I've been taking Promacta for the past 9 months. As most of you who take it know, besides the Complete Blood Count (aka CBC) test, you also get a Comprehensive Metabolic Panel (aka CMP) test as well. This is to check if the liver is having problems metabolizing the Promacta. Elevated AST or ALT values are indicative of a problem. Anyhow, these regular CMP tests have popped up an issue. An issue which seems to be quite relevant and helpful, for me at least. See if it is relevant for you with a simple scan of old CMP tests - especially if there is a suspicion of gluten sensitivity.
On most of my CMP tests the Creatinine level has been within normal range. On the high side, but within range. In a few tests, they have jumped out to an out of range high. In my latest test this out of range high happened again. Also on that test, my platelet count was a bit lower than expected - as described
here.
Following the lead of some other PDSA members who closely scrutinizing their lab results, I decided to see if I could do a little research and see what I could come up with. I wondered if Celiac and gluten reactions could be linked to Creatinine levels. But how?
First I found out that measuring
Creatinine
level is used as an indicator to Kidney function in the CMP test. The higher the blood Creatinine level, the less it is being removed by the Kidneys. Thus poor function. On the surface, high out of range Creatinine looks like Chronic Kidney Disease. Thus my doctor has marked CKD on my paper work! Blah. Next, I reread the Wiki article on
Celiac.
That a Celiac 'flair' is a release of IgA antibodies into the blood stream. A release for the antibodies to find the evil gluten in the gut and destroy it. Then I stumbled across a
Celiac blog
which talked about how
'IgA Nephropathy'
is an issue for Celiacs. That the IgA antibodies in the blood can deposit in the kidney and cause reduction in kidney function. When/If the IgA clears, kidney function returns.
So there it is. A Celiac flair causes IgA to be released. Some IgA deposits in the kidneys causing reduced function. The reduced function results in elevated Creatinine levels in one's blood test. It's simple my dear Watson.
Now, can I leverage the relation for platelets? I looked back at old tests and compared platelet counts when Creatinine was normal and when it was high. Check if a Celiac flair (high Creatinine) had a affect on counts. Low and behold, it did. Every time there was a flair my counts were unexpectedly lower by 15 to 30 points. Nice.
Hope you find this useful.