[Geriatrics. Focus on neurocognitive disorders].

Neurocognitive disorders are a major public health challenge, affecting 55 million people, and are projected to triple by 2050. This year's research highlights pathological mechanisms such as mitochondrial dysfunction and brain inflammation. Modifiable risk factors, such as vision loss, underscore the importance of early prevention.

Impact of dementia and mild cognitive impairment on bone health in older people.

Mild cognitive impairment, dementia and osteoporosis are common diseases of ageing and, with the increasingly ageing global population, are increasing in prevalence. These conditions are closely associated, with shared risk factors, common underlying biological mechanisms and potential direct causal pathways. In this review, the epidemiological and mechanistic links between mild cognitive impairment, dementia and skeletal health are explored.

Meta-analysis of the acoustic adaptation hypothesis reveals no support for the effect of vegetation structure on acoustic signalling across terrestrial vertebrates.

Acoustic communication plays a prominent role in various ecological and evolutionary processes involving social interactions. The properties of acoustic signals are thought to be influenced not only by the interaction between signaller and receiver but also by the acoustic characteristics of the environment through which the signal is transmitted. This conjecture forms the core of the so-called "acoustic adaptation hypothesis" (AAH), which posits that vegetation structure affects frequency and temporal parameters of acoustic signals emitted by a signaller as a function of their acoustic degradation properties.

[Mild cognitive impairment: how to find your way around as general practitioners?].

This article explores the diagnosis of Mild Cognitive Impairment (MCI) in general practice. It examines the subtypes of MCI and their specific diagnostic criteria for different neurodegenerative conditions such as Alzheimer's disease, Parkinson's disease, fronto-temporal dementia and cerebrovascular disorders. It highlights the preferential use of the Montreal Cognitive Assessment (MoCA) over the Mini-Mental State Examination (MMSE) for detecting MCI.