Articles tagged with Medical Genetics
A new genetic cause of obesity has been discovered, linking it to the SMIM1 gene variant. People with this variant tend to expend less energy when at rest, leading to excess weight and increased risk of obesity.
A study using induced pluripotent stem cells has revealed that inflammation triggered by retrotransposons and interferon signaling causes atherosclerosis in Werner syndrome patients. The researchers propose targeting the interferon signaling pathway as a potential treatment for reducing stroke and heart attacks.
Researchers have found that approximately one in 40 human bone marrow cells carry massive chromosomal alterations without causing any apparent disease or abnormality. Cell samples from people over 60 tend to have higher numbers of cells with such genomic alterations, suggesting a possible connection to ageing-related diseases.
The study highlights the importance of protease-activated receptors (PARs) in cancer growth and development, with PH-binding motifs identified as a key platform for drug design. The researchers suggest that targeting PARs could provide an alternative to current oncogenic pathways.
Mutations in the MAGEL2 gene lead to truncated, non-functional proteins accumulating in the cell nucleus, causing congenital malformations and intellectual disability. Researchers aim to develop patient-specific gene therapies to prevent altered protein synthesis and address this rare disease without treatment.
A large-scale study has identified over 2,000 genetic signals associated with blood pressure, providing a more detailed understanding of the complex trait. The findings lead to improved polygenic risk scores, which can predict blood pressure and hypertension risk.
The study provides a comprehensive understanding of TRAF7 syndrome, a rare neurological disorder characterized by cardiac, facial, and digital abnormalities. The research highlights the importance of comprehensive clinical assessment and proposes evidence-based guidelines for managing patients with TRAF7-related CAFDADD syndrome.
Scientists have identified the genetic mutation that causes SCA4, a progressive neurological disorder. The mutated gene ZFHX3 leads to impaired protein recycling in nerve cells, causing symptoms such as difficulty walking and balancing. This discovery opens the door to potential treatments for both SCA4 and another related form of ataxia.
A machine learning system called AI-MARRVEL, developed by Baylor College of Medicine, has shown promising results in diagnosing rare Mendelian disorders. The system consistently ranked diagnosed genes as the No. 1 candidate in twice as many cases than other benchmark methods.
Individuals at high genetic risk of obesity needed higher daily step counts to reduce obesity risk. Population-based recommendations may underestimate physical activity needed among those at high genetic risk.
Researchers analyzed Beethoven's DNA to investigate his genetic musical predisposition, finding an unremarkable polygenic score compared to population samples. The study suggests that while DNA contributes to musical skills, environment plays a key role in musical ability and engagement.
Researchers unveil innovative strategies to overcome metabolic constraints in CAR-T cell therapy, aiming to boost its efficacy in treating solid tumors. Metabolic interventions targeting immunosuppressive metabolites, metabolite uptake, and mitochondrial metabolism are proposed to enhance anti-tumor activity.
Researchers discovered two novel GNE gene mutations that may cause a rare blood disorder called macrothrombocytopenia. The mutations affect the synthesis of sialic acid, critical for brain development and angiogenesis. Further studies are needed to understand the mechanism underlying this disorder and explore therapeutic interventions.
Researchers propose combining osimertinib with gefitinib to increase progression-free survival rates in EGFR-mutant lung cancer patients. A comprehensive PC approach could dramatically boost PFS for 80% of patients, eliminating harm and improving treatment outcomes.
Researchers created a first-of-its-kind super minigene to study the Survival Motor Neuron 2 (SMN2) gene, which causes spinal muscular atrophy. The compact model allows scientists to see how changes play out across the entire gene expression process.
Researchers optimized polygenic risk scores using ancestrally diverse genomic data to improve accuracy across diverse populations. The recalibrated tests provided a more accurate assessment of disease risk for individuals with varied ancestral backgrounds.
Recent literature review highlights epicardial adipose tissue, chronic inflammation, and autonomic nervous system imbalance as key AF pathogenic factors. Clinical management trends include wearable devices for continuous monitoring and the 4S-AF scheme for comprehensive assessment.
Researchers from Osaka University have identified erythromycin as a potential treatment for myotonic dystrophy type 1, a genetic disease characterized by progressive muscular weakness. The antibiotic showed acceptable safety and tolerability profiles in a phase 2 clinical trial, with some patients experiencing significant improvements ...
A team of international researchers has reported the first high-resolution images and structural details of the human genetic element LINE-1, which is implicated in various diseases. The study provides a target for potential new treatments, particularly for cancer, autoimmune disorders, neurodegeneration, and even aging.
