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242 results on '"Bertoli, Alessandra"'

5. Complexing the Marine Sesquiterpene Euplotin C by Means of Cyclodextrin-Based Nanosponges: A Preliminary Investigation

Author

Bertoli, Alessandra, primary, LoBue, Anthea, additional, Quattrini, Luca, additional, Sartini, Stefania, additional, Polini, Beatrice, additional, Carpi, Sara, additional, Frontini, Francesco Paolo, additional, Di Giuseppe, Graziano, additional, Guella, Graziano, additional, Nieri, Paola, additional, and La Motta, Concettina, additional

Published
2022
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14. Lavender aromatherapy: A systematic review from essential oil quality and administration methods to cognitive enhancing effects.

Author

Malloggi, Eleonora, Menicucci, Danilo, Cesari, Valentina, Frumento, Sergio, Gemignani, Angelo, and Bertoli, Alessandra

Subjects
ESSENTIAL oils, AROMATHERAPY, LAVENDERS, COGNITIVE ability, VEGETABLE oils
Abstract

Modern society is reviving the practice of aromatherapy, and lavender is reported being the most worldwide purchased plant for essential oil (EO) extraction. Since recent studies reported cognitive enhancing effects of lavender besides the hypno‐inducing effects, a literature review is needed. Considering EO quality and diffusion devices, we conducted a systematic review on the effects of lavender EO inhalation on arousal, attention and memory in healthy subjects. Starting from this new multidisciplinary perspective, cognitive effects were reviewed to link outcomes to effective and reproducible protocols. A systematic search on MEDLINE, ERIC, PsycInfo, Google Scholar, and Scopus databases using Cognitive Atlas and plant‐related keywords was conducted. Among the 1,203 articles yielded, 11 met eligibility criteria. Subjects administered with lavender EO displayed arousal decrease and sustained attention increase. Controversial results emerged regarding memory. Lack of EO quality assessment and protocols heterogeneity did not allow assessing whether different EO composition differentially modulates cognition and whether placebo effect can be discerned from EO effect itself. However, GABAergic pathway modulation exerted by linalool, a major lavender EO constituent, might explain cognitive functions empowerment. We speculate aromatherapy could be a burgeoning cognition enhancing tool, although further investigation is required to reach robust conclusions. [ABSTRACT FROM AUTHOR]

Published
2022
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23. Biological Effects of Saponin Fractions from Astragalus verrucosus in Tumor and Non-tumor Human cells

Author

Facioni, Maria Sole, primary, Soares, Joana, additional, Adinolfi, Barabara, additional, Gomes, Sara, additional, Raimundo, Liliana, additional, Contini, Adele, additional, Ruffoni, Barbara, additional, Azzarà, Alessia, additional, Tavanti, Arianna, additional, Bertoli, Alessandra, additional, Pistelli, Luisa, additional, Saraiva, Lucilia, additional, and Scarpato, Roberto, additional

Published
2018
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27. Laccase-Nafion Based Biosensor for the Determination of Polyphenolic Secondary Metabolites

Author

Litescu, Simona, Eremia, Sandra, Bertoli, Alessandra, Pistelli, Luisa, Radu, and Gabriel, Lucian

Subjects
Detection limit, Chromatography, Rosmarinic acid, Biochemistry (medical), Clinical Biochemistry, Biochemistry, Michaelis–Menten kinetics, Analytical Chemistry, chemistry.chemical_compound, chemistry, Chlorogenic acid, Nafion, Electrochemistry, Caffeic acid, Gallic acid, Biosensor, Spectroscopy
Abstract

A laccase-based biosensor was developed by specific enzyme adsorption on screen-printed working electrodes of DROPSENS cells, and stabilized with Nafion 0.1% membrane. The electrode was characterized with respect to response time, sensitivity, linear range, detection limit, pH dependence, interferences, and long-term stability. The tested substrates were catechol, rosmarinic acid, caffeic acid, chlorogenic acid, and gallic acid. The optimized biosensor proved the following characteristic performances: the apparent Michaelis Menten calculated considering rosmarinic acid substrate 8.3 × 10−6 mol L−1 (r = 0.995, n = 6); the dynamic range of biosensor response for rosmarinic acid 7 × 10−7 − 1.5 × 10−6 mol L−1; the detection limit for rosmarinic acid 1.19 × 10−7 mol L−1 (RSD = 1.08%, n = 3). It was noticed that the biosensor reaches systematically 90% to 94.3% from the response obtained by LC-DAD-ESI-MS for real samples.

Published
2010

28. Flavonoids isolated fromMedicago littoralisRhode (Fabaceae): their ecological and chemosystematic significance

Author

Daniela Ciccarelli, Bertoli Alessandra, Luisa Pistelli, and Fabio Garbari

Subjects
chemistry.chemical_classification, Medicago, biology, Ecology, Plant composition, Fabaceae, biology.organism_classification, Flavones, Biochanin A, chemistry.chemical_compound, chemistry, Medicago littoralis, Phytochemical, Botany, Genetics, General Agricultural and Biological Sciences
Abstract

Three fl avonoids, laricitrin 3,5'-di-O-β-glucopyranoside (1), genistein 7-O-β-glucopyranoside (2), and biochanin A 7-O-β-glucopyranoside (= sissotrin) (3), were isolated for the fi rst time from the aerial parts of Medicago littoralis Rhode. The structures of the isolated compounds were established by NMR and LC- DAD-ESI-MS analyses. The chemosystematic of fland isofl avones identifi ed was useful for discriminat- ing different taxa inside the section Spirocarpos. In addition, the phytochemical profi le of M. littoralis showed a behaviour due to the ecological conditions of sandy dunes, where this plant normally grows.

Published
2010

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