Pitiríase versicolor circinada: isolamento de Malassezia sympodialis - Relato de caso

Framil, Valéria Maria de Souza; Melhem, Marcia S. C.; Szeszs, Maria Walderez; Corneta, Elaine Cristina; Zaitz, Clarisse

doi:10.1590/s0365-05962010000200015

Cited by 5 publications

(5 citation statements)

References 4 publications

(1 reference statement)

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“…Tinea versicolor is caused by dimorphic lipophilic and lipid-dependent yeasts in the genus Malassezia (formerly known as Pityrosporum) species, notably Malassezia globosa (M. globose), M. furfur and M. sympodialis. [2][3][4][5][6][7][8][9][10][11][12] Other species that have been implicated include M. restricta, M. obtuse, M. slooffiae, M. pachydermatis and M. japonica. [13][14][15][16] These yeasts are normal commensals on the skin surface.…”

Section: Review Aetiopathogenesismentioning

confidence: 99%

Tinea versicolor: an updated review

Leung¹,

Barankin²,

Lam³

et al. 2022

DIC

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A search was conducted in July 2022 in PubMed Clinical Queries using the key terms "tinea versicolor" OR "pityriasis versicolor". The search strategy included all clinical trials (including open trials, non-randomized controlled trials and randomized controlled trials), observational studies and reviews (including narrative reviews and meta-analyses) published within the past 10 years. Only papers published in the English literature were included in this review. The information retrieved from the search was used in the compilation of this article. Review AetiopathogenesisTinea versicolor is caused by dimorphic lipophilic and lipid-dependent yeasts in the genus Malassezia (formerly known as Pityrosporum) species, notably Malassezia globosa (M. globose), M. furfur and M. sympodialis. [2][3][4][5][6][7][8][9][10][11][12] Other species that have been implicated include M. restricta, M. obtuse, M. slooffiae, M. pachydermatis and M. japonica. [13][14][15][16] These yeasts are normal commensals on the skin surface. 17,18 Skin colonization increases with age; 25% of children and almost 100% of adults are affected. 19 Tinea versicolor occurs when the saprophytic yeast or budding form of the organism converts to the pathogenic hyphal or mycelial form. The fungal infection is localized to the stratum corneum. Predisposing factors for the conversion include a hot and humid environment, hyperhidrosis, application of oily lotion or cream to the skin, wearing of masks, excessive lipid-containing sebaceous secretions, malnutrition, poor general health, use of oral contraceptives, pregnancy, diabetes mellitus, use of topical or systemic corticosteroids, Cushing disease, Helicobacter pylori infection, immunodeficiency and genetic predisposition. [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] A recent study showed oxidative stress has no role in the pathogenesis of tinea versicolor. 29

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Section: Review Aetiopathogenesismentioning

confidence: 99%

Tinea versicolor: an updated review

Leung¹,

Barankin²,

Lam³

et al. 2022

DIC

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“…People who live in tropical areas may have PV year-round. The first sign of PV is often lighter spots on the skin with variable colour; white, pink, salmon, tan or brown, the spots can be dry and scaly (Framil et al, 2010 andPark et al, 2012). Malassezia species are yeasts that comprise part of the micro flora of human skin, especially; they are abundant in regions supplied with sebaceous glands because of their lipid requirement for growth.…”

Section: Introductionmentioning

confidence: 99%

Potential Activity of Some Essential Oils and Human Amniotic Membrane against Malassezia furfur and Staphylococcus aureus Isolated from Pityriasis Versicolor Patients

2018

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“…It is a pigmentation disorder clinically characterized by the presence of macular lesions, initially perifollicular with fine scaling, variable color spanning from white to brown and occasionally becoming erythematous. 1-3 …”

Section: Introductionmentioning

confidence: 99%

Treatment of pityriasis versicolor with topical application of essential oil of Cymbopogon citratus (DC) Stapf - therapeutic pilot study

Carmo

Pereira

Cavalcante

et al. 2013

An. Bras. Dermatol.

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BACKGROUND Pityriasis versicolor is a fungal infection caused by Malassezia spp. that has frequent relapses. OBJECTIVES The main objective of this research was to perform phase I and II clinical studies, using formulations containing essential oil of Cymbopogon citratus in patients with pityriasis versicolor. METHODS Phase I study included twenty volunteers to ascertain the safety of the formulations. In phase II, 47 volunteers randomly received essential oil formulations at 1.25 μL/mL concentration, for forty days. The shampoo should be applied three times a week and the cream twice a day. A control group in phase II, consisting of 29 volunteers, received the same formulations but with 2% ketoconazole as the active ingredient. RESULTS No significant adverse events were observed in volunteers during Phase I. In Phase II, 30 (63.83%) volunteers using essential oil and 18 (62.07%) using ketoconazole remained until the end of the study. We observed a predominance of lesions in disseminated form, with M. sympodialis detected as the predominant agent identified in cultures. After 40 days of treatment, the rate of mycological cure was 60% (p <0.05) for the group treated with essential oil of C. citratus and over 80% (p <0.05) for the group treated with ketoconazole formulations. CONCLUSIONS Notwithstanding the safety and antifungal effects observed in this study after application of formulations containing the essential oil of C. citratus, further studies with larger populations should be performed to confirm the actual potential of these formulations in the treatment of patients with Pityriasis versicolor.

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Pitiríase versicolor circinada: isolamento de Malassezia sympodialis - Relato de caso

Cited by 5 publications

References 4 publications

Tinea versicolor: an updated review

Tinea versicolor: an updated review

Potential Activity of Some Essential Oils and Human Amniotic Membrane against Malassezia furfur and Staphylococcus aureus Isolated from Pityriasis Versicolor Patients

Treatment of pityriasis versicolor with topical application of essential oil of Cymbopogon citratus (DC) Stapf - therapeutic pilot study

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