Increased tritiated thymidine-labeling index of bone marrow myeloblasts following BCG administration in man

1978 ◽  
Vol 4 (3) ◽  
pp. 197-199
Author(s):  
M. Rozencweig ◽  
P. Stryckmans ◽  
J.P. Fichefet ◽  
Mireille Socquet
1970 ◽  
Vol 12 (1) ◽  
pp. 39-41
Author(s):  
Yutaka Ueda ◽  
Keiji Ibuka ◽  
Masao Yamamoto ◽  
Masahiko Kuwabara ◽  
Yutaka Takahata

Blood ◽  
1974 ◽  
Vol 43 (1) ◽  
pp. 111-120 ◽  
Author(s):  
Sun I Choi ◽  
Joseph V. Simone ◽  
C. W. Jackson

Abstract Iron deficiency anemia is associated with increased platelet production. The megakaryocytic response to both moderate and severe iron deficiency anemia has been assessed in rats maintained on a low-iron diet. In animals with moderate anemia, the proportion of immature megakaryocytes and 24-hr tritiated thymidine labeling index were increased with no change in megakaryocyte concentration, size, or mitotic index. This indicates that increased platelet production is achieved by an increased rate of influx of precursor cells into the megakaryocyte compartment with an increased rate of efflux. In severe anemia, however, not only were the labeling index and the proportion of immature cells increased, but megakaryocyte size and mitotic index were significantly increased with a marked decrease in megakaryocyte concentration. This suggests that the circulating platelet mass is maintained by an increased platelet output per megakaryocyte with higher ploidy. Thus, in chronic iron deficiency anemia, megakaryocytopoiesis changes depending on the duration and degree of iron deficiency, with a more rapid turnover at first and increased polyploidy later.


1985 ◽  
Vol 15 (2) ◽  
pp. 150-159 ◽  
Author(s):  
Keisuke Araki ◽  
Masaharu Kimura ◽  
Kiyoshi Sakamoto ◽  
Reiki Nishimura ◽  
Junichi Yamashita ◽  
...  

Blood ◽  
1983 ◽  
Vol 61 (4) ◽  
pp. 812-814
Author(s):  
M Boccadoro ◽  
P Gavarotti ◽  
G Fossati ◽  
M Massaia ◽  
A Pileri ◽  
...  

The tritiated thymidine labeling index (LI%) of peripheral B lymphocytes was studied in eight myeloma patients using simultaneous immunofluorescence and autoradiography. The LI% values were low (0.3%- 5.1%), but significantly increased as compared to normal controls. In addition, there was excellent correlation between the LI% values and myeloma disease activity: lowest LI% values were observed in remission patients and the highest at the time of relapse. Simultaneous LI% evaluation of bone marrow myeloma cells in five patients gave concordant results, indicating the same kinetic behavior in both these compartments, particularly in the relapse phase. These data indicate both that circulating B lymphocytes include the neoplastic clone and that these B lymphocytes and bone marrow myeloma cells have similar kinetics.


Blood ◽  
1983 ◽  
Vol 61 (4) ◽  
pp. 812-814 ◽  
Author(s):  
M Boccadoro ◽  
P Gavarotti ◽  
G Fossati ◽  
M Massaia ◽  
A Pileri ◽  
...  

Abstract The tritiated thymidine labeling index (LI%) of peripheral B lymphocytes was studied in eight myeloma patients using simultaneous immunofluorescence and autoradiography. The LI% values were low (0.3%- 5.1%), but significantly increased as compared to normal controls. In addition, there was excellent correlation between the LI% values and myeloma disease activity: lowest LI% values were observed in remission patients and the highest at the time of relapse. Simultaneous LI% evaluation of bone marrow myeloma cells in five patients gave concordant results, indicating the same kinetic behavior in both these compartments, particularly in the relapse phase. These data indicate both that circulating B lymphocytes include the neoplastic clone and that these B lymphocytes and bone marrow myeloma cells have similar kinetics.


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