Modifications of hydrophobicity, in vitro adherence and cellular aggregation of Streptococcus mutans by Helichrysum italicum extract

Nostro, Antonia; Cannatelli, M.A.; Crisafi, Giuseppe; Musolino, A.D.; Procopio, F.; Alonzo, V.

doi:10.1111/j.1472-765x.2004.01509.x

Cited by 128 publications

(83 citation statements)

References 30 publications

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“…Streptococcus mutans (Nostro et al, 2004), one of the main microorganisms responsible for dental caries (Giacaman et al, 2010). Sub-MIC concentrations of the ethanolic extract reduced the cell-surface hydrophobicity, cellular aggregation and adherence of S. mutans.…”

Section: Moreover H Italicum Ethanolic Extract Inhibited the Growthmentioning

confidence: 99%

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Helichrysum italicum: From traditional use to scientific data

Viegas¹,

Palmeira‐de‐Oliveira²,

Salgueiro³

et al. 2014

Journal of Ethnopharmacology

139

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Ethnopharmacological relevanceHelichrysum italicum (Roth) G. Don fil. (family Asteraceae) has been used for its medicinal properties for a long time and, even nowadays, continues to play an important role in the traditional medicine of Mediterranean countries. Based on this traditional knowledge, its different pharmacological activities have been the focus of active research. Aim of the reviewTo provide an overview of the current state of knowledge of the pharmacological activities of H. italicum, as well as its traditional uses, toxicity, drug interactions and safety. Materials and methodsThe selection of relevant data was made through a search using the keywords "Helichrysum italicum" and "H. italicum" in "Directory of Open Access Journals", "Google Scholar", "ISI Web of Knowledge", "PubMed", "ScienceDirect" and "Wiley Online Library". Information obtained in local and foreign books and other sources was also included. ResultsThere are reports on the traditional use of H. italicum in European countries, particularly Italy, Spain, Portugal and Bosnia and Herzegovina. In these countries, its flowers and leaves are the most used parts in the treatment of health disorders such as allergies, colds, cough, skin, liver and gallbladder disorders, inflammation, infections and sleeplessness. In order to validate some of the traditional uses of H. italicum italicum in vivo activity, the highlight goes to the anti-erythematous and photoprotective activities of its flavonoids, demonstrated both in animals and humans, and to the anti-inflammatory properties exhibited by its flavonoids, acetophenones and phloroglucinols, as seen in animal models. Concerning its safety and adverse effects, while H. italicum does not display significant levels of cytotoxicity or genotoxicity, it should be noticed that one of its flavonoids inhibited some CYP isoforms and a case has been reported of an allergic reaction to its extracts. Aim of the reviewTo provide an overview of the current state of knowledge of the pharmacological activities of H. italicum, as well as its traditional uses, toxicity, drug interactions and safety. Materials and methodsThe selection of relevant data was made through a search using the keywords "Helichrysum italicum" and "H. italicum" in "Directory of Open Access Journals", "Google Scholar", "ISI Web of Knowledge", "PubMed", "ScienceDirect" and "Wiley Online Library". Information obtained in local and foreign books and other sources was also included. ResultsThere are reports on the traditional use of H. italicum in European countries, particularly Italy, Spain, Portugal and Bosnia and Herzegovina. In these countries, its flowers and leaves are the most used parts in the treatment of health disorders such as allergies, colds, cough, skin, liver and gallbladder disorders, italicum in vivo activity, the highlight goes to the anti-erythematous and photoprotective activities of its flavonoids, demonstrated both in animals and humans, and to the anti-inflammatory properties exhibited by its flavonoids, acet...

