高中生生活事件与学校适应的关系:自尊的中介作用

目的 探讨高中生自尊在生活事件与学校适应之间的中介作用,为提高高中生学校适应提供实证依据.方法 采用方便抽样法,于2019年11月抽取山东省济南市2所中学的1192名高一、 高二学生为研究对象.采用高中生学校适应量表(QSAHSS)、高中生自尊量表以及中学生生活事件多维评定问卷进行问卷调查.采用Pearson相关分析高...     

Management and reproductive outcome of complete septate uterus with duplicated cervix and vaginal septum: review of 21 cases

Aim

To evaluate the reproductive outcomes of complete septate uterus with duplicated cervix and vaginal septum.

Methods

Twenty-one patients who have complete septate uterus with duplicated cervix and vaginal septum were retrospectively reviewed in this study. In Group I, 11 patients with a poor reproductive outcome (spontaneous miscarriage or infertility) or dyspareunia underwent hysteroscopic metroplasty and removal of vaginal septum with the preservation of cervical septum. In Group II, 10 patients without a history of spontaneous miscarriage did not undergo hysteroscopic transection of the uterine septum. Of 10, four underwent vaginal septum incision due to dyspareunia, two underwent mere laparoscopic pelvic adhesiolysis because of infertility, and four without symptoms had no intervention. The primary endpoints included the pregnancy rate and outcomes of pregnancies.

Results

In Group I, the pregnancy rate after surgery is 81.8 % (9/11). Of nine women who conceived, six had term delivery, one encountered induced abortion due to the malformation of the fetal heart, and two had ongoing pregnancy. In Group II, among six patients accepting surgery, three had term delivery. The pregnancy rate after operation is 50 % (3/6).

Conclusions

The uterine septum may not necessarily be transected for patients who have complete septate uterus with duplicated cervix and vaginal septum, and meanwhile have no a history of poor reproductive outcome.     

从生物信息与网络药理角度认识姜黄素治疗膝骨关节炎的分子机制

背景:姜黄素是由中药姜黄中提取的一种植物多酚,可用于治疗膝骨关节炎,但具体机制尚不清楚.目的:基于生物信息学和网络药理学初步分析姜黄素治疗膝骨关节炎的分子机制,为膝骨关节炎的治疗提供新的研究方向.方法:通过中药系统药理学数据库及分析平台(TCMSP)数据库、蛋白质-化合物作用网(STITCH)数据库、Drugbank数...     

不同连接方式种植体对周围组织影响的临床比较

目的比较平台转换种植体和传统基台连接种植体对上颌美学区单牙种植周围组织的影响。方法随机选择95例（110枚）上颌美学区单牙种植修复患者,其中Ankylos系统（平台转换）47例（54枚种植体）,Nobel Replace系统（传统基台连接）48例（56枚种植体）。在患者最终修复后36～62个月进行随访,拍摄X线片及临床检查来记录种植体周围骨组织和牙龈组织的状况,比较两组种植体边缘骨吸收量和周围软组织红色美学指数。利用统计学方法分析所得数据。结果不同连接方式种植修复后种植体周围边缘骨吸收量与红色美学指数具有显著差异,平台转换种植体的骨吸收量明显少于传统基台连接组,红色美学指数也高于传统基台连接。结论平台转换种植体在上颌美学区单牙种植修复相较于传统基台连接种植体能更有效的保留周围骨组织且美学效果较佳。     

两种纤维桩短期修复效果的临床观察

目的 观察两种玻璃纤维桩修复系统修复牙齿缺损的短期临床疗效。方法 选择北京宣武中医医院口腔科门诊和北京大学口腔医院特诊科因牙体缺损进行桩核冠修复的符合纳入标准的120例患者,经知情同意后,随机分2组,每组 60例,分别采用 Tenax Fiber White纤维桩与国产 OUYA FIBER纤维桩修复系统修复,修复后 1周与 3个月复诊,检查纤维桩修复的临床效果。结果 Tenax Fiber White纤维桩与OUYA FIBER纤维桩修复1周后,检查纤维桩修复体的总体情况、边缘密合性、边缘着色情况,两组满意率均达到 98%以上;3个月后复查,通过 X线片检查纤维桩的总体情况和基牙情况,以及咀嚼功能恢复情况,两组满意率均达到 96%以上;2组间比较差异无统计学意义（P>0.05）。结论 OUYA FIBER纤维桩与Tenax Fiber White纤维桩在3个月的观察期间的总体疗效相当,值得推广应用,但仍需对其疗效进行长期的临床观察。     

Isolation and characterization of 14 tetranucleotide microsatellite DNA markers in the elongate loach Leptobotia elongata (Cypriniformes: Cobitidae) using 454 sequencing technology

Anthropogenic factors have contributed to a severe decline of Leptobotia elongata. Conservation information of L. elongata will be required. Here, 14 tetranucleotide microsatellite DNA markers were developed from L. elongata through high-throughput (454) sequencing data. Twenty-four individuals of the species were genotyped using these markers. All of the loci displayed a high level of polymorphism with the number of alleles per locus ranged from 7 to 23, polymorphism information content ranged from 0.650 to 0.943. Observed and expected heterozygosities ranged from 0.609 to 1.000 and from 0.699 to 0.967, respectively. These markers provide an excellent toolkit to study population genetic structure and would benefit the conservation of this species.     

基于第三代双源CT动态心肌灌注成像不同负荷后心率增量者的正常心肌血流量范围

目的:探讨基于第3代双源CT动态心肌灌注成像（CT-MPI）定量的正常心肌血流量（MBF）与负荷后心率增量的关系。方法:回顾性分析2016年10月至2019年11月于上海交通大学附属第六人民医院行动态CT-MPI及冠状动脉CTA（CCTA）检查的冠状动脉正常或冠状动脉轻微狭窄（定义为任一心外膜血管直径狭窄<25%）44...     

富血小板血浆治疗肩袖损伤术后的疗效:随机对照试验Meta分析

目的 比较单纯使用关节镜治疗与联合使用富血小板血浆(PRP)的疗效,为肩袖损伤的治疗方法提供循证依据.方法 检索CENTRAL、Medline、PubMed、EMbase、CNKI、万方、维普、CBM数据库和手工检索会议文献等.通过制定纳入标准及排除标准纳入记录相关的随机对照试验的文献.检索时间均从该库建库始至2019...     

10 s团注对比剂方案联合80 kV管电压在颈动脉CT血管成像的应用

目的:探讨80 kV管电压联合个体化对比剂低剂量注射方案行颈动脉CT血管成像的可行性。方法:前瞻性纳入需要行颈部CT血管成像(CTA)检查的136名患者,采用完全随机区段法分成A、B、C、D 4组,A组为100 kV 15 s团注常规组,53例;其他3组为80 kV 10 s团注对照组,根据≤50 kg、50～70 k...