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article

English Sunday lunch dermatitis: Allergic contact dermatitis to parsnip, carrot, fennel (and ivy)

Jonathan M. L. White, Andrew E. Pink

Contact Dermatitis > 83 > 4 > 317 - 318

article

Dominance of individual plant species is more important than diversity in explaining plant biomass in the forest understorey

Safaa Wasof, Jonathan Lenoir, Tarek Hattab, Aurélien Jamoneau, more

Journal of Vegetation Science > 29 > 3 > 521 - 531

Questions How does plant community diversity influence variation in plant biomass? There are two competing hypotheses: the ‘biomass ratio’ hypothesis, where biomass is influenced by the abundance and traits of the most dominant species, and the ‘diversity’ hypothesis, where the diversity of organisms influences biomass through mechanisms such as niche complementarity. However, no studies have tested...

article

Pharmacokinetic parameters of three active ingredients hederacoside C, hederacoside D, and ɑ‐hederin in Hedera helix in rats

Miao Yu, Jiaxin Liu, Lin Li, Haiyan Xu, more

Journal of Separation Science > 39 > 17 > 3292 - 3301

In Hedera helix hederacoside C, hederacoside D, and ɑ‐hederin are three major bioactive saponins and play pivotal roles in the overall biological activity. In this study, a specific and sensitive ultra‐high performance liquid chromatography with tandem mass spectrometry method has been developed and validated for the quantification of three major bioactive saponins in rat plasma. Chromatographic separation...

article

Bronchipret® syrup containing thyme and ivy extracts suppresses bronchoalveolar inflammation and goblet cell hyperplasia in experimental bronchoalveolitis

Jan Seibel, Carlo Pergola, Oliver Werz, Kirill Kryshen, more

Phytomedicine > 2015 > 22 > 13 > 1172-1177

Acute bronchitis (AB) is a common lung condition characterized by inflammation of the large bronchi in response to infection. Bronchipret^® syrup (BRO), a fixed combination of thyme and ivy extracts has been effectively used for the treatment of AB. Combining in vivo and mechanistic in vitro studies we aimed to provide a better understanding of the therapeutic potential of BRO on key aspects of AB...

article

Elimination du zinc par les cosses de petits pois (Pisum sativum) et les feuilles de lierre (Hedera helix L) Elimination of zinc by peapods (Pisum sativum) and ivy leaves (Hedera helix L)

Sabah Menia, Noureddine Azzouz, Samuel El Maleh

The Canadian Journal of Chemical Engineering > 93 > 12 > 2190 - 2197

The pollution of surface and ground water by heavy metals is a major problem for the environment ; therefore, it is necessary to eliminate these toxic substances. There are many methods to remove these pollutants, such as adsorption, chemical precipitation, and membrane filtration.In our study, zinc is adsorbed on peapods and ivy leaves. Contact time is 30 min for the two adsorbents, and optimal pH...

article

Protecting Gram-negative bacterial cell envelopes from human lysozyme: Interactions with Ivy inhibitor proteins from Escherichia coli and Pseudomonas aeruginosa

Zhihong Liu, Beatriz García-Díaz, Bruno Catacchio, Emilia Chiancone, more

BBA - Biomembranes > 2015 > 1848 > 11 Part B > 3032-3046

Lysozymes play an important role in host defense by degrading peptidoglycan in the cell envelopes of pathogenic bacteria. Several Gram-negative bacteria can evade this mechanism by producing periplasmic proteins that inhibit the enzymatic activity of lysozyme. The Escherichia coli inhibitor of vertebrate lysozyme, Ivyc and its Pseudomonas aeruginosa homolog, Ivyp1 have been shown to be potent inhibitors...

article

Reusing models and properties in the analysis of similar interactive devices

Michael D. Harrison, José Creissac Campos, Paolo Masci

Innovations in Systems and Software Engineering > 2015 > 11 > 2 > 95-111

The paper is concerned with the comparative analysis of interactive devices. It compares two devices by checking systematically a set of template properties that are designed to explore important interface characteristics. The two devices are designed to support similar tasks in a clinical setting. The devices differ as a result of judgements based on a range of considerations including software....

article

Harvard University: polityka przyjęć na studia i regulowanie dynamiki dostępu

Agnieszka Gromkowska-Melosik

Przegląd Pedagogiczny > 2015 > 1 > 9-18

W niniejszym tekście podejmuję próbę rekonstrukcji kryteriów przyjmowania do Harvard University w perspektywie historycznej. W sposób szczególny interesuje mnie ewolucja mechanizmu zamykania/otwierania dostępu do studiowania w tej placówce edukacji wyższej dla różnych grup społecznych. Historia regulowania dostępu do tego uniwersytetu stanowi przy tym, jak jestem o tym przekonana, znakomitą egzemplifikację...

