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Supplementary Table 1. Patients' Characteristics and KLF4 Expression; Supplementary Table 2. Patients' Characteristics and DNMT1 Expression; Table 3. Upregulated microRNAs after DIM Treatment; Table 4. Down-regulated microRNAs after DIM Treatment.

Purpose: The dismal prognosis of pancreatic cancer has been linked to poor tumor differentiation. However, molecular basis of pancreatic cancer differentiation and potential therapeutic value of the underlying molecules remain unknown. We investigated the mechanistic underexpression of Krüppel-like factor 4 (KLF4) in pancreatic cancer and defined a novel epigenetic pathway of its activation for pancreatic cancer differentiation and treatment.Experimental Design: Expressions of KLF4 and DNMT1 in pancreatic cancer tissues were determined by IHC and the genetic and epigenetic alterations of KLF4 in and KLF4′s impact on differentiation of pancreatic cancer were examined using molecular biology techniques. The function of dietary 3,3′-diindolylmethane (DIM) on miR-152/DNMT1/KLF4 signaling in pancreatic cancer was evaluated using both cell culture and animal models.Results: Overexpression of DNMT1 and promoter hypermethylation contributed to decreased KLF4 expression in and associated with poor differentiation of pancreatic cancer. Manipulation of KLF4 expression significantly affected differentiation marker expressions in pancreatic cancer cells. DIM treatment significantly induced miR-152 expression, which blocked DNMT1 protein expression and its binding to KLF4 promoter region, and consequently reduced promoter DNA methylation and activated KLF4 expression in pancreatic cancer cells. In addition, DIM treatment caused significant inhibition of cell growth in vitro and tumorigenesis in animal models of pancreatic cancer.Conclusions: This is the first demonstration that dysregulated KLF4 expression associates with poor differentiation of pancreatic cancer. Epigenetic activation of miR-152/DNMT1/KLF4 signaling pathway by dietary DIM causes differentiation and significant growth inhibition of pancreatic cancer cells, highlighting its translational implications for pancreatic and other cancers. Clin Cancer Res; 23(18); 5585–97. ©2017 AACR.

Supplementary Methods

Supplementary Figure 1. Genetic and epigenetical alterations of KLF4 in pancreatic cancer; Supplementary Figure 2. A demonstration of LCM/ DNA methylation specific PCR analysis of KLF4 promoter methylation; Supplementary Figure 3. Comparison of DNMT1 and KLF4 expressions in pancreatic tissues determined by IHC analysis; Supplementary Figure 4. The effect of DIM treatment on cell cycle progression; Supplementary Figure 5. Spheroid colony formation and tumorigenesis; Supplementary Figure 6. Tumorigenesis assay using orthotopic pancreatic cancer mouse model; Supplementary Figure 7. The effect of DIM treatment on gene expression in pancreatic cancer cells; Supplementary Figure 8. The effects of DIM and miR-152 on gene expression.

Frequent freezing injury greatly influences winter wheat production; thus, effective prevention and a command of agricultural production are vital. The freezing injury monitoring method integrated with ‘3S’ (geographic information systems (GIS), global positioning system (GPS) and remote sensing (RS)) technology has an unparalleled advantage. Using HuanJing (HJ)-1A/1B satellite images of a winter wheat field in Shanxi Province, China plus a field survey, crop types and winter wheat planting area were identified through repeated visual interpretations of image information and spatial analyses conducted in GIS. Six vegetation indices were extracted from processed HJ-1A/1B satellite images to determine whether the winter wheat suffered from freezing injury and its degree of severity and recovery, using change vector analysis (CVA), the freeze injury representative vegetation index and the combination of the two methods, respectively. Accuracy of the freezing damage classification results was verified by determining the impact of freezing damage on yield and quantitative analysis. The CVA and the change of normalized difference vegetation index (ΔNDVI) monitoring results were different so a comprehensive analysis of the combination of CVA and ΔNDVI was performed. The area with serious freezing injury covered 0.9% of the total study area, followed by the area of no freezing injury (3.5%), moderate freezing injury (10.2%) and light freezing injury (85.4%). Of the moderate and serious freezing injury areas, 0.2% did not recover; 1.2% of the no freezing injury and light freezing injury areas showed optimal recovery, 15.6% of the light freezing injury and moderate freezing injury areas showed poor recovery, and the remaining areas exhibited general recovery.

