Effect of (+/-)-, (+)- and (-)-gossypol on the lactate dehydrogenase-X activity of rat testis

The effect of (+/-)-, (+)- and (-)-gossypol on testicular lactate dehydrogenase-X (LDH-X) was studied in vitro and in vivo. It was found that racemic gossypol and the two optical enantiomers had similar inhibitory effects on rat testicular LDH-X in vitro. However, neither racemic gossypol nor the enantiomers exhibited an inhibitory effect on testicular LDH-X in vivo. It is concluded that inhibition of testicular LDH-X is not likely to be the mechanism of the antifertility action of gossypol. The inhibition of testicular LDH-X in vitro by all three preparations of gossypol is probably non-specific.     

VACUOLE SIGN AND SMALL NODE SIGN IN EARLY PERIPHERAL LUNG CANCER PATHOLOGIC BASIS AND DIAGNOSTIC VALUE

Radiologic and pathologic mani;estations of 30 peripheral pulmonary masses around l.5-3 cm in dia- meter were compared to the pathologic basis of va- cuole sign and small node sign on tomogram. Stati stics of 100 conventional X-ray tomograms of peri- pheral pulmonary masses about l-3 cm in diameter suggested that the vacuole sign and small node sign, more common in early peripheral lung cancer than in tuberculoma, are valuable for differentiating early peripheral lung cancer from tuberculoma.     

成本核算在医院管理中的应用和进展

目前,我国医疗总费用的增长速度大大超过了国民经济和财政收入的增长速度[1]。卫生经费投入不足,药费居高不下,政府、企业不堪重负,医疗制度改革势在必行。成本核算是医院经济管理的基础工作,核算工作的深度和层次直接影响医院成本管理的成效。1医疗成本核算的概念医疗成本是卫生服务过程中所发生的物化劳动和活劳动耗费的总和。它由以下6大类成本构成:劳务费、业务费、公务费、原材料费、固定资产折旧费和管理费。医疗成本核算是按照《医院财务制度》有关成本费用开支范围的规定,核算医院在医疗服务过程中所支出的物质消耗、劳务报酬以及有…     

"提高意识"活动在大学英语精读课中的体现 --对医学护理专业学生精读课改革的重新思考

语法翻译教学法多年来一直主宰着大学英语精读课的教学。随着中国经济突飞猛进的发展,各行各业的人们与国外同行交流的机会和要求也随之增加。面对社会发展而带来的这种变化,显然,古老传统的教学方法已不能适应。通过具体详尽的理论分析,对语法翻译教学法提出了自己的看法。     

Inhibition on Telomerase Activity and Cytotoxic Effects by Cisplatin in Cultured Human Choroidal Melanoma Cells

Purpose: To study the changes of telomerase activity and cytotoxic effects by Cisplatin; cis-dichlorodiamine platinum (CDDP) in cultured human choroidal melanoma. Material and Methods: The primary cultured human choroidal melanoma cells were cultured in the presence and absence of CDDP with different concentration and time respectively. The toxic effects were evaluated by MTT and the level of telormarse was detected by PCR-ELISA assay. And the relationship between telomerase activity and cytotoxic effects were analyzed by a correlation analysis.Results: Following the increase of the concentration and the time of CDDP, gradually repressed telomerase activity was detected in cultured cells. Meanwhile, the restrain rate of the cells increased. The telomerase activity at 24h and 1μg/ml was repressed significantly compared with the control cells. However, the appearance of cell death lagged behind the decreasing of telomerase.Conclusions: CDDP is an effective telomerase inhibitor in cultured choroidal melan     

青少年型帕金森病的临床特征

目的　探讨青少年型帕金森病 (PD)的临床特征。方法　对 2 8例青少年型PD患者的临床资料进行回顾性分析。结果　 2 8例中 5例有家族史 ,呈常染色体隐性遗传 (AR JP) ;症状轻、病程长 ,症状常左右不对称 ,腱反射活跃和症状波动较常见 ;头部CT或MRI检查一般正常 ;对多巴制剂反应良好 ,但其所诱发的症状波动出现早。与散发性PD患者相比 ,AR JP患者发病年龄更早 ,为 (2 0 6± 5 6 8)岁 ,病程更长 ,为 (9 5±5 77)年 ,而病情较轻、症状波动和腱反射活跃更多见 ,多巴制剂不良反应更常见。结论　青少年型PD具有独特的临床特征 ,可能是一个独立的疾病实体。AR JP与散发性青少年型PD临床特征不同 ,提示二者可能具有不同的发病机制。     

寒冷干燥地区平时火器伤的早期处理

目的　探讨寒冷干燥地区平时火器伤伤情特点与早期救治方法。方法　对 1991年 1月— 2 0 0 2年 12月间 40例火器伤病人的临床救治进行回顾分析。结果　 2 4例枪伤中 ,2 0例一期缝合伤口 ,均一期愈合 ,另外 4例只清创未一期缝合的伤口 ,3例愈合 ,1例感染 ;4例骨折内固定均愈合良好 ,无骨髓炎发生。 16例炸伤病人局部软组织损伤及污染比枪弹伤重 ,14例一期缝合伤口中 ,10例一期愈合 ,4例感染 ,骨折内固定 2例 ,均愈合良好 ,无骨髓炎发生。结论　寒冷干燥地区火器伤早期伤道清创时限可适当延长 ,在平时火器伤的救治中 ,对软组织条件较好的创面 ,早期清创后可一期闭合伤口和骨折内固定 ,这样可减少感染和伤残 ,促进康复     

成神经细胞瘤骨转移的X线诊断(附13例报告)

目的探讨成神经细胞瘤骨转移的X线表现及分型。方法分析13例成神经细胞瘤骨转移的X线表现，并根据X线表现将其分为溶骨型和成骨型。结果13例患者中，溶骨型9例，成骨型4例，各型病例均有其特征性的X线表现。结论根据患者年龄及特征性的X线表现，对成神经细胞瘤骨转移可作出诊断。     

Anatomic and spiral computed tomographic study of the genial tubercles for genioglossus advancement.

OBJECTIVE: To measure and compare Chinese mandibular genial tubercles measured anatomically and with computed tomography (CT). STUDY DESIGN AND SETTING: Spiral CT scans were taken of 40 adult human skulls; the superior genial spines were measured using anatomic and CT methods. RESULTS: The height and width of the superior genial spines, mandible thickness, and distance from the menton to the inferior and superior margins of the superior genial spines were 5.82 +/- 0.71, 6.98 +/- 1.35, 11.95 +/- 1.59, 11.08 +/- 2.05, and 16.91 +/- 2.30 mm from anatomic measurements and 6.17 +/- 0.71, 7.01 +/- 1.13, 12.19 +/- 1.64, 10.41 +/- 1.55, and 15.73 +/- 2.12 mm using spiral CT, respectively. The anatomic and CT measurements were correlated. CONCLUSION: Spiral CT of the genial tubercles can help locate the osteotomy in genioglossus advancement. SIGNIFICANCE: This study acquired reference data on Chinese genial tubercles demonstrating that CT measurements of the genial tubercles reflect their anatomy, which should allow accurately locate the osteotomy.