4 results on '"Tarantino N"'
Search Results
2. HIV symptom severity and associated factors among young people with HIV in Ghana.
- Author
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Tarantino N, Norman B, Enimil A, Osei Asibey S, Martyn-Dickens C, Guthrie K, Kwara A, Bock B, Mimiaga MJ, and Brown L
- Subjects
- Humans, Ghana epidemiology, Male, Female, Young Adult, Adolescent, Viral Load, Cross-Sectional Studies, Fatigue etiology, Adult, HIV Infections psychology, HIV Infections complications, Severity of Illness Index
- Abstract
ABSTRACT Adolescents and young adults (young people) with HIV (YPWH) often struggle with treatment self-management. Many have symptoms due to HIV disease, medication side-effects, or comorbid conditions. Our study investigated the severity of HIV-related symptoms among YPWH aged 18-24 with detectable viral loads from an HIV clinic in Ghana ( N = 60) and potential correlates of severity across a range of factors. Results indicated that YPWH currently experienced, on average, 13 symptoms (SD = 12.33). Six of the 10 most common symptoms were from two domains: fatigue and psychological. The most common symptoms were headaches (62%), weakness (53%), and fear/worries (52%). No differences were observed in number or severity of symptoms between youth based on HIV transmission status. Bivariate correlates of symptom severity were found with six that remained significant or approached significance in a multivariate model predicting severity: living with a parent/guardian, higher perceived access to HIV care, and higher treatment readiness were associated with lower severity while greater travel time to the HIV clinic, psychological distress, and more missed clinic appointments were associated with higher severity. Our findings suggest that interventions to address symptoms among YPWH should be multilevel and include strategies (e.g., telehealth, home care) to increase access to care.
- Published
- 2024
- Full Text
- View/download PDF
3. Analysis of Immunological Biomarkers Associated With Rejection After Uterus Transplantation in Human.
- Author
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Carbonnel M, Petit M, Tarantino N, Morin V, Corneau A, Tourne M, Gueguan J, Mölne J, Akouri R, Broecker V, Vinit A, Racowsky C, Brännström M, Ayoubi JM, and Vieillard V
- Abstract
Background: Uterus transplantation (UTx) is an emerging therapy for women with uterine infertility. However, critical questions remain with this procedure including the mechanisms involved in graft rejection., Methods: In this study, we analyzed the immune profile of ectocervical biopsies from 5 patients after UTx before and during their first episode of rejection using RNA sequencing, quantitative polymerase chain reaction, and imaging mass cytometry., Results: We identified 530 upregulated and 207 downregulated genes associated with graft rejection. Enrichment databases revealed abnormalities of skin-associated genes and the immune system, in particular activation of T and B lymphocytes, and macrophages. Imaging mass cytometry confirmed these observations; in cervical biopsies of 3 women, rejection was associated with the presence of B-cell structures linked to tertiary lymphoid structures, and 2 biopsies from 1 woman with severe rejection episodes and poor prognosis of graft function (repeated miscarriage and implantation failures) were associated with an accumulation of HLA-DR- macrophages, producing granzyme B at the surface of the epithelium., Conclusions: We showed that rejection of a UTx graft was associated with major alterations of immune markers including the involvement of tertiary lymphoid structures, the most organized of which may be a sign of chronic rejection, and with an increase in HLA-DR- macrophages expressing granzyme B in the case of grade 3 rejection episodes according Mölne's classification. We identified potential emerging biomarkers to predict or diagnose graft rejection (Keratin 1 granzyme B, IL1β). These findings could lead to development of improved strategies for the identification, prevention, and/or treatment of uterus graft rejection., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
4. Comprehensive analysis of early T cell responses to acute Zika Virus infection during the first epidemic in Bahia, Brazil.
- Author
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Samri A, Bandeira AC, Gois LL, Silva CGR, Rousseau A, Corneau A, Tarantino N, Maucourant C, Queiroz GAN, Vieillard V, Yssel H, Campos GS, Sardi S, Autran B, and Rios Grassi MF
- Subjects
- Humans, Adult, Female, Male, Brazil epidemiology, CD4-Positive T-Lymphocytes immunology, Middle Aged, Young Adult, Epidemics, Lymphocyte Activation immunology, T-Lymphocytes immunology, Zika Virus Infection immunology, Zika Virus Infection epidemiology, Zika Virus immunology, Interferon-gamma metabolism, Interferon-gamma immunology, CD8-Positive T-Lymphocytes immunology
- Abstract
Background: In most cases, Zika virus (ZIKV) causes a self-limited acute illness in adults, characterized by mild clinical symptoms that resolve within a few days. Immune responses, both innate and adaptive, play a central role in controlling and eliminating virus-infected cells during the early stages of infection., Aim: To test the hypothesis that circulating T cells exhibit phenotypic and functional activation characteristics during the viremic phase of ZIKV infection., Methods: A comprehensive analysis using mass cytometry was performed on peripheral blood mononuclear cells obtained from patients with acute ZIKV infection (as confirmed by RT-PCR) and compared with that from healthy donors (HD). The frequency of IFN-γ-producing T cells in response to peptide pools covering immunogenic regions of structural and nonstructural ZIKV proteins was quantified using an ELISpot assay., Results: Circulating CD4+ and CD8+ T lymphocytes from ZIKV-infected patients expressed higher levels of IFN-γ and pSTAT-5, as well as cell surface markers associated with proliferation (Ki-67), activation ((HLA-DR, CD38) or exhaustion (PD1 and CTLA-4), compared to those from HD. Activation of CD4+ and CD8+ memory T cell subsets, including Transitional Memory T Cells (TTM), Effector Memory T cells (TEM), and Effector Memory T cells Re-expressing CD45RA (TEMRA), was prominent among CD4+ T cell subset of ZIKV-infected patients and was associated with increased levels of IFN-γ, pSTAT-5, Ki-67, CTLA-4, and PD1, as compared to HD. Additionally, approximately 30% of ZIKV-infected patients exhibited a T cell response primarily directed against the ZIKV NS5 protein., Conclusion: Circulating T lymphocytes spontaneously produce IFN-γ and express elevated levels of pSTAT-5 during the early phase of ZIKV infection whereas recognition of ZIKV antigen results in the generation of virus-specific IFN-γ-producing T cells., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Samri et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
- Full Text
- View/download PDF
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