对于合并多种晕厥危险因素、出现过晕厥事件，且植入植入式心脏转复除颤器（ICD）二级预防的患者，再发晕厥时的诊疗和鉴别诊断颇具挑战性。本文报道因既往反复室性心动过速合并长QT综合征植入ICD的患者再发晕厥，最终溯因为肺血栓栓塞症的1例病例，并复习相关文献，以探讨合并多种晕厥危险因素时的优化晕厥诊疗模式。.

梭形细胞血管瘤（spindle cell hemangioma）是1986年首次提出的一种罕见病变，好发于青年四肢远端皮下软组织。镜下观察可见海绵状血管区、实性梭形细胞区、裂隙状血管区及乳头结构，极易误诊为其他血管源性肿瘤。本文报道1例发生在67岁女性患者胸骨的梭形细胞血管瘤，随访9个月余，病情稳定，无复发征象。.

Cell fate determination is a necessary and tightly regulated process for producing different cell types and structures during development. Cranial neural crest cells (CNCCs) are unique to vertebrate embryos and emerge from the neural plate borders into multiple cell lineages that differentiate into bone, cartilage, neurons and glial cells. We have previously reported that Irf6 genetically interacts with Twist1 during CNCC-derived tissue formation. Here, we have investigated the mechanistic role of Twist1 and Irf6 at early stages of craniofacial development. Our data indicate that TWIST1 is expressed in endocytic vesicles at the apical surface and interacts with β/δ-catenins during neural tube closure, and Irf6 is involved in defining neural fold borders by restricting AP2α expression. Twist1 suppresses Irf6 and other epithelial genes in CNCCs during the epithelial-to-mesenchymal transition (EMT) process and cell migration. Conversely, a loss of Twist1 leads to a sustained expression of epithelial and cell adhesion markers in migratory CNCCs. Disruption of TWIST1 phosphorylation in vivo leads to epidermal blebbing, edema, neural tube defects and CNCC-derived structural abnormalities. Altogether, this study describes a previously uncharacterized function of mammalian Twist1 and Irf6 in the neural tube and CNCCs, and provides new target genes for Twist1 that are involved in cytoskeletal remodeling.

Radiation has been widely used for rice germplasm innovation. The molecular mechanisms by which radiation induces mutations at the genome level require further investigation. To determine the pattern of DNA polymorphisms induced by radiation in the M1 population, we performed whole-genome sequencing of the rice cultivar Gaogengnuo, which was subjected to two 60Co γ-radiation doses, generating the 300 Gy group and the 400 Gy group (11.2 Gy min–1). A total of 356,314 and 588.414 single nucleotide polymorphisms (SNPs), 73,495 and 95,807 insertion/deletion polymorphisms (InDels), 9075 and 8852 structural variations and 5100 and 4252 copy number variations were identified in the 300 Gy group and 400 Gy group, respectively, based on the Nipponbare genome. Through an integrative analysis of resequencing data, we identified 609,209 SNPs and 67,885 InDels that differed between the 300 Gy and Gaogengnuo groups and 632,745 SNPs and 69,899 InDels that differed between the 400 Gy and Gaogengnuo groups. We also detected 2682 homozygous SNPs and 2988 homozygous InDels that were present in the Gaogengnuo, 300 Gy and 400 Gy groups. Gene Ontology clustering showed that the mutated genes in the 300 Gy and 400 Gy groups were classified into two main categories, molecular function and biological process, suggesting that genes associated with molecular functions and biological processes were susceptible to γ-radiation.

吸烟相关性肺间质纤维化是吸烟引起的间质性肺疾病，相关病例报道较少。现报道1例发生于62岁男性的吸烟相关性肺间质纤维化。CT显示胸膜下呈过度充气改变，可见薄壁囊肿。病灶镜下可见肺泡间隔明显增宽，增宽的肺泡间隔由致密透明样变的胶原组成，其内相对无细胞成分。病变主要分布于胸膜下肺实质内，深部肺实质中病变具有小叶中心性分布的特点。.

