%0 Journal Article
%T Differentiationsof5-HTandGAScellsinthedigestivecanalsofRanachensinensistadpoles
%A Xin-Yi LI
%A Qian LI
%A Yu-Hui ZHANG
%J 动物学研究
%P 326-331
%D 2014
%R 10.13918/j.issn.2095-8137.2014.4.326
%X Inthecurrentstudy,5-nydroxytryptamine(5-HT)andgastrin(GAS)cellsinthedigestivecanalsofRanachensinensistadpolesatdifferentdevelopmentalstageswereinvestigatedbyimmunohistochemistry.Resultsshowedthatthe5-HTcellswereonlydetectedintheduodenumbeforemetamorphosisbegan,andwereextensivelydistributedinthestomach,duodenum,smallintestine,andrectumthereafter,withthehighestcountsfoundintheduodenumandrectumwhenmetamorphosiswascompleted.TheGAScellswereonlydistributedinthestomachandduodenum,andonlyrarelydetectedintheduodenumbeforemetamorphosisbegan,butincreasedinthestomachduringmetamorphosisandshowedzonaldistributioninthegastricmucosawhenmetamorphosiswascompleted.Metamorphosisisacriticalperiodforamphibians,duringwhichstructuralandfunctionalphysiologicaladaptationsarerequiredtotransitionfromaquatictoterrestrialenvironments.Duringmetamorphosis,thedifferentiationsof5-HTcellsinthegastrointestinalcanalsoftadpolescouldfacilitatemucussecretionregulation,improvedigestivecanallubrication,andhelpwater-shortagefooddigestioninterrestrialenvironments.Conversely,GAScelldifferentiationsduringmetamorphosismightcontributetothedigestiveandabsorptivefunctiontransitionfromherbivoretoomnivore.
%K Ranachensinensistadpole
%K Digestivecanal
%K 5-nydroxytryptamine(5-HT)cell
%K Gastrin(GAS)cell
%K Ontogeny
%U http://www.zoores.ac.cn/CN/abstract/abstract3501.shtml