The magnificent English springer spaniel's genome carries defective genes that
cause retinal, or eye, disease.
In glaucoma, normal proteins (cellular machines) are corrupted and
cause the retinal ganglion cells to die.
Thus it was fascinating to see positive selection on genes like CHM and CNGB3, in which mutations can
cause retinal diseases featuring night blindness (i.e. choroideremia and retinitis pigmentosa) in humans.
«This is important because the death of photoreceptor cells is known to
cause retinal degenerative diseases in humans that lead to blindness.
Variants in the IQCB1 gene are known to
cause retinal degeneration in humans.
ROP is a condition that causes abnormal blood vessels to grow in the retina (back of the eye) and can
cause retinal detachment, which is a major cause of childhood blindness globally.
A team led by pediatric ophthalmologist Robert Koenekoop at McGill University gave the medication to 14 patients with Leber congenital amaurosis, an inherited disease that
causes retinal degeneration leading to blindness.
The teams» three papers, each on Nordic dogs (Swedish Vallhund and Norwegian Elkhound) and each addressing blinding ocular diseases affecting both dogs and people, identified genes
causing retinal disease and glaucoma, which may lead to gene therapies for dogs and humans.
Sometimes the optic nerves swell so badly they bulge into the back of the eye, degrading vision and
causing retinal hemorrhages.
It's therefore a thrill when there's an update to RetNet — the database of genes and loci
causing retinal disease — that includes one of our recent discoveries.
Essential role of the carboxyl - terminus for proper rhodopsin trafficking and enlightenment to the pathway (s)
causing retinal degeneration in a mouse model expressing a truncated rhodopsin mutant: ProQuest.
Not exact matches
On Wednesday, Spark Therapeutics Inc (NASDAQ: ONCE) announced it will charge $ 425,000 per eye for one - time treatments of a rare genetic
retinal disease that
causes blindness.
Over time, this exposure leads to
retinal damage, including Age - related Macular Degeneration (AMD), which is the leading
cause of blindness for people over age 50.
Retinal screening Diabetes is the leading
cause of blindness in people of working age in the UK.
Mice with this eye disease, which damages the optic nerve and
causes vision loss, have higher levels of the immune molecule, which accumulates at
retinal synapses before the neurons die.
Professor Hannes Lohi's research group at the University of Helsinki and Folkhälsan Research Center, Finland, has identified a mutation in CNGB1 gene,
causing progressive
retinal atrophy (PRA) in the Phalene and Papillon dog breeds.
«In further studies we want to examine how different combination therapies affect the
retinal proteins, in order to achieve a better understanding of the
causes and treatment of this diabetes complication,» added Dr. Stefanie Hauck (PROT).
Finnish researchers have identified a genetic mutation
causing progressive
retinal atrophy (PRA) in the Phalene and Papillon dog breeds.
Stroke is the fifth - leading
cause of death in the United States, accounting for one in every 20 deaths, but less is known about
retinal infarction, which may go undetected and under - treated.
The litters were also exposed to high levels of oxygen, which
causes a loss of blood vessels in
retinal tissue.
Until now, this inherited
retinal disease that
causes visual impairment ranging from reduced vision to complete blindness, has remained untreatable.
When asked to attribute a
cause of subdural hematoma, severe
retinal hemorrhage, coma or death in a child less than 3 years of age, more than 80 percent of physicians responded that shaking with or without impact was likely or highly likely to produce subdural hematoma, 90 percent reported that it was likely or highly likely to lead to severe
retinal hemorrhage, and 78 percent felt that it was likely or highly likely to result in a coma or death.
The «dry» form is
caused by natural deposits on the retina that gradually kill
retinal pigment epithelial cells.
In this condition, the smallest vessels supplying the retina with oxygen become leaky,
causing fluid to swell the central
retinal area and impairing the type of vision required for precise activities such as reading.
Now, in a series of recent studies, scientists at the University of Missouri are using whole genome sequencing through the 99 Lives Cat Genome Sequencing Consortium to identify genetic variants that
cause rare diseases, such as progressive
retinal atrophy and Niemann - Pick type 1, a fatal disorder in domestic cats.
Inherited
retinal diseases are among the leading
causes of incurable blindness in humans as well as in dogs, where most of these conditions are classified as progressive
retinal atrophy (PRA).
