Articles tagged with Retinal Development
Researchers at A*STAR's Institute of Molecular and Cell Biology developed a bio-functional thermogel that prevents retinal scarring in pre-clinical models. The thermogel modulates cellular behavior to prevent scar membrane formation, offering a novel therapy for proliferative vitreoretinopathy.
Researchers found that the eyes of tadpoles undergo significant changes in gene expression and photoreceptor cell sensitivity to adapt to life on land. The study reveals that 42% of genes involved in vision changed between tadpole and juvenile frog stages, enabling better adaptation to a bluer light environment.
The device can instantly recognize what it sees, like automatic descriptions of pictures taken by a camera or phone, and outperforms the eye in the number of wavelengths it can see. It's uniqueness comes from its ability to integrate three different operations into one, making it many times faster than current technology.
A Korean study of 430 adults found that thicker macular retinal nerve fiber layers were associated with faster cognitive decline. The researchers suggest this finding could inform predictive biomarkers for evaluating cognitive function in older adults.
A study published in Ophthalmology identified the genetic spectrum behind foveal hypoplasia, a rare condition affecting vision development. The research combined data from over 900 cases across the globe and revealed relationships between genetic defects and the degree of arrested foveal development.
A new multimodal eye scanner combining optical coherence tomography (OCT) and Raman spectroscopy enables the detection of molecular information in the internal structure of the eye. This technology aims to detect neurodegenerative diseases, such as Alzheimer's and Parkinson's, at an early stage, improving treatment options.
Researchers at OIST Graduate University identified the strip1 gene as essential for keeping retinal ganglion cells alive. The gene suppresses Jun-mediated apoptosis, promoting correct neural circuit formation in the retina. This finding opens promising new avenues for treating diseases like glaucoma.
A retinal stem cell patch has survived for two years after implantation and continues to function without triggering immune rejection. The patch, developed through a collaboration of researchers, is one step closer to securing FDA approval and potentially restoring vision to millions of people affected by age-related macular degeneration.
KAUST researchers develop an artificial electronic retina that mimics human vision and recognizes handwritten numbers with high accuracy. The retina uses perovskite nanocrystals to detect light intensity via capacitive change, offering a more energy-efficient alternative to existing systems.
Researchers at RIKEN have developed a new retinal transplant technique by engineering human-derived retina sheets to lose bipolar cells, allowing better connections to host retinas and improved responses to light. The technique has shown substantial functional improvement in animal studies and is now poised for human clinical trials.
Scientists at St. Jude Children's Research Hospital identified a 'modular' super-enhancer that controls gene expression during retina formation, revealing four distinct regions with different functions. This discovery provides a way to study gene expression during development and offers a blueprint for studying brain development.
A study led by LSU Health found how late-onset retinal degeneration develops and identified a surprising potential therapeutic, metformin. The research suggests that an enzyme called AMPK activates the protein CTRP5 to regulate fatty acid metabolism and energy stability.
Microglia, the brain's immune cells, migrate to the retina using blood vessels as pathways and require neurogenesis for colonization. The study provides insights into microglial migration and its implications for neurodegenerative diseases.
The HyVIS project is a four-year European initiative that will develop bionic synapses for retinal prostheses, exploiting residual neuronal functionality to restore sensitivity to light. The approach involves plasmonic nanocannals and intelligent polymers to release neurotransmitters in response to light stimuli.
Researchers identified a pattern that links the accumulation of amyloid beta (Aβ) proteins with a reduction of serotonin, which may help predict who will develop late-life depression. The study found that individuals expressing this pattern had more severe depressive symptoms.
Researchers have successfully cultivated complex retinal tissue from embryonic stem cells of medaka and zebrafish. The study, published in eLife, demonstrates the feasibility of growing retina-like structures in a Petri dish, offering new insights into retinal development and potential applications for human medicine.
Before birth, neonatal mice's retinas generate spontaneous patterns of activity that simulate optic flow, training the brain to process directional information. This intrinsic mechanism prepares the visual system for motion detection at eye opening, despite the mouse not being able to see yet.
Researchers from MIPT and Harvard have developed an algorithm to automate the process of growing retinal cells in vitro, reducing processing time from two hours to 34 minutes. The approach enables high-throughput tissue production for drug tests and cell transplantation experiments.
Researchers developed a neural network capable of recognizing retinal tissues during differentiation without modifying cells. The method allows for growing retinal tissue for developing cell replacement therapies to treat blindness and conducting research into new drugs.
Scientists at the University of California, Berkeley have found evidence that light-sensitive cells in the developing retina are networked and play a more significant role in brain development than previously thought. The discovery suggests that these cells may enhance the influence of light on behavior and brain development.
