Bionoticias 4ª semana de noviembre
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Universidad de Salamanca Facultad de Biología Biblioteca Bionoticias Noviembre (4ª) de 2014
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Revista de noticias sobre Biología, Biotecnología, Medioambiente, Neurociencias, etc. Elaborada por la biblioteca de la Facultad de Biología de la Universidad de Salamanca.
Transcript of Bionoticias 4ª semana de noviembre
Universidad de Salamanca
Facultad de Biología
Biblioteca
Bionoticias Noviembre (4ª) de 2014
MÁS INFORMACIÓN Y OFERTAS EN LA WEB DE LA BIOBLIOTECA : http://campus.usal.es/~bibliotecabiologia/
BioNoticias. Resumen de prensa semanal
Elaborado por la Biblioteca de Biología. Universidad de Salamanca
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Boletines anteriores en http://issuu.com/bibliotecabiologia
índice
Avisos de la Facultad 4
Biología 9
Biomedicina 15
Biotecnología 18
Neurociencia 26
Células madre y Epigenética 35
.Avisos de la Facultad
SEMANA DE LA CIENCIA EN EL IBFG: 1-4 diciembre
SEMINARIOS DE INVESTIGACIÓN. ED. DEPARTAMENTAL
Octubre - Diciembre de 2014
AVISO: CANCELACIÓN SEMINARIO CIALE 28/11
Por motivos personales, se cancela indefinidamente el seminario que se
iba a impartir en el CIALE el próximo viernes 28 de noviembre.
NUEVO FACEBOOK DE LA BIBLIOTECA:
BIOBIBLIOTECA noticias, empleo, becas, actividades...
http://www.facebook.com/bibliotecadebiologia
BIOEMPLEO 4ª semana de Noviembre
Ofertas de trabajo para Biólogos y Biotecnólogos
Pulsa para leer:
https://drive.google.com/file/d/0BymhRstl4hkmQ01JOUZKTTg3cmc/v
iew?usp=sharing
FORMACIÓN, VOLUNTARIADO Y ACTIVIDADES AL AIRE
LIBRE
4ª Semana de Noviembre
Pulsa para leer:
https://drive.google.com/file/d/0BymhRstl4hkmcEd1dG5Db2RrVTg/vi
ew
ACTIVIDADES CULTURALES EN SALAMANCA
4ª Semana de Noviembre
Pulsa para leer:
https://drive.google.com/file/d/0BymhRstl4hkmcXhsMFFFN1ZiNW8/v
iew?usp=sharing
.Biología
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
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
Un modelo predice cómo se adaptará cada especie al cambio climático
Debido al calentamiento global, los cambios ambientales son más
frecuentes y más impredecibles. Para conocer las posibles respuestas
evolutivas de las especies, un equipo internacional de científicos ha
Predecir el colapso de las redes entre especies ayuda a combatirlo
Investigadores del Consejo Superior de Investigaciones Científicas
(CSIC) han logrado predecir el momento en el se rompe la relación de
colaboración entre especies, provocado por el cambio global. De este
Descubren mecanismos de la “visión” de las plantas
Hace más de medio siglo, Harry Borthwick, Sterling Hendricks y sus
colaboradores, del Centro de Investigaciones de Beltsville del
Departamento de Agricultura de Estados Unidos, descubrieron que las
Las orcas ibéricas, cada vez más acorraladas
Gracias a los más de 11.200 avistamientos de cetáceos realizados en
diez años, investigadores españoles y portugueses han podido identificar
al detalle la presencia de las orcas en el golfo de Cádiz, el estrecho de
Un tsunami fosilizó cientos de pisadas de dinosaurios en Teruel
Investigadores de la Universidad de Zaragoza y de la Universidad
Complutense de Madrid han descubierto evidencias de que un gran
tsunami afectó a la provincia de Teruel hace 128 millones de años. Este
Bacterias con “sentido del tacto”
En una nueva investigación, se ha encontrado que una de las bacterias
infecciosamente más prolíficas del mundo consigue infectar a humanos,
animales e incluso plantas ayudándose de un mecanismo nunca antes
¿Fue el neandertal una subespecie del Ser Humano anatómicamente
moderno?
