Burn injuries can be devastating, with life-long impacts including an increased risk of hospitalization for a wide range of secondary morbidities. One area that remains not fully understood is the impact of burn trauma on the central nervous system (CNS). This review will outline the current findings on the physiological impact that burns have on the CNS and how this may contribute to the development of neural comorbidities including mental health conditions. This review highlights the damaging effects caused by burn injuries on the CNS, characterized by changes to metabolism, molecular damage to cells and their organelles, and disturbance to sensory, motor and cognitive functions in the CNS. This damage is likely initiated by the inflammatory response that accompanies burn injury, and it is often long-lasting. Treatments used to relieve the symptoms of damage to the CNS due to burn injury often target inflammatory pathways. However, there are non-invasive treatments for burn patients that target the functional and cognitive damage caused by the burn, including transcranial magnetic stimulation and virtual reality. Future research should focus on understanding the mechanisms that underpin the impact of a burn injury on the CNS, burn severity thresholds required to inflict damage to the CNS, and acute and long-term therapies to ameliorate deleterious CNS changes after a burn.

Robust tissue pre-treatment and lipid extraction workflows are crucial to metabolic phenotyping studies and accurate interpretation of lipid profiles. Numerous methods for lipid extraction from tissues have been developed, and the choice of technique influences analysis. This study provides a comprehensive evaluation of six liquid-liquid extraction methods (three biphasic and three monophasic) used for lipidomic tissue analysis by liquid chromatography-mass spectrometry. Extraction methods were assessed for their suitability for comprehensive lipid profiling across diverse tissue types: adipose, liver, and heart. These techniques were compared using lyophilised and fresh frozen samples. The study revealed significant differences in the coverage and reliability of lipid species extracted using each technique, dependent on the tissue type. The optimal extraction method for adipose tissue was butanol:methanol (BUME) (3:1) which achieved the highest lipid coverage, yield and reproducibility (886 lipids with a coefficient of variation (CV) < 30 %); methyl tert-butyl ether (MTBE) with ammonium acetate was most effective for liver tissue (707 lipids CV < 30 %) and BUME (1:1) for heart tissue (311 lipids CV < 30 %). These findings showed that the most effective lipid extraction methods are highly tissue-specific, underscoring the critical need for bespoke protocols tailored to each tissue type. The optimised tissue-specific methods were validated using an intervention study in C57BL/6 mice to investigate diet-induced metabolic changes. The results demonstrated distinct discriminating lipid profiles unique to each tissue type, with 374 lipid species from 13 subclasses significantly different between high-fat diet (HFD) and normal diet (ND) in adipose tissue, while 485 lipid species from 17 subclasses were significantly different between HFD and ND in liver tissue. This study presents a new approach to studying lipid profiles derived from diverse tissues that substantially improve comprehensive lipid species' detection sensitivity and reliability. Our systematic evaluation provides evidence that tailored tissue-specific extraction protocols are highly valuable in comprehensive lipidomics studies, offering robust tools for reliably identifying lipid changes and facilitates a deeper understanding of tissue-specific metabolic processes in diverse research and clinical applications.

Background: A childhood burn presents new and unfamiliar challenges to patients and their parents during recovery. These injuries can negatively impact activities such as independence in self-care, participation in physical activity, and social interaction. As such, pediatric burn patients are at risk of poorer quality of life (QoL) outcomes after their burn. In this longitudinal, observational cohort study, we examined the social, demographic, and clinical factors that were associated with a poor QoL at 12 months postburn for pediatric patients aged > 2 years with non-severe burns in Western Australia. Methods: Inpatients were recruited from the pediatric burn unit at Perth Children’s Hospital in Western Australia between February 2021 and September 2022. Demographic and family information (age, sex, postcode, parental education, languages spoken at home) and clinical data (burn cause, TBSA%, location, surgical interventions, length of stay) were collected at baseline. At 6 and 12 months, caregivers completed the Brisbane Burn Scar Impact Profile (BBSIP). Results: A total of 37 caregivers completed the Brisbane Burn Scar Impact Profile (BBSIP). For the child’s QoL, 57% of caregivers reported that some impact remained for overall QoL, 32% for sensory intensity, 46% for sensitivity, 22% for daily living (22%), and 19% for emotional reactions. Parent worry was impacted in 46% of caregivers. Being female was associated with greater long-term impacts, particularly in overall functioning and parental worry. The burn location also influenced outcomes, with injuries to the upper limbs linked to higher sensory intensity and emotional impact. Children from culturally and linguistically diverse (CaLD) backgrounds, indicated by those speaking a language other than English at home (LOTE), demonstrated significantly greater effects across several domains, including overall impact, daily living, appearance, and parent worry. Conclusions: A substantial proportion of children continued to experience impacts from non-severe burns across multiple domains, indicating that even small-area burns can have lasting effects. The factors associated with worse scores were the child being female, the families being linguistically diverse, and upper body burns.