175 research outputs found

    Uso de óleos essenciais de cravo-da-índia, melaleuca, eucalipto e menta na sedação de peixe.

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    Com objetivo de avaliar o efeito no comportamento, tempo para sedação e tempo para recuperação de soluções preparadas com óleos essenciais extraídos de quatro tipos vegetais, com a finalidade de reduzir estresse dos peixes.Organizado por: Sílvio Ricardo Maurano; AQUACIÊNCIA 2012

    Sistema de defesa antioxidativo de plantas de arroz de terras altas (Oryza sativa L.) cultivadas sob deficiência hídrica.

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    O estudo sobre os principais mecanismos bioquímico-moleculares utilizados pelas plantas para responder a esse tipo de estresse abiótico, se torna, portanto, essencial. Objetivou-se avaliar o sistema de defesa antioxidativo, um dos eventos metabólicos ativado sob condição de estresse, por meio da determinação da atividade da superóxido dismutase (SOD ? EC 1.15.1.1) e da catalase (CAT ? EC.1.11.1.6).Pôster - pós-graduação

    Overview of the molecular determinants contributing to the expression of Psoriasis and Psoriatic Arthritis phenotypes

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    Psoriasis and psoriatic arthritis are multifactorial chronic disorders whose etiopathogenesis essentially derives from the alteration of several signalling pathways and the co-occurrence of genetic, epigenetic and non-genetic susceptibility factors that altogether affect the functional and structural property of the skin. Although shared and differential susceptibility genes and molecular pathways are known to contribute to the onset of pathological phenotypes, further research is needed to dissect the molecular causes of psoriatic disease and its progression towards Psoriatic Arthritis. This review will therefore be addressed to explore differences and similarities in the etiopathogenesis and progression of both disorders, with a particular focus on genes involved in the maintenance of the skin structure and integrity (keratins and collagens), modulation of patterns of recognition (through Toll-like receptors and dectin-1) and immuno-inflammatory response (by NLRP3-dependent inflammasome) to microbial pathogens. In addition, special emphasis will be given to the contribution of epigenetic elements (methylation pattern, non-coding RNAs, chromatin modifiers and 3D genome organization) to the etiopathogenesis and progression of psoriasis and psoriatic arthritis. The evidence discussed in this review highlights how the knowledge of patients' clinical and (epi)genomic make-up could be helpful for improving the available therapeutic strategies for psoriasis and psoriatic arthritis treatment

    Trifarotene: a current review and perspectives in dermatology

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    Retinoids have numerous applications in inflammatory, dyskeratotic, and oncohematology diseases. Retinoids have now reached the fourth generation, progressively reducing toxicity whilst increasing their efficacy. Trifarotene is a new fourth-generation retinoid with a selective action on RAR-γ. In this review, we reported the trials—both concluded and in progress—including the use of trifarotene in dermatological diseases. Studies were identified by searching electronic databases (MEDLINE, EMBASE, PubMed, Cochrane, Trials.gov) from 2012 to today and reference lists of respective articles. Only articles published in English language were included. Randomized trials evaluating trifarotene tolerability, safety, and efficacy in congenital ichthyosis and acne have demonstrated great results and mild side effects, leading to the approval by the FDA of trifarotene for the treatment of lamellar ichthyosis in 2014, and of acne vulgaris in October 2019. No high-quality randomized clinical trials have evaluated the treatment of primary cutaneous lymphomas with trifarotene. Finally, we are hypothesizing future perspectives in the treatment of non-melanoma skin cancers, fungal infections, photoaging, and hand-foot skin reactions with trifarotene

    Eficiência alimentar de rações com diferentes níveis proteicos para o peixe ornamental Colisa lalia.

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    Objetivando conhecer o melhor nível proteico para terminação do crescimento de colisa-lalia, utilizou-se cinco tratamentos com cinco repetições em delineamento inteiramente casualizado. Cada unidade experimental compreendia a média de características mensuradas em seis peixes.Organizado por: Sílvio Ricardo Maurano; AQUACIÊNCIA 2012

    Aspectos fisiológicos e agronômicos de feijoeiro comum cultivado sob condições de baixa disponibilidade hídrica.

