Download - Bionoticias 1ª semana de diciembre
Universidad de Salamanca
Facultad de Biología
Biblioteca
Bionoticias Noviembre (4ª) de 2014
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BioNoticias. Resumen de prensa semanal
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índice
Avisos de la Facultad 4
Biología 11
Biomedicina 17
Biotecnología 20
Neurociencia 27
Células madre y Epigenética 37
.Avisos de la Facultad
SEMANA DE LA CIENCIA EN EL IBFG: 1-4 diciembre
SEMINARIOS DE INVESTIGACIÓN. ED. DEPARTAMENTAL
Octubre - Diciembre de 2014
SEMINARIO INCYL 5/12
TALLER ACELERADOR DE STARTUPs
Programa Agrotech Startups de Telefonica Open Future
Si eres uno de los 100 seleccionados aceleramos tu proyecto con una
ayuda de hasta 50.000 euros
Este Jueves 4 de Diciembre
Sala de Grados del Aulario de la Facultad de Biología a las 12h
(constará de 1 h aprox)
Se tratarán los siguientes aspectos:
1) Telefónica Open Future_, el mayor hub global de emprendimiento on
y offline.
2) Conocer los recursos existentes en la plataforma con multitud de
herramientas para emprendedores.
3) Resolución de dudas y networking con los emprendedores.
Este es el Dosier de Extremadura Open Future que presentaremos en el
taller: http://we.tl/fL9rf8BWRM
+ info:
https://extremadura.openfuture.org/?utm_source=Webs+partners&utm_
medium=Banner+web&utm_content=Banners+Agrotech&utm_campai
gn=Banners+Agrotech+Partners
Extremadura Open Future es un programa que busca la transformación del tejido
empresarial de la Comunidad, bajo un modelo de innovación basado en el
emprendimiento tecnológico. Para conseguir este desafío, Extremadura cuenta
ahora con un valioso aliado que le permitirá avanzar en la creación de este
entorno de emprendimiento basado en la Innovación: Telefónica, la mayor
empresa de España por capitalización y la primera en volumen de inversión en
I+D. En su condición de operador de servicios integrados de tecnologías de la
información y las comunicaciones (TIC) es líder en presencia territorial.
NUEVO FACEBOOK DE LA BIBLIOTECA:
BIOBIBLIOTECA noticias, empleo, becas, actividades...
http://www.facebook.com/bibliotecadebiologia
BIOEMPLEO 1ª semana de Diciembre
Ofertas de trabajo para Biólogos y Biotecnólogos
Pulsa para leer:
https://drive.google.com/file/d/0BymhRstl4hkmMXlEOWM5Vjh4WG8
/view?usp=sharing
FORMACIÓN, VOLUNTARIADO Y ACTIVIDADES AL AIRE
LIBRE
4ª Semana de Noviembre
Pulsa para leer:
https://drive.google.com/file/d/0BymhRstl4hkma1FKQ2lfcE5mNXM/vi
ew?usp=sharing
ACTIVIDADES CULTURALES EN SALAMANCA
4ª Semana de Noviembre
Pulsa para leer:
https://drive.google.com/file/d/0BymhRstl4hkmSnZkTkxfTm1HVzA/vi
ew?usp=sharing
.Biología
El 55% del carbono de la Amazonía, en peligro por la explotación de las
zonas protegidas
La explotación agrícola, minera y maderera de las zonas protegidas del
Amazonas, sumada al incumplimiento de los derechos territoriales
indígenas, ponen en peligro los bosques de países tropicales. Esto se
Descubren que el ojo humano es capaz de ver luz infrarroja en algunos
casos
Cualquier libro de texto sobre ciencia de la visión nos dirá que no
podemos ver la luz infrarroja. Como los rayos X o las ondas de radio,
las ondas de luz infrarroja se encuentran fuera del espectro visible para
Los insectos de Nueva York eliminan la basura de las calles
En la ciudad que nunca duerme es fácil pasar por alto a pequeños seres
vivos como los insectos. Sin embargo, según un estudio estadounidense,
estos y otros artrópodos trabajan duro para eliminar los desechos en las
Un mapa digital predice las especies vegetales más adecuadas para
reforestar zonas de alta montaña
La técnica, desarrollada por investigadores de la Universidad de Huelva,
permite la restauración, a partir de la especie considerada original, de
determinadas áreas en las que en la actualidad ya no se encuentra la
El 40% de las golondrinas y el 10% de los gorriones han desaparecido
en España
Un estudio reciente demuestra que en la Unión Europea el 20% de las
aves se ha perdido en los últimos 30 años. Según la organización
SEO/BirdLife, la situación en España es similar, llegando a un declive
notable en el caso de golondrinas y gorriones en los paisajes españoles.
