Overexpression of a sugarcane ScCaM gene negatively regulates salinity and drought stress responses in transgenic Arabidopsis thaliana

Calmodulin(CaM)proteins play a key role in signal transduction under various stresses.In the present study,the effects of a sugarcane ScCaM gene(NCBI accession number:GQ246454)on drought and salt stress tolerance in transgenic Arabidopsis thaliana and Escherichia coli cells were evaluated.The results demonstrated a significant negative role of ScCaM in the drought and salt stress tolerance of transgenic lines of A.thaliana,as indicated by the phenotypes.In addition,the expression of AtP5CS and AtRD29A,two genes tightly related to stress resistance,was significantly lower in the overexpression lines than in the wild type.The growth of E.coli BL21 cells expressing ScCaM showed weaker tolerance under mannitol and NaCl stress.Taken together,this study revealed that the ScCaM gene plays a negative regulatory role in both mannitol and NaCl stresses,and it possibly exerts protective mechanisms common in both prokaryotes and eukaryotes under stress conditions.

The role of flavonoids in mitigating food originated heterocyclic aromatic amines that concerns human wellness

Meat products are an important part in our daily diet,providing valuable nutrients for the human body.However,heating processes cause the meat to become more appetizing with changes in texture,appearance,flavor,and chemical properties by the altering of protein structure and other ingredients.As one kind of cooking-induced contaminants,heterocyclic aromatic amines(HAAs)are widely present in protein aceous food products with strong carcinogenic and mutagenic properties.In order to promote the safety of traditional meat products,this review focused on the formation,metabolism,biological monitoring and inhibitory mechanism of HAA.An overview of the formation pathways,hazards,and control methods of HAAs during food processing in recent years was studied,aiming to provide some valuable information for exploring effective methods to inhibit the production of associated hazards during food processing.Systematic selection of different types of flavonoids to explore their effects on the formation of HAAs in an actual barbecue system can provide theoretical reference for effectively controlling the formation of HAAs and reducing their harm to human health.

Lightweight Multi-scale Convolutional Neural Network for Rice Leaf Disease Recognition

In the field of agricultural information,the identification and prediction of rice leaf disease have always been the focus of research,and deep learning(DL)technology is currently a hot research topic in the field of pattern recognition.The research and development of high-efficiency,highquality and low-cost automatic identification methods for rice diseases that can replace humans is an important means of dealing with the current situation from a technical perspective.This paper mainly focuses on the problem of huge parameters of the Convolutional Neural Network(CNN)model and proposes a recognitionmodel that combines amulti-scale convolution module with a neural network model based on Visual Geometry Group(VGG).The accuracy and loss of the training set and the test set are used to evaluate the performance of the model.The test accuracy of this model is 97.1%that has increased 5.87%over VGG.Furthermore,the memory requirement is 26.1M,only 1.6%of the VGG.Experiment results show that this model performs better in terms of accuracy,recognition speed and memory size.

视网膜光凝对糖尿病视网膜病变患者神经纤维层厚度的影响

目的:探讨分析糖尿病视网膜病变(diabetic retinopathy,DR)患者全视网膜激光光凝术(panretinal photocoagulation,PRP)治疗后1a视网膜神经纤维层(retinal nerve fiber layer,RNFL)厚度的变化。方法:选取2014-05/2017-06在我院行PRP治疗的92例92眼DR患者,采用OCT的DISC CIRCLE程序,测量分析以视盘为中心、直径3. 45mm范围DR患者PRP术前和术后1a (采用Follow-Up程序自动追踪模式)视盘周围RNFL厚度,按视盘上方(S)、下方(I)、鼻侧(N)、颞侧(T)4个象限分区所得的数值进行统计分析。结果:DR患者PRP术后1a较术前视盘周围上方、下方、鼻侧、颞侧和全周平均RNFL厚度明显变薄,且差异有统计学意义(均P<0. 05)。结论:PRP治疗可导致视网膜RNFL变薄,临床上应充分重视和考虑RNFL的损伤,更好地保护视网膜神经细胞的机能对DR治疗具有重要意义。

Polyoxypregnanes from the stems of Marsdenia tenacissima

From the stems ofMarsdenia tenacissima two new polyoxypregnanes were isolated, their structures were elucidated by 1D, 2D-NMR as 11α,12β-di-O-tigloyl-tenacigenin B （1） and tenacigenoside E （2）.

