Articles tagged with Human Genetics
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...
Genomic imprinting discovered by Davor Solter and Azim Surani reveals maternal chromosomes contribute essential information missing in paternal chromosomes. This phenomenon, coined genomic imprinting, involves tiny methyl groups attached to DNA's four bases regulating fetal growth and development.
A recent sale of genetic data by 23andMe highlights critical gaps in legal protection for genetic information in the US. The authors argue that stronger safeguards are needed to protect consumers from potential misuse and exploitation of their genetic data.
Researchers developed a computational tool to analyze mRNA stability, identifying genes involved in immune system function and linked to autoimmune diseases. The study suggests that mRNA stability may be a key mechanism behind many immune-related diseases.
The study reveals that Slavic groups originated in the region between the Dniester and Don rivers and migrated across Central and Eastern Europe. The genetic data show a mosaic of different groups adapting to local contexts, with no significant sex bias in migrations.
Researchers found 22 previously unknown genetic variants associated with type 2 diabetes by considering participants' hormone levels. The analysis suggests that sex hormone levels interact with genes to increase the risk of developing the disease.
Researchers found 148 fungi-associated genetic variants linked to 9 fungal taxa and associated with chronic disease risk. The study sheds light on the human genetic determinants of the mycobiome, a previously understudied group of gut microorganisms.
Researchers at Salk Institute discover a new microprotein, SLC35A4-MP, that regulates mitochondrial structure and function in brown fat tissue. The study reveals the microprotein's role in maintaining healthy cellular metabolism and regulating body temperature.
Researchers have developed 'molecular scissors' that can precisely and permanently disable the hepatitis B virus's hidden genetic material. The treatment has shown promising results in laboratory tests and HBV-infected mice, with a 99% reduction in circulating viral DNA. This innovation represents a significant step towards a functiona...
Researchers mapped the surface envelope glycoprotein of human endogenous retroviruses, opening doors to new diagnostic and therapeutic opportunities. The study revealed specific antibodies that target the viral proteins, potentially leading to new cancer immunotherapies and treatments for autoimmune diseases.
Dr. Rentería's Australian Parkinson's Genetics Study (APGS) includes nearly 20,000 volunteers, generating a comprehensive genetic database to understand Parkinson's disease variability. He incorporates wearable sensors and digital biomarkers to address clinical heterogeneity.
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.
A new study found that genetic variants in the IL6 gene are associated with a reduced lifetime risk of coronary heart disease, stroke, and peripheral artery disease. These variants also reduce the risk of pneumonia and sepsis, countering fears about impaired immune response.
A new study found that a gene passed down from extinct archaic humans, Denisovans, is present in modern Latin Americans with Indigenous American ancestry and provides an adaptive advantage. The researchers also discovered the gene's presence in ancient individuals excavated at archeological sites across North and South America.
A large-scale study published in PLOS Medicine found no association between early life antibiotic exposure and the development of autoimmune diseases in children. Researchers analyzed data from over 4 million Korean children and discovered no increased risk of Type 1 diabetes, Juvenile idiopathic arthritis, or other autoimmune conditions.
Researchers at the University of Waterloo have developed a novel method using modified M13 bacteria to deliver targeted gene therapies for genetic disorders. This approach shows promise as a cost-effective alternative to current methods, which can be expensive and trigger toxic side effects.
A new method called Causal Pivot detects hidden genetic drivers and subgroups patients by true biological causes of their illnesses. The tool paves the way for major advances in personalized genetic medicine by revealing genetic "routes" into diseases.
A recent study reveals that ORC2 subunit regulates epigenetics and gene expression by compacting chromatin and attracting repressive histone marks at some sites, but activating gene expression at others. This regulation also prevents CTCF binding at certain sites, leading to changes in chromatin structure and gene expression.
An international team reconstructs the genetic interactions of populations in the Southern Caucasus over time, showing a mostly constant ancestry profile. Evidence of migration from neighboring regions is also found, with notable instances of cultural adoption and genealogical links to Central Eurasian Steppe populations.
Researchers at Harvard Medical School found that lithium loss in the brain is an early change leading to Alzheimer's, while a novel lithium compound can reverse memory in mice. The study suggests a new theory of the disease and a potential strategy for diagnosis and treatment.
