Influence of iron on the number of goblet cells in the small intestine of carp Cyprinus carpio Linnaeus, 1758

Krpan, Luka (2014) Influence of iron on the number of goblet cells in the small intestine of carp Cyprinus carpio Linnaeus, 1758. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

Although iron is an essential metal needed for normal functioning and survival of the animal organism, it is a part of a heavy metal group of elements which have properties of bioaccumulation and persistency and have a toxic effect. In this research the animals were subjected to the highest allowed concentration of iron in the water for a period of 14 and 105 days. The laboratory analysis was comprised of monitoring the influence of bivalent and trivalent iron on the number of goblet cells in the small intestine of carp Cyprinus carpio Linnaeus, 1758. The number and the difference in the composition of the goblet cell mucus in the epithelium of the small intestine was proved with a histochemical Alcian-PAS method. The results show that long-term exposure to iron influences the increase of AB positive goblet cells that secret acid mucus, in which sialomucins and sulfomucins prevail. It is that type of mucins that additionally enhances the viscosity of the secreted mucus which enhances its protective role in the intestine. The results show that long-term exposure to the maximal allowed concentration of iron in water can lead to significant morphological and physiological changes in the small intestine which suggest further studies of these changes and their consequences should be made.

Item Type: Thesis (Diploma thesis)
Keywords: carp, small intestine, goblet cells, iron, Alcian-PAS reaction
Supervisor: Lacković Venturin, Gordana
Date: 2014
Number of Pages: 55
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 24 Nov 2014 13:01
Last Modified: 16 Feb 2016 14:02
URI: http://digre.pmf.unizg.hr/id/eprint/3350

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