Cognitive aging and Alzheimer's disease

Cognitive aging and Alzheimer's disease.

Cognitive aging and clinically probable Alzheimer's disease can be discriminated by means of clinical and neuropsychological testing, and structural and functional imaging techniques. Research at the level of cognitive brain systems and at the molecular level provides exciting new insights into the relation between aging and neurodegeneration. The advances at the clinical and at the basic resea...

Molecular and Cellular Mechanisms of Neuronal Plasticity in Normal Aging and Alzheimers Disease

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Magnesium and Alzheimers Disease: The Cholinergic Hypothesis

The cholinergic deficit in Alzheimer’s disease (AD) remains the cornerstone for the understanding of chemical signal transfer. Hypofunctions of cholinergic systems are significantly involved in the signs and symptoms of senile dementia of the Alzheimer type. Cognitive deficits in AD have been widely associated with dysfunction of the cholinergic system. As a diagnostic marker of AD the activity...

Cognitive Impairments in Siblings of Alzheimers Disease Patients: Possible Preclinical Signs of the Disease

Specific Agonists and Antagonists of Serotonergic Receptors in the Treatment of Cognitive Symptoms in Alzheimers Disease

In Alzheimer’s disease, decreasing activity of acetylcholine and GABA in the hippocampus and prefrontal cortex are combined with cognitive deficits and with the formation of beta-amyloid. Neurotransmitter alterations in these brain regions are described, while a neurotransmitter imbalance with hypoactivity of muscarinic cholinergic, serotonergic and GABAergic neurons and hyperactivity of noradr...