There are a number of people in the world who experience loss of smell or smell disorder in their life period. While there are other people who apart from smell disorder even encounter loss of taste. But life is all about smell and taste. We enjoy our food and can tell the host the food is tasty. Smelling power alert human beings when a smoke emanates or in the case of gas leak. Smell and taste are an eternal part of human beings. In the absence of it life becomes tasteless. In medical terms loss of sense is known as hyposmia and total loss of it is called anosmia. In a recent study published in the Journal of Neuroscience dated January 13, 2010 the loss of smell disorder has been related to Alzheimer’s disease (AD).
The study was carried on the genetically engineered mice at NYU Langone Medical Center revealed that olfactory dysfunction – a common symptom of Alzheimer could be considered as an early warning tool for the disease. During the course of the study these mice developed amyloids in their brains, just akin to humans. In the case of Alzheimer disease amyloid pathology starts in the region of brain, which is responsible for smell, just above the nose. The article disclosed that the symptoms of this disease could be seen early in life, this novel olfactory would further help in the early detection of this disease, before the attrition of the brain. Noted co-author of the project, Daniel W. Wesson, PhD, of the NYU School of Medicine and the Nathan S. Kline Institute for Psychiatric Research in Orangeburg, New York said, this is an astonishing finding because just like a brain scan, a laboratory designed olfactory test would be an inexpensive way to detect Alzheimer at an early stage.
However, not all cases could be linked to the loss of smell with the Alzheimer, as there are various reasons for the loss of sense of smell like, after effect of different medications like that pertaining to allergy, nutritional deficiency, metabolic disorder or sinus or respiratory problem which occurs due to polyps of sinus disease. Sometimes head injury could result in an instant loss of smell which would be permanent in nature. At times due to cold weather there could be a temporary loss of smell. The nasal obstructions and sinus polyps could also be the reason behind temporary loss of smell and after sometime people would get back their loss of smell.
The loss of smell in a person could be gauged when a person complains about the food being tasteless. A person suffering from cold and flu could also complain about the loss of smell and taste for weeks. There are also herbal remedies available for AD like Clematis, Mugwort, Euphobia, fenugreek, Horse Radish etc.
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