Articles tagged with Neurodegenerative Diseases
A new study provides the first 3D visualization of the dynein-dynactin complex bound to microtubules, revealing a surprising feature: two dynein molecules where one was expected, with four motor domains total. This discovery helps explain how dynein can haul large loads over long distances in crowded cellular environments.
Researchers have developed a novel laboratory model that replicates key hallmarks of pediatric high-grade glioma, a devastating illness and leading cause of death in children. Mutations in histone 3.3 are believed to play a pivotal role in its development, with the new model supporting the concept that cancer starts in utero.
A team of Japanese and US scientists have created a microdevice that successfully forms axon fascicles in the lab, similar to those seen in the brain. This innovation could provide insights into brain development and disease prevention by studying the formation of fascicles.
The study seeks to discover calcium sources in synapses that prolong neurotransmitter release, a process more expressed in neurodegenerative diseases. Researchers will investigate key players in this process using asynchronous release of neurotransmitters.
Researchers have discovered a new role for an enzyme called Axundead in promoting axon degeneration. However, blocking its function preserved the integrity of injured axons and allowed them to maintain signal transmission within the brain's complex circuitry for weeks.
A study by Sanford Burnham Prebys Medical Discovery Institute researchers found that autophagy declines with age, leading to incomplete recycling of cellular waste. The team discovered this decline occurs after autophagosomes are formed, potentially blocking the conversion process and contributing to age-related diseases.
Researchers discovered two brain proteins with unique functions in the development of dementia, leading to potential new treatments. The study used Drosophila fruit flies to examine the effects of these proteins on nerve cell survival and activation, revealing one form is linked to poor movement and another to greater neurodegeneration.
Dendritic cells are crucial for immunity against pathogens and foreign substances. Researchers found that these cells develop from specialized progenitors, not a common progenitor, providing insights into the regulation of human immune responses.
A new study reveals that circular RNAs, previously thought to be non-coding, can encode for proteins. The discovery suggests an unexplored layer of gene activity and may have implications for understanding aging and neurodegenerative diseases.
Researchers at Toronto Western Hospital's Canadian Concussion Centre discovered CTE in a brain without head trauma or concussion history. The finding suggests that the cause of CTE might be more complex than previously thought, with Dr. Lili-Naz Hazrati stating that there are more questions than answers about the definitive causes of CTE.
Researchers at the University of Illinois College of Medicine found that butyrate corrected a gut microbiome imbalance and reduced gut leakiness in mice with ALS. The treated mice lived longer than control mice and showed improved neuromuscular function.
A Scripps Florida team has been awarded $1.8 million to develop drug candidates for diseases such as heart disease, rheumatoid arthritis, and neurodegenerative disorders. The researchers will focus on inhibiting the ASK1 enzyme, which has shown promise in reducing heart cell death and improving resistance to stress-related diseases.
Researchers discovered a link between genes nardilysin and OGDHL, which are crucial for mitochondrial function, and progressive loss of neurological functions in humans. Mutations in these genes lead to neurodegeneration, characterized by the accumulation of cellular trash.
Researchers at Tel Aviv University found that phosphatidylserine treatment can enhance the stability of microtubular highways in neurons and improve cargo movement along these pathways. The study suggests that this supplement may be instrumental in reversing detrimental effects of Familial Dysautonomia.
Researchers at the University of Minnesota have made a groundbreaking breakthrough in developing a noninvasive brain-computer interface technology that allows people to control a robotic arm using only their minds. Eight healthy human subjects successfully controlled a robotic arm to pick up objects and move them from one location to a...
The grant will accelerate the creation of high-priority mouse models for Charcot-Marie-Tooth disease and other peripheral neuropathies. Researchers aim to investigate disease mechanisms and develop treatments, which currently have no cures or effective treatments.
Researchers at Tokyo Institute of Technology have discovered the molecular mechanism behind autophagy initiation, revealing that Atg13 forms a supramolecular complex with other proteins. This breakthrough may lead to the development of therapeutic treatments for diseases such as neurodegeneration and cancer.
Research suggests that patients with MSA have lower levels of coenzyme Q10 (CoQ10) in their blood, regardless of COQ2 genotype. This finding may support the idea that CoQ10 supplementation could be beneficial for MSA patients. However, more studies are needed to confirm this hypothesis.
Scientists create method to differentiate patient-derived stem cells into retinal ganglion cells, which can help combat neurodegeneration in glaucoma. This breakthrough enables personalized medicine prospects for patients with glaucoma.
