Articles tagged with Genetic Analysis
This April issue of the Genetics Society of America's journal features research on genotyping-by-sequencing, a novel gene silencing system in fungi, and the role of protein chaperone HSP90 in facilitating gene duplicate divergence. Additionally, studies explore genome integrity and RNA editing in mice.
A study by Johns Hopkins Medicine has identified DNA-damaging toxins in commonly consumed plant-based foods, including liquid smoke flavoring, black and green teas, and coffee. The toxins, pyrogallol and gallic acid, can activate the p53 gene, which is associated with cancer.
A study by MIT and Université Catholique de Louvain found that just four points of reference were enough to uniquely identify 95% of cellphone users in a data set of 1.5 million users. The researchers used statistical physics tools to uncover a simple mathematical relationship between data resolution and identification probability.
Two new species of mouse lemurs have been identified by Duke University scientists, one named Anosy mouse lemur and the other Marohita mouse lemur. The genetic analysis reveals that these species are distinct and do not interbreed with other recognized mouse lemur species.
Two genes associated with rare autism-related disorders are also jointly linked to more general forms of autism, according to a new study published in Molecular Psychiatry. The findings suggest a new genetic pathway to investigate in general autism research.
A genome-wide association study identifies 20 new genetic associations for myopia, a refractive error resulting from increased axial length of the eye. The study suggests that complex interactions underlie the development of myopia, with extracellular matrix remodeling and neuronal development playing key roles.
A new DNA-based technique allows early identification of Geomyces destructans, a fungus causing White Nose Syndrome (WNS), in bats, soils, and cave walls. The test is 100-times more sensitive than previous ones, detecting single spores of the fungus.
Researchers at Ohio State University have discovered the genetic mechanism that led to the development of wings in fruit flies, a key to their survival. By analyzing 20 cells present in the larval stage, they found that a specific gene, Dpp, triggers the growth of wings by activating another gene, vn.
A 33,000-year-old Siberian fossil, known as the 'Altai dog', is found to be more closely related to modern dogs and prehistoric canids on the American continents than wolves. This challenges previous theories suggesting a recent emergence of modern dogs from wolf ancestors.
A team of researchers found that bacteria in Bangladesh's aquifers use surface-derived organic carbon, which is naturally released from sediment into groundwater. This process predates recent human interaction and suggests that intensive pumping has not yet significantly affected arsenic release.
A comprehensive study has identified seven new regions of the human genome associated with increased risk of age-related macular degeneration (AMD). The study, led by Case Western Reserve University School of Medicine, found that AMD is not caused by a single genetic change but rather by many events that accumulate over time.
The study identified seven new loci near genes that are associated with increased risk of age-related macular degeneration. The analysis included data from over 17,000 people with advanced AMD and 60,000 without, revealing a variety of biological functions implicated in the disease.
Researchers have discovered seven new genetic loci associated with increased risk of age-related macular degeneration (AMD), a condition that affects central vision and can lead to blindness. The study, supported by the National Eye Institute, represents the most comprehensive genome-wide analysis of AMD genetics.
A University of Utah study found a significant genetic connection to surgical site infections (SSIs) in families, suggesting personalized health care through genome analysis could be available soon. Researchers analyzed 651 hospital patients with SSIs and matched controls using the Utah Population Database.
Researchers have found genetic variants linked to alcoholism in the Spanish population, including women. The study identified polymorphisms in genes related to metabolism and the dopaminergic system, which are associated with increased risk of hazardous drinking and dependence.
The novel TP PCR test yields accurate results without unnecessary additional testing, improving diagnosis and prognosis by accurately sizing the genetic abnormality characteristic of HD. The test correctly sized 240 of 246 samples, including those with a wide range of CAG repeats.
A recent study published in PLOS Medicine found a strong association between obesity and vitamin D deficiency. The research, led by Dr Elina Hypponen, used genetic markers to explore the link between body mass index (BMI) and genes associated with vitamin D synthesis and metabolism.
A team of plant geneticists successfully demonstrated that weakening the FEA2 gene can increase meristem size and lead to more rows and kernels in maize plants. This research has significant implications for increasing yields of essential food crops as the global population is projected to reach 8-9 billion by mid-century.
Researchers at Imperial College London have developed a rapid method to create new parts for biological factories, which could lead to the mass production of sophisticated devices and unlock their potential in society. This breakthrough brings scientists one step closer to an 'industrial revolution' in synthetic biology.
