Consulta: subjectFacets:"Psoriasis"
Registros recuperados: 6
Data/hora: 11/06/2024 11:43:50

Polymorphism of the catechol-O-methyltransferase gene   in Han Chinese patients with psoriasis vulgaris
Provedor de dados: 74
Autores: Gao,Lin; Gao,Lin; Li,Hong; Li,Hong; Li,Kai; Li,Kai; Shen,Zhu; Liu,Ling; Li,Chunying; Zhang,Zhengdong; Liu,Yufeng.
Psoriasis vulgaris is defined by a series of linked cellular changes in the skin: hyperplasia of epidermal keratinocytes, vascular hyperplasia and ectasia, and infiltration of T lymphocytes, neutrophils and other types of leukocytes in the affected skin. Catechol-O-methyltransferase ( COMT )  158  polymorphism can reduce the activity of the COMT enzyme that may trigger defective differentiation of keratinocytes in psoriasis. Immunocytes can degrade and inactivate catecholamines via monamine oxidase (MAO) and COMT in the cells. We hypothesized that the  COMT-158  G  &gt;  A  polymorphism was associated with the risk of psoriasis vulgaris in Han Chinese people. In a hospital-based case-control study, 524 patients with psoriasis vulgaris and 549...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: COMT; Gene polymorphism; Genetic susceptibility; Psoriasis.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100005

Decreased brain-derived neurotrophic factor plasma levels in psoriasis patients
Provedor de dados: 56
Autores: Brunoni,A.R.; Lotufo,P.A.; Sabbag,C.; Goulart,A.C.; Santos,I.S.; Benseñor,I.M.
Brain-derived neurotrophic factor (BDNF) is associated with neuroplasticity and synaptic strength, and is decreased in conditions associated with chronic stress. Nevertheless, BDNF has not yet been investigated in psoriasis, a chronic inflammatory systemic disease that is exacerbated by stress. Therefore, our aim was to determine BDNF plasma levels in psoriasis patients and healthy controls. Adult patients (n=94) presenting with psoriasis for at least 1 year were enrolled, and age- and gender-matched with healthy controls (n=307) from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Participants had neither a previous history of coronary artery disease nor current episode of major depression. BDNF plasma levels were determined using the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brain derived neurotrophic factor; Psoriasis; Neurotrophins; Psychological stress; Case-control study.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000800711

Measurement of epidermal thickness in a patient with psoriasis by computer-supported image analysis
Provedor de dados: 56
Autores: Alper,M.; Kavak,A.; Parlak,A.H.; Demirci,R.; Belenli,I.; Yesildal,N.
The aim of the present study was to measure full epidermal thickness, stratum corneum thickness, rete length, dermal papilla widening and suprapapillary epidermal thickness in psoriasis patients using a light microscope and computer-supported image analysis. The data obtained were analyzed in terms of patient age, type of psoriasis, total body surface area involvement, scalp and nail involvement, duration of psoriasis, and family history of the disease. The study was conducted on 64 patients and 57 controls whose skin biopsies were examined by light microscopy. The acquired microscopic images were transferred to a computer and measurements were made using image analysis. The skin biopsies, taken from different body areas, were examined for different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psoriasis; Epidermis; Thickness; Computer-supported image analysis.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000100015

Psoriasis severity and hypothalamic-pituitary-adrenal axis function: results from the CALIPSO study
Provedor de dados: 56
Autores: Brunoni,A.R.; Santos,I.S.; Sabbag,C.; Lotufo,P.A.; Benseñor,I.M.
Psoriasis is a chronic inflammatory disease that significantly impacts life quality, being associated with stress and mental disorders. We investigated whether the activity of the hypothalamic-pituitary-adrenal (HPA) axis was associated with psoriasis severity, daily life stress and anxiety, and depressive symptoms. In this ancillary study, which was part of the CALIPSO (coronary artery calcium in psoriasis) study, saliva was collected from 102 patients with psoriasis immediately upon awakening, 30, and 60 min after awakening, at 2:00 pm and at bedtime (five time points) to determine salivary cortisol levels. We used Pearson's correlation coefficient to evaluate the association of clinical and psychopathological variables with HPA activity. We found a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psoriasis; Cortisol; HPA function; Clinical study.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001201102

CD19+ B cell subsets in the peripheral blood and skin lesions of psoriasis patients and their correlations with disease severity
Provedor de dados: 56
Autores: Lu,J.; Ding,Y.; Yi,X.; Zheng,J.
T lymphocytes are important in the pathogenesis of psoriasis, and increasing evidence indicates that B cells also play an important role. The mechanisms of action, however, remain unclear. We evaluated the ratios of CD19+ B cells in peripheral blood mononuclear cells (PBMCs) from 157 patients with psoriasis (65 patients with psoriasis vulgaris, 32 patients with erythrodermic psoriasis, 30 patients with arthropathic psoriasis, and 30 patients with pustular psoriasis) and 35 healthy controls (HCs). Ratios of CD19+ B cells in skin lesions were compared with non-lesions in 7 erythrodermic psoriasis patients. The Psoriasis Area Severity Index (PASI) was used to measure disease severity. CD19+ B cell ratios in PBMCs from psoriasis vulgaris (at both the active...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psoriasis; B-lymphocytes; B-lymphocyte subsets; Psoriasis Area Severity Index (PASI); Flow cytometry.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000900706

Ustekinumab treats psoriasis by suppressing RORC and T-box but its suppression of GATA restrains its efficacy
Provedor de dados: 60
Autores: Liu,Lun-Fei; Chen,Ji-Su; Shen,Ji-Yang; Dou,Ting-Ting; Zhou,Jiong; Cai,Sui-Qing; Zheng,Min.
Psoriasis is a T-cell mediated disease that involves IL-23/Th17 and IL-12/Th1 axes. Ustekinumab, a fully human monoclonal antibody targeting the p40 subunit of both IL-12 and IL-23, has proven to be efficient and safe for treating patients with psoriasis. Yet, there have been no reports with human skin/blood samples that would elucidate the molecular mechanisms by which ustekinumab calms psoriasis skin lesions. To investigate the efficacy and molecular pathway (RORC, t-BOX and GATA) of ustekinumab in treating patients with psoriasis skin lesions. A total of 30 patients with psoriasis were randomized into placebo group and treatment group. PASI of each patient was calculated at 0, 12 and 24 weeks post-treatment. The mRNA levels of RORC, t-BOX and GATA in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psoriasis; Ustekinumab/efficacy; Biologic agents.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000400615