A new study found that kids of obese parents are more likely to have obesity due to inheriting related genes. The study suggests that a mother's BMI may be particularly important in determining a child's weight, both through direct genetic inheritance and indirect nurture effects.
A new study found that mothers' genetics may have a greater impact on their children's weight than previously thought. Researchers analyzed genetic and health data from over 2,600 UK families to examine the association between parental BMI and child birthweight, BMI, and diet.
Researchers uncover more clues about the risk conferred by variants in the MUTYH gene, which can cause abnormal growths and increase colon cancer risk. The study's high-throughput functional analysis method accurately sorts variants into functional and non-functional categories.
Researchers at Salk Institute launched a machine learning framework called ShortStop to explore overlooked DNA regions and discover microproteins with potential roles in disease. The tool identified 210 new microprotein candidates in lung cancer data, including one validated target for therapeutic treatment.
The American Society of Human Genetics recognizes Dr. Harry Dietz for his work on Marfan Syndrome, Dr. Eric Green for his leadership in advancing human genetics and genomics, Dr. Mike Talkowski for his pioneering contributions to cytogenetics and genomic medicine, and Dr. Elizabeth Bhoj for her extensive work in translational genetics.
A new study by University of South Australia researchers uses genetic recall to explore links between multiple sclerosis (MS) and the Epstein-Barr virus. The study aims to identify early warning signs or biomarkers for MS, enabling early detection and intervention.
Researchers from RIKEN have discovered that Japanese people's responses to alcohol can be divided into three clear clusters based on genetic analysis and experiments. These clusters are associated with specific combinations of gene variations, including ALDH2 and ADH1B, which can help identify individuals at risk for alcohol-related di...
Researchers identify two human brain genes that contribute to brain size and synapse signaling in zebrafish, providing a roadmap for discovering more genes. The study's findings have significant implications for understanding language disorders and autism.
A large Danish study shows that children with a high genetic risk for ADHD are more likely to experience severe neglect and childhood maltreatment. This risk is also influenced by parental mental illness, with girls generally exposed to more maltreatment than boys.
A recent study identified 37 human-specific genes linked to brain development and cognitive abilities, which are hijacked by cancer to drive tumor growth. The researchers discovered nearly half of these genes become aberrantly activated in cancerous tissues, promoting tumor cell proliferation.
A study of 365 adults found nearly one in four had a genetic condition causing their ICU admission, which was unknown to nearly half of those patients and their doctors. The researchers recommend offering genetic testing to all adults admitted to the ICU to improve care and reduce health disparities.
Researchers identified four distinct groups of autism linked to specific genetic variants and biological processes. The study's person-centered approach analyzing phenotypic and genotypic data from SPARK enabled more precise diagnoses and personalized support.
Researchers have identified a gene signature indicative of hepatic ferroptosis using an iron overload-induced mouse model and validated it in human liver injury systems. The study highlights the role of ferroptosis in liver injuries and offers potential therapeutic targets.
A new study from the University of Bath found that individuals with a higher IQ make more realistic predictions, leading to improved life outcomes. Smarter people are significantly better at forecasting, making fewer errors and showing more consistent judgement compared to those with a lower IQ.
A comprehensive analysis of 2,762 Indian genomes reveals a complex history of genetic mixing, endogamy, and population bottlenecks that shaped the country's genetic variation, health, and disease. The study found that most genetic variation in India can be explained by a single migration out of Africa about 50,000 years ago.
Researchers have identified a previously unknown organelle called the hemifusome that plays a crucial role in cellular sorting and recycling. This discovery could lead to targeted treatments for complex genetic disorders like Hermansky-Pudlak syndrome, which affects multiple systems in the body.
Researchers discover vitamin C promotes epidermal thickening by reactivating genes essential for skin cell growth, suggesting a promising treatment for thinning skin in older adults. Vitamin C supports active DNA demethylation by sustaining TET enzyme activity.
The new resource provides a detailed map of blood regulatory variation in South Africans, enabling researchers to interpret genetic variations using genome-wide association studies (GWAS). This innovation has the potential to uncover why people from specific genetic backgrounds may be more susceptible to certain diseases.