A single-nucleotide polymorphism in non-coding RNA AMANZI drives the activation and deactivation of interleukin-1β, affecting the immune response to tuberculosis vaccination. The discovery opens up new possibilities for guiding the immune system.
A research team identified two different RAD50 variants in a patient with progressive bone marrow failure and immunodeficiency, leading to loss of function of the MRN complex. The findings suggest that RAD50 deficiency/Nijmegen breakage syndrome-like disorder is characterized by growth retardation and microcephaly.
Researchers have identified a gene called LHPP that interacts with stress to mediate aspects of treatment-resistant MDD in an animal model. Increased expression of LHPP aggravated depression-like behaviors by dephosphorylating two protein kinases, CaMKIIα and ERK.
A study of 2,361 mother-child pairs found that prenatal lead exposure is associated with an increased risk of cognitive developmental delay (CDD) in children, particularly those with a high genetic risk. This suggests that integrating genetic factors into assessments of CDD risk may improve children's cognitive ability.
A team of researchers discovered two genetic genes that predispose people to Raynaud's phenomenon: ADRA2A and IRX1. These variations cause small blood vessels to contract in response to stress or cold, leading to vasospasms and limited blood flow. The study could lead to effective treatments for the condition.
Researchers discovered that a mutation in the gene ACTA2 causes moyamoya disease and strokes in young children. The mutation leads to dysfunctional smooth muscle cells in arteries, resulting in blockages and increased risk of stroke. Understanding this mechanism could lead to new treatments for moyamoya disease.
Research identifies genetic overlap between schizophrenia and cardiovascular disease (CVD) risk factors, particularly smoking initiation and BMI. The study found that people with schizophrenia have a genetic propensity to smoking and a reduced genetic risk of obesity.
Researchers identified distinct genomic characteristics that impact prognosis for patients with triple negative apocrine carcinoma. The study confirmed a five-year disease-free survival rate of 92.2% for these patients, significantly higher than those diagnosed with other types of TNBC.
Researchers discovered that a small subpopulation of AIB1-expressing cells in breast cancer enables invasion and metastasis. The study suggests that these subpopulations play a crucial role in tumor growth and spreading to distant sites.
A team of Chinese and UK researchers has identified superoxide dismutase 1 (SOD1) as a potential target for reversing drug resistance in ovarian cancer. By using nanoparticles to deliver siRNA that reduces SOD1 levels, the study showed reduced growth and decreased resistance to cisplatin in female mice.
A genetic study of 44,396 British people of Bangladeshi and Pakistani ancestry found that 57% have a genetic variant that renders clopidogrel ineffective in preventing recurrent heart attacks. People with two loss of function variants were more than three times more likely to experience recurrent heart attacks due to treatment failure.
Researchers are studying the characteristics of fragile X-associated tremor ataxia syndrome (FXTAS), aiming to develop treatments for this debilitating condition. The study focuses on understanding the phenotype of FXTAS, including its progression and impact on males and females.
Researchers identified novel genetic associations between AD and modifiable risk factors, including high HDL cholesterol concentrations and systolic blood pressure. These findings may inspire new drug targets and improved prevention strategies for AD.
Researchers have created the first humanized mouse model for Congenital Adrenal Hyperplasia, a rare genetic disease affecting 1 in 15,000 births. The mouse model accurately mimics human symptoms and allows for testing of novel treatments and stem cell therapies.
Scientists have developed a new method to deliver genetic information to stem cells using nanoparticles coated with a specific polymer, enabling more efficient control over cellular differentiation. This innovation has the potential to improve the efficiency and effectiveness of regenerative medicine treatments.
A new study reveals the mechanism of BRCA2's DNA repair function, understanding its role in breast and ovarian cancer development. The findings also provide insights into developing targeted cancer therapies by inhibiting DNA repair mechanisms.
Experts advocate for genetic testing to identify MS patients at high risk of developing progressive multifocal leukoencephalopathy (PML), a devastating side effect from medications. The availability of such testing could allow physicians to use alternative therapies, reducing the risk of PML.
Researchers have successfully used AAV1.NT-3 gene therapy to improve muscle physiology and prevent age-related sarcopenia in mice. The treatment resulted in restored muscle mass, strength, and neural connections, offering a potential new option for managing this debilitating condition.
Researchers at Martin-Luther-Universität Halle-Wittenberg have found a new treatment for ADCY5-related dyskinesia using the asthma drug theophylline. The treatment has been shown to reduce symptoms and improve quality of life in affected individuals.
The HALP score, a novel immune-nutritional marker, has been linked to prognostic ability in different cancer types. It integrates indicators of immune status and nutritional status, showing promise as a cost-effective biomarker.
