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1.
Br J Dermatol ; 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39255051

RESUMO

BACKGROUND: T-follicular-helper (Tfh) cells form a distinct population of T-helper cells with different polarizations (type 1, type 2 and type 17) that regulates humoral responses and may participate in the pathophysiology of B-cell mediated autoimmune diseases, such as bullous pemphigoid (BP), a dermatosis mediated by auto-antibodies specific for hemidesmosomal proteins. OBJECTIVES: The aim was to evaluate the impact of superpotent topical corticosteroid (TCS) treatment, which is more effective and safer than high doses of oral corticosteroids and recommended first-line treatment of BP, on circulating Tfh cells. METHODS: We compared by flow cytometry the frequency, polarization and activation of blood Tfh cells from patients with BP at baseline and longitudinally after initiation of TCS treatment to age- and sex-matched healthy subjects. RESULTS: We observed that circulating Tfh cells were more frequent in patients with BP at baseline than in healthy subjects and exhibited an activated phenotype. We further showed a decrease of type 1 and an increase of type 17 Tfh cells in the blood of patients, which resulted in a higher (type 2+type 17) to type 1 Tfh cell ratio. This ratio correlated positively with disease severity as measured by the Bullous Pemphigoid Disease Area Index. Remarkably, along TCS treatment, although the frequency of Tfh cells returned to a level similar to control, the activated phenotype persisted. Interestingly serum IL-21 levels and the Tfh cell subset ratio, similarly to disease activity and serum anti-BP180 and anti-BP230 auto-antibodies, were decreased under the TCS treatment. CONCLUSIONS: Overall, our findings suggest an involvement of the polarization of Tfh cells in the pathophysiology of BP and open the door to a modulation of their activity for therapeutic purposes.

3.
Mol Inform ; : e202300335, 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38864978

RESUMO

Natural products have long been an important source of inspiration for medicinal chemistry and drug discovery. In the cosmetic field, they remain the major elements of the composition and serve as marketing asset. Recent research showed the implication of salt-inducible kinases on the melanin production in skin via MITF regulation. Finding new potent modulators on such target could open the way to several cosmetic applications to attenuate visible signs of photoaging and improve the tan without sun. Since virtual screening can be a powerful tool for detecting hit compounds in the early stages of a drug discovery process, we applied this method on salt-inducible kinase 2 to discover potential interesting compounds. Here, we present the different steps from the construction of a database of natural products, to the validation of a docking protocol and the results of the virtual screening. Hits from the screening were tested in vitro to confirm their efficiency and results are discussed.

4.
Addiction ; 119(7): 1211-1223, 2024 07.
Artigo em Inglês | MEDLINE | ID: mdl-38597214

RESUMO

BACKGROUND AND AIMS: Pre-clinical studies suggest that the simultaneous blockade of the α1b and 5HT2A receptors may be effective in reducing alcohol consumption. This study aimed to assess the efficacy and safety of prazosin (α1b blocker) and cyproheptadine (5HT2A blocker) combination in decreasing total alcohol consumption (TAC) in alcohol use disorder (AUD). DESIGN, SETTING AND PARTICIPANTS: This was a double-blind, parallel group, placebo-controlled, Phase 2, randomized clinical trial conducted in 32 addiction treatment centres in France. A total of 108 men and 46 women with severe AUD took part. INTERVENTION: Participants were randomly assigned to one of the following 3-month treatments: (1) low-dose group (LDG) receiving 8 mg cyproheptadine and 5 mg prazosin extended-release (ER) formulation daily; (2) high-dose group (HDG) receiving 12 mg cyproheptadine and 10 mg prazosin ER daily; and (3) placebo group (PG) receiving placebo of cyproheptadine and prazosin ER. A total of 154 patients were randomized: 54 in the PG, 54 in the LDG and 46 in the HDG. MEASUREMENTS: The primary outcome was TAC change from baseline to month 3. FINDINGS: A significant main treatment effect in the change in TAC was found in the intent-to-treat population (P = 0.039). The HDG and LDG showed a benefit in the change in TAC from baseline to month 3 compared with PG: -23.6 g/day, P = 0.016, Cohen's d = -0.44; -18.4 g/day, P = 0.048 (Bonferroni correction P < 0.025), Cohen's d = -0.36. In a subgroup of very high-risk drinking-level participants (> 100 g/day of pure alcohol for men and > 60 g/day for women), the difference between the HDG and the PG in the primary outcome was -29.8 g/day (P = 0.031, Cohen's d = -0.51). The high and low doses were well-tolerated with a similar safety profile. CONCLUSIONS: A randomized controlled trial of treatment of severe alcohol use disorder with a cyproheptadine-prazosin combination for 3 months reduced drinking by more than 23 g per day compared with placebo. A higher dose combination was associated with a larger magnitude of drinking reduction than a lower dose combination while showing similar safety profile.


