Refrence:

            Chemical constituents:

             http://www.progenebio.in/dmp/Nigella.htm

             Anti-hyperglycemic activity:

• Effects of Nigella sativa on oxidative stress and  -cell damage in streptozotocin-induced diabetic rats

              http://www.ncbi.nlm.nih.gov/pubmed/12443686

• Partial regeneration/proliferation of the beta-cells in the islets of Langerhans by Nigella sativa L. in streptozotocin-induced diabetic rats.

             http://www.ncbi.nlm.nih.gov/pubmed/12835501

• Nigella sativa seed extracts enhance glucose-induced insulin release from rat-isolated Langerhans islets

  http://www.blackwell-synergy.com/doi/abs/10.1111/j.1472-8206.2004.00275.x  

• The petroleum ether extract of Nigella sativa exerts lipid-lowering and insulin-sensitizing actions in the rat

              http://www.newsrx.com/newsletters/Obesity-and-Diabetes-Week/2004-12-     06/120620043332OD.html#