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- W1992481454 abstract "The aim of this study was to examine the effect of an infection with Hymenolepis diminuta on ion transport in an isolated colon and blood picture of rats. Fifty rats were orally infected with five cysticercoids of H. diminuta. The experimental groups of rats were assigned to four groups: group I - 8 days post-infection (dpi), group II - 16 dpi, group III - 40 dpi and group IV- 60 dpi. The control group comprised non-infected rats. The experiments consisted of measuring the transepithelial electrical potential difference (PD) and the transepithelial electrical resistance (R) of the rat colon under controlled conditions as well as during mechanical stimulation (MS) using a modified Ussing chamber. Ion transport was modified using inhibitors of the epithelial sodium channel (amiloride - AMI) and the epithelial chloride channel (bumetanide - BUME), and also using capsaicin (CAPSA), a substance which activates C-fibres. The experimental data presented in this study indicates that experimental hymenolepidosis inhibits sodium and chloride ion transport in the epithelium of the rat colon, with preserved tight junction continuity (except at 40 dpi) and a decreased mechanical sensitivity. The effect of capsaicin on ion transport in the rat colon was varied. In control rats it increased ionic current, and in H. diminuta-infected rats it did not cause any changes in PD. Blood picture in this study showed a statistically significantly lower red blood cells (RBC) count and haemoglobin (HGB) concentration in infected rats in comparison to non-infected. Red cell distribution width (RDW) values and platelet (PLT) count were negatively correlated with the duration of infection, whereas mean corpuscular volume (MCV) value was positively correlated. We did not observe leukocytosis during infection, and amongst the differential leukocyte counts eosinophils and basophils showed statistically significant lower values in infected rats in comparison to non-infected. Our results indicate that hymenolepidosis is associated with the activation of inflammatory mediators and stimulation of nervous fibres, which significantly affects the function of ion channels in the epithelium of the colon in the host. At the same time, a significant decrease in eosinophil count during infection suggests that such an infection did not trigger a strong immunological reaction in rats." @default.
- W1992481454 created "2016-06-24" @default.
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- W1992481454 date "2010-03-01" @default.
- W1992481454 modified "2023-10-18" @default.
- W1992481454 title "Hymenolepis diminuta: Effect of infection on ion transport in colon and blood picture of rats" @default.
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- W1992481454 doi "https://doi.org/10.1016/j.exppara.2009.10.014" @default.
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