Assuntos
Ciproeptadina , Quimioterapia Combinada , Prazosina , Humanos , Masculino , Método Duplo-Cego , Feminino , Ciproeptadina/uso terapêutico , Prazosina/uso terapêutico , Adulto , Pessoa de Meia-Idade , Resultado do Tratamento , Alcoolismo/tratamento farmacológico , Antagonistas de Receptores Adrenérgicos alfa 1/uso terapêutico , Antagonistas da Serotonina/uso terapêutico , França , Consumo de Bebidas Alcoólicas , Preparações de Ação Retardada , Relação Dose-Resposta a Droga
5.
Clin Exp Rheumatol ; 42(8): 1665-1668, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38526006

RESUMO

OBJECTIVES: Hand involvement in patients with systemic sclerosis (SSc) is responsible for 75% of the overall disability but varies greatly among individuals. No study has yet compared the functionalities between the two hands of SSc patients. We thus evaluated the joint limitations and extent of skin involvement in the dominant and contralateral hands. METHODS: This prospective, descriptive, comparative single-centre study enrolled SSc patients diagnosed using the ACR/EULAR criteria. We assessed limitations in the joint range of motion during active and passive mobilisation; the first commissure opening angles; the Kapandji scale and Rodnan hand scores; the digital pressures; the finger brachial pressure indices; and the number of telangiectasias, calcinosis, digital ulcerations, and painful joints on each hand. RESULTS: Thirty patients were included. Spontaneous flexion joint limitations were significantly greater in the dominant hand (p<0.0001). The Kapandji score was lower (p<0.001) and the Rodnan hand score significantly higher, for the dominant hand (p<0.001). The digital pressure was similar between the hands. CONCLUSIONS: The dominant hand exhibited significantly more skin sclerosis and mean flexion deterioration, a lower Kapandji score, and a tendency toward reduced mean extension, compared with the other hand. No vascular pathology was noted in either hand. Larger studies are needed to confirm these results and to draw therapeutic conclusions.


Assuntos
Avaliação da Deficiência , Amplitude de Movimento Articular , Escleroderma Sistêmico , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Estudos Prospectivos , Escleroderma Sistêmico/fisiopatologia , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/diagnóstico , Idoso , Adulto , Mãos/fisiopatologia , Índice de Gravidade de Doença , Telangiectasia/fisiopatologia , Telangiectasia/etiologia , Pele/patologia , Pele/irrigação sanguínea , Articulação da Mão/fisiopatologia , Estado Funcional
6.
Int J Cosmet Sci ; 46(3): 468-477, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38326978