Doping effects of manganese on the catalytic performance and structure of NiMgO catalysts for controllabe synthesis of multi-walled carbon nanotubes

Doping effects of manganese （Mn） on catalytic performance and structure evolution of NiMgO catalysts for synthesis of multi-walled carbon nanotubes （MWCNTs） from methane were investigated for the first time. Addition of Mn in NiMgO catalyst can greatly improve the MWCNTs yield. Mno.2NiMgO catalyst among the tested ones gives the highest MWCNTs yield as 2244%, which is two times higher than that of the catalyst without Mn. The structure evolution, reduction behaviors and surface chemical properties of MnNiMgO catalysts with various Mn contents were studied in detail. It was found that the stable solid solution of NiMgO2 formed in NiMgO catalyst was disturbed by the addition of Mn. Instead, another solid solution of MnMg608 is formed. More amount of Ni can be reduced and dispersed on the catalyst surface to be acted as active sites. Importantly, the changes of Ni content on the surface are correlated with the Ni particle size and the outer diameter of MWCNTs, suggesting the controllable synthesis of MWCNTs over MnNiMgO catalysts.

HAPLN3基因在肾透明细胞癌中的表达及其与预后、免疫的关系

目的探讨透明质酸和蛋白多糖链接蛋白家族基因成员3(HAPLN3)在肾透明细胞癌(ccRCC)中的表达及其与预后、免疫的关系。方法利用多个公共数据库分析HAPLN3在ccRCC中的差异表达、预后价值,以及与肿瘤微环境、免疫细胞浸润、免疫检查点及免疫检查点阻断反应评分(TIDE)等的相关性,并行富集分析HAPLN3在ccRCC中的潜在作用机制。通过免疫组织化学法检测HAPLN3蛋白在癌组织和癌旁组织中的表达,采用实时荧光定量聚合酶链反应(qRT-PCR)和Western blotting检测ccRCC细胞株(OS-RC-2、ACHN)HAPLN3 mRNA和蛋白的表达。细胞转染siRNA沉默HAPLN3,用qRT-PCR检测不同ccRCC细胞株中HAPLN3基因沉默的有效性。采用CCK-8法检测HAPLN3基因表达降低对不同ccRCC细胞株增殖的影响。结果生物信息学分析结果表明,ccRCC中HAPLN3 mRNA相对表达量高于正常肾脏组织(P<0.05),在不同WHO/ISUP分级的ccRCC中发现G4组HAPLN3 mRNA相对表达量高于G3组(P<0.05)。生存分析结果表明,HAPLN3高表达组总体生存率(OS)低于低表达组(P<0.05),且G4组OS也低于G3组(P<0.05)。单因素Cox回归分析结果表明,HAPLN3高表达[HR=1.548(95%CI:1.325,1.801)]、高龄[HR=1.029(95%CI:1.016,1.042)]、高pT分期[HR=1.923(95%CI:1.632,2.265)]、高pN分期[HR=3.425(95%CI:1.818,6.456)]、高pTNM分期[HR=1.867(95%CI:1.638,12.12)]、高Grade分级[HR=2.291(95%CI:1.870,2.806)]是ccRCC患者不良预后的影响因素(P<0.05);多因素Cox回归分析结果表明,HAPLN3高表达[HR=1.430(95%CI:1.144,1.789)]、高龄[HR=1.006(95%CI:1.006,1.043)]、高pTNM分期[HR=1.661(95%CI:1.205,2.289)]、高Grade分级[HR=1.486(95%CI:1.070,2.065)]是ccRCC患者不良预后的独立影响因素(P<0.05)。HAPLN3 mRNA相对表达量与B淋巴细胞、CD4^(+)T淋巴细胞、CD8^(+)T淋巴细胞、中性粒细胞、巨噬细胞、树突状细胞浸润呈正相关(r_(s)=0.284、0.532、0.584、0.617、0.323和0.620,均P=0.000)。G4组CTLA4、LAG3、PDCD1、TIGIT mRNA相对表达量和TIDE评分高于G3组(P<0.05)。GESA富集分析结果表明,HAPLN3在ccRCC中与多条免疫及肿瘤通路相关。癌组织HAPLN3阳性表达率高于癌旁组织(P<0.05)。OSRC-2、ACHN细胞HAPLN3 mRNA和蛋白相对表达量高于HK-2细胞(P<0.05)。si-NC组、si-HAPLN3组不同时间点OS-RC-2、ACHN细胞的OD值比较,采用重复测量设计的方差分析,结果:①不同时间点OS-RC-2、ACHN细胞的OD值有差异(F=481.158和292.321,均P=0.000);②两组OS-RC-2、ACHN细胞的OD值有差异(F=27.471和255.219,均P=0.002);③两组OS-RC-2、ACHN细胞的OD值变化趋势有差异(F=20.799和11.301,P=0.017和0.040)。结论HAPLN3在ccRCC中表达上调,并与肿瘤细胞增殖相关,可能是ccRCC患者的独立预后标志物,并有作为免疫治疗靶点的潜在价值。

