'The radiation gave mice without Alzheimer's a boost in brain activity, ...it surprised us to find that cell phone exposure, begun in early adulthood, protects the memory of mice otherwise destined to develop Alzheimer's symptoms," alibainisha Gary Arendash, kiongozi wa watafiti katika kituo cha Florida Alzheimer's Disease Research cha huko nchini Marekani.
The researchers showed that exposing old Alzheimer's mice to the electromagnetic waves generated by cell phones erased brain deposits of beta-amyloid, a protein strongly associated with Alzheimer's disease. Clumps of beta-amyloid form so-called brain plaques that are a hallmark of the disease. The scientists speculate the cell phone radiation increases brain temperature, causing brain cells to release the nasty plaques. They suspect a similar effect would show up in humans, and so cell phone radiation might be used to prevent and treat the debilitating disease for us".
Panya waliofanyiwa majaribio walikuwa mchanganyiko wa wenye tatizo la kusahau na wale wazima na kuwekwa kwenye simu ambayo ilikuwa 'on' kwa saa moja. Walifanyiwa hivi kila siku kwa jumla ya miezi kati ya saba hadi tisa.
Pamoja na matokeo hayo, bado inahitajika uchunguzi wa ziada kuona kama majibu hayo yatatoa matokeo yenye manufaa kwa binadamu kwani imewahi kutokea baadhi ya tafiti zikafaa wanyama lakini zisiwafaidie wanadamu. Matokeo yalionesha kuwa panya waliowekwa katika matumizi ya simu tangu wakiwa vijana walionesha uwezo mkubwa wa kumbukumbu tofauti na wenzao wagonjwa wa kusahau ambao hawakuwekwa kwenye mawimbi ya mnunurisho ya simu. Zaidi sana, panya wale wagojwa waliofanya vizuri waliweza kuwashinda hata panya wasiokuwa na ugonjwa ijapokuwa ni wazee.
Basi wanasayansi hawa wanadhani kuwa ule ujoto unaotokana na mnunurisho wa mawimbi ya simu unaweza ukawa unapasha seli za kwenye ubongo na hivyo kuua aina yoyote ya seli zinazosababisha Alzheimers. Vile vile, wanaamini kuwa joto hili huenda ndilo linalochangamsha mishipa ya damu na hivyo kuharakisha mtiririko na mzunguko wa damu katika ubongo hivyo kuchangia katika kurutubisha sehemu zioe za ubongo hasa zile zinazohusika na fikra pamoja na kumbukumbu.
Faida yake kwa binadamu imeelezwa hivi (How humans could benefit )
The memory test used on the mice was designed from a test used to determine if Alzheimer's disease, or its very early signs (mild cognitive impairment), are present in humans. "Since we selected electromagnetic parameters that were identical to human cell phone use and tested mice in a task closely analogous to a human memory test, we believe our findings could have considerable relevance to humans," Arendash said.
Arendash and his colleagues concluded that electromagnetic field exposure could help to prevent and treat Alzheimer's disease in humans. They are currently evaluating whether different sets of electromagnetic frequencies and strengths will produce more rapid and even greater cognitive benefits than those found in their current study. There has been recent controversy about whether electromagnetic waves from cell phones cause brain cancer. While many studies have found no risk, a review article last October concluded that some of the "higher quality" studies did show an associated risk. The World Health Organization and the National Institutes of Health are still conducting research on the topic, and some countries have issued guidelines for cell phone use, such as limiting use for children. The current study found no evidence of abnormal growth in brains of the Alzheimer's mice after many months of exposure to cell phone-level electromagnetic waves. The results are published in the Jan. 6 issue of the Journal of Alzheimer's Disease.
Habari kwa mujibu wa jarida tando la: www.livescience.com