Background In multidisciplinary education, different perspectives from more than one discipline are used to illustrate a certain topic. The aim of this study was to evaluate the effectiveness of an online, multidisciplinary radiology curriculum to teach radiology to medical students in Egypt. A multidisciplinary team of radiologists, surgeons, and internists taught a series of 5 case-based radiology sessions on a web conference platform. Topics included common clinical case scenarios for various body systems. Undergraduate medical students across Egypt were enrolled in the course. A pre-test–post-test design was used to evaluate the efficacy of each session. Upon course completion, students filled out a subjective survey to assess the radiology education series. Results On average, 1000 students attended each session. For each session, an average of 734 students completed both the pre-test and post-test. There was a statistically significant increase in post-test scores compared to pre-test scores across all 5 sessions (p Conclusions An online radiology curriculum with a multidisciplinary approach can be implemented successfully to reach a large group of medical students and meet their educational objectives.

Background/aims Kidney ischemia and reperfusion injury could cause microvascular barrier dysfunction, lung inflammatory cascades activation, and programmed cell death of pulmonary endothelium, leading to acute lung injury. Our study aimed at determining whether erythropoietin (EPO) can ameliorate lung dysfunction following renal ischemia and reperfusion (IR) injury and explored the underlying mechanisms. Methods In vivo, C57BL/6 mice received EPO (6000 U/kg) before right renal vascular pedicles clamping for 30 minutes, followed by 24 hours of reperfusion. The lung histopathologic changes and inflammatory cytokines expression were assessed. In vitro, cultured human umbilical vein endothelial cells were treated with EPO, and apoptosis rate, proliferation capacity, and phosphorylation status of the Janus kinase-signal transducer and activator of transcription 3 (Jak-STAT3) pathway were measured respectively in the presence or absence of lipopolysaccharide stimulation. Results In vivo, EPO remarkably attenuated pulmonary interstitial and alveolar epithelial edema caused by renal IR injury. In vitro, the proliferation capacity of human umbilical vein endothelial cells was significantly increased under EPO stimulation, which correlated with changes in Jak-STAT3 signaling. Conclusion Our data indicated that EPO is able to ameliorate acute lung tissue damage induced by renal IR, and at least in part, via the Jak-STAT3 pathway.

Cell fate determination is a necessary and tightly regulated process for producing different cell types and structures during development. Cranial neural crest cells (CNCCs) are unique to vertebrate embryos and emerge from the neural fold borders into multiple cell lineages that differentiate into bone, cartilage, neurons, and glial cells. We previously reported thatIrf6genetically interacts withTwist1during CNCC-derived tissue formation. Here, we investigated the mechanistic role ofTwist1andIrf6at early stages of craniofacial development. Our data indicates that TWIST1 interacts with α/β/γ-CATENINS during neural tube closure, andIrf6is involved in the structural integrity of the neural tube.Twist1suppressesIrf6and other epithelial genes in CNCCs during epithelial-to-mesenchymal transition (EMT) process and cell migration. Conversely, a loss ofTwist1leads to a sustained expression of epithelial and cell adhesion markers in migratory CNCCs. Disruption of TWIST1 phosphorylationin vivoleads to epidermal blebbing, edema, neural tube defects, and CNCC-derived structural abnormalities. Altogether, this study describes an uncharacterized function ofTwist1andIrf6in the neural tube and CNCCs and provides new target genes ofTwist1involved in cytoskeletal remodeling. Furthermore, the association between DNA variations within TWIST1 putative enhancers and human facial morphology is also investigated.SUMMARY STATEMENTThis study uncovers a new function ofTwist1in neural tube development and epithelial-to-mesenchymal transition in cranial neural crest cells. Data further shows thatTwist1-interactingIrf6is involved in regulating neural tube integrity.

