Expert reviews in molecular medicine · 2026
Obesity-Related Cognitive Impairment: An Update Overview of Mechanisms and Treatments.
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Zhong Chuanyu, Chen Kai, Lin Shu, Huang Yinqiong
Аннотация
BACKGROUND: Lifestyle changes and unhealthy eating habits have led to a sharp rise in obesity rates worldwide. Obesity is closely associated with a range of complications, including cognitive impairment and dementia. Accumulating evidence indicates that obesity negatively affects cognitive function and may increase the risk of neurodegenerative diseases. Conversely, cognitive dysfunction may further contribute to the development and progression of obesity. With growing attention in this field, obesity-related cognitive impairment has emerged as an important research focus at the intersection of metabolic and neurological disorders.
METHODS: This article reviews the potential mechanisms underlying obesity-related cognitive impairment and summarizes emerging therapeutic strategies.
RESULTS: The development and progression of obesity-related cognitive impairment involve multiple mechanisms, including insulin resistance, systemic and central inflammation, immune dysregulation, microcirculatory alterations and changes in neurotransmitters and synaptic plasticity. Recent studies have focused on the adipose tissue-brain axis and the microbiota-gut-brain axis, in particular, the targeted effects of extracellular vesicles released from adipose tissue and microbiota on the brain.
CONCLUSIONS: This article systematically reviews the mechanisms underlying obesity-related cognitive impairment and presents novel therapeutic strategies.
METHODS: This article reviews the potential mechanisms underlying obesity-related cognitive impairment and summarizes emerging therapeutic strategies.
RESULTS: The development and progression of obesity-related cognitive impairment involve multiple mechanisms, including insulin resistance, systemic and central inflammation, immune dysregulation, microcirculatory alterations and changes in neurotransmitters and synaptic plasticity. Recent studies have focused on the adipose tissue-brain axis and the microbiota-gut-brain axis, in particular, the targeted effects of extracellular vesicles released from adipose tissue and microbiota on the brain.
CONCLUSIONS: This article systematically reviews the mechanisms underlying obesity-related cognitive impairment and presents novel therapeutic strategies.