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  1. Article ; Online: Minimum data set for treatment effectiveness in pyoderma gangrenosum (MIDSTEP): an international protocol of an e-Delphi study to develop a clinical physician-driven treatment effectiveness registry on behalf of the UPGRADE initiative.

    Haddadin, Olivia M / Jacobson, Michael E / Chen, Diana M / Croitoru, David O / Dissemond, Joachim / Gontijo, Joao Renato V / Hampton, Philip J / Kelly, Robert I / Marzano, Angelo Valerio / Tada, Yayoi / Gerbens, Louise A A / Ortega-Loayza, Alex G

    Archives of dermatological research

    2023  Volume 315, Issue 10, Page(s) 2913–2919

    Abstract: Pyoderma gangrenosum (PG) is a rare inflammatory condition with an immense disease burden that remains understudied. With limited approved treatments and low-quality clinical evidence, PG continues to have poor patient outcomes. Unfortunately, ... ...

    Abstract Pyoderma gangrenosum (PG) is a rare inflammatory condition with an immense disease burden that remains understudied. With limited approved treatments and low-quality clinical evidence, PG continues to have poor patient outcomes. Unfortunately, improvement in PG treatments and patient care is based on additional research endeavors that can only be developed from existing high-quality data. The following protocol outlines the development of the Minimum Data Set for Treatment Effectiveness in Pyoderma gangrenosum (MIDSTEP), a core set of domains and domain items for the Pyoderma Gangrenosum Treatment Effectiveness (PyGaTE) international registry. The outcomes and benefits are focused on providing real-world data for physicians to improve their clinical decisions on PG treatment and inform clinical trial design, promoting clinical research among the international scientific community. MIDSTEP is a multi-phase project. The first phase will produce a domain item list from a literature review to take into the second phase which would finalize the core data set by an e-Delphi exercise. There will be a single stakeholder group participating together in the e-Delphi consisting of PG experts (healthcare providers, researchers, methodologists, industry representatives, and regulators), ulcerative PG patients, and PG patient advocates. The methodology outlined in the protocol is a systematic method based on several guidelines through COMET and established dermatologic registries and outcome sets with systematic methodologies of their own. The third phase will identify the instruments for the items, the 'when to measure' the items, and the platform for the registry. The last phase is the implementation and continued maintenance of the international registry PyGaTE. By solidifying a consensus on standardized outcomes and collecting information on PG treatment effectiveness in a centralized database, existing treatments can be compared more systematically and analyzed with increased evidence. MIDSTEP and the PyGaTE international registry will have the ambitious goal to generate and disseminate real-world data that can be used by all stakeholders to improve health outcomes for PG patients. Future potential for the outcome of this project includes the development of a gold-standard PG treatment.
    MeSH term(s) Humans ; Pyoderma Gangrenosum/drug therapy ; Delphi Technique ; Treatment Outcome ; Registries ; Physicians ; Research Design ; Review Literature as Topic
    Language English
    Publishing date 2023-09-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 130131-7
    ISSN 1432-069X ; 0340-3696
    ISSN (online) 1432-069X
    ISSN 0340-3696
    DOI 10.1007/s00403-023-02729-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Pyoderma gangrenosum: a review with special emphasis on Latin America literature.

    Rodríguez-Zúñiga, Milton José Max / Heath, Michael S / Gontijo, João Renato Vianna / Ortega-Loayza, Alex G

    Anais brasileiros de dermatologia

    2019  Volume 94, Issue 6, Page(s) 729–743

    Abstract: Pyoderma gangrenosum is a neutrophilic dermatosis characterized by chronic ulcers due to an abnormal immune response. Despite the existence of diagnostic criteria, there is no gold standard for diagnosis or treatment. In Latin America, recognizing and ... ...

