“…,fluoride caused degeneration and necrosis of the tubular cells, renal … renal function parameters including elevated contents of serum creatinine ( Cr ), serum uric acid (UA), blood urea nitrogen (BUN), and the activities of urinary N-acetyl-… sodium-potassium adenosine triphosphatase (Na+/K+-ATPase) and acid phosphatase (ACP) in the kidney.”