Articles tagged with Developmental Genetics
A recent study by University of California - Davis researchers has identified a protein called DAXX that guides the packing and folding of DNA in sperm cells. This discovery could improve treatments for couples struggling with male infertility, as well as help understand how environmental factors impact offspring health.
Recent advancements in animal models, organoid models, and bioengineered organoids have provided new tools for studying primary sclerosing cholangitis. These models replicate the effects of bile retention and inflammation, enabling studies of disease mechanisms, drug screening, and preclinical evaluation.
Researchers developed RegVelo, an AI framework that models cellular dynamics and gene regulation to predict cellular fate decisions. The model traces developmental trajectories and simulates regulatory interactions, providing insights into hidden drivers of development and potential therapeutic targets.
Researchers developed a framework to study the impact of genetic variants on neurodevelopmental disorders. By analyzing induced pluripotent stem cells, they found that genetic background can lead to different clinical outcomes in individuals with the same deletion on chromosome 16.
Researchers at the UC Davis MIND Institute found that polychlorinated biphenyls (PCBs) alter genes more in females than males, with a key gene called XIST playing a protective role. Folic acid also shows promise in mitigating harmful effects of PCB exposure, particularly in women.
Aging bone repair declines due to mitochondrial DNA structures disrupting stem cell function, reducing energy production and causing cellular senescence pathways. Targeting these structures may restore balance between bone and cartilage formation during healing.
Researchers developed mosaic mini-brains to study focal cortical dysplasia type II, a condition causing seizures in children. The findings support the two-hit model, suggesting that complete loss of DEPDC5 is necessary and sufficient to initiate the disease, with mosaicism determining lesion extent.
A new University of Michigan-led research has identified a connection between keratin 16 and type 1 interferon in the molecular pathways of pachyonychia congenita. The study found that losing or altering K16 causes amplification of the inflammatory response, but also helps pump the brakes on that response.
A team of researchers found that Gli2 and Gli3 function synergistically to regulate tooth root morphogenesis. Their study revealed a critical interaction between HH signaling and TGF-β signaling, which is essential for normal root development.
Researchers found that an extra copy of chromosome 21 leads to increased levels of the ADARB1 enzyme, causing premature and excessive RNA editing in developing brain cells. This dysregulation affects how brain cells communicate and form circuits, potentially influencing neurological and behavioral outcomes in Down syndrome.
Researchers created a pioneering database to map neocortical development across species using multiomic data from 188 studies. They discovered that humans take longer than mice to reach full molecular maturity, and gene regulation plays a key role in brain disorders.
A new clinical trial will investigate whether adding the oral medication vorasidenib to standard chemotherapy improves progression-free survival for people with newly-diagnosed, grade 3 IDH-mutant astrocytoma. The study aims to recruit 400 individuals with this type of brain cancer and evaluate the safety and side-effect profile of the...
A new study explores how artificial lighting at night shapes ecological and genetic patterns of two closely related isopod species, Ligia laticarpa and L. furcata, in Tokyo Bay. The research reveals a clear ecological boundary between the two species, consistent with patterns of urban illumination.
A study of 225 newborns found that high prenatal oestrogen levels, indicated by long index fingers, are associated with large head circumference and increased brain size in boys. This could provide evidence for the positive influence of prenatal oestrogen on human brain evolution
A Johns Hopkins University-led team analyzed genetic data from nearly 140,000 IVF embryos and found robust connections between specific variations in a mother's DNA and her risk of miscarriage. The study identified key genes that govern chromosome pairing and cohesion, shedding new light on human reproduction.
Researchers analyzed solitary mason bee gut metagenomes to understand how urban environments shape diet, microbiome stability, pathogen exposure, and antibiotic resistance. The study found that bees' gut ecosystems containing both bacteria and viruses are more resilient than bacteria-only communities.
A recent study reveals how ancient viral DNA, specifically the MERVL element, plays a crucial role in early embryonic development. Activating this element is sufficient to create totipotent features in early embryos, but its precise contribution is not well understood.
A new study suggests that genetic differences passed down from ancient human ancestors and exposure to common chemicals could explain why some women are more likely to develop endometriosis. Researchers identified six genetic variants linked to the condition, which also occur in genes sensitive to modern pollutants.
Researchers found consistent parental monitoring can offset genetic risk for developing behavior problems during adolescence. High levels of parental monitoring appeared to buffer the influence of genetic risk, making a measurable difference even for children who are more vulnerable biologically.
