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Essential oils

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https://www.readbyqxmd.com/read/28922713/peppermint-essential-oil-alleviates-hyperglycemia-caused-by-streptozotocin-nicotinamide-induced-type-2-diabetes-in-rats
#1
Suhair A Abdellatief, Rasha R Beheiry, Shefaa A M El-Mandrawy
The prevalence of diabetes mellitus is steadily growing throughout the world. Traditional medicine has an excellent potential in the treatment of diabetes mellitus. The present study was undertaken to evaluate the potential antidiabetic effect of peppermint essential oil (PEO) on streptozotocin (STZ) and nicotinamide induced diabetic rats. Diabetes was induced in rats fasting overnight by the intraperitoneal administration of nicotinamide followed by a single dose of STZ. After 72h, two groups of diabetic rats were treated with different doses of PEO (40 and 80mg/kg BW) respectively and one group was treated with the standard hypoglycemic agent glibenclamide...
September 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28919787/computational-tool-for-optimizing-the-essential-oils-utilization-in-inhibiting-the-bacterial-growth
#2
Noha E El-Attar, Wael A Awad
Day after day, the importance of relying on nature in many fields such as food, medical, pharmaceutical industries, and others is increasing. Essential oils (EOs) are considered as one of the most significant natural products for use as antimicrobials, antioxidants, antitumorals, and anti-inflammatories. Optimizing the usage of EOs is a big challenge faced by the scientific researchers because of the complexity of chemical composition of every EO, in addition to the difficulties to determine the best in inhibiting the bacterial activity...
2017: Advances and Applications in Bioinformatics and Chemistry: AABC
https://www.readbyqxmd.com/read/28919679/effects-of-intramammary-infusion-of-sage-salvia-officinalis-essential-oil-on-milk-somatic-cell-count-milk-composition-parameters-and-selected-hematology-and-serum-biochemical-parameters-in-awassi-sheep-with-subclinical-mastitis
#3
Myassar O Alekish, Zuhair B Ismail, Mofleh S Awawdeh, Shoroq Shatnawi
AIM: The aims of this study were to evaluate the effects of intramammary infusion of sage (Salvia officinalis) essential oil (EO) on milk somatic cell count (SCC), milk composition parameters and selected hematology and serum biochemical parameters in 20 Awassi ewes affected with subclinical mastitis. MATERIALS AND METHODS: The dried leaves of sage were used to extract the EO by hydrodistillation. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of sage EO against Staphylococcus aureus were determined by the broth dilution method...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28918633/axisymmetric-and-non-axisymmetric-oscillations-of-sessile-compound-droplets-in-open-digital-microfluidic-platform
#4
Shubhi Bansal, Prosenjit Sen
Manipulating droplets of biological fluids in Electrowetting on Dielectric (EWOD) based digital microfluidic platform is a significant challenge due to biofouling and surface contamination. This problem is often addressed by operating in an oil environment. We study an alternate configuration of sessile compound droplets having an aqueous core surrounded by a smaller oil shell. In contrast to conventional EWOD, open digital microfluidic platform enabled by the core-shell configuration will allow electrical, mechanical or optical probes to get unrestricted access to the droplet and thus enabling highly flexible and dynamically reconfigurable lab-on-chip systems...
September 18, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28917977/the-role-of-the-endocannabinoid-system-in-the-antihyperalgesic-effect-of-cedrus-atlantica-essential-oil-inhalation-in-a-mouse-model-of-postoperative-pain
#5
Aline Armiliato Emer, Nathalia Nahas Donatello, Ana Paula Batisti, Luiz Augusto de Oliveira Belmonte, Adair R S Santos, Daniel F Martins
ETHNOPHARMACOLOGICAL RELEVANCE: Cedar is part of the phylum of conifers, and it´s essential oil has been used for therapeutic purposes since ancient times. In our previous study, we have demonstrated that the inhalation of the Cedrus atlantica essential oil (CaEO) induces an antihyperalgesic effect in a model of postoperative pain. But the mechanism that underlies this effect is not yet fully known. AIM OF THE STUDY: This study investigates the involvement of the endocannabinoid system in the antihyperalgesic effect produced by the inhalation of CaEO in a post operative pain model...
