keyword
MENU ▼
Read by QxMD icon Read
search

Antimicrobial effect plant extract

keyword
https://www.readbyqxmd.com/read/29452197/essential-oils-from-origanum-vulgare-and-salvia-officinalis-exhibit-antibacterial-and-anti-biofilm-activities-against-streptococcus-pyogenes
#1
Niluni M Wijesundara, H P Vasantha Rupasinghe
In the present study, essential oils (EOs) extracted from oregano, sage, cloves, and ginger were evaluated for the phytochemical profile, antibacterial, and anti-biofilm activities against Streptococcus pyogenes. The broth microdilution method was used to determine the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of EOs. The minimum biofilm inhibitory concentrations (MBICs) were determined using MTT assay and fixed biofilms were observed through scan electron microscopy...
February 13, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29443874/dental-application-of-natural-products
#2
REVIEW
Hiroshi Sakagami, Mineko Tomomura
This review article summarizes the recent progress in dental applications of natural products. Catechin gel showed selective antimicrobial activity, whereas the alkaline extract of various plant species rich in lignin carbohydrate complex (LCC) showed much higher antiviral activity than lower molecular weight polyphenols. Mouthwash with the alkaline extract of a plant classified as OTC effectively reduced halitosis. Unexpectedly, many polyphenolic compounds purified from the natural kingdom showed much lower tumor-specificity against human oral squamous cell lines as compared with antitumor agents, although they showed apoptosis-inducing activity...
February 14, 2018: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/29434776/phytochemical-screening-and-biological-activity-of-lamiaceae-family-plant-extracts
#3
Ileana Cocan, Ersilia Alexa, Corina Danciu, Isidora Radulov, Atena Galuscan, Diana Obistioiu, Attila Alexandru Morvay, Renata Maria Sumalan, Mariana-Atena Poiana, Georgeta Pop, Cristina Adriana Dehelean
The current study aimed to investigate ethanolic extracts from the following medicinal plant species cultivated in western Romania: Melissa officinalis L., Rosmarinus officinalis L. (RO) and Salvia officinalis L. (SO). Antioxidant activity, total phenolics content and a profile of the main hydroxycinnamic acids (HCAs), including caffeic, ferulic, coumaric and rosmarinic acids, was determined for each plant extract. The in vitro antimicrobial activity against four bacterial strains ( Escherichia coli , Listeria -, Pseudomonas aeruginosa and Staphylococcus aureus ), and the effect on cell viability in two melanoma cell lines (B164A5 murine melanoma and A375 human melanoma) was also assessed...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29433688/synergism-of-prenylflavonoids-from-morus-alba-root-bark-against-clinical-mrsa-isolates
#4
Guo-Ying Zuo, Cui-Xian Yang, Jun Han, Yu-Qing Li, Gen-Chun Wang
BACKGROUND: Clinical methicillin-resistant Staphylococcus aureus (MRSA) is a thorny problem in current anti-infective therapeutics and a challenge of new drug development. Plant prenylflavonoids possess anti-MRSA activity, but few of the prenylflavonoids have been reported the synergistic anti-MRSA effect when they are used in combination with conventional antibacterial agents. PURPOSE: This study deals with anti-MRSA activity of four prenylflavonoids from the root bark of Morus alba and their synergism with 11 conventional antibacterial agents...
January 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29433627/the-effects-of-different-nitrogen-doses-on-antioxidant-and-antimicrobial-activity-of-stevia-stevia-rebaudiana-bert
#5
Mehmet Atas, Nuraniye Eruygur, Esra Ucar, Yasar Ozyigit, Kenan Turgut
In this study, the efficiency of the different nitrogen doses (0, 5, 10, 15 and 20 kg ha-1) on biological activity levels (antioxidant and antimicrobial activity) of Stevia rebaudiana Bert. was investigated. In addition, methanol extracts were obtained by maceration method from different doses of fertilizer applied stevia. The components in methanol extracts of plants were determined by gas chromatography-mass spectrometry (GC-MS) method. Antimicrobial activities of stevia extracts were investigated by microdilution method...
