to investigate this problem , tgf control of filtration rate was examined by measuring single-nephron glomerular filtration rate ( sngfr ) during loop of henle perfusion at varying rates in rats under control conditions , after acute , moderate ( 4 % of body weight ) , iso-oncotic volume expansion and in rats treated with antibodies to atrial natriuretic peptide ( anp ) prior to the acute volume expansion .
C0027713
nephron
C0023986
loop of henle