September 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28917972/research-on-the-antioxidant-wound-healing-and-anti-inflammatory-activities-and-the-phytochemical-composition-of-maritime-pine-pinus-pinaster-ait
#6
İbrahim Tümen, Esra Küpeli Akkol, Hakkı Taştan, Ipek Süntar, Mehmet Kurtca
ETHNOPHARMACOLOGICAL RELEVANCE: Ethnobotanical investigations have shown that the Pinus species have been used against rheumatic pain and for wound healing in Turkish folk medicine. MATERIAL AND METHODS: In this study, phytochemical composition, antioxidant, anti-inflammatory, and wound healing activities of Maritime Pine (Pinus pinaster Ait.) that is collected in Turkey are investigated. Essential oil composition and the amount of extracts (lipophilic and hydrophilic) of maritime pine wood and fresh cone samples had been tested...
September 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28917968/the-effect-of-fennel-essential-oil-in-combination-with-antibiotics-on-staphylococcus-aureus-strains-isolated-from-carriers
#7
Paweł Kwiatkowski, Magdalena Mnichowska-Polanowska, Agata Pruss, Helena Masiuk, Małgorzata Dzięcioł, Stefania Giedrys-Kalemba, Monika Sienkiewicz
An increase in the number of staphylococcal infections and carriers among medical staff has forced us to seek more and more effective antibacterial agents. Bacteria from the Staphylococcus genus possessing different mechanisms of resistance are the cause of nosocomial infections. The objective of our investigations was susceptibility of S. aureus strains isolated from nasal vestibule of medical students to fennel essential oil. The GC-MS analysis of fennel essential oil revealed eleven constituents among which a majority of trans-anethole (80%) was found...
September 13, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28917862/antibacterial-hydroxypropyl-methyl-cellulose-edible-films-containing-nanoemulsions-of-thymus-daenensis-essential-oil-for-food-packaging
#8
Roya Moghimi, Atousa Aliahmadi, Hasan Rafati
Edible films containing essential oils (EO) as natural antibacterial agents are promising systems for food preservation. In this work, nanoemulsions of Thymus daenensis EO (wild; F1 and cultivated; F2) were loaded in hydroxyl propyl methyl cellulose (HPMC) films and the effect of different parameters (polymer, plasticizer, and EO concentration) on the film properties were analyzed and optimized. Prepared HPMC films were characterized in terms of EO loading, morphology, mechanical properties, and the antibacterial activity...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917370/aromatherapies-using-osmanthus-fragrans-oil-and-grapefruit-oil-are-effective-complementary-treatments-for-anxious-patients-undergoing-colonoscopy-a-randomized-controlled-study
#9
Hideaki Hozumi, Sho Hasegawa, Takazumi Tsunenari, Noriko Sanpei, Yuko Arashina, Kieko Takahashi, Ayako Konnno, Emi Chida, Souichi Tomimatsu
BACKGROUND AND AIMS: Colonoscopy can be painful and uncomfortable. Aromatherapy is often used for the relief of anxiety or discomfort. Recently, it has been reported that olfactory stimulation induces various physiological effects. We investigated the effects of aromatherapy on anxiety and abdominal discomfort during colonoscopy. METHODS: The investigation was carried out using a randomized controlled study. Aromatherapy was performed by vapor diffusion, and each patient was given one of the following treatments: no inhalation (control group), essential-oil-less vapor (vehicle group), lavender oil (lavender group), grapefruit oil (grapefruit group), or Osmanthus fragrans oil (Osmanthus fragrans group)...
October 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28916460/the-effect-of-viroid-infection-of-citrus-trees-on-the-amoebicidal-activity-of-maltese-half-blood-citrus-sinensis-against-trophozoite-stage-of-acanthamoeba-castellanii-neff
#10
Ghaya Zouaghi, Asma Najar, Olfa Chiboub, Ines Sifaoui, Manef Abderrabba, Jacob Lorenzo Morales
In order to promote a local Tunisian product, this study was designed to examine, for the first time, the anti-Acanthamoeba activity (Acanthamoeba castellanii Neff) of the essential oils of Tunisian Citrus sinensis peels (Maltese half-blood) and the effect of viroid plant infection on this activity. To do so, three samples of peels' essential oils were studied: from a healthy plant (Control), a plant inoculated with Citrus exocortis viroid (CEVd) and one inoculated with hot stunt cachexia viroid (HSVd). The samples were extracted by hydrodistillation from dried peels and characterized by GC-MS...