El XXII Congreso Español de Ornitología que se celebra en Madrid del
6 al 9 de diciembre permitirá que científicos y expert
Una musaraña gigante que vivió en Atapuerca hace 1,2 millones de años
consumía mamíferos más grandes que ella
La alimentación de unos animales tan pequeños como las musarañas de
dientes rojos (Beremendia fissidens) es un tema que actualmente genera
algunas controversias entre los paleontólogos especializados.
España publica el mayor número de artículos científicos sobre la Isla
Decepción
Un estudio publicado en la revista Antarctic Science revela que España
es el país del mundo con más trabajos científicos y de mayor impacto
sobre la Isla Decepción (Antártida). La Universidad de Granada es
El polo norte casi no tenía hielo hace cuatro millones de años
Según una investigación internacional con participación de la
Universidad Autónoma de Barcelona (UAB), el casquete de hielo en el
Ártico no ocupó su extensión actual hasta hace unos 2,6 millones de
Bilingüismo y párkinson comparten las mismas áreas de control
ejecutivo en el cerebro
Un trabajo publicado en la edición avanzada on line de la revista
Neuropsychologia, coordinado por Albert Costa, jefe del grupo de
investigación en Producción del Lenguaje y Bilingüismo (Speech
La pardela cenicienta vacunada confiere inmunidad a sus polluelos
durante años
Para combatir una patología de origen vírico en una población de
pardela cenicienta, un equipo de investigación, liderado por la
Universidad de Barcelona, ha probado una vacuna en las madres y ha
estudiado su respuesta inmunitaria a la infección. Los resultados
demuestran que las hembras protegen de forma inmunitaria a sus crías
hasta seis años después de ser vacunadas con el patógeno.
Describen más de 80.000 nuevas especies de hongos
Científicos de 24 países han analizado 365 muestras de suelo
procedentes de diversos ecosistemas de todo el mundo con el fin de
profundizar en la diversidad de hongos del planeta, un campo poco
España posee la mayor superficie marina protegida para las aves
Un informe de BirdLife International, publicado esta semana, revela una
escasa protección del medio marino en la mayor parte de países
europeos. En España, aunque solo el 5% del territorio marino está
La proliferación de erizos de mar reduce los bosques de algas
Los erizos son invertebrados marinos que actúan como agentes
modeladores de la riqueza biológica de los fondos oceánicos. Pero una
proliferación excesiva de estos animales bentónicos también puede tener
El Niño afecta al crecimiento de los niños de Perú
El Niño es un fenómeno climático que ocurre de forma cíclica pero muy
irregular, con un intervalo de entre dos y siete años, en el Océano
Pacífico tropical, que sufre un brusco incremento en la temperatura de
ADN pegado a un cohete sobrevive a un vuelo espacial
Los plásmidos son moléculas de ADN extracromosómico que confieren
ventajas a las células que los llevan, como resistencia a determinados
antibióticos o producción de marcadores fluorescentes. Investigadores
Los perros distinguen los diferentes componentes del habla humana
¿Tu perro obedece inmediatamente a una orden y responde por su
nombre? Aunque muchos dirían que su mejor amigo entiende todo, lo
que en realidad hace el cerebro canino es diferenciar entre los sonidos
Ecosistema caribeño exótico que podría tener un equivalente en una
luna del planeta Júpiter
Un raro ecosistema submarino ubicado frente a la costa occidental de
Cuba y caracterizado por una simbiosis llamativa entre bacterias y
crustáceos, y por la conducta también singular de estos últimos,
La radiación ultravioleta aumenta la capacidad de captura de CO2 en el
Ártico
Un estudio liderado por investigadores del Consejo Superior de
Investigaciones Científicas demuestra que la radiación ultravioleta
aumenta la capacidad de captura de CO2 del océano del Ártico al
La FBBVA reconoce con sus premios a quienes pasan a la acción en
conservación de la biodiversidad
La Asociación Trashumancia y Naturaleza, el Instituto Smithsonian de
Investigaciones Tropicales, en Panamá y el periodista Javier Gregori
han sido galardonados con los premios a la Conservación de la
Biodiversidad de la Fundación BBVA.
