Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 5 de 5
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
J Pers Med ; 13(5)2023 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-37240937

RESUMO

(1) Background: In head and neck squamous cell carcinoma, tumor hypoxia has been associated with radio/chemoresistance and poor prognosis, whereas human papillomavirus (HPV)-positive status has a positive impact on treatment response and survival outcomes. The aim of this study was to evaluate the expression and the potential prognostic value of hypoxia-induced endogenous markers in patients treated for squamous cell carcinoma of the nasal cavity and paranasal sinuses (SNSCC), and their correlation with HPV status. (2) Methods: In this monocentric study, patients treated in a curative intent for a SNSCC were screened retrospectively. Protein expression of CA-IX, GLUT-1, VEGF, VEGF-R1, and HIF-1α was determined by immunohistochemical staining, scored, and then correlated with overall survival (OS) and locoregional recurrence free survival (LRRFS). HPV status was assessed and correlated with hypoxic markers. (3) Results: 40 patients were included. A strong expression of CA-IX, GLUT-1, VEGF, and VEGF-R1 was detected in 30%, 32.5%, 50%, and 37.5% of cases, respectively. HIF-1α was detected in 27.5% of cases. High CA-IX expression was associated in univariate analysis with poor OS (p = 0.035), but there was no significant association between GLUT-1, VEGF, VEGF-R1, and HIF-1α expression, and OS/LRRFS. There was no correlation found between HPV status and hypoxia-induced endogenous markers (all p > 0.05). (4) Conclusions: This study provides data on the expression of hypoxia-induced endogenous markers in patients treated for SNSCC and underlines the potential role of CA-IX as a prognostic biomarker for SNSCC.

2.
J Med Virol ; 93(11): 6398-6403, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34370316

RESUMO

Cytomegalovirus (CMV) is a ubiquitous herpes virus that develops lifelong latency following primary infection and can be reactivated following immune suppression. CMV encephalopathy has been described in few reports after hematopoietic stem cell transplantation and in patients with acquired immunodeficiency syndrome. To the best of our knowledge, CMV encephalopathy following CAR-T cells infusion had not been previously reported. Initial CMV viral load and monitoring are crucial in patients with CAR-T cells to allow early intervention with aggressive antiviral treatment without delay if needed.


Assuntos
Infecções por Citomegalovirus/diagnóstico por imagem , Infecções por Citomegalovirus/etiologia , Citomegalovirus/patogenicidade , Encefalite Viral/etiologia , Imunoterapia Adotiva/efeitos adversos , Idoso , Encéfalo/diagnóstico por imagem , Encéfalo/virologia , Citomegalovirus/genética , Infecções por Citomegalovirus/complicações , Infecções por Citomegalovirus/terapia , Encefalite Viral/diagnóstico , Evolução Fatal , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Imageamento por Ressonância Magnética , Masculino , Gravidade do Paciente , Transplante Homólogo/efeitos adversos , Carga Viral
3.
Crit Care Med ; 49(6): 934-942, 2021 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-33591000

RESUMO

OBJECTIVES: To determine the frequency and prognosis of invasive pulmonary aspergillosis in critically ill patients with severe influenza pneumonia. DESIGN: Retrospective multicenter cohort study. SETTING: Five French ICUs. PATIENTS: Patients with influenza admitted to ICU between 2009 and 2018. MEASUREMENTS AND MAIN RESULTS: Of the 524 patients admitted for severe influenza diagnosed with a positive airway reverse-transcriptase polymerase chain reaction test, 450 (86%) required mechanical ventilation. A lower respiratory tract sample yielded with Aspergillus (Asp+) in 28 patients (5.3%). Ten patients (1.9%) were diagnosed with putative or proven invasive pulmonary aspergillosis, based on the validated AspICU algorithm. A multivariate model was built to identify independent risk factors for Aspergillus-positive pulmonary culture. Factors independently associated with Aspergillus-positive culture were liver cirrhosis (odds ratio = 6.7 [2.1-19.4]; p < 0.01), hematologic malignancy (odds ratio = 3.3 [1.2-8.5]; p = 0.02), Influenza A(H1N1)pdm09 subtype (odds ratio = 3.9 [1.6-9.1]; p < 0.01), and vasopressor requirement (odds ratio = 4.1 [1.6-12.7]; p < 0.01). In-hospital mortality of Asp+ patients was 36% versus 21% in patients without Aspergillus-positive pulmonary culture (p = 0.09). CONCLUSIONS: In this large retrospective multicenter cohort of critically ill patients, putative invasive pulmonary aspergillosis according to AspICU algorithm was a relatively rare complication of influenza. Patients at higher risk of Aspergillus pulmonary colonization included those with liver cirrhosis, hematologic malignancy, H1N1pdm09 influenza A virus, and requiring vasopressors. Our results provide additional data on the controversial association between severe influenza and invasive pulmonary aspergillosis. Reaching a consensual definition of invasive pulmonary aspergillosis becomes mandatory and confers further prospective research.


Assuntos
Estado Terminal , Influenza Humana/epidemiologia , Aspergilose Pulmonar Invasiva/epidemiologia , Idoso , Comorbidade , Feminino , Humanos , Influenza Humana/mortalidade , Aspergilose Pulmonar Invasiva/complicações , Aspergilose Pulmonar Invasiva/mortalidade , Masculino , Pessoa de Meia-Idade , Necrotério , Estudos Retrospectivos , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Índice de Gravidade de Doença
4.
Ther Drug Monit ; 42(2): 163-164, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32195986
5.
Infection ; 48(4): 489-495, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32056143

RESUMO

PURPOSE: To describe the burden, and characteristics, of influenza-like illness (ILI) associated with non-influenza respiratory viruses (NIRV). METHODS: We performed a prospective, multicenter, observational study of adults admitted with ILI during three influenza seasons (2012-2015). Patients were screened for picornavirus, respiratory syncytial virus (RSV), coronavirus, human metapneumovirus, adenovirus, bocavirus, parainfluenza virus, and influenza, by PCR on nasopharyngeal samples. We excluded patients coinfected with NIRV and influenza. RESULTS: Among 1421 patients enrolled, influenza virus was detected in 535 (38%), and NIRV in 215 (15%), mostly picornavirus (n = 61), RSV (n = 53), coronavirus 229E (n = 48), and human metapneumovirus (n = 40). In-hospital mortality was 5% (NIRV), 4% (influenza), and 5% (no respiratory virus). As compared to influenza, NIRV were associated with age (median, 73 years vs. 68, P = 0.026), chronic respiratory diseases (53% vs. 45%, P = 0.034), cancer (14% vs. 9%, P = 0.029), and immunosuppressive drugs (21% vs. 14%, P = 0.028), and inversely associated with diabetes (18% vs. 25%, P = 0.038). On multivariable analysis, only chronic respiratory diseases (OR 1.5 [1.1-2.0], P = 0.008), and diabetes (OR 0.5 [0.4-0.8], P = 0.01) were associated with NIRV detection. CONCLUSIONS: NIRV are common in adults admitted with ILI during influenza seasons. Outcomes are similar in patients with NIRV, influenza, or no respiratory virus.


Assuntos
Infecções Respiratórias/diagnóstico , Infecções Respiratórias/virologia , Vírus/isolamento & purificação , Idoso , Idoso de 80 Anos ou mais , Coinfecção/virologia , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Vírus/classificação
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA