Apical buds produce a growth hormone called auxin.

VOA: special.2009.10.06

Example, protein hormones are insulin which we've talked about before and glucagon, and growth hormone which we haven't talked about but that's very important during periods of life like adolescence, when rapid growth of your bones is occurring.

例如,我们以前讲过的胰岛素,还有胰高血糖素都是蛋白质激素,生长激素也是,尽管我们还没有讲过它,但它在人的青春期阶段,起着非常重要的作用,骨骼在此时期快速生长

耶鲁公开课 - 生物医学工程探索课程节选

And this particular hormone stimulates and feeds the cancer growth,essentially.

VOA: standard.2010.07.14

It took several years of further experiments and analysis, but During and his colleagues ultimately concluded that the mild stress of all that activity and interaction activated a communication channel that prompts fat cells to stop releasing a hormone called leptin, which accelerates cancer growth.

VOA: standard.2010.07.14