parietaria pensylvanica/血液透析

Size-exclusion and ion-exchange high-performance liquid chromatography were used to monitor the presence of polymeric aggregates and of families of allergens of similar isoelectric point in Parietaria judaica pollen extracts. A radio-allergo-sorbent test and chromatofocusing were used for the

A major allergen, the Parj I, was purified to homogeneity from Parietaria judaica pollen by means of ultrafiltration dialysis, preparative polyacrylamide gel chromatography and affinity chromatography through a column of Sepharose-monoclonal antibody specific for Parj I. The homogeneity of the Parj

A crude extract of Parietaria judaica pollen was obtained by means of extraction, centrifugation and dialysis, and studied by means of quantitative immunoelectrophoresis. Crossed immunoelectrophoresis, using a high-titer purified rabbit antibody fraction, showed that the pollen extract contained at

A low mol. wt allergen (Pj-2) and a hapten (Pj-H3) were purified from Parietaria judaica pollen by means of long-term aqueous extraction, dialysis and gel filtrations. The yield of the Pj-2 allergen was 0.94% (w/v) of the total protein present in the aqueous extract of the pollen, while its

BACKGROUND Dose-response skin prick tests are an important tool to standardise allergen extracts and to evaluate changes in skin test response as a consequence of allergen modifications. OBJECTIVE To evaluate in vivo and in vitro characteristics of 3 different types of extracts of Phleumpratense,