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https://www.readbyqxmd.com/read/29241769/antibacterial-activity-of-artemisia-asiatica-essential-oil-against-some-common-respiratory-infection-causing-bacterial-strains-and-its-mechanism-of-action-in-haemophilus-influenzae
#1
Chao Xu, Guo-Yan Li, Hua Zhang, Yu-Na Zu, Zhen-Hua Li, Jian-Li Chen
The main objective of the current study was to investigate the chemical composition of the essential oil of Artemisia asiatica together with investigating the antibacterial effects it exerts on several common respiratory infection causing bacteria including Haemophilus influenzae. Its mechanism of action was studied using various state-of-the-art assays like scanning electron microscopy, DNA, RNA and protein leakage assays, growth curve assays etc. The essential oil was extracted from the leaves of A. asiatica by supercritical CO2 fluid extraction technology...
December 11, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29241765/oliveria-decumbens-essential-oil-chemical-compositions-and-antimicrobial-activity-against-the-growth-of-some-clinical-and-standard-strains-causing-infection
#2
Behrooz Alizadeh Behbahani, Farideh Tabatabaei Yazdi, Alireza Vasiee, Seyed Ali Mortazavi
Oliveria decumbens as a valuable medicinal plant is extensively used in traditional medicine. clinical and standard strains causing infection resistance to antimicrobial agents, is one of the important problems in medicine. The aim of this study was to investigate the antibacterial activities and phytochemical analysis of Oliveria decumbens essential oil on the growth of some clinical and standard strains causing infection (Pseudomonas aerogenes, Escherichia coli, Streptococcus pyogenes and Staphylococcus epidermidis)...
December 11, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29241288/-aromatherapy-from-traditional-and-scientific-evidence-into-clinical-practice
#3
Wolfgang Steflitsch
Essential oils (EOs), also known as volatile oils, are concentrated natural plant products which contain volatile aroma compounds. Most EOs are derived by steam distillation, a tradition which can be traced back as many as 5000 years. They possess unique properties which result in various possibilities for application, also in modern medical contexts. Areas for medical aromatherapy include respiratory diseases, pain management or stress alleviation, amongst many others. Different modes of application exist: The rich ingredients can be absorbed by the body by anointment, gentle massage, inhalation, or oral intake of capsules...
December 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/29240662/essential-oils-from-neotropical-piper-species-and-their-biological-activities
#4
REVIEW
Joyce Kelly da Silva, Rafaela da Trindade, Nayara Sabrina Alves, Pablo Luís Figueiredo, José Guilherme S Maia, William N Setzer
The Piper genus is the most representative of the Piperaceae reaching around 2000 species distributed in the pantropical region. In the Neotropics, its species are represented by herbs, shrubs, and lianas, which are used in traditional medicine to prepare teas and infusions. Its essential oils (EOs) present high yield and are chemically constituted by complex mixtures or the predominance of main volatile constituents. The chemical composition of Piper EOs displays interspecific or intraspecific variations, according to the site of collection or seasonality...
December 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29238281/differential-inhibitory-activities-of-four-plant-essential-oils-on-in-vitro-growth-of-fusarium-oxysporum-f-sp-fragariae-causing-fusarium-wilt-in-strawberry-plants
#5
Jin Young Park, Su Hyeon Kim, Na Hee Kim, Sang Woo Lee, Yong-Chull Jeun, Jeum Kyu Hong
The objective of this study was to determine inhibitory activities of four volatile plant essential oils (cinnamon oil, fennel oil, origanum oil and thyme oil) on in vitro growth of Fusarium oxysporum f. sp. fragariae causing Fusarium wilt of strawberry plants. Results showed that these essential oils inhibited in vitro conidial germination and mycelial growth of F. oxysporum f. sp. fragariae in a dose-dependent manner. Cinnamon oil was found to be most effective one in suppressing conidial germination while fennel oil, origanum oil and thyme oil showed moderate inhibition of conidial germination at similar levels...
