poate Near ban Es, December 26, Ne AATUe, pp Poa 19G2, HIGH PREVALENCE OF HIGHLEVEL sAMINO-SOBUTYRIC ACID EXCRETORS IN MICRONESIANS By Dr. B. S, BLUMBERG Nationa! Institute of Arthritis and Metabolic Diseases, National Inseituces of Health, Bethesda 14, Maryland AND Dr. S. M. GARTLER* Department of Medicine, School of Medicine, University of Washington, Seattle 5, Washington TPFERENTIAL oxerevion of S-amine-mebuitie wea ds viride wevetae cedired. aad fratiaiy data indheate that a single major gene pair is responsible for most OF the varhitiets' ©. High excretors are homogvaons for oa sintic Tecesarve gene and few ehopetors erbrer daterogs cons or beomevecous for the dominant aliele. Striking difierence~ in the prevalence of high excrevors in Various populations have been demonstrated and it appears that this genetic polvmiorphusi. tua be or considerable vague in anthrapea- Wy) | << q > O. O O a WW cn t- Cepeti ivestatat odin * Weare partictdariy interested qn utilizing this Wat toes plore thes genetic rolatieusiapes and omigedis en ovartous Pacifie peoples aud thes report extends our ObaehValiots on excretion ol & ariinbeswobuttic werd te the Mieronesians imbhabiangy the Marshall Eslands, The fact that some of the Micronesians were exposed to considerable radiation in 1454 is of special interest here. Ji ois Known that radiation exposure can temporarily at least. increase %-amino-tobutyrie acid exeretion®, and the Marshallese population permits an examination of possible long-term effects of such exposure on &-amino-zsobutyric acid excretion. The following information on the radiation exposure and present status of the inhabitants of Rongelap and Utirik was obtained fromm the reports of the Brookhaven National Laboratory*, and from Dr. R. A. Conard of Brookhaven National Laboratory. Micronesian inhabitants of Rongelap and Utirik atols, Marshall Islands, were accidentally exposed to fallout in March 1954, following thedetonation of a high-yield thermonuclear device during experiments at Bikini Atoll in the Pacifie Proving Grounds. Apis: Fellow. pee (Ar)pen REPOSITORY + COLLECTION Marsha slant, The Medical Research Center aven National Labora‘or [558okh MEM Oeph, Chice[ 7 Upton, L. L, New York :

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