BDNF Signaling in Vascular Dementia and Its Effects on Cerebrovascular Dysfunction, Synaptic Plasticity, and
1Department of Anatomy, Chonnam National University Medical School, Hwasun, Korea.
Insights
Low serum levels of Brain-Derived Neurotrophic Factor (BDNF) are linked to Vascular Dementia (VaD). Understanding BDNF
Area of Science:
- Neuroscience
- Neurology
- Biochemistry
Background:
- Vascular Dementia (VaD) is the second leading cause of dementia, marked by cognitive deficits and neuropathological changes.
- Brain-Derived Neurotrophic Factor (BDNF) plays crucial roles in neuronal survival, synaptic plasticity, and cognitive function.
- Reduced serum and cerebrospinal fluid BDNF levels are observed in VaD patients, suggesting its involvement in the disease.
Purpose of the Study:
- To review the current understanding of BDNF signaling's role in the neuropathology of Vascular Dementia.
- To explore how BDNF influences key pathological processes in VaD, including cerebrovascular dysfunction, synaptic impairment, and cholinergic deficits.
Main Methods:
- Literature review of existing studies on BDNF and Vascular Dementia.
- Analysis of research investigating BDNF levels and signaling pathways in VaD patients and models.
Main Results:
- Patients with VaD exhibit significantly lower serum BDNF levels compared to healthy individuals.
- BDNF deficiency is identified as a key indicator of VaD.
- BDNF signaling is implicated in cerebrovascular dysfunction, synaptic impairment, and cholinergic system abnormalities in VaD.
Conclusions:
- BDNF plays a critical role in the neuropathology of Vascular Dementia.
- BDNF levels serve as an important biomarker for VaD.
- Targeting BDNF signaling pathways may offer therapeutic strategies for preventing and treating VaD.
Abstract:
Vascular dementia (VaD) is the second most common type of dementia and is characterized by memory impairment, blood-brain barrier disruption, neuronal cell loss, glia activation, impaired synaptic plasticity, and cholinergic system abnormalities. To effectively prevent and treat VaD a good understanding of the mechanisms underlying its neuropathology is needed. Brain-derived neurotrophic factor (BDNF) is an important neurotrophic factor with multiple functions in the systemic circulation and the central nervous system and is known to regulate neuronal cell survival, synaptic formation, glia activation, and cognitive decline. Recent studies indicate that when compared with normal subjects, patients with VaD have low serum BDNF levels and that BDNF deficiency in the serum and cerebrospinal fluid is an important indicator of VaD. Here, we review current knowledge on the role of BDNF signaling in the pathology of VaD, such as cerebrovascular dysfunction, synaptic dysfunction, and cholinergic system impairment.
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