Articles tagged with Mitochondria
Researchers developed a drug that triggers the destruction of damaged mitochondria, restored motor function in aging mice with ALS-like symptoms. The results show promising promise for treating neurodegenerative diseases like Parkinson's and Alzheimer's disease.
Researchers found that SARS-CoV-2 alters mitochondria on a genetic level, leading to widespread 'energy outages' throughout the body and its major organs. This affects the heart, brain, and lungs, contributing to long COVID symptoms.
Researchers developed three new two-photon probes that can visualize organelles in cells, enabling better understanding of cellular functions and tissue imaging. The probes are designed to detect pH levels, viscosity, and ionic species, providing more specific insights into cell viability and treatment responses.
Researchers discovered that fine-tuning mitochondrial energy production reduces melanoma tumor growth and enhances immune response in mice. The study reveals that manipulating mitochondrial electron transport increases expression of immune genes and makes tumor cells more visible to killer T cells.
Researchers found that mature sperm carry only 100 organelles with mitochondria but no intact mtDNA. This discovery has important implications for human fertility and germ cell therapy, potentially limiting the risk of accumulating harmful mtDNA mutations.
A new Northwestern Medicine study reveals that a dysfunction in the neuron's synapses leads to deficits in dopamine and precedes neurodegeneration in Parkinson's disease. The findings suggest targeting dysfunctional synapses before neurons degenerate may represent a better therapeutic strategy.
A novel mitochondrial enzyme was identified as key to reproductive aging, increasing oocyte clustering with age and affecting fertility
Researchers have found that the protein Musashi-2 plays a crucial role in regulating type 2a muscle fiber mass and metabolism. The study reveals that Msi2 knockout mice exhibit reduced muscle mass, decreased myoglobin and mitochondria levels, and impaired sugar metabolism.
Researchers discover compound Urolithin A restores mitochondrial function in hematopoietic stem cells, rejuvenating blood reconstitution capability and improving immune system function. The study shows promising results in aging mice, paving the way for potential interventions targeting age-related health conditions.
Researchers have found that mouse stem cells mimic their parent animals' cold resistance, generating energy differently at low temperatures. This discovery opens up new avenues for studying organ preservation and human hibernation using in vitro models.
Researchers at West Virginia University are tracing the cause of diabetic heart disease using diabetic animal models to examine mitochondrial function. They hope to understand how faulty protein import affects the mitochondria and explore potential treatments to improve energy production and reduce cardiovascular risk.
A study by Children's Hospital of Philadelphia found that COVID-19 affects mitochondrial function in multiple organs beyond the lungs, leading to long-term damage. Mitochondrial gene expression was suppressed in the heart, kidneys, and liver, while recovering in the lungs.
Researchers at the University of Virginia Health System discovered that improper calcium signaling in mitochondria accelerates chronic inflammation, leading to age-related conditions. Increasing calcium uptake in macrophages may help prevent harmful inflammation and its effects on the brain.
Scientists identified a process by which enzymes help prevent heart damage in chemotherapy patients. Enzymes normally found in mitochondria move to the nucleus, keeping cells alive. This discovery suggests new methods for testing individual patient responses and potentially preventing heart damage from chemotherapy.
Researchers at Tokyo Metropolitan University have discovered that 5-aminolevulinic acid can selectively boost Complex II and IV to counteract Complex I deficiency, a common cause of mitochondrial disorders. This finding offers new hope for the development of treatments for debilitating conditions such as MELAS syndrome.
Researchers at University of California San Diego find that impaired mitochondria, not inflammation, drive Gulf War illness symptoms, potentially leading to new treatment strategies. The study's findings have implications for other health conditions marked by increased inflammation.
Researchers found that ahiflower oil supplementation can recover mitochondrial respiration rates in honey bees exposed to imidacloprid, a common neonicotinoid pesticide. This study suggests the potential for food supplements to decrease honey bee mortalities caused by pesticides.
Kabbani's research aims to identify mitochondrial responses to plant-derived compounds and create an iterative dataset for biomarker discovery and drug design. The study is part of a larger effort to understand the role of mitochondrial regulation in human diseases and develop new treatments.
A novel study found that honokiol promotes healing of rotator cuff injury and may be an effective treatment for humans. The study suggests that SIRT3 activation plays a protective role in alleviating aging-induced fibrocartilage degeneration and promoting rotator cuff healing.
Researchers found a link between bipolar disorder and potentially pathogenic mosaic mutations in genes associated with developmental disorders and autism spectrum disorder. Mosaic variants were also discovered in mitochondrial tRNA genes of patients with BD, suggesting a compromised contribution to the disease's molecular mechanisms.
