Has anyone else (other than Dr. Malluche) confirmed the correlation of the 1-84/7-84 PTH ratio with bone histology?
Yes, per Drs. Salusky & Goodman, et. al., “Relationship between a 3rd generation assay for PTH and bone formation in children on dialysis” JASN 2001; 12:772A, Abstract A4032. Here is a key quote: “The ratio ILMA-PTH/NHT was < 1 in all but 2 HT, while the ratio was < 1 in 6 of 8 NL/LT, p<0.025." (HT=High Turnover, NL=Normal, LT=Low Turnover).