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. 2012 May 18;7(5):e37015. doi: 10.1371/journal.pone.0037015

Figure 1. IMH photographs of VIP protein expression.

Figure 1

(A) Section of human ovary from a 22-GW-old fetus. Note the primordial follicles, weak red-brown staining indicating VIP expression in oocytes (full cytoplasmic and nuclear staining), and weak staining in a portion of the GC and stroma cells. Original magnification X400. (B) Section of human ovary from a 6-year-old girl. Note the primordial follicles with red-brown staining indicating VIP protein expression in the oocyte (mainly cytoplasmic staining and nuclear staining), and in a portion of the GC and a portion of the stroma cells. Original magnification X400. (C) Positive control for VIP protein expression of section of mouse brain. Note the red-brown staining in the sample. Original magnification X400. (D) Negative control for the same ovarian section as in panel A. Note the primordial follicles with the overall blue staining and the lack of red-brown staining. Original magnification X400. (E) Negative control for the same ovarian section as in panel B. Note the primordial follicles with overall blue staining and the lack of red-brown staining. Original magnification X400.