For Spark, the injection site is the eyes of people, mostly children and young adults, who have a type of inherited
retinal disease
caused by a mutation in a gene called RPE65.
These findings could have a significant impact on our understanding of
retinal degenerative diseases that
cause blindness.
By coupling nerve cell receptors to light - sensitive
retinal pigments, Prof Dr Olivia Masseck researches into the
causes of anxiety and depression.
If so, it might be possible, he said, to develop treatments that can repair
retinal damage, which is responsible for several common
causes of vision loss.
Samantha de Silva and colleagues used a viral vector to express a light sensitive protein, melanopsin, in the residual
retinal cells in mice which were blind from retinitis pigmentosa, the most common
cause of blindness in young people.
It has been designed for treating the «dry» form of macular degeneration,
caused by deposits on the retina gradually killing
retinal pigment epithelial cells, which support light - capturing cells.
«
Retinal injuries and blinding diseases of the retina tend to
cause a massive loss of neurons.
Along with age - related macular degeneration, diabetic
retinal degeneration is one of the most common
causes of blindness.
The researchers injured the mice retinas with a toxin that
causes cell death in
retinal ganglion cells and interneurons, another type of
retinal cell whose job it is to transmit signals from photoreceptors to the brain.
Loss of, or diminished,
retinal DHA leads to visual impairment and may play an important role in the development of blindness from retinitis pigmentosa and other
retinal degenerative diseases, as well as age - related macular degeneration (AMD), the foremost
cause of blindness in people older than 50 years.
If the researchers can get the technique to work with human stem cells, she says, it could help the one in 3000 people born with a form of blindness
caused by damaged
retinal cells and the many more who lose their sight because of age - related disease.
Apte and Ban don't believe that the molecule
causes cells in the retina to die; rather, that it is a marker of stress in
retinal cells.
Retinal degenerative diseases, including age - related macular degeneration and Retinitis Pigmentosa (RP) are the predominant
causes of human blindness worldwide and are very difficult to treat.
In most cases, hypoxia is
caused by either a dysfunction of the
retinal vasculature, as in diabetic retinopathy and
retinal artery and vein occlusions, or it is due to a mismatch between nutrient supply and demand, as in the case of a
retinal detachment, where the retina is separated too far from the choroid to receive sufficient oxygen.
They play a pivotal role in regulating synaptic transmission, modulating excitotoxicity responsible for much of the neuronal damage
caused by hypoxic insult in the brain [37], and are expressed in
retinal photoreceptors, horizontal cells, and bipolar cells as well as the amacrine and ganglion cells of the inner retina [38 — 41].
In addition to studying peripheral
retinal lesions in the clinic, Joslin scientists are looking for the
causes of the lesions, with one likely suspect being a failure of blood flow in the affected regions.
Second, Tie2 deletion in pericytes
caused a mild and transient developmental delay of postnatal
retinal angiogenesis and vessel maturation.
It's also been linked to a super-rare digenic form of
retinal disease: heterozygous mutations in PRPH2 and another gene (ROM1) in the same individual can
cause retinitis pigmentosa.
Retinitis pigmentosa is an inherited
retinal degenerative disease that
causes slow but progressive vision loss due to a gradual loss of the light - sensitive
retinal cells called rods and cones.
Current therapeutic strategies for glaucoma, the most common
cause of irreversible blindness [1], act only to manage the condition and there are currently no means to replace the
retinal ganglion cells (RGCs) which are lost in this disease.
Dr. Chen's previous work focused on
retinal vascular biology to understand the
causes and identify potential therapies to treat pathologic blood vessel growth in eye diseases, including the wet form of AMD.
This leakage
causes permanent damage to light - sensitive
retinal cells, which die off and create blind spots in central vision.
The treatment could help people who have a fault in a gene called RPE65, which
causes problems in the
retinal pigment epithelium (RPE), a thin layer of cells that support and nourish photoreceptors.
According to the FDA, cobimetinib may
cause severe side effects including cardiomyopathy or rhabdomyolysis, primary cutaneous malignancies,
retinal detachment, hepatotoxicity, hemorrhage, and severe skin rash due to increased sensitivity to sunlight.