Articles tagged with Genetic Analysis
A new study using genetic signals has strengthened the case for high triglyceride levels as a cause of heart disease. The findings also suggest that high-density lipoprotein (HDL) cholesterol does not have a protective effect on cardiovascular health, contradicting conventional wisdom.
A large-scale study of whole-genome testing has identified a unique treatment approach for women with advanced breast cancer, targeting genomic alterations in their tumors. The study found that around half of patients had targetable genomic alterations, and 39% had rare alterations, many of which no treatments currently exist.
Researchers have identified a new species of beaked whale, Mesoplodon hotaula, based on DNA analysis and physical characteristics of seven stranded specimens. The discovery sheds light on the elusive habits and low abundance of deep-diving whales in the world's oceans.
A study found that non-invasive prenatal testing (NIPT) detected over 83% of chromosomal abnormalities, including trisomies 13, 18, and 21. The test was more accurate for women over 40, but had lower sensitivity for younger women.
Researchers found that treating a peanut allergy with oral immunotherapy changes the DNA of immune cells, which could serve as a basis for a simple blood test to monitor long-term effectiveness. The study involved 20 peanut-allergic children and adults who completed two years of immunotherapy.
A genome-wide association study by 23andMe has identified 11 new genetic markers associated with asthma-with-hay fever. The study, led by researchers at QIMR Berghofer Medical Research Institute, used data from 20,000 individuals and found variants in the ZBTB10 and CLEC16A regions linked to allergic disease.
Scientists at King's College London argue that biobank donors should have unrestricted access to data derived from their own material. This move aims to increase reciprocity and partnership between donors and researchers, recognizing the donor's agency in decision-making processes.
Scientists at Harvard Medical School call for data held in biobanks to be made accessible to donors, enabling them to access their own raw data and conduct independent analyses. This principle aims to promote reciprocity in the relationship between biobanks and participants.
A study of over 57,000 people identified five new genes associated with increased waist-to-hip ratio, a precursor to diseases like cardiovascular disease and type 2 diabetes. The research found that one gene, SHC1, is linked to abdominal fat and may play a role in metabolic imbalance.
Researchers have sequenced the elephant shark genome, providing new insights into bone formation and adaptive immunity. The study reveals a family of genes essential for bone development and identifies a lack of immune cells in sharks, despite robust immune responses.
Researchers analyzed pain response in chickens, discovering that heat stimulation activates TRPA1 receptors similar to cold-blooded animals. Methyl anthranilate, a repellent chemical for birds, also activates chicken TRPA1, highlighting its functional evolution and diversification among vertebrate species.
Researchers found that weekend drinking leads to double the oxidative damage compared to non-drinkers, with DNA damage affecting 44% of cells in drinker group. The study reveals a new potential health risk associated with young people's alcohol consumption.
Researchers have developed a highly sensitive system to detect individual molecules using a 'golden trap' technique. By creating a customized environment with gold nanoparticles and DNA, they can capture and identify single molecules, opening up possibilities for early disease detection in medical diagnostics.
A team of Wayne State University researchers identified transforming growth factor β (TGFβ) signaling as a major pathway affected by hyperglycemia in DM corneal epithelial cells. Adding TGFβ3 to the wound accelerated epithelial wound closure, providing new treatment options for diabetic wound healing.
Researchers from East China Normal University discovered NMDA receptor 2B subunit gene expression declines significantly associated with memory impairment in aged animals. The study identified key regulatory pathways, including P53 and insulin-like growth factor pathways.
The analysis of Rhizophagus irregularis genome reveals its unique ability to capture phosphorus and communicate with plants through cell-to-cell signaling. The fungus has retained much of its metabolic machinery, unlike many other obligate parasitic organisms.
The MRC Integrative Epidemiology Unit will conduct cutting-edge research to improve understanding of biological mechanisms and environmental factors underlying common diseases. Researchers will develop novel approaches to analyze data from 'omics' technologies and identify true causes of disease.
A new study published in Human Genetics found that 180 DNA variants predict tall stature in Europeans with an accuracy of 0.75.
A study by Washington University School of Medicine found that healthy children have numerous antibiotic resistance genes in their gut microbes. The research highlights the need for responsible antibiotic use to prevent the spread of resistance and serious illness.
A new study finds that 65% of Americans agree clinicians should be involved in explaining DTC genetic test results. This concern is shared by physician groups and medical journals, highlighting the importance of doctor guidance on interpreting genetic risks.
