Expression and regulation of adrenomedullin 2 gene in ovarian follicles and its effect on follicular granulosa cells in chicken.

Summary: Imagine a tiny switch inside a chicken's egg-making factory (the ovary). This switch is a gene called ADM2. Scientists wanted to know how this switch works when a hen is getting ready to lay an egg. They found that different hormones can flip the ADM2 switch up or down. When the ADM2 switch is turned on in certain cells, it stops those cells from growing too fast. Instead, it tells them to start making a special hormone called progesterone. This helps the chicken's body properly pick and prepare the perfect egg to grow!