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1.
Ann Dermatol ; 32(3): 181-188, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33911736

RESUMO

BACKGROUND: Internalized stigma, adoption of negative attitudes and stereotypes of the society regarding persons' illness, has not been studied previously in pediatric psoriasis patients. OBJECTIVE: We aimed to investigate the internalized stigma in pediatric psoriasis patients and to determine differences according to factors affecting internalized stigma compared to adult psoriasis patients. METHODS: This multicenter, cross-sectional, comparative study included 125 pediatric (55 female, 70 male; mean age±standard deviation [SD], 14.59±2.87 years) and 1,235 adult psoriasis patients (577 female, 658 male; mean age±SD, 43.3±13.7 years). Psoriasis Internalized Stigma Scale (PISS), Dermatology Life Quality Index (DLQI), Perceived Health Status (PHS), and the General Health Questionnaire (GHQ)-12 were the scales used in the study. RESULTS: The mean PISS was 58.48±14.9 in pediatric group. When PISS subscales of groups were compared, the pediatric group had significantly higher stigma resistance (p=0.01) whereas adult group had higher scores of alienation (p=0.01) and stereotype endorsement (p=0.04). There was a strong correlation between mean values of PISS and DLQI (r=0.423, p=0.001). High internalized stigma scores had no relation to either the severity or localization of disease in pediatric group. However, poor PHS (p=0.007) and low-income levels (p=0.03) in both groups, and body mass index (r=0.181, p=0.04) in the pediatric group were related to high PISS scores. CONCLUSION: Internalized stigma in pediatric patients is as high as adults and is related to poor quality of life, general health, and psychological illnesses. Unlike adults, internalized stigma was mainly determined by psoriasis per se, rather than disease severity or involvement of visible body parts, genitalia or folds.

2.
G Ital Dermatol Venereol ; 154(2): 177-185, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28704984

RESUMO

BACKGROUND: There are only a few studies about epidemiological features of acne vulgaris in the literature. The aim of this study was to analyze demographic, clinical, familial and environmental characteristics of acne, the role of diet and aggravating factors and association of these factors with acne severity. METHODS: Patients with a diagnosis of mild-moderate to severe acne were consecutively interviewed at the participating centers during the study period. RESULTS: A total of 3826 patients and 759 control patients were involved in this study. Mild acne was the most common type of acne, and most of the lesions were localized on face followed by the trunk. The severity of acne was worse in patients who had a positive family history of acne. The most common triggering factor was psychological stress. We found a positive correlation with chocolate, bread, green tea, milk, white sugar, ripe banana, ice cream, apple, orange, and red meat consumption. As we compare the acne severity according to geographical features we detected mild- moderate acne was more common in Mediterranean region and severe acne was more common in East Anatolian region. Family history positivity was more common in Aegean region and least common in Central Anatolian region. There was statistically significant relationship as we compare acne severity and dietary factors such as chocolate, dairy products such as milk, sunflower seed consumption within the geographical regions. CONCLUSIONS: This study presents the demographic and clinical characteristics of acne patients in Asian and the European parts of Turkey. We believe that this study will provide a useful overview of acne in Turkey.


Assuntos
Acne Vulgar/epidemiologia , Dieta/efeitos adversos , Saúde da Família , Estresse Psicológico/complicações , Acne Vulgar/etiologia , Acne Vulgar/patologia , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Meio Ambiente , Feminino , Humanos , Masculino , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença , Estresse Psicológico/epidemiologia , Turquia , Adulto Jovem
3.
Int J Dermatol ; 58(6): 722-728, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30575019

RESUMO

BACKGROUND: Once considered a disorder limited to the skin, rosacea is now known to be associated with systemic disorders. The aim of this study was to determine what systemic comorbidities accompany rosacea and to determine the relationship between the type, severity, and duration of rosacea, and the presence of and type of systemic comorbidities. METHODS: This retrospective multicenter study was conducted by the Turkish Society of Dermatology Acne Study Group. Thirteen dermatology clinics throughout Turkey participated in the study. A structured physician-administered questionnaire was used to collect patient demographics, clinical findings, and lifestyle data. The principal rosacea subtype, physician global assessment of severity, and duration of rosacea were recorded. Physicians recorded each participant's medical history, including current and past comorbidities, duration of any such comorbidity, and the use of medications to treat any comorbidities. RESULTS: The study included 1,195 rosacea patients and 621 controls without rosacea aged 18-85 years. As compared to the controls, more of the rosacea patients had respiratory tract, gastrointestinal system, and metabolic and hepatobiliary system disorders in a rosacea's severity- and duration-dependent manner. CONCLUSION: Clinicians must be aware of the potential for systemic comorbidities in rosacea patients, which becomes more likely as disease duration and severity increase.


