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General : Premixed Insulin May Offer Better Blood Sugar Control  
     
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(1 recommendation so far) Message 1 of 4 in Discussion 
From: MSN NicknameTraveler100  (Original Message)Sent: 11/16/2008 4:31 PM

Premixed Insulin May Offer Better Blood Sugar Control

Study compared these formulations to long-acting insulin and other medications

HealthDay

Wednesday, September 17, 2008

Premixed insulin, which combines short- and long-acting versions of the hormone, results in better blood-sugar control as compared with long-acting insulin alone or oral medications, a new study finds.

But it's not clear that this tighter glycemic control translates into fewer complications and a lower mortality rate among people suffering from type 2 diabetes, researchers add.

And two types of premixed insulin -- premixed human insulin and premixed insulin analogues (genetically engineered human insulin) -- appeared to produce the same benefit.

Various premixed products are already on the market, but the results described in a study in the Sept. 16 issue of Annals of Internal Medicine may help better determine which product benefits which patient.

More than a quarter of patients with type 2 diabetes use insulin alone (16 percent) or insulin combined with an oral medication (12 percent) to help them control their blood-glucose levels.

And as the number of people overall who have type 2 diabetes continues to increase, information on the effectiveness and safety of premixed insulin is even more imperative.

Premixed insulin includes both long- and short-acting insulin together in one preparation. These products are intended to give patients more flexibility as to when they eat.

"This is supposed to treat the post-meal sugar and also the blood sugars for eight to 12 hours after injection," explained Dr. Spyros Mezitis, an endocrinologist with Lenox Hill Hospital and assistant professor of medicine at New York Presbyterian Hospital/Cornell Medical Center in New York City. "It has more flexibility."

One injection of long-acting insulin would cover 24 hours, with four short-acting injections given in-between to cover meals.

With premixed, however, patients typically only need two injections: one before breakfast and one before dinner. The first injection covers breakfast and peaks at lunch but disappears by dinner time, at which time a second injection will take care of things until the next morning, explained study lead author Dr. Rehan Qayyum, assistant professor of medicine at Johns Hopkins School of Medicine in Baltimore.

This study was commissioned by the U.S. Agency for Healthcare Research and Quality.

After analyzing findings from 45 previous studies, the authors concluded that premixed insulin analogues and premixed human insulin provided similar blood-sugar control.

The analogues seemed to be more effective in lowering post-meal glucose levels, they said.

The premixed analogues also appeared to be more effective than long-acting insulin analogues and pills in decreasing hemoglobin A1c (a measure of blood-sugar control over time) and post-meal glucose levels.

On the other hand, premixed analogues appeared less effective than long-acting insulin, but better than oral pills, in decreasing fasting glucose levels.

"In terms of clinical practice, what it basically is saying is that if you want to replace premixed human insulin with premixed insulin analog, both seem to work pretty much the same," said Qayyum.

However, there will be individual patients who react differently to different formulations and may do better with long-acting insulin, for instance, he added.

Also, for individuals taking oral medications whose blood sugar is not well controlled, "premixed analogue is one option that can be looked at instead of titrating up or manipulating these oral diabetic agents," Qayyum said.

And, Qayyum emphasized, there is almost no data on how these benefits affect clinical outcomes, meaning the various, severe complications of diabetes such as death, blindness and kidney failure. Longer follow-up studies are needed to answer those questions, he said.


HealthDay



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 Message 2 of 4 in Discussion 
From: MSN NicknameSamQKittySent: 11/17/2008 8:07 PM
Well, I've not done a scientific study, but every single person I've ever communicated with who was on pre-mixed did not have good control.  They struggle to maintain reasonable levels unless they eat exactly the same thing at exactly the same time of day every single day, which isn't practical for many people, and they also experience a lot of lows (for the same reason.)
 
There are many on this board and others who take a basal insulin combined with a rapid and have excellent control.  I think it just depends on how involved one is willing to be in managing one's blood glucose...how often one is willing to test and correct, if necessary.
 
Ruth

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 Message 3 of 4 in Discussion 
From: MSN NicknameItsme_WayneSent: 11/17/2008 10:33 PM
I just had a doctor appointment and the doc told me they are trying to get people away from mixes, because people are NOT doing well on them.
Also. my own observation has shown me that too!
Why would you want to commit to insulin mixes and be forced into such strick action timing? If you like a challenging life, I guess it is ok! I sure wouldn't!
Lantus and a fast acting or pumping are the best choices for now! I don't think there is any rocket science here!
Itsme Wayne

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 Message 4 of 4 in Discussion 
From: MSN NicknamealisaSC63Sent: 11/19/2008 4:26 PM
I absolutely agree that mixed insulins are not the best choice for good control. However, this article did not compare mixed insulins to a lantus and log combo. It compared it to long acting only or oral medication.

Premixed insulin, which combines short- and long-acting versions of the hormone, results in better blood-sugar control as compared with long-acting insulin alone or oral medications, a new study finds.

So in this case it may be a better choice, although far from the best choice available. I really wonder how they come up with these studies.

alisa


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