RESUMO

BACKGROUND: Atopic dermatitis has a marked economic impact and affects the quality of life. A cosmetic compound with an innovative strategy is proposed here as a small chemical neutraligand, GPN279 (previously identified as a theophylline derivative), that binds and potently neutralizes the TARC/CCL17 chemokine, activating the Th2 cell-expressed CCR4 receptor. OBJECTIVE: Our objective was to evaluate the safety and activity of topically applied GPN279 in mild-to-moderate atopic dermatitis patients in a randomized, double-blind, placebo-controlled, parallel group trial. Such cosmetic active ingredient targeting dry skin with an atopic tendency would open a parallel strategy to the pharmaceutical approach, in particular for mild to moderate subjects, as an alternative to reduce the evolution towards severe forms of atopy. METHODS: This 4-week trial included adults with mild-to-moderate atopic dermatitis, according to the SCORAD index. Patients were randomized into two groups treated by topical applications of either an emulsion containing 0.44% GPN279 in placebo on skin lesions or the placebo (4.56% glycerin). Clinical activity was evaluated with the SCORAD as the primary objective. As secondary objectives, POEM, erythema, skin moisturization, its barrier function (TEWL) and safety were evaluated. RESULTS: Twenty-one patients in each group completed the study. SCORAD was significantly improved in the GPN279 group vs. placebo. GPN279 also significantly improved POEM, induced a rapid and significant decrease of erythema, and improved skin moisture. GPN279 and placebo were well tolerated throughout the study. CONCLUSION: A cosmetic cream comprising the CCL17 neutraligand GPN279 improved the skin barrier and physiology criteria in patients with mild-to-moderate atopic dermatitis.


GÉNÉRALITÉS: La dermatite atopique a un impact économique marqué et affecte la qualité de vie. Un composé cosmétique dote d'une stratégie innovante est proposé ici sous la forme d'un petit neutraligand chimique, le GPN279 (précédemment identifié comme un dérivé de la théophylline), qui se lie et neutralise puissamment la chimiokine TARC/CCL17, activant le récepteur CCR4 exprimé par les cellules Th2. OBJECTIF: Notre objectif était d'évaluer l'innocuité et l'activité du GPN279 appliqué localement chez des patients atteints de dermatite atopique légère à modérée dans un essai randomisé, en double aveugle contre placebo et en groupes parallèles. Un tel actif cosmétique ciblant les peaux sèches à tendance atopique ouvrirait une stratégie parallèle à l'approche pharmaceutique, notamment pour les sujets atteints de forme légère à modérée, comme alternative visant à réduire l'évolution vers des formes sévères d'atopie. MÉTHODES: Cet essai de 4 semaines incluait des adultes atteints de dermatite atopique légère à modérée, selon l'indice SCORAD. Les patients ont été randomisés en deux groupes traités par application topique sur les lésions cutanées soit d'une émulsion contenant 0,44% de GPN279 dans un placebo, soit du placebo seul (4,56% de glycérine). L'activité clinique a été évaluée selon l'indice SCORAD comme objectif principal. Les objectifs secondaires évaluaient le POEM, l'érythème, l'hydratation de la peau, sa fonction barrière (TEWL) et la sécurité. RÉSULTATS: Vingt et un patients de chaque groupe ont terminé l'étude. L'indice SCORAD a été significativement amélioré dans le groupe GPN279 par rapport au placebo. Le GPN279 a également amélioré de manière significative le POEM, a induit une diminution rapide et significative de l'érythème et amélioré l'hydratation de la peau. Le GPN279 et le placebo ont été bien tolérés tout au long de l'étude. CONCLUSION: Une crème cosmétique contenant le neutraligand CCL17 GPN279 améliore la barrière cutanée et les critères physiologiques chez les patients atteints de dermatite atopique légère à modérée.


