negative regulation of establishment of blood-brain barrier
Any process that decreases the rate, frequency or extent of the establishment of the blood-brain barrier, a selectively permeable structural and functional barrier that exists between the capillaries and the brain.
GO:0010721
negative regulation of cell development
is_a
GO:0090210
regulation of establishment of blood-brain barrier
is_a
GO:0060856
establishment of blood-brain barrier
negatively_regulates
negative regulation of establishment of BBB
exact