384 results on '"Laurus"'
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2. Two invasive bark beetles Phloeosinus armatus Reitter and Xylosandrus compactus (Eichhoff) (Coleoptera, Curculionidae: Scolytinae) newly recorded in Russia.
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Karpun, Natalia N., Petrov, Alexander V., Zhuravleva, Elena N., Shoshina, Elena I., Kirichenko, Natalia I., Mandelshtam, Mikhail Yu., and Musolin, Dmitrii L.
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BARK beetles , *ORNAMENTAL plants , *INTRODUCED insects , *INTRODUCED species , *AMBROSIA beetles - Abstract
In 2023, two bark beetle species were recorded in Russia for the first time based on findings in Sochi: the cypress bark beetle, Phloeosinus armatus, on Mediterranean cypress (Cupressus sempervirens) and the black twig borer, Xylosandrus compactus, on southern magnolia (Magnolia grandiflora), noble laurel (Laurus nobilis), and cherry laurel (Prunus laurocerasus). P. armatus is a Mediterranean pest attacking exclusively Cupressaceae. In Sochi, it was recorded on cypress trees in several locations, including on plants for planting imported from Italy. X. compactus is a highly polyphagous pest from East Asia. In Sochi, it has established populations in ornamental planted areas. The paper provides species descriptions with identification keys. One specimen of X. compactus from Sochi was DNA‐barcoded and compared with 31 specimens deposited in the BOLD and GenBank under the name of X. compactus. High genetic variability (>7%) was detected highlighting the difficulty of identifying 'true' X. compactus using DNA data. Genetically, the specimen of X. compactus from Sochi was identical to those from Italy, Spain and France. An accidental introduction with ornamental plants for planting from Italy is considered the most probable pathway of invasion of both bark beetle species into the Russian Black Sea coast of the Caucasus. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Traditional and New Female Characters in E. G. Vodolazkin’s Novels
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O. S. Korkina and M. S. Savelyeva
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eugene vodolazkin ,female characters ,cyclic time ,laurus ,the aviator ,middle ages ,ambivalence ,feminism ,Philosophy. Psychology. Religion - Abstract
The study aims to provide a philosophical and cultural analysis of the problem of the ambivalence of female images in Eugene Vodolazkin's works by means of the concept of time-spiral as developed by the writer (this concept has been proposed and substantiated in his programme novel Laurus). The relevance of referring to this topic comes from the opportunities that such an examination provides for understanding the dynamics of the value bases of contemporary Russian culture. The research materials include E. G. Vodolazkin's fiction prose (novels) and his interviews (in particular, the interview with the writer conducted by one of the authors of the article — O. S. Korkina). The study uses a comprehensive culturological approach combining phenomenological, hermeneutic, and biographical methods. It is concluded and proved that the ambivalence of female images manifests itself at different levels of Vodolazkin's works. This ambivalence is observed by an open opposition of several female types through the prism of their evaluation by the narrator. Women in Vodolazkin’s prose bring the protagonist closer to Eternity, some of them stand by him, tempt him, or leave him. There are those who can give life and those who cannot. The axiological vector of Vodolazkin's prose consists of the opposition between traditional and modern values, embodying active and passive female characters. Meanwhile, the actual reading of the medieval passive type contrasts with the antagonistic image — a contemporary, psychologically and narratively active woman, whose personality has been influenced by feministic ideas and whose character, in a complex way, resonates with the traditional reading of femininity, as if building on it. Thus, the female images exemplify the paradoxical unity of a multifaceted human nature and show how its cultural existence unfolds cyclically in time through the acceptance and repulsion of Vodolazkin's basic values.
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- 2023
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4. Representation of National and Cultural Identity in Hungarian Translation of E. Vodolazkin’s Novel 'Laurus'
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M. A. Lappo and I. Pozsgai
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ethnocultural identity ,self-identification ,translation ,archaization ,laurus ,lajos palfalvi ,Slavic languages. Baltic languages. Albanian languages ,PG1-9665 - Abstract
The problem of translation of a literary text is considered, in which the interpretation of the national-cultural self-identification of the characters and the narrator is a significant tool for identifying its semantic dominant. For the first time, the issue of translation strategies in relation to the actualization of “one’s own and someone else’s” is studied on the material of the Hungarian translation of Evgeny Vodolazkin’s novel “Laurus”. The object of the study is archaic or non-archaic fragments of the Old Russian text in the speech of the heroes of the novel, as well as translations of personal names and toponyms. It is established that Lajos Palfalvi uses the translation strategy of domestication. The language means of archaization used in the translation text are described. It is proved that the leading means of archaization in translation is the use of the ancient Hungarian narrative past, other means of archaization are obsolete forms, words and syntactic constructions, rare words and words belonging to a high, literary or folk style. The adequacy of the translation strategy is demonstrated: these linguistic means refer the Hungarian reader to the Middle Ages, which corresponds to the author's intention. At the same time, it is noted that the specific linguocultural continuity of the Eastern Slavs (inhabitants of Ancient Russia) and Russians (native speakers of the modern Russian language) is only partially updated in the translation of the novel.
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- 2022
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5. Global distribution of the chemical constituents and antibacterial activity of essential oils in Lauraceae family: A review.
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Farias, Katyuce S., Alves, Flavio M., Santos-Zanuncio, Vanessa S., de Sousa Jr, Paulo T., Silva, Denise B., and Carollo, Carlos A.
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ESSENTIAL oils , *LAURACEAE , *ANTIBACTERIAL agents , *AVOCADO , *BENZYL compounds ,GONDWANA (Continent) - Abstract
• Lauraceae species produce important essential oils (EOs);. • EOs showed major compounds with commercial interest;. • EOs showed excellent results as antimicrobials;. • EOs compounds data suggests the chemical evolution of Lauraceae species. The Lauraceae family has a pantropical distribution, and plants in this family produce essential oils (EOs) of economic and medicinal interest. The chemical and antibacterial activities of the EOs of Lauraceae plants reported in the ten years are reviewed (2007-2017). A total of 191 studies were found, and the most cited genera being Cinnamomum, Ocotea, Laurus, Litsea and Persea. A more significant number of oxygenated compounds with higher hydrogen deficiency indices values (HDI) were found in species from the Asian continent, and hydrocarbons with lower HDI were more abundant in plants from the American continent. Notably, the differentiation of these two groups is consistent with the geographic isolation of America and Asia since the Gondwana and Laurasia supercontinents. Our survey of the available data showed that the major compounds were present at concentrations above 80%, and these compounds included benzyl benzoate (87.8%), methyl (E) -cinnamaldehyde (91.5%) and methyl (E) -cinnamate (95.2%). Of the 160 studies related to antibacterial activities, the most investigated microorganisms were Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Bacillus cereus and Salmonella enterica , and the MIC values ranged from 0.2 to 1000 µg/mL. This narrative review provides an overview of chemical and antibacterial studies on of the EOs of the Lauraceae plant family, highlighting the great biotechnological potential of this family and suggesting that the biogeographic separation of species on the American and Asian continents, which occurred thousands of years ago, could have affected oxygenation patterns and HDIs of the compounds in the EOs of the Lauraceae species. [ABSTRACT FROM AUTHOR]
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- 2023
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6. Effects of Laurus Nobilis Eye Drop on Selenite-Induced Cataract Formation and Oxidative Stress-Related Parameters in Rabbits: An Experimental Study.
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Palazzo M, Concilio M, Ambrosone L, Rinaldi M, Tranfa F, and Costagliola C
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- Animals, Rabbits, Male, Laurus, Antioxidants, Ascorbic Acid, alpha-Tocopherol, Hydrogen Peroxide, Plant Extracts pharmacology, Oxidative Stress drug effects, Cataract chemically induced, Cataract metabolism, Ophthalmic Solutions, Sodium Selenite toxicity, Lens, Crystalline metabolism, Lens, Crystalline drug effects, Disease Models, Animal, Malondialdehyde metabolism
- Abstract
Purpose: To evaluate the protective role of Laurus Nobilis eye drops on selenite-induced cataracts in suckling rabbits., Methods: Fifteen male albino suckling rabbits with no signs of ocular inflammation were randomly assigned to three groups: controls (Group A), sodium-selenite group (Group B) and sodium-selenite plus Laurus Nobilis group (Group C). By selenite treatment, cataract formation was experimentally induced and then graded. The grade of oxidative stress was defined in the lens, measuring the concentration of malondialdehyde, alpha-tocopherol, oxidized glutathione, ascorbic acid and hydrogen peroxide, and in blood samples as levels of alpha-tocopherol and malondialdehyde., Results: Mean lens concentrations of GSSG, H2O2, and MDA levels in group B were significantly higher than in both group C and control. Ascorbic acid and alpha-tocopherol concentrations were lower in group B than in both group C and A. As plasma oxidative status markers, the level of MDA was higher in group B respected group C and A. The mean alpha-tocopherol levels in group B were significantly lower than in both group A and group C., Conclusions: In animals treated with Laurus Nobilis -based eye drops, inflammation was inhibited, and lipid peroxidation was significantly reduced. Laurus nobilis leaves extract represents a good source of antioxidant components that may contrast sodium selenite-induced cataractogenesis in suckling rabbits.
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- 2024
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7. Antibacterial activity of essential oils extracted from the unique Chinese spices cassia bark, bay fruits and cloves.
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Jiang, Chunling, Hong, Jiaju, Meng, Jing, Ou, Jie, Xie, Qingchao, Pan, Yingjie, Zhao, Yong, and Liu, Haiquan
- Abstract
Spices are widely used in daily life such as diet and have certain activity. Especially in China, spices have been mainly used as condiments for thousands of years in order to improve the sensory quality of food; in addition, they and their derivatives can also be used as preservatives. In this study, three spices with unique Chinese characteristics widely used were selected: cassia bark (bark of Cinnamomum camphora Presl), bay fruits (Laurus nobilis), and cloves (Syzygiumaromaticum). The main components and antibacterial ability of these three spices were analyzed by simulated extraction method. Through headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC–MS) analysis, it was determined that the main active compounds in the essential oils of cassia bark, bay fruits and cloves were cinnamaldehyde (78.11%), cinnamaldehyde (61.78%) and eugenol (75.23%), respectively. The agar plate diffusion test and the simulated food culture medium experiment confirmed that the essential oils extracted from the three flavors have antibacterial effects on Listeria monocytogenes, Listeria innocua, Listeria welshimeri, Listeria ivanovii, Listeria grayi and Vibrio parahaemolyticus. The antibacterial activity of different strains has different optimal extraction conditions. Generally speaking, cinnamon essential oil has the strongest antibacterial activity, while laurel fruit has the lowest antibacterial activity. The study proved the antibacterial activity of these three Chinese-specific spices and provided some new ideas and methods for the subsequent research and preparation of natural food additives and food antibacterial agents. [ABSTRACT FROM AUTHOR]
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- 2022
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8. КАК СДЕЛАН «ЛАВР» Е. ВОДОЛАЗКИНА.