Las selvas tropicales fragmentadas pierden diversidad
Los árboles pueden llegar a vivir más de mil años y sus respuestas a las
perturbaciones humanas no siempre son inmediatas. Investigadores de
Brasil y Australia han realizado un estudio experimental en
La geometría de la estructura celular
Artículo, del blog Bitnavegantes, que recomendamos por su interés. La
arquitectura imita la vida, al menos cuando se trata de esas rampas en
espiral en garajes de estacionamiento de varios pisos. Apiladas y
Los pájaros pueden valerse de su olfato para escoger una pareja
adecuada
La elección de pareja es a menudo la decisión más importante en las
vidas de humanos y animales. Unos científicos han encontrado la
primera evidencia de que las aves pueden elegir la suya a través del
Obtienen la secuencia genética del ciempiés
Los ciempiés, esas criaturas con muchas patas que a veces nos
sobresaltan en nuestras casas y jardines, han sido secuenciados
genéticamente por vez primera. El logro es fruto del trabajo de un
.Biomedicina
Demuestran la relación de 40 variantes de ADN con el cáncer de mama
hereditario
Científicos del Instituto de Biología y Genética Molecular de Valladolid
han empleado una herramienta que han patentado, un vector adaptado a
realizar ensayos funcionales de ‘splicing’, para demostrar la relación
Un modelo predice los efectos de las sustancias químicas en la salud
El análisis de fármacos, productos naturales y sustancias
medioambientales permite identificar los fragmentos químicos
responsables de causar un efecto terapéutico o perjudicial para la salud
Desvelado el mapa más avanzado de interacciones entre proteínas
humanas
El Centro de Investigación del Cáncer de Salamanca ha publicado un
trabajo en la revista científica Cell que servirá para entender mejor el
papel de las proteínas en las células humanas. El mapa de las
Vivir cerca de zonas verdes reduce la obesidad infantil
La obesidad en niños puede verse reducida al vivir cerca de zonas
verdes. Así lo indica una nueva investigación, que subraya cómo
dependiendo del tipo de espacio verde los beneficios podrían ser
Nueva cátedra de Medicina Regenerativa y Bioingeniería de Tejidos
La Universidad Carlos III de Madrid (UC3M), el Instituto de
Investigación Sanitaria de la Fundación Jiménez Díaz (IISFJD) y el
Centro de Investigaciones Energéticas, Medioambientales y
Las matemáticas revelan que el tratamiento simultáneo contra el VIH y
la hepatitis C aumenta su éxito
Un investigador español ha colaborado en un análisis matemático,
publicado recientemente en la revista Science Translational Medicine,
que concluye que la terapia conjunta frente al VIH en pacientes que
Las matemáticas revelan que el tratamiento simultáneo contra el sida y
la hepatitis C aumenta su éxito
Un investigador español ha colaborado en un análisis matemático,
publicado recientemente en la revista Science Translational Medicine,
que concluye que la terapia conjunta frente al sida en pacientes que
Bilingüismo y párkinson comparten las mismas áreas de control
ejecutivo en el cerebro
Un nuevo estudio sugiere que la enfermedad de Parkinson, ya desde sus
primeros estadios, afecta a la capacidad de gestionar en las personas
bilingües las dos lenguas, lo que dificulta los cambios y la gestión de la
La detección del cáncer de colon solo llega al 20% de la población
española
El cáncer de colon es el tumor de mayor incidencia en España, con unos
30.000 casos nuevos al año. Los programas de cribado, que detectan el
tumor de manera precoz en personas mayores de 50 años y sin
La inmunoterapia demuestra eficacia contra el cáncer de vejiga
metastásico
Hasta hoy, la inmunoterapia oncológica, que reactiva las defensas del
organismo para aniquilar el cáncer, solo había mostrado prometedores
resultados contra tumores de piel, riñón y pulmón. Ahora, la revista
Nature publica cinco estudios que prueban su poder para reducir el
Aumenta la tasa de hospitalizaciones tras años de descenso
En 2013 aumentó en un 0,1% la tasa de hospitalización, según la última
Encuesta de Morbilidad Hospitalaria realizada por el Instituto Nacional
de Estadística (INE). Las causas principales fueron las enfermedades del
aparato circulatorio y digestivo. Los fallecimientos en hospitales
descendieron en un 1,9% con respecto a 2012.
