Believe it or not, by monitoring the number of eggs laid, scientists are able to better understand how
our genes affect brain function.
The focus of Dr. Smoller's research interests has been 1) understanding the genetic and environmental determinants of psychiatric disorders across the lifespan; 2) integrating genomics and neuroscience to unravel how
genes affect brain structure and function; and 3) using «big data», including electronic health records and genomics, to advance precision medicine.
With further research into how
these genes affect the brain, it could become possible to understand how genes linked to schizophrenia affect people's cognitive function,» said McIntosh.
Not exact matches
Neuroscientists have over the past decade uncovered evidence, both in rodent and human studies, that parental caregiving, especially in moments of stress,
affects children's development not only on the level of hormones and
brain chemicals, but even more deeply, on the level of
gene expression.
Strangely enough, former lovers somehow make an imprint on the
brain and possibly
affect genes, especially if there was past fluid exchange.
But over the past decade, researchers have identified hundreds of
gene variations that seem to
affect brain development in ways that increase the risk of autism.
Because this imprinting
affects hundreds of
genes that are non-coding, including microRNAs and non-coding RNAs, it's a very interesting fine - tuning mechanism for the dosage of
gene expression in the
brain and elsewhere in the body.»
Examples of
gene networks in the hippocampus
affected by
brain trauma.
The study, which is published in the journal Molecular Psychiatry, describes a possible mechanism for how the
gene variant produces clinical symptoms by
affecting levels of specific proteins in the
brain.
More and more, researchers are finding that an extra bit of a vitamin, a brief exposure to a toxin, even an added dose of mothering can tweak the epigenome — and thereby alter the software of our
genes — in ways that
affect an individual's body and
brain for life.
Yang said the study not only indicated which
genes are
affected by traumatic
brain injury and linked to serious disease, but also might point to the
genes that govern metabolism, cell communication and inflammation — which might make them the best targets for new treatments for
brain disorders.
The newly identified
gene affects accumulation of amyloid - beta, a protein believed to be one of the main causes of the damage that underpins this
brain disease in humans.
The loss of a single
gene in mice can
affect social behavior and impair their
brains» ability to filter out distractions — both characteristics of several neurological diseases in humans.
Prof. Reiner had identified this
gene — LIS1 — back in 1993, and has continued to investigate its role in the developing
brain and in the disease, which
affects one in 30,000 births.
In future experiments, Lahn will insert the human ASPM
gene into mice to see what
affect it has on
brain development.
Previous studies have looked mainly at
genes causing atherosclerosis and
genes affecting the function of platelets and clotting processes as risk factors for ischemic stroke (clot obstructing blood flow to the
brain).
The findings highlight specific sets of
genes and the
brain cells they
affect as being involved in regulating anxiety.
This epigenetic alteration of
gene activity in
brain cells that receive this neurotransmitter showed for the first time that dopamine deficiencies can
affect a variety of behavioral and physiological functions regulated in the prefrontal cortex.
The researchers investigated 16 groups of female and male mice offspring exposed to maternal diet - induced obesity and male hormone excess and studied how these environmental factors
affected the mice's behaviour as well as
gene expression in the
brain.
The environmental factors also
affected gene expression in the
brain.
The tiny addition of a chemical mark atop a
gene that is well known for its involvement in clinical depression and posttraumatic stress disorder can
affect the way a person's
brain responds to threats, according to a new study by Duke University researchers.
«Single
gene variation linked to obesity: Variation in the BDNF
gene may
affect brain's regulation of appetite, study suggests.»
They then exposed the mice to light and studied how it
affected genes within the
brain.
«It also
affected the expression of certain
genes in the
brain that are involved in «neuroplasticity», which may be associated with memory impairment,» says Morris.
Gene variants that
affect the way our
brain works may be the reason, according to a new study.
If chemogenetics turns out to have harmful effects, the
affected brain area could still be surgically removed, Kullmann, because the virus used to deliver the
gene only spreads a few millimetres.
Ours is the first study describing how
brain genes affect food intake and dietary preferences in a group of healthy people.»