December 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/29237511/toxic-effects-of-two-essential-oils-and-their-constituents-on-the-mealworm-beetle-tenebrio-molitor
#6
L C Martínez, A Plata-Rueda, H C Colares, J M Campos, M H Dos Santos, F L Fernandes, J E Serrão, J C Zanuncio
The study identified insecticidal effects from the cinnamon and clove essential oils in Tenebrio molitor L. (Coleoptera: Tenebrionidae). The lethal concentrations (LC50 and LC90), lethal time, and repellent effect on larvae, pupae, and adults of T. molitor after exposure to six concentrations of each essential oil and toxic compounds were evaluated. The chemical composition of the cinnamon oil was also determined and primary compounds were eugenol (10.19%), trans-3-caren-2-ol (9.92%), benzyl benzoate (9.68%), caryophyllene (9...
December 14, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/29236852/antifungal-activities-of-the-essential-oil-and-its-fractions-rich-in-sesquiterpenes-from-leaves-of-casearia-sylvestris-sw
#7
Flaviane G Pereira, Ronaldo Marquete, Levy T Domingos, Marco E N Rocha, Antonio Ferreira-Pereira, Elisabeth Mansur, Davyson L Moreira
Casearia genus (Salicaceae) is found in sub-tropical and tropical regions of the world and comprises about 160-200 species. It is a medicinal plant used in South America, also known as "guaçatonga", "erva-de-tiú", "cafezinho-do-mato". In Brazil, there are about 48 species and 12 are registered in the State of Rio de Janeiro, including Casearia sylvestris Sw. There are many studies related to the chemical profile and cytotoxic activities of extracts from these plants, although few studies about the antifungal potential of the essential oil have been reported...
December 11, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29234424/anxiolytic-effect-of-citrus-aurantium-l-in-crack-users
#8
Gabriel Chaves Neto, João Euclides Fernandes Braga, Mateus Feitosa Alves, Liana Clébia de Morais Pordeus, Sócrates Golzio Dos Santos, Marcus Tullius Scotti, Reinaldo N Almeida, Margareth de Fátima Formiga Melo Diniz
The objective of this study was to investigate the anxiolytic effects of the essential oil (EO) of Citrus aurantium L. in patients experiencing crack withdrawal. This was developed with internal users in therapeutic communities in Paraíba, Brazil. The test population consisted of 51 volunteers, subdivided into three groups. To elicit anxiety, the Simulated Public Speaking (SPS) method was used. Physiological measures were assessed at specific phases during the experiment using appropriate equipment. Psychological measures of anxiety were assessed using the Trait-State Anxiety Inventory (IDATE) and the Analog Smoke Scale (HAS)...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234423/antifungal-activity-of-essential-oils-against-candida-albicans-strains-isolated-from-users-of-dental-prostheses
#9
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/29234408/does-the-fragrance-of-essential-oils-alleviate-the-fatigue-induced-by-exercise-a-biochemical-indicator-test-in-rats
#10
Zhiyue Li, Fengzhi Wu, Haozhen Shao, Yu Zhang, Angran Fan, Feng Li
Objective: To study the effect of the essential oils of Citrus sinensis L., Mentha piperita L., Syzygium aromaticum L., and Rosmarinus officinalis L. on physical exhaustion in rats. Methods: Forty-eight male Wistar rats were randomly divided into a control group, a fatigue group, an essential oil mixture (EOM) group, and a peppermint essential oil (PEO) group. Loaded swimming to exhaustion was used as the rat fatigue model. Two groups were nebulized with EOM and PEO after swimming, and the others were nebulized with distilled water...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234365/ethnopharmacological-uses-phytochemistry-and-pharmacological-properties-of-croton-macrostachyus-hochst-ex-delile-a-comprehensive-review
#11
REVIEW
Alfred Maroyi
