Fig. 1From: Spontaneous improvement of carbohydrate-deficient transferrin in PMM2-CDG without mannose observed in CDG natural history studyMeasurements of transferrin glycosylation by MS. Each circle represents one measurement. Measurements in the same patient over time are connected by thin lines. A Loess regression curve is plotted a black dotted line. The horizontal grey line represents the upper limit of normal. Measurements include a ratio of mono-glycosylated (hypoglycosylated) transferrin to di-glycosylated (normal) transferrin, b ratio of a-glycosylated (non-glycosylated) transferrin to di-glycosylated (normal) transferrinBack to article page