What does it feel like to be a rat? We will never know, but some very unusual mice may now have an inkling.
In a series of new experiments, bits of rat brain grew inside the brains of mice. Donor stem cells from rats formed elaborate — and functional — neural structures in mice’s brains, despite being from a completely different species, researchers report in two papers published April 25 in Cell.
The findings are “remarkable,” says Afsaneh Gaillard,
The mastermind behind the Kardashians’ incredibly lucrative brands has been dubbed ‘amazing’ as she made her first appearance as the new investor on Dragons Den.
Emma Grede, 41, who grew up in east London, went from a college dropout to running some of the most successful companies in the world was a guest investor on the BBC One series on Thursday.
Emma, who co founded Khloe Kardashian’s wildly popular jeans company Good American, and Kim’s shapewear line SKIMS, was branded
Zusammenfassung: Forscher haben herausgefunden, dass das „Salience-Netzwerk“ des Gehirns nur dann aktiviert wird, wenn Medikamente intravenös und nicht oral eingenommen werden, was Einblicke in Suchtmechanismen bietet.
Der schnelle Eintritt von Medikamenten in das Gehirn, wie z. B. Injektionen oder Rauchen, weist ein höheres Suchtpotenzial auf als langsamere Methoden wie die orale Einnahme.
Diese Studie verwendete PET/fMRT-Bildgebung, um den Dopaminspiegel und die Gehirnaktivität als Reaktion auf die Verabreichung von Methylphenidat bei zwanzig Erwachsenen zu vergleichen.
Wichtige Fakten:
Cells hidden in the skull may point to a way to detect, diagnose and treat inflamed brains.
A detailed look at the skull reveals that bone marrow cells there change and are recruited to the brain after injury, possibly traveling through tiny channels connecting the skull and the outer protective layer of the brain. Paired with the discovery that inflammation in the skull is disease-specific, these new findings collectively suggest the skull’s marrow could serve as a target to track
A single molecule may play a central role in rejuvenating aging brains, albeit in different ways, new research suggests.
Studies of three different techniques for combating the cognitive decline that accompanies aging found that they all increase levels of a protein called platelet factor four, or PF4, in mice. This in turn improved the animals’ cognitive performance and improved biological signs of brain health, three research groups report August 16 in Nature Aging, Nature and Nature Communications.
Climate change may have propelled the evolution of humanity forward by giving humanity’s ancient ancestors bigger brains, a new study has suggested.
Researchers from Washington University in St Louis found increases in the brain sizes of ancient hominins (humanity’s ancestors) aligned with glacial phases more than 600,000 years ago.
The team developed a computer simulation to mathematically show how new mating habits and ‘parental cooperation’ needed to survive during an inhospitable Ice Age would have ‘sped up’ the evolution of
When Israeli lawmakers passed a deeply contentious law last Monday to weaken the Supreme Court, Prime Minister Benjamin Netanyahu did not linger in the voting chamber to celebrate.
Instead, the justice minister, Yariv Levin, an architect of the legislation, stayed to pose for selfies with fellow lawmakers as Mr. Netanyahu walked somberly from the room. Mr. Levin, not the prime minister, made a celebratory speech from the podium.
“We have made the first step in the important historic process of
The discovery of a “pause button” in the brains of mice could help scientists better understand Parkinson’s disease — and perhaps even develop new therapies.
Slow or arrested movement, the neuroscientists from Denmark explained, is one of the primary symptoms of the progressive and eventually debilitating neurological condition.
The team found that they could cause mice to freeze in place by stimulating certain nerve cells in a region of the brain known as the pedunculopontine nucleus, of “PPN”, for short.
Rats are extremely playful creatures. They love playing chase, and they literally jump for joy when tickled. Central to this playfulness, a new study finds, are cells in a specific region of rats’ brains.
Neurons in the periaqueductal gray, or PAG, are active in rats during different kinds of play, scientists report July 28 in Neuron. And blocking the activity of those neurons makes the rodents much less playful.
The results give insight into a poorly understood behavior, particularly
Deblina Sarkar makes little machines, for which she has big dreams. The machines are so little, in fact, that they can humbly inhabit living cells. And her dreams are so big, they may one day save your mind.
Sarkar is a nanotechnologist and assistant professor at MIT. She develops ultratiny electronic devices, some smaller than a mote of dust, that she hopes will one day enter the brain. She’s also a fan of Kung Fu movies and likes to dance
