猴头部冲击性脑损伤的判别

为在航空弹射救生的头部冲击伤的研究中区别脑功能性与器质性损伤的界限，使用高速动态加载机，对２４只猴头进行了不同冲击载荷的撞击实验，依据有关临床诊断标准判别，冲击后８只猴发生了单纯性脑震荡，６只猴发生了脑实质性损伤，而其中的３只猴又伴有脑震荡症状。结果表明，发生了脑震荡的猴都出现了暂短生理反射减弱或消失，呼吸和心率减慢，脑干神经细胞尼氏体有减少现象脑震荡伴有脑损伤的猴脑脊液中还检出ＣＫ－ＢＢ酶和红细     

Activation of adrenal phenylethanolamine N-methyltransferase by phosphate

Bovine adrenal phenylethanolamine N-methyltransferase is activated by inorganic phosphate. Addition of potassium phosphate to the enzyme assay mixture increased the enzyme activity 5- to 8-fold depending on the purity of the enzyme. Neuraminidase treatment of the enzyme decreased the activation by one half. The activity of the enzyme was also increased by other negatively charged ions, including chloride and sulfate. However, the activation was less than 3-fold, and pretreatment with neuraminidase did not alter the degree of activation. The high degree of activation was specific to bovine adrenal enzyme. Rat adrenal enzyme was activated less than 2-fold by phosphate and not affected at all by chloride and sulfate. These results suggest that bovine adrenal phenylethanolamine N-methyltransferase is a glycosylated protein, containing sialic acid moieties, and that this carbohydrate moiety plays a role in the activation of this enzyme. These results are also consistent with our previous finding [D. H. Park, E. E. Baetge, B. B. Kaplan, V. R. Albert, D. J. Reis and T. H. Joh, J. Neurochem. 38, 410 (1982)] that the difference in characteristics between bovine and rat adrenal phenylethanolamine N-methyltransferase is due to posttranslational modification of the enzyme.     

Expression and prognostic value of FOXP1 in esophageal squamous cell carcinoma

BackgroundForkhead box protein P1 (FOXP1) has been suggested as a prognostic marker in several malignant tumors. However, the significance of FOXP1 in esophageal squamous cell carcinoma (ESCC) is still unclear. The purpose of this study was to investigate the expression pattern of FOXP1 in normal esophageal tissue and ESCC and to analyze the clinicopathological significance and prognostic value of FOXP1 in ESCC.MethodsFOXP1 was detected by immunohistochemistry using tissue microarrays containing tumor tissues and adjacent normal tissues from 270 ESCC patients with oncological follow-up data.ResultsNormal esophageal tissues predominantly showed an exclusive nuclear FOXP1 (n-FOXP1) expression pattern, and no exclusive cytoplasmic FOXP1 (c-FOXP1) staining was found. In ESCC, the expression rates of exclusive n-FOXP1-positive, exclusive c-FOXP1-positive, both nuclear and cytoplasmic positive and complete negative were 14.4%, 28.9%, 10.4% and 46.3%, respectively. High n-FOXP1 expression was significantly correlated with decreased postoperative recurrence and distant metastasis (P < 0.05). Furthermore, elevated c-FOXP1 expression was significantly associated with regional lymph node metastasis and distant metastasis (P < 0.05). High c-FOXP1 expression had an effect on shorter overall survival (OS) time, but the difference was not statistically significant (P > 0.05). Kaplan–Meier analysis showed that ESCC patients with high n-FOXP1 expression survived significantly longer than patients with low n-FOXP1 expression. Multivariate analysis confirmed that patients with high n-FOXP1 staining exhibit good prognosis and n-FOXP1 was an independent factor for ESCC prognosis.ConclusionsOur results suggest that FOXP1 plays an essential role in ESCC progression and prognosis and may be a useful biomarker for predicting survival.     

湖南侗族的容貌特征观察

目的　探讨湖南侗族的容貌特征。方法　对湖南侗族头面部眼、耳、口、鼻、面部及毛发等 31项指标进行活体观察分析。结果　湖南侗族的容貌特征主要是 :发浓密、黑直 ,前额发际多呈三角形 ,眉毛中等 ;大多数人有蒙古褶和双眼皮 ;鼻根低平 ,鼻基上翘 ,鼻背直形或凹形 ,鼻翼宽阔且凸出 ;口裂中等 ,红唇较厚 ;颧骨体多不突出 ,颏部多后斜或直型 ,面宽 ,多为卵圆面形 ;多数人有达尔文结节 ,耳壳外展且多为椭圆形和卵圆形 ,耳垂为三角形或方形。结论　湖南侗族鼻的形态是区别于其它民族的主要容貌特征     

湖南侗族左交臂人群的指纹分析

目的　探讨湖南侗族左交臂人群的手纹特点。方法　对湖南通道侗族自治县 2 88人用油墨拓印法印取指纹图 ,放大镜下观察计数。结果　侗族左交臂人的指纹分型特点是 :尺箕 >简斗 >双箕斗 >桡箕 >简弓 >帐弓 ;简弓出现率存在明显的性差 (P <0 0 5 )。桡箕在食指的出现率、女性简弓的出现率、男性箕、尺箕和斗的出现率与对照组比较存在明显的差异 (P<0 0 5 )。结论　表明湖南侗族左交臂人群的指纹分布具有一定的特异性。     

平动汤对注意力缺陷多动障碍模型大鼠HPA轴功能的影响

目的:观察平动汤及利他林对注意力缺陷多动障碍(attention deficit hyperactivity disorder,ADHD)模型大鼠下丘脑-垂体-肾上腺轴功能的影响。方法:将6只WKY大鼠设为正常组,30只自发性高血压WKY大鼠分为模型组,利他林组,平动汤低剂量组,平动汤中剂量组,平动汤高剂量组,灌胃4周后,用放射免疫法测定大鼠血清中促肾上腺皮质激素(adrenocorticotrophic hormone,ACTH)及皮质醇的水平。结果:模型组大鼠ACTH水平高于正常组,皮质醇水平低于正常组(P0.05),提示模型复制成功。治疗后与模型组比较,平动汤中剂量组ACTH差异有统计学意义(P0.05);与利他林组比较,平动汤中剂量组ACTH差异有统计学意义(P0.05)。治疗后与模型组比较,平动汤中剂量组、利他林组大鼠血清皮质醇差异均有统计学意义(P0.05)。结论:平动汤可能是通过降低ACTH水平,提高皮质醇水平来调节下丘脑-垂体-肾上腺轴功能,达到治疗ADHD的目的。     

针刺董氏奇穴为主治疗三叉神经痛疗效观察

目的观察针刺董氏奇穴为主治疗三叉神经痛的疗效。方法临床50例三叉神经痛患者,随机分为治疗组和对照组,治疗组用针刺董氏奇穴为主治疗,对照组用常规针刺方法。结果治疗组比对照组能明显缩短疗程。结论针刺董氏奇穴为主治疗三叉神经痛较常规针刺疗法优势明显。