Oral administration of transgenic tobacco leaf to non - obese diabetic mice reduced lymphocyte infiltration in the pancreas , helped preserve insulin - producing beta - cells , and was associated with reduced blood and urine glucose levels 給非肥胖糖尿病老鼠口服給藥轉(zhuǎn)基因煙草葉,能減少胰臟的淋巴細(xì)胞浸潤,幫助保護(hù)產(chǎn)胰島素細(xì)胞,隨之降低血和尿中的葡萄糖水平