But
new genetic studies of ancient DNA from Neandertals have found that they and the last ancestor they shared with humans, about 600,000 years ago, also lacked much genetic variation, which would require at least three dramatic bottlenecks — an improbable scenario.
But
a new genetic study of a 1000 - year - old skeleton from the Bahamas shows that at least one modern Caribbean population is related to the region's precontact indigenous people, offering direct molecular evidence against the idea of Taino «extinction.»
Now,
a new genetic study of moa fossils points to humankind as the sole perpetrator of the birds» extinction.
Not exact matches
The attorney general's investigation was apparently spurred by a 2013 article in the
New York Times that cited a University
of Guelph
study that used
genetic analysis to examine various commercial herbal remedies.
(Reuters)- Alnylam Pharmaceuticals Inc's RNAi - based drug that targets a rare
genetic disease met the main goal
of a key
study, in a breakthrough for the
new class
of medicines that works by blocking disease - causing proteins.
But it has been disappointing in that the kind
of genetic variation it detects has turned out to explain surprisingly little
of the
genetic links to most diseases... One issue
of debate among researchers is whether, despite the prospect
of diminishing returns, to continue with the genomewide
studies, which cost many millions
of dollars apiece, or switch to a
new approach like decoding the entire genomes
of individual patients.The unexpected impasse also affects companies that offer personal genomic information and that had assumed they could inform customers
of their
genetic risk for common diseases, based on researchers» discoveries...
For example, François's
new right - wing colleague, Godefroy Lempereur, introduces him to a nativist literature heavy on demographic
studies purporting to show that «belief in a transcendent being conveys a
genetic advantage: that couples who follow one
of the three religions
of the Book and maintain patriarchal values have more children than atheists or agnostics.
These
genetic regulators may be the reason ho - mose - xuality persists in nature despite the fact that gay people are less likely to reproduce, suggests the
new study published in the (Dec, 2012) journal ** The Quarterly Review
of Biology **.
A degree
of kinship between human beings and the rest
of physical creation has always been clear to an extent, but the depth and detail
of our interrelationship with the rest
of life on the planet is being confirmed over and over again in breathtaking detail by
new scientific advances such as
genetic studies and molecular biology.
These
genetic regulators may be the reason homosexuality persists in nature despite the fact that gay people are less likely to reproduce, suggests the
new study published in the [Dec, 2012] journal The Quarterly Review
of Biology.
Blood pressure responses to high and low salt intakes may share similar
genetic control mechanisms, according to a
new study published in the Journal
of Human Hypertension.
And when compared to the
genetic contributions
of the mother, older fathers are responsible for nearly all
of a child's random
genetic mutations: a father's age at conception may account for 97 %
of the
new, or de novo, mutations found in his offspring, according to the
new study led by Augustine Kong at deCODE Genetics in Iceland.
In contrast, the
new study made use
of wrist accelerometer data, which is more objective and quantifiable, and a large
genetic dataset from about 85,000 UK Biobank participants aged 40 to 70.
I continued working at the interface
of science and epidemiology, first with Genaissance Pharmaceuticals, a
New Haven - based pharmacogenomics company, where I was involved in the fascinating
study of human
genetic variation and population genetics.
The field had a rocky start after companies overhyped its potential, but with advances in
genetic sequencing, and a slew
of new studies, the concept is in for a reboot.
Several
new studies highlight the complexity
of autism's
genetic roots, revealing why it strikes boys more than girls and offering clues for possible
new treatments
In conclusion, this
new study identifies the cellular origin
of Pik3ca - induced tumours and reveals that oncogenic Pik3ca activates a multipotent
genetic program, setting the stage for future intratumoural heterogeneity at the earliest stage
of tumor development.
The
new framework enhances the ability to detect
genetic associations and interactions by taking advantage
of data from other genomic
studies of the same population.
Yet, in this latest, large - scale
study, tens
of new genetic risk factors were discovered.
Genetic evidence
of that mixing was found in a
new study.
Despite this, the extensive breadth
of the
new study allowed the researchers to identify several
genetic markers underlying the fruit size increases, which is great news for breeders who might want to further increase the apple's girth.
The
study of the
new strain's
genetic structure might also lead researchers to a better understanding
of how the microbe adapts itself to human hosts.
«The implications for mouse experiments are profound, and could help us cut through some persistent sources
of confusion,» in
genetic research, said Dr. Thaddeus Stappenbeck, an immunologist at Washington University School
of Medicine in St. Louis and a co-author
of the
new study.
«Large - scale
genetic study provides
new insight into the causes
of migraine.»
David Anthony, an anthropologist at Hartwick College, who co-authored several
of the earlier
genetic studies but was not involved in the latest work, calls the
new findings very convincing.
