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UNIVERSIDAD AUTONOMA METROPOLITANA IZTAPALAPA …
The number of each cell type on the intestinal glands and villi was calculated using uuam 40X objective. At this stage, the intestinal inflammatory infiltrate is comprised of lymphocytes, mast cells, and eosinophils recruited to the intestinal Peyer patches and solitary lymphatic nodes The morphology of the intestinal glands showed the same type of epithelium cb the villi, although with a less abundant periglandular lamina propria continuous with the villus Fig.
Immunology 12—, doi: The identification and quantification of mast cells was performed using Giemsa staining Fig. Sleep deprivation Sleep deprivation was achieved using the island technique, slightly modified from the original reported by Jouvet et al.
The histological anlyses were performed with hematoxylin- eosin staining to identify eosinophils, Giemsa stain for mucosal mast cells, periodic acid Schiff procedure PAS for goblet cells, and Fontana-Masson method for enteroendocrine cells.
In brief, the rats were placed in rectangular cages with a small central cylindrical platform 4. REM sleep deprivation in rats results in inflammation and interleukin elevation. B Quantification of villi enteroendocrine cells in SS solid barsstress shaded barsand SD open bars in no-infected and infected groups.
Previous reports indicate that more than 4 days of REM sleep deprivation induce a generalized physiological breakdown Thus, the rats can get down from the platform and freely walk around the cage, reducing the immobilization stress.
How to cite this article: Summary of all changes in the number of some cells present in the intestinal mucosa of the rat duodenum, related to cbe immunity. In tissue sections, the eosinophil bilobed nucleous was also observed, as in a blood smear, but depending of the cutting plane. Partial night sleep deprivation reduces natural killer and cellular immune responses in humans.
Our results shows that, in the intestinal mucous membrane, stress and sleep deprivation, produces different effect in the cells, and this effect depends on the studied duodenal compartment, glands or villi. Archives of histology and cytology 531—21 We shown that even though sleep deprivation can be categorized as a type of stress, the main component of this is sleep loss, tuia the two stimuli have a differential effect in two compartments of the immune system, namely spleen and mesenteric lymph nodes; also, the populations responded different.
B Quantification of eosinophils in SS solid barsstress shaded ghiaand SD open bars groups in no-infected and infected groups. The water in the cage was changed daily.
Uam Guia De Estudio
Briefly, MCA is a multivariate data analytic technique that provides a simple and exhaustive analysis that allows for a detailed description of the data. The infection produced a significant increase of glandular goblet cells only for SS condition of infected group, compared to no-infected groups. UniRitter received three stars in the evaluation of QS Stars.
Goblet cells present an intense pink color when fully loaded with granules or a slight pink shade, with a clear center, when the cells have secreted their content into the microenvironment Fig. They showed a pyramidal shape, with a narrow vertex extending towards the apical surface of intestinal glands and villi but, apparently, does not reach the lumen.
Physiological reviews 9047—, doi: Experimental Groups The animals were organized into six groups of 7 animals each; the experimental conditions were as follows: Although most research on sleep deprivation has been focused on its effect over the central nervous system and its functions, the cbbs changes in the IB and the innate mucosal immunity have not gained much attention despite the potential association of gastrointestinal disorders, such as irritable bowel syndrome IBS and peptic ulcers, with sleep disorders 9 The photomicrographs obtained from guja infected groups showed an incremented cellularity in the periglandular lamina propria at the expense of an increased number of eosinophils.
UNIVERSIDAD AUTONOMA METROPOLITANA IZTAPALAPA –
Arrows indicate the increase or decrease in cell types located in intestinal villi or in intestinal glands. This observation becomes interesting since these two cell types are closely related and induce a reciprocal recruiting. Sleep deprivation also affected different cell populations in the villi of the infected animals provoking a significantly increased number of eosinophils, whereas mast cell presence was significantly diminished when compared with the infected SS group.
Nevertheless, in the present study we observe that while the number of eosinophils was increased, the number of mast cells was diminished which could be due to the cells being degranulated and are in the process of reloading granules, as described in some cases of airways allergies. Enteroendocrine cells uak be identified inside the glands, cytoplasm facing towards the exterior, with a color and texture similar to the villi Fig.
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As for the analysis realized in the intestinal mucous membrane, we demonstrated that the conditions of deprivation of sleep SD and stress have a distinguishing modulating effect, which depends on the cellular type and on its location.
However, in that study we did not evaluate other mechanisms of host defence guiia At glandular level, a significantly increased number of enteroendocrine cells under SD conditions were observed when compared with the infected SS group. Infection procedure The infection procedure was performed as previously described Note that infection in SS and SD conditions provoked a significant increase of enteroendocrine cells with respect to no-infected groups. Moreover, the composition of these cells also is different, uaam loaded goblet cells are predominant under SS conditions whereas under stress and SD conditions most goblet cells are empty secretory cellsevidenced by the presence of empty vacuoles gyia white.
Footnotes The authors declare no competing financial interests. Animals were infected with T. Mast cells in the duodenal villi.