Sperm Genes Unchanged Up 600 Million Years

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 specific qualities of the man.

Researchers at Northwestern University Feinberg School of Medicine discovered which gene function is called with the Boule gene will not change throughout the evolution.

The study, published on July 15, 2010 in the journal PLoS Genetics, may have some implications for human health. The discovery is expected to enhance the understanding of male infertility or offer potential new targets 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 the unique gene structure of human sperm are similar to those 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 until such nerve damage in people with psychiatric disorders. Causes of sperm DNA damage was previously suspected because of an infection, smoking or older age.

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