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КУПКА, Валерий
- Abstract
In this paper an attempt has been made to define the basic principles of the composition of E. Vodolazkin's novel Laurus and their role in creating an atmosphere of timelessness and ahistoricism in the novel. The possible influence of ancient Russian hagiographic icons on the nature of the composition is also investigated. [ABSTRACT FROM AUTHOR]
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- 2021
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9. Adsorptive removal of hazardous dye (crystal violet) using bay leaves (Laurus nobilis L.): surface characterization, batch adsorption studies, and statistical analysis
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Birol Isik, Selen Avci, Fatih Cakar, and Ozlem Cankurtaran
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Kinetics ,Health, Toxicology and Mutagenesis ,Thermodynamics ,Environmental Chemistry ,Gentian Violet ,Adsorption ,General Medicine ,Hydrogen-Ion Concentration ,Laurus ,Pollution ,Water Pollutants, Chemical - Abstract
In this study, the surface properties of Laurus nobilis L. were determined by inverse gas chromatography. From this, the surface of Laurus nobilis L. was found to be an acidic ([Formula: see text]). Then, the adsorption of hazardous crystal violet dye on Laurus nobilis L. was examined. For the adsorption process, the optimum conditions were determined as contact time (60 min), adsorbent dosage (1.0 g/L), agitation rate (200 rpm), and initial pH (≅ 7). The efficiencies of initial concentration, contact time, temperature, and their binary combinations on the improvement of adsorption percentage were statistically investigated via three different two-way ANOVA analyses. Adsorption data were applied to different isotherms, and it was determined that the Langmuir isotherm (r
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- 2022
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10. From ‘Fowle Originall’ to ‘Printed for the Author’: The Autograph Score of William Croft’s ‘Laurus cruentas’
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Alan Howard
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biology ,business.industry ,media_common.quotation_subject ,Art history ,Laurus ,Autograph ,Art ,biology.organism_classification ,business ,media_common - Published
- 2022
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11. Pollen analysis and tephrochronology of a MIS 13 lacustrine succession from Eastern Sabatini Volcanic District (Rignano Flaminio, central Italy).
- Author
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Di Rita, Federico and Sottili, Gianluca
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PINACEAE , *FIR - Abstract
Abstract Diatomite deposits in the Sabatini Volcanic District (central Italy) represent valuable archives to investigate both Middle Pleistocene vegetation dynamics and geochemistry of proximal products of volcanic eruptions, which provide crucial geochronological markers for a large region of Southern Europe. We present a new pollen record from a diatomite deposit at Rignano Flaminio, attributed to MIS 13 based on two major eruptive events from Monti Sabatini: the Grottarossa Pyroclastic Sequence (513 ± 3 ka) and the Fall A unit (499 ± 3 ka). We also add insights into the geochemical and mineralogical composition of the proximal deposits of the Fall A tephra, whose products are found in several sites of the central Mediterranean. Our pollen record shows marked vegetation turnovers, reflecting changes in regional and global climate conditions, local environmental factors and ecological processes within refuge areas. The lower part of the record points to a forested environment dominated by both deciduous and evergreen broadleaved taxa, indicating wet and temperate climate conditions. This interval was punctuated by two phases of slight forest declines, where a general increase in Poaceae and Artemisia , coupled with the development of Ericaceae and evergreen Quercus communities, suggests the establishment of mediterranean-type climatic conditions with increased aridity. The upper part of the sequence shows the development of Abies and Pinus woodlands, reflecting a change towards cooler and possibly wetter climate. The pollen richness, accompanied by a fossil leaf of Laurus , confirms the role of the Sabatini Volcanic District as a Pleistocene biodiversity hot-spot and refuge area for many trees. Highlights • A new pollen record from a MIS 13 deposit in central Italy is presented. • Tephras from Monti Sabatini provide a robust and reliable chronological setting. • A 499 ± 3 ka tephra correlates to distal equivalents in central Mediterranean records. • Vegetation changes respond to both global climate and local environmental processes. • The Sabatini Volcanic District was a Pleistocene biodiversity hot-spot. [ABSTRACT FROM AUTHOR]
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- 2019
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12. In vitro Anti-Leishmanial Activity of Essential Oils Extracted from Plants Growing in Northern Cyprus Against Leishmania tropica
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Ilker Etikan, K. Hüsnü Can Başer, Emrah Guler, Ahmet Özbilgin, İbrahim Çavuş, Tamer Sanlidag, and Buket Baddal
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Leishmania tropica ,Traditional medicine ,biology ,Serial dilution ,Chemistry ,General Medicine ,Origanum ,biology.organism_classification ,Leishmania ,In vitro ,law.invention ,Salvia fruticosa ,law ,Laurus ,Essential oil - Abstract
Objective Natural plant products are considered as a source of novel and effective compounds for the treatment of leishmaniasis. In this study, the in vitro activities of essential oils obtained from Origanum dubium (OD), Origanum majorana (OM), Salvia fruticosa (SF) and Laurus nobilis (LN) plants in Northern Cyprus were investigated against Leishmania tropica. Methods Leishmania tropica strain (MHOM/TR/2012/CBCL-LT) was obtained. RPMI-1640 was added to 96-well plates in 100 μL aliquots, 100 μg/mL essential oil was added to the first well of each row and serial 2-fold dilutions were performed. A promastigote suspension was pipetted into all wells, and the plates were incubated. The promastigotes were enumerated using a haemocytometer. Results OD essential oil was effective at killing all promastigotes at a minimum inhibitor height (MIC)=0.2 μg/mL and had high activity at the lowest concentrations. Both SF and LN oils had MIC=1.56 μg/mL and LD50=0.78 μg/mL. SF was observed to impair promastigote morphology at the lowest concentrations, while LN did not exert any effect at concentrations
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- 2021
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13. Pressurized Liquid Extraction as a Novel Technique for the Isolation of
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Erika, Dobroslavić, Ivona, Elez Garofulić, Jelena, Šeparović, Zoran, Zorić, Sandra, Pedisić, and Verica, Dragović-Uzelac
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Plant Extracts ,Tandem Mass Spectrometry ,Polyphenols ,Laurus ,Antioxidants ,Chromatography, High Pressure Liquid ,Chromatography, Liquid - Published
- 2022
14. Phytochemical profile and anthelmintic effects of Laurus nobilis essential oil against the ovine nematode Haemonchus contortus and the murine helminth model Heligmosomoides polygyrus
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Essia Sebai, Amel Abidi, Hayet Benyedem, Mokhtar Dhibi, Ines Hammemi, and Hafidh Akkari
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Anthelmintics ,Nematospiroides dubius ,Sheep ,General Veterinary ,Plant Extracts ,Phytochemicals ,General Medicine ,Laurus ,Rodent Diseases ,Mice ,Oils, Volatile ,Animals ,Parasitology ,Haemonchus ,Haemonchiasis ,Sheep, Domestic - Abstract
Small ruminant production in tropical and temperate countries faced substantial anthelmintic resistance due to the intensive use of commercial anthelmintic drugs. Therefore, alternative treatments including natural bioactive compounds with anthelmintic potential have been investigated looking for its successfully use in the parasite control. In the present study, we describe the chemical profile of Laurus nobilis essential oil (EO), the in vitro anthelmintic activity of L. nobilis EO against Haemonchus contortus and its in vivo anthelmintic effect against the murine helminth parasite model Heligmosomoides polygyrus. Chromatographic profile of L. nobilis (EO) extracted from the leaves of L. nobilis have shown the presence of monterpens 1,8-cineol (Eucalyptol) (29.47%), D-Limonène (18.51%) and Linalool (10.84%) in high fractions. The in vitro anthelmintic potential was expressed by an ovicidal effect against H. contortus egg hatching with inhibition value of 1.72 mg/mL and 87.5% of immobility of adult worms after 8 h of exposure to 4 mg/mL of L. nobilis EO. Regarding, the in vivo anthelmintic potential, L. nobilis (EO) at 2400 mg/kg bw completely eliminated the egg output of H. polygyrus after 7 days of oral treatment, together with a 79.2% of reduction in total worm counts. Based on the obtained results, L. nobilis EO showed promising in vitro and in vivo anthelmintic capacities against gastrointestinal parasites.