Los antropólogos han estado desconcertados durante mucho tiempo
respecto a la desaparición de los neandertales y la proliferación
aparentemente simultánea de los humanos anatómicamente modernos.
¿Hubo algún tipo de ventaja que dotó a esos primeros humanos
Luz verde para la nueva Ley de Parques Nacionales
El Pleno del Congreso de los Diputados aprobó ayer de manera
definitiva la reforma de la Ley de Parques Nacionales, a pesar del
rechazo de partidos políticos y organizaciones ecologistas. España
Microscopía electrónica en 3D revela un mecanismo de plegamiento de
proteínas
Un estudio, publicado en la revista Nature Communications, demuestra,
gracias a la microscopía electrónica en 3D, que una molécula de la
proteína co-chaperona Hop media la transferencia del sustrato en la
Descubren una pieza común del reloj biológico en plantas y humanos
Un grupo de científicos demostró que los relojes biológicos de las
plantas y de los seres humanos tienen en común una pieza sin la cual no
podrían adaptar sus funciones fisiológicas a lo largo del día y de las
Investigadores brasileños describen el potencial farmacológico de la
tucumã
Investigadores de la Universidad Federal de Santa María y de la
Universidad del Estado del Amazonas (Brasil) han desvelado en un
estudio el gran potencial de una fruta, denominada tucumã, como
Las aguas costeras peruanas, ideales para la recuperación de la tortuga
verde
Investigadores de la Universidad de Puerto Rico, del Instituto del Mar
de Perú y de la Universidad de Antofagasta (Chile) han estudiado dos
áreas costeras peruanas y han comprobado que sus aguas ricas en
Desarrollan un software para la producción hortícola, vitivinícola y de
remolacha azucarera
Neiker-Tecnalia, en coordinación con las empresas consultoras HAZI
Fundazioa (desarrollo rural, litoral y alimentario) e IK Ingeniería
(ecodiseño e innovación ambiental de productos y servicios), ha
El ADN de ratones y humanos difiere en más aspectos de los que se
pensaba
Varios artículos científicos publicados en Nature, PNAS y Science,
entre otras, aportan nueva información sobre el uso del ratón como
animal modelo para el estudio de enfermedades humanas. El Consorcio
Las hembras poliándricas minimizan el riesgo de tener poco éxito
reproductivo
Un estudio, publicado en Proceedings of the Royal Society B y liderado
por el CSIC, confirma la hipótesis de que las hembras intentan
asegurarse de que su progenie tenga las mejores características para su
supervivencia. El trabajo, realizado en condiciones de laboratorio, ha
tomado al erizo de mar (Heliocidaris erythogramma) como animal
Identifican al virus culpable de la extraña y devastadora epidemia que
está exterminando estrellas de mar
El alcance geográfico del virus y el número de especies infectadas
podrían convertirlo en la mayor enfermedad de la vida marina conocida
hasta la fecha. Desde junio de 2013, la mayor mortandad de estrellas
La Promesa de Sídney nace para salvaguardar las áreas protegidas del
planeta
El Congreso Mundial de Parques de 2014 ha concluido hoy en Australia
con el lanzamiento de la Promesa de Sídney. Este documento ofrece
compromisos de varios países –como Rusia, China o Brasil– para
La "astucia" de la Malaria
Entrega del podcast Quilo de Ciencia, realizado por Jorge Laborda
(catedrático de Bioquímica y Biología Molecular de la Universidad de
Castilla-La Mancha, España), en Ciencia para Escuchar, que
Orugas que se hacen pasar por hormigas reina al lograr imitar la “voz”
de estas
Unos científicos han revelado cómo una oruga parásita puede darse una
vida de reina en la colonia hambrienta en la que vive infiltrada: Una
estrategia clave es imitar la “voz” de una hormiga reina, de tal modo
.Biomedicina
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
Identifican un gen asociado al riesgo de sufrir una disección arterial
cervical
Investigadores del Instituto de Investigación Vall d’Hebron han
participado en el mayor estudio genético realizado hasta ahora sobre
la disección arterial cervical, que representa una de las principales
El consumo de manteca de cerdo aumenta la longevidad en ratones
