There is an exonuclease domain on the polymerase gamma protein used to "recognize and eliminate DNA base pair mismatch occurring during DNA replication". In an article by Dr. Heidi Chial and Dr. Joanna Craig they found that mitochondria was found to have a nucleotide imbalance associated with a decrease in the reliability of polymerase gamma and the mutation rate (Chial) of the aforementioned mitochondrial DNA I mentioned. Regarding the essential importance of nuclear genes associated with mitochondrial function, one can estimate that one in five may be suffering from these mutations, but most of these abnormalities are clinical manifestations Does not occur.
Kearns-Sayre Syndrome - (KSS) is a disease caused by the deletion of 5,000 bases of mitochondrial DNA. Kearnes-Sayre syndrome develops before age 20 years. As it may be heterogeneous, it is a rare inherited disorder, that is, there is the possibility that multiple genomes may be present in the cell at any time. Unlike most mitochondrial diseases, there is no maternal inheritance. Instead, it happens occasionally. Kennedy's disease - (KD) or X-linked spinal cord and ocular muscular atrophy (SBMA) are neuromuscular diseases associated with androgen receptor (AR) mutation. Because of its endocrine symptoms associated with AR injury, it can be thought of as a variant of androgen insensitive syndrome (AIS) disease. It was named after WR Kennedy, the first neurologist to describe the illness.
Children are born every 30 minutes and mitochondrial disease occurs by the age of 10. Overall, 1 in 4,300 patients in the United States suffer from mitochondrial disease. Mitochondrial disease can be difficult to diagnose and can often be misdiagnosed in view of the various potential signs that can occur. There are several ways to check if an individual is suffering from mitochondrial disease. These include genetic diagnostic tests, genetic or biochemical tests of affected tissues (such as muscle and liver), and other biochemical markers based on blood and urine. However, our knowledge is still growing and we do not know all the genes that may cause mitochondrial disease.
Treatment of mitochondrial disease has only just begun. In addition to symptom-based management, treatment of mitochondrial disease is a process that relieves symptoms during physiological stress (such as infection, dehydration, or surgery) and uses precautionary measures to avoid mitochondrial toxins, Focus on maintaining health. Some evidence supports the use of antioxidant supplements aimed at reducing the increase in reactive oxygen species produced in disease. Evidence of these and other treatments is still evolving. Progress has been delayed for several reasons: 1) Since the 1960 's, mitochondria have been associated with human diseases and the majority of knowledge has been discovered over the past two decades. 2) Because mitochondrial disease is classified as a rare disease, research funding is limited compared to more common diseases