The latest research results show that at this stage, the proportion of people in my country who carry genetic mutations that cause genetic deafness is about 12%, that is, 100 out of every 12 people carry genetic defects that can cause hereditary deafness, which means that they are facing acquired deafness. Or the risk of having a deaf child.
Common types of hereditary deafness
And related deafness genes
●Congenital sensorineural hearing loss
Hearing impairment occurs in newborns after birth, and it is common to have moderate to severe sensorineural hearing loss.Such babies may carry the chromosomal recessive GJB2 deafness gene.
●Acquired delayed deafness
Acquired delayed deafness, commonly known as “slap hit deafness”, clinically known as “large vestibular aqueduct syndrome”.Such people carry the autosomal recessive SLC26A4 deafness gene, and once the head hit, cold, fever and other external factors occur, it is very easy to induce hearing loss to total deafness.
Some people use aminoglycoside drugs such as streptomycin, gentamicin, kanamycin, amikacin, etc., which can cause deafness.Such people carry the 12SrRNA deafness gene, which belongs to the maternal inheritance.
Deafness genes can be passed on to children. Currently, there is no medicine for hereditary deafness to intervene in advance.Therefore, it is very important for parents to do genetic screening for hereditary deafness before childbirth. Prenatal screening can not only reduce deafness and birth defects, but also guide drug-induced deafness gene carriers to use drugs safely, which can make most of hereditary deafness and its The language barrier caused by it can be avoided.