Assuntos
Rosácea/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Comorbidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Rosácea/diagnóstico , Índice de Gravidade de Doença , Fatores de Tempo , Turquia/epidemiologia , Adulto Jovem
4.
An Bras Dermatol ; 92(2): 271-272, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28538897

RESUMO

Werner syndrome is a rare autosomal recessive disorder, caused by mutations in the WRN gene. Clinical findings include: senile appearance, short stature, grey hair, alopecia, bird-like face, scleroderma-like skin changes, skin ulcers, voice abnormalities, cataracts, osteoporosis, type 2 diabetes mellitus, ischemic heart disease and hypogonadism. The syndrome begins to become apparent in adolescence but it is usually diagnosed in the third or fourth decade of life. Since the patients usually die by the age of 40-50 years related to malignant neoplasms or atherosclerotic complications, they should be closely followed and treated for complications.


Assuntos
Síndrome de Werner/diagnóstico , Adulto , Diagnóstico Diferencial , Humanos , Úlcera da Perna/etiologia , Masculino , Esclerodermia Localizada , Síndrome de Werner/complicações
5.
J Dermatol ; 44(8): 885-891, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28407292

RESUMO

Internalized stigma is the adoption of negative attitudes and stereotypes of the society regarding a person's illness. It causes decreased self-esteem and life-satisfaction, increased depression and suicidality, and difficulty in coping with the illness. The primary aim of this study was to investigate the internalized stigma state of psoriatic patients and to identify the factors influencing internalized stigma. The secondary aim was to identify the correlation of internalized stigma with quality of life and perceived health status. This multicentre, cross-sectional study comprised 1485 patients. There was a significant positive correlation between mean values of Psoriasis Internalized Stigma Scale (PISS) and Psoriasis Area and Severity Index, Body Surface Area, Dermatological Life Quality Index and General Health Questionnaire-12 (P < 0.001 in all). Lower percieved health score (P = 0.001), early onset psoriasis (P = 0.016), family history of psoriasis (P = 0.0034), being illiterate (P < 0.001) and lower income level (P < 0.001) were determinants of high PISS scores. Mean PISS values were higher in erythrodermic and generalized pustular psoriasis. Involvement of scalp, face, hand, genitalia and finger nails as well as arthropathic and inverse psoriasis were also related to significantly higher PISS scores (P = 0.001). Our findings imply that psoriatic patients experience high levels of internalized stigma which are associated with psoriasis severity, involvement of visible body parts, genital area, folds or joints, poorer quality of life, negative perceptions of general health and psychological illnesses. Therefore, internalized stigma may be one of the major factors responsible from psychosocial burden of the disease.


Assuntos
Depressão/psicologia , Psoríase/psicologia , Qualidade de Vida , Autoimagem , Estigma Social , Adulto , Imagem Corporal/psicologia , Efeitos Psicossociais da Doença , Estudos Transversais , Feminino , Nível de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Pobreza/psicologia , Estudos Prospectivos , Índice de Gravidade de Doença , Inquéritos e Questionários , Fatores de Tempo
6.
An. bras. dermatol ; 92(2): 271-272, Mar.-Apr. 2017. tab, graf
Artigo em Inglês | LILACS | ID: biblio-838064

RESUMO

Abstract: Werner syndrome is a rare autosomal recessive disorder, caused by mutations in the WRN gene. Clinical findings include: senile appearance, short stature, grey hair, alopecia, bird-like face, scleroderma-like skin changes, skin ulcers, voice abnormalities, cataracts, osteoporosis, type 2 diabetes mellitus, ischemic heart disease and hypogonadism. The syndrome begins to become apparent in adolescence but it is usually diagnosed in the third or fourth decade of life. Since the patients usually die by the age of 40-50 years related to malignant neoplasms or atherosclerotic complications, they should be closely followed and treated for complications


Assuntos
Humanos , Masculino , Adulto , Síndrome de Werner/diagnóstico , Esclerodermia Localizada , Síndrome de Werner/complicações , Diagnóstico Diferencial , Úlcera da Perna/etiologia
8.
G Ital Dermatol Venereol ; 151(6): 603-609, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27824222