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    O objetivo deste trabalho foi avaliar aspectos fisiológicos e agronômicos de genótipos de feijoeiro comum, com características contrastantes para tolerância à deficiência hídrica

    Biomassa microbiana do solo cultivado com feijoeiro comum irrigado em plantio direto.

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    Esse estudo objetivou avaliar a biomassa microbiana no solo, em sistema plantio direto, cultivado com feijoeiro comum irrigado, em sucessão a diferentes plantas de cobertura, com ou sem aplicação de adubo nitrogenado

    Interaction of Pelargonium sidoides Compounds with Lactoferrin and SARS-CoV-2: Insights from Molecular Simulations

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    (1) Background: Pelargonium sidoides extracts and lactoferrin are two important natural, anti-inflammatory, and antiviral agents, which can interfere with the early stages of SARS-CoV-2 infection. Molecular docking and molecular dynamics simulation approaches have been applied to check for the occurrence of interactions of the Pelargonium sidoides compounds with lactoferrin and with SARS-CoV-2 components. (2) Methods: Computational methods have been applied to confirm the hypothesis of a direct interaction between PEL compounds and the lactoferrin protein and between Pelargonium sidoides compounds and SARS-CoV-2 Spike, 3CLPro, RdRp proteins, and membrane. Selected high-score complexes were structurally investigated through classical molecular dynamics simulation, while the interaction energies were evaluated using the molecular mechanics energies combined with generalized Born and surface area continuum solvation method. (3) Results: Computational analyses suggested that Pelargonium sidoides extracts can interact with lactoferrin without altering its structural and dynamical properties. Furthermore, Pelargonium sidoides compounds should have the ability to interfere with the Spike glycoprotein, the 3CLPro, and the lipid membrane, probably affecting the functional properties of the proteins inserted in the double layer. (4) Conclusion: Our findings suggest that Pelargonium sidoides may interfere with the mechanism of infection of SARS-CoV-2, especially in the early stages

    A Real-Life Study on the Use of Tildrakizumab in Psoriatic Patients

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    tildrakizumab is a humanized IgG1 kappa monoclonal antibody that selectively targets the p19 subunit of interleukin IL-23, thereby inhibiting the IL-23/IL-17 axis, which is primarily implicated in the immunopathogenesis of psoriasis. Tildrakizumab is approved for the treatment of moderate-to-severe plaque-type psoriasis in adults based on the evidence of two randomized and controlled phase-III clinical trials (reSURFACE 1 and reSURFACE 2). Here, we report our real-life experience treating 53 psoriatic patients (19 female and 34 male) who were administered tildrakizumab every 12 weeks and received follow-ups over 52 weeks. descriptive and inferential statistical analyses were performed, in particular the psoriasis area and severity Index (PASI), dermatology life quality Index (DLQI) and, if applicable, the Nail Psoriasis Severity Index (NAPSI) and Palmoplantar psoriasis physician global assessment (PPPGA). these were assessed at baseline and after different timepoints (weeks) during the follow-up period. we described and evaluated demographical and epidemiological characteristics in our cohort group, focusing on comorbidities. In this group, 35.9% of patients were female and 64.1% were male, with 47.1% being smokers and with a mean age of 51.2 years. a total of 37.7% of these patients was affected by scalp psoriasis; regarding comorbidities, hypertension was the most frequent (32.5%), followed by psoriatic arthritis (PsA) (18.60%) and diabetes (13.9%). at week 52, 93%, 90.2% and 77% of patients achieved a PASI reduction >= 75% (PASI 75), PASI 90 and PASI 100, respectively. In addition, NAPSI, PPPGA and DLQI scores were significantly reduced by week 52. In our cohort of complex psoriasis patients, disease remission began at the end of the fourth week of treatment and remained constant from week 16 to week 52
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