Researchers have elucidated the structure of mTORC1, a crucial protein complex involved in cellular signaling and disease regulation. The study reveals detailed interactions between partner proteins, shedding light on the mechanism of rapamycin-induced changes, which affects substrate specificity and pharmaceutical effects.
Researchers at Mayo Clinic found significant evidence of chronic traumatic encephalopathy (CTE) in males who participated in amateur contact sports, including football, wrestling, and rugby. The study suggests that these sports may increase the risk of developing CTE, a progressive degenerative disease caused by repetitive brain trauma.
A fruit fly model of Alexander disease has been developed to study astrocyte dysfunction and its role in neurodegeneration. Nitric oxide has been identified as a critical mediator in the process.
A mutation in a key enzyme affects sphingolipid levels, leading to neurodegeneration. Researchers found that increased 20-carbon sphingolipids cause problems with neuronal membranes.
Research suggests that ALS patients consume more daily calories but have a lower body-mass index (BMI) than those without the disease. Higher premorbid intake of total fat, saturated fat, trans-fatty acids, and cholesterol is associated with an increased risk of ALS, while higher alcohol intake is linked to a decreased risk.
Researchers at NIH's NINDS have discovered a critical transport defect in motor neurons with SOD1 mutations, which causes cells to accumulate damaged materials. Increasing snapin levels during early stages of the disease can correct the problem and improve motor neuron survival.
Researchers developed a fly model to study age-dependent neurodegeneration at single cell resolution, identifying three genes involved in the process. The findings have relevance for understanding ALS progression and could lead to therapies for neurodegenerative diseases.
Scientists confirm neuroprotective function of PrPC against epilepsy using four animal models, revealing its crucial role in preventing seizures. The study's precision and collaboration between international institutes make it a significant reference point in the field.
A new study reveals how synchronized gene activation is achieved in developing neurons through a TTP/miR-9 regulatory pair, which limits messenger destabilization and ensures coordinated accumulation of neuronal proteins.
Researchers identified a cellular mechanism that can be targeted to treat ALS by increasing levels of protein hUPF1, which successfully protected against cell death in both genetic and sporadic versions of the disease. Treating this pathway may also have implications for frontotemporal dementia.
Researchers discovered a feedback signalling mechanism responsible for changes in nerve cells exposed to prolonged light, which may help protect neurons from degeneration. The study provides insight into synaptic plasticity and potential therapeutic applications for neurodegenerative diseases.
A breakthrough study discovered a novel neurodegenerative disease in Lagotto Romagnolo dogs caused by an ATG4D gene mutation. The research sheds light on the function of neurons and may aid in developing treatments for neurodegenerative disorders, as similar mutations have been linked to human diseases.
Researchers identify molecular pathway reducing misfolded proteins implicated in ALS and dementia. Inactivating specific genes can improve mobility in roundworms and human cells, suggesting potential therapeutic value.
Scientists have found that senataxin, a protein associated with neurodegenerative diseases, plays a key role in the body's natural antiviral response. Abnormal inflammation generated by senataxin deficiency may contribute to disease progression in conditions like ALS.
Researchers aim to target autophagy pathway, a key enzyme involved in cancer and neurodegenerative diseases. They plan to use high-throughput screening facilities to identify new inhibitors of Ulk1, a critical on-off switch regulating the pathway.
Researchers found lipid droplet accumulation in glial cells before signs of neurodegeneration appeared, leading to impaired support for neurons. Reducing components of the pathway can delay neurodegeneration.
A study of 219 MS patients found that only 46% maintained no-evidence-of-disease-activity for clinical and MRI measures at one year, decreasing to 27.5% at two years and 7.9% after seven years.
Researchers have made a breakthrough in understanding brain cell communication and developed a fruit fly model to study neurodegeneration. By partially inhibiting the breakdown of 'defective' proteins, they were able to completely suppress neurodegeneration in fruit flies.
A Taiwanese study found that ACE-inhibitors use was associated with a 57% reduced risk of developing amyotrophic lateral sclerosis (ALS) in patients prescribed more than 449.5 cumulative defined daily doses. The research used data from over 14,500 individuals and suggested long-term exposure to ACEIs may be inversely linked to ALS risk.
Researchers developed two mouse models with mitochondrial distribution defects that mimic neurological problems similar to ALS. The study found that impaired movement and muscle clasp were symptoms of the disease, suggesting a link between mitochondria distribution and motor neuron disease progression.
Researchers found that serum albumin and creatinine levels are related to ALS survival in both sexes. Lower albumin and creatinine levels are related to worse clinical function at diagnosis.