Investigadores de la Universidad de Córdoba han demostrado que, en
dietas bajas en calorías, la manteca de cerdo está relacionada con el
aumento de la longevidad. Se trata del primer estudio que analiza la
El yogur es el único lácteo que reduce el riesgo de diabetes tipo 2
El consumo de yogur, queso y leche se había relacionado con un menor
riesgo de desarrollar diabetes tipo 2. Un nuevo estudio demuestra que
únicamente el yogur permite disminuir la probabilidad de padecer la
Uno de cada cuatro niños de 11 o 12 años padece obesidad o sobrepeso
Un 27% de los niños de 11 o 12 años padece sobrepeso u obesidad,
frente al 73% restante de los escolares que tiene un peso normal. Así se
desprende de un estudio, realizado por la Universidad de La Rioja, que
describe el nivel de salud de los escolares de 6º curso de Educación
Las contracciones uterinas aumentan el éxito en la inseminación
artificial
Es de sobra conocido el impacto negativo de las contracciones en la
fecundación in vitro. Lo que no se sabía hasta ahora era qué efecto tenía
Las proteínas vinculadas al alzhéimer se propagan en el cerebro como
una epidemia
Investigadores del Instituto Neurológico de Montreal, liderados por un
científico cubano, se han inspirado en un modelo de expansión de las
epidemias para explicar cómo se extienden en el cerebro unas proteínas
Descubierto un derivado de la vitamina B3 que previene el cáncer de
hígado en ratones
Investigadores del Centro Nacional de Investigaciones Oncológicas han
descrito cómo suplementos en la dieta de nicotinamida ribósido, un
derivado de la vitamina B3, previenen el desarrollo de tumores de
El sueño es un estado de inconsciencia sincronizado
Un estudio ha puesto de manifiesto los cambios, locales y globales que
suceden en el cerebro cuando una persona cae dormida. Los resultados
se publican en la revista Cerebral Cortex, revelan cambios en la
El 25% de chicos adolescentes ha intentado hacer dieta en el último año
Casi un tercio de los varones adolescentes es inexacto a la hora de
percibir su peso, lo que puede influir en sus patrones alimentarios y,
consecuentemente, en su salud. Así lo indica un estudio liderado por la
Los expertos alertan de un aumento de casos de dengue en México
Entre el 2000 y 2011, el número anual de casos de dengue, una
enfermedad viral transmitida esencialmente por mosquitos como Aedes
aegypti, pasó de 1.714 a 15.424 en México, según un trabajo de
científicos de ese país. La circulación del virus en la última década es
más amplia y la tasa de incidencia han experimentado un importante
aumento.
.Biotecnología
'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
human cell and the complement system. Using nuclear magnetic
resonance spectroscopy and X-ray structure analysis, they were able to
solve the molecular structure of the complex. It is composed o
Cell's skeleton is never still
Computer models show how microtubules age. The models reported by
researchers help explain the dynamic instability seen in microtubules,
essential elements in cells' cytoskeletons.
Selenium compounds boost immune system to fight against cancer
Cancer types such as melanoma, prostate cancer and certain types of
leukemia weaken the body by over-activating the natural immune
system. Researchers have now demonstrated that selenium -- naturally
Enabling biocircuits: New device could make large biological circuits
practical
Researchers have made great progress in recent years in the design and
creation of biological circuits -- systems that, like electronic circuits,
can take a number of different inputs and deliver a particular kind of
How our bodies keep unwelcome visitors out of cell nuclei
The structure of pores found in cell nuclei has been uncovered by a
team of scientists, revealing how they selectively block certain
molecules from entering, protecting genetic material and normal cell
Turtles and dinosaurs: Scientists solve reptile mysteries with landmark
study on the evolution of turtles
A team of scientists has reconstructed a detailed 'tree of life' for turtles.
