22042 Mucosal Expression of Claudins 2, 3 and 4 in Proximal and Distal Part of Duodenum in Children with Celiac Disease - Celiac.com
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Mucosal Expression of Claudins 2, 3 and 4 in Proximal and Distal Part of Duodenum in Children with Celiac Disease

Celiac.com 03/15/2010 - A team of researchers recently set out to investigate mucosal expression of claudins 2, 3 and 4 in the proximal and distal parts of duodenum in children with celiac disease. The team included Dorottya Nagy Szakál, Hajnalka Győrffy, András Arató, Áron Cseh, Kriszta Molnár, Mária Papp, Antal Dezsőfi, and Gábor Veres. They are variously associated with the Department of Pediatrics, and the Department of Pathology at Semmelweis University in Budapest, Hungary, and the Department of Medicine at the University of Debrecen in Debrecen, Hungary.

Duodenal biopsy is an important tool for properly diagnosing celiac disease. However, the issue of finding the best site for taking biopsy samples that will give the best results for diagnosing celiac disease is still not fully resolved.

Claudins (CLDNs), belong to a large group of related adherent junction proteins, which are known to express characteristic patterns in inflammatory disorders. However, doctors presently know nothing about CLDN expression in people with celiac disease. To address the situation, the team performed a comparative study to examine the CLDN 2, 3 and 4 expressions in both the proximal and distal parts of duodenum in children with celiac disease and in control subjects.

For the study, they enrolled a total of forty-seven children. Thirty-three had newly diagnosed celiac disease, while fourteen healthy children served as control subjects. The team took biopsies from proximal and distal part of duodenum, and used immunohistochemistry to detect CD3+ intraepithelial lymphocytes and CLDN 2, 3 and 4 protein expressions.

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Whether taken from proximal or distal part of duodenum, biopsies revealed no differences under macroscopic imaging, routine histology and Marsh grading.

However, in comparison to controls, patients with severe celiac disease showed significantly higher CLDN 2 expression in bulb and in distal duodenum, while non-severe celiac patients showed higher distal CLDN 2 expression. The data showed similar associations regarding CLDN 3 expression. All groups showed similar expression of CLDN 4.

The data showed that both proximal and distal mucosal duodenal biopsies are suitable for diagnosing villous atrophy in patients with celiac disease.

Finally, the team noted that increased expressions of CLDN 2 and 3 imply structural changes of tight junction in celiac disease, which may play a role in increased permeability and proliferation observed in celiac disease.

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Yes but...

I didn't read that far. Yikes... A hefty dose of perspective in that one. For anyone reading this is the post:

Hi! I'm new to the Celiac world. I have been gluten free for around seven months, but still seem to get glutened on a regular basis. I have been sick since January '16 and think that is when it triggered, but I didn't realize until October what it was. By that time I was pregnant with my little boy who is due in June. I also have an almost 4 year old daughter. I am really torn and wondering if I need to really be tested? I have very strong suspicions that I am a true celiac because my aunt has been diagnosed. Part of me says it doesn't matter, just live gluten free and assume you are, but the other part says I need to get tested so I know if my kids are at risk. So far my daughter is fine. She was grain free until after her first birthday, I plan on doing the same with my son. But I also don't want them to suffer the way I have. What would you do? The reason I don't want to get tested is I don't want to start eating it again and feel terrible while I have little kids, last year was so hard and I just want to get strong again. I also plan to bf for a few years and don't necessarily think it's a good idea to eat gluten while bf right? Thank you!

Welcome too! Sorry to hear you're suffering now. If you can nail the diet you should improve. You should also think about vitamin supplements. There's a good chance that you're suffering from one or more deficiencies as a result of the affects of celiac on your intestine's capacity to draw nutrients from your food. A good multi vitamin is a must, just make sure its gluten free and see if your doctor can refer you to a dietician as Lochella's has.

Oh I had heard his name and read some stuff about him but hadn't come across this video! Thanks!!