Overview on Experimental Models of Vascular Dementia and Vascular Cognitive Impairment

2021 ◽  
pp. 94-104
Author(s):  
Nidhi Tiwari ◽  
Jyoti Upadhyay ◽  
Mohd Nazam Ansari ◽  
Syed Shadab Raza ◽  
Wasim Ahmad ◽  
...  

: Vascular dementia (VaD) occurs due to cerebrovascular insufficiency, which leads to decreased blood circulation to the brain, thereby resulting in mental disabilities. The main causes of vascular cognitive impairment (VCI) are severe hypoperfusion, stroke, hypertension, large vessel disease (cortical), small vessel disease (subcortical VaD), strategic infarct, hemorrhage (microbleed), cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), and cerebral amyloid angiopathy (CAA),which leads to decreased cerebrovascular perfusion. Many metabolic disorders such as diabetes mellitus (DM), dyslipidemia, and hyperhomocysteinemia are also related to VaD. The rodent experimental models provide a better prospective for the investigation of the molecular mechanism of new drugs. A plethora of experimental models are available that mimic the pathological conditions and lead to VaD. This review article updates the current knowledge on the basis of VaD, risk factors, pathophysiology, mechanism, advantages, limitations, and the modification of various available rodent experimental models.


Author(s):  
Hugh Markus ◽  
Anthony Pereira ◽  
Geoffrey Cloud

Patients with cerebrovascular disease can develop dementia in the absence of stroke symptoms or as a consequence to stroke. In this chapter, concepts, classification, and definitions of vascular dementia are outlined with a discussion of the overlap between vascular dementia and Alzheimer's disease. Investigation of the vascular dementia patient for treatable causes and to inform management is discussed as there are sections on therapy, promoting independence, and assessments of mental capacity. Depression is common in vascular dementia and a section is dedicated to the assessment and management of this. The concept of mild vascular cognitive impairment is also discussed.


2015 ◽  
Vol 9 (1) ◽  
pp. 81-84 ◽  
Author(s):  
Eliasz Engelhardt ◽  
Lea T. Grinberg

Alois Alzheimer is best known for his description of neurofibrillary changes in brain neurons of a demented patient, identifying a novel disease, soon named after him by Kraepelin. However, the range of his studies was broad, including vascular brain diseases, published between 1894 and 1902. Alzheimer described the clinical picture of Arteriosclerotic atrophy of the brain, differentiating it from other similar disorders. He stated that autopsy allowed pathological distinction between arteriosclerosis and syphilis, thereby achieving some of his objectives of segregating disorders and separating them from syphilis. His studies contributed greatly to establishing the key information on vascular brain diseases, predating the present state of knowledge on the issue, while providing early descriptions of what would be later regarded as the dimensional presentation of the now called "Vascular cognitive impairment", constituted by a spectrum that includes a stage of "Vascular cognitive impairment not dementia" and another of "Vascular dementia".


Sign in / Sign up

Export Citation Format

Share Document