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. Author manuscript; available in PMC: 2011 Dec 15.
Published in final edited form as: Dev Biol. 2010 Oct 20;348(2):177–189. doi: 10.1016/j.ydbio.2010.09.019

Fig. 6. Sperm abnormalities in FABP9−/− mice.

Fig. 6

(A) Abnormalities in sperm from WT and FABP9−/− mice were evaluated at 400× magnification using dark-field microscopy. Sperm were counted and categorized as follows: tails bent at the connecting piece, midpiece or principal piece (Bent tail), carrying either a proximal droplet or distal cytoplasmic droplet (Droplet), or with abnormalities of the sperm head (Ab head) [n=7 mice/group]. Differences between WT and FABP9−/− sperm regarding head abnormalities were statistically significant (* P=0.05). (B) SEM showing a morphological abnormality of head shape in FABP9−/− sperm. (C) SEM showing a severe abnormality of the sperm head and a bent tail in FABP9−/− sperm. (D) SEM showing severe abnormality of a coiled midpiece and a distal cytoplasmic droplet in FABP9−/− sperm.