Discovery of Ligands for TRIM58, a Novel Tissue-Selective E3 Ligase.

Redirecting E3 ligases to neo-substrates, leading to their proteasomal disassembly, known as targeted protein degradation (TPD), has emerged as a promising alternative to traditional, occupancy-driven pharmacology. Although the field has expanded tremendously over the past years, the choice of E3 ligases remains limited, with an almost exclusive focus on CRBN and VHL. Here, we report the discovery of novel ligands to the PRY-SPRY domain of TRIM58, a RING ligase that is specifically expressed in erythroid precursor cells.

RNA molecular recording with an engineered RNA deaminase.

RNA deaminases are powerful tools for base editing and RNA molecular recording. However, the enzymes used in currently available RNA molecular recorders such as TRIBE, DART or STAMP have limitations due to RNA structure and sequence dependence. We designed a platform for directed evolution of RNA molecular recorders.

When and where to exercise: An assessment of personal exposure to urban tropical ambient airborne pollutants in Singapore.

Background: Physical activity is associated with health benefits and has been shown to reduce mortality risk. However, exposure to high levels of ambient fine particulate matter (PM) during exercise can potentially reduce the health benefits of physical activity. This study aims to assess and compare the PM concentrations of different exercise venues in Singapore by their location attributes and time of day.

Magnetic Resonance Imaging (MRI) Analysis of Tissue Sodium Concentration in Chronic Kidney Disease.

Human body sodium is regulated by the kidneys and extrarenal mechanisms. Stored skin and muscle tissue sodium accumulation is associated with kidney function decline, hypertension, and a pro-inflammatory and cardiovascular disease profile. In this chapter, we describe the use of sodium-hydrogen magnetic resonance imaging (Na/H MRI) to dynamically quantify tissue sodium concentration in the lower limb of humans.

Validation of a telephone-based administration of the simplified nutritional appetite questionnaire.

Background: Anorexia of aging is characterized by an age-associated reduction of appetite, whose aetiology in most cases is multifactorial and which often triggers malnutrition. The Simplified Nutritional Appetite Questionnaire (SNAQ) is an established screening tool. This study aimed to investigate reliability, validity, and feasibility of its telephone administration (T-SNAQ) in German community-dwelling older adults.