Objective To study the gene frequency of handedness in Xibo and Han nationalities of Liaoning province to provide data for genetic of human Anthropology.Methods We judge the left-handed or right handed people by mutiple observations(writing,throwing,using scissors).Results The dominant gene frequency of handedness was 0.8517, the recessive gene frequency of handedness was 0.1483 in Liaoning Xibo nationality.The dominant gene frequency was 0.7895 and the recessive gene frequency was 0.2105 in Han nationality.Conclusion There were significant diffrences in gene frequencies of handedness between Han and Xibo nationalities with no obvious differece between male and female.

In this study,the new extraction technique of soybean bioactive minor peptides from defatted soy flakes hydrolysized by crude complex trypsinase and neutral proteinase was set up.Optimal condition of pretreatment and hydrolyzing by crude complex trypsinase was given by enzyme quantity of 9 000 U·g-1,temperature 55℃,pH 8.5,time 6 h,under the condition of 5.0% substrate concentration.And the optimum condition of neutral proteinase hydrolysis was given by enzyme quantity 8 500 U·g-1,pH 7.5;temperature 45℃;treatment time 2 h.Under this condition,the ratio of soybean minor peptides reached 73.98 %.And the quality standards of soybean bioactive minor peptides were also established.

调查了沈阳市市郊两个群体锡伯族及汉族的拇指外翻特征,对拇指外翻基因频率的分布进行了分析。结果表明:辽宁锡伯族拇指外翻显性基因频率A=0.4791、隐性基因频率a=0.5209。辽宁汉族拇指外翻显性基因频率A=0.8482、隐性基因频率a=0.5158。辽宁锡伯族男、女群体隐性基因频率在群体中的分布无显著差异(u=1.275、P>0.05)。辽宁汉族男、女群体隐性基因频率在群体中的分布无显著差异(u=0.7 045、P>0.05)。辽宁汉族男、女群体之间无显著差异(u=0.162、P>0.05)。

Objective To study the distribution of gene frequency of two kinds of genetic traits including eyelash and Mongolia wrinkle(inner canthus wrinkle) in Xibo and Han nationalities of Liaoning to provide data for genetic of human Anthropology.Methods To observe the length of eyelash and the existence of Monglia wrinkle.The eyelash longer than 8 ㎜ belongs to autosomal dominant inheritance,eyelash shorter than 5㎜ belongs to autosomal recessive inheritance.Mongolia wrinkle(down from the up eyelid's internal angle) belongs to autosomal dominant inheritance,non Mongolia wrinkle belongs to autosomal recessive inheritance.Results The frequencies of short eyelash in Liaoning Xibo and Han nationalities were 32.76% and 19.70% respectively,the gene frequencies of autosomal recessive inheritance were 0.5724and 0.4439 respectively.The frequencies of non Mongolia wrinkle were 15.41% and 5.42%,the frequencies of autosomal recessive inheritance were 0.3925 and 0.2328 respectively.Conclusion No significant sexual difference was found in the frequencies of two genetic traits between the two nationalities compared with Liaoning Han nationalities,Liaoning Xibo nationality has a higher frequency of short eyelash and no Mongolia wrinkle.Compared with other populations,Liaoning Xibo nationality has a middle frequency for short eyelash and a higher frequency for non Mongolia wrinkle.

Objective To study two kinds of tongue moving types including rolling and folding tongues in Xibo and Han nationalities of Liaoning to provide data for genetic of human Anthropology. Methods Firstly the two kinds of tongue moving types were demonstrated for the investigated and they were told to practise before the investigation.Results The freqencies of rolling tongue in Liaoning Xibo and Han nationalities were 71.88% and 66.01%, the freqencies of folding tongue were 13.94% and 3.2% respectively.Conclusion No significant sexual difference was found in the frequencies of two tongue moving types in the two nationalities, Liaoning Xibo nationality has a higher frequency of folding tongue compared with other populations.

本文调查了辽宁锡伯族及汉族群体的前额发际出现率和基因频率分布,同时也进行了各民族间出现率及基因频率的比较.研究结果表明:辽宁锡伯族前额发际平齐出现率71.88%、隐性基因频率0.8478;汉族前额发际平齐出现率74.88%、隐性基因频率0.8653.两民族前额发际平齐出现率及基因频率性别间无显著差异.与国内其他民族的相比,辽宁锡伯族及汉族群体前额发际平齐出现率及基因频率均处于较高水平.

Aim: To study the change of blood flow velocity and skin temperature of the random pattern flap during the process of healing under the regulation of nerve growth factor(NGF). Methods: The animal model of the random pattern flap in rat back was adopted. NGF 66. 7 μg were locally injected once only in experimental group after operation with auto-control. The changes of blood flow velocity and skin temperature of random pattern flap were observed continuously by using laser and fiber optic techniques. Results: The blood flow velocities of the end, middle and pedicle of the random pattern flap in the experimental group[ (0.94 ± 0.32), (1.09 ± 0.53) and (1.11 ± 0.94) mm/s] were obviously faster than those in the control group[ (0.85 ± 0.29), (0.96 ± 0.31) and (1.01 ± 0.34) mm/s] 1 day after operation(t = 2.39, 1.98 and 2.13, P < 0.05). The blood flow velocities of the middle and pedicle of random flap in the experimental group [ (0.99 ± 0.42), (0.96 ± 0.25) mm/s] were very significantly faster than those in the control group[ (0.83 ± 0.37), (0.80 ± 0.41) mm/s] 5 days after the operation(t = 2.6 and 3.31, P < 0.01). The skin temperatures of the middle and end parts were (30.91 ± 1.13), (30.15 ± 0.92) °C 1 day after the operation and that of the pedicle part was (30.52 ± 0.62) °C 3 days after the operation in the experimental group, significantly higher than those in the control group[ (28.95 ± 1.06), (29.05 ± 1.23) and (29.31 ± 1.19) °C respectively] (t = 2.12, 1.99 and 2.31, P < 0.05). Conclusion: NGF can promote the survival status by increasing blood flow velocity of the ultra-long random flap.