Ge Healthcare Limited

Amersham Plc

Nycomed Amersham Plc

Hammersmith Imanet Limited

Benedicte Guilbert

Erik Arstad

Anthony Eamon Storey

Marivi Mendizabal

Ian Andrew Wilson

Peter Knox

Susan Champion

Alex Gibson

Alan Michael Forster

Alessandra Gaeta

Timothy Charles Richardson

Julie Davis

Tony Storey

Synthetic analogues of lysine and glutamine are provided which function as substrates for the fibrin-stabilising enzyme Factor XIIIa even when labelled with a detectable moiety. The use of suitable protecting groups provides compounds which possess reduced susceptibility to in vivo metabolism especially by peptidases, and are hence useful agents for the diagnosis of thrombosis, embolism, atherosclerosis, inflammation or cancer.

Labelled glutamine and lysine analogues

A complex of a radiometal or paramagnetic metal ion with a metal chelating agent such as a diaminedioxime has attached thereto a substituent of formula (Y)-A-NHR)can function as a substrate for the fibrin-stabilizing Factor XIIIa. The complex is useful for the diagnosis or therapy of thrombosis, embolism, atherosclerosis, inflammation or cancer.

Labelled factor XIIIa substrates

A complex of a radiometal or paramagnetic metal ion with a metal chelating agent such as a diaminedioxime has attached thereto a substituent of formula &mdash;(Y) &mdash;A&mdash;NHR, can function as a substrate for the fibrin-stabilizing Factor XIIIa. The complex is useful for the diagnosis or therapy of thrombosis, embolism, atherosclerosis, inflammation or cancer.

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Rickmansworth, United Kingdom

Benedicte Guilbert