New research from the Stowers Institute for Medical Research reveals planarian stem cells ignore their nearest neighbors and respond to signals further away in the body. This discovery may help explain the flatworm's extraordinary ability to regenerate and offer clues for developing new ways to replace or repair tissues in humans.
The ACMG has established a Newborn Screening Coalition to maintain national oversight and evaluation of genetic disorders, ensuring continuity in the nation's newborn screening system. The coalition will uphold standards of evidence-based review and transparency.
A study published in Annals of Neurology reveals a genetic connection between errors in the EPG5 gene, which causes Vici syndrome, and Parkinson's disease. Researchers found that individuals with rare errors in EPG5 were more likely to develop Parkinson's disease and dementia.
Researchers at Stowers Institute for Medical Research have identified the precise location where human chromosomes break and recombine to form Robertsonian chromosomes. The study reveals that repetitive DNA sequences play a central role in genome organization and evolution, explaining how these rearrangements form and remain stable.
A recent study from the University of Illinois Urbana-Champaign sheds new light on the origin and evolution of the genetic code, providing valuable insights for genetic engineering and bioinformatics. The research team found that the genetic code's origins are mysteriously linked to the dipeptide composition of a proteome, with dipepti...
Researchers discovered that a small tissue fold, cephalic furrow, plays a crucial role in stabilizing embryonic tissues during fruit fly development. The formation of the furrow absorbs compressive stresses and prevents mechanical instabilities.
Researchers identified two major steps in the evolution of human bipedality, involving a shift in the growth plate and changes in bone formation. These genetic shifts, driven by genes such as SOX9 and PTH1R, fundamentally altered the pelvis geometry, enabling humans to walk upright.
Researchers from Kyoto University discovered that periodical cicadas use a four-year body weight threshold to decide when to emerge. The 16-year-old nymphs with red eyes and large body weights likely exceeded the critical threshold, indicating their decision to emerge.
Researchers uncover how EZH2 gene mutations sabotage healthy copy, leading to intellectual disability and overgrowth, with implications for related diseases and cancer. The study provides new insights into chromatinopathies and potential targeted therapies.
Researchers have established apple snails as a system to study eye regeneration, which may hold the key for restoring vision due to damage and disease. The team discovered that the snail eye is anatomically similar to humans and can regrow itself, with genes such as pax6 playing a crucial role in development.
A new study found that genetic loci for gut length variation are sex-specific in cichlid fish species, suggesting 'sexual conflict' led to differences. The research used closely related species with different diets to identify genetic loci impacting males and females differently.
Researchers from BIOMICs group found significant genetic marker associations with facial areas, including eyes, nose, and forehead. The study aimed to predict external human features using DNA analysis for forensic purposes.
A team of scientists has found that the ion channel PIEZO2 is crucial for coronary vessel formation and heart development. Without PIEZO2, coronary arteries may develop improperly, leading to oxygen supply issues in the heart muscle. This discovery could lead to earlier diagnosis and treatment of congenital heart defects.
Researchers at University of Otago have identified a genetic cause for a rare developmental disorder affecting brain growth and function in children. The study found that a specific change in the CRNKL1 gene is associated with severe microcephaly, pontocerebellar hypoplasia, seizures, and intellectual disability.
Researchers argue that deliberate full extinction might be acceptable in rare cases, but only with careful consideration of ecological and moral implications. The study calls for robust ethical safeguards and inclusive decision-making frameworks to guide the use of genetic modification technologies.
ADHD researcher Barbara Franke's work transforms understanding of neurodevelopmental disorders through innovative molecular approaches. Her research combines cutting-edge bioinformatics with experimental models to identify genes and pathways underlying behavioral differences.
As women age, more genes on their X chromosomes escape silencing, potentially influencing disease. This epigenetic change may explain sex-based differences in age-related diseases.
The study discovered that closely related SCAR proteins have distinct functions in plant cells, with specific regions impacting protein stability. This knowledge could improve understanding of plant-microbe interactions and develop strategies for improved plant growth.
A study by University of Cambridge scientists reveals how genetic changes in Hibiscus flowers led to the loss of visually striking bullseye patterns. The research identifies a key gene regulator and demonstrates how similar floral changes can evolve independently through changes in a single genetic element.
Researchers have discovered a selfish X chromosome in fruit flies that manipulates inheritance in both males' sperm and females' eggs. The supergene's unique structure allows it to expand and accumulate repetitive DNA sequences contributing to its ability to cheat during female reproduction.
