Background: Cervical cancer is the most prevalent tumor in developing countries and the second most frequent cancer among female population worldwide. Specific human papillomaviruses and, most notably, HPV types 16 and 18 are recognized as being caus-ally associated with cervical carcinomas. The early HPV type 16 genes, E6 and E7, di-rectly participate in the in vitro transformation of primary ...

introduction: helicobacter pylori (h. pylori) is a gastric pathogen of primates and causes active chronic gastritis as well as peptic ulcers. a wide range of studies is in effect to prevent or cure helicobacter infection and thus its associated disorders. in order to test various drug regimens as well as potential vaccines against h. pylori infection, a suitable animal model is required which s...

purpose: the purpose of this study is to model cryptosporidiosis in laboratory animals. the parasites were inoculated into animalsand thenmultiplied. the process of proliferation was compared to controlcryptosporidiosis in humans. materials and methods: twenty-five laboratory mice (4-7 days of age) and twenty-five laboratory rats (5 days of age) were assigned to the category i while the categor...