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Title
A Comparative Study of DNA Ploidy Pattern by Flow Cytometry and AG-NORs in Colon Adenocarcinoma
Author
Jae Man Kim, Han Sun Kim, Sae Min Kim
Place of duty
Publicationinfo
Journal of Korean Soc Coloproctol 1993 | Vol.9 No.4 | 339 ~ 351, 13 pages
Keyword
Flow Cytometry; AgNORs;
Abstract
In colon adenocarcinoma, it has been well known that the prognosis of the disease
depends on the Duke classification, histologic grade and serum CEA level.
To evaluate the relationship between conventional method(cellular differentiation by
histologic grade), argyrophilic method(Ag-NORs) and attractive method01ow cytometry),
we studied 30 cases of colon carcinoma who were operated at Department of Surgery,
Korea University Hospital, from Mar. 1987 to Feb. 1992.
The results were as follows :
1) Of the 30 cases of adenocarcinoma,21 cases(40%) were DNA aneuploid type.
Diploid type was 83.3% in well differentiate type, 57.2% in moderate differentiate type
and 33.3% in poorly differentiate type. There was a positive correlation between type of
ploidy and cellular differentiations of colon adenocarcinoma(r=0.28).
2) The cytometric S-phase had a significant difference with cellular differentiations of
colon adenocarcinoma(P=0.05) and cytometric GO/Gl phase and proliferation index had a
correlation with cellular differentiations of colon adenocarcinoma(r=-0.33, r=0.34).
3) In Ag-NORs study, the mean number of Ag-NORs was 5.68?.77 in aneuploid
type and 3.52?.75 in diploid type. The mean number of Ag-NORs had a significant
difference between dipoid types and aneuploid types(P=0.05).
4) There was a weak correlation between mean number of Ag-NORs and cytometric
G0/Gl phase,5-phase and proliferation index(r= -0.28, r=0.26, r=0.28).
5) The cytometric S-phase was 8.5?.0% in diploid type and 19.9?11.7% in
aneuploid type, Gl/Gl Phase was 86.7:k9.8% in diploid type and 75.6:In 11.5% in
aneuploid type, Proliferation index was 13.3:k9.8% in diploid type and 24.41k 11.5% in
aneuploid type. The cytometric S phase, G0/G1 phase and proliferation index had a
significant difference with ploidy pattern (P=0.006, 0.006, 0.007).
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Flow Cytometry; AgNORs;