ArticleWorld journal of gastroenterology2009
Morphology and ontogeny of dendritic cells in rats at different development periods.
Article in World journal of gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 3 citations in OpenAlex.
- α-fetoprotein involvement during glucocorticoid-induced precocious maturation in rat colon.World journal of gastroenterology · 2011Article
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6 authors at 1 institution in 1 country.
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Abstract
aimTo study the morphology and ontogeny of dendritic cells of Peyer's patches in rats at different development periods.
methodsThe morphometric and flow cytometric analyses were performed to detect all the parameters of villous-crypts axis and the number of OX62(+)DC, OX62(+)CD4(+)SIRP(+)DC, and OX62(+)CD4(-)SIRP(-)DC in the small intestine in different groups of rats. The relationship between the parameters of villous-axis and the number of DC and DC subtype were analyzed.
resultsAll morphometric parameters changed significantly with the development of pups in the different age groups (F = 10.751, 12.374, 16.527, 5.291, 3.486; P = 0.000, 0.000, 0.000, 0.001, 0.015). Villous height levels were unstable and increased from 115.24 microm to 140.43 microm as early as 3 wk postpartum. Villous area increased significantly between 5 and 7 wk postpartum, peeked up to 13817.60 microm(2) at 7 wk postpartum. Villous height and crypt depth ratios were relatively stable and increased significantly from 2.80 +/- 1.01 to 4.54 +/- 1.56, 9-11 wk postpartum. The expression of OX62(+)DC increased from 33.30% +/- 5.80% to 80% +/- 17.30%, 3-11 wk postpartum (F = 5.536, P = 0.0013). OX62(+)CD4(+)SIRP(+)DC subset levels detected in single-cell suspensions of rat total Peyer's patch dendritic cells (PP-DCs) increased significantly from 30.73% +/- 5.16% to 35.50% +/- 4.08%, 5-7 wk postpartum and from 34.20% +/- 1.35% to 43.60% +/- 2.07% 9-11 wk postpartum (F = 7.216, P = 0.005).
conclusionThis study confirms the age-related changes in villous-crypt axis differentiation in the small intestine. Simultaneously, there are also development and maturation in rat PP-DCs phenotypic expression. Furthermore, the morphological changes of intestinal mucosa and the development of immune cells (especially DC) peaked at 9-11 wk postpartum, indicating that the intestinal mucosae reached a relatively mature state at 11 wk postpartum.
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