Articles tagged with Genetic Disorders
A novel genetic disorder has been identified in 21 patients from around the world, characterized by neurodevelopmental and craniofacial symptoms. The disorder is caused by rare variants in the MAP4K4 gene, which is involved in multiple signaling pathways, including the RAS pathway.
Research discovers that reduced levels of Hsp47 protein can prevent blood clots in humans, pigs, and bears, even when immobile for extended periods. The study's findings could lead to new medicines for people with inherited blood clotting disorders.
A nationwide UK research study has diagnosed around 5,500 children with severe developmental disorders, identifying the genetic cause of their condition. The Deciphering Developmental Disorders study used genomic sequencing technology to provide diagnoses for families from across the UK and Ireland.
Researchers found that a mutation in the SKD3 enzyme can cause 3-methylglutaconic aciduria (MGCA7), a genetic disorder associated with variable neurologic deficits and low neutrophil count. The mutation leads to protein aggregation and inactivates the enzyme, disrupting mitochondrial function.
Researchers developed an optimized genome-editing method that vastly reduces mutations, enabling more effective treatment of genetic diseases. The new technique uses a 'safeguard gRNA' to control DNA cleavage, reducing off-target effects and cytotoxicity.
Tulane University researchers discovered a possible genetic cause of hypermobility and hypermobile Ehlers-Danlos syndrome, linking it to folate deficiency due to the MTHFR gene variation. Elevated folate levels in blood tests can aid in diagnosis, while methylated folate has shown promising treatment results for patients.
A survey of allergists and immunologists reveals that diagnosing and treating hereditary angioedema can be challenging, particularly for patients in rural areas. Patients living in rural areas are more likely to face barriers to care, including longer travel times to reach medical facilities.
A recent study revealed the key to a protein that commonly causes blindness, including its role in transporting toxic compounds out of the eye. Mutations in this protein can cause vision loss in diseases like Stargardt disease, which affects approximately 30,000 people nationwide.
A new American Heart Association scientific statement provides guidance on interpreting incidental genetic variants associated with cardiovascular disease risk. The statement aims to determine whether a variant truly carries a health risk and suggests next steps for individuals and healthcare professionals.
Researchers have discovered a novel medication that effectively treats a rare hereditary muscle disease causing complete immobility and death. The treatment has also shown promise in treating severe statin-associated myopathy, with improved symptoms in patients awaiting treatment.
A protein called PI3K plays a crucial role in immune cell function, and genetic variations disrupting its signalling have been identified as the root cause of two immunodeficiency disorders. The study reveals how minor disruptions in immune cell signalling can lead to immune deficiency or dysfunction.
Researchers have successfully restored vision in mice with retinitis pigmentosa using a new CRISPR-based genome editing technique. The PE SpRY system corrected genetic mutations and restored normal electrical responses to light, preserving vision into old age. This breakthrough offers potential for treating inherited blindness.
The ACMG Foundation presented four Next Generation Fellowship Awards to Amélie Pinard, Mina Tabrizi, Herodes Guzman, and others. These awards recognize the support of Bionano Genomics and Sanofi and aim to advance medical genetics and genomics specialties.
Dr. Alexander M. Holtz received the award for his published article on heterozygous variants in MYH10 associated with neurodevelopmental disorders and congenital anomalies. The study highlights primary cilia-dependent defects in Hedgehog signaling, shedding light on a previously unknown autosomal dominant condition.
Molecular biologist Shixin Liu is recognized for developing cutting-edge biophysical tools to visualize and understand biomolecular machines. His work aims to establish a quantitative input-output relationship between environmental stimuli and gene expression profiles.
A cross-disciplinary team developed a convolutional neural network to analyze microscopy images of chromosomes with cohesion defects. The algorithm achieved 73.1% accuracy in classifying new images, streamlining experiments with chromosome analysis.
Children with Down syndrome are highly vulnerable to developing aggressive leukaemia due to a defect in the RUNX1 gene, which regulates blood cell formation. Researchers have identified a specific variant of the gene that promotes leukaemia development and discovered potential therapeutic approaches to correct this malfunction.
Researchers have identified a new method to predict which sarcoma patients will benefit from a potential new treatment. By inhibiting the plk1 gene, they were able to target and slow down the growth of sarcoma cells. This breakthrough could lead to improved treatment options for sickest sarcoma patients in 5-10 years.
A Geisinger study supports genetic testing as a standard of care for people with cerebral palsy, similar to other neurodevelopmental disorders. The analysis found similar genetic diagnostic yield for CP and NDD, suggesting earlier identification of genetic changes and potential treatment through genetic testing.
Researchers developed a microfluidic model of vascular malformation caused by PIK3CA mutation, allowing them to study disease mechanisms and test treatment efficacy. The model successfully replicated the disease's manifestations and responded to alpelisib, a newly approved PIK3CA inhibitor.
