GRK5 is required for adipocyte differentiation through ERK activation.

Previous studies have identified G protein-coupled receptor (GPCR) kinase 5 (GRK5) as a genetic factor contributing to obesity pathogenesis, but the underlying mechanism remains unclear. We demonstrate here that Grk5 mRNA is more abundant in stromal vascular fractions of mouse white adipose tissue, the fraction that contains adipose progenitor cells, or committed preadipocytes, than in adipocyte fractions. Thus, we generated a GRK5 knockout (KO) 3T3-L1 preadipocyte to further investigate the mechanistic role of GRK5 in regulating adipocyte differentiation.

Association of Alzheimer's Disease Polygenic Risk Score with Concussion Severity and Recovery Metrics.

Background: Identification of genetic alleles associated with both Alzheimer's disease (AD) and concussion severity/recovery could help explain the association between concussion and elevated dementia risk. However, there has been little investigation into whether AD risk genes associate with concussion severity/recovery, and the limited findings are mixed.

Objective: We used AD polygenic risk scores (PRS) and APOE genotypes to investigate any such associations in the NCAA-DoD Grand Alliance CARE Consortium (CARE) dataset.

Pan-European atmospheric lead pollution, enhanced blood lead levels, and cognitive decline from Roman-era mining and smelting.

Ancient texts and archaeological evidence indicate substantial lead exposure during antiquity that potentially impacted human health. Although lead exposure routes were many and included the use of glazed tablewares, paints, cosmetics, and even intentional ingestion, the most significant for the nonelite, rural majority of the population may have been through background air pollution from mining and smelting of silver and lead ores that underpinned the Roman economy. Here, we determined potential health effects of this air pollution using Arctic ice core measurements of Roman-era lead pollution, atmospheric modeling, and modern epidemiology-based relationships between air concentrations, blood lead levels (BLLs), and cognitive decline.

Thermal Adaptation in Worldwide Collections of a Major Fungal Pathogen.

Adaptation to new climates poses a significant challenge for plant pathogens during range expansion, highlighting the importance of understanding their response to climate to accurately forecast future disease outbreaks. The wheat pathogen is ubiquitous across most wheat production regions distributed across diverse climate zones. We explored the genetic architecture of thermal adaptation using a global collection of 411 strains that were phenotyped across a wide range of temperatures and then included in a genome-wide association study.

Anaesthetic and corticosteroid response immediately following epidural injection in patients with MRI confirmed lumbar disc herniation.

Objectives: To describe a rapid, community-based assessment, referral and management system for acute symptomatic LDH. To identify and describe specific local anaesthetic and corticosteroid patterns of pain intensity change during the first week post-epidural injection.

Setting: Private practice, specialist physiotherapy clinic, community-based radiology facility.