Assuntos
Administração Tópica , Quimiocina CCL17 , Dermatite Atópica , Humanos , Dermatite Atópica/tratamento farmacológico , Método Duplo-Cego , Adulto , Feminino , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Cosméticos/administração & dosagem , Placebos/administração & dosagem
7.
JAMA Dermatol ; 160(3): 290-296, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38265821

RESUMO

Importance: The Ritux 3 trial demonstrated the short-term efficacy and safety of first-line treatment with rituximab compared with a standard corticosteroid regimen in pemphigus. No data on the long-term follow-up of patients who received rituximab as first line are available. Objective: To assess the long-term efficacy and safety of the Ritux 3 treatment regimen. Design, Setting, and Participants: This 7-year follow-up study of the Ritux 3 trial included patients with pemphigus from 25 dermatology departments in France from January 1, 2010, to December 31, 2015. Exposure: Patients were initially randomized in the rituximab plus prednisone group or prednisone-alone group. Main outcomes and measures: The primary outcome was the 5- and 7-year disease-free survival (DFS) without corticosteroids, assessed by Kaplan-Meier curves. Secondary outcomes were occurrence of relapse, occurrence of severe adverse events (SAEs), and evolution of antidesmoglein (Dsg) antibody enzyme-linked immunosorbent assay values to predict long-term relapse. Results: Of the 90 patients in the Ritux 3 trial, 83 were evaluated at the end of follow-up study visit (44 in the rituximab plus prednisone group; 39 in the prednisone-alone group) with a median (IQR) follow-up of 87.3 (79.1-97.5) months. Forty-three patients (93%) from the rituximab plus prednisone and 17 patients (39%) from the prednisone-alone group had achieved complete remission without corticosteroids at any time during the follow-up. Patients from the rituximab group had much longer 5- and 7-year DFS without corticosteroids than patients from the prednisone-alone group (76.7% and 72.1% vs 35.3% and 35.3%, respectively; P < .001), and had about half the relapses (42.2% vs 83.7%; P < .001). Patients who received rituximab as second-line treatment had shorter DFS than patients treated as first line (P = .007). Fewer SAEs were reported in the rituximab plus prednisone group compared with the prednisone-alone group, 31 vs 58 respectively, corresponding to 0.67 and 1.32 SAEs per patient, respectively (P = .003). The combination of anti-Dsg1 values of 20 or more IU/mL and/or anti-Dsg3 values of 48 or more IU/mL yielded 0.83 positive predictive value and 0.94 negative predictive value to predict long-term relapse. Conclusions and Relevance: In this secondary analysis of the Ritux 3 trail, first-line treatment of patients with pemphigus with the Ritux 3 regimen was associated with long-term sustained complete remission without corticosteroid therapy without any additional maintenance infusion of rituximab.


Assuntos
Pênfigo , Humanos , Rituximab/efeitos adversos , Pênfigo/tratamento farmacológico , Prednisona/efeitos adversos , Seguimentos , Recidiva Local de Neoplasia , Corticosteroides , Recidiva , Resultado do Tratamento
8.
JAMA Dermatol ; 159(4): 403-410, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36884234

