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24.12.2015


Hefty dose of vitamin B5 helps damaged tendons heal quicker

A hefty dose of vitamin B5 aka pantothenic acid speeds up the healing of wounds. Researchers at the French institute Inserm discovered this in the early 1980s. Their animal study showed that vitamin B5 speeded up the recovery of damaged tendons in particular, but also the healing of damaged skin.

Study
In their study, which was published in 1985 in the American Journal of Clinical Nutrition, the researchers divided 54 rabbits into three groups. One group of rabbits was given standard food; a second group was given food in which the researchers had reduced the concentration of vitamin B5 as much as possible; and a third group was given normal food plus extra vitamin B5.

Vitamin B5
The extra vitamin B5 was injected. The human equivalent of the dose that the researchers injected would be about 500 mg a day for an adult weighing 80 kg. The oral equivalent of that is about 1 gram per day.

After three weeks the researchers made an incision in the skin and tendon tissue on the rabbits' abdomen during an operation.

In the month that followed, the researchers studied the scars on the skin and tendon tissue of the animals. They took samples of the scar tissue and measured the breaking strength. The higher the breaking strength the better the wound is healing.

Results
The figure below shows the skin scar tissue recovery. On day 10 of the experiment that tissue was significantly stronger in the animals that had been given extra vitamin B5.


Hefty dose of vitamin B5 helps damaged tendons heal quicker



The effect of vitamin B5 on the recovery of tendon tissue was more convincing, as the figure below shows.


Hefty dose of vitamin B5 helps damaged tendons heal quicker



Mechanism
"The biochemical mechanism by which pantothenic acid acts on wound healing remains unelucidated", the researchers wrote. "Research along this line may be helpful in leading to understanding and control of this mechanism."



Conclusion
The researchers suspect that vitamin B5 [structural formula at right] supplementation is interesting for people who have to undergo operations, certainly if they consume low levels of vitamin B5. We also wonder whether vitamin B5 supplementation might be interesting for athletes suffering from muscle attachment damage.

Source:
Am J Clin Nutr. 1985 Mar;41(3):578-89.

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