from the results obtained the tested anions were classified into three groups : i , cl ( - ) -like anions : br- , i- and no3- , causing either no change or a negative displacement of the ach null-potential , compared to that measured in the control cl ( - ) -containing solution , and only small changes in the resting and stimulated electrical properties of the acinar cell , ii , ions less permeable than cl- : isethionate , acetate , sulphate and hippurate , showing a positive displacement of the ach null-potential and a similar or increased resting cell input resistance , and iii , methylsulphate and benzenesulphonate , causing a negatively displaced ach null-potential but showing changes in the resting electrical properties of the acinar cells characteristic of anions in group ii .
C0038720
sulphate
C0003075
anions