Extracellular fluid space in rabbit SA node and atria as studied with 14C-inulin and 14C-sucrose.
The extracellular fluid space in rabbit SA node and atrial trabeculae was measured with 14C-inulin and 14C-sucrose. A larger 14C-inulin space in SA node than in the atrial tissue, indicated a greater extracellular fluid space in the former, and could be due to caveolae on the pacemaker cell membrane.
Tripathi
O
O
Pharmacology Division, Central Drug Research Institute, Lucknow, India.
Bhatnagar
A
A
D000818:Animals; D002250:Carbon Radioisotopes; D005110:Extracellular Space / Q000378:metabolism*; D005260:Female; D006325:Heart Atria; D007444:Inulin; D008297:Male; D009206:Myocardium / Q000378:metabolism*; D011817:Rabbits; D012849:Sinoatrial Node / Q000378:metabolism*; D013395:Sucrose
D002250:Carbon Radioisotopes; D013395:Sucrose; D007444:Inulin