[article]
| Titre : |
Association between lactic acid sting test scores, self-assessed sensitive skin scores and biophysical properties in Chinese females |
| Type de document : |
texte imprimé |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 398-404 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Barrière cutanée
Epiderme
Lactique, AcideL'acide lactique est un acide organique qui joue un rôle dans divers processus biochimiques. Un lactate est un sel de cet acide. Contrairement à ce que peut laisser penser son nom, l'acide lactique n'est pas présent uniquement dans le lait, mais également dans le vin, certains fruits et légumes, et dans les muscles.
L'acide lactique est un acide alpha hydroxylé, sa formule chimique est C3H6O3 et sa structure se reflète dans son nom systématique, l'acide 2-hydroxypropanoïque.
Perméabilité
Sensibilité cutanée -- Mesure
Test de la piqure (dermatologie)
|
| Index. décimale : |
668.5 Parfums et cosmétiques |
| Résumé : |
- Background : Lactic acid sting test (LAST) is a classical method to identify sensitive skin. However, some subjects with self-perceived sensitive skin are negative for LAST.
- Objective : To determine whether LAST scores are associated with specific phenotype of sensitive skin.
- Methods : A total of 292 subjects with self-perceived sensitive skin were enrolled in this study. The Sensitive Scale was used to evaluate the severity of burning, stinging, itching, tautness, erythema and scaling based on 0–10 scale scores. In addition to the assessment of LAST scores, epidermal biophysical properties were measured using an MPA system.
- Results : The Sensitive Scale scores of stinging, itching, tautness and scaling were significantly different between the LAST-positive and -negative groups. However, burning and erythema scores did not differ between the LAST-positive and -negative groups. LAST scores were positively correlated with the Sensitive Scale scores for stinging, itching, tautness and scaling, but not for burning and erythema scores. Moreover, LAST scores negatively correlated with stratum corneum hydration, but positively with transepidermal water loss (TEWL) rates.
- Conclusions : Lactic acid sting test scores positively correlated with TEWL rates. LAST scores could be used to identify subjects with sensitive skin characterized mainly by stinging and itching, but not those mainly by burning and erythema. |
| Note de contenu : |
- MATERIALS AND METHODS : Subjects - The sensitive scale - Lactic acid sting test - Measurement of skin biophysical properties - Statistical analysis
- RESULTS AND DISCUSSION : Distribution of LAST scores among subjects - LAST scores are associated with specific symptomes and signs - LAST scores correlate with SCH and TEWL - Age correlates positively with tautness scores |
| DOI : |
10.1111/ics.12550 |
| En ligne : |
https://drive.google.com/file/d/1F-oBbKcv06aKgw_g5mjswIqhTsh2CRyK/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33120 |
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 41, N° 4 (08/2019) . - p. 398-404
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Association between lactic acid sting test scores, self-assessed sensitive skin scores and biophysical properties in Chinese females in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 41, N° 4 (08/2019)