The nucleus is metabolically active and uses antioxidant enzymes to repair DNA damage. Cells relocate mitochondrial machinery to the nucleus in response to DNA damage, highlighting a paradigm shift in cellular biology.
Researchers discovered that melanoma skin cancer cells adopt an efficient style of movement called rounded-amoeboid migration, which requires less energy than traditional cell movement. This process involves reshaping mitochondria to operate in a low-power mode, allowing cells to survive in stressful environments.
Researchers have identified a new group of mitochondrial viruses confined to arbuscular mycorrhizal fungi Glomeromycotina, which may represent an ancestral lineage of mitoviruses. These large duamitoviruses possess distinct characteristics and are globally distributed in ecological niches occupied by glomeromycotinian fungi.
A research team at Hokkaido University has developed a system to deliver antioxidants to mitochondria in the liver, reducing oxidative stress and damaging caused by ROS. The system, called CoQ10-MITO-Porter, was found to be more effective when downsized particles were used.
Researchers at the Lewis Katz School of Medicine found that calcium sensor MICU1 regulates mitochondrial ultrastructure, governing inner and outer mitochondrial membrane structure. This discovery provides a framework for understanding cellular energetics and cell death, with implications for diseases such as cardiovascular disease.
The World Mitochondria Society will host Targeting Mitochondria 2023, a conference featuring sessions on innovations such as mitochondria in space and exosome-based mitochondrial medicine. The event aims to take clinical translation of mitochondrial therapies to a new level.
This study examined the effects of deferoxamine and ferrostatin-1 on salivary gland dysfunction in ovariectomized rats. The researchers found that these compounds reduced inflammation, fibrosis, and improved salivary gland function, suggesting potential treatments for postmenopausal xerostomia.
A recent study published in Life Metabolism reveals that weight loss increases skeletal muscle mitochondrial energy efficiency in obese mice. This increase leads to reduced energy expenditure throughout the body, contributing to weight loss rebound.
A research team from Université Laval has identified a method to save corneal cells from death using healthy mitochondria, reducing mortality rates from 60% to 10%. This approach demonstrates high therapeutic potential for mitochondrial injection, which could maintain vision without transplantation if diagnosed at an early stage.
Researchers have developed a new technology to sequence individual mitochondria in single cells, allowing for unbiased analysis of full-length mtDNA. This has revealed complex patterns of pathogenic mtDNA mutations and the potential risks of off-target mutations in genetic editing strategies.
A Virginia Tech researcher has identified a key factor in DiGeorge syndrome, a genetic disorder affecting brain development. The study finds that mitochondrial deficits can be targeted with dietary supplements or more precisely-targeted drugs to support final connections during brain development.
Researchers at Sogang University and Harbin Institute of Technology developed artificial mitochondria and chloroplasts to create sustainable cells. These organelles can produce energy through sunlight or glucose breakdown.
Researchers at Cold Spring Harbor Laboratory have created a method to safely synthesize the cancer-fighting molecule JA, which has shown promise in treating triple-negative breast cancer. The team found that JA inhibits metabolic activity in cancer cells, starves them of energy and building blocks, leading to cell death.
Researchers developed a small-molecule drug that limits magnesium transport into cellular power plants, resulting in skinny, healthy mice. The findings hold significant implications for preventing cardiometabolic diseases like heart attack and stroke, as well as reducing liver cancer risk.
UVA researchers discovered a metabolic pathway that can modulate COVID-19 inflammation, lung recovery, and host metabolic health. They suggest a potentially viable therapeutic agent that may be combined with existing anti-viral agents to treat severe COVID-19 in patients with underlying metabolic disease.
Glaucoma researchers identify mitochondria as a key source of energy for optic nerve cells, and restoring balance can protect these cells from damage. The study suggests enhancing mitochondrial biogenesis may be a promising treatment strategy.
Researchers have identified mitochondrial signaling pathways as critical organelles that promote tumorigenesis and metastasis. In particular, the integrated stress response is found to engage with mitochondria to drive tumor growth, highlighting a new paradigm for understanding aggressive prostate cancer progression.
A new study has discovered a connection between a mitochondrial metabolite and the activation of an inflammatory response. Fumarate, produced in the mitochondrion, triggers mitochondrial damage that releases genetic material into small vesicles, leading to inflammation.
Researchers from Johns Hopkins Medicine are collaborating with NASA to send human heart tissue into space to monitor its changes in low-gravity conditions. The mission will test the impact of long-duration spaceflights on heart muscle cells, potentially informing age-related cardiac problems treatments.
