TNS1 and cardiovascular disorder: And the study and understanding of precise mechanisms of penetration/transport of cardiospecific Tns will increase their diagnostic value and validate new methods for diagnosing cardiovascular diseases (CVD) through the use of other biological fluids, in particular non-invasively obtained fluids, since their collection has a number of advantages (for example, painlessness and atraumatic nature, lower risk of introduction of blood-borne infections and the possibility of obtaining biomaterial without the involvement of medical personnel) over the use of blood as a biomaterial.