Abstract:
OBJECTIVE:To assess the efficacy and safety of topical 5% cysteamine versus 4% hydroquinone in the treatment of facial melasma in women. Topical 5% cysteamine is an antioxidant and tyrosinase inhibitor that has been shown to be effective in the treatment of melasma. However, to date, no study has compared the performance of topical cysteamine to hydroquinone for facial melasma. METHODS:A quasi-randomized, multicenter, evaluator-blinded clinical trial was conducted on 40 women with facial melasma who were submitted to the nightly application of 5% cysteamine (CYS) or 4% hydroquinone (HQ) on hyperpigmented areas for 120 days. Both groups were required to use tinted sunscreen (SPF 50; PPD 19). Subjects were assessed at the inclusion and after 60 and 120 days of treatment for mMASI, MELASQoL, and the difference in colorimetric luminosity between melasma and the adjacent unaffected skin. The Global Aesthetic Improvement Scale was used to assess the difference in the appearance of the skin through standardized photographs. RESULTS:The mean reduction of the mMASI scores was 24% for CYS and 41% for HQ (P = 0.015) at 60 days, and 38% for CYS and 53% for HQ (P = 0.017) at 120 days. The photographic evaluation revealed up to 74% improvement for both groups, without statistically significant difference between them (P = 0.087). The MELASQoL score showed a progressive decrease for both groups over time, despite the greater reduction for HQ after 120 days (P = 0.018). Colorimetric assessment disclosed progressive depigmenting in both groups, without statistically significant difference between them (P > 0.160). No severe adverse effects were identified in either group. Erythema and burning were the most important local adverse effects with cysteamine, although their frequency did not differ between groups (P > 0.170). CONCLUSION:Cysteamine proved to be safe, well-tolerated, and effective, despite its inferior performance to hydroquinone in decreasing mMASI and MELASQoL in the treatment of melasma.
journal_name
Int J Dermatoljournal_title
International journal of dermatologyauthors
Lima PB,Dias JAF,Cassiano D,Esposito ACC,Bagatin E,Miot LDB,Miot HAdoi
10.1111/ijd.15146subject
Has Abstractpub_date
2020-12-01 00:00:00pages
1531-1536issue
12eissn
0011-9059issn
1365-4632journal_volume
59pub_type
杂志文章abstract:BACKGROUND:Melasma is an acquired hypermelanosis of the face. There is little information on its prevalence during pregnancy in Iran. Objective To determine the prevalence and awareness of melasma during pregnancy at the Shahed University Hospitals of Tehran, Iran. METHODS:A cross-sectional study was carried out by cl...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2004.02470.x
更新日期:2006-03-01 00:00:00
abstract::Eight patients with senile erythroderma with serum hyper IgE were studied. Characteristic laboratory findings were persistently elevated IgE levels, high peripheral-blood eosinophils, and high lactic dehydrogenase (LDH). Immunologic analysis using immunoglobulin antibodies showed frozen sections of inguinal lymph node...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4362.1989.tb04815.x
更新日期:1989-05-01 00:00:00
abstract:BACKGROUND:Bullous skin diseases are known to be associated with significant morbidity and mortality. There have been no studies on mortality from severe bullous skin diseases in Canada. METHODS:We used mortality data from the Statistics Canada website from 2000 to 2007 for three major bullous skin diseases: bullous p...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2011.05227.x
更新日期:2012-11-01 00:00:00
abstract:BACKGROUND:Steatocystoma multiplex is an uncommon disorder which usually begins in adolescence or early adult life. The condition can be hereditary, as an autosomal dominant trait, or nonhereditary, as in this case. METHODS:A 40-year-old woman presented with a history of asymptomatic nodules that began around puberty ...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1046/j.1365-4362.2003.01309.x
更新日期:2003-04-01 00:00:00
abstract:BACKGROUND:The aim of this study is to reveal demographic and clinical features of Behçet's disease (BD) in a Turkish population. METHODS:We retrospectively evaluated the clinical findings of 521 patients with BD. RESULTS:A total of 521 patients (287 female and 234 male) were included in this study. Onset signs: oral...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2012.05756.x
更新日期:2014-05-01 00:00:00
abstract::A 73-year-old Celtic man presented with a linear pigmented 20-mm lesion on the left infraorbital cheek (Fig. 1). Clinical impression was pigmented basal cell epithelioma. Removal was accomplished by linear excision under local anesthesia. The wound was closed with a running 5-0 nylon subcuticular suture, which was rem...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4362.1985.tb05396.x
更新日期:1985-03-01 00:00:00
abstract:OBJECTIVE:The purpose of the study was to examine the eggs of pubic lice with consideration of their clinical relevance. STUDY DESIGN:Pubic lice eggs were examined by scanning electron microscopy (SEM). RESULTS:The egg is totally encased by a proteinaceous sheath, except for the operculum, by which oxygen exchange oc...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1046/j.1365-4362.2000.00901.x
更新日期:2000-03-01 00:00:00
abstract:BACKGROUND:The association between hepatitis C virus (HCV) infection and lichen planus (LP) is a subject of controversy. Prevalence studies of HCV infection in LP patients in various countries reveal diverse results. The Slovenian population is rather homogenous with specific geographic and epidemiological characterist...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2008.03832.x
