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In obstructive airway diseases such as asthma and chronic obstructive pulmonary disease (COPD), the extracellular matrix (ECM) protein amount and composition of the airway smooth muscle (ASM) is often remodelled, likely altering tissue stiffness. The underlying mechanism of how human ASM cell (hASMC) mechanosenses the aberrant microenvironment is not well understood.
Electronic cigarettes (e-cigarettes) are often perceived to be a less harmful alternative to tobacco cigarettes. Potentially due to this perception, they are used by people with pre-existing respiratory conditions, such as asthma, who otherwise would not smoke. Despite this, there are few studies exploring the health effects of e-cigarette use on pre-existing asthma.
Adverse prenatal conditions can induce intrauterine growth restriction and increase the risk of adulthood metabolic disease. Mechanisms underlying developmentally programmed metabolic disease remain unclear but may involve disrupted postnatal circadian rhythms and kisspeptin signalling.
Airway-associated adipose tissue increases with body mass index and is a local source of pro-inflammatory adipokines that may contribute to airway pathology in asthma co-existing with obesity. Genetic susceptibility to airway adiposity was considered in the present study through kisspeptin/kisspeptin receptor signalling, known to modulate systemic adiposity and potentially drive airway remodelling.
Citation: Wang KCW, Elliot JG, Saglani S, et al. The airway smooth muscle layer is structurally abnormal in low birth weight infants: implications
Electronic cigarettes (e-cigarettes) are often perceived to be safer than smoking, which has led to some women switching to e-cigarettes during pregnancy. However, the effects of switching from smoking to e-cigarettes on both pregnancy outcomes and the foetus are largely unknown. This study aimed to investigate the effects of switching from tobacco smoking to e-cigarette use in very early pregnancy on birth outcomes, neurodevelopment and behaviour of the offspring.
Emerging data suggest that air pollution is a persistent source of neuroinflammation, reactive oxygen species, and neuropathology that contributes to central nervous system disorders. Previous research using animal models has shown that exposure to diesel exhaust causes considerable disruption of the blood-brain barrier, leading to marked neuroinflammation.
Alcohol pharmacotherapies pose unknown teratogenic risks in pregnancy and are therefore recommended to be avoided. This limits treatment options for pregnant individuals with alcohol use disorders (AUD). The information on the safety of these medications during pregnancy is uncertain, prompting a scoping review. The objective of this review was to investigate available information on the safety of alcohol pharmacotherapies in pregnancy.
The complex arborization of the feto-placental vasculature is crucial for optimal fetal nutrition, waste exchange and ultimately, development. Ethical and experimental limitations constrain research into the human placenta, hence experimental animal models such as mice and rats, are crucial to understand placental function. It is unclear how well the mouse and rat feto-placental vascular structure emulates human. Moreover, the implications of differences in vascular structure, especially in arborization, for placental function remain unclear.
Males are generally more susceptible to respiratory infections; however, there are few data on the physiological responses to such infections in males and...