Ultra-deep adsorptive removal of thiophenic sulfur compounds from FCC gasoline over the specific active sites of CeHY zeolite

Adsorption desulfurization performance of Na Y,HY and Ce HY zeolites is evaluated in a miniature fixedbed flow by model gasoline containing with thiophene,tetrahydrothiophene,2-methylthiophene,benzothiophene or mixed sulfur compounds.The structural properties of adsorbents are characterized by XRD,N2-adsorption and XPS techniques.Adsorption desulfurization mechanisms of these sulfur compounds over the specific active sites of adsorbents as a major focus of this work,have been systematically investigated by using in situ FT-IR spectroscopy with single and double probing molecules.Desulfurization experimental results show that the Ce HY adsorbent exhibits superior adsorption sulfur capacity at breakthrough point of zero sulfur for ultra-deep removal of each thiophenic sulfur compound,especially in the capture of aromatic 2-methylthiophene(about ca.28.6 mgS/gadsorbent).The results of in situ FT-IR with single probing molecule demonstrate an important finding that high oligomerization ability of thiophene or 2-methylthiophene on the CeHY can promote the breakthrough adsorption sulfur capacity,mainly resulting from the synergy between Br?nsted acid sites and Ce(III)hydroxylated species active sites located in the supercages of Ce HY.Meanwhile,the result of in situ FT-IR with double probing molecules further reveals the essence of oligomerization reactions of thiophene and 2-methylthiophene molecules on those specific active sites.By contrast,the oligomerization reaction of benzothiophene molecules on the active sites of Ce HY cannot occur due to the restriction of cavity size of supercages,but they can be adsorbed on the Br?nsted acid sites via protonation,and on Ce(III)hydroxylated species and extra-framework aluminum hydroxyls species via direct"S-M"bonding interaction.As to the tetrahydrothiophene,adsorption mechanism is similar to that of benzothiophene,except in the absence of protonation.The paper can provide a new design idea of specific adsorption active sites in excellent desulfurization adsorbents for elevating higher quality of FCC gasoline in the future.