February 10, 2018: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29422064/-antimicrobial-and-antiproliferative-activity-of-essential-oil-aqueous-and-ethanolic-extracts-of-ocimum-micranthum-willd-leaves
#6
Isabel O Caamal-Herrera, Leydi M Carrillo-Cocom, Diana Y Escalante-Réndiz, Diana Aráiz-Hernández, José A Azamar-Barrios
BACKGROUND: Ocimum micranthum Willd is a plant used in traditional medicine practiced in the region of the Yucatan peninsula. In particular, it is used for the treatment of cutaneous infections and wound healing, however there are currently no existing scientific studies that support these applications. The aim of the present study was to evaluate the antimicrobial and the in vitro proliferative activity (on healthy mammalian cell lines) of the essential oil and extracts (aqueous and ethanolic) of this plant...
February 8, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29410782/in-vitro-studies-of-the-antibacterial-activity-of-copaifera-spp-oleoresins-sodium-hypochlorite-and-peracetic-acid-against-clinical-and-environmental-isolates-recovered-from-a-hemodialysis-unit
#7
Rosimara Gonçalves Leite Vieira, Thaís da Silva Moraes, Larissa de Oliveira Silva, Thamires Chiquini Bianchi, Rodrigo Cassio Sola Veneziani, Sérgio Ricardo Ambrósio, Jairo Kenupp Bastos, Regina Helena Pires, Carlos Henrique Gomes Martins
Background: Patients submitted to hemodialysis therapy are more susceptible to infection, especially to infection by Gram-positive bacteria. Various research works have attempted to discover new antimicrobial agents from plant extracts and other natural products. Methods: The present study aimed to assess the antibacterial activities of Copaifera duckei, C. reticulata, and C. oblongifolia oleoresins; sodium hypochlorite; and peracetic acid against clinical and environmental isolates recovered from a Hemodialysis Unit...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29397088/management-of-acute-cough-by-zataria-multiflora-boiss-as-an-alternative-treatment
#8
REVIEW
Mohaddese Mahboubi
Cough, as a defensive reflux mechanism, removes foreign objects and secretions from bronchi and bronchioles of airways. Zataria multiflora is a popular plant for treatment of cough in Iranian traditional medicine. The aim of this review was to evaluate the potency of Z. multiflora as an alternative treatment in management of acute cough and its possible mechanisms of action. Here the authors compiled information about Z. multiflora in the treatment of cough from all accessible resources and books. The results of this investigation showed that there were five clinical studies that evaluated the efficacy of Z...
January 2018: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29390137/in-vitro-activity-of-antimicrobial-compounds-against-xylella-fastidiosa-the-causal-agent-of-the-olive-quick-decline-syndrome-in-apulia-italy
#9
Gianluca Bleve, Antonia Gallo, Claudio Altomare, Maurizio Vurro, Gabriele Maiorano, Angela Cardinali, Isabella D'Antuono, Guido Marchi, Giovanni Mita
Olive quick decline syndrome (OQDS) is causing severe damages to the olive trees in Salento (Apulia, Italy) and poses a severe threat for the agriculture of Mediterranean countries. DNA-Based Typing Methods have pointed out that OQDS is caused by a single outbreak strain of Xylella fastidiosa subsp. pauca referred to as CoDiRO or ST53. Since no effective control measures are currently available, the objective of this study was to evaluate in vitro antimicrobial activities of different classes of compounds against Salento-1 isolated by a OQDS affected plant and classified as ST53...
December 27, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29382347/plants-of-the-cerrado-with-antimicrobial-effects-against-staphylococcus-spp-and-escherichia-coli-from-cattle
#10
Izabella Carolina de O Ribeiro, Emanuelly Gomes A Mariano, Roberta T Careli, Franciellen Morais-Costa, Felipe M de Sant'Anna, Maximiliano S Pinto, Marcelo R de Souza, Eduardo R Duarte
BACKGROUND: Both diarrhea in calves and mastitis in cows limit cattle production. The bacteria involved in these diseases have shown multi-resistance to antimicrobials, however plant metabolites therefore can provide an alternative method of control. This study selected and characterized Cerrado plant extracts showing inhibitory effects against Escherichia coli and Staphylococcus spp. from cattle. Thirteen leaf extracts were initially screened and diameters of inhibition zones produced against the pathogens were recorded using an agar disk diffusion method...
