Scientists Discover Genes Responsible For Cornea Blindness

Scientists at Singapore Eye Research Institute and A*STAR's Genome Institute of Singapore have succeeded in identifying genes for central corneal thickness that may cause potentially blinding eye conditions. These eye conditions include glaucoma, as well as the progressive thinning of the cornea, which may eventually lead to a need for corneal transplantation. The authors jointly led a multi-centre study involving 55 hospitals and research centres around the world. They performed a meta-analysis on more than 20,000 individuals in European and Asian populations...
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Eye Health / Blindness Source Type: news

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Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
One of the biggest challenges in regenerative medicine is ensuring the long-term survival and integration into tissue of any meaningful fraction of transplanted cells. Most transplanted cells simply die. Most early cell therapies achieve benefits via the signaling generated by transplanted cells, in the short period of time before they die. Numerous approaches are under development to try to ensure long-term survival of transplanted cells, but successes have so far been few and far between. Here, researchers report on one of these successes, generating retinal cells that integrate into the retina to produce tissue regenera...
Source: Fight Aging! - Category: Research Authors: Tags: Daily News Source Type: blogs
In this study, we investigated if exogenous stem cells are able to rescue a glaucoma mouse model with transgenic myocilin Y437H mutation and explored the possible mechanisms. Human trabecular meshwork stem cells (TMSCs) were intracamerally transplanted which reduced mouse intraocular pressure, increased outflow facility, protected the retinal ganglion cells and preserved their function. TMSC transplantation also significantly increased the TM cellularity, promoted myocilin secretion from TM cells into the aqueous humor to reduce endoplasmic reticulum stress, repaired the TM tissue with extracellular matrix modulation and u...
Source: eLife - Category: Biomedical Science Tags: Stem Cells and Regenerative Medicine Source Type: research
The objective of this study is to quantify the overall and cancer type-specific risks of subsequent primary cancers (SPCs) among adult-onset cancer survivors by first primary cancer (FPC) types and sex. Among 1,537,101 survivors (mean age, 60.4 years; 48.8% women), 156,442 SPC cases and 88,818 SPC deaths occurred during 11,197,890 person-years of follow-up (mean, 7.3 years). Among men, the overall risk of developing any SPCs was statistically significantly higher for 18 of the 30 FPC types, and risk of dying from any SPCs was statistically significantly higher for 27 of 30 FPC types as compared with risks in the general po...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
While I suspect that COVID-19 will feature prominently in most retrospectives on 2020, I'll say only a little on it. The data on mortality by year end, if taken at face value, continues to suggest that the outcome will fall at the higher end of the early estimates of a pandemic three to six times worse than a bad influenza year, ten times worse than a normal influenza year. The people who die are near entirely the old, the co-morbid, and the immunocompromised. They die because they are suffering the damage and dysfunction of aging. Yet the societal conversation and the actions of policy makers ignore this. There is ...
Source: Fight Aging! - Category: Research Authors: Tags: Of Interest Source Type: blogs
CONCLUSIONS: Medium and long-term outcomes of the KeraKlear indicate that this device is a viable alternative to corneal transplantation as a primary procedure in patients with non-inflammatory causes of corneal blindness, especially when corneal tissue is not available. The KeraKlear does not penetrate into the anterior chamber, and therefore, is less susceptible to the most serious complications of PK including endophthalmitis, expulsive hemorrhage, and glaucoma. The KeraKlear also has a comparable or improved adverse event rate compared to PK.
Source: Middle East African Journal of Ophthalmology - Category: Opthalmology Authors: Source Type: research
Conclusion:The restoration of visual function in glaucoma patients by the RGC replacement therapies requires appropriate protocols and biotechnology methods. Tissue-engineered scaffolds, the generation of retinal organoids, and gene therapy may help to overcome some of the challenges in the generation of clinically safe RGCs.
Source: Tissue Engineering and Regenerative Medicine - Category: Biotechnology Source Type: research
Authors: Zhang X, Tenerelli K, Wu S, Xia X, Yokota S, Sun C, Galvao J, Venugopalan P, Li C, Madaan A, Goldberg JL, Chang KC Abstract BACKGROUND: Glaucoma, the number one cause of irreversible blindness, is characterized by the loss of retinal ganglion cells (RGCs), which do not regenerate in humans or mammals after cell death. Cell transplantation provides an opportunity to restore vision in glaucoma, or other optic neuropathies. Since transplanting primary RGCs from deceased donor tissues may not be feasible, stem cell-derived RGCs could provide a plausible alternative source of donor cells for transplant. OBJ...
Source: Restorative Neurology and Neuroscience - Category: Neurology Tags: Restor Neurol Neurosci Source Type: research
In conclusion, high-dose NR induces the onset of WAT dysfunction, which may in part explain the deterioration of metabolic health. Towards a Rigorous Definition of Cellular Senescence https://www.fightaging.org/archives/2019/11/towards-a-rigorous-definition-of-cellular-senescence/ The accumulation of lingering senescent cells is a significant cause of aging, disrupting tissue function and generating chronic inflammation throughout the body. Even while the first senolytic drugs capable of selectively destroying these cells already exist, and while a number of biotech companies are working on the productio...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In this study, researchers studied 438,952 participants in the UK Biobank, who had a total of 24,980 major coronary events - defined as the first occurrence of non-fatal heart attack, ischaemic stroke, or death due to coronary heart disease. They used an approach called Mendelian randomisation, which uses naturally occurring genetic differences to randomly divide the participants into groups, mimicking the effects of running a clinical trial. People with genes associated with lower blood pressure, lower LDL cholesterol, and a combination of both were put into different groups, and compared against those without thes...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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