Modulation of Filopodial Myosin Function.

MyTH-FERM (MF) myosins are essential for filopodia formation in both Metazoa and Amoebozoa ( DdMyo7; mammalian Myo10) but their roles in filopodia formation are not fully understood. Taking advantage of a mutation in the highly conserved actin binding interface of another MF myosin, the () mutation of Myo15A that reduces its function, the impact of altering the myosin-F-actin interaction on filopodia formation was investigated. The mutation, a D to G substitution (Gong et al, 2022, Sci Adv), was introduced into DdMyo7 or Myo10 and filopodia formation assessed by quantitative analysis of number, length and myosin tip enrichment.

Changes in Youth Cholesterol Screening Rates in an Academic Center During the COVID-19 Pandemic.

Screening youth for hypercholesterolemia allows for detection of familial hypercholesterolemia that can predispose to premature heart disease, however guidelines provide conflicting recommendations regarding universal cholesterol screening. The COVID-19 pandemic and the perception of conflicting guideline recommendations (2011 National Heart, Lung, and Blood Institute guidelines and United States Preventive Services Task Force recommendations in 2016 and 2023) may have adversely affected youth cholesterol screening rates. This study examines screening rates during and after the COVID-19 pandemic and the most recent guideline update.

filoVision - using deep learning and tip markers to automate filopodia analysis.

Filopodia are slender, actin-filled membrane projections used by various cell types for environment exploration. Analyzing filopodia often involves visualizing them using actin, filopodia tip or membrane markers. Due to the diversity of cell types that extend filopodia, from amoeboid to mammalian, it can be challenging for some to find a reliable filopodia analysis workflow suited for their cell type and preferred visualization method.