Articles tagged with Genetic Disorders
Researchers discovered a molecular switch that prevents Huntington's disease from developing in mice, providing new hope for treating the genetic disorder. The study suggests that phosphorylation of specific amino acids near the huntingtin protein can prevent the onset of symptoms.
An international team of researchers has identified a gene associated with DFN2, a rare form of progressive deafness that primarily affects males. The discovery offers therapeutic implications and may lead to treatments for other types of deafness.
Research found four alterations in RORB gene associated with pediatric bipolar disorder, linking circadian rhythm abnormalities to the condition. The study suggests that clock genes may be important candidates for further investigation into bipolar disorder's molecular basis.
A recent study published in Neurology reveals that nearly 42% of participants with frontotemporal dementia had some family history, while only 10% were affected by an autosomal dominant gene. The study also found that behavioral problems are more likely to be hereditary than language problems.
Researchers at Caltech have shown that a highly specific intrabody can stall the development of Huntington's disease in various mouse models. The treatment successfully attenuated symptoms and increased life span by targeting an amino-acid sequence unique to the mutant huntingtin protein.
Researchers developed a molecular diagnostic tool that uses targeted genetic sequencing to screen for variations in 362 genes associated with mitochondrial disease. The new method accurately identified the mutation underlying each patient's condition, increasing sensitivity for diagnosing previously unknown genes.
Researchers have identified childhood risk factors for developing substance use disorders, including increased body sway and reduced P300 amplitude. These early markers can help predict an individual's likelihood of developing a substance use disorder by young adulthood.
Classifying molar pregnancy is crucial for clinical treatment due to increased risk of persistent gestational trophoblastic disease. Researchers used STR genotyping and p57 immunohistochemistry to differentiate complete hydatidiform moles from partial moles and non-molar specimens.
A new study found that carriers of Gaucher disease face a significantly higher risk of developing Parkinson's disease, with the risk being 5 times greater than the general public. The study also found that GBA alterations increase the likelihood of early disease onset.
Researchers at Baylor College of Medicine have identified a potassium channel KvLQT as the molecular trigger for sudden death in epilepsy. This discovery could lead to a simple genetic screening test to identify patients at risk, offering effective treatments such as beta blockers and cardiac pacemakers.
A Stanford University researcher has pinpointed the mechanism by which a gene associated with both autism and schizophrenia influences behavior in mice. The study identified behavioral changes in the mice similar to some symptoms of autism and schizophrenia, highlighting the complexities of cognitive disorders.
Researchers identified a genetic defect that selectively affects white blood cell production, potentially predisposing individuals to inflammatory bowel disease. The study's findings may provide insight into why IBD develops and help inform future treatment strategies.
A new type of genetic change, a second copy of an entire gene, has been identified as a cause of familial chordoma, a devastating and rare form of cancer. The T (Brachyury) gene duplication was found in patients with the disease, but its exact mechanism is unknown.
Dr. Roger Rosenberg has been awarded the first Medal for Scientific Achievement by the World Federation of Neurology for his contributions to Alzheimer's disease research. The award recognizes his work on molecular genetics and a vaccine against the disease.
Researchers identified two chemicals that correctly process essential proteins in cells, potentially leading to new treatments for cancers and neurodegenerative diseases. This breakthrough could benefit millions of people worldwide suffering from genetic disorders, including ataxia-telangiectasia and muscular dystrophy.
Scripps Research scientists successfully corrected a genetic defect in mice with cystinosis, a rare and devastating disorder. The treatment involved bone marrow stem cell transplantation, which significantly reduced cystine levels and improved symptoms.
Researchers at Mayo Clinic have discovered a single gene promoting development of essential tremor in some patients and Parkinson's disease in others. The study found a significant association between the LINGO1 gene variant identified in Iceland to both disorders, with mutations potentially responsible for five percent of patients.
A new candidate gene for Specific Language Impairment has been identified on Chromosome 6, associated with variability in language, speech, and reading abilities. The findings suggest multiple genes contribute to language impairment, overlapping strengths or deficiencies across speech, language, and reading.
Researchers discovered that genetic material regulators beyond the SHOX gene itself play a crucial role in developing growth disorders. A study of 893 patients with short stature found that enhancer mutations, far from the affected gene, can cause the same clinical symptoms as direct gene mutations.
The study uncovered the unlikely genetic suspect, FOXC1, which critically contributes to Dandy-Walker malformation, a brain defect causing mental retardation and motor delays. The discovery provides new mechanisms and potentially improves treatment for the disorder, offering insights into embryonic brain development.
