KIT-OF-PARTS TO IDENTIFY MOTHER'S MILK MISSING FUCOSYLTRANSFERASE-2 DEPENDENT GLYCANS AND FEEDING DOSES WITH SAID GLYCANS
Described is a matrix to identify mother's milk missing fucosyltransferase-2 (FUT2) dependent glycans which comprise a line of a glycan binding protein such as a lectin or antibody suitable to bind 2′fucosyl-glycans and a line of a positive control to bind a mother's milk protein. For instance, this matrix is porous and allows for transport by capillary force of compounds of mother's milk such as glycoproteins. Especially, the glycan binding protein is the plant lectin from Ulex europaeus. A diagnostic kit comprising one or more of such matrices and a device suitable to receive such a matrix provided with a milk application window and a read-out window has been described as well. Finally a kit-of-parts comprising such a diagnostic kit and one or more feeding doses of 2′fucosyl-glycans has been disclosed.
1 . Matrix to identify mother's milk missing fucosyltransferase-2 (FUT2) dependent glycans comprising a line of a glycan binding protein and a line of a positive control to bind a mother's milk protein.
2 . Matrix according to claim 1 which is porous and allows for transport by capillary force of compounds of mother's milk.
3 . Matrix according to claim 1 wherein the glycan binding protein is the plant lectin from Ulex europaeus.
4 . Matrix according to claim 1 wherein the positive control comprises an antibody or a fragment thereof specific for a specific milk protein like lactalbumin.
5 . Matrix according to claim 1 wherein both the glycan binding protein and the positive control have been labelled with different dyes such as fluorescent dyes.
6 . Diagnostic kit comprising one or more matrices to identify mother's milk missing fucosyltransferase-2 (FUT2) dependent glycans comprising a line of a glycan binding protein and a line of a positive control to bind a mother's milk protein and a device suitable to receive such a matrix provided with a milk application window and a read-out window.
7 . Diagnostic kit according to claim 6 wherein the intensity of the band or of the colour seen on the read-out window indicates the relative amount of 2′fucosyl-glycans.
8 . Kit-of-parts comprising a diagnostic kit comprising one or more matrices to identify mother's milk missing fucosyltransferase-2 (FUT2) dependent glycans comprising a line of a glycan binding protein and a line of a positive control to bind a mother's milk protein and a device suitable to receive such a matrix provided with a milk application window and a read-out window and one or more feeding doses of 2′fucosyl-glycans such as of 100-5000 mg.
9 . Kit-of-parts according to claim 8 wherein the 2′fucosyl-glycans comprise 2′ -fucosyllactose.
10 . Kit-of-parts as defined in claim 8 for use both to identify a deficiency of 2′fucosyl-glycans in mother's milk and to supplement this deficiency.
11 . Kit-of-parts according to claim 10 to supplement the 2′fucosyl-glycans to a daily dose such as of 100-5000 mg.