1. Fig. 15.1 Summary of physiological function of the incretins GLP-1 and GIP on islet cells The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer

2. Fig. 15.2 RAS metabolism and the relationship between RAS and islet function The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer

3. Fig. 15.3 Metabolism and physiological functions of vitamin D that are related to diabetes The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer

4. Fig. 15.4 Degradation of GLP-1 by the enzyme DPP IV The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer

5. Fig. 15.5 Schematic depiction of the interaction between GLP-1 activity and AT1 blockade on islets The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer

6. Fig. 15.6 Regulation of the RAS activity by vitamin D as shown in circulating (regulation of blood pressure) and in kidney (prevention of kidney diseases) RAS The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer

7. Fig. 15.7 AT1 receptor protein (A) and mRNA (B) expression in isolated islets with or without calcitriol (active form of vitamin D) treatment The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer

8. Fig. 15.8 Summary of potential interaction among GLP-1, vitamin D, and angiotensin II in the regulation of islet cell function and islet cell mass The Islets of Langerhans, Islam, Md. Shahidul (Ed.) ISBN: 978-90-481-3270-6, Springer