Researchers from Université de Montréal and McGill University have engineered an enzyme that resists harmful agents like methotrexate, a breakthrough in treating genetic diseases. The study's discovery provides new avenues for therapies to combat conditions like leukemia.
A study analyzing rare genetic disorders suggests that maternal and paternal genes continue to interact well into childhood, potentially influencing the pace of growth and sexual maturity. This ongoing interplay may be responsible for humanity's unusual extended childhood and unique life history patterns.
Researchers at Mayo Clinic have discovered a mutated gene linked to restless legs syndrome, affecting 5-11% of the population. The study suggests that this genetic mutation may be a key factor in understanding the condition, which causes unpleasant sensations in the legs at rest.
A study at Penn State has identified over 16,000 active genes in mouse brains during embryonic development and post-natal stages. These genes are linked to cognitive and sensory abilities and may hold the key to developing treatments for neurological disorders such as autism and Alzheimer's disease.
Researchers at Baylor College of Medicine have identified a single gene mutation responsible for catastrophic epilepsy, a condition marked by severe muscle spasms, persistent seizures, and mental retardation. The discovery provides a new model for studying the disease and has sparked hope for potential treatments.
Researchers found rare copy number variations in genes of children with autism spectrum disorders but not healthy controls. The study identified two novel genes, BZRAP1 and MDGA2, thought to be important in synaptic function and neurological development.
Researchers identified a small set of genes responsible for mental retardation by comparing human DNA with mouse genome disruption data. The study found that genomic deletions and duplications frequently cause the disorder, enabling genetic testing and diagnosis.
Researchers at Baylor College of Medicine have identified the FOXF1 transcription factor gene as responsible for a rare and deadly developmental disorder of the lungs, alveolar capillary dysplasia with misalignment of pulmonary veins. The discovery may lead to easier diagnosis and counseling for families affected by the disease.
Researchers have successfully generated genetically corrected blood cells from skin cells of Fanconi anemia patients using gene therapy and cell reprogramming techniques. This breakthrough could lead to the development of a new treatment for the disease, which affects the bone marrow and causes a lack of white blood cells.
A recent study in PLoS Biology has identified the crucial role of cohesin proteins in human gene expression, shedding light on Cornelia de Lange syndrome. The research found that dysregulation of cohesin affects hundreds of genes, leading to unique gene expression profiles.
Researchers at UCLA have discovered a link between a variant of the CACNA1G gene and increased autism risk in boys. The study found that nearly 40% of the population carry the common variant, which increases the correlation to autism spectrum disorder.
A UNC-Duke study found that impaired brain plasticity in mice with Angelman syndrome is linked to severe cognitive deficits. The researchers discovered a latent ability for brain cells to express plasticity, which could lead to new treatments or a cure for the disorder.
Researchers identify protein-protein interaction as a key factor in vision loss among people with genetic diseases, including Bardet-Biedl Syndrome. The study provides a blueprint for unraveling variations in other genetic diseases.
The March of Dimes has awarded a $250,000 prize to Kevin P. Campbell and Louis M. Kunkel for their pioneering work identifying the genes and proteins that cause muscular dystrophy. Their research has led to better diagnostic tools and potential treatments, improving the lives of over 250,000 Americans affected by the disorder.
A recent genetic study has confirmed the immune system's role in narcolepsy, revealing that autoimmunity plays a crucial part in the disorder. The study found unique variants of genes HLA-DQB1*0602 and TCRA associated with narcolepsy-cataplexy.
Researchers have identified a genetic variant that impairs communication within the brain, increasing the risk of schizophrenia and manic depression. The study found altered brain activity patterns, particularly between the dorsolateral prefrontal cortex and other regions.
Two studies identify genes that may contribute to autism, including a region of chromosome 5 associated with neuronal cell-adhesion molecules. These findings suggest a significant role for genetics in the development of autism, potentially leading to new treatments.
Researchers at UCLA have identified a gene mutation responsible for short-rib polydactyly syndrome, a deadly disorder that kills newborn babies. The discovery will allow for earlier testing of embryos at risk for the disease, potentially saving lives and reducing the emotional burden on families.
Researchers at Vanderbilt University Medical Center discovered that the clinically available drug flecainide prevents potentially lethal arrhythmias in patients with CPVT. In two patients, flecainide prevented exercise-induced ventricular arrhythmias and allowed them to live normal lives.
A groundbreaking study at Brandeis University has shed light on a crucial step in the complex process of genetic encoding for the first time. The researchers report that they were able to crystallize a large complex of a macromolecular machine in the human cell and determine its structure, zeroing in on the process of RNA splicing.
Dr. Roberta A. Pagon, a renowned medical geneticist, has received the March of Dimes/Colonel Harland Sanders Award for her groundbreaking work in developing the public database genetests.org, which helps doctors analyze genetic tests for making informed medical decisions.
