Correlation on metabolic complete response on positron emission tomography and pathological complete response in patients with breast cancer after neoadjuvant chemotherapy.

Purpose: The use of neoadjuvant chemotherapy in treating breast cancer has expanded in recent years. There was increased interest in using positron emission tomography (PET) for the evaluation of treatment response. We aimed to study the accuracy of metabolic complete response (mCR) on PET scan in predicting pathological complete response (pCR) after neoadjuvant treatment.

Outcomes of extremely preterm infants who participated in a randomised trial of dopamine for treatment of hypotension (the HIP trial) at 2 years corrected age.

Objective: To determine survival and neurodevelopmental outcomes in the Hypotension in Preterm (HIP) trial.

Design: Prospective follow-up of infants enrolled in randomised controlled trial.

Participants: 58 infants born before 28 weeks of gestation with low mean arterial blood pressure.

SAMHD1 enhances HIV-1-induced apoptosis in monocytic cells via the mitochondrial pathway.

Sterile alpha motif (SAM) and histidine-aspartate (HD) domain-containing protein 1 (SAMHD1) inhibits HIV-1 replication in non-dividing cells by reducing the intracellular dNTP pool. SAMHD1 enhances spontaneous apoptosis in cells, but its effects on HIV-1-induced apoptosis and the underlying mechanisms remain unknown. Here we uncover a new mechanism by which SAMHD1 enhances HIV-1-induced apoptosis in monocytic cells through the mitochondrial pathway.

Monitoring of cancer ferroptosis with [F]hGTS13, a system xc- specific radiotracer.

Glioblastoma multiforme (GBM) is the most common and aggressive primary brain tumor in adults, characterized by resistance to conventional therapies and poor survival. Ferroptosis, a form of regulated cell death driven by lipid peroxidation, has recently emerged as a promising therapeutic target for GBM treatment. However, there are currently no non-invasive imaging techniques to monitor the engagement of pro-ferroptotic compounds with their respective targets, or to monitor the efficacy of ferroptosis-based therapies.

Effect of vasopressin on brain and cardiac tissue during neonatal cardiopulmonary resuscitation of asphyxiated post-transitional piglets.

Background: Epinephrine is currently the only recommended cardio-resuscitative medication for use in neonatal cardiopulmonary resuscitation (CPR), as per consensus of science and treatment recommendations. An alternative medication, vasopressin, may be beneficial, however there is limited data regarding its effect on cardiac and brain tissue following recovery from neonatal CPR.

Aim: To compare the effects of vasopressin and epinephrine during resuscitation of asphyxiated post-transitional piglets on cardiac and brain tissue injury.