BMP-4 alone had no effect on FSH production , but enhanced the activin+GnRH-induced stimulation of FSHbeta mRNA and FSH secretion , without any effect on follistatin mRNA .
B-GeneOrGeneProduct O O O O O B-GeneOrGeneProduct O O O O O B-GeneOrGeneProduct O O B-GeneOrGeneProduct O O B-GeneOrGeneProduct O O O O O O B-GeneOrGeneProduct O O