Recent studies in epigenetics provide new understanding of how environmental factors influence brain function and behavior, potentially explaining the complex nature of mental illness. Epigenetic changes can be long-lived and influenced by life experiences, psychotropic drugs, and psychotherapy.
Scientists at Johns Hopkins Medicine used genome scanning to locate a mutation in the PALB2 gene, responsible for initiating hereditary pancreatic cancer. The discovery highlights the value of personalized genome sequencing in identifying disease-causing mutations.
Researchers at UMMS discovered a new gene whose mutations cause familial amyotrophic lateral sclerosis (ALS), a fatal neurological disorder. The FUS/TLS gene mutation is estimated to account for 5 percent of inherited ALS cases and implicate defective pathways previously identified in other genetic forms of ALS.
Researchers identified a novel gene, FUS/TLS, associated with inherited amyotrophic lateral sclerosis (ALS), the fourth gene implicated in familial forms of the disease. Mutations in this gene lead to abnormal protein deposits in motor neurons and are linked to varying inheritance patterns and severity.
A specific gene called protein kinase C beta (PKC beta) plays a crucial role in the weight-gain response to a high-fat diet. Mice genetically engineered to lack PKC beta showed minimal health effects and resisted fat-induced obesity, insulin resistance, and liver damage. The study suggests that blocking this gene could be a therapeutic...
Nearly all US babies are now screened for 21+ life-threatening disorders, thanks to increased mandates and advocacy efforts. This expansion has significantly improved public health outcomes.
Researchers at the University of Montreal have identified gene mutations in the SYNGAP1 gene that affect learning and memory in children with non-syndromic mental deficiency. The study found that three percent of affected children had new deleterious mutations, leading to delays in language and mental development.
Researchers identified three genetic variants associated with delusions in people with schizophrenia, located within the neuregulin 3 gene on chromosome 10. The study suggests that this gene may contribute to the development of delusions and other symptoms of the condition.
Researchers suspect a novel gene is causing restless legs syndrome in a large family study, with 30 relatives affected and 60% female prevalence. The discovery could lead to breakthroughs in understanding the disorder and developing new treatments.
Researchers at CAMH have detected evidence that DNA is not the only carrier of heritable information, with epigenetic factors playing a significant role. This finding challenges traditional genetics principles and may provide new insights into human disease causes.
A large-scale study of 9 million Swedish individuals reveals that bipolar disorder and schizophrenia share common genetic causes, with heritability rates of 64% and 59%, respectively. This finding challenges the long-held distinction between the two conditions, suggesting a reappraisal of their diagnostic entities.
Researchers at McGill University and the MUHC have identified a gene crucial for vitamin B12 metabolism, shedding light on a rare genetic disorder. The discovery may lead to earlier diagnosis and treatment options for patients with cblF combined homocystinuria and methylmalonic aciduria.
A new pharmaceutical developed by McGill University researchers may allow PKU sufferers to eat a normal, protein-rich diet, avoiding the need for severe protein restrictions. The treatment, which involves enzyme therapy, aims to reduce phenylalanine levels in the blood and alleviate symptoms such as agoraphobia.
A Mayo Clinic-led international consortium discovered a genetic defect in the dynactin complex that may help explain neurodegenerative diseases like Parkinson's and amyotrophic lateral sclerosis. The mechanism implicated in Perry syndrome, a rare disorder, may also shed light on common depression and sleep disorders.
Decreasing FKBP12 gene activity in mice disrupted neuron-to-neuron communication, leading to enhanced long-term potentiation and repetitive behaviors. The study provides insight into the molecular mechanisms underlying neurodevelopmental disorders such as autism spectrum disorder and obsessive-compulsive disease.
Researchers at UCSF Ernest Gallo Clinic and Research Center have identified a DNA sequence variation on chromosome 15 associated with the level of response to alcohol. This finding could signal the genetic factors that affect alcohol abuse, and may help develop targeted treatments.
Researchers identified 11 new gene sites associated with cholesterol and triglyceride levels, bringing the total to 30 lipid-associated genes. Common variations in these genes can significantly influence blood lipid levels, potentially identifying individuals at higher risk for heart disease.
A UCLA study shows that microscopic crystals in the inner ear form sound and gravity sensors through cilia movement. The research provides new clues for treating vertigo and hearing disorders related to cilia function, offering a potential gene target for therapy.
Researchers at Indiana University have created a comprehensive map of genes likely involved in bipolar disorder, identifying hundreds of genes that contribute to the illness. The study also lays the groundwork for personalized treatments and preventive measures using genetic risk scores.