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Fig. 1 | Biological Research

Fig. 1

From: Involvement of K+ATP and Ca2+ channels in hydrogen sulfide-suppressed ageing of porcine oocytes

Fig. 1

Aged porcine oocytes with different manifestations of ageing. a Intact MII: matured oocytes physiologically arrested in metaphase of the 2nd meiotic division. The 1st polar body is extruded (arrowhead) and marks matured oocyte destined for fertilization. b Activated: parthenogenetically activated oocytes with spontaneous embryonic development. c, d Cell death: oocytes underwent either fragmentation or lysis, respectively. Apoptotic bodies are indicated (arrow)

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