Defective stem cell regulation throughout the body may contribute to learning and physical disabilities in people with Down syndrome. Reducing the expression of the Usp16 gene on chromosome 21 alleviates these defects and raises the possibility of an eventual therapy.
Researchers identified a compound that bolsters learning and memory in mice with a Down syndrome-like condition, enabling their cerebellum to grow normally. Further research is needed to understand the treatment's effects on learning and memory.
Researchers discovered a population of neurons in juvenile songbirds that enable the birds to recognize and learn vocal sounds. This finding could provide valuable insights into the neural mechanisms underlying human infant language acquisition.
A new gene therapy study, published in the Journal of Neuroscience, shows reversal of Rett symptoms in fully symptomatic mice by delivering a healthy MECP2 gene to cells throughout the body and brain. The treatment improved motor function, tremors, seizures, and hand clasping in 65% of cells.
Research reveals metabolic syndrome is common among liver transplant recipients, with exercise potentially reducing complications. The study suggests structured exercise programs during the first year after surgery could benefit patients.
A study found that nearly 59% of liver transplant patients experience metabolic syndrome, increasing heart disease and diabetes risks. Exercise intensity appears to be more important than duration in reducing metabolic syndrome complications.
Researchers screened genes for interactions with MECP2 and found five modifiers, including squalene epoxidase, which is drug-targetable. Statin drugs improved symptoms in Rett mice, performing better on mobility tests and living longer. However, further clinical trials are necessary to confirm efficacy and determine optimal treatment.
Researchers establish proof-of-principal for silencing extra chromosome 21 in cells, advancing translational research and surmounting major obstacle to 'chromosome therapy'. This breakthrough paves the way for studying cell pathologies and identifying genome-wide pathways implicated in Down syndrome.
Researchers at Stanford University School of Medicine have found that a formoterol, an asthma medication, strengthens nerve connections in the hippocampus and improves contextual learning in mice with Down syndrome. The study provides initial proof-of-concept for targeting beta-2 adrenergic receptors as a potential treatment strategy.
A 13-year Kaiser Permanente study found no association between vaccination and increased risk of Guillain-Barré syndrome. Researchers controlled for seasonality and analyzed 415 cases, finding only 25 patients had received a vaccine in the six weeks prior to illness onset.
Researchers developed a new risk assessment scoring system that better identifies high-risk adults, especially African Americans, for developing type 2 diabetes and heart disease. The scoring system considers sex and racial-ethnic differences, leading to earlier prevention and treatment.
Two papers reveal key domains of the MECP2 protein responsible for Rett Syndrome, including a methyl binding domain and an NCoR/SMRT Interaction Domain. Understanding these domains is crucial for developing effective treatments.
University of Michigan researchers have discovered how a defective gene in Down syndrome is regulated and its impact on neurological development. By studying fruit fly neurons, they identified two molecular pathways that converge to regulate the gene's abundance, offering a possible therapeutic approach to an aspect of the syndrome.
Researchers found that 30% of people with colorectal cancer did not act on genetic screening results, missing the diagnosis of Lynch syndrome. This study assesses the impact of routine screening for Lynch syndrome and highlights the importance of individuals taking action on test results.
New study finds Down syndrome neurons have reduced connections and high levels of oxidative stress, which could contribute to accelerated aging and increased susceptibility to Alzheimer's disease. Researchers hope to use these cells to test potential treatments for the condition.
A study found altered noncoding long chain RNA sequences in Rett Syndrome, which regulates gene expression and neurotransmitter function. The research could lead to new therapeutic strategies targeting lncRNA molecules or GABA receptors.
Children with fragile X syndrome showed significant improvements in general behavior, anxiety, and mood-related behaviors after three months of minocycline treatment. The study provides evidence for the efficacy of minocycline as a targeted treatment for fragile X syndrome.
A new study from Massachusetts General Hospital found that feeding intestinal alkaline phosphatase (IAP) to mice on a high-fat diet prevents the development of metabolic syndrome and reduces symptoms in those already affected. IAP blocks inflammatory factors, reducing systemic inflammation.
A new study links Lynch syndrome to a higher lifetime risk of prostate cancer and earlier age of onset, suggesting regular screening for men with the condition. The research estimates that men with Lynch syndrome have a 30% lifetime risk of developing prostate cancer, compared to 18% in the general population.
Researchers found that the extra chromosome 21 leads to reduced SNX27 protein levels, disrupting brain function. Restoring SNX27 in Down syndrome mice improves cognitive function and behavior.