- Published
- 2022
15. Structural interactions of phytoconstituent(s) from cinnamon, bay leaf, oregano, and parsley with <scp>SARS‐CoV</scp> ‐2 nucleocapsid protein: A comparative assessment for development of potential antiviral nutraceuticals
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Ishrat Husain, Rumana Ahmad, Sahabjada Siddiqui, Anu Chandra, Aparna Misra, Aditi Srivastava, Tanveer Ahamad, Mohd. Faheem Khan, Zeba Siddiqi, Anchal Trivedi, Shivbrat Upadhyay, Anamika Gupta, Anand N. Srivastava, Bilal Ahmad, Sudhir Mehrotra, Surya Kant, Abbas Ali Mahdi, and Farzana Mahdi
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Pharmacology ,Cinnamomum zeylanicum ,SARS-CoV-2 ,Biophysics ,Cell Biology ,Laurus ,Ligands ,Antiviral Agents ,Catechin ,COVID-19 Drug Treatment ,Cinnamates ,Origanum ,Dietary Supplements ,Petroselinum ,Apigenin ,Food Science - Abstract
SARS-CoV-2 has been responsible for causing 6,218,308 deaths globally till date and has garnered worldwide attention. The lack of effective preventive and therapeutic drugs against SARS-CoV-2 has further worsened the scenario and has bolstered research in the area. The N-terminal and C-terminal RNA binding domains (NTD and CTD) of SARS-CoV-2 nucleocapsid protein represent attractive therapeutic drug targets. Naturally occurring compounds are an excellent source of novel drug candidates due to their structural diversity and safety. Ten major bioactive compounds were identified in ethanolic extract (s) of Cinnamomum zeylanicum, Cinnamomum tamala, Origanum vulgare, and Petroselinum crispum using HPLC and their cytotoxic potential was determined against cancer and normal cell lines by MTT assay to ascertain their biological activity in vitro. To evaluate their antiviral potential, the binding efficacy to NTD and CTD of SARS-CoV-2 nucleocapsid protein was determined using in silico biology tools. In silico assessment of the phytocomponents revealed that most of the phytoconstituents displayed a druglike character with no predicted toxicity. Binding affinities were in the order apigenin catechin apiin toward SARS-CoV-2 nucleocapsid NTD. Toward nucleocapsid CTD, the affinity decreased as apigenin cinnamic acid catechin. Remdesivir displayed lesser affinity with NTD and CTD of SARS-CoV-2 nucleocapsid proteins than any of the studied phytoconstituents. Molecular dynamics (MD) simulation results revealed that throughout the 100 ns simulation, SARS-CoV-2 nucleocapsid protein NTD-apigenin complex displayed greater stability than SARS-CoV-2 nucleocapsid protein NTD-cinnamic acid complex. Hence, apigenin, catechin, apiin and cinnamic acid might prove as effective prophylactic and therapeutic candidates against SARS-CoV-2, if examined further in vitro and in vivo. PRACTICAL APPLICATIONS: Ten major bioactive compounds were identified in the extract(s) of four medicinally important plants viz. Cinnamomum zeylanicum, Cinnamomum tamala, Origanum vulgare and Petroselinum crispum using HPLC and their biological activity was also evaluated against cancer and normal cell lines. Interestingly, while all extract(s) wielded significant cytotoxicity against cancer cells, no significant toxicity was found against normal cells. The outcome of the results prompted evaluation of the antiviral potential of the ten bioactive compounds using in silico biology tools. The present study emphasizes on the application of computational approaches to understand the binding interaction and efficacy of the ten bioactive compounds from the above plants with SARS-CoV-2 nucleocapsid protein N-terminal and C-terminal RNA binding domains in preventing and/or treating COVID-19 using in silico tools. Druglikeness and toxicity profiles of the compounds were carried out to check the therapeutic application of the components. Additionally, molecular dynamics (MD) simulation was performed to check the stability of ligand-protein complexes. The results provided useful insights into the structural binding interaction(s) that can be exploited for the further development of potential antiviral agents targeting SARS-CoV-2 especially since no specific therapy is still available to combat the rapidly evolving virus and the existing treatment is more or less symptomatic which makes search for novel antiviral agents all the more necessary and crucial.
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- 2022
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16. GENRE VARIETIES OF NARRATIVE STRATEGIES: NOVEL «LAURUS» BY E. VODOLAZKIN
- Author
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Egor A. Neverov
- Subjects
Literature ,History ,biology ,business.industry ,Laurus ,Narrative ,biology.organism_classification ,business - Published
- 2021
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17. THE HISTORICAL AND THE 'NON-HISTORICAL' IN THE NOVEL 'LAURUS' BY E. VODOLAZKIN
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Valery Aleksandrovich Sonkin and Nina Vladimirovna Kalinina
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Geography ,biology ,Forestry ,Laurus ,biology.organism_classification - Published
- 2021
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18. THE MYTHOPOETIC PICTURE OF THE WORLD IN THE NOVEL BY E. VODOLAZKIN «LAURUS»
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biology ,media_common.quotation_subject ,space ,General Medicine ,Art ,myth ,biology.organism_classification ,lcsh:Philology. Linguistics ,lcsh:P1-1091 ,path motive ,Laurus ,initiation rite ,dream motive ,Humanities ,time ,media_common - Abstract
Aim. The purpose of this article is to study the mythopoetic picture of the world of the novel E. Vodolazkin "Laurus". Methodology. The article analyzes the plot scheme of the initiation rite, the organization of the mythopoetic chronotope, the mythologeme of death/resurrection, the motif of sleep and vision. The text is analyzed using structural-semiotic and historical-literary methods, as well as the method of motivic analysis. Results. The research results allowed us to draw a conclusion about the role of mythological images, plots, and motives included in the artistic structure of the novel. Research implications. The theoretical significance of the study is to expand the understanding of the work of E. Vodolazkin, identifying the mythological components that structure the writer's artistic world. The practical significance of the research is that the materials and conclusions of this research work can be used in the development of General courses on the history of modern Russian literature, as well as in the process of preparing and reading special courses devoted to the study of the work of E. Vodolazkin.
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- 2021
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19. A Hagiographic Hero in a Novelistic Narrative: Laurus by Eugene Vodolazkin (Part Two)
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Aleksandr A. Shaikin
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Literature ,biology ,business.industry ,media_common.quotation_subject ,HERO ,Laurus ,Narrative ,Art ,business ,biology.organism_classification ,media_common - Abstract
As genres, hagiography and the novel are close in their intention to show the path of a personality and to depict the whole life of a hero. However, the value orientations of a novelistic hero and a hagiographic hero are opposite: from the very beginning, the latter denies what the former is striving for — the success in worldly life. From his very birth, the main hero of E. G. Vodolazkin’s novel Laurus has the inclinations of a hagiographic hero, but at the beginning of his independent life, he behaves not in a hagiographic, but in a novelistic way, which leads him to tragedy: his beloved woman dies without the repentance and ritual that are important in terms of hagiography. The article examines how the hero, trying to save the soul of his beloved woman, turns his life into a constant feat of serving people. On this path he reconsiders the meaning of life’s goals on a general and individual level, the categories of time and how time is filled with events, and the horizontal (“worldly life”) and vertical (“a life leading to Heaven”) paths. The hero goes through four distinct periods in his life and, accordingly, changes his name four times, but a certain monad of his personality remains unchanged. Growing in holiness, the hero saves the life of a young woman — he assists her when she delivers her baby — and that compensates for the loss of his beloved one and their unborn son. Since after the hero's death his unburied body does not decay and eventually disappears, it can be assumed that the hero achieves the goal of his life — the salvation of his beloved woman's soul, as well as his own. The method of analytical reading allows us to trace how in his narration the author overcomes the antinomy of the novelistic and hagiographic principles, and how these principles influence each other and grow into each other.
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- 2021
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20. Laurus nobilisL., comparative chemical composition and antimicrobial activity of essential oils from fresh leaves, flowers and fruits
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N. Arnold-Apostolides and H. Nasser
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Horticulture ,biology ,Chemistry ,Laurus ,Antimicrobial ,biology.organism_classification ,Chemical composition - Published
- 2020
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21. The effect of bay leaf extract (Syzygium polyanthum) on vascular endothelial growth factor (VEGF) and CD31 (PECAM-1) expression in acute coronary syndrome
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Refli, Hasan, Gontar Alamsyah, Siregar, and Dharma, Lindarto
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Vascular Endothelial Growth Factor A ,Plant Extracts ,Vascular Endothelial Growth Factors ,Syzygium ,lcsh:R ,lcsh:Medicine ,ischemia ,Laurus ,Rats ,Platelet Endothelial Cell Adhesion Molecule-1 ,flavonoids ,herbal medicine ,Animals ,Humans ,Acute Coronary Syndrome ,Rats, Wistar - Abstract
Aim To investigate effect of bay leaf extract in endothelial integrity, observed by vascular endothelial growth factor (VEGF) level, VEGF and CD31 expression. Methods Thirty-two acute coronary syndrome surgery-induced Wistar Rats (Rattus novergicus) were divided into 16 bay leaf extract (treatment) groups and 16 control groups, sacrificed on day 1, 4, 7, and 14 after the induction. Serum VEGF level was determined by ELISA and expression of VEGFR-2 and CD31 were detected on immunohistochemistry. Results This study showed increased expression of serum VEGF level, and VEGFR-2 expression was found significantly on day 7 and 14 in the treatment group compared to the control group. CD31 expression was significantly different compared to the control groups on day 4, 7, and 14 of administration. Conclusion The potential effect of bay leaf extract on angiogenesis in acute coronary syndrome (ACS) as adjuvant for the treatment. Bay leaf extract has been shown to support angiogenesis and maintain endothelial integrity that leads to better prognosis for reperfusion on ischemic tissue.
- Published
- 2020
22. Comparison of Chemical Composition and Biological Properties of Essential Oils Obtained by Hydrodistillation and Steam Distillation of Laurus nobilis L
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Kristýna Řebíčková, Tomáš Bajer, Petra Bajerová, David Šilha, and Karel Ventura
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0301 basic medicine ,DPPH ,Laurus ,complex mixtures ,Gas Chromatography-Mass Spectrometry ,law.invention ,Steam distillation ,03 medical and health sciences ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Laurus nobilis ,food ,law ,Oils, Volatile ,Flame ionization detector ,Distillation ,Essential oil ,030109 nutrition & dietetics ,Chromatography ,Chemistry ,04 agricultural and veterinary sciences ,Antimicrobial ,040401 food science ,food.food ,Steam ,Chemistry (miscellaneous) ,Gas chromatography ,Food Science - Abstract
The purpose of this study was to compare the yield, chemical composition, antimicrobial and antioxidant properties of essential oils isolated from leaves of Laurus nobilis L. by two different distillation methods. The essential oils isolated by hydrodistillation (HD) and steam distillation (SD) were analyzed by gas chromatography coupled to mass spectrometry (GC-MS) and gas chromatography with flame ionization detector (GC-FID). Hydrodistillation produced a yield of 0.95 ± 0.06% which is slightly higher than yield obtained by steam distillation 0.79 ± 0.07%. Seventy three compounds in the bay leaves oil obtained by steam distillation were identified while in essential oil obtained by hydrodistillation were identified only 54 compounds. The antioxidant activity was evaluated by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical method. Antimicrobial activity of obtained essential oils was evaluated by disc diffusion method in comparison with several chosen antimicrobials. The antimicrobial activity was tested on five microorganisms - Escherichia coli, Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa and Candida albicans. In general, oils produced by steam distillation had higher antimicrobial and antioxidant activities than hydrodistillation extracts. It seems that hydrodistillation is better for higher yield while steam distillation is better to use for more quality oils with stronger biological properties.
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- 2020
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23. A World Transgressed: Icon and Iconoclasm in Eugene Vodolazkin’s Laurus
- Author
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Thomas Breedlove
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Literature and Literary Theory ,biology ,media_common.quotation_subject ,Iconoclasm ,Religious studies ,Art history ,Laurus ,Icon ,Art ,biology.organism_classification ,computer ,computer.programming_language ,media_common - Abstract
The subject of this article is the iconic meeting of divine presence and divine absence. In the icon, divine presence is scandalous: the icon speaks of the impossibility of correspondence, the impossibility of making God present, and at the same time of the reality of divine presence. Nothing of or in the icon is commensurable to this divine presence; yet this poverty of the icon is its witness to the nature of a presence that transcends the paradox of compresence and exclusivity. This essay develops this account of divine presence in conversation with a reading of Eugene Vodolazkin’s novel Laurus and its depiction of holy foolery. Drawing parallels between divine presence in the icon and the scandalous and transgressive compresence of profane and sacred in the novel, the essay argues both for the iconic character of the novel and, consequently, for the novel’s illumination of the incarnational logic undergirding the icon itself.