A new study found that tigers are dispersing over much greater distances than previously recorded, with long-range connectivity reduced by human settlements and roads. Genetic approaches combined with landscape ecology revealed evidence of tiger populations connected across 650 km in Central India.
Research shows that chronic stress alters gene expression in immune cells, making them pro-inflammatory and prone to excessive inflammation. This can lead to various health issues, including cardiovascular diseases, diabetes, and obesity.
A recent genetic study published in Scientific Reports reveals that Israel's wild boars descended from European pigs brought by the Philistines approximately 3,000 years ago. The research analyzed DNA samples from over 25 modern-day wild boars and found a dominant European genetic signature.
Researchers identified 11 new genes associated with late-onset Alzheimer's disease, including SORL1 and CASS4, which affect amyloid and tau protein accumulation. The study also found connections between these genes and inflammation, synaptic function, and brain cell activity.
Researchers have devised a model of DNA's close environment under threat from low-energy electrons, revealing their effects on DNA in natural conditions. The study aims to improve current uses of radiation, such as in cancer treatments and diagnostic procedures.
A genome-wide meta-analysis of COPD patients has identified novel gene variants associated with bronchodilator responsiveness. The study used data from over 6,000 patients and found that genetic determinants likely influence response to inhaled medication.
Researchers at the University of Basel have identified a new compound that reduces aversive memory, a trait central to anxiety disorders like PTSD. The compound, a known antihistamine, was found to significantly reduce memory recall of negative pictures but not neutral or positive ones.
A study published in BMC Medicine found that nearly 60% of herbal products contained plant species not listed on the label, while 32% showed product substitution. This can lead to health risks due to toxicity and interactions with other herbs, supplements, and medications.
A massive DNA study has uncovered 157 genetic changes that alter cholesterol and blood fat levels, potentially leading to new medications. Triglycerides play a larger role in heart disease risk than previously thought, and the research provides strong foundation for further investigation.
A new study conducted at the University of Nottingham has found that strong genetic factors do not influence handedness. The researchers examined nearly 4,000 subjects and were unable to detect a single major genetic determination for handedness.
Researchers have identified 48 new genetic variants linked to multiple sclerosis, nearly doubling the number of known risk factors and shedding light on the immune system's role in the disease. The study, led by the University of Miami Miller School of Medicine, confirms the critical involvement of genetic factors in MS development.
The Pan-Cancer Initiative has identified common genetic patterns across various tumor types, enabling researchers to extend therapies effective in one cancer type to others with a similar genomic profile. This breakthrough has the potential to revolutionize cancer treatment by recognizing similarities between seemingly distinct tumors.
A new study found that elite power athletes are more likely to have the AGT 'CC' genotype, which may predispose them to improved power and strength capacity. However, the functional significance of this genetic variant remains unclear.
A new technique for single-cell analysis of gene expression, named Smart-seq2, has been developed to identify rare cell subpopulations in tumors. This method captures three to four times as many RNA molecules as current methods, allowing for a more granular analysis of how subtle differences contribute to biology and disease.
Researchers analyzed blood samples from over 1800 participants and found that specific DNA segments were associated with altered metabolic processes. The study provides new insights into how lifestyle factors impact metabolism via epigenetic changes.
Scientists have identified genes responsible for bedbug pesticide resistance, enabling them to thrive in homes and hotels. The discovery highlights the need for a multi-faceted approach to manage bedbug infestations, including integrated pest management and non-chemical measures.
Researchers from the University of York and Czech institutions discovered five new species of Vesper bats in Senegal, showcasing unexpected genetic diversity. The discovery confirms that West Africa may represent a bio-geographic hotspot with many more species to discover.
University of Arizona researchers have discovered a new secret in spider venom, finding that the venom produces a different chemical product in the human body than previously thought. This discovery has implications for understanding how brown recluse spider bites affect humans and developing possible treatments.
A genetic study conducted by 23andMe has identified four genetic markers associated with the development of non-syndromic striae distensae (stretch marks), a skin condition affecting approximately 50-80% of people. The study suggests that elastin, a key component of elastic fibers in the skin, plays a crucial role in the formation of s...
Researchers from RIKEN have developed a highly efficient molecular probe, Eprobe, for real-time PCR monitoring and genetic testing. The new technology enables advanced assays for DNA-based genetic testing and helps bring genome-wide sequencing studies to patients in the clinic.
A UC Irvine study has found that breath analysis may be an accurate way to quickly determine the severity of bacterial infections. The researchers correlated inflammation levels in laboratory mice with carbon monoxide and other gases in breath samples, making carbon monoxide a reliable biomarker for infection presence and intensity.