Wilate prophylaxis showed an 84% reduction in bleeding episodes and improved quality of life in children and adults with all types of VWD. The treatment reduced the frequency of bleeding episodes by lowering the mean total annualized bleeding rate compared to on-demand treatment.
Archaeologists have discovered the earliest example of angular notched trephination, a type of cranial surgery, in the Ancient Near East. The discovery, made at Megiddo, Israel, suggests that one brother may have had leprosy, making them potentially among the earliest documented examples of the disease.
Researchers discovered that administering oxygen during episodes of dystonia significantly reduces symptoms and improves quality of life. The study found that rapid oxygen delivery interrupts cortical spreading depression, a phenomenon linked to hypoxia and triggering the condition.
Researchers at the National Institutes of Health have discovered a possible cause for rare genetic disorders, facioscapulohumeral muscular dystrophy (FSHD) and arhinia. The toxic protein DUX4, overproduced in FSHD patients, not only kills muscle cells but also prevents the development of the human nose.
A recent study finds a strong association between hypertensive disorders of pregnancy and an increased risk of coronary artery disease and stroke. The study suggests that hypertensive disorders in pregnancy can be classified as risk factors for cardiovascular disease, highlighting the importance of prenatal care.
A new genetic test can identify dogs at risk of a potentially deadly disorder resulting in excessive bleeding and bruising after surgical procedures. The DEPOHGEN test will allow for preventative treatment by administering antifibrinolytic drugs to dogs with the mutation before surgery.
Scientists have successfully corrected limb length in a mouse model of FZD2-associated autosomal dominant Robinow Syndrome, a genetic disorder that affects skeletal growth and development. The treatment involves using a drug that stimulates the signalling pathway, resulting in significantly longer limbs than untreated mice.
A new nonhuman primate model of Usher syndrome has been confirmed, providing hope for the development of a treatment for this leading cause of blindness-deafness. The model, created using CRISPR/Cas9 technology, exhibits symptoms similar to those experienced by humans with the condition.
A team of researchers discovered that a mutation in the HMGB1 protein causes a rare disorder with severe malformations, suggesting a link between protein droplets and genetic disease. The study's findings could have implications for understanding congenital malformations, common diseases, and cancer.
Researchers discovered a causal mechanism behind BPTA syndrome by identifying a change in the HMGB1 protein that disrupts cellular self-organization. This disruption leads to developmental disorders and predisposition to cancer, with hundreds of comparable genetic changes associated with various conditions.
Researchers at USC Keck School of Medicine have identified two new avenues for treating diverse forms of ALS by suppressing genes and inhibiting proteins. The findings suggest that targeting SYF2 gene suppression and PIKFYVE kinase inhibition may lead to broadly effective treatments for the disease.
A team of scientists from ETH Zurich has developed a new diagnostic strategy for methylmalonic aciduria (MMA), a rare metabolic disorder affecting approximately one in 90,000 newborns. The approach, which considers genetic, RNA, protein, and metabolomics data, correctly diagnosed 84% of patients examined.
Researchers have solved an 80-year-old medical mystery that causes kidney damage in children and can be fatal in babies. They discovered a gene mutation is the primary cause, but found that around 10% of patients without the mutation still experience symptoms.
In a mouse model of laser-induced CNV, RORα expression was highly increased in the choroidal/RPE complex post-laser, while loss or inhibition of RORα worsened CNV with increased lesion size and vascular leakage. RORα negatively regulates pathological CNV development by modulating angiogenic response and inflammatory environment.
Researchers found that abnormal methylation processes lead to disruption of gene expression essential for brain development in people with Williams syndrome. The study suggests targeting treatments to correct these disruptions.
A study from Japan found that variations in psychiatric diagnoses across different cultures can affect the efficacy of antipsychotics in clinical trials. Researchers analyzed data from 28 double-blind randomized trials and found that psychotic features were associated with varying therapeutic responses to antipsychotic medications.
Researchers identified the molecular mechanism underlying Weiss-Kruszka syndrome, a rare neurodevelopmental disorder characterized by craniofacial anomalies and autistic features. The study reveals that the ZFP462 gene mutation leads to a failure to safeguard neural lineage specification during early embryonic development.
Researchers found that early prenatal alcohol exposure changes gene function and epigenome in placenta and human embryonic stem cells. These changes are associated with altered DNA methylation patterns, particularly in genes linked to nervous system development, such as DPPA4 and FOXP2.
A recent study published in Frontiers in Cell and Developmental Biology has found that the unique checkerboard pattern of cells in the organ of Corti is essential for proper hearing. The researchers discovered that when hair cells adhere to each other abnormally, it leads to apoptosis and a decrease in hair cell numbers, resulting in h...