Researchers developed two AI methods that decipher complex gene activity controlling cell fate decisions in retina development, relating this gene activity to other tissues and across different species. The findings provide key insights into human disease and highlight the potential for AI to shed light on cancer treatment.
Researchers developed an image-processing algorithm that can automatically detect fluid on the retina with high accuracy. Early diagnosis is crucial as diabetic retinopathy can cause irreversible vision loss if left untreated.
Researchers are using lab-grown mini retinas to understand the connection between the eye and brain, with a focus on restoring vision in people with damaged retinal ganglion cells. The study found that a protein called Netrin-1 significantly increased axon outgrowth from these cells.
Researchers developed two new devices to mechanically stress human retinal cells, mimicking slow and continuous stress levels as well as high levels of stress. The study found that mechanical stress results in the expression of vascular endothelial growth factor, a protein linked to disease initiation and progression.
Researchers used human retinal tissue grown from stem cells to discover how cone photoreceptors develop, leading to insights into eye diseases like color blindness. Thyroid hormone signaling regulated the growth of blue-detecting cones first, followed by red- and green-detecting ones.
A Swedish-US study found that premature babies with low platelet levels have a fourfold increased risk of severe retinopathy of prematurity, a condition that can cause permanent vision impairment and blindness. Injections of platelets may provide new therapeutic possibilities for treating this disease.
Researchers have developed a new system using ultraflexible mesh electronics to track the firing patterns of dozens of retinal cells chronically in awake animals. This allows for new insights into how retinal ganglion cells behave over multiple circadian cycles, revealing dramatic changes in cell activity at different times of day.
The National Eye Institute is seeking innovative approaches to create functional human retina prototypes using stem cells. The goal is to develop 'mini-retinas' that can replicate the complexity of the human retina, enabling the study of underlying causes of retinal diseases and testing new drug therapies.
The National Eye Institute (NEI) awarded $90,000 to a team led by Erin Lavik for their innovative approach to creating a living model of the human retina. The award aims to develop next-generation models to study blinding diseases and test therapies.
A synthetic, soft tissue retina developed by an Oxford University student offers fresh hope to visually impaired people. The study uses biological, synthetic tissues and could transform the bionic implant industry and treat degenerative eye conditions like retinitis pigmentosa.
A team of engineers developed a nanotechnology-based retinal prosthesis that mimics the retina's light-sensing cones to directly stimulate retinal cells. The device, powered wirelessly, has shown promising results in animal tests, bringing researchers closer to restoring functional vision in patients with severe retinal degeneration.
Researchers found that preeclampsia in pregnant rats led to less severe retinopathy and normal retinal vascular development in offspring. The combination of preeclampsia and oxygen fluctuations reduced features of ROP. Growth factors needed for retina development came from the pups, not the mothers.
A study by Mass. Eye and Ear researchers describes an association between a defective myogenic response in blood vessels of the retina and early development of diabetic retinopathy in patients with type 1 diabetes. The findings provide a potential target for therapies to delay or prevent accelerated onset diabetic retinopathy.
A Rochester team is designing an optical system to image responses of individual cells in the retina, aiming to accelerate vision restoration technologies. The team will collaborate with investigators exploring gene therapy, stem cell replacement, and genetic re-engineering to restore vision.
RetroSense Therapeutics, a Wayne State University start-up, has received the prestigious Luis Villalobos Award for its innovative optogenetic gene therapy approach. The technology has the potential to treat all forms of blindness due to degenerated photoreceptors.
A gene that regulates blood vessel constriction is linked to aberrant blood vessel growth in premature babies, leading to vision loss. The finding suggests a new therapy to prevent damage and highlights endothelin's role in both blood pressure regulation and blood vessel formation.
The development of the retinal vascular system follows specific rules and is spatially and temporally consistent with retinal neuron function. Astrocyte-vascular wall cell interactions lead to the maturation of the blood-retinal barrier, a crucial component in maintaining retinal health.
Researchers have developed a new gel-based eye fluid called Healaflow that stabilizes the eye during healing after retinal detachment surgery. This new product does not appear to inflict additional damage on the retina, setting it apart from other alternatives.
Prenatal retinoid deficiency linked to airway hyperresponsiveness in adult mice, affecting proper airway development and inflammatory responses. Retinoid signaling plays crucial role in preventing inappropriate pulmonary inflammation.
Engineered anti-toxin antibodies have been shown to increase toxin neutralization activity by enhancing the interaction between toxins and Fc receptors on immune cells, improving protection against anthrax toxin. Additionally, prenatal retinoid deficiency has been linked to airway hyperresponsiveness in adult mice, highlighting the imp...