RESUMO

Importance: Poor therapeutic results have been reported in patients with alopecia areata totalis (AT) or universalis (AU), the most severe and disabling types of alopecia areata (AA). Methotrexate, an inexpensive treatment, might be effective in AU and AT. Objective: To evaluate the efficacy and tolerance of methotrexate alone or combined with low-dose prednisone in patients with chronic and recalcitrant AT and AU. Design, Setting, and Participants: This academic, multicenter, double-blind, randomized clinical trial was conducted at 8 dermatology departments at university hospitals between March 2014 and December 2016 and included adult patients with AT or AU evolving for more than 6 months despite previous topical and systemic treatments. Data analysis was performed from October 2018 to June 2019. Interventions: Patients were randomized to receive methotrexate (25 mg/wk) or placebo for 6 months. Patients with greater than 25% hair regrowth (HR) at month 6 continued their treatment until month 12. Patients with less than 25% HR were rerandomized: methotrexate plus prednisone (20 mg/d for 3 months and 15 mg/d for 3 months) or methotrexate plus placebo of prednisone. Main Outcome and Measures: The primary end point assessed on photos by 4 international experts was complete or almost complete HR (Severity of Alopecia Tool [SALT] score <10) at month 12, while receiving methotrexate alone from the start of the study. Main secondary end points were the rate of major (greater than 50%) HR, quality of life, and treatment tolerance. Results: A total of 89 patients (50 female, 39 male; mean [SD] age, 38.6 [14.3] years) with AT (n = 1) or AU (n = 88) were randomized: methotrexate (n = 45) or placebo (n = 44). At month 12, complete or almost complete HR (SALT score <10) was observed in 1 patient and no patient who received methotrexate alone or placebo, respectively, in 7 of 35 (20.0%; 95% CI, 8.4%-37.0%) patients who received methotrexate (for 6 or 12 months) plus prednisone, including 5 of 16 (31.2%; 95% CI, 11.0%-58.7%) who received methotrexate for 12 months and prednisone for 6 months. A greater improvement in quality of life was observed in patients who achieved a complete response compared with nonresponder patients. Two patients in the methotrexate group discontinued the study because of fatigue and nausea, which were observed in 7 (6.9%) and 14 (13.7%) patients receiving methotrexate, respectively. No severe treatment adverse effect was observed. Conclusions and Relevance: In this randomized clinical trial, while methotrexate alone mainly allowed partial HR in patients with chronic AT or AU, its combination with low-dose prednisone allowed complete HR in up to 31% of patients. These results seem to be of the same order of magnitude as those recently reported with JAK inhibitors, with a much lower cost. Trial Registration: ClinicalTrials.gov Identifier: NCT02037191.


Assuntos
Alopecia em Áreas , Metotrexato , Adulto , Humanos , Masculino , Feminino , Metotrexato/efeitos adversos , Prednisona/efeitos adversos , Alopecia em Áreas/tratamento farmacológico , Qualidade de Vida , Recidiva Local de Neoplasia/tratamento farmacológico , Método Duplo-Cego , Resultado do Tratamento
9.
J Adv Res ; 44: 71-79, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35581140

RESUMO

INTRODUCTION: Bullous pemphigoid (BP) is the most common autoimmune blistering disease. It predominately afflicts the elderly and is significantly associated with increased mortality. The observation of age-dependent changes in the skin microbiota as well as its involvement in other inflammatory skin disorders suggests that skin microbiota may play a role in the emergence of BP blistering. We hypothesize that changes in microbial diversity associated with BP might occur before the emergence of disease lesions, and thus could represent an early indicator of blistering risk. OBJECTIVES: The present study aims to investigate potential relationships between skin microbiota and BP and elaborate on important changes in microbial diversity associated with blistering in BP. METHODS: The study consisted of an extensive sampling effort of the skin microbiota in patients with BP and age- and sex-matched controls to analyze whether intra-individual, body site, and/or geographical variation correlate with changes in skin microbial composition in BP and/or blistering status. RESULTS: We find significant differences in the skin microbiota of patients with BP compared to that of controls, and moreover that disease status rather than skin biogeography (body site) governs skin microbiota composition in patients with BP. Our data reveal a discernible transition between normal skin and the skin surrounding BP lesions, which is characterized by a loss of protective microbiota and an increase in sequences matching Staphylococcus aureus, a known inflammation-promoting species. Notably, Staphylococcus aureus is ubiquitously associated with BP disease status, regardless of the presence of blisters. CONCLUSION: The present study suggests Staphylococcus aureus may be a key taxon associated with BP disease status. Importantly, we however find contrasting patterns in the relative abundances of Staphylococcus hominis and Staphylococcus aureus reliably discriminate between patients with BP and matched controls. This may serve as valuable information for assessing blistering risk and treatment outcomes in a clinical setting.


Assuntos
Doenças Autoimunes , Microbiota , Penfigoide Bolhoso , Humanos , Idoso , Penfigoide Bolhoso/patologia , Penfigoide Bolhoso/terapia , Pele , Vesícula/patologia , Doenças Autoimunes/patologia
10.
J Belg Soc Radiol ; 106(1): 129, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36569390

RESUMO

Teaching Point: A thrombosed calcified aneurysm of the splenic vein is a rare complication of pancreatitis.