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND:This is the first epidemiologic study of pemphigus in the southern region of Saudi Arabia. METHODS:Data were collected from patient records in the outpatient and inpatient departments of Asir Central Hospital during the period 1990-99. The diagnosis of pemphigus was based on the clinical, histopathologic, a...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1046/j.1365-4362.2001.01247.x
更新日期:2001-09-01 00:00:00
abstract::In order to deliver equal healthcare access to resource-poor settings, sustainable, cost-effective systems of communication should be used. As mobile phone use increases, remote care can be delivered via teledermatology using Apps. This commentary covers how WhatsApp could be used by dermatologists seeking to deliver ...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/ijd.14237
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:Psoriasis involving the face is visible and can cause considerable emotional distress to patients. Its presence may also confer a poorer prognosis for the patient. This study sought to evaluate the characteristics of facial psoriasis in Malaysia. METHODS:A cross-sectional study conducted using data from the...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/ijd.13307
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:As a variation of the curettage and destruction technique, cryosurgery can be used in place of electrodesiccation for the destructive component when managing superficial basal and squamous cell carcinomas. There are few studies, though, demonstrating the long-term cure rate associated with similar methods. T...
journal_title:International journal of dermatology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-4632.2011.04969.x
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:The hair cycle is regulated by various molecules, among which FGF-5 has been shown to promote the transition from anagen to catagen. The FGFR-1, a trans-membrane receptor of FGF-5 with tyrosine kinase activity, is localized in the follicular papilla of hair follicles. OBJECTIVES:In order to apply the antise...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2007.03018.x
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND:Prolonged activation of dermal fibroblasts is the main cause of progressive fibrosis in systemic sclerosis (SSc). It seems that inhibition of apoptosis in SSc fibroblasts deregulates fibrosis. MicroRNA-21 (miR-21) is a pro-fibrotic factor with high expression in lesional areas of SSc skin and fibroblasts. M...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/ijd.13308
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:The patient with xeroderma pigmentosum provides an appropriate human model for the evaluation of tumor development and progression. METHODS:We describe a patient with variant-type xeroderma pigmentosum who developed actinic keratoses, a squamous cell carcinoma, and its metastasis into a lymph node. DNA ploi...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4362.1994.tb00990.x
更新日期:1994-11-01 00:00:00
abstract:OBJECTIVE:This study analyzes the major clinical characteristics of patients with active leprosy in relation to the in vitro immune response to the T-lymphocyte activator anti-CD3. METHODS:Thirty-eight patients with an established diagnosis of leprosy were classified according to the Ridley and Jopling table. Peripher...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4362.1996.tb02974.x
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND:Endemic pemphigus foliaceus (EPF) or fogo selvagem (FS) is an endemic autoimmune disease, characterized by flaccid bullae induced by IgG(4) subclass antibodies. The authors demonstrate the epidemiological and clinical status of patients who have been followed at the University Hospital of Brasilia (HUB) for ...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2004.01739.x
更新日期:2005-04-01 00:00:00
abstract::Brooke-Spiegler syndrome is an autosomal dominant tumor predisposition disorder. The disease is characterized by the occurrence of multiple skin appendage tumors, including cylindroma, trichoepithelioma, and spiradenoma. In some patients, tumors cover the entire head circumference, thereby causing disfigurement and ot...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2008.03963.x
更新日期:2008-11-01 00:00:00
abstract::We sought to determine the prevalence of skin diseases in Iraq. Most such studies performed in Iraq have been hospital based. One community based study was performed in the southern area of Iraq but involved only an urban population. Our study was carried out in two Iraqi governorates, Tikrit and Kirkuk, and involved ...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2009.03812.x
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Pemphigus vegetans, a variant of pemphigus vulgaris, constitutes a rare form of all pemphigus cases, and oral involvement is common. Two clinical subtypes of pemphigus vegetans exist, characterized initially by flaccid bullae and erosions (Neumann) or pustules (Hallopeau). Both subtypes subsequently develop ...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2004.02480.x
更新日期:2006-04-01 00:00:00
abstract::Grover disease (GD) is a benign eruption that causes a papulovesicular rash on the trunk and proximal extremities. It often resolves spontaneously but can follow a more chronic and fluctuating course that may last several years. Although the etiology remains unknown, several associated triggers have been identified in...