The new age of proteomics brings a comprehensive understanding of cellular proteins, shedding light on their role in illnesses. The next-generation proteomics technology enables improved biomarker search, personalized therapies, and enhanced cancer diagnosis.
Researchers identified a genetic marker in over 300 women with breast cancer, finding that those with this marker were more likely to experience recurrence. This breakthrough could enable doctors to tailor treatment strategies for high-risk patients based on their unique genetic profiles.
A study on rhesus macaques found that their social network behavior is influenced by genetics and heritability. Pro-social monkeys with strong networks had greater reproductive success, while aggression had a weaker link to heritability.
Researchers have developed a technique to overcome inhibitory plant compounds, allowing PCR to successfully amplify DNA from problematic plants. The additive TBT-PAR, containing trehalose, bovine serum albumin, and polysorbate-20, enhances PCR for DNA extracted from various plant species, including tropical and temperate species.
Researchers identified three genetic variants associated with abnormal insulin production, increasing the risk of developing diabetes. The study's exome array genotyping analysis revealed the involvement of genes TBC1D30, KANK1, and PAM in insulin processing and secretion.
Forensic experts at Uppsala University identified the remains of Carin Göring, wife of Nazi leader Herman Göring, through DNA analysis. The researchers matched mitochondrial and nuclear DNA with historical records, confirming her identity.
Among eligible women, 19.1% underwent risk-reducing salpingo-oophorectomy (RRSO) and 39.6% used screening procedures, with women receiving a positive BRCA test result having increased odds of these interventions, while true-negative results were associated with reduced odds.
The new feature uses DNA inherited from all ancestors on both sides of the family to indicate an individual's ancestral origins. Ancestry Composition offers state-of-the-art detail for people with European ancestry and accurate breakdowns for individuals of mixed ancestry.
The Genographic Project has launched a new phase, utilizing advanced genetic technology to explore human migration patterns. Participants can learn about their migratory history, regional affiliations, and even Neanderthal or Denisovan ancestry.
Researchers developed a new method to analyze genetic data to learn about population history, using the Ashkenazi Jews and Masai people as test subjects. This approach allows for detailed events in recent history to be recovered within the last few centuries.
Researchers have identified a link between inflammation and heart disease through the largest genetic study of Coronary Artery Disease (CAD) to date. The study found that lipid metabolism and inflammation play a significant role in CAD, providing evidence for a novel pathway for prevention and treatment.
Researchers compared the genomes of domestic pigs with wild boars to reveal genetic differences that could improve pig health and combat diseases like diabetes, obesity, and Alzheimer's. The study also identified genes linked to smell, shedding light on human diseases.
Scientists have confirmed the existence of a new tick-borne disease in Switzerland, neoehrlichiosis, which has infected eight patients with severe symptoms. A DNA test has been developed to detect the infection quickly, allowing for timely treatment.
Whitehead scientists found that traditional approaches ignore differences in mRNA amounts between cells, which can lead to misinterpretations in cancer research. The team proposes using RNA spike-ins as a standardized control to eliminate assumptions.
Advaita Corporation, a startup based on Wayne State University tech, received $125,000 from the Michigan Emerging Technologies Fund program. Its Pathway-Guide software solution provides cutting-edge gene pathway analysis technology for researchers.
A new genus of ferns has been discovered, with 19 species named after pop star Lady Gaga. The 'Gaga' ferns were recognized for their unique characteristics, including fluid definitions of gender and a distinct DNA sequence spelling GAGA.
A multidisciplinary approach combining radiocarbon analysis, anthropological analysis, and forensic DNA techniques has been used to identify the remains of a missing child 41 years after discovery. The method was successful in pinpointing birth dates and death dates for the child, providing a breakthrough in solving cold cases.
A variant in the NFKB1 gene has been associated with a 44% reduced risk of lung cancer, according to a new analysis of 378 patients and 450 healthy controls. The study suggests that inflammation may play a role in lung cancer development.
Scientists sequenced nearly all genes in an underground microbe community at a contaminated uranium mill site, assigning them to 80 different microbes. The findings could help improve clean-up methods for heavy metal contamination, including arsenic and mercury.
Researchers developed EvoD to sift meaningful variants from thousands of mutations in personal genomes, improving diagnostic accuracy. The technique capitalizes on comparative genomics and exome analysis, showing promise for detecting functionally damaging gene variants associated with Mendelian diseases.
