Clinical evaluation of patterned dried plasma spot cards to support quantification of HIV viral load and reflexive genotyping.

Quantifying viral load, a key indicator required to achieve control and elimination of the HIV epidemic, requires cell-free plasma or serum to ensure measurements are not biased by proviral DNA contained in infected CD4 T lymphocytes. Plasma separation cards (PSC) collect and preserve a dried specimen, which makes them practical solutions for decentralized sample collection and transport in limited-resource settings. However, physiological variations in hematocrit levels can introduce significant variability in the quality of plasma generated by commercial PSCs and can lead to inaccurate test results and clinical decisions.

Development and evaluation of a high-fidelity, multi-disciplinary simulation training course for high-consequence infectious diseases using fluorescence visualization.

Background: High-consequence infectious diseases (HCIDs) include contact-transmissible viral haemorrhagic fevers and airborne-transmissible infections such as Middle Eastern Respiratory Syndrome. Assessing suspected HCID cases requires specialized infection control measures including patient isolation, personal protective equipment (PPE), and decontamination. There is need for an accessible course for NHS staff to improve confidence and competence in using HCID PPE outside specialist HCID centres.

Ligand Shell Thickness of PEGylated Gold Nanoparticles Controls Cellular Uptake and Radiation Enhancement.

The drive to improve the safety and efficacy of radiotherapies for cancers has prompted the development of nanomaterials that can locally amplify the radiation dose at a tumor without damaging the surrounding healthy tissue. Gold nanoparticles (Au NPs), in particular, exhibit promising radiosensitizing properties under kilovolt X-ray exposure, although the precise mechanism behind this enhancement is not fully understood. While most studies recognize the involvement of factors such as core composition, size, shape, and ligand chemistry in the effectiveness of Au NPs for radiation-induced cancer treatment, there is a scarcity of direct assessments that connect the photophysical properties of the nanomaterial with the observed cellular or biological outcomes.

Analysis of the Skin and Brain Transcriptome of Normally Pigmented and Pseudo-Albino Southern Flounder () Juveniles to Study the Molecular Mechanisms of Hypopigmentation and Its Implications for Species Survival in the Natural Environment.

Southern flounder skin pigmentation is a critical phenotypic characteristic for this species' survival in the natural environment. Normal pigmentation allows rapid changes of color for concealment to capture prey and UV light protection. In contrast, highly visible hypopigmented pseudo-albinos exhibit a compromised immune system and are vulnerable to predation, sensitive to UV exposure, and likely have poor survival in the wild.