溴敌隆灭动物园害鼠效果观察

用0.5%溴敌隆母液配制的0.005%毒饵,采用7天饱和投饵,取得了100%的灭效;0.025%敌鼠钠盐以同样方法投饵,灭效为93.33%。从而证实,溴敌隆是目前在灭鼠效力、适口性、安全性方面较好的抗凝血灭鼠剂之一。     

七种常见舌苔的细胞化学计量诊断研究

以１１７例常见舌苔上皮细胞内ＬＤＨ、ＭＤＨ、Ｇ－６－ＰＤＨ、ＡＣＰ、ＡＮＡＥ、－ＳＨ、ＲＮＡ七种生物大分子物质的定量检测为基础，运用多元逐步回归方法建立正常薄白、虚寒薄白及白厚、薄黄、黄厚、花剥、光剥种舌苔的计量诊断模型，经临床回代检验，其敏感性、特异性、准确度、可用度分别为９３．２％、８１．４％、８７．２％和７５．７％。     

病理性近视眼的研究进展

通过复习近年来相关文献,对近视眼发生发展机制与形觉剥夺之间的关系进行综合评述。认为近视眼的发生及眼轴延长与形觉剥夺有一定关系,深入研究其相关机制,对近视眼的早期防治具有重要意义。     

以临床技术流程功能定位需求为基础的生理监测仪功能配置

病人生理监测仪是临床医学的主要仪器,由于涉及技术流程的功能定位不同,功能需求也就不同,其功能配置也就有所不同。从生理监测仪相关应用领域的分解技术功能定位出发,讨论装备管理的功能配置问题。     

Genome-wide scan identified QTLs underlying femoral neck cross-sectional geometry that are novel studied risk factors of osteoporosis.

A genome-wide screen was conducted using a large white sample to identify QTLs for FNCS geometry. We found significant linkage of FNCS parameters to 20q12 and Xq25, plus significant epistatic interactions and sex-specific QTLs influencing FNCS geometry variation. INTRODUCTION: Bone geometry, a highly heritable trait, is a critical component of bone strength that significantly determines osteoporotic fracture risk. Specifically, femoral neck cross-sectional (FNCS) geometry is significantly associated with hip fracture risk as well as genetic factors. However, genetic research in this respect is still in its infancy. MATERIALS AND METHODS: To identify the underlying genomic regions influencing FNCS variables, we performed a remarkably large-scale whole genome linkage scan involving 3998 individuals from 434 pedigrees for four FNCS geometry parameters, namely buckling ratio (BR), cross-sectional area (CSA), cortical thickness (CT), and section modulus (Z). The major statistical approach adopted is the variance component method implemented in SOLAR. RESULTS: Significant linkage evidence (threshold LOD = 3.72 after correction for tests of multiple phenotypes) was found in the regions of 20q12 and Xq25 for CT (LOD = 4.28 and 3.90, respectively). We also identified eight suggestive linkage signals (threshold LOD = 2.31 after correction for multiple tests) for the respective geometry traits. The above findings were supported by principal component linkage analysis. Of them, 20q12 was of particular interest because it was linked to multiple FNCS geometry traits and significantly interacted with five other genomic loci to influence CSA variation. The effects of 20q12 on FNCS geometry were present in both male and female subgroups. Subgroup analysis also revealed the presence of sex-specific quantitative trait loci (QTLs) for FNCS traits in the regions such as 2p14, 3q26, 7q21 and 15q21. CONCLUSIONS: Our findings laid a foundation for further replication and fine-mapping studies as well as for positional and functional candidate gene studies, aiming at eventually finding the causal genetic variants and hidden mechanisms concerning FNCS geometry variation and the associated hip fractures.     

