Results 111 to 120 of about 42,056 (278)

Absorption and Effects of Patch Test Preparations of Hydroperoxides of Limonene and Hydroperoxides of Linalool in Human Ex Vivo Skin

Contact Dermatitis, EarlyView.
This study mimics clinical patch testing for the diagnosis of allergic contact dermatitis, by application of patch test preparations of fragrance terpenes to ex vivo human skin samples. The study investigates the penetration of linalool hydroperoxide and limonene hydroperoxide in skin, alongside an analysis of the lipid‐modifying effects of the patch ...
Aoife Clancy, Lina Hagvall, Per Malmberg, Niamh M. O'Boyle   +3 more
wiley   +1 more source

Contact Sensitisation Trends in Slovenian Children and Adolescents: A Retrospective Single‐Centre Study

Contact Dermatitis, EarlyView.
Nickel sensitisation in children decreased significantly over time, while dyes and isothiazolinones are emerging allergens. These findings underscore shifting exposure patterns and the need for continuous surveillance to guide effective patch testing and prevention strategies.
Mateja Starbek Zorko, Tomaž Lunder, Thomas Peric   +2 more
wiley   +1 more source

Hydroformylation of Limonene

Journal of Japan Oil Chemists' Society, 1973
Hydroformylation of limonene has been studied using cobalt carbonyl and rhodium carbonyl catalysts under “oxo reaction” conditions. The aimed β- (4-methyl-Δ3-cyclohexenyl) -butylaldehyde was obtained with theoretical yields of 42 and 52% based on limonene by using bis- (cobalt tricarbonyl tributylphosphine) complex and rhodium carbonyl catalysts ...
KOGAMI, Kunio, TAKAHASHI, Osamu, YANAI, Tetzuya, KUMANOTANI, Ju   +3 more
openaire   +2 more sources

Patch Test Results With Additions to the European Baseline Series, 2021/22—Joint European Results of the ESSCAA and the EBSB Working Groups of the ESCD, and the GEIDACC

Contact Dermatitis, EarlyView.
ABSTRACT Background Allergens are periodically added to the European Baseline Series (EBS) to audit their value in consecutive patch testing. Objectives To present results of audit allergens tested in consecutive patients in 54 departments in 13 European countries during 2021 and 2022.
Wolfgang Uter, Stephen Mark Wilkinson, Andrea Bauer, Leopoldo Borrego, Richard Brans, Timo Buhl, Heinrich Dickel, Rosella Gallo, Ana Giménez Arnau, Margarida Gonçalo, Dimitra Koumaki, Alexander A. Navarini, Cataldo Patruno, Györgyi Pónyai, Thomas Rustemeyer, Radoslaw Spiewak, Luca Stingeni, Skaidra Valiukevičienė, Marie‐L. A. Schuttelaar, Olivier Aerts, the ESSCA, EBS, ESCD working groups, the GEIDAC, Birger Kränke, Ella Dendooven, Dagmar Simon, Philip Spring, Ulrike Beiteke, Cecilia Dietrich, Sibylle Schliemann, Detlef Becker, Swen Malte John, Nicola Wagner, Elke Weisshaar, Stamatis Gregoriou, Maddalena Napolitano, Philippa Cousen, Graham A. Johnston, Juan Francisco Silvestre Salvador, José Manuel Carrascosa Carrillo, Mónica Munera Campos, Esther Serra Baldrich, Gemma Melé‐Ninot, Cristina Barrabés Torrella, David Pesqué, Ana María Giménez Arnau, María Antonia Pastor Nieto, Francisco Navarro Triviño, Leopoldo Borrego, Inmaculada Ruiz Gonzales, Enrique Gómez de la Fuente, Susana Córdoba Guijarro, Francisco Javier Ortiz de Frutos, Fátima Tous Romero, Tatiana Sanz Sánchez, Pablo Chicharro Manso, Marta Andreu Barasoain, Marta Elosua González, Araceli Sánchez Gilo, Paloma Sánchez‐Pedreño Guillén, Pedro Mercader‐García, Carmen Paredes Suárez, María Elena Gatica Ortega, José Juan Pereyra Rodríguez, Javier Miquel Miquel, Mercedes Rodríguez Serna, Violeta Zaragoza Ninet, Ricardo González Pérez   +68 more
wiley   +1 more source

Epidemiological, Clinical and Allergic Profile of Patients With Dyshidrotic Eczema (Acute and Recurrent Vesicular Dermatitis): Evaluation of the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy (REIDAC)

