Essor of Physiology, Faculty of Science, Ain Shams University for his kind support and guidance throughout this work and for providing the necessary funding and laboratory facilities.20. 21. 22.Tong et al. BMC Endocrine Disorders 2010, 10:4 http://www.biomedcentral.com/1472-6823/10/RESEARCH ARTICLEOpen AccessEarly limited nitrosamine exposures exacerbate high fat diet-mediated type 2 diabete