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1.
Front Immunol ; 11: 572924, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33343564

RESUMO

Psoriasis vulgaris (PV) is a chronic, recurrent inflammatory dermatosis mediated by aberrantly activated immune cells. The role of the innate-like T cells, particularly gammadelta T (γδT) cells and MR1-restricted T lymphocytes, is incompletely explored, mainly through animal models, or by use of surrogate lineage markers, respectively. Here, we used case-control settings, multiparameter flow cytometry, 5-OP-RU-loaded MR1-tetramers, Luminex technology and targeted qRT-PCR to dissect the cellular and transcriptional landscape of γδ and MR1-restricted blood T cells in untreated PV cases (n=21, 22 matched controls). High interpersonal differences in cell composition were observed, fueling transcriptional variability at healthy baseline. A minor subset of canonical CD4+CD8+MR1-tet+TCRVα7.2+ and CD4+CD8-MR1-tet+TCRVα7.2+ T cells was the most significantly underrepresented community in male PV individuals, whereas Vδ2+ γδ T cells expressing high levels of TCR and Vδ1-δ2- γδ T cells expressing intermediate levels of TCR were selectively enriched in affected males, partly reflecting disease severity. Our findings highlight a formerly unappreciated skewing of human circulating MAIT and γδ cytomes during PV, and reveal their compositional changes in relation to sex, CMV exposure, serum cytokine content, BMI, and inflammatory burden. Complementing numerical alterations, we finally show that flow-sorted, MAIT and γδ populations exhibit divergent transcriptional changes in mild type I psoriasis, consisting of differential bulk expression for signatures of cytotoxicity/type-1 immunity (EOMES, RUNX3, IL18R), type-3 immunity (RORC, CCR6), and T cell innateness (ZBTB16).


Assuntos
Antígenos de Histocompatibilidade Classe I/metabolismo , Antígenos de Histocompatibilidade Menor/metabolismo , Células T Invariantes Associadas à Mucosa/imunologia , Psoríase/imunologia , Linfócitos T/imunologia , Células Th1/imunologia , Adulto , Circulação Sanguínea , Diferenciação Celular , Citotoxicidade Imunológica , Feminino , Humanos , Imunidade Inata , Masculino , Pessoa de Meia-Idade , Proteína com Dedos de Zinco da Leucemia Promielocítica/genética , Proteína com Dedos de Zinco da Leucemia Promielocítica/metabolismo , Receptores de Antígenos de Linfócitos T gama-delta/metabolismo , Adulto Jovem
2.
Acta Clin Croat ; 59(4): 745-750, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34285446

RESUMO

Common warts (verrucae vulgares) are the most common complaint in routine dermatological practice. Warts can be painful on pressure and are often an aesthetic problem, but they are not a major threat to the person's general health. Treatment options are symptomatic and do not eradicate the causative agent. Dermatological surgery procedures such as cryotherapy, electrocauterization and excochleation can be painful, with common recurrences. These are the most important reasons for revival of the treatment procedures and remedies based on traditional medicine. Traditional medicine is still commonly practiced as a form of self-healing. This paper presents the most commonly used wart remedies of plant, animal and mineral origin, along with various magic practices. We emphasize that this paper is written from the viewpoint of physicians, practitioners of dermatology, not as a study in the history or culture. The main objective of the study was to explore various substances and methods people use as home remedies for warts. We performed a case study survey among the general population by interviewing 147 adult participants using a simple preliminary questionnaire inquiring about preferred treatment and knowledge about common warts.


Assuntos
Verrugas , Adulto , Crioterapia , Humanos , Medicina Tradicional , Recidiva , Inquéritos e Questionários , Verrugas/diagnóstico , Verrugas/terapia
3.
Acta Clin Croat ; 55(1): 29-34, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27333715

RESUMO

Atopic dermatitis (AD) is a chronic relapsing, inflammatory skin disease. Failure to treat AD successfully can often be directly linked to poor treatment adherence as a result of the lack of information about the disease and basic principles of treatment. Several studies have found that making patients active participants in their care through information and education is a successful treatment strategy in AD. The aim of this study was to evaluate parental knowledge on AD and to stress the importance of therapeutic educational program in long-term management and control of the disease. We carried out a short questionnaire-based study among 238 parents of children with AD regarding their knowledge on the etiology and treatment of AD. Our results showed that 21% of the participants reported corticophobia and were concerned about systemic absorption affecting the child's growth and development even after short application. In children with AD who have food hypersensitivity, 14% of parents thought that a small amount of food allergen could be beneficial in achieving tolerability. The role of interdisciplinary educational program is to explain the epidemiology and pathogenesis of AD, as well as concomitant atopy related diseases and to teach parents about the importance of appropriate skin care.


Assuntos
Dermatite Atópica/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Pais , Educação de Pacientes como Assunto , Administração Cutânea , Corticosteroides/uso terapêutico , Criança , Pré-Escolar , Dermatite Atópica/tratamento farmacológico , Feminino , Hipersensibilidade Alimentar , Humanos , Lactente , Masculino , Adesão à Medicação/psicologia , Inquéritos e Questionários
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