In a second
study, (abstract 2.348) researchers from
New York University's Langone Medical Center find that
genetic mutations altering the transmission
of electrical impulses in the heart and brain may raise the risk
of SUDEP in people.
This
study highlights the shared
genetic etiology
of many canine and human
genetic disorders, and provides
new tools to investigate PRA mechanisms while the beloved dogs benefit from
genetic testing.
In this
new study published in Nature, Alexandra Van Keymeulen and colleagues used state
of the art
genetic mouse models to identify the cellular origin
of PIK3CA and p53 induced breast tumors.
In the second
study, Dr. McCoy and colleagues demonstrated the application
of this
new method to examine the association between symptom dimensions and common
genetic variation in psychiatric disease.
The HIV virus was in the US in the 1970s before it triggered the nation's AIDS epidemic
of the 1980s, a
new genetic study has found
A
new study documents the prolonged and difficult path patients face before they are diagnosed with mitochondrial diseases, a group
of rare, debilitating
genetic disorders.
The achievement opened the door to further
studies of the molecular basis
of heredity and
new strategies to treat cancer and
genetic diseases.
Risks for autism and schizophrenia rise for kids
of older fathers, and a
new genetic study suggests why
In a
new study published in The Quarterly Review
of Biology, Dr. Karen Hardy and her team bring together archaeological, anthropological,
genetic, physiological and anatomical data to argue that carbohydrate consumption, particularly in the form
of starch, was critical for the accelerated expansion
of the human brain over the last million years, and coevolved both with copy number variation
of the salivary amylase genes and controlled fire use for cooking.
Unlike «big data»
genetic studies, which have loosely linked hundreds
of genetic changes to schizophrenia but can not explain varying symptoms, the
new study revealed distinct disease versions that may affect large slices
of patients and enable precision treatment design, say the authors.
In a
new study now published in the latest edition
of the scientific journal PNAS, Bárbara Parreira and Lounès Chikhi from Instituto Gulbenkian de Ciência (IGC; Portugal) show that social structure is important to maintain the
genetic diversity within species.
Indeed, he notes, it's improbable that all
of the previous
genetic studies of red deer, including those living throughout Europe today, wouldn't have picked up any
of the haplotypes he and his team identified in their
new research.
Genetic manipulation
of exosomes, virus - sized particles released by all cells, may offer a
new therapeutic approach to treating pancreatic cancer, according to a
study at The University
of Texas MD Anderson Cancer Center.
«I think it's a remarkable
study,» says cardiologist William Fay
of the University
of Missouri in Columbia, who was part
of the research team that originally identified the girl's
genetic defect but isn't connected to the
new work.
In the
new study, researchers Eran Elinav, Eran Segal and colleagues analyzed the
study participants»
genetic makeup along with the mix
of microbes in stool samples from each person.
Genetic tests for mutations in the so - called breast cancer genes, BRCA1 and BRCA2, may not reveal as much about cancer risk as earlier reports have estimated, according to two
studies published in tomorrow's
New England Journal
of Medicine.
A single introduction
of the Ebola virus led to most cases
of the deadly disease in Liberia, a
new genetic study suggests.
The
new study «adds fuel to an active debate» about the role
of accessory genes, says Alan McNally, a microbiologist at the University
of Birmingham in England — whether or not the collections
of genetic add - ons that bacteria maintain are shaped by natural selection, the process that fuels evolution.
In addition to helping farmers check crop health, the
new system will be helpful for
studying how plants respond to changes in growing conditions and for high - throughput phenotyping, an automated method used in crop research and development to analyze how
genetic modifications affect plant characteristics such as leaf size or drought resistance in a large number
of plants.
«At the time, I was fascinated with reports about efforts to create
new bacteria that could break down compounds or
genetic engineering
studies to make plants that provide all
of the essential nutrients in food and solve malnutrition,» he says.
One
study of autistic or schizophrenic individuals found they'd received four times as many
new genetic mutations from dad as from mom.
In a meta - analysis
of studies that linked
genetic markers to cultural heritage in North and Central America, Iceland, Australia, Africa and
New Guinea, they found that only Y - chromosome DNA reflected the cultural origins
of the local language.
Her
studies on pseudotypes, especially between RNA and DNA viruses, demonstrate the spread
of viruses to
new host cells and provide important tools for
genetic engineering.
Scientists are bringing precision medicine to rheumatoid arthritis for the first time by using
genetic profiling
of joint tissue to see which drugs will work for which patients, reports a
new Northwestern Medicine multi-site
study.
Yet a
new study finds that people who harbor one
of two
genetic variants seem to have a heightened risk
of the cancer if they take aspirin or NSAIDs, drugs that include ibuprofen and naproxen.