A study found that more than half of parents misunderstood key concepts of genetic biobanking consent, highlighting the need for clearer explanations and inclusive consent models. Researchers are exploring alternative methods of consent delivery to improve understanding and empower families as partners in genetic research.
A study has identified two networked groupings from 26 genes associated with autism that are overexpressed in the cerebellar cortex. The findings suggest specific brain regions implicated in pathology and complement genomic and neuroimaging analyses to obtain a broader picture of the autistic brain.
A new genome sequencing technique has been used to select embryos for IVF, resulting in the first birth following embryo screening. The 'next generation sequencing' method reveals information on genetic disorders and chromosomal abnormalities, increasing the chances of successful pregnancies.
The study identified 16 new genetic associations related to pollen, dust-mite, and cat allergies, highlighting key pathways in the biological basis of common allergies. This research provides a significant step towards understanding the genetic link between allergens and allergic reactions.
Researchers at Rice University analyzed thousands of mutant worms to identify genes controlling movement, revealing 87 new links in the process. The study also uncovered evidence for a protein-signaling pathway regulating locomotion, with implications for prioritizing genetic tests in humans.
Scientists at NC State University have discovered the first example of a micro-RNA controlling lignin biosynthesis, which gives wood its strength. The research found that reducing lignin content by over 20% can increase the efficiency of paper and biofuels production.
Chang Lu, associate professor at Virginia Tech, is awarded a $710,000 NIH grant to advance cancer research technology using chromatin immunoprecipitation (ChIP) assay on microchip devices. The new test provides ultrahigh sensitivity and aims to study tumor-initiating cells and molecular dynamics.
Researchers analyzed North Pacific killer-whale strandings, finding 88% fatal and 12% surviving, providing clues on species' overall life history, genetics, and health. The standardized necropsy system increased data collection from 2% to 33%, shedding light on the causes of death and human impact on orca populations.
Researchers found King Richard III in a hastily dug, lozenge-shaped grave under a Leicester car park, suggesting gravediggers were in a hurry to bury him. The grave was too short for the king's body, and his torso was crammed in, with evidence of hands being tied during burial.
A pan-European study found that certain signs of motor disorders can appear years before the actual disease manifests. The researchers detected these signs using a mathematical model and extensive tests, including standardized tests of muscular coordination and magnetic resonance imaging.
A new report highlights the challenges of collecting DNA for human rights purposes, such as protecting victims of human trafficking. The authors propose multiple approaches and solutions to combat this issue, including collaboration among government authorities, law enforcement, social services, academics, and victim advocates.
A new species of green palm-pitviper was described from a cloud forest reserve in northern Honduras. Genetic analysis revealed that the closest relatives are found over 600 km away in Costa Rica, indicating a relict lineage.
Researchers analyze over 1,000 genes from 23 yeast species to identify reasons for conflicting phylogenetic trees and propose new methods to improve accuracy. They find that genetic data is less reliable during periods of rapid radiation and that the value of DNA data may have a similar limit.
Researchers found that genes controlling circadian clock rhythms are profoundly altered in the brains of people with severe depression, suggesting a physical basis for many symptoms. The study provides clues for potential new classes of compounds to rapidly treat depression by resetting abnormal clock genes.
Ancient DNA analysis confirms Yersinia pestis as the cause of the Justinianic Plague. The results provide insights into the phylogeny and origin of this plague, contradicting previous theories. This breakthrough sheds new light on a major pandemic in European history.
Genetic analysis reveals potential origins of novel avian influenza A H7N9 virus, suggesting at least four possible evolutionary paths. The virus has evolved into two distinct lineages, with unknown intermediate hosts implicated, highlighting the need for global surveillance and close monitoring of domestic-poultry-to-person transmission.
Advaita, a Wayne State University startup, is participating in the new Michigan I-Corps program to turn its biotechnology innovation into commercial opportunities. The company aims to streamline drug-discovery methods, saving time and money for academia and pharmaceutical industries.
Research found that specific DNA regions contribute to prostate cancer development and early death, with patients having two of these changes at high risk. The study identifies key genes PTEN and MYC as linked to prostate cancer lethality.
A phase 1 clinical trial of Rigosertib, a dual kinase inhibitor, demonstrated the drug's effectiveness in patients with head and neck cancer who have failed platinum-based therapies. The results led to an 80-patient multi-institutional Phase II trial to explore biomarkers for accurate patient matching.