A study by scientists at the university of Cambridge reveals drugs given to heart patients to lower cholesterol may be of further keeping patients blood vessels feeling younger.

Patients suffering from advanced heart disease in effect have arteries that have aged faster than the rest of their bodies.

The report in the publication Circulation Research says early tests show that statins may be able to hold back the process plus adding that the same drugs could also prevent damage elsewhere in the body.

Statins protect against heart attacks by reducing cholesterol levels and subsequent damage to the vessel wall - this research has shown they may also enhance the blood vessels' natural repair mechanisms.

Statins are seen as a key tool in the fight against heart disease, and in low doses have been made available "over-the-counter" at pharmacies.

While it known that they can lower cholesterol levels, this did not fully account for the benefits experienced by some patients, and evidence is growing that they can boost the function of the cells lining the heart arteries.

The Cambridge study adds to this evidence as the study will reveal how statins do this.

Cells in the body can only divide a limited number of times, and in patients with heart disease, the rate of division in these arterial cells is greatly accelerated - dividing between seven and 13 times more often than normal.

As the cells reach the limit of these divisions, they can suffer DNA damage, and do not work as well.

One of the important roles of these cells is to keep the artery clear of fatty "plaques" which can expand and block them, causing angina or heart attack.

The research discovered that statins seem to increase levels of a protein called NBS-1, which is involved in the repair of DNA within cells. This means they may be able to hold off the effects of old age in the artery wall for longer.

Lead researcher Professor Martin Bennett is quoted as saying that it was an exciting breakthrough to find that statins not only lower cholesterol but also rev up the cells' own DNA repair kit, slowing the ageing process of the diseased artery.

The Professor also added the thought that the DNA repairing effects of the statins could extend to other cells thus protecting normal tissues from DNA damage that occurs as part of chemotherapy and radiotherapy for cancer, potentially reducing the side-effects."

In response to the report the British Heart Foundation added: Too much cholesterol in the blood induces a repeated cycle of damage and repair in the blood vessel wall which results in a heart attack if the repair mechanism is inadequate.

Statins protect against heart attacks by reducing cholesterol levels and subsequent damage to the vessel wall - this research has shown they may also enhance the blood vessels' natural repair mechanisms.