黄连素对精神分裂症患者血脂水平影响的Meta分析

目的系统评价黄连素对精神分裂症患者血脂水平的影响,为精神分裂症患者血脂干预方案的选择提供参考。方法系统检索英文数据库(PubMed、PsycINFO、Embase、Cochrane Library)和中文数据库(中国期刊全..

The application of computer simulation of spinal osteotomy in making surgical plan for correction of kyphosis in ankylosing spondylitis

目的:探讨计算机辅助设计在强直性脊柱炎后凸畸形矫形术手术方案制定中的应用价值。方法:将5例强直性脊柱炎后凸畸形患者在手术前后进行胸腰椎CT扫描,获得的数据导入Mimics10.01软件进行三维重建。手术前在重建模型上模拟经椎弓根椎体截骨术进行虚拟截骨、预测矫形效果,并测算截骨椎体所需截骨角度及相应在椎板及椎体后缘的截骨宽度。手术后在预测模型及术后重建模型上分别测量全脊柱后凸角,颈7椎体中心点与骶骨后上角的水平距离,截骨节段相邻上下椎体棘突间及双侧横突间距离等指标,并进行比较。结果:5例手术前后均顺利完成三维建模。术前模拟截骨测算出截骨椎体所需截骨角度、椎板截骨宽度和椎体后缘截骨宽度的值分别为(26.34±3.16)°(23.30～30.11°)、(27.71±1.22)mm(26.53～29.15mm)和(14.45±1.62)mm(12.17～16.62mm),在虚拟截骨模型上及术后重建模型上测得的比较指标相近。结论:应用计算机对强直性脊柱炎后凸畸形截骨矫正手术进行仿真模拟设计的方法具有可行性,能比较直观、精确反映矫形效果,可为制定手术方案提供较科学的依据。Objective: To discuss the application of computer simulation of spinal osteotomy in making surgical plans for patients with kyphosis deformity due to ankylosing spondylitis. Methods: 4 patients underwent CT scan before and after the operation and the collected data were put into the Mimics 10.01 to reconstruct 3D images. Virtual vertebrectomies were carried out on the models to guide actual operations. The corrected angle, the width of the lamina, the width of resected lumbar posterior marginal bone was predicted. In the model of virtual vertebrectomies and the postoperative reconstructed, the total spinal kyphosis angle, the distance between the cervical line on the center of C7 and the postero-superior part of S1, the distance of the spinous process and the distance of both sides of transverse process were measured and compared. Results: The models were successfully reconstructed and virtual vertebrectomies were well completed in every case. The mean predictive value of the corrected angle, the width of the lamina, the width of resected lumbar posterior marginal bone were (26.34 ±3.16)° (23.30~30.11° ), (27.71 ±1.22) mm (26.53~29.15 mm), and (14.45 ±1.62) mm (12.17~16.62 mm) respectively. The mean predictive value was close to the mean real values. Conclusions: Computer simulation of vertebrectomy can directly and accurately reflect the correction effects before surgery, which is convenient for defining the best surgical plan as well as improving the safety and accuracy of the operation

极端干旱区胡杨根围丛枝菌根真菌的分离与鉴定/Arbuscular mycorrhizal in roots of Populus euphratic in the lower reaches of Tarim River in extreme arid area[J]

以极端干旱区塔里木河下游处于干旱胁迫下的天然胡杨为研究对象,采用传统形态鉴定法和分子生物技术,研究了胡杨根围土壤中丛枝菌根真菌.结果表明:处于干旱胁迫下的胡杨根围土壤中丛枝菌根真菌孢子密度较低,且孢子种类单一,经形态鉴定和分子生物学鉴定,孢子为球囊霉属的摩西球囊霉Glomus mosseae (T.H.Nicolson & Gerd.),孢子在土壤中单生、根内生或孢子果内形成；圆形,近圆形,直径150～220μm,浅黄色至黄褐色；孢壁3层,L1和L2无色透明,L3浅黄至黄褐色.连孢菌丝单根,连点漏斗状.胡杨根系内存在丛枝菌根真菌的泡囊结构,分子检测表明摩西球囊霉Glomus mosseae与胡杨根系形成共生关系,但是胡杨根系的菌根侵染率及根系的菌根侵染强度均不高

Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024

We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^