To determine the feasibility of HIV genotyping at low-level viraemia (LLV) using an in-house assay in a South African population and the prevalence, as well as the clinical relevance, of drug resistance (HIVDR) in this population. We conducted an observational, retrospective, cohort study on patient samples with LLV referred for routine HIVDR testing at a public sector Johannesburg laboratory from August 2017 to October 2018. Genotyping was performed using a nested RT-PCR assay and Sanger sequencing. The genotyping success rate was evaluated for different viraemia categories. Sequences were loaded onto the Stanford HIVdb genotypic resistance tool (version 8.7) for drug resistance interpretation. Plasma samples from 159 HIV-1-infected, treatment-experienced adults with LLV (5-999 copies/mL) were analysed. The in-house assay performed well with an overall success rate of 78.6% (125/159, 95% CI 71.6-84.3). The prevalence of drug resistance mutations in the LLV cohort was 79.2% (99/125, 95% CI 71.2-85.4) with most patients (n = 109, 68.6%) on a PI-based regimen at the time of genotyping. Of 125 sequences obtained, 73.6% (92/125) had ≥1 NRTI mutation while 70.4% (88/125) had ≥1 NNRTI mutation. Major PI mutations, including M46I and V82A, were detected in 7.2% (9/125) of patients. Current South African virological failure guidelines may keep patients on failing regimens for longer than necessary. Our data suggest that genotyping at LLV is feasible and implementation could result in earlier identification and referral of patients requiring third-line regimens.Current South African virological failure guidelines may keep patients on failing regimens for longer than necessary. Our data suggest that genotyping at LLV is feasible and implementation could result in earlier identification and referral of patients requiring third-line regimens. The COVID-19 pandemic has focussed attention on models of healthcare that avoid face-to-face contacts between clinicians and patients, and teleconsultations have become the preferred mode of primary care delivery. However, the effectiveness of remote consultations in this setting remains unclear. To evaluate the impact of telephone or video consultations compared to those conducted face-to-face on key patient-relevant outcomes and healthcare utilisation in primary care, mental health and allied health services, which have had a critical role in the management of the wider and longer-term consequences of COVID-19. A systematic review of primary studies comparing telephone or video consultations versus face-to-face visits, following the PRISMA guidelines. Overall, consultations delivered by telephone and videoconference were as effective as face-to-face in-person visits to improve clinical outcomes in adults with mental health conditions and those attending primary care services. Patient satisfaction wiconsultations have the potential to deliver time-efficient and lower-cost interventions at a distance while improving access to healthcare. Women with a history of preeclampsia (hxPE) exhibit sustained arterial stiffness and elevated blood pressure (BP) postpartum. Aortic stiffness and 24-hour BP variability (BPV) are associated with age-related cognitive decline. Although hxPE is related to altered cognitive function, the association between aortic stiffness and BPV with cognitive performance in young women with hxPE has not been investigated. The objectives of this study were to 1) test whether cognitive performance is lower in young women with hxPE and 2) determine whether aortic stiffness and BPV are associated with cognitive performance independent of 24-hour average BP. Women with hxPE (N=23) and healthy pregnancy controls (N=38) were enrolled 1-3 years postpartum. Cognitive performance was assessed in domains of memory, processing speed and executive function. 24-hour ambulatory BP monitoring and carotid-femoral pulse wave velocity (cfPWV) were used to measure BPV and aortic stiffness, respectively. Women with hxPE had slower processing speed (-0.56±0.17 versus 0.34±0.11 Z-score, P<0.001) and lower executive function (-0.43±0.14 versus 0.31±0.10 Z-score, P=0.004) compared with controls independent of education, whereas memory did not differ. BPV and cfPWV (adjusted for BP) did not differ between women with hxPE and controls. Greater diastolic BPV was associated with lower executive function independent of 24-hour average BP and education in women with hxPE (r = -0.48, P=0.03) but not controls (r = 0.15, P=0.38). Select cognitive functions are reduced postpartum in young women with a recent hxPE and linked with elevated 24-hour diastolic BPV.Select cognitive functions are reduced postpartum in young women with a recent hxPE and linked with elevated 24-hour diastolic BPV. Occupational exposure to molybdenum has been poorly documented to date. Here, we present a retrospective study evaluating urinary molybdenum concentration before and after shift over a period of 2 years in exposed workers. This retrospective study was conducted across eight industrial sites in France and included all workers undergoing medical follow-up for occupational molybdenum exposure. A mean of six sequential samples (before and after shift) was performed for each worker. The urinary molybdenum concentration was determined using a validated method of inductively coupled plasma-mass spectrometry. A mixed linear model was built and linear regression was used to verify the extent to which the urinary molybdenum concentration depends on the age of the workers and the sampling period. Additionally, an analysis based on individual trajectory was also performed. Seventy-seven workers were included in the present study. Post-shift urinary molybdenum concentrations were significantly higher than pre-shift sizes the importance of molybdenum monitoring in exposed workers.There is an urgent need for accurate, scalable, and cost-efficient experimental systems to model the complexity of the tumor microenvironment. Here, we detail how to fabricate and use the Metabolic Microenvironment Chamber (MEMIC) - a 3D-printed ex vivo model of intratumoral heterogeneity. A major driver of the cellular and molecular diversity in tumors is the accessibility to the blood stream that provides key resources such as oxygen and nutrients. While some tumor cells have direct access to these resources, many others must survive under progressively more ischemic environments as they reside further from the vasculature. selleck compound The MEMIC is designed to simulate the differential access to nutrients and allows co-culturing different cell types, such as tumor and immune cells. This system is optimized for live imaging and other microscopy-based approaches, and it is a powerful tool to study tumor features such as the effect of nutrient scarcity on tumor-stroma interactions. Due to its adaptable design and full experimental control, the MEMIC provide insights into the tumor microenvironment that would be difficult to obtain via other methods.