Next generation sequencing technologies have generated unprecedented
amounts of genetic information for a thrilling new look at turtles'
Primates indispensable for regeneration of tropical forests
Primatologist and plant geneticists have studied the dispersal of tree
seeds by New World primates. Primates can influence seed dispersal
and spatial genetic kinship structure of plants that serve as their food
Brain injuries in mice treated using bone marrow stem cells,
antioxidants
For the first time, researchers have transplanted bone marrow stem cells
into damaged brain tissue while applying lipoic acid (a potent
antioxidant), with the aim of improving neuroregeneration in the tissue.
Crean neuronas receptoras del dolor a partir de células de la piel
Un equipo de investigadores logra, tras más de seis años, transformar
células de la piel en neuronas receptoras del dolor similares a neuronas
adultas.
Inercia positiva que ha salvado resultados
Los centros aguantan el tirón tras años de pérdidas, pero la 'burbuja'
empieza a dar señales de explosión.
"Varios centros sufrirán más a partir de ahora"
Dolores González-Pacanowska, coordinadora del área, deja caer que no
queda margen si siguen los recortes.
Biomedicina que adelgaza pero que aún 'tira' del CSIC
Los centros biosanitarios, como los demás, llevan años perdiendo
fondos y personal; algunos hasta un 20-30%.
From dried cod to tissue sample preservation
Could human tissue samples be dried for storage, instead of being
frozen? Researchers are looking at the salt cod industry for a potential
tissue sample drying technology that could save money without
By introduce DNA from other organisms, scientists enhance production
of compounds in fungus
The enzymes and compounds produced by fungi are of great interest to
the pharmaceutical, textile, paper and food industries. These organisms
are capable of secreting, their nutritional needs are low and have high
Life's extremists may be an untapped source of antibacterial drugs
Life's extremists, a family of microbes called Archaea, may be an
untapped source of new antibacterial drugs. That conclusion arises from
the discovery of the first antibacterial gene in this ancient lineage.
Cohesin: Cherry-shaped molecule safeguards cell division
A cohesin molecule ensures the proper distribution of DNA during cell
division. Scientists can now demonstrate the concept of its carabiner-
like function by visualizing for the first time the open form of the
Novel regulatory mechanism for cell division found
A protein kinase or enzyme known as PKM2 has proven to control cell
division, potentially providing a molecular basis for tumor diagnosis
and treatment, researchers report. Understanding how cytokinesis goes
Key protein decrypted: Scientists develop 3-D model of regulator
protein bax
A new 3-D model of the protein Bax, a key regulator of cell death, has
been developed and released by researchers. When active, Bax forms
pores in the membranes of mitochondria, causing the release of proteins
Why some people may be immune to HIV-1: Clues
Doctors have long been mystified as to why HIV-1 rapidly sickens
some individuals, while in others the virus has difficulties gaining a
foothold. Now, a study of genetic variation in HIV-1 and in the cells it
Development of digits and genitals: Formation of these embryonic
structures involves action of very similar group of genes
During the development of mammals, the growth and organization of
digits are orchestrated by Hox genes, which are activated very early in
precise regions of the embryo. These 'architect genes' are themselves
Sweet bacterium keeps track of time
Researchers are studying the Caulobacter crescentus bacterium because
of its developmental process and cellular cycle, which serve as models
for a number of pathogenic bacteria. They all have in common the use
Ferret genome sequenced, holds clues to respiratory diseases
The draft sequence of the ferret genome provides genetic information
important to the study of respiratory disorders. Scientists are now able
to examine the network of the animal's genes activated in response to
Unwinding the mysteries of the cellular clock
Underlying circadian rhythms is a clock built of transcription factors
that control the oscillation of genes, serving as the wheels and springs of
the clock. But, how does a single clock keep time in multiple phases at
Flu virus key machine: First complete view of structure revealed
Scientists looking to understand – and potentially thwart – the influenza
