-

Méfgn<—
auG 12 1988

{

PECHNIQUES AND STUDIES IN THE USE OF IODINE 131
Dr, aobert Fink, Research Blochemist, Birminge

hem VoAe Hospital and Associate Clinical Pro=fessor of Physiclogical Chemistry, School of
Medicine, University of California at Los Angele:

(Abstract of a lect
eture celivere@? in s University Extension Course at
U.C.L.A. on “The Application of Nuclear Physics to the Biological and Mede=

{eal Sciences")

The metaboliem of iocine has
research duri

subject of a large amount of

two Gecades since the thyroid gland wag shown to cone
very marxel degree as ccnopared with cther tissues.
racioactive iodine became

sgo and mace it possible
under noriral cone

acel rannins

toe Le Learmsd abtut

the blicod etresm
Ens

baés ts

mwas

nots the thyrcie ecptures Lodine from

and converts it into

Cong

Pi

tha thyrai@ bernone

whieh controls

Ge 2

Same recently devciored chromatovrdphic tschmicvgs show promise of
being the tocis reculped for

the {ob cv Pillins in mush of the miesing

information esout this process and perhaps many others eas woll.

For ex-

tracer tecinmiques have hsen used in conjunction with
filter paver shromntography, a vracedure in which a tiny greplet of body

pe

flui ¢@ or tissue extract placed
tS

inci vicusi
-

—

chemical

on a sheet of filter paner is split into

«Ymponents> by a ifcquit wrien creeps down the paper

and carries the echsmical substances prasent in the cririnal droplet along
at different rates.
then eiven a chromate

Spraying the paper with « suitcble cclor reagent
m showing colsrec spots eccrrespending to the posi-

tion texon by the shemical substances present in the droplet in relatively

high concentration.

If radioactive substances are

present, nowever, pre=

Select target paragraph3