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[Study of interaction between contrast media and human serum albumin by the fluorescence method].

Structural changes in the human serumal albumin under the effect of roentgen-contrast media, viz. bilignost, triiotrast, endografine, iodamide, triombrine and cardiotrast, were investigated by the method of fluorescence. The complex-formation of albumin with triiodotrast, bilignost and endografine was shown to call forth a short-wave shift of the fluorescence peak by approximately 20 nm. The binding section for these substances is characterized by an association constant equalling 1.2-10(5) M-1. The authors presume that triiodotrast, bilignost and endografine cause changes in the microstructure of the aqueo-protein layer in the area of the tryptophan residue localization. As to triombine, iodamide and cardiotrast fluorescence failed to disclose their combination with the human serumal albumin.

Acetrizoic Acid↗
PubMed1976

[Renal toxicity of contrast media. Experimental study on dogs (author's transl)].

Experiments injecting Indian ink have confirmed the theory that postangiographic renal damage is due primarily to ischaemia. Cortical ischaemia is due to vascular spasm and sludging caused by contrast medium. Current and previous experimental findings suggest the following course in the pathomechanism: vasospasm reduced blood velocity--aggregation of erythrocytes--further deterioration in the circulation--microemboli--irreversible sludge formation--arterial and venous thromboses--ischaemic foci--necrosis or infarction. It is not possible to prevent this damage by alpha blocking sympathicolytic drugs.

Acetrizoic Acid↗