Researchers discovered that radiation damage to paternal DNA is passed on to offspring through a highly error-prone repair mechanism. This leads to structural changes in the paternal chromosomes and causes developmental defects. Histone proteins play a crucial role in shielding damaged chromosomes from accurate repair.
A recent analysis of Psychiatric Genomics Consortium datasets found genetic correlations between psychiatric disorders differ between European and East Asian populations. Japanese psychiatrists tend to diagnose bipolar disorder less frequently in patients with psychotic features.
The special issue highlights innovation across various stakeholders in newborn screening, including researchers, healthcare professionals, and families. Key findings include the development of novel technologies to screen, diagnose, and treat newborns, as well as long-term follow-up studies and NBS expansion.
A Geisinger study of over 90,000 patients confirmed a strong link between genetics and neuropsychiatric disorders. The research revealed that approximately one in 100 participants carried a rare gene variant increasing the risk for conditions like schizophrenia and autism spectrum disorder.
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.
The NIH's All of Us Research Program has returned genetic health-related DNA results to over 155,000 participants, detailing increased risk for specific health conditions and medication processing. Participants can choose to receive tailored reports, including a Hereditary Disease Risk report and a Medicine and Your DNA report.
Researchers from Japan have developed an RNA interference method using antisense oligonucleotides to correct a genetic defect in Fukuyama Muscular Dystrophy. This approach has shown promise in treating patients with the disease, which is characterized by generalized muscle weakness and intellectual disability.
A new study pinpoints the first-ever domestication of cats to nearly 10,000 years ago in the Fertile Crescent region. Genetic analysis reveals that humans' transition from hunter-gatherers to farmers sparked the bond between humans and rodents-eating cats, leading to their migration with humans worldwide.
Researchers have engineered a family of adeno-associated viral vectors that can deliver cargo to the primate brain, offering a safer and more efficient way to treat genetic diseases. The PAL family of AAVs has been shown to be three times better at delivering their cargo into the brain than current leading AAV delivery vehicle AAV9.
A study of 1.5 million children found no association between prenatal benzodiazepine exposure and increased risks of autism spectrum disorder or attention-deficit/hyperactivity disorder. The results challenge current assumptions about maternal benzodiazepine use and neurodevelopmental disorders.
A Rutgers-led study found that a gene mutation associated with autism causes an overstimulation of brain cells, disrupting the normal information flow. The researchers used human stem cells and transplanting them into mouse brains to understand how the mutation affects brain development.
Researchers have developed mini eyes, or organoids, from stem cells donated by patients with Usher syndrome. These mini eyes allow scientists to study light-sensing cells and understand the development of blindness in the disease.
Researchers developed a simple urine test to measure cystic fibrosis severity and assess treatment effects. The test reveals the extent to which new treatments are beneficial, correlating with disease severity and lung function.
Researchers found that deleting a copy of the Arid1b gene in specific brain cells decreased inhibitory signaling, leading to changes in synaptic properties and connectivity. The study suggests that this gene may be a key target for therapeutics in treating autism spectrum disorder.
A fetus with infantile-onset Pompe disease has been successfully treated in utero using enzyme replacement therapy, resulting in normal cardiac and motor function. The child is now thriving as a toddler, meeting developmental milestones after receiving postnatal enzyme therapy at a pediatric hospital.
A new study by UCL researchers found that tailoring whole genome sequencing analysis to individual patients can double the diagnostic rates of rare diseases. The personalised approach increased the diagnostic rate from 16.7% to 31.4%, detecting potential disease-causing variants in a further 3.9% of patients.
Researchers have developed a new gene therapy that selectively targets overactive brain cells, reducing excitability and suppressing seizures in mice. The treatment shows promise for treating neurological disorders such as epilepsy, Parkinson's disease, schizophrenia, and pain disorders.
A Dartmouth study reveals that disruptions in the mTORC1 pathway can rescue neuronal overgrowth and synapse function dysregulated by Pten loss, potentially offering new treatments for autism spectrum disorders. The research team also found that administering Rapamycin to children showed some benefit to symptoms of autism.
Researchers discovered a link between reduced protein synthesis and Feingold syndrome type 1, a rare genetic disorder. The study suggests that a nutritional supplement may help reverse this decrease, potentially alleviating intestinal symptoms in patients with the condition.
Johns Hopkins Medicine researchers have developed a novel genetic engineering approach to deliver gene therapy by utilizing a cell's natural process to
Researchers have developed a pioneering gene editing strategy that can repair faulty genes in immune cells, offering new hope for patients with conditions like CTLA-4 insufficiency. The technique uses CRISPR/Cas9 to target and correct the faulty gene, preserving important regulatory mechanisms.