Alzheimer's disease & dementia

Odor biomarker for Alzheimer's disease

A new study from the Monell Center, the U.S. Department of Agriculture (USDA), and collaborating institutions reports a uniquely identifiable odor signature from mouse models of Alzheimer's disease. The odor signature appears ...

Alzheimer's disease & dementia

A new culprit of cognitive decline in Alzheimer's disease

It has long been known that patients with Alzheimer's disease have abnormalities in the vast network of blood vessels in the brain. Some of these alterations may also contribute to age-related cognitive decline in people ...

Alzheimer's disease & dementia

Inflammatory changes in the brain twenty years before Alzheimer onset

Roughly twenty years before the first symptoms of Alzheimer's disease appear, inflammatory changes in the brain can be seen, according to a new study from Karolinska Institutet published in the medical scientific journal ...

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Pathology

Pathology is the precise study and diagnosis of disease. The word pathology is from Ancient Greek πάθος, pathos, "feeling, suffering"; and -λογία, -logia, "the study of". Pathologization, to pathologize, refers to the process of defining a condition or behavior as pathological, e.g. pathological gambling. Pathologies is synonymous with diseases. The suffix "path" is used to indicate a disease, e.g. psychopath.

Pathology addresses 4 components of disease: cause/etiology, mechanisms of development (pathogenesis), structural alterations of cells (morphologic changes), and the consequences of changes (clinical manifestations).

Pathology is further separated into divisions, based on either the system being studied (e.g. veterinary pathology and animal disease) or the focus of the examination (e.g. forensic pathology and determining the cause of death).

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