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Introduction: While various demographic factors and underlying medical conditions are associated with the development of post-COVID conditions within a month after SARS-CoV-2 infection, less is known about factors associated with post-COVID symptoms that persist for 6 months or more. The aim of this review was to determine the association between underlying conditions, other risk factors, health behaviors, and the presence of symptoms ≥6 months after COVID-19.

Methods: Studies reporting on post-COVID symptoms were searched in databases, including Medline, EMBASE, Global Health, PsycInfo, Scopus, CINAHL, Proquest, and WHO COVID-19 literature, from the beginning of the pandemic until November 2022.

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Research progress in deubiquitinase OTUD3.

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August 2024

School of Economics and Management, Beijing Forestry University, Beijing 100083, China.

OTU domain-containing protein 3 (OTUD3) is a crucial deubiquitinase that exhibits significant expression differences across various disease models. OTUD3 plays a role in regulating biological functions such as apoptosis, inflammatory responses, cell cycle, proliferation, and invasion in different cell types. By deubiquitinating key substrate proteins, OTUD3 is involved in essential physiological and pathological processes, including innate antiviral immunity, neural development, neurodegenerative diseases, and cancer.

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Exp Hematol

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Hematopoietic stem cells (HSCs) are central to blood formation and play a pivotal role in hematopoietic and systemic aging. With aging, HSCs undergo significant functional changes, such as an increased stem cell pool, declined homing and reconstitution capacity, and skewed differentiation towards myeloid and megakaryocyte/platelet progenitors. These phenotypic alterations are likely due to the expansion of certain clones, known as clonal hematopoiesis (CH), which leads to disrupted hematopoietic homeostasis, including anemia, impaired immunity, higher risks of hematological malignancies, and even associations with cardiovascular disease, highlighting the broader impact of HSC aging on overall health.

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Although immune checkpoint inhibitors specifically targeting the PD-1/PD-L1 axis have exhibited remarkable clinical success, they are not uniformly effective across all patient cohorts. Immunotoxins, a novel class of cancer therapeutics, offering a promising alternative. PD-L1, which is also present in certain normal tissues, limits its suitability as an ideal target for immunotoxins.

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Introduction: BRAF mutations are the most common driver mutation in cutaneous melanoma, present in 40% of cases. Rationally-designed BRAF targeted therapy (TT) has been developed in response to this, and alongside immune checkpoint inhibitors (ICI), forms the backbone of systemic therapy options for BRAF-mutant melanoma. Various therapeutic approaches have been studied in the neoadjuvant, adjuvant and advanced settings, and there is a wealth of information to guide clinicians managing these patients.

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