Croton macrostachyus is widely used as herbal medicine by the indigenous people of tropical Africa. The potential of C. macrostachyus as herbal medicine, the phytochemistry, and pharmacological properties of its parts used as herbal medicines are reviewed. The extensive literature survey revealed that C. macrostachyus is traditionally used to treat or manage at least 81 human and animal diseases and ailments. The species is used as herbal medicine for diseases and ailments such as abdominal pains, cancer, gastrointestinal disorders, malaria, pneumonia, sexually transmitted infections, skin infections, typhoid, and wounds and as ethnoveterinary medicine...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234313/food-grade-pimenta-leaf-essential-oil-reduces-the-attachment-of-salmonella-enterica-heidelberg-2011-ground-turkey-outbreak-isolate-on-to-turkey-skin
#12
Divek V T Nair, Anup Kollanoor Johny
Salmonella attached to the poultry skin is a major source of carcass contamination during processing. Once attached to the poultry skin, it is difficult to detach and inactivate Salmonella by commonly used antimicrobial agents since the pathogen is entrapped deeply in the feather follicles and the crevices on the skin. Essential oils could be natural, safe, and effective alternatives to synthetic antimicrobial agents during commercial and organic processing setup. The present study evaluated the efficacy of pimenta (Pimenta officinalis Lindl...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29233689/in-vitro-toxicity-evaluation-of-estragole-containing-preparations-derived-from-foeniculum-vulgare-mill-fennel-on-hepg2-cells
#13
Sara Levorato, Luca Dominici, Cristina Fatigoni, Claudia Zadra, Rita Pagiotti, Massimo Moretti, Milena Villarini
Estragole, a common component of herbs and spices, is a wellknown genotoxic hepatocarcinogen in rodents, whereas its potential toxic effect in humans is still debated. In the European contest, one of the major sources of human exposure to this phytochemical is Foeniculum vulgare Mill. (fennel). Therefore, the aim of this study was to evaluate the in vitro toxicity of estragole in the context of two complex phytochemical mixtures derived from fennel: fennel seed powder (FSPw) and fennel seed essential oil (FSEO)...
December 9, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29232839/agarwood-essential-oil-displays-sedative-hypnotic-effects-through-the-gabaergic-system
#14
Shuai Wang, Canhong Wang, Deqian Peng, Xinmin Liu, Chongming Wu, Peng Guo, Jianhe Wei
Although agarwood has been used as a tranquilizer in Asian countries for hundreds of years, the underlying pharmacological basis is still unclear. This study investigated the sedative-hypnotic effect of agarwood essential oil (AEO) using locomotor activity and pentobarbital-induced sleeping assays in mice. Single (1-day) and multiple (7- and 14-days) administrations of 60 mg/kg AEO generated significant sedative effect on inhibiting locomotor activity and hypnotic effect on pentobarbital-induced sleeping in mice...
December 9, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29232831/analgesic-like-activity-of-essential-oil-constituents-an-update
#15
REVIEW
Rita de Cássia da Silveira E Sá, Tamires Cardoso Lima, Flávio Rogério da Nóbrega, Anna Emmanuela Medeiros de Brito, Damião Pergentino de Sousa
The constituents of essential oils are widely found in foods and aromatic plants giving characteristic odor and flavor. However, pharmacological studies evidence its therapeutic potential for the treatment of several diseases and promising use as compounds with analgesic-like action. Considering that pain affects a significant part of the world population and the need for the development of new analgesics, this review reports on the current studies of essential oils' chemical constituents with analgesic-like activity, including a description of their mechanisms of action and chemical aspects...
