Method for determining likelihood of an inflammatory gastrointestinal tract disease

A method for determining likelihood of an inflammatory gastrointestinal tract disease, comprising

• diluting a biological sample of a human subject in an aqueous solution to obtain a diluted sample;
• contacting the diluted sample with 8-anilinonaphthalene-1-sulfonic acid as modulating agent to obtain a pre-measurement sample;
• forming a measurement sample by contacting the pre-measurement sample with a reagent, said reagent comprising a peroxidase enzyme and a label selected from europium chloride and terbium chloride;
• incubating the measurement sample;
• exciting the measurement sample;
• and
• measuring time-resolved luminescence signal of the label in the measurement sample and determining an increased likelihood of an inflammatory intestine disease of the human subject if the luminescence signal is at least 112 percent (-%) higher than for a control sample from a human subject without an inflammatory intestine disease.