... em camundongos:
https://oglobo.globo.com/sociedade/ciencia/perda-de-memoria-causada-por-alzheimer-revertida-em-estudo-com-camundongos-23394712
Citando:
"- Cientistas da Universidade de Buffalo, nos Estados Unidos, conseguiram reverter temporariamente a perda de memória causada pela doença de Alzheimer, em testes com camundongos. Os resultados da pesquisa foram publicados na terça (22) na revista especializada "Brain"."
... ao cérebro:
https://www.revistapazes.com/por-que-o-silencio-e-tao-importante-para-nosso-cerebro/
Citando:
"Texto Drª Simone Carvalho – Fisioterapeuta, originalmente publicado em Physioquantum.
Florence Nightingale, uma mulher extraordinária, considerada a precursora da enfermaria moderna afirmou: “O ruído desnecessário é a falta de atenção mais cruel que se pode infligir a uma pessoa, que esteja saudável ou doente.” Quase dois séculos mais tarde, a ciência confirmou que nosso cérebro necessita do silêncio quase tanto quanto nossos pulmões do oxigênio."
https://observador.pt/2018/06/26/e-se-a-serotonina-ajudar-a-aprender-mais-depressa/
Citando:
"um artigo na Nature Communications em que relaciona a serotonina com a aprendizagem. Um efeito até agora desconhecido, segundo o comunicado de imprensa da instituição.
“Têm aparecido muitas sugestões sobre o papel que a serotonina pode ter na tomada de decisão e escolha, que incluem ideias sobre a influência no comportamento motor, castigo, oposição à dopamina, saciedade, desânimo, paciência e até aspetos de recompensa. Aqui, relatamos um efeito adicional: estimulação dos neurónios DRN 5-HT [neurónios no núcleo da rafe que produzem serotonina] podem aumentar a taxa a que os animais aprendem a partir das escolhas em ambientes dinâmicos”, escreveram os autores do artigo."
Ainda não se sabe se causa, se sintoma:
https://www.theguardian.com/society/2018/jun/21/alzheimers-link-to-herpes-virus-in-brain-say-scientists
Citando:
"The scientists did not set out to look for a link between viruses and dementia. Instead they were hoping to pinpoint genes that were unusually active in the brains of people with the earliest stage of Alzheimer’s. But when they studied brain tissue, comparing people with early-stage Alzheimer’s and healthy controls, the most striking differences in gene activity were not found in human genes, but in genes belonging to two herpes virus strains, HHV6A and HHV7. And the abundance of the viruses correlated with clinical dementia scores of the donors.
“We didn’t go looking for viruses, but viruses sort of screamed out at us,” said Ben Readhead, assistant professor at Arizona State University-Banner Neurodegenerative Disease Research Center and lead author."
http://www.newsnation.in/lifestyle/health-and-fitness/around-the-age-of-40-aerobic-exercises-on-daily-basis-may-boost-your-memory-up-study-article-186429.html
Citando:
"Researchers concluded that though exercise has no effect on total hippocampal volume, it did significantly increase the size of the left region of the hippocampus in humans. This is how exercise benefits your brain."
Já se sabia que não dormir nos frita o cérebro (entre aspas), agora há um estudo (em ratos):
https://www.joe.ie/news/scientific-research-shows-harmful-effect-sleep-deprivation-brain-589863
Citando:
"This may cause brain cells to eat other parts of the brain, a new study has found.
The brain contains cells known as astrocytes, which work to clear away worn-out brain cells.
However, researchers at the Marche Polytechnic University in Italy recently discovered that astrocytes work at a higher rate in a sleep-deprived brain, according to New Scientist, potentially causing long-term damage.
The researchers compared the brains of mice that had been allowed to sleep for as long as they wanted with the brains of mice that were kept awake an additional eight hours.
A third group of mice was kept awake for a number of days to induce chronic sleep deprivation.
It was found that astrocytes were 6% active in the synapses (junctions which link nerve cells in the brain) of well-rested mice, compared with activity of around 8% in the mice which had been kept awake for eight hours.
The mice that were chronically sleep-deprived showed astrocyte activity of around 13.5%, over double that of the well-rested mice.
"We show for the first time that portions of synapses are literally eaten by astrocytes because of sleep loss," said lead researcher Michele Bellesi."
https://uk.news.yahoo.com/exactly-wine-good-brain-scientists-173603780.html
Citando:
"They say past studies have shown that low-to-moderate intake of wine can delay the onset of neurodegenerative diseases such as Alzheimer’s and Parkinson’s but wanted to investigate the reasons behind it.So instead of examining wine directly, they looked at metabolites – the compounds that are left after the wine has passed through the gut.
The scientists then added these metabolites (extracted from waste samples from regular and moderate wine drinkers) to human cells under stress conditions resembling the initial stages of some neurodegenerative disorders.
In their experiment, they found that these metabolites were actually protecting the cells from dying.
According to the study, different intestinal flora – the microorganisms in your digestive tract – created different metabolites.
So basically, the gut bacteria influenced whether or not wine broke down into these protective compounds, suggesting that drinking a glass of pinot noir does not guarantee you will reap neurological benefits.
“Differences in our gut microbiota are leading to the different metabolites – which underpins the idea that humans benefit from food in different ways,” Dr Adelaida Esteban-Fernandez said."
http://edition.cnn.com/2017/04/10/health/hawaii-rat-lungworm-disease-parasite/
Citando:
"Rat lungworm disease, a parasite officially known as Angiostrongylus cantonensis, affects the brain and the spinal cord, according to the Centers for Disease Control and Prevention."
Como afecta as crianças e pode normalmente ser tratada então isso deve tornar-se uma prioridade:
http://m.economictimes.com/magazines/panache/parents-take-note-disturbed-sleep-can-affect-your-childs-mental-skills-behaviour/articleshow/57705243.cms
Citação:
"Obstructive sleep apnea is a common sleep disturbance which affects up to five per cent of all children.
(...)
Further, there is also a strong connection between sleep apnea and the loss of neurons or delayed neuronal growth in the developing brain.
(...)
For this study, published in the journal Scientific Reports, the team evaluated sleep patterns of 16 children with obstructive sleep apnea (OSA).
Each child also went through neuro-cognitive testing and had his or her brain scanned with non-invasive magnetic resonance imaging (MRI).
They found reductions in the volume of gray matter in multiple regions of the brains of children with disrupted sleep.
These included the frontal cortices -- which handle movement, problem solving, memory, language, judgement and impulse control -- the prefrontal cortices -- complex behaviours, planning, personality -- parietal cortices -- integrating sensory input -- temporal lobe -- hearing and selective listening -- and the brainstem -- controlling cardiovascular and respiratory functions. "
Aprenda a tocar um instrumento:
https://www.theguardian.com/education/2016/oct/24/want-to-train-your-brain-forget-apps-learn-a-musical-instrument
Citando:
"Together, these studies show that learning to play a musical instrument not only increases grey matter volume in various brain regions, but can also strengthen the long-range connections between them. Other research shows that musical training also enhances verbal memory, spatial reasoning, and literacy skills, such that professional musicians usually outperform non-musicians on these abilities."