January 30, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29382097/nigella-damascena-l-essential-oil-a-valuable-source-of-%C3%AE-elemene-for-antimicrobial-testing
#11
Elwira Sieniawska, Rafal Sawicki, Joanna Golus, Marta Swatko-Ossor, Grazyna Ginalska, Krystyna Skalicka-Wozniak
The most commonly used plant source of β-elemene is Curcuma wenyujin Y. H. Chen & C. Ling (syn. of Curcuma aromatic Salisb.) with its content in supercritical CO₂ extract up to 27.83%. However, the other rich source of this compound is Nigella damascena L. essential oil, in which β-elemene accounts for 47%. In this work, the effective protocol for preparative isolation of β-elemene from a new source-N. damascena essential oil-using high performance counter-current chromatography HPCCC was elaborated...
January 28, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29379354/potentiation-of-antibiotic-activity-by-passiflora-cincinnata-mast-front-of-strains-staphylococcus-aureus-and-escherichia-coli
#12
Ana Luiza A Siebra, Larissa R Oliveira, Anita O B P B Martins, David C Siebra, Rosimeire S Albuquerque, Izabel Cristina Santiago Lemos, Gyllyandeson A Delmondes, Saulo R Tintino, Fernando G Figueredo, Jose Galberto M da Costa, Henrique D M Coutinho, Irwin R A Menezes, Cicero F B Felipe, Marta R Kerntopf
The development of new drugs from plants is an interesting alternative approach to overcoming microbial resistance. Passiflora cincinnata shows resistance to diseases and pests and a higher concentration of chemical components that may be useful in the pharmaceutical industry. We investigated the potential antimicrobial and antibiotic-modifying activity of hydroalcoholic extracts of leaves, stems, bark, pulp and seeds of P. cincinnata. The extracts were prepared by homogenization of material in 50% ethanol...
January 2018: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29353723/bysspectin-a-an-unusual-octaketide-dimer-and-the-precursor-derivatives-from-the-endophytic-fungus-byssochlamys-spectabilis-imm0002-and-their-biological-activities
#13
Yu-Zhuo Wu, Hua-Wei Zhang, Zhao-Hui Sun, Jun-Gui Dai, You-Cai Hu, Rui Li, Peng-Cheng Lin, Gui-Yang Xia, Ling-Yan Wang, Bo-Lin Qiu, Jing-Fang Zhang, Guang-Bo Ge, Sheng Lin
Bysspectin A (1), a polyketide-derived octaketide dimer with a novel carbon skeleton, and two new precursor derivatives, bysspectins B and C (2 and 3), were obtained from an organic extract of the endophytic fungus Byssochlamys spectabilis that had been isolated from a leaf tissue of the traditional Chinese medicinal plant Edgeworthia chrysantha, together with a known octaketide, paecilocin A (4). Their structures were determined by HRMS, 1D and 2D NMR spectroscopic analysis. A plausible route for their biosynthetic pathway is proposed...
January 10, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29349932/isolation-and-characterization-of-lectin-with-antibacterial-antibiofilm-and-antiproliferative-activities-from-acinetobacter-baumannii-of-environmental-origin
#14
Abdullah A Alyousef, Abdulaziz Alqasim, Mustafa Sawsan Aloahd
AIMS: Lectin is a non-immunogenic glycoprotein, have been extracted majority from the plant source primarily leguminoasea. Its ability to precisely recognize and bind to the complex cell bound structure to enable it playing diverse roles. In this study, we obligate to define new sources of lectins since the production of lectins is very expensive. Therefore, we performed a study with the goal to isolate and characterize lectin from bacteria of plant origin and screen its ability as an antibacterial, antibiofilm and antiproliferative agent...
January 19, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29329806/effect-of-different-animal-fat-and-plant-oil-additives-on-physicochemical-mechanical-antimicrobial-and-antioxidant-properties-of-chitosan-films
#15
Lalehan Akyuz, Murat Kaya, Sedef Ilk, Yavuz Selim Cakmak, Asier M Salaberria, Jalel Labidi, Bahar Akyuz Yılmaz, Idris Sargin
Practical application of chitosan-essential oil blend films is limited due to the uneconomical extraction procedure of essential oils from plants. This study aimed to produce chitosan films blended with low cost and commercially available oils and fats consumed in daily human diet (olive, corn and sunflower oils, butter and animal fats). The study also focused on how physicochemical, biological and mechanical properties of chitosan blend films were influenced by the incorporation of oils and fats with varying unsaturation degrees...
