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1.
Indian Pediatr ; 61(5): 456-459, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38517007

RESUMO

We estimated the incidence of intraventricular hemorrhage (IVH) and/or periventricular leukomalacia/echogenicity (PVL/E) in Rhesus isoimmunized infants. Seventy-one infants underwent cranial ultrasound within the first 3 days of life or discharge, whichever was earlier. Of these, 27 (38%) infants had IVH/ PVL/E. On multivariate analysis, lower gestational age (P = 0.035), small for gestational age [aOR (95% CI) 10.6 (1.9, 58.9)], and sepsis [aOR (95% CI) 4.5 (1.1, 18.4)] were independently associated with IVH/PVL.


Assuntos
Leucomalácia Periventricular , Humanos , Recém-Nascido , Estudos Prospectivos , Masculino , Feminino , Leucomalácia Periventricular/diagnóstico por imagem , Leucomalácia Periventricular/epidemiologia , Eritroblastose Fetal/epidemiologia , Isoimunização Rh , Ultrassonografia/métodos
2.
APMIS ; 129(5): 254-264, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33455015

RESUMO

PD-L1 immune checkpoint inhibitor expression was evaluated in high-grade serous carcinoma (HGSC) ovary in the context of the overall immune landscape to determine its prognostic value. Consecutive cases of HGSC, 50 who underwent upfront surgery followed by adjuvant chemotherapy (HGSC-U) and 50 who underwent neoadjuvant chemotherapy (NACT) followed by interval debulking surgery (HGSC-PC) were selected. In HGSC-PC cases, the pre-NACT ascitic fluid cell blocks were included. Tumor-infiltrating lymphocytes (TILs) were scored, hotspots chosen for tissue microarray construction and immunohistochemistry performed and scored for CD4 and CD8 lymphocyte subsets, CD68+ tumor-associated macrophages (TAMs), PD-1 and PD-L1 expression. HGSC-post-chemotherapy showed increased TILs, predominantly CD8+T-lymphocytes, compared to HGSC-U. HGSC showed PD-L1 expression on tumor cells and/or TAMs in 60% cases with a linear correlation to CD4+, CD8+ TIL levels. Concordant PD-L1 expression was seen in matched pre- and post-NACT tumor cells. HGSC-PC showed higher expression of PD-L1. There was no association of PD-L1 cumulative proportion score or tumor cell score with outcome. Taking a cutoff for PD-L1 CPS at 10%, immunotype I (PD-L1+/CD-8+), corresponding to tumors with adaptive immune evasion, showed worst disease-free survival compared to all other immunotypes (p = 0.03) and was more significant (p = 0.01) when compared to immunotype III (PD-L1+/CD8-). Immunotyping based on PD-L1/CD8+ expression correlates to prognosis and outcome.


Assuntos
Antígeno B7-H1/metabolismo , Linfócitos T CD8-Positivos/metabolismo , Cistadenocarcinoma Seroso/imunologia , Neoplasias Ovarianas/imunologia , Subpopulações de Linfócitos T/metabolismo , Adulto , Idoso , Biomarcadores Tumorais/metabolismo , Linfócitos T CD8-Positivos/patologia , Quimioterapia Adjuvante , Cistadenocarcinoma Seroso/tratamento farmacológico , Cistadenocarcinoma Seroso/patologia , Cistadenocarcinoma Seroso/cirurgia , Procedimentos Cirúrgicos de Citorredução , Intervalo Livre de Doença , Feminino , Humanos , Imunofenotipagem , Linfócitos do Interstício Tumoral/metabolismo , Linfócitos do Interstício Tumoral/patologia , Pessoa de Meia-Idade , Terapia Neoadjuvante , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/patologia , Neoplasias Ovarianas/cirurgia , Prognóstico , Subpopulações de Linfócitos T/patologia , Microambiente Tumoral/imunologia , Macrófagos Associados a Tumor/metabolismo , Macrófagos Associados a Tumor/patologia
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