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- 2020
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24. Gas chromatography-mass spectrometry analysis, phytochemical screening and antiprotozoal effects of the methanolic Viola tricolor and acetonic Laurus nobilis extracts
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Amany El-Mleeh, Ikuo Igarashi, Oluyomi Stephen Adeyemi, Amany Magdy Beshbishy, Gaber El-Saber Batiha, Eman K. Rashwan, Eman H. Nadwa, and Luay Alkazmi
- Subjects
medicine.drug_class ,Phytochemicals ,Antiprotozoal Agents ,Babesia ,Laurus ,01 natural sciences ,Gas Chromatography-Mass Spectrometry ,Acetone ,03 medical and health sciences ,chemistry.chemical_compound ,Laurus nobilis ,food ,Viola ,In vivo ,Theileria ,medicine ,Viability assay ,030304 developmental biology ,EC50 ,0303 health sciences ,Natural products ,Traditional medicine ,biology ,010405 organic chemistry ,Plant Extracts ,Drug discovery ,Methanol ,Babesia bovis ,Medicinal biochemistry ,lcsh:Other systems of medicine ,biology.organism_classification ,lcsh:RZ201-999 ,Parasitic diseases ,food.food ,0104 chemical sciences ,Complementary and alternative medicine ,chemistry ,Phytochemical ,Antiprotozoal ,Growth inhibition ,Research Article - Abstract
Background The antiprotozoal and antioxidant activities of Viola tricolor and Laurus nobilis have been reported recently. Thus, the existing study pursued to assess the growth inhibition effect of methanolic extract of V. tricolor (MEVT) and acetonic extract of L. nobilis (AELN) against five Babesia parasites and Theileria equi in vitro and in vivo. Results MEVT and AELN suppressed Babesia bovis, B. bigemina, B. divergens, B. caballi, and T. equi growth at half-maximal inhibitory concentration (IC50) values of 75.7 ± 2.6, 43.3 ± 1.8, 67.6 ± 2.8, 48 ± 3.8, 54 ± 2.1 μg/mL, and 86.6 ± 8.2, 33.3 ± 5.1, 62.2 ± 3.3, 34.5 ± 7.5 and 82.2 ± 9.3 μg/mL, respectively. Qualitative phytochemical estimation revealed that both extracts containing multiple bioactive constituents and significant amounts of flavonoids and phenols. The toxicity assay revealed that MEVT and AELN affected the mouse embryonic fibroblast (NIH/3 T3) and Madin–Darby bovine kidney (MDBK) cell viability with half-maximum effective concentrations (EC50) of 930 ± 29.9, 1260 ± 18.9 μg/mL, and 573.7 ± 12.4, 831 ± 19.9 μg/mL, respectively, while human foreskin fibroblasts (HFF) cell viability was not influenced even at 1500 μg/mL. The in vivo experiment revealed that the oral administration of MEVT and AELN prohibited B. microti multiplication in mice by 35.1 and 56.1%, respectively. Conclusions These analyses indicate the prospects of MEVT and AELN as good candidates for isolating new anti-protozoal compounds which could assist in the development of new drug molecules with new drug targets.
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- 2020
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25. Arthropods and other biota associated with the Azorean trees and shrubs : Laurus azorica (Seub) Franco (Magnoliophyta, Magnoliopsida, Laurales, Lauraceae)
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Noelline Tsafack, Rosalina Gabriel, Rui Elias, Mário Boieiro, Maria Teresa Ferreira, and Paulo Borges
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islands ,Lichen ,arthropods ,Laurus ,lichen ,Native and Introduced Species ,mosses ,Magnoliopsida ,Lauraceae ,Endemic ,bryophytes ,Mosses ,vascular plants ,Plantae ,Arthropods ,Ecology, Evolution, Behavior and Systematics ,Azores ,Islands ,Vascular Plants ,Ecology ,Bryophytes ,Biota ,native and introduced species ,Laurus azorica ,liverworts ,Tracheophyta ,Native Forest ,Laurales ,Liverworts ,native forest ,endemic - Abstract
This study explores the composition and structure of species communities associated with the native Azorean tree species Laurus azorica (Seub) Franco (Magnoliophyta, Magnoliopsida, Laurales, Lauraceae). Communities were sampled in six Islands covering the occidental (Flores), central (Faial, Pico, Terceira) and eastern (São Miguel, Santa Maria) groups of Azores Archipelago during the BALA project, using standardised sampling protocols for surveying canopy arthropod fauna. In addition, the study characterises the distribution of species regarding their colonisation status and feeding modes and, finally, compares communities of different Islands. Ninety-four arthropod species totalling 10,313 specimens were collected on L. azorica. The Arthropod community was dominated by Hemiptera species, most of them being herbivores. Endemic and native species showed a very high abundance representing about 94% of the total species abundance. However, despite introduced species being represented by few individuals (6% of the total abundance), their diversity was remarkable (28 species and no significant difference with diversity found in endemic and native species communities). Analysis of rarity patterns revealed a stable community of endemic species (alpha gambin SAD model approaching a log-normal shape), intermediate stable community of native species (alpha SAD gambin model approaching a poisson log-normal) and a less stable community of introduced species (alpha SAD gambin model approaching a log-series shape). A dissimilarity analysis revealed high similarity between communities of Terceira and Pico and high dissimilarity between Flores and Faial communities. We observed a clear individualisation of the different islands when considering endemic species, whereas we observed high overlap when considering native and introduced species groups. Canopy community distribution confirms the results obtained in a previous study which suggest the stability of native and endemic arthropods species communities over introduced species community in native forests fragments. Arthropod species were richer than bryophytes, lichens and vascular plants species. We found that L. azorica serve as the substrate for very few vascular plants species (four epiphytes species), which were present in all Islands, except Elaphoglossum semicylindricum, which does not occur in Santa Maria. L. azorica shelters a significant number of bryophytes and lichens species. Thirty-two lichens and 92 bryophyte species, including 57 liverworts and 35 mosses, are referred to this phorophyte. Five bryophyte species, all Azorean endemics, are considered Endangered by IUCN Criteria. L. azorica harbours a poor community of epiphyte vascular plant species and all of them were ferns, but the community of bryophytes and lichens are not negligible although very low compared to the community found on other previously studied Azorean trees, the Azorean cedar Juniperus brevifolia. The present study shows that most islands present particular species distribution patterns without geographical correlation and that conservation programmes should be adapted to each Island. The study, therefore, calls for a specialisation of conservation programmes for each of the Islands. NT and MTF are currently funded by the project LIFE BEETLES (LIFE 18 NAT/PT/000864) at "Secretaria Regional do Ambiente e Alterações Climáticas". PAVB, RE and RG are funded by the project AZORESBIOPORTAL-PORBIOTA (ACORES-01-0145FEDER-000072) (2019). info:eu-repo/semantics/publishedVersion
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- 2022
26. Laurel Attenuates Dexamethasone-Induced Skeletal Muscle Atrophy In Vitro and in a Rat Model
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Huijuan Jia, Takanori Yamashita, Xuguang Li, and Hisanori Kato
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Male ,Proteasome Endopeptidase Complex ,Nutrition and Dietetics ,Plant Extracts ,Ubiquitin ,Laurus ,Dexamethasone ,Rats ,Muscular Atrophy ,Quality of Life ,Animals ,laurel ,skeletal muscle atrophy ,proteolysis ,MuRF1 ,C2C12 myotubes ,rat ,Rats, Wistar ,Muscle, Skeletal ,Food Science - Abstract
Prevention of muscle atrophy contributes to improved quality of life and life expectancy. In this study, we investigated the effects of laurel, selected from 34 spices and herbs, on dexamethasone (DEX)-induced skeletal muscle atrophy and deciphered the underlying mechanisms. Co-treatment of C2C12 myotubes with laurel for 12 h inhibited the DEX-induced expression of intracellular ubiquitin ligases—muscle atrophy F-box (atrogin-1/MAFbx) and muscle RING finger 1 (MuRF1)—and reduction in myotube diameter. Male Wistar rats were supplemented with 2% laurel for 17 days, with DEX-induced skeletal muscle atrophy occurring in the last 3 days. Laurel supplementation inhibited the mRNA expression of MuRF1, regulated DNA damage and development 1 (Redd1), and forkhead box class O 1 (Foxo1) in the muscles of rats. Mechanistically, we evaluated the effects of laurel on the cellular proteolysis machinery—namely, the ubiquitin/proteasome system and autophagy—and the mTOR signaling pathway, which regulates protein synthesis. These data indicated that the amelioration of DEX-induced skeletal muscle atrophy induced by laurel, is mainly mediated by the transcriptional inhibition of downstream factors of the ubiquitin-proteasome system. Thus, laurel may be a potential food ingredient that prevents muscle atrophy.