Using novel technologies developed at HMS, the team looked at how a single sensory experience
affects gene expression in the
brain by analyzing more than 114,000 individual cells in the mouse visual cortex before and after exposure to light.
«Experience and environmental stimuli appear to almost constantly
affect gene expression and function throughout the
brain.
Howard Hughes Medical Institute (HHMI) scientists have profiled key features of the genetic material inside three types of
brain cells and found vast differences in the patterns of chemical modifications that
affect how the
genes in each type of neuron are regulated.
Second,
affected genes may disturb fundamental pathways in the body and lead to chronic inflammation across the
brain, immune system, and digestive system.
«We hope that in the future, by fully understanding how this
gene affects signaling in the
brain, we may be able to identify drugs to restore the normal signaling balance in neurons and improve cognitive and social function in patients,» says lead author Dr. M. Chiara Manzini.
And in January 2009 another Nature Genetics paper found an association between high body mass index and a 45,000 base - pair deletion in a
gene called NEGR1, which
affects neuronal growth in the hypothalamus, a
brain region that regulates hunger and metabolism.
The researchers assessed how the mothers» nutrition
affected epigenetic changes (or DNA methylation) of IGF2, a
gene involved in fetal development and the
brain development of areas implicated in ADHD — the cerebellum and hippocampus.
«What we are trying to do is identify the function of
genes and how they
affect the way the individuals process information and the structure of the
brain.
By performing DNA sequencing of more than 4,000 families
affected by neurological problems, the two research teams independently discovered that a disease marked by reduced
brain size and sensory and motor defects is caused by a mutation in a
gene called CLP1, which is known to regulate tRNA metabolism in cells.
The findings also suggest that identifying the
brain circuits
affected by mutated
genes linked to psychiatric disease could help scientists develop more personalized treatments for patients in the future, Feng says.
Although Khaitovich thinks that the Neandertal
genes affect the composition of fat throughout the body, the researchers focused on
brain tissue first because it contains so many fatty acids — and was available from a
brain tissue bank.
The researchers also determined that many of the 18 newly identified autism
genes affect the operation of a small subset of biological pathways in the
brain.
A region of the
gene that produces the PACAP38 protein has held nearly constant, even in humans, presumably because the protein plays diverse roles in neuron communication and is essential for normal development of the cerebellum,
affecting brain cell migration, for example.
«But
genes tied to autism tend to
affect specific functions, such as the connections between
brain regions that are essential to many human - specific behaviors, like speech and language.»
An improved understanding of the biological background of musical aptitude can contribute new insights into, for instance,
genes that
affect normal
brain functions, the interactions between
genes and the environment and the significance of music as a form of therapy.
And included among the
genes that follow this pattern is one that critically
affects brain development and maternal care behavior.
They found that the associated regions contained numerous candidate
genes, among them
genes known to
affect ear function, language development, memory, bird song and the
brain's reward mechanism.
At the time, it was thought that this
gene fusion was limited to a fraction of
brain tumors,
affecting about 300 patients in the U.S. per year.
In the course of this work, he has pioneered several new approaches in the fruit fly that have had important implications for mammalian neurobiology, including: the demonstration that the fruit fly has a sleep - like behavior similar to that of mammals, studies of physiological and behavioral consequences of mutations in a neurotransmitter system
affecting one of the
brain's principal chemical signals, studies making highly localized genetic alterations in the nervous system to alter behavior, and molecular identification of
genes causing naturally occurring variation in behavior.
Dr. Coyle's Laboratory for Psychiatric and Molecular Neuroscience takes advantage of insights into recently identified
genes that confer risk for schizophrenia and related disorders and translates them into genetic mouse models to determine how these mutations
affect brain changes as well as function, neurochemistry, and behavior.
The study also demonstrates an association between NCAN variations with volumes of certain
brain regions in young adults and infants, suggesting that the
gene is able to
affect brain structure and function.
«If you want to discover
genes that
affect the
brain, the only way we know how to do that is by analyzing tens of thousands of
brain scans and their corresponding genetic data.
Researchers studying worms have discovered new information on a
gene that is involved in the development of Joubert syndrome, a genetic disorder that
affects the
brain stem.