September 12, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28916455/essential-oil-composition-and-anti-acanthamoeba-studies-of-teucrium-ramosissimum
#11
Nessrine Ghazouani, Ines Sifaoui, Olfa Bachrouch, Manef Abderrabba, José E Pinero, Jacob Lorenzo-Morales
The aim of the present study was to evaluate the chemical composition of the essential oil obtained from the aerial parts of T. ramosissimum by hydrodistillation and to investigate their anti-Acanthamoeba activity. Identification and quantification were realized by gas chromatography-mass spectrometry (GC-MS) and gas chromatography with flame ionization detection by (GC-FID). Sixty-eight compounds representing 97.78% of the essential oil were identified, of which δ-cadinene (18.63%), δ-cadinol (18.70%), β-eudesmol (12...
September 12, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28916454/anti-acanthamoeba-activity-of-tunisian-thymus-capitatus-essential-oil-and-organic-extracts
#12
Salma Saoudi, Ines Sifaoui, Nadia Chammem, María Reyes-Batlle, Atteneri López-Arencibia, Idaira Pacheco-Fernández, Verónica Pino, Moktar Hamdi, Ignacio A Jiménez, Isabel L Bazzocchi, José E Piñero, Jacob Lorenzo-Morales
Acanthamoeba species are free-living amoebae widely distributed in the environment and which cause serious human infections. The treatment of Acanthamoeba infections is always very difficult and not constantly effective. More efficient drugs against Acanthamoeba must be developed and medicinal plants can be useful in this case. Our research focused on the examination of the anti-Acanthamoeba activity of the essential oil and the ethanolic-aqueous extract from Thymus capitatus L. The essential oil showed best activity with an IC50 of 2...
September 12, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28915875/plectranthus-amboinicus-essential-oil-and-carvacrol-bioactive-against-planktonic-and-biofilm-of-oxacillin-and-vancomycin-resistant-staphylococcus-aureus
#13
Sara Edwirgens Costa Benício Vasconcelos, Hider Machado Melo, Theodora Thays Arruda Cavalcante, Francisco Eduardo Aragão Catunda Júnior, Mário Geraldo de Carvalho, Francisca Gleire Rodrigues Menezes, Oscarina Viana de Sousa, Renata Albuquerque Costa
BACKGROUND: The emergence of multidrug-resistant bacteria is a worldwide concern and in order to find an alternative to this problem, the occurrence of antimicrobial compounds in Plectranthus amboinicus essential oil was investigated. Thus, this study aims to determine susceptibility of Staphylococcus aureus isolated from food to antibiotics, P. amboinicus essential oil (PAEO) and carvacrol. METHODS: Leaves and stem of P. amboinicus were used for extraction of essential oil (PAEO) by hydrodistillation technique and EO chemical analysis was performed by gas chromatography coupled to a mass spectrometer...
September 16, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28915354/rose-essential-oil-delayed-ad-like-symptoms-by-skn-1-pathway-in-c-elegans
#14
Shuqian Zhu, Hong-Yu Li, Juan Dong, Wenqi Yang, Ting Liu, Yu Wang, Xin Wang, Meizhu Wang, Dejuan Zhi
There are no effective medications for delaying the progress of Alzheimer's disease (AD), the most common neurodegenerative disease in the world. In this study, our results with C. elegans showed that rose essential oil (REO) significantly inhibited AD-like symptoms of worm paralysis and hypersensivity to exogenous 5-HT in a dose-dependent manner. Its main components of β-citronellol and geraniol acted less effectively than the oil itself. REO significantly suppressed Aβ deposits and reduced the Aβ oligomers to alleviate the toxicity induced by Aβ over-expression...
September 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28915339/a-vapor-phase-assay-for-evaluating-the-antimicrobial-activities-of-essential-oils-against-bovine-respiratory-bacterial-pathogens
#15
S Amat, D Baines, T W Alexander
The objectives of this study were to develop a new assay for the evaluation of the antimicrobial activities of essential oils (EOs) in vapor-phase and to demonstrate the antimicrobial activities of commercial EOs against BRPs. To achieve the first objective, a microtube cap containing 100 μl of EO was embedded in an agar plate. An agar plug (diameter 13 mm) inoculated with a bacterial suspension containing10(8) CFU ml(-1) was then placed over the cap and incubated at 37 °C for 24 h. Subsequently, bacteria were recovered from the agar plug by immersion in 5 ml of broth for 10 min, followed by vortexing for 30 s, and the broths were then plated for enumeration...