RESUMO

BACKGROUND: There is limited data concerning the relationship between psychosocial problems of psoriasis patients and the function of their hypothalamic-pituitary-adrenal (HPA) axis and immunologic markers. This study aimed to determine serum levels of basal cortisol and adrenocorticotropic hormone (ACTH) and circulating levels of various cytokines and chemokines and their association with psychological measures in psoriasis patients. METHODS: Serum concentrations of endocrinological and immunological variables were quantified, and psychiatric questionnaires were completed. RESULTS: In psoriasis patients, serum levels of ACTH, TNF-a, IL-6, IL-23, CCL-17, CCL-27, CCL-20 and CXCL-9, current psychiatric symptoms and childhood neglect scores were all higher than in controls. In addition, in psoriasis patients, physical neglect scores were related to lower basal cortisol, whereas recent stressful life events were related to higher IL-6, IL-23 and CCL-20 levels. CONCLUSIONS: The exposure to stressful life events in childhood and just before a flare-up of psoriasis may be related to altered function of the HPA axis and an immune dysregulation in psoriasis.


Assuntos
Sistema Hipotálamo-Hipofisário/metabolismo , Sistema Hipófise-Suprarrenal/metabolismo , Psoríase/psicologia , Hormônio Adrenocorticotrópico/sangue , Adulto , Idoso , Quimiocinas/sangue , Citocinas/sangue , Feminino , Humanos , Hidrocortisona/sangue , Acontecimentos que Mudam a Vida , Masculino , Pessoa de Meia-Idade , Psoríase/sangue , Psoríase/imunologia , Inquéritos e Questionários , Adulto Jovem
9.
An Bras Dermatol ; 91(2): 156-9, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27192513

RESUMO

BACKGROUND: Although the pathogenesis of androgenetic alopecia is not completely understood, the roles of genetic susceptibility and androgens are well-known. A lower ratio of the second digit (index finger = 2D) to the fourth digit (ring finger = 4D) length has been hypothesized to reflect prenatal androgen exposure and/or higher sensitivity to androgens. OBJECTIVES: To determine the relationship between the second to fourth digit length ratio and androgenetic alopecia. METHODS: Finger length measurements were made by a digital vernier calliper. Androgenetic alopecia severity was assessed using the Hamilton-Norwood scale. Subjects with an androgenetic alopecia score of grade III or more were included in the study. RESULTS: A total of 189 males with androgenetic alopecia and 171 healthy controls were enrolled in the study. The age range of participants was 19-65 years. The 2D:4D ratios in patients with androgenetic alopecia were significantly lower than those of healthy controls for the right hand; however, no significant difference was found for the left hand. Average 2D:4D ratios in androgenetic alopecia patients were also lower than in controls. No significant relationship was observed between androgenetic alopecia severity and 2D:4D ratios. CONCLUSION: Our data support the anatomical evidence of in utero androgen exposure and/or an individual's sensitivity to androgens in patients with androgenetic alopecia. Furthermore, the right hand 2D:4D ratio might be an indicator of androgenetic alopecia development.


Assuntos
Alopecia/diagnóstico , Dedos/anatomia & histologia , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Adulto , Idoso , Alopecia/etiologia , Androgênios/análise , Androgênios/fisiologia , Antropometria/métodos , Estudos de Casos e Controles , Feminino , Marcadores Genéticos , Predisposição Genética para Doença , Humanos , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão , Valor Preditivo dos Testes , Gravidez , Padrões de Referência , Valores de Referência , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Adulto Jovem
10.
An Bras Dermatol ; 91(2): 250-2, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27192533

RESUMO

Acne vulgaris has recently been reported to be associated with elevated rates of attention deficit/hyperactivity disorder in epidemiological studies. This report examines childhood and current attention-deficit/hyperactivity disorder symptoms in a clinical sample of female adults. Ninety-one women with acne vulgaris and 53 controls were included in this study. The aforementioned symptoms were measured in participants. No significant differences were found between patients and controls in any of the measurements. Contrary to the findings of epidemiological studies, this study did not uncover a link between acne vulgaris and attention-deficit/hyperactivity disorder.


