Inhibition of Inducible Nitric Oxide Synthase (iNOS) by Andrographolide and In Vitro Evaluation of Its Antiproliferative and Proapoptotic Effects on Cervical Cancer

Figure 1

(a, b) H&E (hematoxylin and eosin) staining of (a) control tissue and (b) cervical tumor tissues; (c, d) iNOS antibody-specific tissue staining: (c) control cervix section showing weak iNOS expression and (d) cervical carcinoma section with an elevated level of iNOS expression showing strong intensity. (e) Significantly elevated iNOS expression in cervical cancer tissue in contrast to normal control assessed by RT-PCR.

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