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Section: Moreover H Italicum Ethanolic Extract Inhibited the Growthmentioning

confidence: 99%

“…Micrococcus luteus Methanol 50 Pg.mL -1 (Tundis et al, 2005) Staphylococcus aureus Essential oil 5 PL.mL -1 (Mastelic et al, 2005) Diethyl ether 125-500 Pg.mL -1 (Nostro et al, 2001) Streptococcus mutans Ethanol 62.50 Pg.mL -1 (Nostro et al, 2004) …”

mentioning

confidence: 99%

Helichrysum italicum: From traditional use to scientific data

Viegas¹,

Palmeira‐de‐Oliveira²,

Salgueiro³

et al. 2014

Journal of Ethnopharmacology

139

View full text Add to dashboard Cite

show abstract

“…Natural products have been used as folk medicine for thousands of years and are promising sources for novel therapeutic agents 18) . They have been the focus of several recent studies potential materials in the prevention of oral diseases, particularly plaquerelated diseases, such as dental caries [19][20][21] . A previous study using hesperidin (HPN), a citrus flavonoid, showed that HPN preserved bovine dentin collagen against proteolytic degradation 22) .…”

Section: Intorductionmentioning

confidence: 99%

<I>In vitro</I> effect of hesperidin on root dentin collagen and de/re-mineralization

et al. 2012

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The aims of this study were to investigate the effects of hesperidin, a citrus flavonoid, on human root dentin demineralization and collagen preservation, and compare it with chlorhexidine and grape seed extract. Specimens were assigned to different treatment groups: hesperidin, chlorhexidine and grape seed extract. Specimens were subjected to pH cycling by demineralization for 14 h, incubation in testing solutions for 2 h and remineralization in presence of bacterial-derived collagenase for 8 h, for 8 days. Calcium release was measured by means of an atomic absorption spectrophotometer, and degraded collagen matrix was investigated by hydroxyproline assay. Specimens were assessed longitudinally with transverse micro-radiography to investigate lesion depth and mineral loss. In hesperidin and grape seed extract groups, demineralization was reduced when the collagen matrix was preserved. The hesperidin group showed the lowest value in lesion depth and mineral loss, indicating that hesperidin inhibited demineralization and probably enhanced remineralization even under fluoride-free conditions.

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“…The ornamental value conferred by its distinctive yellow scented flowers, and the properties of its essential oils contribute to its popularity. Many researchers have pointed out the anti-inflammatory, anti-histamine, antimicrobial and anti-viral properties of these essential oils, which are employed in various industrial sectors [14][15][16][17][18]. The scarce availability of cultivated materials, lack of agronomic practices and extreme variability of spontaneous ecotypes justify the application of in vitro cultures to set up a platform for rapid multiplication in this plant species.…”

Section: Introductionmentioning

confidence: 99%

An evaluation of a new approach to the regeneration of Helichrysum italicum (Roth) G. Don, and the molecular characterization of the variation among sets of differently derived regenerants

Perrini

Alba

Ruta

et al. 2009

Cellular and Molecular Biology Letters

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A protocol for the induction of regeneration from leaves of Helichrysum italicum was established. Calli were found to form on the basal medium only when it was supplemented with thidiazuron (TDZ) alone or in combination with naphthalene acetic acid (NAA), with a percentage ranking of at least 80%. The hormone-free medium showed the highest percentage of shoot regeneration (62%) even though no callus formed. AFLP markers were employed to verify tissue culture-induced variation in the regenerated plantlets obtained by direct shoot regeneration or the indirect shoot regeneration process (callus formation). Seven out of the eleven AFLP primer pairs yielded polymorphic patterns. The average number of fragments per primer pair was 64.1. Singletons were represented by 12 (2.7%) fragments. Student’s T-test was performed both on the average number of shared fragments and on the nucleotide diversity, and no significant statistical difference was observed between the two regeneration treatments.

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Modifications of hydrophobicity, in vitro adherence and cellular aggregation of Streptococcus mutans by Helichrysum italicum extract

Cited by 128 publications

References 30 publications

Helichrysum italicum: From traditional use to scientific data

Helichrysum italicum: From traditional use to scientific data

<I>In vitro</I> effect of hesperidin on root dentin collagen and de/re-mineralization

An evaluation of a new approach to the regeneration of Helichrysum italicum (Roth) G. Don, and the molecular characterization of the variation among sets of differently derived regenerants

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