article

Effectiveness of an ivy covering at insulating a building against the cold in Manchester, U.K: A preliminary investigation

C. Bolton, M.A. Rahman, D. Armson, A.R. Ennos

Building and Environment > 2014 > 80 > Complete > 32-35

It is well known that living walls can reduce air conditioning demands on buildings during hot sunny weather, but little is known about their effectiveness at insulating buildings during cold weather. In this study we investigated the insulating effectiveness of a coating of English ivy Hedera helix covering the North wall of a solid brick-walled building in Manchester, U.K. in late winter 2012. Internal...

article

The haploinsufficiency profile of α-hederin suggests a caspofungin-like antifungal mode of action

Thomas A.K. Prescott, Luke P. Rigby, Nigel C. Veitch, Monique S.J. Simmonds

Phytochemistry > 2014 > 101 > Complete > 116-120

The leaves of common ivy (Hedera helix) contain the cytotoxic saponin α-hederin, which is inhibitory to Candida albicans at low concentrations. To investigate the mode of action of α-hederin, a haploinsufficiency screen was carried out using a library of 1152 Saccharomyces cerevisiae deletion strains. An ethanol ivy extract containing α-hederin was used in the initial screen to reduce the amount of...

article

Enzyme characterisation and gene expression profiling of Atlantic salmon chicken- and goose-type lysozymes

Bjørnar Myrnes, Marit Seppola, Audny Johansen, Kersti Øverbø, more

Developmental and Comparative Immunology > 2013 > 40 > 1 > 11-19

Lysozymes represent important innate immune components against bacteria. In this study, Atlantic salmon (Salmo salar) goose (g-) and chicken (c-) types of lysozyme were subjected to protein characterisations and tissue expression analyses. Specific bacterial protein inhibitors of g- and c-type lysozymes were employed to discriminate between respective enzyme activities. Blood, gills and liver contained...

article

Engineering Escherichia coli for soluble expression and single step purification of active human lysozyme

John W. Lamppa, Sam A. Tanyos, Karl E. Griswold

Journal of Biotechnology > 2013 > 164 > 1 > 1-8

Genetically engineered variants of human lysozyme represent promising leads in the battle against drug-resistant bacterial pathogens, but early stage development and testing of novel lysozyme variants is constrained by the lack of a robust, scalable and facile expression system. While wild type human lysozyme is reportedly produced at 50–80kg per hectare of land in recombinant rice, this plant-based...

article

Suitability of Ivy Extract for the Treatment of Paediatric Cough

M. Schmidt, M. Thomsen, U. Schmidt

Phytotherapy Research > 26 > 12 > 1942 - 1947

Two galenical formulations of an ivy herbal extract, syrup and cough drops, were tested for their efficacy and safety in the paediatric treatment of cough and bronchitis in two independent open, non‐interventional studies with identical design. Two‐hundred and sixty‐eight children aged 0–12 yr were treated with one of the two preparations for up to 14 days. The effects on cough‐related symptoms were...

article

Acute bronchitis therapy with ivy leaves extracts in a two-arm study. A double-blind, randomised study vs. an other ivy leaves extract

Ute Cwientzek, Bertram Ottillinger, Petr Arenberger

Phytomedicine > 2011 > 18 > 13 > 1105-1109

Ivy leaves extracts are authorised in medicinal products for the treatment of acute bronchitis. Different studies and the long experience on the market show safety and efficacy of this drug. A double-blind, randomised study was conducted to assess the efficacy and tolerability of ivy leaves soft extract with an other ivy leaves extract. 590 patients with acute bronchitis participated in this study...

article

Evaluating the role of ivy (Hedera helix) in moderating wall surface microclimates and contributing to the bioprotection of historic buildings

Troy Sternberg, Heather Viles, Alan Cathersides

Building and Environment > 2011 > 46 > 2 > 293-297

The role of ivy (Hedera helix L.) on building walls is much debated, with arguments being put forward for it playing a biodeteriorative role (for example through ivy rootlets exploiting cracks and holes) as well as suggestions that it might provide some bioprotection (for example by the ivy canopy protecting the walls from other agents of deterioration such as frost). We have carried out a year-long...

article

Pre-treatment with α-hederin increases β-adrenoceptor mediated relaxation of airway smooth muscle