三嵌段高分子骨组织工程支架材料的体内生物学性能评价

目的：对三嵌段高分子骨组织工程支架材料-聚（丙交酯-乙交酯）[天冬氨酸-聚乙二醇1的生物相容性进行评价，探讨用于骨组织工程的可行性。 方法：实验于2003-08／12在华中科技大学同济医学院附属协和医院骨科实验室完成。①过敏试验：20只豚鼠随机分为试验组、对照组，每只豚鼠脊柱两侧皮内注射等体积聚（丙交酯-乙交酯）[天冬氨酸-聚乙二醇]浸提液、生理盐水及体积分数为0．05的甲醛溶液，记录激发部位红斑水肿。②急性全身毒性试验：12只小白鼠随机分为试验组和对照组，该两组腹腔分别注射浸提液及生理盐水，4，24，48及72h观察动物的一般状态。③植入试验：聚（丙交酯-乙交酯）[天冬氨酸-聚乙二醇]植入6只新西兰大白兔肌肉内，1，4及8周切取材料周围0．5cm处肌肉组织，苏木精-伊红染色，光镜下观察。 结果：①过敏试验结果：皮内注射浸提液及生理盐水动物皮肤无红斑水肿，注射体积分数为0．05的甲醛溶液出现中度以上红斑水肿。②急性全身毒性试验结果：阴性对照组未见毒性症状，试验组4h后仅1只有轻微的运动减少，24h后恢复正常。③植入试验结果：所有试验动物伤口均一期愈合。 结论：聚（丙交酯-乙交酯）[天冬氨酸-聚乙二醇]具有良好生物相容性，是一种新的骨组织工程支架材料。     

多巴酚丁胺负荷超声心动图及组织多普勒成像技术在诊断冠心病中的临床应用

目的探讨多巴酚丁胺负荷超声心动图(DSE)和组织多普勒成像技术(TDI)在冠心病(CHD)诊断中的应用价值,以寻求一种敏感的、无创的CHD诊断方法。方法选择胸闷或胸痛怀疑CHD患者40例,应用TDI测量静息状态(Rest)下前壁中段收缩峰值速度(Vs),以及多巴酚丁胺峰值负荷状态(Peak)下前壁中段Vs,同时测量静息心率和负荷心率;所有入选对象均进行冠脉造影,并根据左前降支狭窄程度是否大于等于50%分为左前降支狭窄组(LST组)与左前降支非狭窄组(non-LST组)。分别比较Rest和Peak前壁中段LST组与non-LST组平均Vs差别等。结果Rest前壁中段LST组与non-LST组Vs差别无显著性意义;但Peak前壁中段LST组与non-LST组差别有显著性意义。结论DSE结合TDI是诊断冠心病有价值的定量分析方法。DSE在诊断CHD时的敏感性、准确性明显优于静息状态超声心动图。     

Effects of phycocyanin on apoptosis and expression of superoxide dismutase in cerebral ischemia reperfusion injury

IN T R O D U C T IO NSuperoxide dism utase (SO D )is an im portantendogenous free radica scavenger, itelim inates superoxide anion free radicals through dis proportionation, and itprotects the nerve cells in the process ofcere bralischem ia reperfusion in…     

Dynamic observation on thyroid function in severe head injury.

The dynamic changes of thyroid hormone levels in patients with severe head injury were observed. The results showed that the serum thyroid hormone levels changed rapidly within several hours after the injury and the mean levels of serum total T3 and T4 (TT3, TT4) decreased while high reverse triiodothyronine (rT3) increased significantly. Serum TT3, TT4 and rT3 levels returned to normal gradually in 2 to 3 weeks after the injury in the surviving group, whereas serum total T4 gradually declined and rT3 steadily increased in the fatal group. The mean levels of serum TSH remained unchanged in both groups. Therefore, the use of the levels of serum thyroid hormones as adjuvant indices can be helpful in making pertinent judgements of the severity and prognosis of severe head injuries.

     

INTRAVENOUS LEIOMYOMATOSIS OF THE UTERUS WITH EARLY PREGNANCY

Intravenous leiomyomatosis is a rare uterineneoplasm, histologically characterized by nodularmasses of benign smooth muscle growing withinthe uterine and pelvic veins. The entity has ty-pical gross and microscopic features. A case of intravenous leiomyomatosisassociated with uterine leiomyoma, adenomyosisand early pregnancy was reported. The condi-tion was recognized during surgery for uterinefibroids. This is, to our knowledge, the thirdcase of intravenOUs leiomyomatosis associatedwith pregnancy so far reported.