 13, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Marika Rai, David Spratt, Paola R Gomez-Pereira, Jay Patel, Sean P Nair
Oral malodour is a common condition which affects a large proportion of the population, resulting in social, emotional and psychological stress. Certain oral bacteria form a coating called a biofilm on the tongue dorsum and degrade organic compounds releasing volatile sulfur compounds that are malodourous. Current chemical treatments for oral malodour such as mouthwashes containing chlorhexidine or essential oils, are not sufficiently effective at reducing the bacterial load on the tongue. One potential alternative to current chemical treatments for oral malodour is the use of light activated antimicrobial agents (LAAAs), which display no toxicity or antimicrobial activity in the dark, but when exposed to light of a specific wavelength produce reactive oxygen species which induce damage to target cells in a process known as photodynamic inactivation...
October 18, 2016: Journal of Breath Research
M H Minooeianhaghighi, L Sepehrian, H Shokri
OBJECTIVE: Recurrent vulvovaginal candidiasis (RVVC), which affects approximately 5% of women of reproductive age, is defined as 4 or more episodes of symptomatic Candida vaginitis within a year. The purposes of this study were to determine the chemical compositions and antifungal susceptibility of Cuminum cyminum (C. cyminum) and Lavandula binaludensis (L. binaludensis) essential oils and their combination against Candida albicans (C. albicans) strains isolated from patients with RVVC...
October 14, 2016: Journal de Mycologie Médicale
D Yesilbag, H Biricik, I Cetin, C Kara, Y Meral, S S Cengiz, A Orman, D Udum
This study aimed to evaluate the effects of juniper essential oil on the growth performance, rumen fermentation parameters, rumen protozoa population, blood antioxidant enzyme parameters and faecal content in growing Saanen kids. Thirty-six male Saanen kids (36 ± 14 days of age) were used in the study. Each group consisted of 9 kids. The control group (G1) was fed with a diet that consisted of the above concentrated feed and oat hay, whereas the experimental groups consumed the same diet but with the concentrated feed uniformly sprayed with juniper essential oil 0...
October 16, 2016: Journal of Animal Physiology and Animal Nutrition
Carmen Mannucci, Michele Navarra, Fabrizio Calapai, Raffaele Squeri, Sebastiano Gangemi, Gioacchino Calapai
Citrus bergamia Risso et Poiteau ("Bergamot") originated from the Mediterranean ecoregion (southern Italy, Calabria). Bergamot essential oil (BEO) is used in perfumes, cosmetics, and for stress reduction. Juice from C. bergamia has been used for hyperlipidemia. We evaluated literature published on C. bergamia clinical applications. Clinical trials on C. bergamia not combined with other substances, published in English, were searched. We selected ten articles, six describing BEO effects on stress, three reporting effects of polyphenolic fraction of C...
October 17, 2016: Phytotherapy Research: PTR
J M Diaz Carrasco, L M Redondo, E A Redondo, J E Dominguez, A P Chacana, M E Fernandez Miyakawa
Necrotic enteritis (NE) is an important concern in poultry industry since it causes economic losses, increased mortality, reduction of bird welfare, and contamination of chicken products for human consumption. For decades, the use of in-feed antimicrobial growth promoters (AGPs) has been the main strategy to control intestinal pathogens including Clostridium perfringens (CP), the causative agent of NE. However, the use of AGPs in animal diet has been linked to the emergence and transmission of antimicrobial resistance through food-borne microorganisms, which has led to the ban of AGPs in many countries...
2016: BioMed Research International
Qiang Zhang, Xuan Wu, Zhiping Liu
The contact and fumigant toxicity as well as repellent activity of 10 plant essential oils were evaluated against Paederus fuscipes Curtis adults. Essential oils were identified through gas chromatography-mass spectrometry analysis. Results showed that wintergreen oil exhibited optimal contact and fumigant toxicity but had no significant repellent activity against P. fuscipes The LC50 values of fumigant toxicity of wintergreen oil were 2.680 and 1.591 µL/L air after 1 and 8 h of exposure, respectively...
October 15, 2016: Journal of Economic Entomology
Yosra Ben-Fadhel, Sabrina Saltaji, Mohamed Ali Khlifi, Stephane Salmieri, Khanh Dang Vu, Monique Lacroix
The antimicrobial activity of essential oils (EOs), organic acid (OA) salts and natamycin, a natural antifungal produced during fermentation by the bacterium Streptomyces natalensis, was assessed against four pathogens (Escherichia coli O157:H7, Listeria monocytogenes, Salmonella Typhimurium and Aspergillus niger). The Minimum Inhibitory Concentration (MIC) of each antimicrobial (AM) was assessed to determine their efficiency on tested microbial species in order to select the most efficient. Then, the interactions between different antimicrobial compounds showing the lowest MIC were determined by the checkerboard method...
October 11, 2016: International Journal of Food Microbiology
Junheon Kim, Miyeon Jang, Eunsik Shin, Jeongmin Kim, Si Hyeock Lee, Chung Gyoo Park
Fumigant and contact toxicities of 22 plant essential oils (EOs) from 14 families and their constituents against the adult spotted wing drosophila (SWD), Drosophila suzukii were examined. Analyses by GC, GC-MS, and NMR led to the identification of 2, 16, 13, 4, 6, 9, and 10 compounds from Gaultheria fragrantissima, Croton anistatum, Illicium verum, Liquidamabar orientalis, Cinnamomum cassia, Rosa damasena, and Santalum album, respectively. In fumigant toxicity test, G. fragrantissima, C. anistatum, and I. verum exhibited 100, 93...
October 2016: Pesticide Biochemistry and Physiology
Jun-Hyung Tak, Murray B Isman
Although screening for new and reliable sources of botanical insecticides remains important, finding ways to improve the efficacy of those already in use through better understanding of their modes-of-action or metabolic pathways, or by improving formulations, deserves greater attention as the latter may present lesser regulation hurdles. Metabolic processing of citral (a combination of the stereoisomers geranial and neral), a main constituent of lemongrass (Cymbopogon citratus) essential oil has not been previously examined in insects...
October 2016: Pesticide Biochemistry and Physiology
Alexandre Y Saito, Adriana A Marin Rodriguez, Danielle S Menchaca Vega, Rodrigo A C Sussmann, Emília A Kimura, Alejandro M Katzin
Malaria, an infectious disease that kills more than 438,000 people per year worldwide, is a major public health problem. The emergence of strains resistant to conventional therapeutic agents necessitates the discovery of new drugs. We previously demonstrated that various substances, including terpenes, have antimalarial activity in vitro and in vivo. Nerolidol is a sesquiterpene present as an essential oil in several plants that is used in scented products and has been approved by the US Food and Drug Administration as a food-flavouring agent...
September 30, 2016: International Journal of Antimicrobial Agents
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"