Globally, round 7,000 rare diseases have been recognized and described, affecting an estimated 300 million individuals. About 80% of those situations are attributable to genetic components, with 58% detected in newborns and younger kids. Rare diseases are liable for roughly 30% of deaths amongst kids beneath 5. However, solely about 200,000 circumstances have been efficiently recognized by way of underlying causes, and merely 5% of rare diseases at present have obtainable therapies.
In Vietnam, about 100 rare diseases have been reported, affecting roughly 6 million individuals. Nevertheless, genetic information associated to rare situations resembling skeletal dysplasia, issues of intercourse growth, and congenital hypopituitarism stay restricted. Due to overlapping signs amongst completely different situations, prognosis by way of medical evaluation and standard testing strategies faces important challenges, significantly for genetically pushed rare diseases.
In response to this actuality, Prof. Dr. Nguyen Huy Hoang, Deputy Director of the Institute of Biology beneath the Vietnam Academy of Science and Technology, and his analysis workforce carried out a challenge titled “Genetic mutation analysis in Vietnamese patients with selected rare diseases using whole-exome sequencing technology.” The challenge, applied from 2022 to 2024, goals to make clear the genetic causes of those diseases throughout the Vietnamese inhabitants.
The evaluation revealed lots of of genetic variants in genes related to the studied illness teams. After screening primarily based on frequency, predicted practical impression, and comparisons with worldwide databases in addition to Vietnamese genomic information, the analysis workforce recognized 18–19 clinically important variants distributed throughout 14–17 completely different genes, with clear inheritance patterns noticed inside affected households.
According to the knowledgeable, the examine’s significance lies not solely within the variety of variants recognized but additionally in its novel scientific contributions and sensible applicability. The workforce efficiently developed 5 whole-exome sequencing datasets, together with corresponding pathogenic variants, for 5 completely different teams of rare diseases.
The findings have confirmed efficient in figuring out disease-causing variants in sufferers, whereas additionally offering a scientific foundation for docs to conduct genetic counselling for sufferers and their households.
In addition, the examine has helped construct a genetic database particular to the Vietnamese inhabitants. To additional develop this work, higher funding from the State and companies is required, enabling enlargement to bigger affected person cohorts and a wider vary of diseases, Hoang said.
Regarding future instructions, he mentioned the workforce will proceed implementing initiatives to gather and decode genomes, determine disease-related variants in bigger affected person teams and throughout extra rare diseases, and in the end develop a complete genomic database for Vietnamese sufferers with rare situations to help therapy.
Data on rare diseases will assist create screening panels for early detection, thereby lowering the burden on affected households and society when a toddler is born, he added./.