El sobrepeso y la obesidad provocan medio millón de nuevos casos de
cáncer cada año
Un nuevo estudio, publicado hoy en The Lancet Oncology y realizado
por la Agencia Internacional para la Investigación sobre el Cáncer,
muestra que cerca de medio millón de los nuevos casos de cáncer por
año se pueden atribuir al alto índice de masa corporal de la población.
.Biotecnología
New path of genetic research: Scientists uncover four-stranded elements
of maize DNA
Researchers have identified DNA elements in maize that could affect
the expression of hundreds or thousands of genes. The general public
thinks of DNA as two connected strands known as the double helix. But
Novel technique for gene insertion by genome editing
Using a novel gene knock-in technique, effective insertion of an
exogenous gene was demonstrated in human cells and in animal models,
including silkworms and frogs. This strategy universally enables gene
Vitamin supplement successfully prevents noise-induced hearing loss
A way to prevent noise-induced hearing loss has been found in a mouse
using a simple chemical compound that is a precursor to vitamin B3.
This discovery has important implications not only for preventing
Protein kinase R and dsRNAs, new regulators of mammalian cell
division
Scientists have revealed that the dsRNAs and Protein Kinase R (PKR)
regulate division of mammalian cells. This finding will provide
important clues to understanding the process of tumor formation and the
How are sea anemones so good at producing nerve cells?
A research group has revealed how a seemingly simple animal is able to
produce nerve cells throughout its entire body. The study shows that the
stem cells that a sea anemone uses to generate its nervous system are
Revealed: How bacteria drill into our cells and kill them
A team of scientists has revealed how certain harmful bacteria drill into
our cells to kill them. Their study shows how bacterial ‘nanodrills’
assemble themselves on the outer surfaces of our cells, and includes the
Sweet smell of success: Researchers boost methyl ketone production in
e. coli
Researchers have engineered E. coli bacteria to convert glucose into
significant quantities of methyl ketones, a class of chemical compounds
primarily used for fragrances and flavors, but highly promising as clean,
Test for horse meat developed
A fast, cheap alternative to DNA testing has been developed as a means
of distinguishing horse meat from beef. Because horses and cattle have
different digestive systems, the fat components of the two meats have
Revolutionizing genome engineering
Genome engineering with the RNA-guided CRISPR-Cas9 system in
animals and plants is changing biology. It is easier to use and more
efficient than other genetic engineering tools, thus it is already being
Duality in the human genome
Human genomes are extraordinarily individual -- a challenge for
personalized medicine. Results of a new study show that most genes can
occur in many different forms within a population: On average, about
Natural 'high' could avoid chronic marijuana use
Replenishing the supply of a molecule that normally activates
cannabinoid receptors in the brain could relieve mood and anxiety
disorders and enable some people to quit using marijuana, a new study
Unravelling the complexity of proteins
Knowledge of the three-dimensional structures of proteins is essential
for understanding biological processes. Structures help to explain
molecular and biochemical functions, visualize details of
Bitter food but good medicine from cucumber genetics
High-tech genomics and traditional Chinese medicine come together as
researchers identify the genes responsible for the intense bitter taste of
wild cucumbers. Taming this bitterness made cucumber, pumpkin and
Halting the hijacker: Cellular targets to thwart influenza virus infection
Methods for thwarting influenza viruses by shutting down the cellular
machinery they need, like cutting the fuel line on a bank robber’s
getaway car, have been revealed by scientists.
