Much of our knowledge of leptin comes from the study of two brands of lab mouse: the ob / ob mouse, deficient
in genes responsible for leptin production; and the db / db mouse, deficient in the leptin receptor gene.
The condition is caused by mutations
in the genes responsible for muscle structure and functions.
The men most likely to benefit could be identified by genetic testing to look for mutations
in genes responsible for DNA repair — including the BRCA genes and the gene ATM.
The most common, found in nearly two - thirds of the samples, were abnormalities
in genes responsible for the androgen receptor — a cell structure that sends growth signals in response to the male hormone androgen.
The article also points out that the epitranscriptome could be altered in some human diseases, while alterations
in genes responsible for cancer are also being discovered.
Researchers from several institutions, including, UCLA, Boston University, Stanford University and the Institute for Aging Research at Hebrew SeniorLife, analyzed blood samples from nearly 10,000 people to find that genetic markers
in the gene responsible for keeping telomeres (tips of chromosomes) youthfully longer, did not translate into a younger biologic age as measured by changes in proteins coating the DNA.
If the silencing occurred
in a gene responsible for suppressing tumor formation, the result would appear the same as genetic mutations that predispose people to cancer.
It was
in the gene responsible for the 2A receptor that the researchers found the only marker significantly associated with response to the drug.
However, they were able to determine that there were significant differences
in the gene responsible for that enzyme between dogs and wolves.
Not exact matches
The treatment (which involves injecting people with modified viruses carrying the CRISPR technology that will go
in and repair the faulty DNA) can be injected directly into the retina and,
in this case, used to delete the portion of the CEP290
gene that's
responsible for the disease.
Patients that have a defective
gene called RPE65 — which is
responsible for producing a protein that makes light receptors
in the eye — suffer from leber congenital amaurosis and retinitis pigmentosa, yet now have hope.
Scientists have figured out the specific
gene mutation
responsible for red hair — and why it's more common
in beards than on heads.
The ability to locate the individual
gene or
gene sequence
responsible for each disease could revolutionize biomedicine
in the 21st century.
Actually, science is continually showing us that while no one
gene is defined as being
responsible for a man or woman being attracted to their own gender, the complex reasoning behind it, much like many other parts of being a human being, is
in fact based
in genetics,
in the physical.
Los Baños, Philippines — The version of the
gene primarily
responsible for the aroma
in Thai Jasmine rice is found...
Researchers have discovered that the
gene responsible for producing capsaicin, the chemical that makes chile peppers hot, appears
in tomatoes...
She is identifying the enzymes
in these natural products to find the
genes responsible so that they can be introduced into other plants.
When similar analysis was performed on the db mice, it was found that the disrupted db
gene was
responsible for encoding a protein that functions as a leptin receptor: When it binds circulating leptin at the cell surface, it sets
in motion a biochemical cascade inside the cell.
The
genes responsible for making psilocybin appear to have been exchanged
in an environment with a lot of fungus - eating insects, namely animal manure.
The
genes responsible for these proteins undergo frequent point mutations, resulting
in genetic «drift»; moreover, the
genes from different animal and human strains may also interchange, resulting
in genetic «shift.»
Researchers pin down two
genes that may be
responsible for abnormal neural development
in Down's mice embryos.
A new meta - analysis suggests that low expression levels of 10 related
gene sets
responsible for mitochondrial machinery play an important role
in this disorder — all previously unlinked to Parkinson's.
According to studies, approximately one out of every 40 individuals
in the United States is a carrier of the
gene responsible for spinal muscular atrophy (SMA), a neurodegenerative disease that causes muscles to weaken over time.
Although a team led by Mahajan identified the
gene responsible for the disease
in 2012, a cure has yet to be developed.
Patrick Forterre of the University of Paris - Sud has also analyzed enzymes
responsible for DNA replication and has concluded that the
genes for such enzymes
in eukaryotes probably have a viral origin.
