Why aren't T1/LADAs given GAD/GABA to preserve/compensate for pancreas function?

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Vectian

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I have been looking at various research, seems that many with T1/LADA have GAD antibodies, which destroy the enzyme GAD which the body uses to create GABA. This in turn is needed for normal blood glucose function, amongst other things (e.g. low GABA is associated with anxiety and insomnia). "The GAD enzyme is primarily produced by the islet cells of the pancreas. It is the enzyme responsible for forming GABA".

So therefore people with GAD antibodies have low GABA levels, so why aren't they given a GABA supplement to compensate? The body is depleting GABA by the autoimmune process, but you can buy GABA supplements to put it back in, at least to an extent, why aren't they used? Mouse studies have shown this helps to preserve beta cell function and insulin production.

There seems some uncertainty about whether GAD antibodies go away after they have finished destroying the pancreas cells, but whether they do or not surely some GABA would be beneficial if the body is unable to produce it any more?
 
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Perhaps the amount necessary would have side effects @Vectian ? They’ve done a study on newly diagnosed children though but with small amounts:


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Perhaps the amount necessary would have side effects @Vectian ? They’ve done a study on newly diagnosed children though but with small amounts:


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I have read that, but they admit at the end that it was limited because of the restrictions on trials with children and the dose may not have been sufficient, also it is likely the destruction of cells happened quickly which is usually not the case with adults. It did find a significant decrease in glucagon production though. There are trials ongoing of Diamyd, which seems to be basically GAD (which is used to create GABA):
 
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