Ancient dental plaque: A 'whey' into our milk drinking past?
We drink milk because it is good for us, but we rarely stop to think why.
Archaeologists and geneticists have been puzzling this question since it
was revealed that the mutations which enable adults to drink milk are
under the strongest selection of any in the human genome.
Mind the gap: How new insight into cells could lead to better drugs
A new insight into immune cells could lead to more effective drug
treatments. Researchers investigated how different types of immune
cells communicate with each other -- and how they kill cancerous or
Desvelan cómo entra en el SNC la neurotoxina del tétanos
Un estudio revela cómo penetra en el sistema nervioso central la
neurotoxina del tétanos. Los investigadores creen que los resultados
servirán para mejorar la terapia frente a esta enfermedad.
Bioengineering study finds two-cell mouse embryos already 'talking'
about their future
Bioengineers have discovered that mouse embryos are contemplating
their cellular fates in the earliest stages after fertilization when the
embryo has only two to four cells, a discovery that could upend the
Hydrothermal settlers: Barnacle holds clues about how climate change
is affecting the deep ocean
The deep ocean seems so remote that it is difficult to imagine any sort
of human-generated change making an impact on deep-sea life. It is
even more difficult to collect or examine evidence from the deep ocean
Classical enzymatic theory revised by including water motions
Enzymes are macromolecular biological catalysists that lead most of
chemical reactions in living organisms. The main focus of enzymology
lies on enzymes themselves, whereas the role of water motions in
Cells' natural response to chronic protein misfolding may do more harm
than good
Protein misfolding diseases such as cystic fibrosis and Alzheimer’s may
be seriously exacerbated by the body’s own response against that
misfolding, according to a new study.
'Scary' centipede's genes reveal how life evolved on our planet
Centipedes, those many-legged creatures that startle us in our homes
and gardens, have been genetically sequenced for the first time. An
international team of over 100 scientists today reveals how this humble
Link between DNA transcription, disease-causing expansions
Researchers in human genetics have known that long nucleotide repeats
in DNA lead to instability of the genome and ultimately to human
hereditary diseases such Freidreich's ataxia and Huntington's disease.
Trojan horse tactic gives parasites edge over immune systems
Parasites use Trojan horse subterfuge to suppress the immunity of their
victims when causing infection, according to a study. Scientists have
shown that parasites are able to secrete tiny sealed packages of genetic
Vultures evolved an extreme gut to cope with disgusting dietary habits
How is it that vultures can live on a diet of carrion that would at least
lead to severe food-poisoning, and more likely kill most other animals?
Body size requires hormones under control
The proper regulation of body size is of fundamental importance, but
the mechanisms that stop growth are still unclear. Scientists have shed
new light on how animals regulate body size. The researchers
Sialic acid shields human cells from attack by immune system
Biochemists have identified molecular structures that allow the immune
system to tell friend from foe. The researchers identified and
crystallized a complex that forms the contact point between the healthy
.Neurociencia
Vitamin supplement successfully prevents noise-induced hearing loss
A way to prevent noise-induced hearing loss has been found in a mouse
using a simple chemical compound that is a precursor to vitamin B3.
