Scientific sense
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Scientific researches in biomedicine
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Descubren cómo dos proteínas ayudan a mantener las células sanas - Lainformacion.com

Descubren cómo dos proteínas ayudan a mantener las células sanas - Lainformacion.com | Scientific sense | Scoop.it
Lainformacion.comDescubren cómo dos proteínas ayudan a mantener las células sanasLainformacion.comCientíficos del Instituto de Investigación Scripps (TSRI) en Estados Unidos han determinado cómo dos proteínas ayudan a crear orgánulos, o subunidades...

Via Mercedes Lachén
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Descubren cómo dos proteínas ayudan a mantener las células sanas - Lainformacion.com

Descubren cómo dos proteínas ayudan a mantener las células sanas - Lainformacion.com | Scientific sense | Scoop.it
Lainformacion.comDescubren cómo dos proteínas ayudan a mantener las células sanasLainformacion.comCientíficos del Instituto de Investigación Scripps (TSRI) en Estados Unidos han determinado cómo dos proteínas ayudan a crear orgánulos, o subunidades...

Via Mercedes Lachén
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Cell Signaling | Nature Publishing Group | nature.com

Cell Signaling | Nature Publishing Group | nature.com | Scientific sense | Scoop.it

This collection of original research, commentaries and reviews focused on Cell Signaling highlights the latest advances in signal transduction published by select Nature Publishing Group journals. These articles expose readers to the current state of the art in technologies used to study signalling pathways.


Via Lorea Etxeberria
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Do we only use 10% of our brains?

Do we only use 10% of our brains? | Scientific sense | Scoop.it
We love the idea that we could be much more intelligent or creative if we harnessed unused parts of our minds. Sadly, Claudia Hammond has some bad news.

Via Luis Miguel Barriga
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Un gen determina la resistencia a los medicamentos contra el cáncer - Noticias de Salud | abc.es

Un gen determina la resistencia a los medicamentos contra el cáncer - Noticias de Salud | abc.es | Scientific sense | Scoop.it
Un gen determina la resistencia a los medicamentos contra el cáncer.

Via Judith Valero Díaz
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NATURE: New Photo Snapshots Reveal Einstein’s Unusual Brain

NATURE: New Photo Snapshots Reveal Einstein’s Unusual Brain | Scientific sense | Scoop.it

Albert Einstein is considered to be one of the most intelligent people that ever lived, so researchers are naturally curious about what made his brain tick. Photographs taken shortly after his death, but never before analysed in detail, have now revealed that Einstein’s brain had several unusual features, providing tantalizing clues about the neural basis of his extraordinary mental abilities. While doing Einstein's autopsy, the pathologist Thomas Harvey removed the physicist's brain and preserved it in formalin. He then took dozens of black and white photographs of it before it was cut up into 240 blocks. He then took tissue samples from each block, mounted them onto microscope slides and distributed the slides to some of the world’s best neuropathologists. The autopsy revealed that Einstein’s brain was smaller than average and subsequent analyses showed all the changes that normally occur with ageing. Nothing more was analysed, however. Harvey stored the brain fragments in a formalin-filled jar in a cider box kept under a beer cooler in his office. Decades later, several researchers asked Harvey for some samples, and noticed some unusual features when analysing them. A study done in 1985 showed that two parts of his brain contained an unusually large number of non-neuronal cells called glia for every neuron. And one published more than a decade later showed that the parietal lobe lacks a furrow and a structure called the operculum. The missing furrow may have enhanced the connections in this region, which is thought to be involved in visuo-spatial functions and mathematical skills such as arithmetic.

 

Now, anthropologist Dean Falk of Florida State University in Tallahassee and her colleagues have obtained 12 of Harvey’s original photographs from the National Museum of Health and Medicine in Silver Spring, Maryland, analyzed them and compared the patterns of convoluted ridges and furrows with those of 85 brains described in other studies. Many of the photographs were taken from unusual angles, and show structures that were not visible in photographs that have been analysed previously. The most striking observation, says Falk, was “the complexity and pattern of convolutions on certain parts of Einstein's cerebral cortex”, especially in the prefrontal cortex, and also parietal lobes and visual cortex. The prefrontal cortex is important for the kind of abstract thinking that Einstein would have needed for his famous thought experiments on the nature of space and time, such as imagining riding alongside a beam of light. The unusually complex pattern of convolutions there probably gave the region and unusually large surface area, which may have contributed to his remarkable abilities.

 

Falk and her colleagues also noticed an unusual feature in the right somatosensory cortex, which receives sensory information from the body. In this part of Einstein’s brain, the region corresponding to the left hand is expanded, and the researchers suggest that this may have contributed to his accomplished violin playing. According to Sandra Witelson, a behavioural neuroscientist at McMaster University in Hamilton, Canada, who discovered that the parietal operculum is missing from Einstein’s brain, the study’s biggest contribution may be in encouraging further studies. “It makes clear the location and accessibility of photographs and slides of Einstein's brain,” she says. “This may serve as an incentive for other investigations of Einstein's brain, and ultimately of any consequences of its anatomical variations.”


