A chemical found in fish oil increases the daily survival of essential cells for vision that protect against age-related vision loss. According to the findings of a new study published in "Cellular and molecular neurobiology", a component of fish oil prevents retinal cells from dying.
The omega-3 fatty acid DHA, abundant in blue fish, and its photoreceptors precondition derivatives. They are sensitive to light and RPE (pigment epithelial retinal) – a layer of support cells under the retina – which process it.
Damage to these results to the degeneration of the macula – the central area of the retina. Fish oil contains two types of polyunsaturated fatty acids (PUFA) – omega-3 DHA (docosahexaenoic acid) and omega-6 AA (arachidonic acid), said researchers at Louisiana State University. They said that the chemicals in oily fish are preconditioned. cells to counteract future stressors, such as when the blood supply is interrupted for a short period.
The protective response will shift to a subsequent shortage of blood supply, very similar to immunity the vaccine confers against future exposures to the disease. The most widely available dietary source of EPA and DHA is cold-water blue fish, such as salmon, herring, mackerel, anchovy and sardine. The oils of these fish have a profile of about seven times more omega-3 oils than omega-6 oils. Before this new study, scientists had predicted that cases of blindness would increase from the current 36 million to 115 million by 2050, if the treatment is not improved with better financing. Part of the reasons behind this trend is the aging of the population, caused by a healthy life and the impact of modern medicine.
The World Health Organization (WHO) estimates that some of the highest rates of blindness and visual impairment are found in South Asia and sub-Saharan Africa. Data badysis from 188 countries suggests that there are more than 200 million people with moderate to severe visual impairment.
That number is expected to increase to more than 550 million by the year 2050, according to the estimate. Worldwide, chronic eye diseases are the leading cause of vision loss. Uncorrected refractive errors and non-operated cataracts are the two main causes of vision impairment.