The glomerular ultrafiltration coefficient (Kf) can be changed by the mesangial cells producing a decrease in Kf largely due to a reduction in the area available for filtration. The following statements are made about some agents that affect the mesangial cells.
A. Norepinephrine causes contraction of mesangial cells.
B. Angiotensin II causes relaxation of mesangial cells.
C. Histamine causes relaxation of mesangial cells.
D. Atrial natriuretic factor (ANF) causes relaxation of mesangial cells.
Which one of the following options represents combination of all correct statements?
1
A and B
2
B and C
3
C and D
4
A and D