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1.
Am J Transplant ; 22(5): 1430-1441, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34990047

RESUMO

Cytomegalovirus (CMV) persists as the most frequent opportunistic infection among solid organ transplant recipients. This multicenter trial aimed to test whether treatment with everolimus (EVR) could decrease the incidence of CMV DNAemia and disease. We randomized 186 CMV seropositive kidney transplant recipients in a 1:1 ratio to receive EVR or mycophenolic acid (MPA) in association with basiliximab, cyclosporin, and steroids and 87 in each group were analyzed. No universal prophylaxis was administered to either group. The composite primary endpoint was the presence of CMV DNAemia, CMV treatment, graft loss, death, and discontinuation of the study at 6 months posttransplant. In the modified intent-to-treat analysis, 42 (48.3%) and 70 (80.5%) patients in the EVR and MPA groups reached the primary endpoint (OR = 0.21, 95% CI: 0.11-0.43, p < .0001). Fewer patients of the EVR group received treatment for CMV (21.8% vs. 47.1%, p = .0007). EVR was discontinued in 31 (35.6%) patients. Among the 56 patients with ongoing EVR treatment, only 7.4% received treatment for CMV. In conclusion, EVR prevents CMV DNAemia requiring treatment in seropositive recipients as long as it is tolerated and maintained.


Assuntos
Infecções por Citomegalovirus , Transplante de Rim , Antivirais/uso terapêutico , Citomegalovirus , Infecções por Citomegalovirus/tratamento farmacológico , Infecções por Citomegalovirus/epidemiologia , Infecções por Citomegalovirus/etiologia , Everolimo/uso terapêutico , Humanos , Imunossupressores/efeitos adversos , Incidência , Transplante de Rim/efeitos adversos , Ácido Micofenólico/uso terapêutico , Transplantados
2.
J Am Soc Nephrol ; 33(1): 121-137, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34725108

RESUMO

BACKGROUND: The reported association of mTOR-inhibitor (mTORi) treatment with a lower incidence of cytomegalovirus (CMV) infection in kidney transplant recipients (KTR) who are CMV seropositive (R+) remains unexplained. METHODS: The incidence of CMV infection and T-cell profile was compared between KTRs treated with mTORis and mycophenolic acid (MPA), and in vitro mTORi effects on T-cell phenotype and functions were analyzed. RESULTS: In KTRs who were R+ and treated with MPA, both αß and γδ T cells displayed a more dysfunctional phenotype (PD-1+, CD85j+) at day 0 of transplantation in the 16 KTRs with severe CMV infection, as compared with the 17 KTRs without or with spontaneously resolving CMV infection. In patients treated with mTORis (n=27), the proportion of PD-1+ and CD85j+ αß and γδ T cells decreased, when compared with patients treated with MPA (n=44), as did the frequency and severity of CMV infections. mTORi treatment also led to higher proportions of late-differentiated and cytotoxic γδ T cells and IFNγ-producing and cytotoxic αß T cells. In vitro, mTORis increased proliferation, viability, and CMV-induced IFNγ production of T cells and decreased PD-1 and CD85j expression in T cells, which shifted the T cells to a more efficient EOMESlow Hobithigh profile. In γδ T cells, the mTORi effect was related to increased TCR signaling. CONCLUSION: Severe CMV replication is associated with a dysfunctional T-cell profile and mTORis improve T-cell fitness along with better control of CMV. A dysfunctional T-cell phenotype could serve as a new biomarker to predict post-transplantation infection and to stratify patients who should benefit from mTORi treatment. CLINICAL TRIAL REGISTRY NAME AND REGISTRATION NUMBER: Proportion of CMV Seropositive Kidney Transplant Recipients Who Will Develop a CMV Infection When Treated With an Immunosuppressive Regimen Including Everolimus and Reduced Dose of Cyclosporine Versus an Immunosuppressive Regimen With Mycophenolic Acid and Standard Dose of Cyclosporine A (EVERCMV), NCT02328963.


Assuntos
Infecções por Citomegalovirus/prevenção & controle , Transplante de Rim/efeitos adversos , Inibidores de MTOR/uso terapêutico , Subpopulações de Linfócitos T/efeitos dos fármacos , Idoso , Antibacterianos/uso terapêutico , Antígenos CD/metabolismo , Técnicas de Cultura de Células , Infecções por Citomegalovirus/epidemiologia , Infecções por Citomegalovirus/patologia , Feminino , Humanos , Receptor B1 de Leucócitos Semelhante a Imunoglobulina/metabolismo , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/uso terapêutico , Receptor de Morte Celular Programada 1/metabolismo , Subpopulações de Linfócitos T/metabolismo
3.
Psychother Psychosom ; 90(5): 341-350, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33873195

RESUMO

INTRODUCTION: Older adults experiencing subjective cognitive decline (SCD) have a heightened risk of developing dementia and frequently experience subclinical anxiety, which is itself associated with dementia risk. OBJECTIVE: To understand whether subclinical anxiety symptoms in SCD can be reduced through behavioral interventions. METHODS: SCD-Well is a randomized controlled trial designed to determine whether an 8-week mindfulness-based intervention (caring mindfulness-based approach for seniors; CMBAS) is superior to a structurally matched health self-management program (HSMP) in reducing subclinical anxiety. Participants were recruited from memory clinics at 4 European sites. The primary outcome was change in anxiety symptoms (trait subscale of the State-Trait Anxiety Inventory; trait-STAI) from pre- to postintervention. Secondary outcomes included a change in state anxiety and depression symptoms postintervention and 6 months postrandomization (follow-up). RESULTS: One hundred forty-seven participants (mean [SD] age: 72.7 [6.9] years; 64.6% women; CMBAS, n = 73; HSMP, n = 74) were included in the intention-to-treat analysis. There was no difference in trait-STAI between groups postintervention (adjusted change difference: -1.25 points; 95% CI -4.76 to 2.25) or at follow-up (adjusted change difference: -0.43 points; 95% CI -2.92 to 2.07). Trait-STAI decreased postintervention in both groups (CMBAS: -3.43 points; 95% CI -5.27 to -1.59; HSMP: -2.29 points; 95% CI -4.14 to -0.44) and reductions were maintained at follow-up. No between-group differences were observed for change in state anxiety or depression symptoms. CONCLUSIONS: A time-limited mindfulness intervention is not superior to health self-management in reducing subclinical anxiety symptoms in SCD. The sustained reduction observed across both groups suggests that subclinical anxiety symptoms in SCD are modifiable. ClinicalTrials.gov identifier: NCT03005652.


Assuntos
Disfunção Cognitiva , Atenção Plena , Autogestão , Idoso , Ansiedade/terapia , Transtornos de Ansiedade , Disfunção Cognitiva/terapia , Feminino , Humanos , Masculino
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