Researchers at UCLA have discovered a chromatin-based strategy that enables cells to rapidly produce proteins when nutrients are scarce. This 'priming' mechanism, driven by the MYC gene, allows cancer cells to adapt and survive under metabolic stress.
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 identified genetic factors linked to environmental sensitivity in identical twins, influencing ADHD symptoms, autistic traits, anxiety and depression symptoms, psychotic experiences, and neuroticism. The study highlights the importance of gene-environment interactions in shaping mental health.
A new study using NIH's All of Us Research Program data finds that people from the same reported racial or ethnic group can have wide ranges of genetic differences. Genetic ancestry is more complex than self-reported race and ethnicity, with significant associations between ancestry and biological traits like BMI and height.
A new study combines ancient DNA with dietary evidence and linguistics to paint a vivid picture of pre-colonial coastal communities in Papua New Guinea. The research highlights the influence of migrations and interactions on genetic makeup, supporting previous studies on the settlement of remote islands.
A new AI tool developed by University of Missouri researchers can predict the 3D shape of chromosomes inside individual cells, providing a new view of how genes work. The tool helps identify unique differences in chromosome folding between cells, which controls gene activity and can lead to diseases like cancer.
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.
A genetic variant of ACSF3 has been identified as contributing to the co-evolution of increased human height and basal metabolic rate. This variant is found in humans but not in non-human primates, suggesting a link to the dietary shift towards meat consumption that occurred during modern human evolution.
A recent epigenetic study identified RABGGTB as a promising biomarker for autism spectrum disorder, revealing extensive DNA methylation abnormalities in key brain regions. The findings suggest that studying this gene could unlock new doors to understanding ASD and lead to future diagnostic breakthroughs.
A large genomic study reveals distinct ancestry patterns and early diversification of Indigenous South American populations. The study suggests northern and southern Native American groups diverged between 17,500 and 14,600 years ago, with human presence in southernmost South America confirmed by 14,500 years ago.
Research reveals that different ancestry groups have varying rates of new genetic mutations passed to children, with African groups showing a higher rate. Additionally, parental age, especially paternal age, significantly impacts the number of new genetic mutations, while parental smoking is linked to a small increase in mutation count.
A large-scale genomic analysis reveals Brazil as one of the most genetically diverse countries on Earth, shaped by centuries of colonization and Indigenous heritage. Researchers uncovered over 8.7 million previously undocumented genetic variants, including those potentially affecting population health.
Researchers found that only a small fraction of proteins have genetic differences between males and females. Instead, lifestyle, education, and access to resources also contribute to the health gaps experienced by men and women.
Researchers from Mass General Brigham introduce a data-driven approach to prioritizing genes for public health consideration in newborn genomic sequencing programs. The model achieves high accuracy in predicting gene selection across programs, providing a ranked list of genes that can adapt to new evidence and regional needs.
A novel gene variant in Finns significantly increases the risk of Alzheimer's disease, affecting microglia function and leading to an earlier onset of the disease. The study provides valuable information for developing treatments and highlights the importance of translational research.
A predictive model combining tumor marker readings with patients' genetic profiles enhances predictions for patient survival and surgery decision-making. The new tool accurately identifies candidates who would benefit from surgery, suggesting that current tumor marker evaluations are inadequate for these genetic profiles.
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 team of researchers has comprehensively predicted the location of non-B DNA structures in great apes using newly available telomere-to-telomere genomes. The study suggests that non-B DNA is enriched in these segments and may play a role in genetic diseases and cancer, with potential new functions discovered.
The study reveals that Phoenician culture spread primarily through cultural transmission and assimilation, with little direct genetic contribution from Levantine ancestors. Punic sites showcased a highly heterogeneous genetic profile, with individuals having both Sicilian-Aegean and North African ancestry.
The Mount Sinai Fuster Heart Hospital cardiology faculty practice has received the 2024 Human Experience Pinnacle of Excellence Award from Press Ganey, a leading patient experience organization. The hospital ranks among the top 5% of healthcare providers in delivering patient experience over three years.
A combined study on human pelvis morphology reveals genetic links between pelvic structure and function, locomotion, and childbirth outcomes. The findings suggest that the transition to bipedalism led to a balance of competing demands, resulting in shorter and wider pelvic shapes.