Thyroid status alters gill ionic metabolism and chloride cell morphology as evidenced by scanning electron microscopy in a teleost Anabas testudineus (Bloch): short and long term in vivo study.

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dc.contributor.authorSreejith, Pen_US
dc.contributor.authorBeyo, R Sen_US
dc.contributor.authorPrasad, Gen_US
dc.contributor.authorSunny, Fen_US
dc.contributor.authorOommen, O Ven_US
dc.date.accessioned2009-05-28T12:37:02Z
dc.date.available2009-05-28T12:37:02Z
dc.date.issued2007-12-08en_US
dc.description.abstractGill is the main organ of osmotic regulation in teleosts and chloride cells are the sites of ion transport across gill epithelium. Thyroid hormones are implicated in the regulation of osmotic balance in teleosts also. Treatment with 6-propyl thiouracil (6-PTU) inhibited the membrane bound enzyme Na+K+ ATPase in the gill while triiodothyronine (T3) injection stimulated it in a short-term in vivo study in the teleost Anabas testudineus. Na+, K+ and Ca2+ ions were also decreased in the 6-PTU treated fish and the T3 treatment increased their concentrations in the gill lamellae. The gill morphology also changed according to the thyroid status in the long term study. 6-PTU treatment altered the typical serrated morphology of the gill lamellae, while the T3 treatment reversed it. T3 injection increased the density of pavement and chloride cells as evidenced by scanning electron microscopy. The results demonstrate that physiological status of the thyroid influences gill Na+ pump activity and chloride cell morphological changes. Further, the study suggests a regulatory role of T3 on gill ions (Na+, K+ and Ca2+), Na+K+ and Ca2+ ATPase activity and the different gill cell types in A. testudineus.en_US
dc.description.affiliationDepartment of Zoology, University of Kerala, Kariavattom, Thiruvananthapuram 695 581, India.en_US
dc.identifier.citationSreejith P, Beyo RS, Prasad G, Sunny F, Oommen OV. Thyroid status alters gill ionic metabolism and chloride cell morphology as evidenced by scanning electron microscopy in a teleost Anabas testudineus (Bloch): short and long term in vivo study. Indian Journal of Experimental Biology. 2007 Dec; 45(12): 1015-21en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/58323
dc.language.isoengen_US
dc.source.urihttps://www.niscair.res.in/ScienceCommunication/ResearchJournals/rejour/ijeb/ijeb0.aspen_US
dc.source.urihttps://nopr.niscair.res.in/bitstream/123456789/5684/1/IJEB%2045%2812%29%201015-1021.pdfen_US
dc.subject.meshAnimalsen_US
dc.subject.meshCalcium --metabolismen_US
dc.subject.meshCalcium-Transporting ATPases --metabolismen_US
dc.subject.meshGills --cytologyen_US
dc.subject.meshHypothyroidism --physiopathologyen_US
dc.subject.meshLongitudinal Studiesen_US
dc.subject.meshMicroscopy, Electron, Scanningen_US
dc.subject.meshOsmotic Pressureen_US
dc.subject.meshPerciformes --physiologyen_US
dc.subject.meshPotassium --metabolismen_US
dc.subject.meshSodium --metabolismen_US
dc.subject.meshThyroid Hormones --administration & dosageen_US
dc.subject.meshTriiodothyronine --administration & dosageen_US
dc.titleThyroid status alters gill ionic metabolism and chloride cell morphology as evidenced by scanning electron microscopy in a teleost Anabas testudineus (Bloch): short and long term in vivo study.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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