中年男性两鬓白发的生长速度等有关性状测量  

Measurement of Growth and Other Growth Related Characters of White Hairs from Both Temples of an Adult Man

作　　者：柳宇[1] 张伟[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2011年第4期110-112,共3页Journal of Northeast Forestry University

摘　　要：在985 d内,连续拔取一位中年男性两鬓的白发样本左右各12份,每份5~7根。测量其白色段的长度和距发根1 cm处头发的微观性状。用SPSS17.0软件对各性状配对样本T检验和二元定距变量相关分析。结果表明：两鬓头发生长速度差异不显著（p〉0.05）：左鬓（0.59±0.05）mm/d;右鬓（0.58±0.06）mm/d。距发根1cm处,两鬓发干细度差异不显著（p〉0.05）：左鬓（92.52±6.34）μm,右鬓（91.18±4.47）μm;髓质细度存在极显著差异（p=0.01）：左鬓（28.44±9.25）μm,右鬓（21.59±3.69）μm;髓质指数有差异（0.05〉p〉0.01）：左鬓（30.41±8.26）%,右鬓（23.59±4.21）%;鳞片游离缘间距差异不显著（p〉0.05）：左鬓（5.00±0.37）μm,右鬓：（4.78±0.16）μm。头发生长速度、距发根1 cm处发干细度、鳞片游离缘间距两侧对称。其中生长速度有季节差异。各相关性状间存在相关关系。Twelve samples with 5-7 growing white hairs each were obtained respectively from each side of temples of an adult man during 985 days.The lengths of the white segments of each sample were measured by ruler,and the microcosmic structure of the hair segments 1 cm away from their hairy root was studied.The analysis of paired-samples T test and Bivariate correlation with SPSS17.0 software were made.An insignificant difference in hair growth rate was observed between the left temple and the right temple.The average rate of the white hair growth for the left temple is（0.59±0.05）mm/d and that for the right is（0.58±0.06）mm/d.The average diameter of hair segments 1 cm away from their hairy root is（92.52±6.34）μm for the left temple and that for the right is（91.18±4.47）μm.There is an extremely significant difference in hair medullar diameter between the left and the right temples.The average medullar diameter is（28.44±9.25）μm for the left temple and（21.59±3.69）μm for the right.The average medullar index is（30.41±8.26） percent for the left temple and（23.59±4.21） percent for the right.The mean distance from scale margins is（5.00±0.37）μm for the left temple and（4.78±0.16）μm for the right.The hair growth rate,diameter of hair segments 1 cm away from their hairy root,and mean distance of scale margins are all bilateral symmetry.There is a seasonal change in hair growth for both sides of temples.And there are correlations between the characters.

关 键 词：中年男性 头发 生长速度 发干细度 髓质指数 鳞片游离缘间距 

分 类 号：Q983.62[生物学—人类学]