Publications by authors named "Sei Samukawa"

Background: Integrase strand transfer inhibitors (INSTIs) are recommended as first-line ART for people living with HIV (PLWH) in most guidelines. The INSTI-resistance-associated mutation E157Q, a highly prevalent (2%-5%) polymorphism of the HIV-1 (human immunodeficiency virus type 1) integrase gene, has limited data on optimal first-line ART regimens. We assessed the virological outcomes of various first-line ART regimens in PLWH with E157Q in real-world settings.

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Article Synopsis
  • - Late HIV diagnosis in Japan is a significant issue, particularly among young men who have sex with men (MSM) in urban areas, and the study aimed to understand various factors contributing to this problem, including demographics and clinical aspects.
  • - The research analyzed anonymized data from nearly 10,000 newly diagnosed HIV cases from 2003 to 2019, revealing that 71.2% of participants experienced late diagnosis, with a median CD4 count of 221 cells/μl at diagnosis.
  • - Key factors linked to late HIV diagnosis included older age, heterosexual transmission, living outside of Tokyo, co-infection with hepatitis C, and not being part of a genetic cluster, while a specific HIV subtype (CRF
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Aims: People living with HIV are at a high risk for cardiovascular disease owing to antiretroviral therapy use and chronic inflammation. There is limited evidence on the evaluation of serum lipid levels through lifestyle modification. This study aims to evaluate the effect of a smartphone application-based diet and exercise improvement program on men living with HIV and dyslipidemia.

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Cryptococcal meningitis (CM) is a life-threatening disease that primarily affects patients with human immunodeficiency virus (HIV). Antifungal therapy with antiretroviral treatment (ART) usually leads to the clinical remission of CM; however, in some cases, these treatments exacerbate intracranial inflammation because of paradoxical inflammatory reaction or immune reconstitution inflammatory syndrome (IRIS). Here we report two CM cases that presented atypical clinical courses attributed to paradoxical inflammatory reactions.

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Pyrin/TRIM20 is expressed in the neutrophils and monocytes/macrophages and regulates caspase-1 activation and interleukin-1β maturation. Although the mutations in the PRY/SPRY domain of pyrin cause familial Mediterranean fever (FMF), the mechanism of how mutated pyrin provokes excessive inflammation in FMF patients is not well understood. The present study investigated the role of pyrin/TRIM20 in inflammation and the pathogenesis of FMF.

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The clinical characteristics of Pneumocystis jirovecii pneumonia (PCP) in patients with immunodeficiency virus (HIV) infection (HIV-PCP) differ from those in patients without HIV infection (non-HIV-PCP). We analyzed 31 adult HIV-PCP cases and 44 non-HIV-PCP cases between 2008 and 2018. The symptomatic period before the diagnosis was shorter in non-HIV-PCP (5 [3-8] days vs.

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Objectives: To investigate the association between single nucleotide polymorphisms (SNPs) in the adiponectin-encoding gene ADIPOQ and changes in serum lipid levels in HIV-1-infected patients after antiretroviral therapy (ART).

Methods: ART-naïve HIV-1-infected patients were recruited to this prospective analysis. SNP +45 and SNP +276 genotype was determined by direct sequencing.

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Objectives: Although "clinical remission" has been a realistic goal of treatment in rheumatoid arthritis (RA), there is evidence that subclinical synovitis is associated with ongoing structural damage even after clinical remission is achieved. In the study reported here, we assessed whether ultrasonography (US) can predict progressive joint destruction during clinical remission of RA.

Methods: Thirty-one patients with RA in clinical remission based on the disease activity score in 28 joints were recruited for this study.

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Behçet's disease is a systemic inflammatory disease presented with recurrent oral aphtha, cutaneous manifestations, uveitis, and genital ulcer. The etiology of Behçet's disease is still unknown, but both genetic background and environmental factors are thought to be important in the pathogenesis of Behçet's disease. Behçet's disease has long been regarded as a Th1 type autoimmune disease, because of the association with HLA-B51 and hyperreactivity against streptococcal antigen.

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Article Synopsis
  • * The study found that while established leukemic cell lines express low levels of HO-1, primary AML cells and normal monocytes express high levels, regulated by the interplay of transcription factors Bach1 and Nrf2.
  • * Reducing HO-1 in AML cells makes them more susceptible to chemotherapy, while reducing Bach1 increases HO-1 levels and cell survival, suggesting Bach1 could be targeted for new AML treatments.
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