Researchers have successfully treated a neurodegenerative disease in worms using resveratrol, which could lead to new treatments for humans. The disease, adult onset neuronal lipofuscinosis, affects only 1 in 100,000 people and has no known cure.
Neurons store glycogen as a rapid energy source, but excess leads to death. Conversely, small amounts are beneficial for cell survival during oxygen depletion.
Researchers at the Weizmann Institute of Science have identified a key player in triggering brain inflammation and nerve cell death in severe forms of Gaucher disease. This discovery may lead to new treatments, including those that can cross the blood-brain barrier to target neurological symptoms.
A 2-year study found diflunisal reduced neurological impairment and preserved quality of life in familial amyloid polyneuropathy patients compared to placebo. The treatment showed potential benefit in a phase 1 study and is well-tolerated by patients.
Activating P300 protein facilitates DNA repair in hippocampal neurons, potentially treating neurodegenerative disorders. Researchers propose novel object recognition tasks as a therapeutic complement to classical drug-based therapy.
Researchers discovered that Neurexin2 dysfunction contributes to neurodegeneration in Spinal Muscular Atrophy, a devastating genetic disease affecting infant and young adults. A restoration of Neurexin2 activity partially recovers neuron function in SMN deficient zebrafish, offering a new direction for therapy of neurodegeneration.
5-hydroxymethylfurfural, extracted from wine-processed Fructus corni, protects against H2O2-induced rat hippocampal neuron apoptosis by regulating apoptosis-related genes. This finding provides evidence for the clinical prevention and treatment of oxidative injury-related diseases in the brain.
Researchers have identified a link between VCP gene mutations and toxic protein buildup in ALS patients, providing a new approach for developing treatments against the devastating disease. The study suggests that activating autophagy to clear stress granules could offer a new strategy for treating neurodegenerative diseases.
A team of researchers has identified a gene mutation responsible for a severe form of pontocerebellar hypoplasia, a currently incurable neurodegenerative disease affecting children. A nutritional supplement, AICAR, bypasses the block that prevents protein synthesis, restoring neuronal survival.
Researchers discover histone H1 protein's role in neurodegenerative disease and stroke; protein can trigger immune response and drive brain cell death. The study may lead to the development of new treatments for neurodegenerative diseases and stroke.
A new gene therapy treatment has been developed to cure Sanfilippo Syndrome type A in animal models by introducing the sulfamidase enzyme into cells, eliminating glycosaminoglican accumulation and associated neuroinflammation. The treatment has shown promising results in mice and dogs, with improved behavior and life expectancy.
Researchers discovered a previously unrecognized organelle gatekeeper function in C. elegans, which restricts the flow of Golgi and endosomal organelles into axons. Additionally, two studies identified novel players in meiotic silencing by unpaired DNA in Neurospora, providing insights into genome integrity and transmission.
Researchers at the University of Illinois Chicago have found that a unique modification to microtubules in neurons makes their cytoskeleton singularly robust. This discovery may help guide the search for treatments for neurodegenerative diseases.
Researchers at CSHL found that transposons increase in abundance and activity in the brains of fruit flies as they age, correlating with neurological degeneration. This 'transposon storm' may contribute to age-related brain defects in humans.
Researchers identify C9orf72 mutation as cause of ALS and FTD, finding it creates an RNA sponge that soaks up Pur alpha protein, leading to neurodegeneration. The study provides insight into the disease mechanism and suggests a potential therapeutic strategy targeting the toxic RNA or its interaction with Pur alpha.
Research reveals that VCP gene mutations disrupt energy production in cells, leading to mitochondrial dysfunction and increased vulnerability. This study sheds new light on the role of VCP in multiple neurological disorders.
Researchers identified an enzyme that removes ADP-ribose modifications from proteins, essential for normal cell function. This finding provides a new pathogenic mechanism for neurodegenerative disorders and may lead to the development of new cancer drugs.
A new virtual reconstruction of human metabolism, Recon 2, has been built to identify causes of diseases and develop new treatments. The model provides a detailed map of metabolic pathways, allowing researchers to pinpoint specific gene expressions and their effects on disease progression.
Researchers have found new candidate disease proteins for neurodegenerative disorders, including two RNA-binding proteins with prion-like segments associated with inherited forms of ALS and multisystem proteinopathy. Mutations in these proteins accelerate the formation of self-organizing fibrils that contribute to disease.
Scientists will use high-throughput screening to identify novel inhibitors of ASK1, a promising therapeutic target for diseases like rheumatoid arthritis. The grant aims to develop new treatments using compounds from the Scripps compound collection.