September 15, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28911683/antibacterial-activity-and-interactions-of-plant-essential-oil-combinations-against-gram-positive-and-gram-negative-bacteria
#16
Cristina Anamaria Semeniuc, Carmen Rodica Pop, Ancuţa Mihaela Rotar
The aim of this study was to compare the antibacterial effects of several essential oils (EOs) alone and in combination against different Gram-positive and Gram-negative bacteria associated with food products. Parsley, lovage, basil, and thyme EOs, as well as their mixtures (1:1, v/v), were tested against Bacillus cereus, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Salmonella typhimurium. The inhibitory effects ranged from strong (thyme EO against E. coli) to no inhibition (parsley EO against P...
April 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911682/relation-between-salt-tolerance-and-biochemical-changes-in-cumin-cuminum-cyminum%C3%A2-l-seeds
#17
Iness Bettaieb Rebey, Soumaya Bourgou, Fatma Zohra Rahali, Kamel Msaada, Riadh Ksouri, Brahim Marzouk
In this study, the effects of salinity on growth, fatty acid, essential oil, and phenolic composition of cumin (Cuminum cyminum L.) seeds as well as the antioxidant activities of their extracts were investigated. Plants were treated with different concentrations of NaCl treatment: 0, 50, 75, and 125 mmoL. Plant growth was significantly reduced with the severity of saline treatment. This also caused important reductions in the seed yield and yield components. Besides, NaCl treatments affected fatty acid composition...
April 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911674/phytochemical-composition-and-antibacterial-activity-of-the-essential-oils-from-different-parts-of%C3%A2-sea-buckthorn-hippophae-rhamnoides-l
#18
Xuan-Feng Yue, Xiao Shang, Zhi-Juan Zhang, Yan-Ni Zhang
Essential oils from the seed, pulp, and leaf of sea buckthorn were obtained with hydrodistillation, and their phytochemical composition was analyzed through gas chromatography-mass spectrometry. Furthermore, the antibacterial activity of the oils was tested on five food-borne bacteria by spectrometry and evaluated in terms of minimum inhibitory concentration. The results indicate that the composition of all essential oils is dominated by free fatty acids, esters, and alkanes. Minimum inhibitory concentration values on each bacterium were obtained for oils from different parts...
April 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28906143/composition-of-essential-oils-from-four-apiaceae-and-asteraceae-species-growing-in-uzbekistan
#19
Nilufar Z Mamadalieva, Nilufar S Abdullaeva, Thomas Rosenau, Mashkura Fakhrutdinova, Shakhnoz S Azimova, Stefan Böhmdorfer
The chemical composition of essential oils isolated from the aerial parts of Heracleum lehmannianum, Prangos pabularia, Pseudohandelia umbellifera and Pulicaria salviifolia, all of them growing in Uzbekistan, were determined by GC-MS analysis. The main components of the oil from H. lehmannianum were α-phellandrene (10.5%), 1-butanol (9.0%), δ-cadinene (6.2%), α-cadinol (5.7%), τ-muurolol (3.1%), 4-terpineol (2.4%) and α-muurolene (2.6%), while cis-allo-ocimene (17.6%), δ-3-carene (14.2%), limonene (7...
September 14, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28906110/anti-in%C3%AF-ammatory-effect-of-essential-oil-from-citrus-aurantium-l-var-amara-engl
#20
Chun-Yan Shen, Jian-Guo Jiang, Qin Ou-Yang, Wei Zhu
Essential oil has been popularly used as an alternative for the treatment of inflammation. The bioactivities of essential oil from blossoms of Citrus aurantium L. var. amara Engl (CAVAO) showed greater anti-inflammation potential than that of antioxidant, anticancer, and 3T3-L1 proliferation inhibition. CAVAO (250 μg/mL) significantly inhibited production of nitric oxide (NO) (99.54%±2.81), interleukin-6 (IL-6) (98.11%±1.62), tumor necrosis factor-alpha (TNF-α) (41.84%±1.52) and interleukin-1beta (IL-1β) (56...
September 14, 2017: Journal of Agricultural and Food Chemistry
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