journal_title:International journal of dermatology
pub_type: 杂志文章,评审
doi:10.1111/ijd.14700
更新日期:2020-05-01 00:00:00
abstract::Omalizumab is a recombinant humanized monoclonal antibody targeting the high-affinity Fc receptor of IgE, registered for the treatment of chronic spontaneous urticaria and severe allergic asthma. We present a case series of nine patients with atopic dermatitis (AD) treated off-label with omalizumab and a systematic re...
journal_title:International journal of dermatology
pub_type: 杂志文章,评审
doi:10.1111/ijd.13353
更新日期:2017-01-01 00:00:00
abstract::Challenge: Balancing patient-centered clinical care with learner-centered teaching in a clinical setting becomes particularly challenging when it comes to teaching procedures to trainees (e.g. biopsies, excisions, etc.). How can procedures be taught in a way that reinforces repetition and mastery without compromising ...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/ijd.13780
更新日期:2018-09-01 00:00:00
abstract::The authors collected data from the literature and from experts on the subject of vaccination of patients with dermatologic disorders. They assembled these data into categories of specific skin conditions and vaccinations. These data may be used in deciding whether or not to vaccinate, and at which stage of the dermat...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4362.1975.tb01431.x
更新日期:1975-03-01 00:00:00
abstract:BACKGROUND:Histoid leprosy (HL) is a highly bacilliferous form of leprosy which requires early diagnosis and management. Dermoscopy is a noninvasive diagnostic method for various malignant and nonmalignant disorders. The aim of this study was to describe the dermoscopic patterns of various types of HL lesions over diff...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/ijd.14731
更新日期:2020-03-01 00:00:00
abstract::A 31-year-old man, an intravenous drug user and in an advanced stage of acquired immune deficiency syndrome (AIDS), was admitted in our Department for the treatment of skin lesions that had been diagnosed as molluscum contagiosum (MC). The clinical examination revealed the presence of multiple nodular lesions, some of...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4362.1996.tb01616.x
更新日期:1996-01-01 00:00:00
abstract::Topical tacrolimus and pimecrolimus are indicated for the treatment of atopic dermatitis, but they have been studied in many off-label uses. We reviewed the English language literature to define their roles in treatment of vitiligo. Double-blind studies show that tacrolimus 0.1% ointment combined with excimer laser is...
journal_title:International journal of dermatology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-4632.2012.05697.x
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Dermatologic diseases vary widely as a result of geographic location and may be influenced by environmental factors. Aim To determine the epidemiology of dermatological diseases in the Peruvian Amazonia. METHODS:Transversal and multicentric study, which were carried out during February of 2006, 2007, and 20...
journal_title:International journal of dermatology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-4632.2010.04473.x
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Lichen planus pigmentosus (LPP) is an acquired disorder of hyperpigmentation affecting certain racial and ethnic groups. OBJECTIVE:To retrospectively analyze the demographic and clinical characteristics of LPP. METHODS:Clinical and demographic records of all LPP patients attending our pigmentary clinic fro...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/ijd.14540
更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:Onychomycosis, a fungal infection of the nail, is caused by dermatophytes, yeasts, and nondermatophyte molds. The causative pathogen and incidence of onychomycosis depend on age, gender, geographic and climatic conditions, living habits, and immune status of the host. AIM:To determine the incidence and etio...
journal_title:International journal of dermatology
pub_type: 杂志文章
doi:10.1111/j.1365-4632.2009.04126.x
更新日期:2009-09-01 00:00:00