Antimicrobial Peptides (AMPs) Are Not Increased in Asymptomatic Bacteriuria in Healthy Older Adult Patients.

Background/objective: Antimicrobial peptides have demonstrated promise as biomarkers for urinary tract infection (UTI) in older adults (age ≥ 65 years). However, it is unknown if urinary AMP levels also increase in asymptomatic bacteriuria. Our objective was to determine if AMP levels vary between older adult patients with and without asymptomatic bacteriuria.

Teneurin C-Terminal Associated Peptide (TCAP)-1 Attenuates Restraint Stress-Induced Corticosterone Increases in Male Mice and Rats.

Hyperactivation of the hypothalamic-pituitary-adrenal (HPA) axis response can result in anxiety and other neuropsychiatric disorders and effective therapeutics are needed to mitigate this maladaptive response. Here we examined the effects of Teneurin C-terminal Associated Peptide (TCAP)-1, a peptide known to inhibit corticotropin releasing factor (CRF)-mediated stress, on the physiological expression of stress, and whether the effects of TCAP-1 were dependent on the route of administration. We first examined whether subcutaneous administration of TCAP-1 influenced tube restraint stress-induced corticosterone (CORT) increases in both male mice and rats.

Discovery and Optimization of Aryl Piperidinone Ureas as Selective Formyl Peptide Receptor 2 Agonists.

We report the discovery and optimization of aryl piperidinone urea formyl peptide receptor 2 (FPR2) agonists from a weakly active high-throughput screening (HTS) hit to potent and selective agonists with favorable efficacy in acute models. A basis for the selectivity for FPR2 over FPR1 is proposed based on docking molecules into recently reported FPR2 and FPR1 cryoEM structures. Compounds from the new scaffold reported in this study exhibited superior potency and selectivity and favorable ADME profiles.

Self-administered gerocognitive examination (SAGE) aids early detection of cognitive impairment at primary care provider visits.

Introduction: Current estimates indicate that up to 50-75% of dementia cases are undiagnosed at an early stage when treatments are most effective. Conducting robust accurate cognitive assessments can be time-consuming for providers and difficult to incorporate into a time-limited Primary Care Provider (PCP) visit. We wanted to compare PCP visits with and without using the self-administered SAGE to determine differences in identification rates of new cognitive disorders.

What is the association between the microbiome and cognition? An umbrella review protocol.

Introduction: Cognitive impairment is reported in a variety of clinical conditions including Alzheimer's disease, Parkinson's and 'long-COVID'. Interestingly, many of these clinical conditions are also associated with microbial dysbiosis. This comanifestation of cognitive and microbiome findings in seemingly unrelated maladies suggests that they could share a common mechanism and potentially presents a treatment target.