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Deafness in animals can occur as either unilateral (one ear affected) or bilateral (both ears affected). This occurrence of either type of deafness seems to be relatively the same in both mixed-breed animals and pure-breed animals. [5] Research has found a significant association between deafness in dogs and the pigment genes piebald and merle ...
A completely deaf, solid white, blue-eyed cat A deaf white cat with yellow eyes. This engraving depicts two cats on a wall with a dog barking below them. The spotted cat hisses at the dog while the deaf white cat dozes, unaware of the barking. Congenital sensorineural deafness occurs commonly in domestic cats with a white coat.
One of the genes that leads to deafness and a white coat in cats when mutated, KIT, [56] has been found to increase MITF expression. [57] Lethal white syndrome is a syndrome in horses caused by mutations in both copies of EDNRB. It leads to death from intestinal pseudo-obstruction due to Hirschsprung's disease.
The researchers looked at 181 potential risk factors, and then estimated how likely they are to predict dementia and cognitive impairment for people two, four, and 20 years after they turn 60.
Researchers have found a link between hearing loss and dementia. A recent study shows that people with hearing loss not using hearing aids had a 42% higher risk of all-cause dementia than people ...
Cerebral deafness (also known as cortical deafness or central deafness) is a disorder characterized by complete deafness that is the result of damage to the central nervous system. The primary distinction between auditory agnosia and cerebral deafness is the ability to detect pure tones, as measured with pure tone audiometry.
But in people with dementia—which is an umbrella term for mental decline and can be related to a number of diseases such as Alzheimer's—there’s a phenomenon known as “sundowning,” where ...
Canine cognitive dysfunction (CCD) is a disease prevalent in dogs that exhibit symptoms of dementia or Alzheimer's disease shown in humans. [1] CCD creates pathological changes in the brain that slow the mental functioning of dogs resulting in loss of memory, motor function, and learned behaviors from training early in life.