Researchers developed a novel technology to engineer proteins targeting specific DNA sequences, offering a new approach to gene therapies. The system generates engineered zinc fingers that bind to any given sequence of DNA, potentially treating diseases caused by genetic mutations.
Researchers genetically engineered mitochondria to convert light energy into chemical energy, increasing ATP production and lifespan by 30-40%. The study provides new insights into mitochondrial function and offers a platform for studying age-related diseases.
Research confirms a strong link between four genetic mutations and progressive multifocal leukoencephalopathy (PML), a rare but often fatal brain infection. Patients with these variants are at an increased risk of developing PML, highlighting the potential for genetic screening to reduce disease risk.
Researchers at Uppsala University discovered a connection between loss of the Y chromosome (LOY) and the risk of severe COVID-19 in men. LOY was linked to impaired lung function, blood clots, and a higher risk of death.
Researchers investigate how lung cancers evade the immune system to develop more effective immunotherapy treatments. The study aims to uncover a new way lung cancers disguise themselves from the immune system, potentially leading to improved treatment outcomes.
A team at the University of Exeter has found genetic changes in a region that controls the activity of the genome, turning on or off genes, which led to the discovery of the cause of Congenital Hyperinsulinism. This breakthrough could unlock new causes of rare diseases and pave the way for improved treatments.
Researchers at King's College London discovered nine genes associated with metabolic disease risk in fat tissue. The study found that diet can affect belly fat accumulation through epigenetic changes.
A new study suggests that the relationship between siblings' educational outcomes is influenced by both genetic and environmental factors. The research found that individuals with older siblings are more likely to excel academically, highlighting the complex interplay between nature and nurture.
Researchers found that different lineages of Cryptosporidium parvum are increasingly exchanging their DNA, which helps the parasite evolve faster and potentially result in more virulent strains. The study suggests that globalization and close contact with animals increase the rate of genetic exchange.
Researchers have developed an app to help doctors identify patients with chronic lymphocytic leukemia (CLL) at risk of developing infections, allowing for earlier treatment. The app uses blood test results and genetic data to predict patient risk, improving treatment outcomes and reducing pressure on the healthcare system.
Researchers evaluate Jumpcode Genomics CRISPRclean technology for transforming pandemic response through highly sensitive testing. The assay quickly identifies variant strain types and individual host responses in a single workflow.
A new study published in PLOS Genetics found that a person's height impacts their risk for multiple diseases, including atrial fibrillation and varicose veins. The study also uncovered associations between greater height and a higher risk of peripheral neuropathy and skin bone infections.
A new type of RNA structure targeting tool has been developed to specifically recognise unusual four-strand RNA structures associated with diseases such as cancer and neurological disorders. The L-RNA aptamer-based rG4 targeting approach shows promise for developing new therapeutic tools.
The American College of Medical Genetics and Genomics has released a new Clinical Practice Resource to guide the treatment of patients with hearing loss. The resource offers information on causes, presentations, and approaches to clinical evaluation and genetic testing.
A new study has identified a strong predictor for the development of clinically important liver problems in people with Hemochromatosis. Researchers found that 84% of those with advanced liver fibrosis also had arthritis, highlighting the importance of early detection and monitoring.
A long-term study of FXTAS carriers has identified key indicators of disease progression, including cognitive decline and motor symptoms. Researchers hope to develop a validated tracking tool to monitor premutation carriers and patients with FXTAS.
A recent brain imaging study has found evidence of weakening connections between key brain areas in adolescents at high genetic risk of developing bipolar disorder. This study suggests that early intervention strategies may be effective in preventing the progression towards major changes in the brain.
A new study by the Princess Máxima Center for Pediatric Oncology has found that one third of children with a Wilms' tumor, the most common form of childhood kidney cancer, have a hereditary predisposition. This discovery has led to the implementation of extensive genetic testing for all children with this disease in the Netherlands.
Researchers have discovered how long-term benzodiazepine use damages brain synapses, leading to cognitive decline. Benzodiazepines, commonly used for anxiety and sleep disorders, trigger microglial activation, resulting in the degradation of neural connections.
A recent review highlights the effects of different intestinal bacteria on colorectal cancer, exploring new therapies for disease prevention and treatment. Beneficial probiotics, such as Akkermansia muciniphila and Lactobacillus rhamnosus GG, exhibit anticancer properties and reduce CRC cell proliferation.
A new DNA benchmark, developed by NIST and collaborators, enables more accurate detection of genetic variants linked to diseases such as spinal muscular atrophy. The benchmark, based on HiFi sequencing technology, helps labs and clinics sequence genes with high accuracy, critical for disease diagnosis and treatment.