virus now have a much more encompassing view, thanks to the first
complete structure of one of the flu virus’ key machines. Knowing the
New view of mouse genome finds many similarities, striking
differences with human genome
Looking across the genomes of humans and mice, scientists have found
that, in general, the systems that are used to control gene activity in both
species have many similarities, along with crucial differences. The
Humans and mice: Similar enough for studying disease and different
enough to give us new clues about evolution
Scientists have completed an exhaustive description of the mouse's
functional genome elements and their comparison with the human
genome. Comparing humans and mice enables us to better understand
Biochemists build largest synthetic molecular 'cage' ever
Biochemists have created the largest protein ever that self-assembles
into a molecular cage. Their designed protein, which does not exist in
nature, is hundreds of times smaller than a human cell. The research
Ancient genetic program employed in more than just fins and limbs:
Hox genes provide blueprint for a diversity of body plan features
Researchers have found that the Hox gene program, responsible for
directing the development of fins and limbs, is also utilized to develop
other body part features of vertebrates, such as barbels and vents in fish.
Describen al detalle el genoma del ratón para ayudar al estudio de
enfermedades
La comparativa entre humanos y ratones ofrece una mejor comprensión
de la evolución, así como sobre el uso de ratones para el estudio de
enfermedades humanas.
Microscopía electrónica en 3D para revelar un mecanismo de
plegamiento de proteínas
Una investigación llevada a cabo en el Centro Nacional de
Biotecnología del CSIC (CNB) ha contribuido a determinar en términos
estructurales el mecanismo por el que la proteína Hop media en el
correcto plegamiento del receptor de una hormona mediante la
interacción de forma sucesiva con las chaperonas Hsp70 y Hsp90. Bajo
la dirección del científico del CNB José María Valpuesta, los
.Neurociencia
Protein Elevated in Blood Predicts Post-Concussion Symptom Severity
in Professional Athletes
Elevated levels in the blood of the brain-enriched protein calpain-
cleaved ±II-spectrin N-terminal fragment, known as SNTF, shortly after
sports-related concussion can predict the severity of post-concussion
Mere expectation of treatment can improve brain activity in Parkinson's
patients
Learning-related brain activity in Parkinson's patients improves as much
in response to a placebo treatment as to real medication, according to a
new study. "The findings highlight the power of expectations to drive
Pain and itch in a dish: Scientists convert human skin cells into sensory
neurons
Scientists have found a simple method to convert human skin cells into
the specialized neurons that detect pain, itch, touch and other bodily
sensations. These neurons are also affected by spinal cord injury and
Missing gene linked to autism
Researchers have shed light on a gene mutation linked to autistic traits.
The team already knew that some people with autism were deficient in a
gene called neurexin-II. To investigate whether the gene was associated
Alzheimer's in a dish model converts skin cells to induced neurons
expressing amyloid-beta and tau
The search for a living laboratory model of Alzheimer’s disease (AD)
— the so-called “Alzheimer’s in a dish” —has a new candidate.
Researchers report success in creating induced neurons that model
Asymptomatic atherosclerosis linked to cognitive impairment
In a study of nearly 2,000 adults, researchers found that a buildup of
plaque in the body's major arteries was associated with mild cognitive
impairment. Atherosclerosis is a condition in which fat, cholesterol and
Gene discovered that reduces risk of stroke
A gene that protects people against one of the major causes of stroke in
young and middle-aged adults has been discovered, and researchers say
that it could hold the key to new treatments.
Diseases caused by immune system fault: New insight
Scientists have discovered how a gene mutation can lead to diseases that
occur when the immune system attacks the body by mistake.
Understanding how these mechanisms work could help scientists to
Brain receptor cell could be new target for Alzheimer's
Blocking a key receptor in brain cells that is used by oxygen free
radicals could play a major role in neutralizing the biological
consequences of Alzheimer’s disease, according to researchers.