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- 2022
27. Antioxidant and Anti-Atherogenic Activities of Essential Oils from
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Dyana, Odeh, Nada, Oršolić, Marija, Berendika, Domagoj, Đikić, Sandra, Domjanić Drozdek, Sandra, Balbino, Maja, Repajić, Verica, Dragović-Uzelac, and Irena Landeka, Jurčević
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Lipoproteins, LDL ,Weight Loss ,Oils, Volatile ,Animals ,Laurus ,Antioxidants ,Myrtus ,Rats - Abstract
Essential oils (EOs) from aromatic and medicinal plants, such as myrtle (
- Published
- 2022
28. Microscopic features of raw materials of Laurus nobilis L.
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S. G. Musienko and V. S. Kislichenko
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Laurus ,Microscopic Features ,Plant Leaves ,Pharmacy and materia medica ,RS1-441 - Abstract
Aim. The urgent task of contemporary pharmacy is the continuation of studies of popular medicinal plants’ raw materials, for example, laurel, for further adjustment of its application. To establish diagnostic microscopic features the anatomic structure of laurel shoots and leaves has been studied using well-known micro technical techniques. Methods and results. It has been established that shoots had absently vascular type of xylem with frequent single-row pith rays, and etheric oil receptacles are located in phloem part, the leaf is hypostomatic with dorsoventral type of structure, an epidermis is with frequent stoma of anomocytic type, the main vein and petiole are single fascicular. Conclusion. This shows that diagnostic features of shoot structure are the type and the localization of the etheric oil receptacles, the type of the xylem, the localization features of the pith rays, leaf – the absence of pubescence, the type of leaf blade, the localization features of stoma. Laurus; Microscopic Features; Plant Shoots; Plant Leaves
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- 2014
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29. Effectiveness of cardamom (Elettaria cardamomum) or bay leaf (Laurus nobilis L.) powder in improving the quality of Labneh
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Meranda Abd El-Megaly, Tawfek and Ahmed Roshdy Mohamed, Ali
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Elettaria ,Humans ,Powders ,Spices ,Laurus ,Antioxidants - Abstract
Herbs and spices are natural ingredients that have been widely used not just as food flavouring but also for their health attributes. The antioxidant, antimicrobial and anticancer components present in them enhance the health and medical status of human beings. The present study aims to produce Labneh fortified with cardamom and bay leaf powder to enhance the quality and shelf life.Cardamom or bay leaf powder were added separately at the ratios of 0.25, 0.50, 0.75 and 1% (w/w) to Labneh and the treatments were compared with a control without cardamom or bay leaf powder during storage (at 5plusmn;1deg;C for 40 days).The total solids, fat, ash, carbohydrate and fiber contents were insignificantly higher in Labneh containing cardamom or bay leaf powder than control. The titratable acidity of Labneh gradually increased, whereas the pH values decreased by increasing the concentration of cardamom or bay leaf powder during the storage period. No significant differences were found in any textural parameters between Labneh containing condiments and control, except for that containing 1% cardamom or bay leaf powder, which exhibited higher hardness during the storage period. Minerals, antioxidants activity (RSA%), total phenolic (TPC) and total flavonoids content (TFC) increased with the increase of the added percentage of cardamom or bay leaf powder compared to control. Due to the stimulatory effect of cardamom and bay leaves on Lactic acid bacteria (LAB), the viability of the total bacterial count (TBC) gradually increased as the level of those condiments increased. The control became moldy after 10 days of cold storage while Labneh containing condiments remained unspoiled with yeasts and moulds for up to 30 days of cold storage. Sensory evaluation indicated that 1% addition of cardamom and 0.75% of bay leaf powder to Labneh improved quality and extends the shelf life of Labneh up to 30 days at 5plusmn;1deg;C.Labneh supplemented with cardamom or bay leaf powder can be considered as a novel product with acceptable quality and extended shelf life.
- Published
- 2022
30. Influence of laurel (Laurus nobilis) essential oil on gut function of Black Sea salmon (Salmo labrax) juveniles
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Osman Tolga Özel, Ekrem Cem Çankiriligil, Selin Ertürk-Gürkan, Isa Coskun, Mustafa Türe, Ziraat Fakültesi, and İsa Coşkun / 0000-0001-5495-6006
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Trout ,Feeding ,Fishes ,Growth ,Laurus ,Digestion physiology ,Salmo trutta labrax ,Food Animals ,Black Sea ,Salmon ,Oils, Volatile ,Escherichia coli ,Animals ,Herbal ,Animal Science and Zoology - Abstract
The present work investigated the efects of dietary incorporation of laurel (Laurus nobilis) essential oil on the zootechnical performance and digestive physiology of juvenile Black Sea salmon (Salmo labrax). In this trial, 15 fberglass tanks (39×39 cm square and 33 cm high) were used. Forty-fve fsh (3.52±0.01 g) were placed randomly per tank. Fish were fed for 90 days with the diet containing 50, 100, 200, or 400 mg kg−1 laurel (Laurus nobilis) essential oils, respectively. The work was performed in the recirculating aquaculture system (RAS) operating with freshwater. Fish were manually fed 3% level of live weight during the experiment period. Final weight (FW), weight gain (WG), feed conversion rate (FCR), and specifc growth rate (SGR) were not afected by laurel essential oil supplementation. Dietary laurel essential oil (50 mg kg−1) afected positively the surface area of fsh intestinal villus that required for digestion. Both villus height and villus width were afected positively in fsh fed with 50 mg laurel essential oil kg−1. While incorporation with 100 mg laurel essential oil kg−1 increased the total α-amylase enzyme, 50 mg laurel kg−1 increased lipase enzyme. Moreover, 50 mg laurel essential oil kg−1 increased lactic acid bacteria (LAB) count in fsh. Besides, 50 mg laurel essential oil kg−1 reduced the number of total coliform and E. coli.
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- 2022
31. Recovery and Seasonal Variation of Cinnamtannin B‐1 from Laurel ( Laurus nobilis L.) Pruning Wood Wastes
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Joaquín Altarejos, Juan Ortega-Vidal, Sofia Salido, and Alfonso Alejo Armijo
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Molecular Medicine ,Proanthocyanidins ,Bioengineering ,Seasons ,General Chemistry ,General Medicine ,Laurus ,Wood ,Molecular Biology ,Biochemistry ,Catechin - Abstract
Cinnamtannin B-1 (C-B1) is a commercially-available trimeric A-type procyanidin with remarkable cellular actions mainly derived from its high radical scavenging activity. C-B1 is the main phenolic compound of laurel wood, which has previously been isolated by a combination of conventional chromatographic techniques. The first aim of this work was to find laurel trees containing as much C-B1 as possible, and learn about the influence of variables, such as gender and harvest time, on the production of C-B1 by the tree. It was found that all studied trees tend to give higher C-B1 percentages in the May-July period, from 6 % to 18 %, and lower ones around March (spring) and November (fall), from 1 % to 8 %. In a general way, it also seems that the female trees tend to produce a bit more C-B1 (from 2.8 % to 17.3 %) than male ones (from 1.7 % to 13.4 %). In addition, eight minor phenolic compounds [(-)-ent-catechin (1), (-)-ent-epicatechin-(4α→8)-ent-epicatechin (2), (epi)catechin-(4→8)-(epi)afzelechin-(4→8)-(epi)catechin (3), (+)-epiafzelechin-(4β→8)-epicatechin (4), (-)-epicatechin (5), (-)-afzelechin-(4α→8)-epicatechin (6), (epi)afzelechin-(4→8)-(epi)afzelechin-(4→8)-(epi)catechin (7) and (+)-epicatechin-(4β→8,2β→O-7)-epicatechin-(4β→8)-catechin (C-D1)] were found and quantified in the ethyl acetate extract of the wood samples. The second aim of this work was to improve the recovery of C-B1 from laurel wood. The use of the fast centrifugal partition chromatography (FCPC) technique has allowed for a recovery of 96 % of a technical-grade C-B1 (64 % in a previous protocol using conventional column chromatography on silica gel and size-exclusion chromatography).
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- 2022
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32. Biological Effects of Aqueous Extract of Laurus noboilis L. Leaves on Some Histological and Immunological Parameters in Male Rat Liver Affected by Aluminum Chloride
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N, Marza Hamza, S, Malik Yasir, and K, Abdulsajjad M Hussain
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Male ,Plant Leaves ,Liver ,Plant Extracts ,Body Weight ,Aluminum Chloride ,Animals ,Original Article ,Rats, Wistar ,Laurus ,Rats - Abstract
The present current study aimed to assess the protective effect of the aqueous extract of Laurus noboilis L. leaves against the toxic effects of aluminum chloride on liver tissue. A number of 36 male albino rats (Wistar) were randomly assigned to six groups (n=6) and treated for 30 days: Group 1 was regarded as the control group, Group 2 received Aluminum Chloride 90 mg/kg body weight orally by gavage, Group3: normal rats received aqueous extracts of Lurus Nobilis L. leaf 150 mg/kg body weight, Group 4: normal rats received aqueous extracts of Lurus Nobilis L. leaf 200 mg/kg body weight, Group 5: normal rats received aqueous extracts of Lurus Nobilis L. leaf 150 mg/kg body weight after a period of 4 h following treatment by Aluminum Chloride 90 mg/kg body weight, Group 6: normal rats received aqueous extracts of Laurus nobilis L. 200 mg /kg after a period of 4 h following treatment by Aluminum chloride with 90 mg/kg body weight. All the experimental animals were sacrificed, and sections of their liver were stained with Hematoxylin-Eosin for histological evaluations. Moreover, the liver enzymes and immune cytokines, such as Alkaline phosphatase (ALP), Alanine aminotransferase (ALT), and Aspartate aminotransferase (AST), tumor necrosis factor-alpha (TNF-alpha), and interleukin-10 (IL-10) were measured. As evidenced by the results of the current study, treatment with aqueous extract of Lurus Nobilis L. leaves at a dose of 150 and 200 mg/kg body weight orally contributed to the mitigation of the toxic effects of Aluminum Chloride in albino rats by reducing the damage and inflammation in the hepatocytes. The study suggested that the aqueous extract of Lurus Nobilis L. enhances the protective effect against liver toxicity.
