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1.
Front Immunol ; 11: 572924, 2020.
Article in English | MEDLINE | ID: mdl-33343564

ABSTRACT

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).


Subject(s)
Histocompatibility Antigens Class I/metabolism , Minor Histocompatibility Antigens/metabolism , Mucosal-Associated Invariant T Cells/immunology , Psoriasis/immunology , T-Lymphocytes/immunology , Th1 Cells/immunology , Adult , Blood Circulation , Cell Differentiation , Cytotoxicity, Immunologic , Female , Humans , Immunity, Innate , Male , Middle Aged , Promyelocytic Leukemia Zinc Finger Protein/genetics , Promyelocytic Leukemia Zinc Finger Protein/metabolism , Receptors, Antigen, T-Cell, gamma-delta/metabolism , Young Adult
2.
Acta Clin Croat ; 59(4): 745-750, 2020 Dec.
Article in English | MEDLINE | ID: mdl-34285446

ABSTRACT

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.


Subject(s)
Warts , Adult , Cryotherapy , Humans , Medicine, Traditional , Recurrence , Surveys and Questionnaires , Warts/diagnosis , Warts/therapy
3.
Acta Dermatovenerol Croat ; 26(1): 33-38, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29782297

ABSTRACT

Scabies and pediculosis are common parasitic infestations of the skin and hair, manifesting with intense pruritus and effectively treated with modern medications. Because of the attached social stigma linking it with poverty and poor hygiene, patients will often attempt alternative folk-based remedies before confiding in their physicians. We conducted a comprehensive bibliographical study of historic folk literature and interviewed 70 individuals experienced in everyday application of folk medicine in order to categorize available remedies and provide a modern, scientific comment on their effectiveness and dangers. Compositions containing sulfur, copper sulfate, petroleum, coal, tar, and highly alkaline soaps and washing solutions undoubtedly have scabicidal and pediculicidal properties, but they are used either in high concentrations with greater possibility of intoxication and irritation or lower concentrations with questionable therapeutic benefit. These remedies, extracted from historical-cultural frameworks, are poorly adapted to modern standards and can lead to side-effects and complications. Physicians today have to be aware of the reasons their patients seek alternative remedies and know the substances and procedures they may use in self-healing, so as to be able to provide the help that may be needed if those complications occur.


Subject(s)
Health Education/methods , Lice Infestations/therapy , Medicine, Traditional/methods , Scabies/therapy , Self Medication/adverse effects , Cohort Studies , Croatia , Female , Humans , Interviews as Topic , Lice Infestations/diagnosis , Lice Infestations/psychology , Male , Risk Assessment , Rural Population , Scabies/diagnosis , Scabies/psychology , Self Medication/methods , Severity of Illness Index , Social Stigma , Treatment Outcome
4.
Acta Clin Croat ; 55(1): 29-34, 2016 Mar.
Article in English | MEDLINE | ID: mdl-27333715

ABSTRACT

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.


Subject(s)
Dermatitis, Atopic/psychology , Health Knowledge, Attitudes, Practice , Parents , Patient Education as Topic , Administration, Cutaneous , Adrenal Cortex Hormones/therapeutic use , Child , Child, Preschool , Dermatitis, Atopic/drug therapy , Female , Food Hypersensitivity , Humans , Infant , Male , Medication Adherence/psychology , Surveys and Questionnaires
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