New tools in fight against virus that attacks the brain
Researchers have developed new insight into a rare but deadly brain
infection, called progressive multifocal leukoencephalopathy. This
disease -- which is caused by the JC virus -- is most frequently found in
How does the brain react to virtual reality? Completely different pattern
of activity in brain
Neurophysicists studying a key brain region where Alzheimer's disease
begins have discovered how the brain processes virtual reality. 'The
pattern of activity in a brain region involved in spatial learning in the
Pain in a dish: Researchers turn skin cells into pain sensing neurons
After more than six years of intensive effort, and repeated failures that
made the quest at times seem futile, researchers have successfully
converted mouse and human skin cells into pain sensing neurons that
Football players found to have brain damage from mild 'unreported'
concussions
There wasn't a diagnostic capability to identify mild brain injury early
after the trauma until recently. In the NFL, other professional sports and
especially school sports, concern has grown about the long-term
Protein that rouses brain from sleep may be target for Alzheimer's
prevention
A protein that stimulates the brain to awaken from sleep may be a target
for preventing Alzheimer's disease, a study suggests. The new research,
in mice, demonstrates that eliminating that protein -- called orexin --
Neurodegenerative diseases: Has a possible new lead been found?
Good communication between brain cells is vital for optimal (mental)
health. Mutations in the TBC1D24 gene inhibit this process, thereby
causing neurodegeneration and epilepsy. Fruit flies with a defect in
Schizophrenia may be triggered by excess protein during brain
development
A gene associated with schizophrenia plays a role in brain development
and may help to explain the biological process of the disease, according
to new research. Researchers saytoo much protein expressed by the
Motor coordination issues in autism are caused by abnormal neural
connections
Abnormal connections between neurons are the likely cause of motor
coordination issues seen in autism spectrum disorder. Using a mouse
model of autism, scientists identified a malfunctioning neural circuit
With rewards, we remember more than we should
Perhaps to prevent confusion between facts, we've made a point of
learning and closely related facts we haven't, the brain employs
'retrieval-induced forgetting.' In a new experiment, brain scientists show
Simple clinical tests help differentiate Parkinson's disease from atypical
parkinsonism
Two simple tests conducted during the neurological exam can help
clinicians differentiate between early-stage Parkinson’s disease (PD)
and atypical parkinsonism. By asking patients to perform a tandem gait
Tapeworm found living inside a patient's brain: Worm removed and
sequenced
A genome of a rare species of tapeworm found living inside a patient's
brain has been sequenced for the first time. The study provides insights
into potential drug targets within the genome for future treatments.
Don't get hacked! Research shows how much we ignore online warnings
New research finds that people say they care about online security but
behave like they don't -- such as ignoring security warnings. To better
understand how people deal with security messages, researchers
Long-term overtreatment with anti-clotting/antiplatelet drug combo may
raise risk of dementia
Long-term overtreatment with the anti-clotting drug warfarin combined
with antiplatelet therapy to prevent stroke may raise the risk of dementia
in people with atrial fibrillation, researchers report. Atrial fibrillation is
Repetitive transcranial magnetic stimulation studied for stroke rehab
Researchers are trying to help patients who have suffered a stroke to
improve arm movement by stimulating the brain using a device called a
Transcranial Magnetic Stimulator (TMS). The idea is that when one
Brain injuries in mice treated using bone marrow stem cells,
antioxidants
For the first time, researchers have transplanted bone marrow stem cells
into damaged brain tissue while applying lipoic acid (a potent
antioxidant), with the aim of improving neuroregeneration in the tissue.
Novel robotic walker helps patients regain natural gait and increases
productivity of physiotherapists
Survivors of stroke or other neurological conditions such as spinal cord
injuries, traumatic brain injuries and Parkinson’s disease often struggle
with mobility. To regain their motor functions, these patients are
Mental disorders due to permanent stress?