This discovery has important implications not only for preventing
Brain representations of social thoughts accurately predict autism
diagnosis
Researchers have created brain-reading techniques to use neural
representations of social thoughts to predict autism diagnoses with 97
percent accuracy. This establishes the first biologically based diagnostic
Wake Up and Breathe program benefits ICU patients
Waking intensive care unit patients and having them breathe on their
own decreased both sedation levels and coma prevalence. The Wake Up
and Breathe program also showed a trend toward reduced delirium in a
Tailor-made pharmaceuticals as basis for novel antidepressants
SAFit-ligands provide the foundation for a mechanistically novel
treatment of stress-related psychiatric disorders. FKBP51 and FKBP52
are proteins which regulate multiple cellular activities. Most importantly
The Biology of Anxious Temperament May Lie With a Problem in an
Anxiety 'Off Switch'
Persistent anxiety is one of the most common and distressing symptoms
compromising mental health. Most of the research on the neurobiology
of anxiety has focused on the generation of increased anxiety, i.e., the
New cause of child brain tumor condition identified
Doctors and scientists have identified changes in a gene, which can
increase the risk of developing brain tumors in children with a rare
inherited condition called Gorlin syndrome. Most people with Gorlin
Impact of traumatic brain injury on longterm memory explored
A new article provides insight into the variable impact of traumatic
brain injury on long-term memory. Memory impairment affects 54% to
84% of individuals with TBI. While the variable impact of TBI on long-
Diabetes in midlife linked to significant cognitive decline 20 years later
People diagnosed with diabetes in midlife are more likely to experience
significant memory and cognitive problems during the next 20 years
than those with healthy blood sugar levels, new research suggests. The
Brain folding study defines two distinct groups of mammals
Programs that control the production of neurons during brain
development determine how the brain folds, researchers report. The
researchers analyzed the gyrencephaly index, indicating the degree of
How early trauma influences behavior
Traumatic and stressful events during childhood increase the risk to
develop psychiatric disorders, but to a certain extent, they can also help
better deal with difficult situations later in life. Researchers have studied
Natural 'high' could avoid chronic marijuana use
Replenishing the supply of a molecule that normally activates
cannabinoid receptors in the brain could relieve mood and anxiety
disorders and enable some people to quit using marijuana, a new study
High school football players show brain changes after one season, even
in absence of concussions
Some high school football players exhibit measurable brain changes
after a single season of play even in the absence of concussion,
according to a new study.
Imaging shows brain connection breakdown in early Alzheimer's
disease
Changes in brain connections visible on MRI could represent an
imaging biomarker of Alzheimer's disease, according to a new study.
Alzheimer's disease is the most common form of dementia. As many as
PET/CT shows pituitary abnormalities in veterans with PTSD
Hybrid imaging with positron emission tomography and computed
tomography (PET/CT) in the pituitary region of the brain is a promising
tool for differentiating military veterans with post-traumatic stress
Bilingualism delays Alzheimer's manifestation by more than four years
The symptoms of Alzheimer disease (AD) manifest themselves about
four to five years later in bilinguals as opposed to monolinguals. In
bilinguals, the disease onset was estimated at the age of 77, while in
Structure of Neuron-Connecting Synaptic Adhesion Molecules
Discovered
A research team has found the three-dimensional structure of synaptic
adhesion molecules, which orchestrate synaptogenesis. The research
findings also propose the mechanism of synapses in its initial formation.
Brain regions that encode words, grammar, story identified
Scientists have produced the first integrated computational model of
reading, identifying which parts of the brain are responsible for such
sub-processes as parsing sentences, determining the meaning of words
The genetics of memory performance
In the largest study of the genetics of memory ever undertaken, an
international research team has discovered two common genetic variants
that are believed to be associated with memory performance. The
Immune checkpoint inhibitors may work in brain cancers
New evidence that immune checkpoint inhibitors may work in
glioblastoma and brain metastases was presented today by Dr Anna
Sophie Berghoff at the ESMO Symposium on Immuno-Oncology 2014
System reveals how our brains, bodies change as we fall asleep
A system to accurately track the dynamic process of falling asleep has
been developed, something has not been possible with existing
techniques. In their report, the research team describes how combining
Brain inspired data engineering
What if next-generation ICT systems could be based on the brain’s
structure and its cognitive and adaptive processes? A groundbreaking
paradigm of brain-inspired intelligent ICT architectures is being born.
