Publications by authors named "C M Williamson"

Background: Family caregivers of patients with severe acute brain injury (SABI) are at risk for clinically significant chronic emotional distress, including depression, anxiety, and posttraumatic stress. Existing psychosocial interventions for caregivers of intensive care unit (ICU) patients are not tailored to the unique needs of caregivers of patients with SABI, do not demonstrate long-term efficacy, and may increase caregiver burden. In this study, we explored the needs and preferences for psychosocial services among SABI caregivers to inform the development and adaptation of interventions to reduce their emotional distress during and after their relative's ICU admission.

View Article and Find Full Text PDF

The Antibody Mediated Prevention (AMP) trials showed that passively infused VRC01, a broadly neutralizing antibody (bNAb) targeting the CD4 binding site (CD4bs) on the HIV-1 envelope protein (Env), protected against neutralization-sensitive viruses. We identified six individuals from the VRC01 treatment arm with multi-lineage breakthrough HIV-1 infections from HVTN703, where one variant was sensitive to VRC01 (IC < 25 ug/mL) but another was resistant. By comparing Env sequences of resistant and sensitive clones from each participant, we identified sites predicted to affect VRC01 neutralization and assessed the effect of their reversion in the VRC01-resistant clone on neutralization sensitivity.

View Article and Find Full Text PDF

This primigravid pregnant woman had a new diagnosis of primary biliary cholangitis (PBC) that was treated with a combination of ursodeoxycholic acid (UDCA) and bezafibrate. Pregnancy may unmask underlying chronic hepatic disorders in susceptible women and, in some cases, the associated abnormalities of liver function or increased serum bile acids (hypercholanaemia) can result in significant fetal and maternal risk. Maternal pruritus, with associated sleep deprivation, may cause considerable distress.

View Article and Find Full Text PDF

Previous studies have shown that the majority of long-lived cells harboring persistent HIV-1 proviral genomes originates from viruses circulating in the year prior to antiretroviral therapy (ART) initiation, but a smaller proportion originates from viruses circulating much earlier in untreated infection. These observations suggest that discrete biological factors influence the entry and persistence of viruses into the persistent proviral pool, and there may be periods earlier in untreated infection with increased seeding. Therefore, we examined the timing of formation of the long-lived pool of infected cells that persists during ART in seven women (after a median of 5.

View Article and Find Full Text PDF

Introduction: Cardiac fibrosis occurs in a wide range of cardiac diseases and is characterised by the transdifferentiation of cardiac fibroblasts into myofibroblasts these cells produce large quantities of extracellular matrix, resulting in myocardial scar. The profibrotic process is multi-factorial, meaning identification of effective treatments has been limited. The antifibrotic effect of the bile acid ursodeoxycholic acid (UDCA) is established in cases of liver fibrosis however its mechanism and role in cardiac fibrosis is less well understood.

View Article and Find Full Text PDF