Activated through permanent stress, immune cells will have a damaging
effect on and cause changes to the brain. This may result in mental
disorders. Medical researchers are studying the effects of permanent
Epidemic spreading and neurodegenerative progression
Researchers have used a model inspired by patterns of epidemic disease
spreading to map how misfolded proteins propagate within the brain.
Pac-man instead of patch: Using video games to improve lazy eye,
depth perception
Scientists have created video games that add an important element of
fun to the repetitive training needed to improve vision in people –
including adults – with a lazy eye and poor depth perception.
Spatial memory: Orientation study suggests that a visual image of the
intermediate spatial environment exists in brain
When walking through the city, observers perceive and register
characteristic points of orientation or divergent paths in the area from
their current point of view. The brain uses this data to construct and
Computerized cognitive training has modest benefits for cognitively
healthy older adults
Computerized cognitive training (CCT) has been widely promoted for
older adults, but its effectiveness for cognitively health older adults has
been unclear in systematic reviews to date. In a new systematic review
Potential therapy found for incurable pediatric brain tumor
Scientists have discovered a new potential drug therapy for a rare,
incurable pediatric brain tumor by targeting a genetic mutation found in
children with the cancer. By inhibiting the tumor-forming consequences
Rapid response for inflammation control in songbirds' brains could lead
to therapies in humans
A biological process in the brains of zebra finches shows that the
songbirds respond quickly to trauma and are capable of controlling the
natural inflammation that occurs to protect the brain from injury.
New insights link fragile X syndrome, autism spectrum disorders
Fragile X syndrome (FXS) is the most common cause of inherited
intellectual disability (ID), as well as the most frequent monogenic
cause of autism spectrum disorders (ASD). FXS is caused by the
Behavioral flexibility impaired after exposure to oxycodone
Brief usage of the painkiller oxycodone may impair behavioral
flexibility even after that use ends, suggesting impaired decision-
making as an enduring consequence of exposure, according to a study.
Imagination, reality flow in opposite directions in the brain
As real as that daydream may seem, its path through your brain runs
opposite reality. Aiming to discern discrete neural circuits, researchers
have tracked electrical activity in the brains of people who alternately
Brain training using sounds can help aging brain ignore distractions
As we age, we have an increasingly harder time ignoring distractions.
But new research reveals that by learning to make discriminations of a
sound amidst progressively more disruptive distractions, we can
Reprogramming 'support cells' into neurons could repair injured adult
brains
The cerebral cortex lacks the ability to replace neurons that die as a
result of Alzheimer's, stroke, and other devastating diseases. A new
study shows that a Sox2 protein, alone or in combination with another
Weight, eating habits in Parkinson's disease
A review of the scientific literature on Parkinson’s disease shows that
even the non-motor symptoms associated with the disease can
contribute to the changes in body weight seen in patients (including
New approach for treating ALS: Re-evaluation of older drugs?
Blocking molecules involved in ALS-drug resistance may improve how
well ALS therapeutics work, suggesting that re-evaluation of drugs that
appeared to have failed might be appropriate.
From architect to social worker: Complex jobs may protect memory and
thinking later in life
People whose jobs require more complex work with other people, such
as social workers and lawyers, or with data, like architects or graphic
designers, may end up having longer-lasting memory and thinking
Study offers new clue into how anesthesia works
The activity of ion channel proteins that are important for cell-to-cell
communication is markedly reduced during anesthesia, according to
researchers, helping to explain how anesthesia works.
Molecular time signalling controls stem cells during brain's
development
Researchers have succeeded in explaining how stem cells in the brain
change to allow one type of stem cell to produce different cell types at
different stages. A study shows that the signal molecule TGF-beta acts
as a time signal that regulates the nerve stem cells' potential at different
stages of the brain's development – knowledge that may be significant
Humans' big brains might be due in part to newly identified protein
A protein that may partly explain why human brains are larger than
those of other animals has been identified by scientists from two stem-
cell labs. Key experiments revealed that the protein, called PDGFD, is
Improving memory by suppressing a molecule that links aging to
Alzheimer's disease
Researchers find a way to improve memory by suppressing a molecule
that links aging to Alzheimer’s disease.