Out of danger: Neural basis for avoiding threats
A key neuronal pathway that makes learning to avoid unpleasant
situations possible has been discovered by researchers. The work shows
that avoidance learning requires neural activity in the habenula
representing changes in future expectations.
Serotonin's early role in assembly of brain circuits
During the development of the cortex, different kinds of neurons must
migrate to attain their final destinations, before forming the essential
neural circuits necessary for good cognitive and emotional function. But
Chronic alcohol intake can damage white matter pathways across entire
brain
Chronic misuse of alcohol results in measurable damage to the brain. A
new study uses high-resolution structural magnetic resonance scans to
compare the brains of individuals with a history of alcoholism versus
Youths with a family history of substance use disorders have less
efficient forebrain
Youths with a family history of alcohol and other drug use disorders
have a greater risk of developing substance-use disorders (SUDs)
themselves than their peers with no such family histories. A new study
Fragile X study offers hope of new autism treatment
People affected by a common inherited form of autism could be helped
by a drug that is being tested as a treatment for cancer, according to
researchers. Fragile X Syndrome is the most common genetic cause of
New research supporting stroke rehabilitation
New research could help improve stroke patients' rehabilitation, experts
say. The research may provide useful applications for the care of stroke
patients who have restricted use of their upper limbs. If stroke patients
'Trigger' for stress processes discovered in brain
An important factor for stress has been identified by scientists. This is
the protein secretagogin that plays an important role in the release of the
stress hormone CRH and which only then enables stress processes in the
Drug to reduce side-effects of 'binge drinking' developed
A drug that could reduce the harmful side-effects of ‘binge drinking’,
especially by teenagers, has been successfully developed and tested by a
team of scientists. Researchers say that this development may also link
Stroke damage mechanism identified
A mechanism linked to the brain damage often suffered by stroke
victims has been discovered by scientists, who are now searching for
drugs to block it. Strokes happen when the blood supply to part of the
Teens with a history of TBI are nearly 4 times more likely to have used
crystal meth
Ontario students between grades 9 and 12 who said they had a traumatic
brain injury in their lifetime, also reported drug use rates two to four
times higher than peers with no history of TBI, according to research.
Why antidepressant may be effective in postpartum depression
An antidepressant commonly prescribed for women with postpartum
depression may restore connections between cells in brain regions that
are negatively affected by chronic stress during pregnancy, new
Gut microbiota influences blood-brain barrier permeability
Our natural gut-residing microbes can influence the integrity of the
blood-brain barrier, which protects the brain from harmful substances in
the blood, a new study in mice shows. The blood-brain barrier is a
highly selective barrier that prevents unwanted molecules and cells from
entering the brain from the bloodstream.
Seniors draw on extra brainpower for shopping
Holiday shopping can be mentally exhausting for anyone. But a new
study finds that older adults seem to need extra brainpower to make
shopping decisions -- especially ones that rely on memory. The study
Pain from rejection, physical pain may not be so similar after all
Over the last decade, neuroscientists have largely come to believe that
physical pain and social pain are processed by the brain in the same
way. But a new study shows that the two kinds of pain actually use
High-fructose diet in adolescence may exacerbate depressive-like
behavior
When animals consume a diet high in fructose throughout adolescence,
it can worsen depressive- and anxiety-like behavior and alter how the
brain responds to stress. "Our results offer new insights into the ways in
Why do so many seniors with memory loss and dementia never get
tested?
Despite clear signs that their memory and thinking abilities have gone
downhill, more than half of seniors with these symptoms haven’t seen a
doctor about them, a new study finds.
'Off switch' for pain discovered: Activating the adenosine A3 receptor
subtype is key to powerful pain relief
A way to block a pain pathway in animal models of chronic neuropathic
pain has been discovered by researchers, suggesting a promising new
approach to pain relief.