    Abstract Pyoderma gangrenosum is a neutrophilic dermatosis characterized by chronic ulcers due to an abnormal immune response. Despite the existence of diagnostic criteria, there is no gold standard for diagnosis or treatment. In Latin America, recognizing and treating pyoderma gangrenosum is even more challenging since skin and soft tissue bacterial and non-bacterial infections are common mimickers. Therefore, this review aims to characterize reported cases of pyoderma gangrenosum in this region in order to assist in the assessment and management of this condition. Brazil, Mexico, Argentina, and Chile are the countries in Latin America that have reported the largest cohort of patients with this disease. The most frequent clinical presentation is the ulcerative form and the most frequently associated conditions are inflammatory bowel diseases, inflammatory arthropaties, and hematologic malignancies. The most common treatment modalities include systemic corticosteroids and cyclosporine. Other reported treatments are methotrexate, dapsone, and cyclophosphamide. Finally, the use of biological therapy is still limited in this region.
    MeSH term(s) Diagnosis, Differential ; Humans ; Latin America/epidemiology ; Prevalence ; Pyoderma Gangrenosum/diagnosis ; Pyoderma Gangrenosum/epidemiology ; Pyoderma Gangrenosum/pathology ; Pyoderma Gangrenosum/therapy
    Language English
    Publishing date 2019-11-01
    Publishing country Spain
    Document type Journal Article ; Systematic Review
    ZDB-ID 433655-0
    ISSN 1806-4841 ; 0365-0596
    ISSN (online) 1806-4841
    ISSN 0365-0596
    DOI 10.1016/j.abd.2019.06.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Selection and validation of reference genes by RT-qPCR under photoperiodic induction of flowering in sugarcane (Saccharum spp.).

    da Silva Santos, Paulo H / Manechini, João R Vieira / Brito, Michael S / Romanel, Elisson / Vicentini, Renato / Scarpari, Maximiliano / Jackson, Stephen / Pinto, Luciana R

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 4589

    Abstract: Although reference genes have previously been used in the expression analysis of genes involved in sugarcane flowering they had not been experimentally validated for stability and consistency of expression between different samples over a wide range of ... ...

    Abstract Although reference genes have previously been used in the expression analysis of genes involved in sugarcane flowering they had not been experimentally validated for stability and consistency of expression between different samples over a wide range of experimental conditions. Here we report the analysis of candidate reference genes in different tissue types, at different temporal time-points, in both short and long day photoperiodic treatments. The stability of the candidate reference genes in all conditions was evaluated with NormFinder, BestKeeper, and RefFinder algorithms that complement each other for a more robust analysis. As the Normfinder algorithm was more appropriate for our experimental conditions, greater emphasis was placed on Normfinder when choosing the most stable genes. UBQ1 and TUB were shown to be the most stable reference genes to use for normalizing RT-qPCR gene expression data during floral induction, whilst 25SrRNA1 and GAPDH were the least stable. Their use as a reference gene pair was validated by analyzing the expression of two differentially expressed target genes (PIL5 and LHP1). The UBQ1/TUB reference genes combination was able to reveal small significant differences in gene expression of the two target genes that were not detectable when using the least stable reference gene combination. These results can be used to inform the choice of reference genes to use in the study of the sugarcane floral induction pathway. Our work also demonstrates that both PIL5 and LHP1 are significantly up-regulated in the initial stages of photoperiodic induction of flowering in sugarcane.
    MeSH term(s) Algorithms ; Flowers ; Genes, Plant ; Photoperiod ; Reproducibility of Results ; Saccharum/genetics ; Saccharum/physiology
    Language English
    Publishing date 2021-02-25
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Validation Study
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-83918-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Transcriptomic Analysis of Changes in Gene Expression During Flowering Induction in Sugarcane Under Controlled Photoperiodic Conditions.

    Manechini, João Ricardo Vieira / Santos, Paulo Henrique da Silva / Romanel, Elisson / Brito, Michael Dos Santos / Scarpari, Maximiliano Salles / Jackson, Stephen / Pinto, Luciana Rossini / Vicentini, Renato

    Frontiers in plant science

    2021  Volume 12, Page(s) 635784

    Abstract: Flowering is of utmost relevance for the agricultural productivity of the sugarcane bioeconomy, but data and knowledge of the genetic mechanisms underlying its photoperiodic induction are still scarce. An understanding of the molecular mechanisms that ... ...

