Publications by authors named "A F Costa"

Climate change poses a significant threat to human health. Long-term climate effects on childhood asthma hospitalizations depend on the population's geographic region. These effects in tropical drylands are not well understood.

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The MCM motor of the eukaryotic replicative helicase is loaded as a double hexamer onto DNA by the Origin Recognition Complex (ORC), Cdc6, and Cdt1. ATP binding supports formation of the ORC-Cdc6-Cdt1-MCM (OCCM) helicase-recruitment complex where ORC-Cdc6 and one MCM hexamer form two juxtaposed rings around duplex DNA. ATP hydrolysis by MCM completes MCM loading but the mechanism is unknown.

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Introduction: Segmental anatomical resections have been a subject of debate in recent years. There is increasing evidence that these procedures may offer some advantages in the treatment of early-stage lung cancer, with overall survival (OS) and disease-free survival (DFS) similar to those seen in lobar anatomical resections.

Materials And Methods: We conducted a retrospective analysis of patients who underwent segmentectomy at Santa Marta Hospital (HSM) between January 2018 and September 2022.

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Introduction: Pancoast tumors encompass any tumor located on the lung apex, extending into structures in the thoracic inlet and, often, leading to the characteristic clinical syndrome. The main goal of this study is to analyze the response to multimodal treatment and outcome of patients with Pancoast tumors.

Materials And Methods: We performed a retrospective cohort single center study of patients with superior sulcus nonsmall cell lung carcinomas who underwent surgery between January of 2011 and February of 2022.

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VEXAS syndrome is a complex hemato-inflammatory disorder, driven by somatic mutations in the UBA1 gene within hematopoietic precursor cells. It is characterized by systemic inflammation, rheumatological manifestations, and frequent association with myelodysplastic syndrome (MDS). We present a series of four VEXAS cases, all of which include concomitant MDS, each displaying distinct genetic signatures and clinical features at diagnosis, with a focus on their diagnostic and therapeutic implications.

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