Many older brains have plasticity, but in a different place
Brain scientists have long believed that older people have less of the
neural flexibility, or plasticity, required to learn new things. A new
study shows that older people learned a visual task just as well as
Scientists prevent memory problems caused by sleep deprivation
Scientists have found that a particular set of cells in a small region of
the brain are responsible for memory problems after sleep loss. By
selectively increasing levels of a signaling molecule in these cells, the
.Células madre y Epigenética
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
Muscle relaxant may be viable treatment for rare form of diabetes
A commonly prescribed muscle relaxant may be an effective treatment
for a rare but devastating form of diabetes, researchers report. The drug,
dantrolene, prevents the destruction of insulin-producing beta cells in
Pain in a dish: Researchers turn skin cells into pain sensing neurons
After more than six years of intensive effort, and repeated failures that
made the quest at times seem futile, researchers have successfully
converted mouse and human skin cells into pain sensing neurons that
Remotely controlled magnetic nanoparticles stimulate stem cells to
regenerate bones
Researchers in bone tissue regeneration believe they have made a
significant breakthrough for sufferers of bone trauma, disease or defects
such as osteoporosis.
Nail stem cells prove more versatile than press-ons
There are plenty of body parts that don't grow back when you lose them.
Nails are an exception, and a new study reveals some of the reasons
why. A team of researchers has identified a new population of nail stem
Brain injuries in mice treated using bone marrow stem cells,
antioxidants
For the first time, researchers have transplanted bone marrow stem cells
into damaged brain tissue while applying lipoic acid (a potent
antioxidant), with the aim of improving neuroregeneration in the tissue.
Anti-leukemia drug may also work against ovarian cancer
An antibody therapy already in clinical trials to treat chronic
lymphocytic leukemia may also prove effective against ovarian cancer –
and likely other cancers as well, report researchers.
Pluripotent cells created by nuclear transfer can prompt immune
reaction, researchers find
Mouse cells and tissues created through nuclear transfer can be rejected
by the body because of a previously unknown immune response to the
cell's mitochondria, according to a study in mice.
Cellular origin of fibrosis found
The cellular origin of the tissue scarring caused by organ damage
associated with diabetes, lung disease, high blood pressure, kidney
disease, and other conditions has been found by researchers. The
Signaling molecule crucial to stem cell reprogramming
While investigating a rare genetic disorder, researchers have discovered
that a ubiquitous signaling molecule is crucial to cellular
reprogramming, a finding with significant implications for stem cell-
Reprogramming 'support cells' into neurons could repair injured adult
brains
The cerebral cortex lacks the ability to replace neurons that die as a
result of Alzheimer's, stroke, and other devastating diseases. A new
study shows that a Sox2 protein, alone or in combination with another
Tumor suppressor also inhibits key property of stem cells, researchers
say
A protein that plays a critical role in preventing the development of
many types of human cancers has been shown also to inhibit a vital
stem cell property called pluripotency, according to a study.
Molecular time signalling controls stem cells during brain's
development
Researchers have succeeded in explaining how stem cells in the brain
change to allow one type of stem cell to produce different cell types at
different stages. A study shows that the signal molecule TGF-beta acts
Humans' big brains might be due in part to newly identified protein
A protein that may partly explain why human brains are larger than
those of other animals has been identified by scientists from two stem-
cell labs. Key experiments revealed that the protein, called PDGFD, is
Delivery of stem cells into heart muscle after heart attack may enhance
cardiac repair and reverse injury
Delivering stem cell factor directly into damaged heart muscle after a
heart attack may help repair and regenerate injured tissue. A novel SCF
gene transfer delivery system induced the recruitment and expansion of
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Universidad de Salamanca. Campus Miguel de Unamuno
c/Donantes de Sangre s/n 37007 Salamanca
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