Abstract: This disclosure relates to the methods of imaging the kidneys and measuring renal function using the renal tracer 99mTc(CO)3(NTA) (technetium-99m tricarbonyl-nitrilotriacetic acid). The disclosure encompasses methods of imaging the kidneys and measuring effective renal plasma flow (ERPF) in an animal or human subject using renal scintigraphy, comprising administering to an animal or human subject an amount of a renal tracer, wherein the renal tracer comprises 99mTc-(CO)3(NTA). Another aspect of the disclosure are methods of measuring effective renal plasma flow in an animal or human subject, comprising administering to an animal or human subject an amount of a renal tracer, wherein the renal tracer comprises 99mTc-(CO)3(NTA), isolating a series of plasma samples from the animal or human subject after administering the renal tracer and quantitatively detecting the amount of the renal tracer in the biological samples.

Abstract: This disclosure relates to the methods of imaging the kidneys and measuring renal function using the renal tracer 99mTc(CO)3(NTA) (technetium-99m tricarbonyl-nitrilotriacetic acid). The disclosure encompasses methods of imaging the kidneys and measuring effective renal plasma flow (ERPF) in an animal or human subject using renal scintigraphy, comprising administering to an animal or human subject an amount of a renal tracer, wherein the renal tracer comprises 99mTc—(CO)3(NTA). Another aspect of the disclosure are methods of measuring effective renal plasma flow in an animal or human subject, comprising administering to an animal or human subject an amount of a renal tracer, wherein the renal tracer comprises 99mTc—(CO)3(NTA), isolating a series of plasma samples from the animal or human subject after administering the renal tracer and quantitatively detecting the amount of the renal tracer in the biological samples.

Abstract: Compositions and methods of using thereof for the prevention of sexually transmitted diseases resulting from infection with one or more of viral pathogens have been developed. The compositions contain one or more porphyrins, tetrapyrrole macrocycle compounds with bridges of one carbon joining the pyrroles. In a preferred embodiment, the compositions are administered in a formulation suitable for administration to a mucosal surface.