The stability of copolymer tethers is investigated theoretically. Self-assembly of diblockor triblock copolymers can lead to tubular polymersomes which are known experimentallyto undergo shape instability under thermal, chemical and tension stresses. It leads to aperiodic modulation of the radius which evolves to assembly-line pearls connected by tinytethers. We study the contributions of shear surface viscosity and spontaneous curvatureand their interplay to understand the pearling instability. The performed linear analysisof stability of this cylinder-to-pearls transition shows that such systems are unstable if themembrane tension is larger than a finite critical value contrary to the Rayleigh-Plateau in-stability, an already known or if the spontaneous curvature is in a specific range whichdepends on membrane tension. For the case of spontaneous curvature-induced shape insta-bility, two dynamical modes are identified. The first one is analog to the tension-inducedinstability with a marginal mode. Its wavenumber associated to the most unstable modedecreases continuously to zero as membrane viscosity increases. The unexpected secondone has a finite range of unstable wavenumbers. The wavenumber of the most unstablemode tends to a constant as membrane viscosity increases. In this mode, its growth ratebecomes independent of the bulk viscosity in the limit of high membrane viscosity andbehaves as a pure viscous surface., Comment: 28 pages, 6 figures

To investigate the heterogeneity of decidual endothelial cells and their changes during delivery.Single-cell RNA sequencing was used to characterize the transcriptomes of decidual endothelial cells before and after the onset of labor.Decidual endothelial cells (9748 cells) were divided into five subgroups with different functions according to differences in the transcriptome. The functions of cluster 5 were enriched in vascular development and response to growth factors. After the onset of labor, the activities of each cluster were different, including the interleukin 17 pathway and regulation of ERK1 and ERK2 cascade. The downregulated genes were related to scavenger receptor (cluster 5), which may reflect the process of endothelial activation. In terms of genetic changes, cluster 5 may be more actively involved in labor than the other clusters.Peripartum decidual endothelial cells are heterogeneous and participate in labor to varying degrees. One of the five subtypes of endothelial cells may be more actively involved in labor onset. Our findings may enable the assessment of decidual endothelial cells and labor onset.

Purpose The variables causing symptomatic accessory navicular are largely unknown and may inform management of symptomatic patients. The purpose of this study was to examine patient specific factors associated with the development of accessory navicular symptoms. Methods A total of 71 patients with clinical and radiographic evidence of accessory navicular syndrome were evaluated. Patient gender, race, date of birth, date of earliest foot complaint and laterality were recorded. Treatment was defined as conservative versus surgical. Skeletal maturity was assessed based on calcaneal ossification, accessory navicular subtype and the presence of pes planus based on talo-first metatarsal angle were assessed. Results Female patients comprised 72% of the subjects and trended towards symptoms at younger ages than male patients (p = 0.06), while no significant difference in presentation age was appreciated between male and female patients. Skeletal maturity was significantly associated with earlier complaints and age at presentation but was not associated with increased need for surgical management. Patients with pes planus were significantly more likely to undergo operative management. Accessory navicular subtype was significantly correlated with skeletal maturity. Conclusion Female patients were more likely to report symptoms and present with symptomatic accessory navicular. The stage of skeletal maturity is not a predictor of future surgical management but patients with a higher first-metatarsal angle were more likely to require surgery. The correlation between accessory navicular subtype and skeletal maturity suggests that Type II ossicles are likely to develop into Type III over time. Radiographic evaluation of the accessory navicular may lend prognostic data on the necessity of future surgical intervention. Level of Evidence IV, Case Series

目前已有多个研究证实新型口服降糖药物钠-葡萄糖共转运体2（SGLT2）抑制剂可在安全降糖的基础上有效降低糖尿病患者因心力衰竭（心衰）住院以及心血管、全因死亡风险。最近发表的DAPA-HF研究结果显示，无论患者是否存在糖尿病，达格列净均可显著降低左心室射血分数40%的慢性心衰患者心衰恶化及心血管死亡风险的复合终点。该研究结果使SGLT2抑制剂从降糖药物"跨界"到心衰治疗领域。该文就有关SGLT2抑制剂主要的临床研究的设计及结论进行了论述与比较，提出了SGLT2抑制剂可通过改善肾脏神经内分泌、降低肾素-血管紧张素-醛固酮系统活性来降低心血管终点事件的假说，并对SGLT2抑制剂改善心血管病临床结局的其他可能机制进行了阐述。.

