新疆伊犁锡伯族和蒙古族的苯硫脲尝味能力测定

RESEARCH ON TASTE SENSITIVITY TO PHENYLTHIOCAR-BAMIDE (PTC) OF XIBE AND MONGOL NATIONALITIES IN YILI, XINJIANG

用阈值法对新疆伊犁的锡伯族1121人和蒙古族679人的苯硫脲尝味能力进行了测定,结果表明,锡伯族中味盲率为19.98％,味盲基因频率为0.4470,平均尝味阈值为8.53±1.25;蒙古族中味盲率为15.17％,味盲基因频率为0.3895,平均尝味阈值为8.10±1.49。味盲率、平均尝味阈值和味盲基因频率在锡伯族男女间无明显差异(P>0.05),而在蒙古族中,味盲率与味盲基因频率分布男女间差异显著(P<0.01)。在上述这两个民族中,少年组的味盲率高于成年组。对同一受试者的ABO血型与卷舌能力也进行了观察和分析。

A survey on taste sensitivity to phenylthiocarbamide (PTC) in Xibe and Mongol nationalities was carried out in Yili district of Xinjiang, by using the threshold-method and totally 1800 persons (1121 Xibes and 679 Mongols) were investigated. The result showed that percentage of non-tasters was 19.98% for Xibe and 15.17% for Mongol; the taster-blindness gene frequency of Xibe and Mongol was 0.4470 and 0.3895, respectively; and the mean taste threshold was 8.53±1.25 for Xibe and 8.10±1.49 for Mongol. The incidence of non-tasters in one group (at age 17-50 years) was higher than that in another group (at age 9-16 years). There was a significant difference in taste-blindness fre-quency between males and females in Mongol but not in Xibe. The comparison by ABO blood-group gene frequencies and tongue-rolling ability between non-tasters and tasters showed no relationship to response.