Assuntos
Acne Vulgar/fisiopatologia , Acne Vulgar/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Pré-Escolar , Depressão/psicologia , Feminino , Humanos , Humor Irritável , Transtornos Mentais/psicologia , Testes Psicológicos , Autorrelato , Índice de Gravidade de Doença , Estatísticas não Paramétricas , Adulto Jovem
12.
An. bras. dermatol ; 91(2): 156-159, Mar.-Apr. 2016. tab
Artigo em Inglês | LILACS | ID: lil-781366

RESUMO

Abstract BACKGROUND: Although the pathogenesis of androgenetic alopecia is not completely understood, the roles of genetic susceptibility and androgens are well-known. A lower ratio of the second digit (index finger = 2D) to the fourth digit (ring finger = 4D) length has been hypothesized to reflect prenatal androgen exposure and/or higher sensitivity to androgens. OBJECTIVES: To determine the relationship between the second to fourth digit length ratio and androgenetic alopecia. METHODS: Finger length measurements were made by a digital vernier calliper. Androgenetic alopecia severity was assessed using the Hamilton-Norwood scale. Subjects with an androgenetic alopecia score of grade III or more were included in the study. RESULTS: A total of 189 males with androgenetic alopecia and 171 healthy controls were enrolled in the study. The age range of participants was 19-65 years. The 2D:4D ratios in patients with androgenetic alopecia were significantly lower than those of healthy controls for the right hand; however, no significant difference was found for the left hand. Average 2D:4D ratios in androgenetic alopecia patients were also lower than in controls. No significant relationship was observed between androgenetic alopecia severity and 2D:4D ratios. CONCLUSION: Our data support the anatomical evidence of in utero androgen exposure and/or an individual’s sensitivity to androgens in patients with androgenetic alopecia. Furthermore, the right hand 2D:4D ratio might be an indicator of androgenetic alopecia development.


Assuntos
Humanos , Masculino , Feminino , Adulto , Idoso , Adulto Jovem , Efeitos Tardios da Exposição Pré-Natal/diagnóstico , Alopecia/diagnóstico , Dedos/anatomia & histologia , Tamanho do Órgão , Padrões de Referência , Valores de Referência , Índice de Gravidade de Doença , Gravidez , Marcadores Genéticos , Estudos de Casos e Controles , Antropometria/métodos , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Predisposição Genética para Doença , Alopecia/etiologia , Androgênios/análise , Androgênios/fisiologia
13.
Cutan Ocul Toxicol ; 35(4): 329-31, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26513697

RESUMO

Vemurafenib, a novel treatment for patients with BRAF-positive metastatic melanoma, is associated with a wide spectrum of cutaneous adverse events both benign and malignant. Vemurafenib-induced pityriasis amiantacea (PA), a scaling reaction of the scalp that may cause temporary or cicatricial alopecia, has not yet been reported in the literature. In the present case, PA was observed two months after the initiation of vemurafenib therapy for metastatic melanoma and managed with symptomatic treatment without the need to cease or modify the vemurafenib dosage.


Assuntos
Antineoplásicos/efeitos adversos , Indóis/efeitos adversos , Pitiríase/induzido quimicamente , Sulfonamidas/efeitos adversos , Antineoplásicos/uso terapêutico , Humanos , Indóis/uso terapêutico , Masculino , Melanoma/tratamento farmacológico , Pessoa de Meia-Idade , Neoplasias Cutâneas/tratamento farmacológico , Sulfonamidas/uso terapêutico , Vemurafenib
14.
Cytokine ; 77: 10-3, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26499979

RESUMO

Tumour necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) has been implicated in the pathogenesis of a variety of inflammatory disorders and autoimmune diseases. However, studies conducted on the relationship of TWEAK and psoriasis patients are limited. In this study, we aimed to explore the serum levels of TWEAK and investigated whether TWEAK levels are associated with clinical variables and expression of other well-known psoriasis-related cytokines including IL-6, IL-23 and TNF-α. Forty-five patients with chronic plaque psoriasis and 43 controls were enrolled in this study. The severity of psoriasis was assessed by the Psoriasis Area and Severity Index (PASI). Serum levels of cytokines were measured using commercial enzyme-linked immunosorbent assay (ELISA) kits. The mean TWEAK, IL-6, IL-23, and TN-α levels were significantly higher in psoriasis patients than in control subjects. However, there were no significant correlations between the psoriasis severity, the illness duration and serum cytokine levels. This study shows that TWEAK may be associated with the pathogenesis of psoriasis, like TNF-α, IL-6, and IL-23.


