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Brain mapping & network   
analysis for cognitive function
    
- Brain Network Mapping    
- Connectivity and   
Network Analysis in   
Neurodegenerative Disease
    
Clinical neuroscience   
& neuropsychology
    
> Pathophysiology & treatment   
for neurodegenerative    
diseases
    
- In Vivo Optical Imaging for   
Brains of Alzheimer's Disease   
and other organs
    
- Study of the mechanisms   
in low-frequency oscillation   
of the resting state brain
    
- The effects of Αβ1-40 on   
myosin phosphorylation   
in cerebrovascular smooth   
muscle cells
    
Research facility    
- Imaging facilities for    
in vivo imaging
     
- Animal Anesthesia and    
Physiological monitoring system
     
- Behavior test system     
- Others     
   


Research

The effects of Αβ1-40 on myosin phosphorylation
in cerebrovascular smooth muscle cells



Introduction

Alzheimer's disease

• Alzheimer's disease is the most common form of dementia among the older people.
• Alzheimer's disease is one of the brain disorder, it leads to memory loss and cognitive decline.
• Alzheimer's disease is neurologically characterized by the formation of senile plaques and neurofibrillary tangles in the brain and blood vessels.


Vascular dysfunction in AD

• Αβ peptides attenuate resting CBF (K Niwa et al., 2001)
Hemodynamic response decreased with increasing age of the animal in AD model mice (T Mueggler et al., 2003)



Ex vivo

Tissue isolation

Basilar artery (BA) was isolated from SD rat
• Connective tissue and fat tissue were removed from vessel
• Each vessel was incubated with Amyloid peptides for up to 6h.
 



In vivo

Cell culture

• A10 (rat embryonic vascular smooth muscle cell) was cultured.
• They were incubated at 37°in 5% CO2 and O2 balance with amyloid peptides.


Western blot & Calcium imaging



Histology

Immunocytochemistry

To confirm increase of myosin phosphorylation-induced by amyloid beta in A-10 cells, ICC will carried out with confocal microscopy.


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Laboratory for Cognitive Neuroscience and NeuroImaging in Department of Bio and Brain Engineering, KAIST 
tel +82 (0)42 350 4324 / yong@kaist.ac.kr 
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