Yet,
in this plant (as well as
in certain conifers), the researchers found
genes similar to those
responsible for the formation of flowers, and which are organized according to the same hierarchy (with the activation of one
gene activating the next
gene, and so on)!
This,
in turn, offers tremendous insight into the
genes responsible for producing different morphological forms (or phenotypes).
Ian Baldwin of the Max Planck Institute for Chemical Ecology
in Jena, Germany, and colleagues genetically modified petunia plants to silence
genes responsible for producing specific scent molecules.
Next, Anderson and his colleagues used a set of genetic tools to identify exactly which neurons were
responsible for the effect on aggression and to see if the
gene that encodes for Tk also controls aggressive behavior by acting
in that cell.
Almost immediately such familial genome sequencing proved its value, uncovering mutations
responsible for diseases caused by defects
in a single
gene.
The researchers caution that this study is only a starting point
in the long process of finding the
gene or
genes directly
responsible for longevity because the implicated area of chromosome 4 may hold as many as 500
genes.
«We believe these master
genes are
responsible for traumatic brain injury adversely triggering changes
in many other
genes,» said Xia Yang, a senior author of the study and a UCLA associate professor of integrative biology and physiology.
According to recent studies, approximately one out of every 40 individuals
in the United States is a carrier of the
gene responsible for spinal muscular atrophy (SMA), a neurodegenerative disease that causes muscles to weaken over time.
We found that the
gene in nitrate - utilizing soil bacteria,
responsible for the destruction of nitrous oxide, can be regulated when copper is added.
They found that the strain had acquired the
gene for phospholipase A2, called SlaA,
in the mid-1980s, which suggested that SlaA was
responsible for the jump
in virulence.
The researchers succeeded
in identifying the enzyme and
gene responsible for the formation of a precursor of TA - G biosynthesis, and so were able to engineer plants with lower TA - G.
Scientists have discovered the first example of a
gene solely
responsible for an autoimmune disease, a type of disorder
in which the immune system attacks the body.
A new report by researchers
in the Perelman School of Medicine at the University of Pennsylvania found that loss - of - function mutations to Filaggrin - 2 (FLG2), a
gene that creates a protein
responsible for retaining moisture and protecting the skin from environmental irritants, were associated with atopic dermatitis
in African American children.
Transcription factors are
responsible for either inhibiting or promoting the expression of
genes, and master regulatory transcription factors are like transcription factors on steroids: their actions regulate thousands of
genes in different kinds of cells.
As reported
in the title story of Nature Neuroscience's May issue, an international team has now progressed significantly
in understanding
gene defects
responsible for ALS.
The same
gene network also plays a role
in programming the fly neurons
responsible for taste, the researchers report
in the journal PLOS Genetics.
Doyle is now tackling a far bigger network of
genes in E. coli: the master network
responsible for governing its metabolism.
Korenberg was convinced that with Mills» approach of directly measuring the brain's electrical firing they could solve the puzzle of precisely which
genes were
responsible for building the brain wiring underlying the different reaction to human faces
in Williams syndrome.
The results, reported
in the July 19 Science, reveal a small cluster of E. lenta
genes responsible for nixing digoxin.
«Mutations
responsible for cleft palate and related birth defects identified: Study of Amish and Saudi Arabian families finds mutations
in HYAL2
gene that impact development.»
Steve: And there's one of the researchers you quote
in the article talks about, there may be
genes that are not directly
responsible for some aspect of brain function even at a biochemical cascade level; there might be a
gene that is
responsible for the width of the birth canal and that that could be associated with ultimately with intelligence.
Genetics plays a role
in athletic performance, but pinpointing which of our
genes are
responsible is tricky.
In these animals, they switched off the
gene responsible for producing the enzyme arylsulfatase G.
But the genetic factors underpinning seed coat permeability remained a mystery until Ma and his team used a map - based cloning approach to hone
in on GmHs1 - 1 as the
gene responsible for hard seededness.
The disorder runs
in families, but the
gene responsible had eluded scientists.