New research shows that vegetable oil fatty acids can increase plasma membrane fluidity in retina cells, reducing the risk of retinopathy and age-related macular degeneration. A diet rich in omega-3 fatty acids and olive oil may also contribute to preventing retina diseases.
Researchers discovered that horizontal cells, processing visual information, are crucial for maintaining photoreceptor cell integrity. Without Onecut1, the number of photoreceptors decreases, leading to potential retinal degradation and diseases like retinitis pigmentosa.
Researchers visualize retinoic acid distribution for the first time in a live zebrafish embryo, observing two opposing concentration gradients along the head-to-tail axis. This discovery confirms retinoic acid as a morphogen, essential for understanding tissue development and regenerative medicine.
Sher's innovative system enables groundbreaking studies on vision and applications for improving treatment of retinal diseases. He plans to monitor the simultaneous activity of hundreds of neurons in laser-treated retinal tissue to determine whether restored circuits are fully functional.
Research at Peninsula College of Medicine and Dentistry found that screening people with type 2 diabetes every two years is a safe and cost-effective strategy, reducing costs by around 25%. This approach could benefit 2.8m people in the UK who have diabetes.
A new pig model has been developed to study and potentially treat the debilitating eye disease retinitis pigmentosa. The miniature swine model expresses classic features of the disease and can be used to screen novel therapies for this devastating condition.
Researchers at Yale University found that spontaneous brain activity in the womb plays a crucial role in shaping the visual system, challenging the idea that genes are the primary determinants of brain development.
Researchers at Case Western Reserve University School of Medicine will study and develop new treatments for diseases of the retina, a leading cause of blindness. The $10.1 million grant aims to accelerate the development of effective therapies, particularly for age-related macular degeneration.
A Swedish study found that more pre-term infants surviving in neonatal intensive care units are experiencing vision problems due to retinopathy of prematurity, a condition involving abnormal blood vessel development in the retina. The incidence of this condition is higher in extremely preterm infants born before 27 weeks' gestation.
A new embryology study clarifies the role of retinoic acid in limb development and finds that it controls forelimb budding but not hindlimb patterning. The research may lead to new therapeutic measures for congenital limb defects such as Holt-Oram syndrome.
Researchers found that minor differences in cell proliferation timing can explain large differences in eyes of owl monkeys and capuchin monkeys. This discovery reveals an evolutionary mechanism for changes in brain structure, enabling flexibility in eye specialization.
A recent study published in The Lancet found that calcium dobesilate did not prevent the development of clinically significant macular oedema (CSME) in patients with mild-to-moderate diabetic retinopathy. In fact, patients who received calcium dobesilate were more likely to develop CSME than those given a placebo.
Researchers found that the N-myc gene coordinates retina growth to ensure proper thickness, a crucial process for converting light into images. The study provides new insights into retinoblastoma, a rare pediatric eye cancer, and may lead to improved understanding of eye formation.
A recent study reveals that CMV retinitis is causing blindness in young people with HIV in the developing world, often leading to fatal outcomes. Successful management of the disease requires decentralizing diagnostic capacity and making valganciclovir medication affordable.
A study by UC Irvine researchers has revealed how human embryos regulate levels of retinoic acid, a derivative of Vitamin A, to avoid birth defects. The study found that cells regulate retinoic acid within a certain range, using enzymes and proteins to maintain optimal levels.
A new study by St. Jude investigators reveals the role of several key genes in retina development and suggests new studies for designing more effective drugs to treat retinoblastoma. The study found that humans are more susceptible to developing eye cancer due to a difference in gene expression between mice and humans.
Researchers found that in mice, proteins Rb and p107 compensate for each other in retinal progenitor cells, preventing deregulated proliferation that leads to retinoblastoma. In contrast, humans lack these compensatory mechanisms due to the main protein RB1, leading to retinoblastoma.
Researchers found that intrinsically photoreceptive retinal ganglion cells (ipRGCs) are present at birth and act as functional photoreceptors, providing input to the suprachiasmatic nucleus. This discovery has implications for the effect of light on early retinal development.
Researchers discovered that diabetic retinopathy occurs in people with pre-diabetes, suggesting eye changes may begin earlier than previously thought. Regular eye exams and good blood sugar control are recommended to prevent vision loss.
Researchers at the Salk Institute found that the retina is the default pathway for eye development in mammals, controlled by two chemical cues. This discovery has important implications for human therapy, as it highlights the need to regulate stem cell development and prevent excessive growth of the retina.