14.
Mediators Inflamm ; 2021: 6652791, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34557056

RESUMO

Thymus and Activation-Regulated Chemokine (TARC/CCL17) and Macrophage-Derived Chemokine (MDC/CCL22) are two key chemokines exerting their biological effect via binding and activating a common receptor CCR4, expressed at the surface of type 2 helper T (Th2) cells. By recruiting Th2 cells in the dermis, CCL17 and CCL22 promote the development of inflammation in atopic skin. The aim of this research was to develop a plant extract whose biological properties, when applied topically, could be beneficial for people with atopic-prone skin. The strategy which was followed consisted in identifying ligands able to neutralize the biological activity of CCL17 and CCL22. Thus, an in silico molecular modeling and a generic screening assay were developed to screen natural molecules binding and blocking these two chemokines. N-Feruloylserotonin was identified as a neutraligand of CCL22 in these experiments. A cornflower extract containing N-feruloylserotonin was selected for further in vitro tests: the gene expression modulation of inflammation biomarkers induced by CCL17 or CCL22 in the presence or absence of this extract was assessed in the HaCaT keratinocyte cell line. Additionally, the same cornflower extract in another vehicle was evaluated in parallel with N-feruloylserotonin for cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX) enzymatic cellular inhibition. The cornflower extract was shown to neutralize the two chemokines in vitro, inhibited COX-2 and 5-LOX, and demonstrated anti-inflammatory activities due mainly to the presence of N-feruloylserotonin. Although these findings would need to be confirmed in an in vivo study, the in vitro studies lay the foundation to explain the benefits of the cornflower extract when applied topically to individuals with atopic-prone skin.


Assuntos
Anti-Inflamatórios/farmacologia , Quimiocina CCL17/antagonistas & inibidores , Quimiocina CCL22/antagonistas & inibidores , Inibidores de Ciclo-Oxigenase 2/farmacologia , Inibidores de Lipoxigenase/farmacologia , Extratos Vegetais/farmacologia , Serotonina/análogos & derivados , Pele/efeitos dos fármacos , Zea mays/química , Células Cultivadas , Quimiocina CCL17/química , Quimiocina CCL22/química , Humanos , Simulação de Acoplamento Molecular , Extratos Vegetais/análise , Serotonina/química , Serotonina/farmacologia
15.
Psychol Belg ; 61(1): 33-45, 2021 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-33614104

RESUMO

We propose a new method to test the reliability of Fredrickson et al.'s self-objectification questionnaire (SOQ). This scale being based on a ranking, traditional reliability estimates are inappropriate. Based on generalizability theory, we suggest to compute the reliability of each subset of questions related to physical appearance vs. physical competence separately in order to average them. We applied this method to a sample of female US undergraduates (n = 395) and evidenced that the reliability of the scale is very low (corrected Cronbach's alpha = .31). We also noted that a large proportion of the sample (32%) failed to complete the scale correctly. In a second study (n = 93), we propose a Likert adaptation of the scale and show that the two dimensions of the SOQ are independent. In Study 3 (n = 195), we confirm results of Study 2 and demonstrate that the general structure of the Likert version has satisfactory model fit statistics. These observations lead us to discourage the use of the original version of the SOQ and rely on the Likert version of the Self-Objectification Questionnaire (LSOQ, see appendix).