Introduction: Genome browsers are useful tools for research in human genetics, able to display and integrate biological information such as long and short read sequencing data, variant calls, and annotations. While traditional linear genome browsers have demonstrated broad utility for many applications, there is an increasing need for visualizing complex structural variants (SVs) beyond the linear view. To meet these challenges, we created JBrowse 2: an extensible open-source platform for visualizing and integrating genomic data. Results: JBrowse 2 is a flexible platform that provides the foundation for the development of applications and web dashboards that combine novel views and representations extending beyond linear displays in genomic reference coordinates. For example, a flagship JBrowse 2 application is the SV Inspector, which lets users open a list of structural variants in a data table and see the results in a whole-genome circular view. Clicking on a given variant in the table or circular view opens up a linear view that displays the read evidence supporting the SV, even across complex breakpoints like translocations. Dotplot and synteny views are built-in, enabling “long read vs reference” dotplot visualizations, or alignments of de-novo assembled contigs to the genome. These views are integrated with each other, so that (for example) a long read is just a few clicks away from the corresponding dotplot. In addition to including these new views, the JBrowse 2 platform is designed from the ground up to enable third-party plugins to add new views, data adapters, and track types, which has facilitated the creation of new plugins that address some very specific use cases. These include our MSA view plugin for viewing multiple sequence alignments, data adapters that download data from UCSC and CIVIC APIs, and the Quantseq plugin for viewing quantitative motif scores as a genome browser track. JBrowse 2 is available as both a web app or a local desktop app. We also offer re-usable components on NPM, and users of R can programmatically create an instance of JBrowse 2 with the JBrowseR package on CRAN. JBrowse 2 can also generate high quality SVG snapshots from inside the app, and we also created a CLI tool called jb2export to perform automated or bulk exports of JBrowse 2 visualizations. We anticipate that JBrowse 2 will better serve genome scientists with its structural variant visualization capabilities, and will provide the flexibility to adapt to new visualization and analysis challenges as they emerge in the coming years. Citation Format: Scott Cain, Robin Haw, Caroline Bridge, Junjun Zhang, Robert Buels, Colin Diesh, Garrett Stevens, Teresa Martinez, Peter K. Xie, Elliot Hershberg, Shihab Dider, Lincoln Stein, Ian Holmes. JBrowse 2: An extensible open-source platform for modern genome analysis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 6400.

The effects of heat treatment process on microstructure and properties of a nickel base superalloy are investigated. The size of γ´ phase decreases and the stress rupture life of alloy at 1100 °C/60 MPa drops with the rise of cooling rate. The hardness at room temperature also increases. The size of cuboidal γ´ precipitate and the volume of spherical γ´ precipitate increase with the rise of aging temperature. With higher aging temperature, the alloy exhibits bimodal γ´ phase. A reasonable combination of the size and volume fraction of cuboidal and spherical γ´ phase can obtain better stress rupture property at 1100 °C/60 MPa.

A systematic experimental investigation was conducted to study the effects of microstructure and residual stress on the tribological behavior of induction hardened GCr15 steel. Dry sliding wear tests of the hardened steel had been performed using a reciprocating ball-on-flat apparatus under different normal loads of 20, 50, and 100 N. The results indicate that the quenched layer microstructure is composed of martensite and retained austenite. The analysis of worn surface and wear debris of quenched layer showed that the wear mechanism was mainly abrasive wear at low load and delamination wear at high load. Typically, the compressive stress in the hardening layer has a significant positive influence on the wear resistance whereas the tensile stress has a negative effect.