A causal variant rs3769823 in 2q33.1 involved in apoptosis pathway leading to a decreased risk of non-small cell lung cancer

Objective:Although our previous genome-wide association study(GWAS)has identified chromosome 2q33.1 as a susceptibility locus for non-small cell lung cancer(NSCLC),the causal variants remain unclear.The aims of this study were to identify the causal variants in 2q33.1 and to explore their biological functions in NSCLC.Methods:CCK-8,colony formation,EdU incorporation,Transwell,and quantitative real-time polymerase chain reaction assays were applied to examine variant function.The tumor xenograft model was used to examine variant function in vivo.Caspase-8 activity assays,flow cytometry analysis,and co-immunoprecipitation assays were used to explore the molecular mechanism.Results:The missense variant rs3769823(A>G),which caused the substitution of lysine with arginine at amino acid 14 in caspase-8(caspase-8K14R),was identified as a potential causal candidate in 2q33.1.Compared with the wild type caspase-8(caspase8WT)group,the caspase-8K14R group had higher expression of caspase-8 and cleaved caspase-8.Caspase-8K14R inhibited the proliferation and metastasis of human lung cancer cell lines in vitro.Moreover,caspase-8K14R repressed lung cancer cell growth in vivo.Mechanistically,caspase-8K14R was more sensitive than caspase-8WT to tumor necrosis factor-related apoptosis-inducing ligand(TRAIL)-mediated apoptosis and showed higher binding of caspase-8 and FADD.Conclusions:These results suggested that rs3769823 is the causal variant in chromosome 2q33.1 and is involved in an apoptosis pathway,leading to a decreased risk of NSCLC.

LaNiO3 as a Novel Anode for Lithium-Ion Batteries

Lithium-ion batteries(LIBs) have been developed for over 30 years;however, existing electrode materials cannot satisfy the increasing requirements of high-energy density, stable cycling, and low cost. Here, we present a perovskite-type LaNiO3 oxide(LNO) as a new negative electrode material. LNO was successfully synthesized by a sol-gel method. The microstructure and electrochemical performance of LNO calcined at various temperatures have been systematically investigated. The LNO electrode shows a high rate capability and long cycling stability. In a C-rate test, a specific capacity of 77 mAh/g was exhibited at 6 C. LNO can also deliver a specific capacity of 92 mAh/g after 200 cycles at 1 C. This paper presents a type of binary metal oxide as a new anode material for high-performance LIBs.

Sika Deer Behavior Recognition Based on Machine Vision

With the increasing intensive and large-scale development of the sika deer breeding industry,it is crucial to assess the health status of the sika deer by monitoring their behaviours.A machine vision-based method for the behaviour recognition of sika deer is proposed in this paper.Google Inception Net(GoogLeNet)is used to optimise the model in this paper.First,the number of layers and size of the model were reduced.Then,the 5×5 convolution was changed to two 3×3 convolutions,which reduced the parameters and increased the nonlinearity of the model.A 5×5 convolution kernel was used to replace the original convolution for extracting coarse-grained features and improving the model’s extraction ability.A multi-scale module was added to the model to enhance the multi-faceted feature extraction capability of the model.Simultaneously,the Squeeze-and-Excitation Networks(SE-Net)module was included to increase the channel’s attention and improve the model’s accuracy.The dataset’s images were rotated to reduce overfitting.For image rotation,the angle wasmultiplied by 30°to obtain the dataset enhanced by rotation operations of 30°,60°,90°,120°and 150°.The experimental results showed that the recognition rate of this model in the behaviour of sika deer was 98.92%.Therefore,the model presented in this paper can be applied to the behaviour recognition of sika deer.The results will play an essential role in promoting animal behaviour recognition technology and animal health monitoring management.

Androgen receptor mediated resistance in the progression of castration-resistant prostate cancer

The incidence of prostate cancer has increased year by year in the world.Despite improvements in diagnosis,surgical techniques,and drugs,survival rates of prostate cancer have improved little,and most prostate cancer-related deaths are as a result of castration resistant prostate cancer(CRPC),which progresses and metastasizes after surgical or medical castration.The pathogenesis of CRPC is still unclear.It has been found that the majority of CRPC patients have overexpression of androgen receptors(ARs),and there are many forms of changes in the signaling pathways that intersect with them during he process to CRPC.Micro ribonucleic acid(miRNA)plays an important role in regulating the expression and translation of prostate cancer target genes,and in the life cycle of cell cycle distribution and apoptosis.Relatedly,active changes in miRNA expression are also closely related to androgen.Therefore,the study of AR-related signaling pathways and AR and miRNA-related signaling pathways is of great significance in the treatment of CRPC.