16.
J Cosmet Dermatol ; 20(2): 691-702, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32613704

RESUMO

BACKGROUND: Purple tulip extract is a rich source of flavonoids which are powerful antioxidants and can hence be considered as an ideal candidate for use in skin care products. AIMS: We aimed to evaluate the effects of purple tulip extract on skin quality and to determine its molecular modes of interaction. METHODS: A pangenomic study on human skin fibroblasts was carried out to analyze multiple changes in gene expression. Ex vivo studies of human skin explants exposed to ultraviolet (UV) irradiation or H2 O2 were performed to assess modulations of protein expression. Finally, a clinical assay was carried out to evaluate the efficacy of purple tulip extract on skin appearance and condition of aged women. RESULTS: Genetic modulation analyses led us to infer the induction of many biological functions including cell differentiation, proliferation, migration, inflammatory responses, and matrix remodeling. The ex vivo studies revealed an enhancement of the collagen network and increased expression of glycosaminoglycans (GAG), fibronectin, and collagen VI. Finally, the clinical study highlighted the potential anti-aging properties of the purple tulip extract which decreased the relaxation of the oval face and improved skin elasticity after 28 days of treatment. Significant reductions of the length and depth of the nasolabial wrinkles were also observed. CONCLUSION: Our genomics data on the effect of purple tulip extract on the ex vivo UV-challenged skin showed that genes responsible for, among others, the upkeep of the skin, such as collagen induction, immune cell proliferation, and epidermal repair, were all up-regulated. More importantly, the clinical study corroborated these data by the visible and measurable effects of the topical purple tulip extract on the aged skin of 22 women, further demonstrating the beneficial impact of the extract on aged skin.


Assuntos
Envelhecimento da Pele , Tulipa , Idoso , Células Cultivadas , Feminino , Fibroblastos , Genômica , Humanos , Extratos Vegetais/farmacologia , Pele , Voluntários
17.
JAMA Dermatol ; 156(5): 545-552, 2020 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-32186656

RESUMO

Importance: Rituximab and short-term corticosteroid therapy are the criterion standard treatments for patients with newly diagnosed moderate to severe pemphigus. Objective: To examine factors associated with short-term relapse in patients with pemphigus treated with rituximab. Design, Setting, and Participants: This post hoc analysis of a randomized clinical trial (Comparison Between Rituximab Treatment and Oral Corticosteroid Treatment in Patients With Pemphigus [RITUX 3]) conducted from January 1, 2010, to December 31, 2015, included patients from 20 dermatology departments of tertiary care centers in France from the RITUX 3 trial and 3 newly diagnosed patients treated according to the trial protocol. Data analysis was performed from February 1 to June 30, 2019. Exposure: Patients randomly assigned to the rituximab group in the RITUX 3 trial and the 3 additional patients were treated with 1000 mg of intravenous rituximab on days 0 and 14 and 500 mg at months 12 and 18 combined with a short-term prednisone regimen. Main Outcomes and Measures: Baseline (pretreatment) clinical and biological characteristics (Pemphigus Disease Area Index [PDAI] score, ranging from 0-250 points, with higher values indicating more severe disease) and changes in anti-desmoglein (DSG) 1 and anti-DSG3 values as measured by enzyme-linked immunosorbent assay during the 3 months after rituximab treatment were compared between patients with disease relapse and those who maintained clinical remission during the first 12 months after treatment. The positive and negative predictive values of these factors were calculated. Results: Among 47 patients (mean [SD] age, 54.3 [17.0] years; 17 [36%] male and 30 [64%] female) included in the study, the mean (SD) baseline PDAI score for patients with relapsing disease was higher than that of the patients with nonrelapsing disease (54 [33] vs 28 [24]; P = .03). At month 3, 7 of 11 patients with relapsing disease (64%) vs 7 of 36 patients with nonrelapsing disease (19%) had persistent anti-DSG1 antibody values of 20 IU/mL or higher and/or anti-DSG3 antibody values of 130 IU/mL or higher (P = .01). A PDAI score of 45 or higher defining severe pemphigus and/or persistent anti-DSG1 antibody values of 20 IU/mL or higher and/or anti-DSG3 antibody values of 130 IU/mL or higher at month 3 provided a positive predictive value of 50% (95% CI, 27%-73%) and a negative predictive value of 94% (95% CI, 73%-100%) for the occurrence of relapse after rituximab. Conclusions and Relevance: The findings suggest that initial PDAI score and changes in anti-DSG antibody values after the initial cycle of rituximab might help differentiate a subgroup of patients with high risk of relapse who might benefit from maintenance rituximab infusion at month 6 from a subgroup of patients with low risk of relapse who do not need early maintenance therapy. Trial Registration: NCT00784589.