January 9, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29322016/evaluation-of-in%C3%A2-vitro-and-in%C3%A2-vivo-antileishmanial-potential-of-bergenin-rich-bergenia-ligulata-wall-engl-root-extract-against-visceral-leishmaniasis-in-inbred-balb-c-mice-through-immunomodulation
#16
Rupinder Kaur, Sukhbir Kaur
Background: Medicinal plants with immunomodulatory properties can provide good alternative therapeutics for curing visceral leishmaniasis. Bergenia ligulata (Wall.) Engl. is an interesting plant with strong antioxidant, antimicrobial, immunomodulatory and hepatoprotective properties. Aim: The present study was planned to determine the antileishmanial activity of plant extract by modulating the immune responses of inbred BALB/c mice. Methodology: Bergenin, the principle active component of B...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29319517/characterisation-of-antimicrobial-properties-of-extracts-of-selected-medicinal-plants
#17
Monika Cioch, Paweł Satora, Magdalena Skotniczny, Dorota Semik-Szczurak, Tomasz Tarko
The scope of the experiments included analysis of the antimicrobial activity of ethanolic, methanolic and aqueous extracts against bacterial and fungal cultures and determination of the minimum inhibitory concentration of plant extracts tested microbial growth. Analysis of the antifungal and antibacterial activity was carried out by the disc diffusion method using paper discs. In the experiment 11 species of microorganisms - 8 bacterial and 3 fungal strains were used. The highest antimicrobial activity against the tested strains was demonstrated by black elder (Sambucus nigra L...
December 4, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29302624/chemical-composition-and-antifungal-effect-of-hydroalcoholic-extract-of-allium-tripedale-tvautv-against-candida-species
#18
M Shirani, A Samimi, H Kalantari, M Madani, A Kord Zanganeh
Background and Purpose: Treatment of life-threatening fungal infections caused by Candida species has become a major problem. Candida spp. are the most important causative agents of candidiasis. Allium tripedale is a medicinal plant that has been traditionally used to treat infections. In the present study, we aimed to determine the chemical compounds and antimicrobial activity of hydroalcoholic extract of A. tripedale against different species of Candida. Materials and Methods: Phytochemical analysis was performed to identify the possible bioactive components of this extract by using gas chromatography and mass spectroscopy (GC-MS)...
March 2017: Advances in Medical Mycology (Iran)
https://www.readbyqxmd.com/read/29301368/antimicrobial-activities-of-european-propolis-collected-from-various-geographic-origins-alone-and-in-combination-with-antibiotics
#19
Issam Al-Ani, Stefan Zimmermann, Jürgen Reichling, Michael Wink
Background: Propolis consists of a complex mixture of resinous substances collected by honeybees from different plant sources. The objective of this study was to investigate the chemical composition, biological activities, and synergistic properties with antibiotics of propolis samples collected from various geographic origins (Germany, Ireland, and Czech Republic). Methods: The chemical composition of the propolis was analyzed by Gas Liquid Chromatography-Mass Spectrometry (GLC-MS) and High-performance liquid chromatography (HPLC)...
January 3, 2018: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/29300393/-comparison-of-chemical-composition-of-selected-essential-oils-used-in-respiratory-diseases
#20
Małgorzata Kucharska, Jadwiga A Szymańska, Wiktor Wesołowski, Elżbieta Bruchajzer, Barbara Frydrych
BACKGROUND: Essential oils are fragrances extracted from plants. They have a smooth consistency and pleasant smell. Essential oils have been applied in aromatherapy, cosmetics, food and pharmaceutical products. The aim of the study was to analyze the composition of selected essential oils used in respiratory diseases. MATERIAL AND METHODS: The qualitative analysis was performed by gas chromatography with mass spectrometry. For the study 6 essential oils available in Polish shops and used in various respiratory diseases were chosen...
December 19, 2017: Medycyna Pracy
keyword
keyword
52863
1
2
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"