- Published
- 2021
33. Феномен молчания в современной русской прозе (романы Евгения Водолазкина, Людмилы Улицкой и Гузель Яхиной)
- Author
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Tünde Szabó and Печский Университет, Венгрия Институт cлавистики Кафедра русской филологии H-7624 Pécs Ifjúság útja 6
- Subjects
The Kukotsky Enigma ,лавр ,трансцендентное ,Language and Literature ,Deti moi ,General Medicine ,Laurus ,Лавр ,the anthropology of silence ,Дети мои ,антропология молчания ,rejection of the postmodern ,Казус Кукоцкого ,дети мои ,казус кукоцкого ,transcendence ,отказ от постмодернизма - Abstract
Silence, a characteristic theme in Russian literature, also plays a significant role in contemporary Russian fiction. Yevgeny Vodolazkin’s Laurus, Lyudmila Ulitskaya’s The Kukotsky Enigma and Guzel Yakhina’s Deti moi [‘My Children’] share several features in their representation of the phenomenon of silence, despite the manifold differences in the plots, the periods in which they are set and in the characters. The first part of the paper explores the components of the three works that establish connections between silence and the conflict, the chronotope and the issue of communication. In each case the plot focuses on the story of a deep but doomed love. It is the protagonist that is responsible for the love’s tragic end and will later try to redeem his or her sin and thereby preserve love in themselves. In all the three works, the reason for the silence of the protagonist – Arseniy, a mediaeval healer, Yelena Kukotskaya, the wife of a gynaecologist from Moscow, and the teacher Bach, a Volga German – is the violence they have had to endure. The spatial attribute of silence is a place on the periphery, which assumes a certain symbolic meaning. In each of the plots, water becomes a very significant spatial element, and it assumes a distinctive mythopoetic function. All three protagonists partake in some mystical experience in which linear time, which plays a dominant role in the depiction of their progression through life, is eliminated. The silent characters also stand out from their environment because of their special connection with language and culture. They replace speech with gestures and writing, and their connection with culture becomes a starting point for certain parallels with the literary tradition. In the second part of the study the common features of the three plots are examined from the point of view of the anthropology of silence and in the perspective of postmodernism. On the basis of this, the author of the paper concludes that none of the three writers are postmodern in the way they describe silence, in terms of either anthropology or aesthetics. Firstly, the image of the human which they revive is characteristic of the Christian and the Cartesian tradition, and alien to the postmodern. Secondly, contrary to the way the function of a literary author is conceptualised in postmodernism, in all the three novels the writers adopt an omniscient position, that is, they embrace the role and responsibility of a centre of sense-making and language. Характерная для классической русской литературы тема молчания играет важную роль и в современной русской прозе. В романах Е. Водолазкина Лавр, Л. Улицкой Казус Кукоцкого и Г. Яхиной Дети мои, при всей разнице сюжетов, различии эпох и судеб героев в изображе- нии и осмыслении феномена молчания много общего. В первой части статьи рассматриваются общие моменты, связанные с интригой, хро- нотопом и с проблемой коммуникации. В основе сюжета каждого романа – история вели- кой, но обреченной любви. В трагичности любви виновен сам герой, который впоследствии пытается искупить свою вину и, таким образом, сохранить любовь в себе. Причиной, по- влекшей за собой молчание героев – средневекового лекаря Арсения, жены московского ги- неколога Елены Кукоцкой и поволжского немца учителя Баха – во всех трех произведениях служит пережитое ими насилие. Пространственным атрибутом молчания является пери- ферийное место, имеющее символическую окраску. Особую мифопоэтическую функцию выполняет при этом один из главных пространственных элементов трех сюжетов – вода. Каждый из молчащих героев переживет определенный мистический опыт, в котором нару- шается линейность времени, доминирующая в изложении их жизненного пути. Молчащие герои характеризуются и своим особым отношением к языку и культуре. Устную речь они заменяют жестами и письменным языком, а их приобщенность к культуре служит, как пра- вило, исходной точкой для параллелей с литературной традицией. Все эти общие особенности трех сюжетов во второй части статьи осмысляются с точ- ки зрения антропологии молчания и с позиции постмодернизма. На основе этого делается вывод, что в изображении феномена молчания все три автора далеки от положений постмо- дернизма, как в антропологическом, так и в эстетическом плане. С одной стороны, в образах молчащих героев возобновляется чуждое для постмодернизма представление о человеке, характерное для христианской и картезианской традиции. С другой стороны, в противовес постмодернистским высказываниям о роли автора литературных произведений, в каждом из трех романов авторская позиция – всезнающая, автор берет на себя задачу смыслопорож- дающего и языкового центра.
- Published
- 2021
34. Erythema multiforme-like allergic contact dermatitis from bay leaves in a home-made natural remedy.
- Author
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Martínez-Fernández A, Sánchez-Herreros C, Cabana-Navia R, Camino-Salvador JM, Palomo-Cousido S, Arribas-Granados P, Gatica-Ortega ME, and Pastor-Nieto MA
- Subjects
- Humans, Allergens, Plant Leaves adverse effects, Dermatitis, Allergic Contact diagnosis, Dermatitis, Allergic Contact etiology, Laurus, Erythema Multiforme chemically induced, Erythema Multiforme diagnosis
- Published
- 2023
- Full Text
- View/download PDF
35. Effect of multifactorial free and liposome-coated of bay laurel (Laurus nobilis) and rosemary (Salvia rosmarinus) extracts on the behavior of Listeria monocytogenes and Vibrio parahaemolyticus in silver carp (Hypophthalmichthys molitrix) stored at 4 °C
- Author
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Jalal Aala, Mohammad Ahmadi, Leila Golestan, Seyed-Ahmad Shahidi, and Nabi Shariatifar
- Subjects
Flavonoids ,Carps ,Plant Extracts ,Laurus ,Listeria monocytogenes ,Biochemistry ,Rosmarinus ,Catechin ,Anti-Bacterial Agents ,Phenols ,Gallic Acid ,Liposomes ,Animals ,Vibrio parahaemolyticus ,Salvia ,General Environmental Science - Abstract
In this study, the effect of bay laurel (Laurus nobilis) (LE) and rosemary (Salvia rosmarinus) (RE) extracts, in two free forms and loaded with liposome, on the behavior of Listeria monocytogenes and Vibrio parahaemolyticus in silver carp (Hypophthalmichthys molitrix) minced, were examined. After extraction, the extracts were evaluated for phenolic, flavonoid, and antibacterial compounds (determination of MIC and MBC). The treatments studied included control treatment, treatments containing 1 and 1.5% of free extracts, and treatments containing 1 and 1.5% of liposome-coated extracts of LE and RE which were examined at times of 0, 4, 8, and 12 days with 3 replications. The findings indicated that the amount of flavonoid and phenolic compounds and the results of antibacterial tests (MIC and MBC tests) in RE extract were more favorable than LE extract. The aqueous extract of rosemary had higher levels of phenolic (344.66 mg gallic acid/g extract) and flavonoid (245.33 mg Catechin/g extract) compounds compared to the bay laurel extract (257.66 mg gallic acid/g extract) and (151.26 mg Catechin/g extract) respectively. The results of the behavior of L. monocytogenes and V. parahaemolyticus in fish showed that with increasing the storage time at 4 °C, these parameters increased, but in the treatment containing the coated forms of LE and RE extracts (concentration 1.5%), changes were significantly slower than other treatments. According to the obtained results, it can be concluded that in general, adding extracts of bay laurel and rosemary in a concentration of 1.5% reduces the proliferation of bacteria that cause food poisoning.
- Published
- 2023
- Full Text
- View/download PDF
36. Laurus nobilis (Lauraceae) especie naturalizada en la República Argentina Laurus nobilis (Lauraceae), a naturalized species in Argentina
- Author
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Gustavo Delucchi, Eduardo Farina, and Silvia Torres Robles
- Subjects
Argentina ,Buenos Aires ,La Pampa ,Laurus ,Lauraceae ,Naturalización ,Naturalization ,Science ,Botany ,QK1-989 - Abstract
En este trabajo se menciona por primera vez a Laurus nobilis L. (Lauraceae) como especie naturalizada en la Argentina en las provincias de Buenos Aires y La Pampa. Se describe e ilustra a la especie.In this paper Laurus nobilis L. (Lauraceae) is reported for the first time naturalized in the provinces of Buenos Aires and La Pampa (Argentina). A description and ilustration of this species are given.
- Published
- 2007
37. Pluteus lauracearum (Agaricales, Basidiomycota), a new species of Pluteus sect. Hispidoderma from thermophilic Laurus forests
- Author
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Hana Ševčíková, Oğuzhan Kaygusuz, Alfredo Justo, Henning Knudsen, and İbrahim Türkekul
- Subjects
Agaricomycetes ,biology ,Basidiomycota ,Fungi ,Plant Science ,Biodiversity ,biology.organism_classification ,Pluteaceae ,Botany ,Basidiocarp ,Agaricales ,Laurus ,Taxonomy (biology) ,Pileus ,Pluteus ,Ecology, Evolution, Behavior and Systematics ,Taxonomy - Abstract
Pluteus lauracearum, a new species of Pluteus sect. Hispidoderma, is described and illustrated based on macro- and micromorphological data and phylogenetic analyses of the nuclear rDNA sequences of the ITS1-5.8S-ITS2 region. Morphologically, this novel species is characterized by small basidiomata having whitish to dark brown pileus colour, with finely to distinctly granulose surface, a white and translucently striate pileus margin, and mostly narrowly fusiform to lageniform pleurocystidia with long narrow necks and a distinctly subcapitate to capitate apex. This new species is described based on collections made in Turkey (Kuşadası) and Portugal (Madeira), where they were growing on well-rotten wood in thermophilic Laurus forests. Pluteus lauracearum is compared with taxa in Pluteus sect. Hispidoderma that are morphologically similar and/or phylogenetically related.
- Published
- 2021
38. ‘Time is not all powerful’ : the Johannine eschatological vision in Eugene Vodolazkin’s Laurus
- Author
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Ewan Bowlby and University of St Andrews. School of Divinity
- Subjects
Eugene Vodolazkin ,Literature and Literary Theory ,biology ,Eschatology ,Temporality ,Philosophy ,T-NDAS ,Religious studies ,NIS ,biology.organism_classification ,Laurus ,Revelation ,Gospel of John ,BR Christianity ,Theology ,BR - Abstract
Eugene Vodolazkin’s Laurus employs literary ‘distortion’ to capture and convey the eschatological paradoxes of the Fourth Gospel. Having outlined the complexity and contradictions of the Johannine eschatological vision, this article describes how Laurus meets the challenge presented by this vision. Rather than seeking to resolve the tension between vertical and horizontal eschatological dimensions, Vodolazkin reshapes time itself to accommodate both realised and future-oriented eschatologies. This remythologising of time is a distortion that brings the reader closer to the rich imaginative depths of Scripture: a powerful form of resistance to limited, inflexible accounts of the ‘real’.
- Published
- 2021
39. The examination of the water concentrates of laurus nobilis leaves antibacterial activity utilizing various strategies for extraction (in vitro)
- Author
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Younis H, Bilal R, Khadim T, and Al-Ogaili N
- Subjects
Traditional medicine ,Extraction (chemistry) ,Decoction ,Biology ,biology.organism_classification ,Antimicrobial ,food.food ,Antibiotic resistance ,Laurus nobilis ,food ,Maceration (wine) ,Laurus ,General Pharmacology, Toxicology and Pharmaceutics ,Antibacterial activity - Abstract
The utilization of antimicrobials is essential to battle bacterial ailment. Yet, because of the expanding abuse of antimicrobial medications that are utilized in the treatment of infectious diseases, resistance by bacteria developed. The objective of the investigation is to detect the in vitro antibacterial impact of bay leaf water concentrates utilizing distinctive extraction strategies. The impact of water concentrates of bay leaf ( Laurus noblis) employing maceration and decoction extraction methods against Staphylococcus aureus and Escherichia coli were tested by “agar well diffusion” technique. The consequences of the investigation demonstrated insignificant differences between techniques for extractions. The study concludes that the in vitro antibacterial effect might be potentiated against test strains by using different methods for extraction and solvent systems, which might be helpful to defeat antimicrobial resistance.
