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2011 | 10 | 3 |

Tytuł artykułu

Histological and ultrastructural changes of hepatocytes in red-eared turtles (Trachemys scripta elegans) during hibernation and after arousal

Warianty tytułu

Histologiczne i ultrastrukturalne zmiany w wątrobie u żółwia czerwonolicego (Trachemys scripta elegans) w czasie i po hibernacji

Języki publikacji



This research was conducted on 22 red-eared sliders during hibernation and after arousal. The material came from Poznan Zoo (Poland). Species affiliation was established on the basis of the Turtles of the World key. The examined sliders were of a similar age. The histological, histochemical and ultrastructural studies were conducted during hibernation and after arousal. Additionally analysis of liver elemental composition (C, O2, Na, Ca, Al., P, Mg and S) was performed. The results showed morphological and ultrastructural liver changes, related to hibernation process concerning shape and size of hepatocytes as well as morphology and location of cell organelles. The conducted elemental analyses revealed during hibernation the reduction of the phosphorus levels up to70-80% while after arousal there was distinct increase of oxygen, sodium and aluminum concentration noticed.
Badania wątroby przeprowadzono na 22 osobnikach płci męskiej żół­wia czerwonolicego w czasie hibernacji i po hibernacji. Materiał ten pochodził z Ogro­du Zoologicznego w Poznaniu. Gatunek żółwia określono na podstawie klucz Turtles of the Word [Ernst, Barbour 1989]. Wszystkie badane osobniki były w jednym wieku (8 lat). Przeprowadzono badania histologiczne, histochemiczne i ultrastrukturalne wątro­by. Wykonano również analizę chemiczną składu pierwiastkowego wątroby (C, O2, Na, Ca, Al., P, Mg i S). Badania morfologiczne i ultrastrukturalne wątroby wykazały zmiany w kształcie i wielkości hepatocytów w czasie hibernacji, jak również stwierdzono zmiany w budowie i rozmieszczeniu organelli komórkowych. Przeprowadzona analiza chemicz­na składu pierwiastkowego wątroby podczas hibernacji wykazała spadek poziomu fosforu o 70-80%, podczas gdy zaobserwowano wzrost koncentracji tlenu, sodu i aluminium.

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Opis fizyczny



  • Electron Microscope Laboratory, Wroclaw University of Environmental and Life Sciences, Kozuchowska 5b, 51-631 Wroclaw, Poland
  • Electron Microscope Laboratory, Wroclaw University of Environmental and Life Sciences, Kozuchowska 5b, 51-631 Wroclaw, Poland
  • Electron Microscope Laboratory, Wroclaw University of Environmental and Life Sciences, Kozuchowska 5b, 51-631 Wroclaw, Poland


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