Natural enzyme NMN helps reverse type 2 diabetes in mice

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2011-10-04 22:08

A natural compound found in the body, called nicotinamide mononucleotide, or NMN, is found to help diabetic help mice restore normal blood sugar metabolism. NMN is an enzyme that helps the body’s cells use energy that may work in humans to prevent or reverse type 2 diabetes.

Nicotinamide “remarkable” for improving diabetic symptoms

Shin-ichiro Imai, MD, PhD, associate professor of developmental biology at Washington University School of Medicine in St. Louis said the effect of nicotinamide for controlling diabetic symptoms in mice was “remarkable”.

The compound had a more potent effect in females, said Imai. “After giving NMN, glucose tolerance goes completely back to normal in female diabetic mice.”

For the study, published in the journal Cell Metabolism, researchers injected older diabetic mice with NMN.

Kathryn F. Mills, research lab supervisor and an equally contributing first author of the study said, “We also injected older healthy mice and found that they weren’t adversely affected. It’s good to know that even if the mice are not diabetic, giving NMN is not going to hurt them.”

Consuming a high fat diet and aging are contributors to diabetes. The researchers say a fatty diet and aging is also associated with lower levels of nicotinamide mononucleotide.

NMN is vital for the production of nicotinamide adenine dinucleotide, or NAD, which is an oxidizing agent that has several roles in metabolism.

One of the functions of NAD is activation of a protein called SIRT that boosts insulin sensitivity in the body.

The authors say NMN acts the same in humans and mice. "But whether this mechanism is equally compromised in human patients with type 2 diabetes is something we have to check,” Imai says. “We have plans to do this in the very near future.”

First author Jun Yoshino, MD, PhD, postdoctoral research associate, says the effect of the naturally occurring compound for controlling diabetes in mice is “much bigger than other known compounds or chemicals.”

In younger healthy mice with diabetes induced by a high fat diet, NMN boosted NAD levels to normal levels in females, but not completely in males.

The researchers say they’re not certain why. “…sex hormones, such as estrogen, may be important downstream for NAD synthesis.” Yoshino says.

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Comments

i was wandering when will the pill be out? so my docter can get the pill for me see if it works for my type 2 diabetes for me . or when it is the right pill for me i like to get a pathlet when it is ready be out for docters to for there patients to try
Hi Matthew: I'm not certain. This study was done on mice, meaning it would be at least several years for it to be studied properly in humans. The availability then would depend on the outcome of those trials. Until then continue to follow guidelines for controlling your diabetes that include eating healthy foods in the right quantities and exercising. Weight loss, if needed, can do much for lessening the impact of diabetes and even for the amount of medications needed to control the disease. Thanks for your question!

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