Semi-empirical solutions for fractal-based hydraulic properties of unsaturated three-dimensional fracture networks are presented, in which three assumptions are made: (a) the permeability is scale dependent, (b) each fracture cuts through the model and (c) the difference between fractal dimensions for fracture aperture distribution and tortuous length of a fracture is

Increasing evidence demonstrated that long non-coding RNA (lncRNA) played a vital role in human tumorigenesis and progression, including colorectal cancer (CRC). However, the underlying mechanisms are still largely unknown. The aim of this study was to investigate the function of lncRNA LINC00324 on the development of CRC and explore the possible mechanisms.The expression level of LINC00324 and miR-214-3p was measured by quantitative real time polymerase chain reaction (qRT-PCR) in CRC cells. The effects on cell proliferation, migration and invasion were assessed by MTT and transwell assays, respectively. In addition, the protein levels of cyclin D1, p21, p27 and three MMPs were detected by Western blot analysis. The target of LINC00324 was predicted by online software and confirmed by luciferase reporter assay.We first detected the expression of LIN00324 was increased while miR-214-3p was decreased in CRC cells. Knockdown of LIN00324 suppressed proliferation, migration and invasion in SW620 and HCT15 cells. Moreover, overexpression of miR-214-3p also inhibited CRC cell proliferation, migration and invasion. Then, we identified miR-214-3p as directly target of LINC00324 and the expression of miR-214-3p was downregulated by LINC00324. In addition, inhibiting miR-214-3p reversed the effects of LINC00324 on CRC cell proliferation, migration and invasion.Our results proved that LINC00324 regulated CRC cell proliferation, migration and invasion by sponging miR-214-3p, suggesting that it might be a potential therapeutic target for CRC therapy.

Objective To establish a method for determination of escitalopram in biological samples by ultrasound-assisted ionic liquid-dispersive liquid-liquid microextraction combined with gas chromatography-tandem mass spectrometry （GC-MS/MS） and provide evidences for forensic determination of cases related to escitalopram. Methods The 1-hexyl-3-methylimidazolium hexafluorophosphate （[C分散液液微萃取-气相色谱串联质谱联用法测定生物样品中艾司西酞普兰.目的 建立超声辅助离子液体-分散液液微萃取-气相色谱串联质谱（gas chromatography-tandem mass spectrometry，GC-MS/MS）联用法测定生物样品中艾司西酞普兰的方法，为艾司西酞普兰相关案件的法医学鉴定提供依据。 方法 以1-己基-3-甲基咪唑六氟磷酸盐（[C法医毒理学；气相色谱-串联质谱法；艾司西酞普兰；超声辅助离子液体-分散液液微萃取；生物检材.

The aim of this study was to investigate the effects of miR-940 and Toll-like receptor 4/Nuclear Factor κB (TLR4/NF-κB) pathways on inflammatory responses and spinal cord injury (SCI).This study first established a model of spinal cord injury in mice. The grip force measurement was used to detect the recovery of the forelimb, left forelimb and right forelimb of SCI mice. The quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was used to detect the expression of miR-940 and macrophage receptor TLR4 in SCI mice. In addition, the protein levels of TLR4 and inducible nitric oxide synthase (iNOS) in SCI mice were detected by Western blot. MiR-940 mimic was injected into the injured area of SCI mice to explore the effect of miR-940 overexpression on TLR4 and myeloperoxidase (MPO) expression as well as the protein levels of TLR4, P65 and iNOS. Furthermore, the grip strength of SCI mice with double forelimb, left forelimb and right forelimb was detected by the grip force test after miR-940 overexpression.Compared with the sham-operated mice, the grip strength of the forelimb, left forelimb, and right forelimb of the SCI group showed significant obstacles. Meanwhile, the expression of miR-940 was remarkably decreased in SCI mice along with significant elevation of the inflammatory response-related factors including TRL4 and iNOS. Then we injected SCI mice with miR-940 mimics into the spinal cord injury area and found that miR-940 overexpression decreased the expression levels of TLR4 and MPO. At the same time, the overexpression of miR-940 markedly decreased the protein levels of TLR4, P65, and iNOS in SCI mice. In addition, miR-940 overexpression improved the grip strength of the left and right forepaws and the simultaneous grip strength of the two claws of the SCI mice than those of the simple injury group.High expression of miR-940 can promote the recovery of spinal cord injury by downregulating the TLR4/NF-κB signaling pathway and inhibiting inflammation.