Assuntos
Psoríase/sangue , Fatores de Necrose Tumoral/sangue , Adolescente , Adulto , Citocina TWEAK , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Interleucina-23/sangue , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Psoríase/patologia , Índice de Gravidade de Doença , Fator de Necrose Tumoral alfa/sangue , Adulto Jovem
16.
Int J Trichology ; 7(3): 113-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26622154

RESUMO

AIM: Many psychiatric disorders, including attention-deficit/hyperactivity disorder (ADHD), disruptive behavioral disorders, autism spectrum disorders, and some psychiatric characteristics, such as poor empathizing, are regarded to be related to elevated levels of androgens or androgen sensitivity. Thus, numerous studies have investigated the potential association between androgen-related physical diseases and these psychiatric conditions. Idiopathic hirsutism (IH) is a disease characterized by an increased sensitivity of the pilosebaceous unit to circulating androgens in women. The purpose of this study was to examine whether IH has a relationship with androgen-related psychiatric conditions. MATERIALS AND METHODS: Totally 37 females with IH and 33 healthy female controls were included in this study. Childhood and present ADHD symptoms of the participants were assessed using the Wender Utah Rating Scale (WURS) and the Adult ADHD Self-Report Scale, respectively. The Autism-spectrum quotient and the interpersonal reactivity index were used to assess autistic traits and different aspects of empathy. Hirsutism severity was measured using the Ferriman-Gallwey scoring system. RESULTS: No significant difference was found between the patients and controls on psychiatric questionnaire scores, except for a trend for subjects with IH to show higher levels of the school-associated problems than controls according to WURS. The severity of hirsutism was strongly correlated with the WURS irritability and behavioral problems/impulsivity subscores and WURS total score, and moderately correlated with the WURS attentional deficit subscore. CONCLUSIONS: This study provides preliminary evidence that common etiological factors may be involved in both the severity of IH, ADHD, and coexisting disruptive behavioral problems.

17.
Am J Clin Dermatol ; 16(6): 559-64, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26242229

RESUMO

BACKGROUND: A relationship between acne vulgaris (AV) and the masculinized (lower) second-to-fourth digit (2D:4D) ratio in females was demonstrated in our previous study. Development of the digits and the sebaceous glands both occur during the same gestational period; therefore, the association between the 2D:4D ratios and AV may result from the effects of the prenatal endocrine environment on the sebaceous glands. OBJECTIVE: The aim of this study was to evaluate the relationship between the 2D:4D ratio and sebum levels in the skin of females with AV. METHODS: In total, 215 female AV patients and 92 healthy controls, aged 18-35 years, were enrolled in this study. Finger-length measurements were made using a digital Vernier caliper, and the sebum levels of five facial areas were measured using a Sebumeter SM 815. Acne severity was assessed using the International Consensus Conference on Acne Classification System. RESULTS: The 2D:4D ratios of the AV patients were significantly lower than those of the controls, for both hands. The mean sebum levels in the T-zone, U-zone and whole face were significantly higher for AV patients compared with controls. The 2D:4D ratio in the left hand showed significant negative correlations with the sebum levels in the U-zone; however, no association was found between the 2D:4D ratios and sebum levels in the T-zone and whole face. While acne severity was positively correlated with skin sebum levels, no correlation between acne severity and 2D:4D ratios was observed. CONCLUSION: This study provides preliminary evidence regarding the association between lower 2D:4D ratios and higher rates of sebum secretion in the U-zone for females with AV. The 2D:4D ratio might be a predictor of sebum levels, as well as acne development, in females.


Assuntos
Acne Vulgar/fisiopatologia , Dedos/patologia , Sebo/metabolismo , Adolescente , Adulto , Estudos de Casos e Controles , Progressão da Doença , Feminino , Humanos , Valores de Referência , Pele/metabolismo , Estatísticas não Paramétricas , Adulto Jovem
18.
Arch Dermatol Res ; 307(5): 439-44, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25708188

