- Hormones such as estrogen (or a mimic such as BPA) work by binding to specific cells.
- The hormone can enter the nucleus of the cell and bind to the DNA.
- This binding may activate or inactivate genes in the DNA.
- In turn, this affects the production of proteins encoded by the gene.
- The protein can have various effects on the cell's function.
Thus BPA is a endocrine disruptor, upsetting the delicate balance of cellular processes that are
regulated by hormones.