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Also known as “sundowner’s syndrome,” sundowning is a set of symptoms or behaviors that can be seen in some people with Alzheimer’s disease and dementia, according to the Alzheimer’s ...
Neuromelanin (NM) is a dark pigment found in the brain which is structurally related to melanin. It is a polymer of 5,6-dihydroxyindole monomers. [1] Neuromelanin is found in large quantities in catecholaminergic cells of the substantia nigra pars compacta and locus coeruleus, giving a dark color to the structures. [2]
Keratinocytes contribute to skin pigmentation by holding the melanin originating in melanocytes and inducing melanogenesis through chemical signals directed at melanocytes. [ notes 2 ] The transfer of melanosomes to keratinocytes is a necessary condition for the visible pigmentation of the skin. [ 55 ]
Wendy Suzuki, Ph.D. a neuroscientist, reveals the habits she follows daily to protect her brain's health and reduce risk of dementia from exercise to friendship.
Dementia is a devastating condition that impacts almost 10% of older adults in the U.S. With that, it’s understandable to want to do what you can to lower the risk of developing it in the future.
Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis. Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair.
Dementia is a devastating condition that impacts up to 10 percent of older adults. And while there's no cure, getting diagnosed early can help patients get on a treatment plan and families prepare ...
It is caused by melanocyte or melanin depletion, or a decrease in the amino acid tyrosine, which is used by melanocytes to make melanin. [2] Some common genetic causes include mutations in the tyrosinase gene or OCA2 gene. [3] [4] As melanin pigments tend to be in the skin, eye, and hair, these are the commonly affected areas in those with ...
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