Anne Wolf, Reinoud Gosens, Herman Meurs, Hanns Häberlein

Phytomedicine > 2011 > 18 > 2-3 > 214-218

Preparations of ivy leaves dry extract with secretolytic and bronchiolytic efficacy are widely used for the treatment of acute and chronic obstructive airway diseases. The mechanism by which ivy preparations improve lung functions is not fully understood. Here, we tested the influence of the three main saponins of ivy, α-hederin, hederacoside C and hederagenin, on the contraction and relaxation behaviour...

article

Characterization of English ivy (Hedera helix) adhesion force and imaging using atomic force microscopy

Lijin Xia, Scott C. Lenaghan, Mingjun Zhang, Yu Wu, more

Journal of Nanoparticle Research > 2011 > 13 > 3 > 1029-1037

English ivy (Hedera helix) is well known for its ability to climb onto and strongly adhere to a variety of solid substrates. It has been discovered that the ivy aerial rootlet secretes an adhesive composed of polysaccharide and spherical nanoparticles. This study aims to characterize the mechanical properties of the nanocomposite adhesive using atomic force microscopy (AFM). The adhesive was first...

article

Dust particulate absorption by ivy (Hedera helix L) on historic walls in urban environments

Troy Sternberg, Heather Viles, Alan Cathersides, Mona Edwards

Science of the Total Environment > 2010 > 409 > 1 > 162-168

The potential bio-protective role of urban greenery and how it interacts with airborne dust and pollutants has been the subject of much recent research. As particulate pollution has been implicated in both the deterioration of building materials and in damaging human health, understanding how it interacts with urban greenery is of great applied interest. Common or English Ivy (Hedera helix L) grows...

article

Pnącza na wysokie ściany

J. Borowski

Zieleń Miejska > 2010 > Nr 2 > 28-31

Elewacje wysokich budynków pokrywane są najczęściej pnączami samoczepnymi, czyli takimi, które do wspinania się nie potrzebują specjalnych konstrukcji.

article

Wood anatomy of ivy-hosting black alder (Alnus glutinosa Gaertn.)

B Yaman

Dendrobiology > 2009 > 62 > 41-45

The study aims at investigating the impact of ivy (Hedera helix L.) on the growth and on some wood anatomical characteristics of black alder trees. Ivy-hosting and non-hosting black alder have a similar wood anatomy in terms of qualitative properties. However, in ivy-hosting trees tangential and radial diameter of vessels are narrower (p <0.001), and inter-vessel pits are smaller (p <0.01),...

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Search results

English Sunday lunch dermatitis: Allergic contact dermatitis to parsnip, carrot, fennel (and ivy)

Dominance of individual plant species is more important than diversity in explaining plant biomass in the forest understorey

Pharmacokinetic parameters of three active ingredients hederacoside C, hederacoside D, and ɑ‐hederin in Hedera helix in rats

Bronchipret® syrup containing thyme and ivy extracts suppresses bronchoalveolar inflammation and goblet cell hyperplasia in experimental bronchoalveolitis

Elimination du zinc par les cosses de petits pois (Pisum sativum) et les feuilles de lierre (Hedera helix L) Elimination of zinc by peapods (Pisum sativum) and ivy leaves (Hedera helix L)

Protecting Gram-negative bacterial cell envelopes from human lysozyme: Interactions with Ivy inhibitor proteins from Escherichia coli and Pseudomonas aeruginosa

Reusing models and properties in the analysis of similar interactive devices

Harvard University: polityka przyjęć na studia i regulowanie dynamiki dostępu

Effectiveness of an ivy covering at insulating a building against the cold in Manchester, U.K: A preliminary investigation

The haploinsufficiency profile of α-hederin suggests a caspofungin-like antifungal mode of action

Enzyme characterisation and gene expression profiling of Atlantic salmon chicken- and goose-type lysozymes

Engineering Escherichia coli for soluble expression and single step purification of active human lysozyme

Suitability of Ivy Extract for the Treatment of Paediatric Cough

Acute bronchitis therapy with ivy leaves extracts in a two-arm study. A double-blind, randomised study vs. an other ivy leaves extract

Evaluating the role of ivy (Hedera helix) in moderating wall surface microclimates and contributing to the bioprotection of historic buildings

Pre-treatment with α-hederin increases β-adrenoceptor mediated relaxation of airway smooth muscle

Characterization of English ivy (Hedera helix) adhesion force and imaging using atomic force microscopy

Dust particulate absorption by ivy (Hedera helix L) on historic walls in urban environments

Pnącza na wysokie ściany

Wood anatomy of ivy-hosting black alder (Alnus glutinosa Gaertn.)

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