The Cancer Genome Atlas study identifies four main breast cancer subtypes defined by PAM50, with diverse genetic and epigenetic alterations converging into these phenotypes. The study's findings advance understanding of breast cancer biology and support the use of PAM50 as a gold standard for categorizing breast cancer by subtype.
Researchers have developed a new analysis framework to help clinicians spot 'medically actionable findings' from genetic tests, streamlining the process and providing more timely results. The approach classifies genetic variations into three categories, prioritizing those linked to treatable or preventable conditions.
Studies show that some structural features of languages are relatively stable over time, while others exhibit individual family-specific factors. Researchers found probable connections between the Americas and NE Eurasian languages dating back to peopling of the Americas 12,000 years ago.
Researchers at Whitehead Institute identified four genetic markers that predict pluripotency in single cells, allowing for more efficient reprogramming. The team also discovered six new combinations of factors that activate Sox2, leading to full reprogramming and potentially healthier iPSCs.
The Innocence Project has helped free nearly 300 wrongfully convicted prisoners due to improper use of forensic science. Improved sensitivity in DNA testing has highlighted issues of cross-contamination, affecting accuracy.
The ENCODE project reveals a massive control panel in the human genome, with 4 million gene switches, to regulate gene expression and prevent disease. The comprehensive data will help researchers pinpoint specific areas for human disease research.
The study suggests that three-quarters of the human genome can be transcribed into RNA, leading to a redefinition of what defines a gene. This implies that many regions previously thought to be non-functional may have functional roles.
Researchers at UC Riverside have developed a test called CTAB, which examines how DNA modifications lead to aberrant transcription and disruption in protein synthesis. The method could help explain how environmental chemicals cause cancer development and lead to the development of new effective drugs.
A new genetic analysis maps the Jewish Diasporas, focusing on North African Jews. The study supports historical records of Middle Eastern Jews settling in North Africa and forming distinct populations.
Researchers at Wayne State University are working on a new technique to analyze fetal chromosomes in the first trimester, which could lead to healthier outcomes for mothers and babies. The approach involves collecting placental cells from the cervix using a safe and non-invasive method.
Researchers at Michigan State University have developed a computational technique that reduces memory requirements by 40-fold, allowing scientists to analyze large genomic sequence datasets without supercomputers. This breakthrough enables the efficient examination of complex microbial communities living in soil or the ocean.
A new study reveals that Native-Americans' high rates of diabetes may be attributed to their ancestors' high-fiber diet, which was rich in foods like maize and sunflower seeds. This diet, characterized by low fat and glycemic index, could have given rise to 'thrifty genes' that now contribute to the disease.
A team of scientists has discovered an epigenetic enzyme that doubles the output of thousands of different genes in male fruit flies to compensate for their single X chromosome. The study found twice as many DNA-transcribing proteins attached to the male X chromosome compared to females.
The Iberian wolf's distribution in Galicia is primarily driven by landscape characteristics offering refuge from humans. Landscape attributes account for 48% of animal safety, while human presence and food availability contribute to a lesser extent.
23andMe's acquisition of CureTogether expands its capacity for people-powered research and community-driven projects. The combined platforms will facilitate the sharing of genetic and phenotypic data to accelerate research discoveries.
Researchers found that parasitic plant Rafflesia cantleyi has 'stolen' genes from its host Tetrastigma rafflesiae, including those related to respiration and metabolism. This horizontal gene transfer has replaced the parasite's own gene activity in three-quarters of the cases.
Researchers have identified three types of fetal cells in maternal organs: trophoblasts, mesenchymal stem cells, and immune system cells. These cells may help the mother's immune system tolerate the fetus and aid in organ repair.
Researchers successfully sequenced the fetal genome without invasive sampling, enabling the detection of thousands of disorders. They overcame obstacles by applying statistical modeling and technical advances to resolve maternal haplotypes with high accuracy. The breakthrough paves the way for comprehensive prenatal genetic screening.
An interdisciplinary team has completed the most comprehensive genetic analysis of corn, shedding light on its genetic diversity and evolution. The study provides a foundation for developing improved varieties equipped to resist pests and disease, addressing global food security challenges.
Scientists have developed a method to analyze noisy X-ray data, revealing details of molecular structure previously discarded due to low signal quality. This breakthrough could lead to more accurate models and improved understanding in biology, medical diagnostics, nanotechnology and other fields.
Two studies led by University of Pennsylvania scientists uncover new information about Native American and First Nations migration patterns, genetic impact of cultural practices and historical relationships among groups. The research provides the first clear evidence of shared markers in DNA of people living in the circumarctic region.