loc.
o EXPOSED
lo
© UNEXPOSED
30 —
a COMBINED WITH STANDARD
|
|
.
.
:
® UNEXPOSED 0 COMBINED
o EXPOSED
379
20,3901 7 *
*
¥? 23.830 + 0.5234 x
ERROR MEANS
r=0.4447 **
201 }
y? 2.24 + 0.671 «
42.31
|
|
i
mg PERCENT
|
PERCENT
194
g/kg BODY WEIGHT
PERCENT
|
FO
— 1.52
80 —
* * CORRELATION WITH AGE
SIGNIFICANT AT I% LEVEL
|
9O— * * CORRELATION WITH AGE
SIGNIFICANT AT 1% LEVEL
1Qr~
ee
|
|
|
20
30
40
50
60
AGE
70
8c
|
ot
90
Figure 46. Potassium, males (1961 and 1965).
oe
:
90
80 f-
I
|
T
COMBINED WEIGHTED DATA *
2 EXPOSED
@ UNEXPOSED
3 COMBINED WITH STANDARD
ERROR MEANS
|
7Oh
PERCENT AGING
—
ing tissue. In the Marshallese the high incidence
of adenomatoid goiter in the more rapidly pro-
|
-
40
liferating thyroid glands of the children maypos-
sibly represent premature appearanceoflesions
which are knownto occurlater in life and thus in
a sense represent an aging process. On the other
=
30-
* COEFFICIENT FOR AGE
CORRELATION OF EACH
CRITERION USED TO WEIGHT
SCORES BEFORE SUMMING
20/-
lee
30
occurs relatively soon after irradiation, while
malignant lesions of the skin would not become
manifest until later in this more slowly proliferat-
4
50;
|
80
proliferating cells of the bone marrow, leukemia
|
60
AGE
|
70
related to rapidity of cell proliferation (generation
cycle) in a particular tissue, 1.e., with more rapidly
|
:
|
60
manifest. One aspect of this phenomenon may be
7
y? 0.51+0.38 x +0.01 x?
50
at an earlier time than it would ordinarily be
|
a
r= 0,99 **
nl
40
Figure 47. Cholesterol (1957).
T
o
30
i
7
4
hand, the fact that no tumors (except benign nevi)
have been notedin the heavily irradiated skin of
these people might indicate a longer induction
period dueto slowercell turnover of the skin.
1Or
;
ol
20
** CORRELATION WITH AGE
7
SIGNIFICANT AT 1% LEVEL
|
30
|
40
|
50
60
AGE
|
70
|
80
Figure 48. Biological age scores.
|
Lo
90
In considering future aging studies in the
Marshallese it is hoped that moresensitive tests
of vigor and organ function suitable to the condi-
tions of study may be used. However, it must be
borne in mind that such subtle aging effects may
not become detectable by ordinaryclinical means