Dynamics and Half-Life of Cell-Free DNA After Exercise: Insights from a Fragment Size-Specific Measurement Approach.

Cell-free DNA (cfDNA) is present in healthy individuals but is elevated in those undergoing physical exertion, trauma, sepsis, and certain cancers. Maintaining cfDNA concentrations is vital for immune homeostasis and preventing inflammatory responses. Understanding cfDNA release and clearance is essential for using cfDNA as a biomarker in clinical diagnostics.

Significance of Pulmonary Artery Dilatation in Lung Cancer Patients With Chronic Obstructive Pulmonary Disease Who Underwent Pulmonary Resection.

Background: The significance of pulmonary artery (PA) diameter in patients with non-small cell lung cancer (NSCLC) and chronic obstructive pulmonary disease (COPD) who undergo pulmonary resection has not been elucidated.

Methods: Data of 357 patients with NSCLC and COPD who underwent pulmonary resection were retrospectively reviewed. The main PA diameter, determined by preoperative computed tomography, relative to the body surface area (PBR), was used as an index of PA dilatation, and patients were divided into 2 groups using median values.

Knockout or inhibition of DHPS suppresses ovarian tumor growth and metastasis by attenuating the TGFβ pathway.

Deoxyhypusine synthase (DHPS) is an enzyme encoded by the DHPS gene, with high expression in various cancers, including ovarian cancer (OC). DHPS regulates the translation initiation factor EIF5A, and EIF5A2 knockout inhibits OC tumor growth and metastasis by blocking the epithelial-to-mesenchymal transition (EMT) and the TGFβ pathway. In this study, we show that DHPS is amplified in OC patients, and its elevated expression correlates with poor survival.

Long-term outcomes of surgical treatment of non-small cell lung cancer with oligometastatic disease involving only the brain in the era of PET/CT.

Background: The prognosis of patients with synchronous oligometastatic non-small cell lung cancer (NSCLC) has been improving owing to advancements in imaging techniques and new treatment approaches such as tyrosine kinase inhibitors. This study aimed to investigate the long-term outcomes, including the clinical course after recurrence, of patients with synchronous oligometastatic NSCLC with only brain metastases, treated with bifocal treatment.

Methods: We retrospectively analyzed 22 patients with clinical T1-4 and N0-1 NSCLC with synchronous brain metastases who were diagnosed by preoperative PET/CT and brain CT or MRI and underwent pulmonary resection for the primary site and surgery or radiation therapy for brain metastases at our institution from 2005 to 2019.