RESUMO

Hyperhomocysteinemia, a well-known and independent risk factor for cardiovascular disease, has been related in several studies with psoriasis patients. It has been suggested that homocysteine leads to endothelial dysfunction by causing an accumulation of asymmetrical dimethyl arginine (ADMA), a potent endogenous nitric oxide (NO) synthase inhibitor of the L-arginine-NO pathway. However, limited data is available regarding the psoriasis and ADMA relationship. In this study, we aimed to investigate the serum levels of homocysteine, ADMA and other metabolites from the L-arginine-NO pathway in psoriasis patients. Forty-two patients with chronic plaque psoriasis and 48 controls were enrolled in the study. Serum homocysteine, ADMA, L-monomethyl-L-arginine (L-NMMA), symmetric dimethylarginine (SDMA) and L-arginine levels, and L-arginine/ADMA ratios of psoriasis patients and the control group were measured. The severity of psoriasis was assessed by the psoriasis area and severity index (PASI). The mean ADMA and homocysteine values were significantly higher, and citrulline and L-arginine/ADMA values were significantly lower in psoriasis patients compared to control subjects. However, there were no significant differences among the patient and control groups with respect to mean SDMA, L-NMMA and L-arginine values. PASI scores strongly correlated with the ADMA level and moderately correlated with L-arginine/ADMA ratio. This study suggests that the L-arginine-NO pathway metabolites, especially ADMA, may play an important role in the pathogenesis of psoriasis. Additionally, serum ADMA levels of psoriasis patients may be an indicator of the disease severity.


Assuntos
Arginina/análogos & derivados , Arginina/sangue , Inibidores Enzimáticos/sangue , Homocisteína/sangue , Óxido Nítrico/sangue , Psoríase/sangue , Transdução de Sinais/fisiologia , Adulto , Arginina/metabolismo , Biomarcadores/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Psoríase/patologia , Adulto Jovem
19.
Atten Defic Hyperact Disord ; 7(3): 179-81, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25605459

RESUMO

Vitiligo is a chronic skin disease characterized by the appearance of white depigmented lesion due to a loss of melanocytes. The etiopathogenesis of vitiligo is not clear, but according to the neural theory of vitiligo, the direct and indirect effects of monoamine neurotransmitters cause melanocyte destruction and various studies have supported this theory. Many drugs have been related to the development of vitiligo, and the melanocytotoxic effects of the some of these drugs are thought to be related due to their effects on the monoaminergic system. Furthermore, a recent article reported the development of a localized loss of pigmentation after the application of a methylphenidate patch in a patient with attention-deficit/hyperactivity disorder (ADHD). Atomoxetine is an inhibitor of norepinephrine reuptake sites and is a drug that has been used for the treatment of ADHD. Here, we present a school-aged child with ADHD who displayed a vitiligo lesion following the initiation of atomoxetine. We further discuss the possible impact of the ADHD drugs on the development of vitiligo.


Assuntos
Cloridrato de Atomoxetina/efeitos adversos , Vitiligo/induzido quimicamente , Inibidores da Captação Adrenérgica/efeitos adversos , Criança , Feminino , Humanos
20.
Cutan Ocul Toxicol ; 34(4): 303-6, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25373485

RESUMO

BACKGROUND: Prior studies have demonstrated lower serum zinc levels in acne vulgaris (AV) patients compared with controls. However, no study has investigated the relationship between AV and erythrocyte zinc levels, which is a superior indicator of body zinc levels. Additionally, the potential influence of isotretinoin use on body zinc status remains to be evaluated. In this study, we aimed to determine erythrocyte zinc levels and their relationship with isotretinoin use in AV patients. METHODS: The enrolled study participants included 106 (68% female) isotretinoin-treated AV patients, 89 (65% female) untreated AV patients and 100 (59% female) healthy volunteers between 18 and 30 years of age. The acne severity of the AV patients who did not receive treatment was assessed using the classification system of the International Consensus Conference on Acne. Erythrocyte zinc levels were analysed by atomic absorption spectroscopy. RESULTS: No significant differences were observed among the three groups with respect to erythrocyte zinc levels. In addition, erythrocyte zinc levels did not vary according to the severity of AV, nor according to the duration of isotretinoin use. CONCLUSION: This study suggests that no relationships exist among zinc status, AV and isotretinoin use. However, given the relationship between vitamin A and zinc, and the fact that previous studies have indicated low serum zinc levels in AV patients, prospective studies are required to corroborate our data.


Assuntos
Acne Vulgar/tratamento farmacológico , Fármacos Dermatológicos/uso terapêutico , Eritrócitos/metabolismo , Isotretinoína/uso terapêutico , Zinco/sangue , Acne Vulgar/sangue , Adolescente , Adulto , Estudos de Casos e Controles , Fármacos Dermatológicos/administração & dosagem , Relação Dose-Resposta a Droga , Eritrócitos/efeitos dos fármacos , Feminino , Humanos , Isotretinoína/administração & dosagem , Masculino , Índice de Gravidade de Doença , Espectrofotometria Atômica , Adulto Jovem
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