Only registered users are allowed to post. To register, please click here

Should you have any problem in posting, registering, or login, please do not hesitate to contact the admin at Marshall.centre(at)gmail(dot)com. In the subject, please use "Help needed for www.helico.com"

Advertisement is not allowed. While we encourage discussion, please try not to promote your website, goods, or unproven treatment here.

This is a non-profit website. We will try our best to help anyone that has question about H. pylori and their treatment. We shall provide the most accurate answer about H. pylori. You can help us by clicking here to keep this forum alive.

Some useful guides
How to post in the forum?
Management of Helicobacter pylori infection—the Maastricht V/Florence Consensus Report
The 5th Chinese Helicobacter treatment consensus
How long should I wait before doing follow up breath/stool test?

If you are confirmed with H. pylori, in your convenient time, please help us with the symptoms survey that you are experiencing.
Symptoms survey
(contributed by frostyfeet)


此网站免费然您阅读。若想分享心得或提问,请先注册
若有困难注册,请联络站长 Marshall.centre(at)gmail(dot)com。标题请用 "Help needed for www.helico.com"
此网站不允许打广告。我们欢迎任何的讨论。但尽量不要推销没医学根据的网站,商品或治疗方案。
此网站是非盈利网站。我们会尽最大能力提供任何有关幽门螺杆菌的讯息。您的捐款可以让我们继续帮助更多的病人。

指南
如何贴文?
欧洲幽门螺杆菌治疗共识 5
第五次全国幽门螺杆菌感染处理共识报告
用药后,多久以后可以再做吹气测试?

Let's talk antibodies

Blood tests (for antibody) are used to screen for H.pylori. They remain positive for many months after treatment so can only be used as the initial test. Urine antibody is a "pregnanacy style" urine test. Accuracy is slightly less than blood tests. A negative blood test is good evidence that Hp is NOT present. Use it to exclude the diagnosis (but no test is 100% perfect remember).

Moderators: barjammar, Toni

Post Reply
Brownchikano
Posts: 22
Joined: Wed Mar 24, 2021 10:53 am

Let's talk antibodies

Post by Brownchikano »

So here is my H pylori antibody test results.
See image/attachment

My understanding is
IgG = chronic infection
IgM = acute infection
IgA= ?? Severe inflammation per labcorps guideline?

See below, From labcorps test menu website.

"Additional Information
Circulating antibodies to H pylori are predominantly of the IgG class. A systemic response of the IgA type is usually less pronounced but, if significant, may indicate a more severe inflammation. A few patients develop only antibodies to IgA. IgM antibodies are rarely found and appear to be of minor importance."


2nd question.

If I eradicated h pylori, I'll retest in 3 weeks. Should I expect my current IgG level go down if I was to check my IgG antibody like in 3 months, or will it sit at around my current level for months even after eradication?
Attachments
Screenshot_20210407-180755_Drive.jpg

Helico_expert
Site Admin
Posts: 4600
Joined: Wed Mar 02, 2011 7:20 am

Re: Let's talk antibodies

Post by Helico_expert »

IgG is long term antibody
IgA is mainly on the mucosa layer. eg. your eyes, lung, stomach, etc
IgM is when you just got an infection. It's not perfect matching to the pathogen. So it's like a draft blueprint. Once your immune system has a better understanding of what the pathogen looks like, then IgG will kick in with the best matching antibody.

So in 3 months time, if you dont have H. pylori, you would expect the IgG to drop. by how much? that's subjective. Everyone is different. Some people can remain positive for years.

Post Reply

Return to “Antibody type Tests (blood or urine antibody)”