Cases often alleged decline in male fertility due to sperm DNA damage as affected by natural selection. But one study found a gene that sperm can not change until 600 million years.
DNA or Nucleic Acid Deoxyribo a nucleic acid that stores all information about genetics. DNA is what determines the type of hair, skin color and the special properties of the human.
Researchers at Northwestern University Feinberg School of Medicine found that gene function is called with the Boule gene will not change during evolution.
The results published on July 15, 2010 in the journal PLoS Genetics, may have some implications for human health. The discovery is expected to increase the understanding of male infertility or offer a potential new target for male contraceptive drugs.
“This is the first concrete evidence that shows our ability to produce sperm is very old, probably originated in the early evolution of animals 600 million years ago,” said Eugene Xu, assistant professor of obstetrics and gynecology at Northwestern University Feinberg School of Medicine, as reported from MSNNews, Friday (7/16/2010).
Xu expressed genes specific gene Boule is probably the oldest human ever found. But unique human sperm gene structure similar to that required of other living creatures that also produce sperm ranging from insects to mammals.
Sperm DNA damage has been thought to be the cause of reduction in fertility, increased risk of miscarriage to nerve damage such as in patients with psychiatric disorders. Causes of sperm DNA damage was previously thought due to infection, smoking or older age.