... by cutting and removing part of the median and ulnar nerves above the elbow. The number and position of cell bodies with axons in these nerves were confirmed by retrograde labelling of the cut axons with horseradish peroxidase. The ability of these neurones to survive axotomy varies with the age...

...Kirstie A. Lawson; Roger A. Pedersen; Sara Van De Geer ABSTRACT The fate of the embryonic endoderm (generally called visceral embryonic endoderm) of prestreak and early primitive streak stages of the mouse embryo was studied in vitro by microinjecting horseradish peroxidase into single axial...

...Wiel M. Kühtreiber; Florenci Serras; Jo A. M. van den Biggelaar ABSTRACT We have injected horseradish peroxidase (HRP) and fluorescein-isothiocyanate dextran (FD) into cells and into the blastocoelic cavity of Patella vulgata embryos, before and during the interval between 5th and 6th cleavage...

... ). Following incubation, blastocysts were washed in M2 + BSA. In some experiments, FL-labelled embryos at 2 – 3 h postcavitation were also labelled by ionophoretic microinjection of a combined solution of horseradish peroxidase (HRP; Sigma Type VI, 2·5 %) and rhodamine-conjugated dextran (RD; Sigma, 2...