Researchers found a high prevalence of low T3 syndrome before and after surgery, associated with unfavorable clinical outcomes and depressive symptoms. Perioperative low T3 syndrome was linked to a five-fold increased risk of poor outcome.
A meta-analysis found a small excess risk of Guillain-Barré syndrome associated with H1N1 flu vaccination. However, the benefits of vaccination significantly outweighed the risks. The study analyzed data from 23 million people vaccinated in the USA during the 2009 pandemic.
A study of 207,954 veterans found that PTSD significantly increases the risk of developing insulin resistance and metabolic syndrome. Early detection and treatment of these conditions can prevent long-term medical and psychiatric adverse events related to PTSD.
A recent review of 400 patients with Wolfram syndrome reveals that 15% do not meet current diagnostic criteria, highlighting the need for revision. The study proposes expanding the diagnostic criteria to identify two of four clinical features, which would diagnose up to 98% of patients.
Researchers found that mutations in MECP2 gene at specific locations influence disease symptoms and progression. Mice studies revealed a difference in symptoms between mice with mutations at amino acids 270 and 273.
Women with Lynch Syndrome have a 50-60% lifetime risk of developing colorectal cancer, but an 11% risk of breast cancer, 11% risk of kidney cancer, and 9% risk of bladder cancer. This study expands the spectrum of cancers associated with Lynch Syndrome.
A new case study by the University of Alberta's ISTAR Institute shows that fluency shaping can significantly improve a child's speech in individuals with Down syndrome who stutter. Four months of treatment led to a 98.6% improvement in Sarah's fluency, enabling her to function better socially and academically.
The Cleveland Clinic has developed a clinical screening program for Lynch syndrome, the most common genetic cause of colon cancer in adults. The program uses universal screening for colorectal cancers surgically removed at the clinic and successfully referred individuals whose tumors screen positive to genetics professionals.
Researchers discovered a novel syndrome caused by mutations in the ASXL3 gene, characterized by non-specific symptoms and intellectual disability. The study provides a molecular definition of this condition, which is difficult to distinguish from Bohring-Opitz syndrome, and highlights the importance of sharing genomic data.
A systematic review of medical literature on metabolic syndrome in children found that obesity, male sex, and increasing age are significant risk factors. The prevalence of metabolic syndrome increased substantially when comparing groups of overweight or obese children to whole populations of youths.
Researchers analyzed 48 studies on second trimester markers and found that most single markers have only a small effect on modifying the odds for Down's syndrome. However, some markers such as dilated brain ventricles, increased neck thickness, and absent nose bone significantly increase the risk by three- to four-fold.
A UCI study reveals that people with Down syndrome are more susceptible to other conditions due to a breakdown in energy metabolism within brain cells. This metabolic dysfunction contributes to the higher probability of Alzheimer's disease, diabetes and autistic spectrum disorders.
A new study found that six months of steroid treatment didn't reduce relapse rates or side effects in children with nephrotic syndrome, challenging previous assumptions about optimal treatment strategies. The research highlights the need for new treatment strategies to prevent frequent relapses in this disease.
A new analysis suggests that individuals with Lynch syndrome, who have a high risk of developing colorectal and other cancers, may lower their risk by adopting an eating pattern low in snack foods. The study found that those with higher intakes of snack foods were twice as likely to develop precancerous lesions.
Researchers identified MECP2 duplication syndrome as a cause of recurrent infections and neurological problems in infant boys. The study found that excess MeCP2 protein suppressed gamma interferon production, leading to partial immunodeficiency. This deficiency made it difficult for the immune system to fight off certain infections, su...
Researchers successfully repair and read-through stop mutations responsible for Usher syndrome, offering hope for patients with the disease. The team developed gene-based treatment strategies using zinc-finger nuclease technique and aminoglycosides, which show promise in preclinical studies.
Researchers have discovered that lithium restores cognitive function in Down syndrome mice, while stem cell-derived dopaminergic neurons improve motor defects in Parkinson's disease monkeys. Additionally, inhibiting a key protein in Alzheimer's disease may reduce plaque formation and improve memory tasks. Moreover, tempering inflammati...
Researchers found that lithium boosts neurogenesis in the hippocampus of Down syndrome mice, leading to improved cognitive function. The results suggest that lithium-based therapies may be effective in treating Down syndrome patients.
Researchers at NIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development found that prenatal intervention with neuroprotective peptides reduces learning deficits in mice with Down syndrome-like characteristics. The study suggests potential therapeutic benefits for individuals with Down syndrome.
A new study reveals that individuals with Prader-Willi Syndrome may have an impaired autonomic nervous system, leading to abnormal heart rate variability after meals. The findings suggest potential alternative treatments for the condition, which is characterized by insatiable appetite and high cardiovascular risk.