Researchers at UNIGE and UNIL have discovered the importance of cell metabolism in reactivating quiescent neural stem cells, increasing new neurons in adult mice. This breakthrough could lead to potential treatments for conditions like depression and neurodegenerative diseases.
A new study from Karolinska Institutet found that exercising in the early active phase increased gene expression involved in fat breakdown and thermogenesis, leading to a higher metabolic rate. This effect was independent of food intake and may prove beneficial for people who are overweight.
Salk scientists discovered that when telomeres become very short, they communicate with mitochondria, triggering an inflammatory response. This process destroys cells that could become cancerous, preventing cancer formation. The findings highlight the importance of studying interactions between telomeres, mitochondria, and inflammation.
Researchers from Osaka University have identified a system known as the GET pathway as crucial for regulating the numbers of energy-producing mitochondria. The study found that disruption of the GET pathway leads to reduced mitophagy, a process responsible for removing defective or excess mitochondria.
Researchers discovered that mitochondria actively transport coenzyme Q to the cell surface to protect cells from cell death. The transport process is crucial for regulating coenzyme Q distribution within the cell.
Researchers found that the F-box gene FBXC-58 is a novel mediator of dietary restriction effects on extending the health span of Caenorhabditis elegans. FBXC-58 prevents muscle aging and extends longevity through an S6 kinase-dependent pathway.
A research team led by Dr. Eddie Ma Chi-him identified a therapeutic small molecule M1 that increases mitochondrial dynamics and sustains long-distance axon regeneration, restoring visual functions in mice. Regenerated axons elicited neural activities and survived for four weeks after optic nerve injury.
A team of researchers from Korea and USA identified the importance of lipid homeostasis in overcoming brain cancer radioresistance. They found that regulating diacylglycerol kinase B and diacylglycerol acyltransferase 1 could potentially sensitize brain cancer cells to radiotherapy, offering a new treatment strategy.
Researchers discovered that 15-deoxy-prostamide-J2 induces ER stress-mediated apoptosis selectively in tumor cells, reducing melanoma growth. The molecule activates PERK, IP3R, and the mitochondrial permeability transition pore, leading to cell death.
Researchers found that cells with impaired mitochondria double their energy expenditure, degrading telomeres and activating stress responses. Hypermetabolic state accelerates biological aging, explaining fatigue and exercise intolerance in patients with mitochondrial diseases.
Scientists have decoded the signals plants send themselves to initiate photosynthesis, a process turning sunlight into sugars. The newly identified proteins control communication between plant cells and organelles, potentially leading to breakthroughs in cancer research and improving crop yields.
Researchers used cryo-electron microscopy to study mitoribosome assembly in yeast and humans, revealing similarities and differences in protein involvement and RNA folding. The findings provide insights into molecular complexity and diversity, with potential implications for severe diseases such as Perrault syndrome.
The study uses 3D electron microscopy and live cell imaging to observe molecular tethers between organelles. These dynamic structures are constantly binding and unbinding, altering contact site configuration in response to cellular changes.
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 discovered that mutations in mitochondrial-related genes can trigger hyperinflammation, leading to diseases such as Crohn's disease and tuberculosis. The study found that these mutations lead to a new type of cell death called necroptosis, which causes an aggressive inflammatory immune response.
A new study reveals that urolithin A from pomegranates can rejuvenate T cells by recycling and renewing mitochondria, enhancing their ability to fight tumors. The researchers plan to investigate the application of urolithin A in clinical trials for colorectal cancer.
A mutation in the SHMOOSE protein is associated with a 20-50% higher risk of Alzheimer's disease across four cohorts. The researchers suggest that targeting SHMOOSE may prove beneficial in neurodegenerative and other diseases of aging.
An international team of researchers has used data science to reveal the universal rules shaping cells' power stations. The study found that genes encoding subunits of larger cellular machines are most likely to be retained in organelle DNA.
Researchers have found that nanoplastics can enter human liver and lung cells, disrupting their regular processes and causing inflammation, toxicity, and neurological changes. The study reveals that nanoplastics can alter metabolic pathways, including the production of reactive oxygen species and nucleotides.
A study published in Cell Stem Cell found that mitochondrial dynamics regulate the dormant state of adult muscle stem cells, which are essential for tissue stability. The researchers discovered that the protein OPA1 regulates this process and its depletion leads to severe muscle stem cell defects.
A new study reveals that exploiting mitohormesis, a biological phenomenon where mild cellular stress boosts health and viability, can induce tolerance to influenza infection. Researchers identified a novel molecule, 9-tert-butyldoxycycline, which triggers beneficial mitochondrial responses that reduce tissue damage and inflammation.