Histochemical and biometric study of the gastrointestinal system of Hyla orientalis (Bedriaga, 1890) (Anura, Hylidae) | Zendy

Esra Akat | Zendy; H. ArÄ±kan | Zendy; B. GÃ¶Ã§men | Zendy

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Histochemical and biometric study of the gastrointestinal system of Hyla orientalis (Bedriaga, 1890) (Anura, Hylidae)

Author(s) -

Esra Akat,

H. ArÄ±kan,

B. GÃ¶Ã§men

Publication year - 2014

Publication title -

european journal of histochemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.754

H-Index - 42

eISSN - 2038-8306

pISSN - 1121-760X

DOI - 10.4081/ejh.2014.2452

Subject(s) - sialic acid , periodic acid–schiff stain , biochemistry , biology , stomach , glycoprotein , submucosa , mucus , chemistry , fluorescein isothiocyanate , medicine , immunohistochemistry , immunology , ecology , physics , quantum mechanics , fluorescence

This study was carried out to assess the localization of hyaluronic acid (HA) and the distribution of glycoproteins in the gastrointestinal system of adult Hyla orientalis. Histochemical analysis of the gastrointestinal system in H. orientalis showed that mucous content included glycogene and/or oxidable dioles [periodic acid/Schiff (PAS)+], neutral or acid-rich (PAS/AB pH 2.5+), sialic acid residues (KOH/PAS+) and acid sulphate [Aldehyde fuchsin (AF)+] glycoproteins. However the mucus content was not the same in stomach, small and large intestine. The mucus content of stomach included only glycogene and/or oxidable dioles and sialic acid residues. Besides these histochemical methods, the localization of HA was detected using biotinylated hyaluronic acid binding protein labeled with streptavidin-fluorescein isothiocyanate (FITC). In the extracellular matrix of the submucosa, the reaction for HA was evident. Since HA was located in submucosa beneath the epithelial layer of gastrointestinal system, it has a significant role in hydric balance, and essential to provide the gastrointestinal system integrity and functionality. According to biometric results, there were statistical differences between small and large intestine in terms of the amount of material stained positive with PAS/AB, PAS, KOH/PAS and AF/AB. Additionally, number of goblet cells in the small and large intestine was significantly different.

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