These poor creatures.
is purportedly the largest to date on dementia in the toothed whales known as odontocetes. Researchers examined the brains of 22 dolphins and porpoises stranded on Scottish shores and discovered that four of them showed tell-tale signs of Alzheimer's in human patients. Chief among those signs were the presence of amyloid-beta plaques, which are believed to cause or at least be symptomatic of the deadly and still poorly understood Alzheimer's.
"These are significant findings that show, for the first time, that the brain pathology in stranded odontocetes is similar to the brains of humans affected by clinical Alzheimer's disease," said Mark Dagleish, a pathologist from the University of Glasgow who led the research, in aIn humans, Alzheimer's causes cognitive functions to deteriorate significantly, worsening a sufferer's speech, memory, recognition of loved ones, and the ability to perform basic tasks.
"While it is tempting at this stage to speculate that the presence of these brain lesions in odontocetes indicates that they may also suffer with the cognitive deficits associated with human Alzheimer's disease," he added, "more research must be done to better understand what is happening to these animals."
Nevertheless, the findings lend significant credence to the "sick-leader" theory, which posits that because dolphins are such social animals, healthy groups of them are led to their deaths by a leader in decline. But it's worth noting that Alzheimer's disease is not fully understood in humans, let alone wild animals. Even the prevailing theory that amyloid-beta plaques are in some way responsible or indicative of the disease"We were fascinated to see brain changes in aged dolphins similar to those in human aging and Alzheimer's disease," said study co-author Tara Spires-Jones, deputy director of the Centre for Discovery Brain Sciences at the University of Edinburgh.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Birmingham approaches grim milestone with homicidesThe City of Birmingham is approaching a grim milestone. Police say 138 people have died by homicide this year, but the efforts to stop this number from climbing are on-going.
続きを読む »
Seattle weather: Snow fades away for now, but extremely cold temperatures take overSnow wraps up, but temperatures continue to plummet overnight into Thursday before warming up again. FOX13
続きを読む »
Putin Actually Admits Situation in Occupied Areas Is ‘Extremely Difficult’Ukrainian President Volodymyr Zelensky handed out medals and “valuable gifts” to his troops in Bakhmut—as Russian President Vladimir Putin admitted the situation in territories now under Russian control remains precarious.
続きを読む »
‘Extremely dangerous’ arctic cold headed for Alabama: How cold will it get?The National Weather Service is not mincing words, warning that “extremely dangerous, life-threatening” arctic air will spread over Alabama following a cold front that should enter the state on Thursday evening and quickly shift southward.
続きを読む »
Several Alabama counties annouce warming stations ahead of extremely cold weatherSeveral counties in the WSFA coverage area have announced warming station openings.
続きを読む »
Woman, 42, extremely critical after she was shot inside Cobbs Creek home, police sayA 42-year-old woman is in extremely critical condition after Philadelphia police say she was shot in the head inside a Cobbs Creek home.
続きを読む »