A new computer program has been developed to improve genetic test results for Lynch syndrome, a hereditary predisposition to colon cancer. The program helps assess the risk of colon cancer development by evaluating missense substitutions in mismatch repair genes.
Key researchers propose standards and guidelines for Rett syndrome research to improve animal study design and transparency. The goal is to shorten the time to effective treatments and accelerate progress towards a cure.
A population study found that weightlifters have a lower prevalence of metabolic syndrome, a cluster of risk factors linked to heart disease and diabetes. Lifting weights was associated with a 37% reduction in the odds of metabolic syndrome.
Intense exercise such as fast walking and jogging halves the development of metabolic syndrome, a combination of factors that increase heart disease and stroke risk. The study found that it's not the length of time exercised but rather its intensity that matters.
Researchers at Case Western Reserve University School of Medicine have discovered a promising treatment for Rett syndrome by reversing abnormalities in brain activity with an FDA-approved anesthesia drug, ketamine. This study provides new evidence that drug treatment can improve neurological function in individuals with Rett syndrome.
A novel gene CIB2 has been associated with Usher syndrome, a devastating genetic disorder that affects both hearing and vision. The discovery provides new insights into the disease's progression and may lead to future therapeutic targets.
Researchers at the University of Cincinnati have identified a genetic mutation responsible for deafness and hearing loss associated with Usher syndrome type 1. The discovery of the CIB2 protein provides new insights into the mechanism of mechano-electrical transduction, which converts mechanical energy into sound.
Researchers at UCI found compounds that inhibit enzymes blocking endocannabinoid transmitters, which can help correct behavioral issues related to fragile X syndrome. The study suggests a new approach for treating anxiety and cognitive defects in people with the condition.
A clinical trial found that arbaclofen improved symptoms of social withdrawal and challenging behaviors in individuals with fragile X syndrome. The study suggests the compound may also be effective for autism spectrum disorder, offering new hope for treatment options.
Researchers found a medication to be effective in addressing social withdrawal and challenging behaviors in fragile X syndrome patients. The study suggests potential implications for individuals with autism spectrum disorder, who also experience significant social deficits.
Researchers tested blood samples from 300 people for the presence of XMRV and pMLV genes, eliminating potential contamination that led to earlier false positives. No correlation between these viruses and chronic fatigue syndrome was found, refuting previous speculation.
Researchers have designed a compound that shows promise as a potential therapy for fragile X syndrome, a genetic condition causing mental retardation, infertility, and memory impairment. The molecule improves RNA splicing process and minimizes repeat-associated defects in cells.
A new study reveals that metabolic syndrome is associated with impaired brain function in adolescents, including lower math and spelling scores, decreased attention span, and reduced brain structure. The findings emphasize the importance of addressing childhood obesity to prevent long-term cognitive and brain impairments.
Researchers discovered a 'switch' called MOZ that modifies the Tbx1 gene, essential for normal heart development, to explain variations in DiGeorge syndrome severity. The study found that MOZ activity can be influenced by environmental factors, such as diet, particularly vitamin A, which can exacerbate birth defects.
A new study published in the Journal of Nutrition found that consuming grapes reduced blood pressure, improved blood flow and decreased inflammation in men with metabolic syndrome. The polyphenols found in grapes are thought to be responsible for these beneficial effects.
Researchers have identified a shared signalling pathway in mice that leads to intellectual disability in both Fragile X syndrome and Down syndrome. The study reveals that the Down syndrome critical region 1 protein interacts with the Fragile X mental retardation protein to regulate dendritic spine formation.
Donna McDonald-McGinn, a leading expert on chromosome 22q11.2 deletion syndrome, has made groundbreaking contributions to understanding and treating the condition. Her extensive research and advocacy efforts have improved patient outcomes and care.
A study found that people with metabolic syndrome, a combination of heart disease and type 2 diabetes risk factors, have 15% less blood flow to the brain than those without the condition. This could lead to reduced memory skills, but it is unclear if it will increase the risk of Alzheimer's disease.
Researchers have discovered a drug that boosts memory function in individuals with Down syndrome, improving verbal episodic memory and showing significant improvement in cognitive abilities. The study suggests potential implications for slowing down or halting the development of Alzheimer's disease in adults with Down syndrome.
A new study finds that testosterone-replacement therapy significantly improved symptoms of metabolic syndrome associated with testosterone deficiency in men. Symptoms improved across all three components of obesity, including waist circumference, weight, and body-mass index.