Contact Dermatitis, EarlyView.
In this exploratory analysis, dyshidrotic eczema demonstrated a distinct sensitisation pattern compared with non‐dyshidrotic hand eczema. The lower proportion of clinically relevant reactions amongst positive patch tests suggests a multi‐factorial and not exclusively allergic background.
Araceli Sánchez‐Gilo, Enrique Gómez de la Fuente, Ana M. Giménez‐Arnau, Juan Francisco Silvestre‐Salvador, Pedro Mercader‐García, Tatiana Sanz‐Sánchez, Violeta Zaragoza‐Ninet, Susana Córdoba‐Guijarro, Javier Miquel‐Miquel, Ricardo González‐Pérez, Inmaculada Ruiz‐Gonzalez, Esther Serra‐Baldrich, José Manuel Carrascosa‐Carrillo, Francisco Javier Ortiz de Frutos, Mercedes Rodríguez‐Serna, María Elena Gatica‐Ortega, Carmen Paredes‐Suárez, Francisco J. Navarro‐Triviño, Pablo Chicharro, María Antonia Pastor‐Nieto, Marta Andreu Barasoain, José‐Juan Pereyra‐Rodríguez, Gemma Melé‐Ninot, Paloma Sánchez‐Pedreño Guillén, Marta Elosua‐González, Miguel Ángel Descalzo, Ignacio García‐Doval, Raquel Barba‐Martín, Leopoldo Borrego   +28 more
wiley   +1 more source

Significantly Different Prevalences of Contact Allergy to Hydroperoxides of Linalool and Limonene When Patch Testing With Different Patch Test Chambers

Contact Dermatitis, EarlyView.
Finn Chamber AQUA (FCA) detects significantly higher contact allergy prevalences to linalool hydroperoxides (7.0% vs. 5.1% FC) and limonene hydroperoxides (7.8% vs. 3.0% FC, 3.8% IQ) than Finn Chamber (FC) or IQ Ultra (IQ) in 629 dermatitis patients; chamber choice is therefore crucial for diagnostics.
Henrik Luu, Thanisorn Sukakul, Magnus Bruze, Martin Mowitz, Cecilia Svedman   +4 more
wiley   +1 more source

Green Extraction of Citrus sinensis (L.) Osbeck Peel Essential Oil and Its Impact on Antioxidant and Antimicrobial Activity: Supported by Molecular Docking and DFT Analysis [PDF]

Food Sci Nutr
Superheated steam extraction of Citrus sinensis peel essential oil produced the highest yield and enhanced antioxidant and antimicrobial activities compared with conventional methods. GC–MS identified d‐limonene as the major compound, while molecular docking and DFT analyses confirmed strong bioactive interactions and highlighted β‐terpinyl acetate as ...
Nadeem N, Ibrahim A, Ayub M, Mammadova K, Ijaz M, Habib M, Ramadan M, Choobkar N.   +7 more
europepmc   +2 more sources

Constitutive and inducible oleoresin defenses share genetic architectures and mechanisms in Pinus taeda. [PDF]

New Phytol
Summary The oleoresin defense system of loblolly pine (Pinus taeda) protects trees from insects and pathogens and is an important source of renewable biofuels and chemicals, but the genetic basis of oleoresin production is poorly understood. We characterized the genetic architecture of oleoresin flow, resin canal number, stem wood terpene content, and ...
Morgan MM, Westbrook J, Dervinis C, Quesada T, Gezan S, Sykes R, Johnson TS, Madrid G, Lane M, Townsend A, Colquhoun TA, Davis JM, Jacobson D, Peter GF.   +13 more
europepmc   +2 more sources

Mapping of Former Strategies and Future Needs for Regulatory Prevention of Skin Sensitization: Cosmetic Products

Contact Dermatitis, EarlyView.
This study identified multiple areas for improvement in the regulatory risk assessment process. Conclusions based on predictive sensitization data should be made with caution, read‐across data from known sensitizers should be utilized, and epidemiological and patient threshold data should be prioritized in decision‐making.
Mathias Krogh Pedersen, Jakob Ferløv Baselius Schwensen, Jose Hernán Alfonso, Steen Mollerup, Gianluca Selvestrel, Christina Rudén, Martin F. Wilks, Jeanne Duus Johansen   +7 more
wiley   +1 more source

A novel cyclization product from the polyphosphoric acid catalyzed addition of propanal to limonene

, 1991
The polyphosphoric acid catalyzed addition of propanal to limonene yielded a novel bicyclic ether 2,2,6-trimethyl-4-ethyl-3-oxabicyclo[3.3.1]non-6-ene (I).
Lassak, Erich V., Chandra, Vinesh
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