Copper on the brain at rest
Proper copper levels are essential to the health of the brain at rest, new
research shows. The brain consumes 20-percent of the oxygen taken in
through respiration. This high demand for oxygen and oxidative
An enzyme that fixes broken DNA sometimes destroys it instead,
researchers find
Enzymes inside cells that normally repair damaged DNA sometimes
wreck it instead, researchers have found. The insight could lead to a
better understanding of the causes of some types of cancer and
Dogs hear our words and how we say them
When people hear another person talking to them, they respond not only
to what is being said -- those consonants and vowels strung together into
words and sentences -- but also to other features of that speech -- the
Cognitive test battery developed to assess impact of long duration
spaceflights on astronauts' brain function
A cognitive test battery, known as Cognition, has been developed for
the National Space Biomedical Research Institute (NSBRI) to measure
the impact of typical spaceflight stressors (like microgravity, radiation,
Brain researchers pinpoint gateway to human memory
An international team of researchers has successfully determined the
location, where memories are generated with a level of precision never
achieved before. To this end the scientists used a particularly accurate
Prehistoric conflict hastened human brain's capacity for collaboration
Warfare not only hastened human technological progress and vast social
and political changes, but may have greatly contributed to the
evolutionary emergence of humans' high intelligence and ability to work
Isolation of important centres in brain results in age-related memory
deficits
Poor memory among the elderly can be explained by regions in the
hippocampus complex, an important part of the brain, becoming more
co-active during rest, thereby interacting less efficiently with other parts
How various brain areas interact in decisions
Our decisions can be pictured in the brain, and now scientists have been
able to show in a recent study which areas are most active in decision
making. Often the so-called prefrontal cortex not only apparently shows
Mindfulness techniques can help protect pregnant women against
depression
Pregnant women with histories of major depression are about 40 percent
less likely to relapse into depression if they practice mindfulness
techniques -- such as meditation, breathing exercises and yoga -- along
Alzheimer's disease: Molecular signals cause brain cells to switch into a
hectic state
Alzheimer's disease damages the nervous system in many different
ways. This is because the disease affects not only neurons but also other
brain cells, such as the astrocytes. These support the normal function of
Songbirds help scientists develop cooling technique to safely map
human brain
A new diagnostic technique — resulting from monitoring thousands of
courtship calls from songbirds — can be used to safely map the human
.Células madre y Epigenética
How are sea anemones so good at producing nerve cells?
A research group has revealed how a seemingly simple animal is able to
produce nerve cells throughout its entire body. The study shows that the
stem cells that a sea anemone uses to generate its nervous system are
Tremendous progress in development of skin stem cell treatments for
butterfly children
A major advancement has been made towards a future therapy for
butterfly children. A treatment with fibroblasts generated from induced
pluripotent stem cells has been highly successful in mice. The next step
Identifying the cellular origin of fibrosis
Researchers have identified what they believe to be the cells responsible
for fibrosis, the buildup of scar tissue. Fibrotic diseases, such as chronic
kidney disease and failure, lung disease, heart failure and cirrhosis of
Protein key to harnessing regenerative power of blood stem cells
identified by researchers
A protein that is integral to the regulation of human blood stem cell
regeneration has been uncovered by researchers. The study revealed that
stem cells which lack the protein have markedly increased ability to
Scientists identify bone cells that could help children who need
corrective facial surgery
Our bones are smart. Bones know that by adolescence it's time to stop
growing longer and stronger, and from that point on bones keep their
shape by healing injuries. Many factors cause craniofacial deformities,
Gene therapy cure for children with 'bubble baby' disease
Stem cell researchers cured 18 children born without a working immune
system due to life-threatening ADA-deficient Severe Combined
Immunodeficiency (SCID). Breakthrough stem cell gene therapy
Efficacy of new drug against stem cells that provoke onset, growth of
cancer, metastasis
An team of researchers has demonstrated the efficacy of a new drug
against cancerogenic stem cells, which cause the onset and development
of cancer, of relapse after chemotherapy and metastasis. This drug,
New ways to drain cancer's 'fuel tank' discovered
A potential weakness in cancer’s ability to return or become resistant to
treatment has been discovered, targeting the ‘fuel’ part of stem cells
which allows tumors to grow. By observing cancer stem cells in a lab
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