Whole Genome Sequencing Improves Rare Disease Diagnosis By Nearly A Third

Nikki Attkisson | Last Updated : November 6, 2021

About 40 percent of individuals are misdiagnosed by existing genetic screening methods, which has serious consequences for individuals, their households, and the medical facilities they utilize. Mitochondrial abnormalities impact approximately 1 in 4300 persons and result in chronic, irreversible illnesses.

Whole Genome Sequencing Improves Rare Disease Diagnosis By Nearly A Third

They were probably the more prevalent hereditary illnesses. Yet, they were challenging to identify for doctors, not only since they could impact a variety of systems & mimic a variety of other disorders.

It is believed by the top experts in genetics that for every medical condition, the solution lies in one’s genes only. Genome sequencing can help one get a cure for any disease, even without any external help. The model has studied various samples and got promising results also. To be sure about this aspect, there have been a number of studies carried out by experts at regular intervals.

Whole Genome Sequencing Improves Rare Disease Diagnosis By Nearly A Third

Prior researches have been focused on heavily chosen small groups, which has revealed that WGS could detect mitochondrial abnormalities; it is the initial study to look at its efficacy in a global health organization, the NHS.

Novel research released today in the British Medical Journal (BMJ) gives optimism to parents who have yet to receive a diagnostic & supports proposals to develop a nationwide diagnosis program centered on whole genomic sequence (WGS) to speed up identification.

37.5 percent of the diagnosis obtained by the scientists was in regions linked to mitochondrial illness. The hereditary variability revealed in such illnesses was reflected in the fact that virtually every one of those illnesses is distinct to a single respondent household.

Mitochondrial dysfunction usually affects high-energy-demanding organs like the brain, peripheral nervous system, the eyes, the heartbeat, and the periphery muscle. The research provides a crucial additional tool for the identification of mitochondrial cancer pathways in the coming.

Chinnery said: “These patients were referred because of a suspected mitochondrial disease and the conventional diagnostic tests are specifically for mitochondrial diseases. Unless you consider these other possibilities, you won’t diagnose them. Whole-genome sequencing isn’t restricted by that bias.”

As a result, a tiny proportion of newly diagnosed individuals are receiving treatment. Six people with a mitochondrial problem and nine with a non-mitochondrial disorder had potentially curable disorders, although the impact of the treatments has yet to be assessed.

Chinnery said: “Diagnostic services are fragmented and unevenly distributed across, and that creates major challenges for people with rare diseases and their families. By delivering a national program based on this genome-wide approach, you can offer the same level of service to everyone.

According to the research, the fairly large proportion of individuals having likely or probable diagnoses highlights the necessity for more research in the operational impacts of novel gene variations that may be the source of illness, but this is not definite at this time.

Also, it recommends that any severely ill people having probable mitochondrial abnormalities must be given fast triple full genetic testing so that the findings could assist direct therapeutic care. This is presently exclusively offered for kids who are gravely ill.

Dr. Ellen Thomas, Clinical Director and Director of Quality at Genomics England, said: “We are very pleased to see significant research like this being enabled by data generously donated by participants of the 100,000 Genomes Project.

It is clear from these results how their contributions to a rich and, importantly, secure dataset are critical in facilitating the genomic research that leads to insights like these that then have the potential to return value to the NHS and their patients. We look forward to seeing how these findings could support future care for patients with suspected mitochondrial disorders.”

Nikki Attkisson

With over 15 years as a practicing journalist, Nikki Attkisson found herself at Powdersville Post now after working at several other publications. She is an award-winning journalist with an entrepreneurial spirit and worked as a journalist covering technology, innovation, environmental issues, politics, health etc. Nikki Attkisson has also worked on product development, content strategy, and editorial management for numerous media companies. She began her career at local news stations and worked as a reporter in national newspapers.

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