Researchers analyzed the genetic information of over 70,000 infants to discover 11 genetic markers that influence when babies take their first steps. This study suggests that genetics plays a significant role in determining when children start walking, with some kids naturally starting earlier or later due to their genetic propensity.
Researchers uncover pivotal role of ZmCCT2 in regulating maize mesocotyl length and adapting to high altitudes. Significant associations between genetic variations and mesocotyl lengths were found, highlighting the essential function of ZmCCT2 in promoting cell elongation.
A Phase II trial found durable antitumor activity in patients with BRCA1/2 mutations treated with olaparib and pembrolizumab, with 8.3% complete response rate
The treatment demonstrated early signals of efficacy, with 65.7% of patients experiencing lasting stable disease, and was generally well-tolerated, with most adverse events being mild and manageable.
A recent study by the University of Zurich examined the connection between retinal nerve connections and schizophrenia. The researchers found that individuals with a higher genetic risk for schizophrenia tend to have thinner retinas, which can be detected using non-invasive retinal measurements.
Researchers at MIT have discovered that a genetic variant can lead to defects in transfer RNA molecules, causing embryonic face cells to fail to fuse properly. This study sheds light on the molecular mechanisms underlying cleft lip and cleft palate formation.
A cross-sectional study found that moderately preterm birth was associated with long-term cognitive problems. The study highlights the need for continued follow-up of all preterm children, particularly those born before 34 weeks' gestational age.
Researchers found that inhibiting WNT signaling after the hemogenic endothelium stage enhances blood progenitor formation from pluripotent stem cells. This strategy corrects intrinsic deficiencies and brings in vitro-derived HSPCs closer to their in vivo counterparts.
Novel biomarkers like miRNA-34a link anthracyclines to cardiotoxicity, while stem cell therapy and nanotechnology offer potential for prevention and treatment. Traditional strategies have limitations, but new approaches hold hope for improved patient outcomes.
Researchers developed a novel approach to understanding how transcription factors determine genetic programs in cells. They used CRISPR to knock out individual transcription factor functions across many blood cells at once and identified key genes and regions responsible for blood cell development.
Researchers at Karolinska Institutet have developed a method to track the development of cells in the nervous system and inner ear. The technique, known as ectoderm barcoding, reveals that cells in the inner ear develop from two main types of stem cells.
Researchers developed a new viscoelastic model of enzymes, elucidating the intertwined effects of elastic forces and friction forces on enzyme function. This breakthrough allows proteins to be perceived as soft robots or programmable active matter, revolutionizing our understanding of enzymatic catalysis.
Research reveals that placental DNA methylation influences expression of genes associated with psychiatric disorders, suggesting genetic risk manifests during prenatal stage. The study identifies schizophrenia, bipolar disorder, and major depression disorder as most strongly linked conditions.
Researchers found that selfish genes use self-assembly properties to harm cells, with aggregate size and distribution being key factors in toxicity. The study also reveals an evolutionary arms race between sabotage and salvation, where rapid evolution of 'selfish' genes can lead to their own destruction.
Genetic changes triggered by environmental factors like pollution, diet, and stress can increase cancer risk. Nearly everyone is exposed to cancer risk factors daily, highlighting the need for public awareness and policy action to reduce exposure.
The study identified over 34,000 genomic regions with distinct ON/OFF methylation patterns, including novel imprinted regions and tissue-specific variability. This atlas provides valuable insights into epigenetic regulation and may help explain the inheritance patterns of genetic diseases such as CHARGE syndrome.
A study found that adding blood metabolite data to genetic risk scores improves glaucoma prediction accuracy, particularly in individuals at high genetic risk. Higher levels of lactate, pyruvate, and citrate were associated with a reduced risk of glaucoma.
Researchers analyze gene expression in Retinal Determination Network to identify developmental differences between Tegenaria pagana and other spider species. The study sheds light on evolutionary adaptations in cave environments, including the genetic factors influencing eye reduction.
Researchers have discovered that the developing brain can reorganize its sensory maps in response to the absence of sensory stimuli from birth. The study found that the thalamic region adapts a genetic profile similar to that of the affected area, enabling cortical reorganization and functional changes.
Dr. Guy Rouleau, a renowned geneticist and neurologist, has founded the world's first academic institution committed to open science principles. The Neuro institute aims to transform how brain disease research is conducted worldwide by promoting data sharing and collaboration.