Related Experiment Videos
[Changes in the prostanoid content and the population of endocrine cells in jejunal biopsies from celiac children]
P Mariani1, R Pietroletti, M D D'Alessandro
1Istituto II Clinica Chirurgica, Università La Sapienza, Roma.
Insights
Children with active celiac disease show increased jejunal prostaglandin E2 (PGE2) and endocrine cells. These levels normalize with a gluten-free diet, indicating diet
Area of Science:
- Gastroenterology
- Immunology
- Endocrinology
Context:
- Celiac disease is an autoimmune disorder triggered by gluten ingestion, affecting the small intestine.
- Alterations in the intestinal endocrine cell population and prostanoid levels may play a role in celiac disease pathogenesis.
- Previous research has not fully elucidated the specific roles of prostaglandin E2 (PGE2) and thromboxane B2 (TxB2) in active celiac disease.
Purpose:
- To investigate and compare the levels of prostaglandin E2 (PGE2), thromboxane B2 (TxB2), and endocrine cell populations in the jejunum of children with active celiac disease, celiac children on a gluten challenge diet, and healthy controls.
- To assess the impact of a gluten-free diet on these parameters in celiac children.
Summary:
- Jejunal biopsies from children with active celiac disease (Group A) exhibited significantly higher numbers of endocrine cells and elevated prostaglandin E2 (PGE2) levels compared to healthy controls (Group C).
- Celiac children on a gluten challenge diet (Group B) showed a similar increase in endocrine cells but no significant change in PGE2 levels compared to controls.
- Thromboxane B2 (TxB2) levels did not differ significantly across all three groups (active celiac, gluten challenge, and controls).
Impact:
- Findings suggest that elevated PGE2 and increased jejunal endocrine cells are characteristic of active celiac disease in children.
- The normalization of PGE2 levels in celiac children on a gluten-free diet highlights the potential role of dietary intervention in modulating these inflammatory mediators.
- This study provides insights into the biochemical and cellular changes in the jejunum during celiac disease, potentially informing future therapeutic strategies.
Abstract:
Prostanoid content prostaglandin E2 (PGE2) and thromboxane B2 (TxB2) and endocrine cells population were evaluated in jejunal biopsies from celiac children; findings were compared to active celiac patients on a challenge diet. Patients were divided as follows: Group A: 14 children with active untreated celiac disease; Group B: 7 celiac children on gluten challenge who had received diet therapy for the past 2 years; Group C: 8 normal control children. Jejunal biopsies were used for endocrine cell population measurement by immunocytochemistry, using a specific marker (chromogranin), and for prostanoid radioimmunological evaluation. The quantitative assessment of the endocrine cell population in Groups A and B revealed a significantly higher number of endocrine cells (20 +/- 11.5; 18.4 +/- 9.8 n. cell/visual field respectively) compared to Group C (8.44 +/- 2.3 n. cell/visual field) (p less than 0.05). In the jejunal extract the PGE2 content (341.8 +/- 82.3) ng/g) for Group A biopsies was significantly higher than that of Group C biopsies (93 +/- 23 ng/g) (p less than 0.05. The PGE2 content (69.4 +/- +13.2 ng/g) for Group B did not show any statistically significant change. In contrast, TxB2 content in jejunal biopsies from all three groups was not significantly different.