We present a detailed study of the photoinduced magnetization precession and magnetic relaxation in epitaxial Pd/Fe films on MgO(0 0 1) substrates via all-optical pump-probe techniques. We explicitly formulate the correlation between the Gilbert damping and the effective damping in the optical approach. Furthermore, a non-local Gilbert damping induced by spin pumping is demonstrated self-consistently by the Gilbert damping dependence on Pd thickness and the [Formula: see text] relationship of damping with Fe thickness [Formula: see text]. The non-local Gilbert damping enables the determination of spin diffusion length [Formula: see text] in Pd and interfacial spin mixing conductance [Formula: see text]. Our work paves the way toward the optical determination of spin transport parameters.

Exposure to volatile anesthetics in neonatal rats could induce neurotoxicity, learning deficits and abnormal social behaviors. The aim of this study is to investigate the potential neurotoxicity induced by sevoflurane.Postnatal day 7 (P7) Sprague-Dawley (SD) rats were continuously exposed to 2% sevoflurane plus 40% oxygen/air for 2 h. We used Morris water maze (MWM) to examine subsequent neurobehavioral performance. Transmission electron microscopy (TEM) was used to observe the histopathological changes in the hippocampus.Neonatal exposure to 2% sevoflurane for 2 hours impaired short-term spatial working memory but not reference memory at P25. It induced synaptic ultrastructure impairments in the CA3 region of hippocampal, including fewer numbers of synapses, thinner thickness of postsynaptic dense, broader synaptic cleft width and smaller synaptic curvature. Our results also showed that all synaptic ultrastructure impairments and neurocognitive deficits had almost completely recovered at P53.We showed that a single sevoflurane exposure to neonatal rats led to temporary spatial working memory deficits. It might be associated with synaptic ultrastructure impairments in the CA3 region of the hippocampus, including fewer numbers of synapses, thinner thickness of PSD and broader synaptic cleft width. Fortunately, all the neurotoxicity and neurocognitive deficits were reversible.

Water conservancy project is an important public infrastructure project related to the national economy and people’s livelihood. The quality and safety issues of major water conservancy projects are the core work for the government to strengthen the management of water conservancy project construction. Based on the inspection and re-inspection work of major water conservancy projects in Zhejiang Province between 2015 and 2019, this paper analyzes the main problems existing in major water conservancy projects, points out the engineering quality and safety problems account for a large proportion, analyzes the changing trend of engineering quality and safety problems, points out the main causes of quality and safety problems as well as the causes of non-correction, and puts forward the corresponding solutions. On this basis, the main responsible parties and problems are analyzed, which provides reference and suggestions for the relevant participating units to strengthen the quality and safety management of major water conservancy projects in the future.

A large number of aqueducts were built in China in the 1950s and 1980s, and there are still quite a few aqueducts still undertaking water delivery tasks. Evaluation of existing aqueducts is an important measure to ensure safe water delivery. In order to cope with problems such as the long construction period of the aqueduct and the lack of original design materials, this paper comprehensively uses digital technologies such as drone aerial photography, BIM, and three-dimensional laser scanning. Take Dabeishan Aqueduct for example, carrying out safety test and evaluation. The adopted methods has enriched the methods of safety evaluation of aqueducts and improved the quality of safety evaluation.

Degenerative joint disease of the lumbar spine is a pervasive problem in healthcare; however, its aetiology and risk factors remain poorly defined. There have been recent attempts to correlate the anatomic parameters of facet angle and pelvic incidence with spine osteoarthritis, although data remains limited. The purpose of this experiment was to determine how age, gender, race, facet angle, tropism, and pelvic incidence correlate to facet joint osteoarthritis in the lumbar spine. A total of 576 cadaveric lumbar spines were obtained. Using validated techniques, facet angle, tropism, and pelvic incidence were measured. Osteoarthritis of the lumbar spines was graded from 0-4 at each level. Correlations between osteoarthritis and age, gender, facet angle, tropism, and pelvic incidence were evaluated with regression analysis. Facet angle became more coronally oriented, and facet tropism increased from L1-L2 to L5-S1. Arthritis was highest at the L4-L5 joint (2.2 ± 1.1), compared to the L5-S1 (2.1 ± 1.1), L3-L4 (1.9 ± 1.1), L2-L3 (1.5 ± 1.0) and L1-L2 (1.0 ± 1.0) joints (p