11
Table 7. Chromosome Aberrations |
Total
Chromatid
Cells with
care Age Meuigh |Abreras AasuPteny) Acentee, |Dicentri Rings Others REnormal-| Abnormal
Examined|
Control*/28~53|
2,300
"'O”*
%
(02-60)
(ont)
%
ities
%
(0-05)
0
a
9
(1.03.0)
ities
9
(10-50)
T— 3);
39
200
4.0
3.5
15
0.5
0
0.5
6.0
5.3
T— 8!
37
100
2.0
2.0
0
0
0
2.0
4.0
4.0
[t]|
2/
4/
5;
32
35
35
33
200
200
200
200
4.0
3.5
4.5
2.5
3.0
6.0
4.5
3.5
0.5
0
0
0.5
0
0
0.5
0.5
0
0
0
0
0.5
0.5
1.5
2.0
4.0
6.5
6.5
6.5
4.0
6.5
6.0
4.5
K— 6)
36
200
2.0
3.5
0.5
0.5
0
2.0
6.5
6.5
K— 93;
32
200
9.0
3.0
0.5
0.5
0
1.5
5.5
5.5
K—10|
K—1]
$5
33
200
200
3.0
4.5
4.5
3.0
0
1.0
0
0
2.0
1.0
7.0
5.0
7,0
5.0
K—
K—
K—
K—
0.5
0
K—-12/
2
200
4.5
2.0
1.0
0
0
0.5
3.5
3.9
K—13
28
200
2.0
2.0
0.5
0
0
1.0
3.5
3.5
K—16|
30
200
3.5
2.0
0.5
1.0
0.
1.5
5.0
5.0
2,590
3.9
3.3
0.5
0.3
0
13
5.3
5.1 *
Total
* Consisting of eleven healthy male.
** Not being included in ‘‘ Total chromosome abnormalities” and ‘Cells with chromosome abnormalities ".
“## A chromosome or chromosomes being missing from or additional to one or more of the seven chromosome
groups: the distribution in the remaing groups being normal.
Luke’s Hospital). No abnormal value
was obtained.
BMR:
Cases T-8, K-2 and K-12 were measured. Data were +9%, ~—2%, and —29%,
respectively. As Case K-2 was suspected of a slight enlargement of thyroid,
-""T uptake, PBI conversion rate and
Triosorb tests were added. No abnormal
result was obtained. |
H.
Internal Exposure
ICs
a.
1)
Whole Body Counting
Gammaspectrometric analyses by whole
body counting on the 13 exposed people
indicated no significant increase of '’Cs. No
difference was recognized between the curves
from the exposed persons and those from
the controls.
2)
Radiochemical Analyses of Urine
"Cs analyses were carried out on 24-hour
urine samples from 10 exposed people and
14 normal persons. The '’Cs content of
urines from the exposed people wasdistribut-
ed between 23.3+0.6 and 129.6+2.3 pCi/24
hrs. and the mean '’Cs contents were 79
pCi/2¢ hrs. urine. On the other hand, the
'"Cs content from normal urine samples was
distributed between 57.8+1.7 and 191.1426
pCi/24 hrs. and the mean '’’Cs contents were
112 pCi/24 hrs.
Considering the results of whole body
counting and urine analyses, '’Cs content of
the exposed people is not different from that
of the present normal Japanese.
*Sr+ voy
**Sr analyses were done on the pooled urine
samples collected from 3-5 exposed persons.
As the control, 3 normal samples were analysed. No significant increase was found on
the samples from the exposed persons.
Summary
Medical examinations were carricd out from
middle of January to middle of May 1964 on 18
persons exposed to fall-out in the middle Pacific