A study published in 1991, comparing the efficacy of human synthetic insulin to porcine insulin states "there is no reason to treat all insulin-requiring diabetic subjects with human insulin except those who have developed insulin allergy".

In light of this study - how was rDNA synthetic human insulin able to monopolize the US market?

The absence of highly purified porcine insulin in the US is probably (my guess) because it's cheaper to manufacture. The saturation of the US market with rDNA synthetic human insulin seems to be treating the masses with a specialized need existing in only a few individuals. But the top line of this marketing campaign must have had a good effect on the bottom-line, too. Sales reps convinced doctors to switch their patients because it was going to become nearly impossible to continue getting animal derived insulin. The insurance companies (the guys picking up the tab) must've loved this option, too. Why wouldn't they? It's better - right?

I'm going to do a self-analysis of the stuff, based on my IAA, IA and C-peptide levels. I've been on human synthetic insulin since 1985. I've never been on highly purified porcine insulin. The IAA is my insulin autoantibodies -- the antibody attacking my islets. My IA is the insulin antibody attacking the injected insulin and my c-peptide will tell me how much insulin my body is making. After 12 weeks on the highly purified porcine insulin - I'm going to do my labs again. I'm curious to see if these levels move, at all. If my c-peptide levels rise, that's a GOOD indicator what's best for Allie Beatty.

So is the best choice for me the best choice for all? Probably not. But at least I can see for myself - even if it costs me a pretty penny to get my hands on highly purified porcine insulin. Nobody said being an experimentalist was cheap. However, never exploring my options would deeply discount the value of experience.

Now that the US market is suspiciously saturated with human insulin - and many of us diagnosed within the last 10 years did not have a shot at trying porcine insulin - I'd like to set the record straight. When the pharmaceutical companies cherry pick the studies they wish to use for their gain, and not so much for your enhanced quality of life - they must've lost this study.

Please read the entire study (if you have access to it in a local library) but what grabbed my undivided attention was the sentence that says: it was observed that the action of porcine insulin was associated with... a striking increase of prolactinaemia, in relation to semisynthetic human insulin.

Okay -- so as I look deeper into the function of prolactin -- aside from some definite dopamine enhancing activities (if you know what I mean) :::wink wink::: -- it is responsible for the formation of myelin coatings on axons in the central nervous system. This is a certifiable problem that results in diabetic neuropathy and the related side effects (numbness, nerve dysfunction, i.e, ED).

Ex-queeze me? Does this say that human synthetic insulin may be a cock blocking drug?

Sorry for the blunt delivery -- but this is the truth. Why doesn't human synthetic insulin have this listed as a side effect? My guess is: if you had a choice of human synthetic insulin versus highly purified porcine insulin -- and you knew the side effects of human synthetic might take a toll on the health of your sex life -- you might be praying to the porcine gods.

Shame on the companies who knew about this study and kept it undercover so you couldn't...

While patrolling the PubMed database this weekend, I came across a very interesting study that investigated the effects of new insulins on insulin and C-peptide antibodies, insulin dose, and diabetic control. Please note - this study was published in 1983. After reading -- I invite EVERYONE to let me know if it is possible to get purified pork insulin and whether or not you have been on it-- and if you have seen a difference in your diabetes control. Please?

24 diabetic patients using bovine (beef) insulin and possessing insulin antibodies underwent a study of the immunological and clinical consequences of changes in both purity and species of their insulin. The new insulin regimes tested were one of three: a) purified bovine insulin, b) highly purified porcine insulin, and c) semisythetic human insulin.

The patients underwent 3 consecutive 4-month periods on each insulin regimen. The average insulin antibody levels changed little on purified bovine (beef) insulin; actually increased on semi-synthetic human insulin but fell substantially on highly purified porcine insulin. Okay - so this means, in lay terms that the patient's insulin antibodies (the stuff killing your islets) remained relatively the same on beef insulin but became categorically HIGH on synthetic human insulin. And most importantly - to me-the highly purified porcine insulin actually DROPPED the insulin antibodies. Of course - it would cost big pharmaceutical companies more to manufacture highly purified porcine insulin.

C-peptide antibodies fell significantly and continuously throughout the study. The slower rate of fall in C-peptide antibody levels is likely to be due to the prolonged half-life of circulating exogenous proinsulin in the presence of insulin antibody. Although insulin dose remained constant the incidence of hypoglycaemic episodes did not increase and glycosylated haemoglobin levels rose significantly when patients were on porcine insulin. The deterioration in diabetic control may have been due to greater temporal mismatch between insulin needs and insulin availability with pork or human insulin than with beef insulins, and to reduced insulin antibody levels.

The use of purer insulins which more closely resemble the human form can cause a significant reduction in levels of insulin and C-peptide antibodies. These changes may not necessarily produce better diabetic control. Recent studies have shown that a depletion of C-peptide in the body results in a greater chance of microvascular complications associated with diabetes.

This study was published around the time when all of the synthetic human insulins were sweeping the Nation. I tried calling my local CVS Pharmacy on Saturday morning to see if I could get some purified porcine insulin. No such luck. Go figure. The big guys were successful at convincing the medical community and patients that no other insulin is better. Correction - no other insulin is cheaper to manufacture and that means it is better for them. And the importance of C-peptide was overlooked entirely - or was it? C-peptide prevents the complications associated with injecting insulin - but that sounds like another marketable drug. After all - synthetic human insulin doesn't have C-peptide. REAL HUMAN INSULIN does (the way it comes out of the beta cells, in natural form, it does)!!! And as long as your body is producing insulin antibodies - you NEED their synthetic insulin (conveniently -- the only kind you can buy). Best business model - customer for life!