- Published
- 2020
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40. SYMBOLISM OF 'BETWEEN-THE-WORLDS SPACE' IN E. G. VODOLAZKIN’S NOVEL 'LAURUS'
- Author
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Nataliya Vladimirovna Sorokina and Denis Sergeevich Gudin
- Subjects
Pure mathematics ,biology ,media_common.quotation_subject ,Laurus ,Art ,Space (mathematics) ,biology.organism_classification ,media_common - Published
- 2019
- Full Text
- View/download PDF
41. Antifungal Activity of Essential Oils Against Candida Species Isolated from Clinical Samples
- Author
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Susana B. Córdoba, Wanda Szusz, Walter Vivot, and Graciela Noemí Albo
- Subjects
0301 basic medicine ,Antifungal Agents ,Veterinary (miscellaneous) ,030106 microbiology ,Thymus vulgaris ,Microbial Sensitivity Tests ,Laurus ,Applied Microbiology and Biotechnology ,Microbiology ,Thymus Plant ,030207 dermatology & venereal diseases ,03 medical and health sciences ,Minimum inhibitory concentration ,0302 clinical medicine ,Cymbopogon citratus ,Amphotericin B ,Oils, Volatile ,medicine ,Humans ,Cymbopogon ,Candida spp ,Candida ,Lippia ,Traditional medicine ,biology ,Ciencias Veterinarias ,Candidiasis ,Mentha piperita ,bacterial infections and mycoses ,biology.organism_classification ,Corpus albicans ,Essential oils ,Officinalis ,Agronomy and Crop Science ,Laurus nobilis ,Fluconazole ,Lippia junelliana ,medicine.drug - Abstract
We evaluated the in vitro antifungal activity of essential oils obtained from the aromatic plants Laurus nobilis, Thymus vulgaris, Mentha piperita, Cymbopogon citratus and Lippia junelliana against the following Candida species isolated from clinical samples: C. krusei (n = 10); C. albicans (n = 50); C. glabrata (n = 70) and C. parapsilosis (n = 80). The minimal inhibitory concentration (MIC) was determined according to EDef 7.3.1 document from EUCAST. Amphotericin B and fluconazole were the antifungal drugs used as inhibition control. The concentration ranges evaluated were 0.4–800 and 0.03–128 mg l⁻¹ for essential oils and antifungal drugs, respectively. MIC₅₀ and MIC₉₀, mode and ranges were calculated. All the Candida spp. evaluated were susceptible to amphotericin B (MIC ≤ 1 mg l⁻¹), while fluconazole was inactive for C. krusei (MIC ≥ 32 mg l⁻¹) and intermediate for C. glabrata (MIC ≤ 32 mg l⁻¹). The essential oils showed antifungal activity on Candida spp. tested with MIC₉₀ values ranging from 0.8 to 800 mg l⁻¹. In general, the most active essential oils were L. nobilis and T. vulgaris (MIC₉₀ 0.8–0.16 mg l⁻¹), and the least active was C. officinalis (MIC₉₀ 400–800 mg l⁻¹). C. krusei was inhibited by 5/6 of the essential oils evaluated, and C. glabrata was the least susceptible one. This in vitro study confirms the antifungal activity of these six essential oils assayed which could be a potential source of new molecules useful to control fungal infections caused by some Candida species, including those resistant to antifungal drugs., Facultad de Ciencias Veterinarias, Facultad de Ciencias Agrarias y Forestales
- Published
- 2019
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- View/download PDF
42. Prevention of Saprolegniasis in rainbow trout (Oncorhynchus mykiss) eggs using oregano (Origanum onites) and laurel (Laurus nobilis) essential oils
- Author
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Rahmi Can, Özdemir, Yiğit, Taştan, and Kerim, Güney
- Subjects
Fish Diseases ,Oncorhynchus mykiss ,Origanum ,Oils, Volatile ,Animals ,Laurus - Abstract
The present study investigated the antifungal effects of essential oils of oregano (Origanum onites) and laurel (Laurus nobilis) on Saprolegniasis, a disease that occurs in rainbow trout eggs during the incubation period. Oregano and laurel were ground after drying, and essential oils were obtained by water distillation method using a Clevenger apparatus. The essential oils were added to potato dextrose agar (PDA) at the rates of 1-1000 ppm, and the minimum inhibitory concentration (MIC) was determined as 250 ppm whereas the minimum lethal concentration (MLC) was determined to be 500 ppm for both plants. In the in vivo trials, fertilized eggs were treated with predetermined doses either by bathing during water hardening and incubation period or only during incubation period, and death rates were monitored during embryological development. The best larvae hatching rate was determined in 500 ppm oregano and 500 ppm laurel groups treated during water hardening plus daily as 82.11% and 79.87%, respectively. According to the results, it was determined that oregano and laurel essential oils exhibited better results in all doses compared with the negative control group, and 500 ppm dose had a better effect than the positive control group treated with formalin.
- Published
- 2021
43. Artecanin of Laurus nobilis is a novel inhibitor of SARS-CoV-2 main protease with highly desirable druglikeness.
- Author
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Al-Shuhaib MBS, Hashim HO, Al-Shuhaib JMB, and Obayes DH
- Subjects
- SARS-CoV-2, Coronavirus 3C Proteases, Molecular Dynamics Simulation, Protease Inhibitors pharmacology, Molecular Docking Simulation, Laurus, COVID-19
- Abstract
Main protease (M
pro ) is a critical enzyme in the life cycle of severe acute respiratory syndrome Coronavirus -2 (SARS-CoV-2). Due to its essential role in the maturation of the polyproteins, the necessity to inhibit Mpro is one of the essential means to prevent the outbreak of COVID-19. In this context, this study was conducted on the natural compounds of medicinal plants that are commonly available in the Middle East to find out the most potent one to inhibit Mpro with the best bioavailability and druglikeness properties. A total of 3392 compounds of sixty-six medicinal plants were retrieved from PubChem database and docked against Mpro . Thirty compounds with the highest docking scores with Mpro were chosen for further virtual screening. Variable druglikeness and toxicity potentials of these compounds were evaluated using SwissADME and Protox servers respectively. Out of these virtually screened compounds, artecanin was predicted to exhibit the most favourable druglikeness potentials, accompanied by no predicted hepatoxicity, carcinogenicity, mutagenicity, and cytotoxicity. Molecular dynamics (MD) simulations showed that Mpro -artecanin complex exhibited comparable stability with that observed in the ligand-free Mpro . This study revealed for the first time that artecanin from Laurus nobilis provided a novel static and dynamic inhibition for Mpro with excellent safety, oral bioavailability, and pharmacokinetic profile. This study suggested the ability of artecanin to be used as a potential natural inhibitor that can be used to block or at least counteract the SARS-CoV-2 invasion.Communicated by Ramaswamy H. Sarma.- Published
- 2023
- Full Text
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44. Predicting of the current and future geographical distribution of Laurus nobilis L. under the effects of climate change.
- Author
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Akyol A, Örücü ÖK, Arslan ES, and Sarıkaya AG
- Subjects
- Humans, Ecosystem, Environmental Monitoring, Biodiversity, Climate Change, Laurus
- Abstract
Today, climate change affects all living things on earth. It also leads to serious losses in terms of biodiversity, ecosystem services, and human welfare. In this context, Laurus nobilis L. is a very important species for Turkey, and the Mediterranean countries. This research aimed to simulate the current distribution of the suitable habitat for L. nobilis in Turkey and to predict its possible range shifts in future climate scenarios. To predict the geographical distribution of L. nobilis, the study used the maximum-entropy algorithm-based MaxEnt 3.4.1 with seven bioclimatic variables created using the Community Climate System Model 4.0 (CCSM4) and the prediction models RCP4.5-8.5 for the years 2050-2070. The results indicated that the most important bioclimatic variables that shape the distribution of L. nobilis are BIO11-mean temperature of coldest quarter, and BIO7-annual temperature range. Two climate change scenarios predicted that the geographical distribution of L. nobilis would increase slightly and then decrease in the future. However, the spatial change analysis showed that the general geographical distribution area of L. nobilis did not change significantly, but the "moderate," "high," and "very high" suitable habitats changed towards "low" suitable habitats. These changes were particularly effective in Turkey's Mediterranean region, which shows that climate change is instrumental in determining the future of the Mediterranean ecosystem. Therefore, suitability mapping and change analysis of potential future bioclimatic habitats can help in planning for land use, conservation, and ecological restoration of L. nobilis., (© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
- Published
- 2023
- Full Text
- View/download PDF
45. In vitro acaricidal activity of essential oil and crude extracts of Laurus nobilis, (Lauraceae) grown in Tunisia, against arthropod ectoparasites of livestock and poultry: Hyalomma scupense and Dermanyssus gallinae
- Author
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Hichem Sebai, Dhouha Alimi, Azhar Hajri, and Selim Jallouli
- Subjects
0301 basic medicine ,Veterinary medicine ,Livestock ,Tunisia ,Dermanyssus gallinae ,030231 tropical medicine ,Sabinene ,Laurus ,Poultry ,law.invention ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Laurus nobilis ,food ,Linalool ,Dry weight ,law ,Oils, Volatile ,Animals ,Arthropods ,Essential oil ,Acaricides ,Amitraz ,General Veterinary ,biology ,Plant Extracts ,General Medicine ,Lauraceae ,030108 mycology & parasitology ,biology.organism_classification ,food.food ,chemistry ,Parasitology - Abstract
The current study assayed the toxicity of Laurus nobilis essential oil and crude extracts obtained using solvents of increasing polarity (cyclohexane, acetone and ethanol), on two ectoparasites of veterinary importance, i.e., Hyalomma scupense and Dermanyssus gallinae. The major components detected in bay laurel essential oil were dominated by 1.8-cineole (46.56 %), α-terpinenyl acetate (13.99 %), sabinene (7.69), α-pinene (5.75), linalool (5.50), methyleugenol (5.36 %) and β-pinene (3.97). The highest total phenolic and flavonoids contents were present in the ethalonic extract of L. nobilis leaves at an amount of 152.88 mg gallic acid equivalents per gram of dry weight (GAE/g DW) and 21.77 mg quercetin equivalent per gram of dry weight (QE/g DW), respectively. In vitro acaricidal effects of essensial oil and crude extract of L. nobilis against H. scupense were ascertained by adult immersion test of engorged females (AIT) and larval packet test (LPT) compared with a reference drug amitraz. The essential oil exhibited strong acaricidal activity against tick engorged female and inhibition of hatching eggs. After 24 h of exposure, at the highest tested concentration (100 mg/mL) essential oil induced 90.67 % mortality of H. scupense larvae (LC50 = 10.69 mg/mL). Otherwise, essential oil exhibited high acaricidal activity compared to extracts, and among the extract, the ethanolic extract revealed the highest acaricidal efficacy (81.27 % female mortality). Results from mite contact toxicity showed that essential oil and extracts from L. nobilis were toxic to D. gallinae. Bay essential oil was both more toxic to mites, and faster in exerting this toxicity than other tested crude extracts. L. nobilis essential oil concentration leaded to enhance mortality of D. gallinae reaching the highest (100 %) mortality at 12 h with a concentration of 320 mg/mL. While, ethanolic extract acheived this rate after 24 h of exposure at same concentration. Cyclohexanic extract showed weak acaricidal activity.