December 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29231854/nisin-in-combination-with-cinnamaldehyde-and-edta-to-control-growth-of-escherichia-coli-strains-of-swine-origin
#16
Des Field, Inès Baghou, Mary C Rea, Gillian E Gardiner, R Paul Ross, Colin Hill
Post-weaning diarrhoea (PWD) due to enterotoxigenic Escherichia coli (ETEC) is an economically important disease in pig production worldwide. Although antibiotics have contributed significantly to mitigate the economic losses caused by PWD, there is major concern over the increased incidence of antimicrobial resistance among bacteria isolated from pigs. Consequently, suitable alternatives that are safe and effective are urgently required. Many naturally occurring compounds, including the antimicrobial peptide nisin and a number of plant essential oils, have been widely studied and are reported to be effective as antimicrobial agents against pathogenic microorganisms...
December 12, 2017: Antibiotics
https://www.readbyqxmd.com/read/29231061/the-effect-of-aqueous-extract-of-rosa-damascena-on-formaldehyde-induced-toxicity-in-mice-testes
#17
Majid Askaripour, Azam Hasanpour, Foruzan Hosseini, Mojgan Moshrefi, Gholamreza Moshtaghi, Mohammad Hasannejad, Soodeh Rajabi, Seyed Noureddin Nematollahi-Mahani
CONTEXT: Rosa damascena L. (Rosaceae) (RD) essential oil and extracts are commonly used as a flavour in herbal medicine which increase libido. Previous studies have shown inhalation of RD flower's oil increases libido and causes protective effects in formaldehyde (FA)-induced testicular damage. OBJECTIVE: The protective effects of aqueous extract of RD on the male reproductive system of mice were examined following FA-induced damage. MATERIALS AND METHODS: Forty-eight adult NMRI male mice were randomly assigned to six groups (n = 8): control (normal saline, 10 mg/kg); RD40 (40 mg/kg, p...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29230418/an-overview-of-the-biological-effects-of-some-mediterranean-essential-oils-on-human-health
#18
REVIEW
Hazem S Elshafie, Ippolito Camele
Essential oils (EOs), extracted from aromatic plants, are interesting natural products and represent an important part of the traditional pharmacopeia. The use of some EOs as alternative antimicrobial and pharmaceutical agents has attracted considerable interest recently. Most of the EOs and their single constituents have been reported to inhibit several phytopathogens, human pathogens, and insects as well as their effective uses in food and pharmaceutical industries. The current review discussed the chemical composition and bioactivity of some important EOs extracted from some Mediterranean plants and their principal bioactive single constituents...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29230405/variability-of-chemical-compositions-and-antimicrobial-and-antioxidant-activities-of-ruta-chalepensis-leaf-essential-oils-from-three-palestinian-regions
#19
Nidal Jaradat, Lina Adwan, Shadi K'aibni, Abdel Naser Zaid, Munqez J Y Shtaya, Naser Shraim, Mohyeddin Assali
Introduction: Interest in essential oils was recently revived with their popularity increasing in medicine, pharmacy, and aromatherapy. This study was performed to identify the chemical compositions of the essential oil of Ruta chalepensis growing wildly in three regions in Palestine and to assess and compare their antimicrobial and antioxidant activities. Methods: Identification of the essential oil was performed by gas chromatography coupled with mass spectrometry (GC-MS)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29228785/an-overview-on-indications-and-chemical-composition-of-aromatic-waters-hydrosols-as-functional-beverages-in-persian-nutrition-culture-and-folk-medicine-for-hyperlipidemia-and-cardiovascular-conditions
#20
Azadeh Hamedi, Seyed Mahmoud Moheimani, Amirhossein Sakhteman, Hamed Etemadfard, Mahmoodreza Moein
Hydrosol beverages in Persian nutrition culture and ethnomedicine are the side products of essential oil industry that are used as delicious drinks or safe remedies. To investigate indications and chemical composition of hydrosol beverages for hyperlipidemia and cardiovascular conditions, Fars province was selected as the field of study. Ethnomedical data were gathered by questionnaires. The constituents of hydrosols were extracted with liquid/liquid extraction and analyzed by gas chromatography-mass spectrometry...
January 1, 2017: Journal of Evidence-based Complementary & Alternative Medicine
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