Two people with the same pains have different pain levels. For example both back pain but one can still indulge while others could only lay there. This apparently caused by different genes.

Scientists have struggled to explain why some people are more sensitive and less able to withstand pain. A gene known as SCN9A responsible for this. These findings could be expected in future gene therapy as an alternative in patients who experience severe chronic pain.

"By finding the gene that is responsible for the pain, it can increase the ability to conquer and control it," said Dr. Geoffrey Woods of the Cambridge University, as quoted from the Telegraph, Tuesday (03/09/2010). Dr Woods added this for biomedical researchers and doctors are looking for analgesics (pain relievers) is effective with an acceptable side effects. Therefore required a significant development of therapies and even better.

Many people in the world suffer from chronic pain resulting from injury or arthritis that affects their lives and some even cause depression.

Scientists find a gene in a study involving 578 people who suffer from osteoarthritis, pain rheumatic pain, sore pungung and other pain problems.

Discovered a protein made by this version of the gene mutations known as SCN9A open longer than usual. This could increase the activation of the nerve resulting in pain or pain sensation.

"The pain serves as an adaptive mechanism that protects us from damage to tissues and as a warning to the possibility of injury," said Dr Woods.

 With the discovery of genes of this pain, so the researchers can modify the function of SCN9A that could potentially treat conditions such as osteoarthitris. The results of this study have been published in the Proceedings of the National Academy of Sciences.