- Published
- 2021
46. Suggestions on the Contribution of Methyl Eugenol and Eugenol to Bay Laurel (Laurus nobilis L.) Essential Oil Preservative Activity through Radical Scavenging
- Author
-
Nikolaos Nenadis, Maria Z. Tsimidou, and Maria Papapostolou
- Subjects
Preservative ,Antioxidant ,DPPH ,medicine.medical_treatment ,Pharmaceutical Science ,Laurus ,01 natural sciences ,DFT ,Antioxidants ,Gas Chromatography-Mass Spectrometry ,Article ,essential oil ,Analytical Chemistry ,law.invention ,chemistry.chemical_compound ,QD241-441 ,Laurus nobilis ,food ,Methyl eugenol ,law ,Drug Discovery ,Oils, Volatile ,medicine ,Organic chemistry ,food preservatives ,Physical and Theoretical Chemistry ,Scavenging ,bay laurel ,Essential oil ,radical scavenging ,Plant Extracts ,010405 organic chemistry ,Chemistry ,structure-activity relationship ,Organic Chemistry ,methyl eugenol ,Free Radical Scavengers ,food.food ,0104 chemical sciences ,Plant Leaves ,Eugenol ,010404 medicinal & biomolecular chemistry ,Chemistry (miscellaneous) ,Molecular Medicine ,eugenol - Abstract
The present study examined the radical scavenging potential of the two benzene derivatives found in the bay laurel essential oil (EO), namely methyl eugenol (MEug) and eugenol (Eug), theoretically and experimentally to make suggestions on their contribution to the EO preservative activity through such a mechanism. Calculation of appropriate molecular indices widely used to characterize chain-breaking antioxidants was carried out in the gas and liquid phases (n-hexane, n-octanol, methanol, water). Experimental evidence was based on the DPPH• scavenging assay applied to pure compounds and a set of bay laurel EOs chemically characterized with GC-MS/FID. Theoretical calculations suggested that the preservative properties of both compounds could be exerted through a radical scavenging mechanism via hydrogen atom donation. Eug was predicted to be of superior efficiency in line with experimental findings. Pearson correlation and partial least square regression analyses of the EO antioxidant activity values vs. % composition of individual volatiles indicated the positive contribution of both compounds to the radical scavenging activity of bay laurel EOs. Eug, despite its low content in bay laurel EOs, was found to influence the most the radical scavenging activity of the latter.
- Published
- 2021
47. Genetic relationships and diversity analysis in Turkish laurel (Laurus nobilis L.) germplasm using ISSR and SCoT markers
- Author
-
Abdurrahim Yilmaz and Vahdettin Çiftçi
- Subjects
0301 basic medicine ,Germplasm ,Genetic Markers ,Genotype ,Turkey ,Biology ,Laurus ,Analysis of molecular variance ,Mediterranean Basin ,03 medical and health sciences ,0302 clinical medicine ,Laurus nobilis ,food ,Botany ,Genetics ,Allele ,Molecular Biology ,Alleles ,Phylogeny ,Genetic diversity ,UPGMA ,Genetic Variation ,General Medicine ,food.food ,030104 developmental biology ,030220 oncology & carcinogenesis ,Microsatellite Repeats - Abstract
Laurel (Laurus nobilis L.) has been used in the Mediterranean basin since ancient ages. Nowadays, Turkey, Mexico, Portugal, Italy, Spain, France, Algeria, and Morocco use aromatic leaves for commercial purposes, and Turkey is the largest exporter in the world. In this study, molecular characterization, and genetic relationships of 94 Turkish laurel genotypes were determined by ISSR and SCoT markers. The experiment was conducted with 16 ISSR and 10 SCoT markers. While 348 of 373 bands were polymorphic with a 93.3% polymorphism rate, Nei's genetic distances ranged between 0.17 and 0.70 with 0.39 mean in ISSR. In SCoT, 175 of 227 bands were polymorphic with 77.1% polymorphism rate, and Nei's genetic distances varied between 0.12 and 0.51. Sufficient genetic diversity determined with diversity parameters consisting of the average Shannon's information index (ISSR: 0.46, SCoT:0.35), the overall gene diversity (ISSR:0.19, SCoT:0.18), and the effective number of alleles (ISSR:1.52, SCoT:1.38). AMOVA (Analysis of molecular variance) revealed most of the variation was within genotypes (96%). Neighbor-joining algorithms, principal coordinate analysis (PCoA), and model-based structure resulted in harmony and clustered according to the geographical regions and provinces they collected. Genotypes were divided into two groups in ISSR and SCoT with UPGMA clustering resulting in a similar polymorphism distribution. The correlation coefficient (r) determined by marker systems' Nei's genetic distances was 0.25. The results of the study put forward resources for advanced breeding techniques, contribute to the preservation of genetic diversity, and management of genetic resources for the breeders.
- Published
- 2021
48. First records of Xylosandrus compactus (Coleoptera: Curculionidae, Scolytinae) in the Iberian Peninsula: an expanding alien species?
- Author
-
D. Gallego, Josep M Riba-Flinch, Mar Leza, and Universidad de Alicante. Departamento de Ecología
- Subjects
Liquidambar styraciflua ,Girona ,Alien species ,Ambrosia beetle ,Laurus ,Invasive species ,Xyleborini ,Laurus nobilis ,food ,Peninsula ,Liquidambar ,Animals ,Herbivory ,Ecology, Evolution, Behavior and Systematics ,geography ,geography.geographical_feature_category ,biology ,Ecology ,Xylosandrus compactus ,Ambrosia beetles ,Ecología ,biology.organism_classification ,food.food ,Spain ,Curculionidae ,Weevils ,Animal Science and Zoology ,Introduced Species ,Iberian Peninsula - Abstract
Xylosandrus compactus (Eichhoff) (Col.: Curculionidae, Scolytinae) is an ambrosia beetle species native to subtropical Eastern Asia, with great concern due to its high invasive ability. This species has invaded 54 countries worldwide, including 4 European countries (Italy, France, Greece, and Spain); it was detected in Mallorca (Balearic Islands, Spain) in October 2019. In the present work, X. compactus is recorded for the first time in the Iberian Peninsula (Girona province, NE Spain); specimens were collected in Banyoles (August 2020, attacking twigs of Laurus nobilis and Liquidambar styraciflua) and Platja d’Aro (October 2020, attacking twigs of L. nobilis). Up-to-date information is presented about its geographical distribution, host plants, biology, symptoms, associate damages, and the possible origin of this species in Europe.
- Published
- 2021
49. Ladon, Laurus... e la nave Va. Mart. 10.85-86, en contexto
- Author
-
Alberto Marina Castillo
- Subjects
Martial ,Literature and Literary Theory ,Dioses-río ,River-gods ,5505.10 Filología ,Marcial ,Ladón ,Laurus ,Ladon ,Metáforas náuticas ,Nautical metaphors ,Classics ,Epigram ,Epigrama ,Lauro - Abstract
La figura de Ladón en Marcial (10.85) cobra relieve en virtud de las circunstancias del poeta y las peripecias editoriales del libro décimo, más aún al considerar su relación con Lauro (10.86). A raíz de la equivalencia de laurus y δάφνη, se descubre un haz de correspondencias mitológicas y textuales que dotan al díptico de una entidad inadvertida. Sus nombres vinculan a los protagonistas con figuras como el dios-río Ladón y su hija - en algunas versiones - Dafne, Evandro - nieto de Ladón - y sus huéspedes Heracles y Eneas. Con el héroe vencedor del dragón homónimo se relaciona el ritual de los argei, figuras antropomorfas arrojadas al Tíber que cabe comparar con el Lauro reducido a pelele., The character of Ladon (Mart. 10.85) stands out in light of the poet’s circumstances and the publishing vicissitudes of the tenth book of Epigrams. This significance is even greater when we consider the relationship of Ladon with Lauro (10.86). The synonymy of Lat. laurus and Gr. δάφνη reveals a set of mythological and intertextual correspondences that confers on this diptych an unnoticed prominence. Proper names connect the two characters to the river-god Ladon and his -according to some versions- daughter Daphne, to Evander -Ladon’s grandson- and his hosts Herakles and Aeneas. Related to Herakles, the hero who annihilates the dragon, also named Ladon, is the ritual of the argei, anthropomorphic figures thrown into the Tiber that are here compared with Lauro as a pila.
- Published
- 2021
- Full Text
- View/download PDF
50. Study of the Antihypertensive Effect of Laurus nobilis in Rats.
- Author
-
Bouadid I, Amssayef A, and Eddouks M
- Subjects
- Rats, Animals, Antihypertensive Agents pharmacology, Antihypertensive Agents therapeutic use, Plant Extracts pharmacology, Plant Extracts therapeutic use, Calcium, Vasodilator Agents pharmacology, Laurus, Hypertension drug therapy
- Abstract
Aims: The study aimed to study the antihypertensive activity of Laurus nobilis., Background: Laurus nobilis L. is used to treat hypertension in Morocco., Objective: The study was designed to investigate the effect of the aqueous extract leaves of Laurus nobilis (AELN) on blood pressure., Materials and Methods: The antihypertensive and vasorelaxant activities of AELN were pharmacologically investigated in normotensive and L-NAME-induced hypertensive rats. Thereafter, blood pressure was evaluated, and the ex-vivo vasorelaxant activity of this extract was performed., Results: A considerable decrease in blood pressure parameters were observed in L-NAMEinduced hypertensive rats treated with AELN. The extract induced a vasorelaxant effect on the aorta precontracted with epinephrine or KCl by inhibiting extracellular Ca2+ entry., Conclusion: The study demonstrates that Laurus nobilis aqueous extract exhibits potent antihypertensive and vasorelaxant activities via inhibiting Ca2+ entry., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2023
- Full Text
- View/download PDF
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