Circulating tumor DNA in head and neck squamous cell carcinoma-current status and future prospects.

Squamous cell carcinoma (SCC) is the most common malignancy of the head and neck. Stagnating survival rates in recent decades, despite advances in the treatment paradigms, surveillance technologies, and multidisciplinary care, leave clinicians with a need for better options for screening, risk-stratifying, and monitoring patients. A growing proportion of patients with HPV-associated SCC have improved outcomes but continue to have a heterogenous response to treatment.

An Alkyne-Containing Isoprenoid Analogue Based on a Farnesyl Diphosphate Scaffold Is a Biologically Functional Universal Probe for Proteomic Analysis.

Prenylation consists of the modification of proteins with either farnesyl diphosphate (FPP) or geranylgeranyl diphosphate (GGPP) at a cysteine near the C-terminus of target proteins to generate thioether-linked lipidated proteins. In recent work, metabolic labeling with alkyne-containing isoprenoid analogues including C15AlkOPP has been used to identify prenylated proteins and track their levels in different diseases. Here, a systematic study of the impact of isoprenoid length on proteins labeled with these probes was performed.

Including Families in a Response to the Unregulated Toxic Drug Crisis: A Call to Action.

The unregulated toxic drug crisis continues to be an urgent health issue in North America. Many families of people who use drugs have been significantly impacted by this issue. In addition to the thousands of North Americans who have been bereaved by drug mortality, many families are providing unpaid care to bridge gaps in services while navigating the grief and stress associated with caring for a loved one amidst a heavily politicized and rapidly changing context.

C-section and systemic inflammation synergize to disrupt the neonatal gut microbiota and brain development in a model of prematurity.

Infants born very preterm (below 28 weeks of gestation) are at high risk of developing neurodevelopmental disorders, such as intellectual deficiency, autism spectrum disorders, and attention deficit. Preterm birth often occurs in the context of perinatal systemic inflammation due to chorioamnionitis and postnatal sepsis. In addition, C-section is often performed for very preterm neonates to avoid hypoxia during a vaginal delivery.

Development and validation of an ultrafast method of quantification of rivaroxaban in human serum using laser diode thermal desorption coupled to triple quadrupole mass spectrometry.

Rationale: Rivaroxaban is an anticoagulant prescribed to patients who are at risk of medical conditions such as deep-vein thrombosis, pulmonary embolisms, and strokes caused by blood clots. The administration of this drug is monitored to adjust the dosage and evaluate patients' blood concentration. Rapid quantification of this drug in plasma could make it possible to ensure that the dose present in the blood of patients does not represent a danger for the medical intervention to be carried out.