Assuntos
Fatores Imunológicos/administração & dosagem , Pênfigo/tratamento farmacológico , Prednisona/administração & dosagem , Rituximab/administração & dosagem , Adulto , Idoso , Autoanticorpos/imunologia , Desmogleína 3/imunologia , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pênfigo/fisiopatologia , Valor Preditivo dos Testes , Recidiva , Índice de Gravidade de Doença , Fatores de Tempo
18.
Psychol Sci ; 31(2): 214-223, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31961774

RESUMO

Self-objectification has been claimed to induce numerous detrimental consequences for women at the individual level (e.g., sexual dysfunction, depression, eating disorders). Additionally, at the collective level, it has been proposed that self-objectified women might themselves contribute to the maintenance of the patriarchal status quo, for instance, by participating less in collective action. In 2013, Calogero found a negative link between self-objectification and collective action, which was mediated by the adoption of gender-specific system justification. Here, we report two preregistered direct replications (PDRs) of Calogero's original study. We conducted these PDRs after three failures to replicate the positive relation between self-objectification and gender-specific system-justification belief in correlational studies. Results of the two PDRs, in which we used a Bayesian approach, supported the null hypothesis. This work has important theoretical implications because it challenges the role attributed to self-objectified women in the maintenance of patriarchy.


Assuntos
Desumanização , Ativismo Político , Autoimagem , Mulheres/psicologia , Adolescente , Adulto , Teorema de Bayes , Imagem Corporal , Feminino , Humanos , Adulto Jovem
19.
J Am Acad Dermatol ; 82(3): 575-585.e1, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29438767

RESUMO

BACKGROUND: Several European countries recently developed international diagnostic and management guidelines for pemphigus, which have been instrumental in the standardization of pemphigus management. OBJECTIVE: We now present results from a subsequent Delphi consensus to broaden the generalizability of the recommendations. METHODS: A preliminary survey, based on the European Dermatology Forum and the European Academy of Dermatology and Venereology guidelines, was sent to a panel of international experts to determine the level of consensus. The results were discussed at the International Bullous Diseases Consensus Group in March 2016 during the annual American Academy of Dermatology conference. Following the meeting, a second survey was sent to more experts to achieve greater international consensus. RESULTS: The 39 experts participated in the first round of the Delphi survey, and 54 experts from 21 countries completed the second round. The number of statements in the survey was reduced from 175 topics in Delphi I to 24 topics in Delphi II on the basis of Delphi results and meeting discussion. LIMITATIONS: Each recommendation represents the majority opinion and therefore may not reflect all possible treatment options available. CONCLUSIONS: We present here the recommendations resulting from this Delphi process. This international consensus includes intravenous CD20 inhibitors as a first-line therapy option for moderate-to-severe pemphigus.


Assuntos
Fatores Imunológicos/administração & dosagem , Pênfigo/diagnóstico , Pênfigo/terapia , Plasmaferese , Guias de Prática Clínica como Assunto , Academias e Institutos/normas , Administração Intravenosa , Antígenos CD20/imunologia , Terapia Combinada/métodos , Terapia Combinada/normas , Consenso , Técnica Delphi , Dermatologia/métodos , Dermatologia/normas , Quimioterapia Combinada/métodos , Quimioterapia Combinada/normas , Europa (Continente) , Glucocorticoides/administração & dosagem , Humanos , Pênfigo/imunologia , Rituximab/administração & dosagem , Índice de Gravidade de Doença
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