A US company finds that stem cell therapy improves vision

Editor's note: According to a report by the British "New Scientist" on May 21st, the researchers of the American Advanced Cell Technology Company used human embryonic stem cell therapy through experiments to improve the vision of an almost blind eye disease patient to 0.5 (International Standard Vision Chart , Equivalent to 4.7) of the logarithmic chart.

Stem cells are primitive cells that can survive for a long time, have continuous self-reproduction ability and multidirectional potential, and exist in almost all tissues. Stem cell therapy is the use of in vitro isolation, culture, and directed differentiation of stem cells to cultivate a new, normal, and younger cell, tissue, or organ. It is transplanted into the body through special transplantation techniques to replace those cells that are normally or abnormally dead, thereby restoring body function.

It is understood that advanced cell technology companies began clinical trials of human embryonic stem cells in the treatment of eye diseases in 2011. The treatment being tested is to first transform human embryonic stem cells into fresh retinal pigment epithelial cells, and then transplant them under the retina of one eye of the participant to observe the final results and test the safety of the test.

Patients receiving this therapy said their vision had improved. In the latest experiment, a patient's vision has been significantly improved-the naked eye vision of both eyes has increased from 0.05 (the walking person is just a swaying black shadow in front of his eyes, almost equivalent to blindness) to 0.5. Gary Rabin, chairman of the Advanced Cell Technology Company of Massachusetts, said: "Patients who were once blind have now recovered their eyesight and are fully capable of driving vehicles."

So far, the company has treated 22 patients with two different degenerative eye diseases: dry age-related macular degeneration and juvenile macular dystrophy. The former mainly affects the elderly, while the latter is a genetic disease that usually develops in childhood. Patients with these two types of conditions will gradually lose retinal pigment epithelium (RPE) cells, which are important proteins for human vision as circulating proteins. Their lipid residues will accumulate on the retina and provide nutrients and energy to photoreceptors. The cells can capture light and send signals to brain tissue.

Last year, British scientists also used stem cell therapy to achieve the purpose of improving mouse hearing. It is reported that a research team led by the University of Sheffield in the United Kingdom transplanted human embryonic stem cells into the ears of gerbils, so that the gerbils with acquired deafness restored the hearing ability. This study provides the first evidence that stem cells can reestablish the connection between the inner ear and the brain. Previous studies have also differentiated stem cells into auditory nerve cells, but this is the first animal experiment to successfully restore hearing by transplanting stem cells.

Marcel Rivota, a stem cell biologist at the University of Sheffield in the United Kingdom, mentioned that they used two fibroblast growth factors FGF3 and FGF10 to process human embryonic stem cells to produce two different shapes of primitives. Sensory cells: One type of cell has characteristics similar to hair cells, called ear epithelial progenitor cells (OEPs); the other looks more like neurons, called ear neural progenitor cells (ONPs). They first used a chemical drug called ouabain to destroy the auditory nerves of gerbils, but the drugs did not damage hair cells, and then transplanted ear nerve progenitor cells into their ears. After 10 weeks, some of the transplanted cells had neurites connected to the brain stem. Subsequent tests showed that many gerbils could hear a weaker sound than before, and their hearing was recovered by 46% overall.

At the time, Stefan Heller, a stem cell researcher at Stanford University, believed that the first case of human hearing therapy might be at least 15 years away. He was studying other methods to differentiate stem cells into hair cells and support cells. "The next goal of this research is to improve efficiency and regenerative capacity, determine the safety of the experiment, and prove that transplantation can bring long-term recovery before it can be considered for use in patients.

Regarding this vision treatment, the company stated that although the original intention of the trial was to prove that stem cell therapy was safe, the participants stated that their vision had improved. To be cautious, they plan to wait for all the results to come out and then announce the specific situation.

Product Description

1:Unique angles segmented hatchback adjustment design makes it more suitable for traditional massage.

 

2:Double insured knobs and long-short height adjustment foot design make the Massage Table more stable, and suitable for different Massage Therapist.

 

3:Apply to the massage parlour, beauty salon, SPA center, Hotel and family use.

 

4:Fashion style, adjustable Hatchback, Superior real wood structure, bold firm steel wire rope.

 

5:Bring you a comfortable, green, safe enjoyment.

 

We can custom any styles any size of Electric Facial Bed, Hydraulic Facial Bed, wood Facial Bed , massage table, facial bed, facial massage chair, Shampoo Chair, Barber Chair , styling chair, child chair, waiting chair, dressing mirror, reception table, pedicure spa,aluminum massage table,portable massage table, Nail Table , massage chair, master chair, trolley, Bed Cover , footstep and cushion according to your requirements.

Massage Table

Massage Table,Wooden Massage Table,Hydraulic Massage Table,Electric Massage Table

ChaoHui Beauty Salon Equipment Co., Ltd. , https://www.facialbed.nl