Via Dr. Stefan Gruenwald
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Descubren un proceso indispensable para la formación de metástasis en el cáncer de colon

Descubren un proceso indispensable para la formación de metástasis en el cáncer de colon | Scientific sense | Scoop.it
El estudio de científicos del IRB de Barcelona revela que las células tumorales necesitan aliarse con células sanas para poder colonizar los órganos durante el proceso.

Via Raquel Antón Saiz
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Crean una «medusa de ADN» para captar células tumorales

Crean una «medusa de ADN» para captar células tumorales | Scientific sense | Scoop.it
Es capaz de desplazarse por el torrente sanguíneo de enfermos de leucemia y capturar con sus tentáculos las células malignas...

Via Cristina Morales, Juan C Hernandez H
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París pedirá que la UE prohíba el maíz transgénico si se verifica como tóxico

París pedirá que la UE prohíba el maíz transgénico si se verifica como tóxico | Scientific sense | Scoop.it
París pedirá prohibición de maíz si es tóxico El primer ministro francés ha solicitado una verificación del polémico estudio en ratas que durará varias semanas.

Via Mikaela Miqueleiz Garde, Maria Becker Loyola
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Desvelado el mecanismo de replicación de la gripe / Noticias / SINC - Servicio de Información y Noticias Científicas

Desvelado el mecanismo de replicación de la gripe / Noticias / SINC - Servicio de Información y Noticias Científicas | Scientific sense | Scoop.it
SINC, Servicio de Información y Noticias Científicas, plataforma multimedia de comunicación científica...

Via Patricia Arnaiz Jimenez
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Patentan un método para reducir los efectos secundarios de la quimioterapia

Patentan un método para reducir los efectos secundarios de la quimioterapia | Scientific sense | Scoop.it
SINC, Servicio de Información y Noticias Científicas, plataforma multimedia de comunicación científica...

Via Judith Valero Díaz
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Un error en las células madre relaciona el cáncer con el envejecimiento / Noticias / SINC - Servicio de Información y Noticias Científicas

Un error en las células madre relaciona el cáncer con el envejecimiento / Noticias / SINC - Servicio de Información y Noticias Científicas | Scientific sense | Scoop.it

Un nuevo estudio explica cómo se degradan con la edad las funciones celulares y qué importancia tiene este declive en el desarrollo de enfermedades tumorales. Los cambios en el comportamiento de las células madre probablemente desempeñan un papel importante en el proceso.


Via Raquel Ordoñez, Naroa Serna Romero, Lorea Etxeberria
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Estudian cómo afectan las placas de beta amiloide al cerebro con alzhéimer

Estudian cómo afectan las placas de beta amiloide al cerebro con alzhéimer | Scientific sense | Scoop.it
SINC, Servicio de Información y Noticias Científicas, plataforma multimedia de comunicación científica...

Via Judith Valero Díaz
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Crean una «medusa de ADN» para captar células tumorales

Crean una «medusa de ADN» para captar células tumorales | Scientific sense | Scoop.it
Es capaz de desplazarse por el torrente sanguíneo de enfermos de leucemia y capturar con sus tentáculos las células malignas...

Via Cristina Morales, Juan C Hernandez H
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Genetic Test Changes Game in Cancer Prognosis

Genetic Test Changes Game in Cancer Prognosis | Scientific sense | Scoop.it
A new ocular melanoma test is in a class by itself, but researchers say it is a taste of what may be coming as they continue to investigate the genes of cancer cells.

Via Cancer Commons, Elyse Page
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New gene triples risk for Alzheimer's disease; may give clues into causes

New gene triples risk for Alzheimer's disease; may give clues into causes | Scientific sense | Scoop.it
Scientists have identified a new gene variant that seems to strongly raise the risk for Alzheimer's disease, giving a fresh target for research into treatments for the mind-robbing disorder. (More research needed!
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La primera terapia génica llegará a Europa en 2013

La primera terapia génica llegará a Europa en 2013 La Comisión Europea autoriza un medicamento capaz de corregir el gen defectuoso en una enfermedad rara.

Via María Caño Calle, Maria Becker Loyola
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Estudian cómo afectan las placas de beta amiloide al cerebro con alzhéimer

Estudian cómo afectan las placas de beta amiloide al cerebro con alzhéimer | Scientific sense | Scoop.it
SINC, Servicio de Información y Noticias Científicas, plataforma multimedia de comunicación científica...

Via Judith Valero Díaz
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