    Abstract Flowering is of utmost relevance for the agricultural productivity of the sugarcane bioeconomy, but data and knowledge of the genetic mechanisms underlying its photoperiodic induction are still scarce. An understanding of the molecular mechanisms that regulate the transition from vegetative to reproductive growth in sugarcane could provide better control of flowering for breeding. This study aimed to investigate the transcriptome of +1 mature leaves of a sugarcane cultivar subjected to florally inductive and non-inductive photoperiodic treatments to identify gene expression patterns and molecular regulatory modules. We identified 7,083 differentially expressed (DE) genes, of which 5,623 showed significant identity to other plant genes. Functional group analysis showed differential regulation of important metabolic pathways involved in plant development, such as plant hormones (i.e., cytokinin, gibberellin, and abscisic acid), light reactions, and photorespiration. Gene ontology enrichment analysis revealed evidence of upregulated processes and functions related to the response to abiotic stress, photoprotection, photosynthesis, light harvesting, and pigment biosynthesis, whereas important categories related to growth and vegetative development of plants, such as plant organ morphogenesis, shoot system development, macromolecule metabolic process, and lignin biosynthesis, were downregulated. Also, out of 76 sugarcane transcripts considered putative orthologs to flowering genes from other plants (such as
    Language English
    Publishing date 2021-06-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2021.635784
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The Complexity of Tobacco Smoke-Induced Mutagenesis in Head and Neck Cancer.

    Torrens, Laura / Moody, Sarah / de Carvalho, Ana Carolina / Kazachkova, Mariya / Abedi-Ardekani, Behnoush / Cheema, Saamin / Senkin, Sergey / Cattiaux, Thomas / Cortez Cardoso Penha, Ricardo / Atkins, Joshua R / Gaborieau, Valérie / Chopard, Priscilia / Carreira, Christine / Abbasi, Ammal / Bergstrom, Erik N / Vangara, Raviteja / Wang, Jingwei / Fitzgerald, Stephen / Latimer, Calli /
    Diaz-Gay, Marcos / Jones, David / Teague, Jon / Ribeiro Pinto, Felipe / Kowalski, Luiz Paulo / Polesel, Jerry / Giudici, Fabiola / de Oliveira, José Carlos / Lagiou, Pagona / Lagiou, Areti / Vilensky, Marta / Mates, Dana / Mates, Ioan N / Arantes, Lidia Mrb / Reis, Rui / Podesta, Jose Roberto V / von Zeidler, Sandra V / Holcatova, Ivana / Curado, Maria Paula / Canova, Cristina / Fabianova, Elenora / Rodríguez-Urrego, Paula A / Humphreys, Laura / Alexandrov, Ludmil B / Brennan, Paul / Stratton, Michael R / Perdomo, Sandra

    medRxiv : the preprint server for health sciences

    2024  

    Abstract: Tobacco smoke, alone or combined with alcohol, is the predominant cause of head and neck cancer (HNC). Here, we further explore how tobacco exposure contributes to cancer development by mutational signature analysis of 265 whole-genome sequenced HNC from ...

    Abstract Tobacco smoke, alone or combined with alcohol, is the predominant cause of head and neck cancer (HNC). Here, we further explore how tobacco exposure contributes to cancer development by mutational signature analysis of 265 whole-genome sequenced HNC from eight countries. Six tobacco-associated mutational signatures were detected, including some not previously reported. Differences in HNC incidence between countries corresponded with differences in mutation burdens of tobacco-associated signatures, consistent with the dominant role of tobacco in HNC causation. Differences were found in the burden of tobacco-associated signatures between anatomical subsites, suggesting that tissue-specific factors modulate mutagenesis. We identified an association between tobacco smoking and three additional alcohol-related signatures indicating synergism between the two exposures. Tobacco smoking was associated with differences in the mutational spectra and repertoire of driver mutations in cancer genes, and in patterns of copy number change. Together, the results demonstrate the multiple pathways by which tobacco smoke can influence the evolution of cancer cell clones.
    Language English
    Publishing date 2024-04-17
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.04.15.24305006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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