Comparative Study on Characteristics and Development of Chinese and Western Architectural Culture

Architecture is an indispensable part of the development of human civilization and the carrier of human civilization.The evolution of architectural style can also reflect the development of a nation.With the continuous development of history,the preservation and development of historic sites has gradually become a topic of common concern in China and the west.However,with the continuous development of modern technology,there are fewer and fewer traditional cultural elements in the newly-built buildings,which lead to the gradual loss of some traditional architectural culture.In order to avoid the further aggravation of this phenomenon,something should be done.From the perspective of the development characteristics of Chinese and western architectural culture,the characteristics and differences of the development process of Chinese and western architecture were listed from ancient to modern times,and gradually the main reasons for the different development directions and characteristics were analyzed.In addition,according to the law and characteristics of the development of Chinese and western architecture,some methods on how to solve the inheritance of Chinese modern architecture to traditional culture were put forward.

Association rules analysis of Fufang Kushen injection in combination with traditional Chinese medicine or modern medications in treating Cervical cancer: real-world retrospective study

Objective: The present study aimed to analyze the association rules of Fufang Kushen injection in combination with other traditional Chinese medicine ( TCM) or modern medications in treating cervical cancer (CC) based on the electrical medical records extracted from real-world hospital information system. Methods: The clinicians’ prescriptions regarding to the combination of with TCM or modern medications were from hospital information system electronic medical data integration warehouse established by the Institute of Basic Medical Research of Chinese Medicine, China Academy of Chinese Medical Sciences, which integrated the hospital information system data of 22 hospitals. The association rules of the drug characteristics were analyzed through Apriori algorithm. Results: A total of 839 patients with CC were included. We found that is often combined with prescriptions which could clear heat, remove toxicity, supplement Qi. also combined with chemotherapeutic drugs, immunomodulatory drugs, 5-HT receptor blockers, and glucocorticoids. The combination presents a specific law. Conclusion: Fufang Kushen injection combined with hepatoprotective drugs, immunomodulators and glucocorticoids is often used to treat cervical cancer.

Herschel Investigation of Cores and Filamentary Structures in the Perseus Molecular Cloud

Cores and filamentary structures are the prime birthplaces of stars,and play key roles in the process of star formation.Latest advances in the methods of multi-scale source and filament extraction,and in making highresolution column density map from Herschel multi-wavelength observations enable us to detect the filamentary network structures in highly complex molecular cloud environments.The statistics for physical parameters shows that core mass strongly correlates with core dust temperature,and M/L strongly correlates with M/T,which is in line with the prediction of the blackbody radiation,and can be used to trace evolutionary sequence from unbound starless cores to robust prestellar cores.Crest column densities of the filamentary structures are clearly related with mass per unit length(M_(line)),but are uncorrelated by three orders ranging from~10^(20) to~10^(22) cm^(-2) with widths.Full width at half maximum has a median value of 0.15 pc,which is consistent with the 0.1 pc typical inner width of the filamentary structures reported by previous research.We find 70%of robust prestellar cores(135/199)embedded in supercritical filaments with M_(line),>16 M⊙pc^(-1),which implies that the gravitationally bound cores come from fragmentation of supercritical filaments.On the basis of observational evidence that the probability distribution function with power-law distribution in the Perseus south is flatter than in the north,the number of young stellar objects in the south is significantly less than that in the north,and dust temperature is different.We infer that the south region is more gravitationally bound than the north region.

Comparative Study on Characteristics and Development of Chinese and Western Architectural Culture

Architecture is an indispensable part of the development of human civilization and the carrier of human civilization.The evolution of architectural style can also reflect the development of a nation.With the continuous development of history,the preservation and development of historic sites has gradually become a topic of common concern in China and the west.However,with the continuous development of modern technology,there are fewer and fewer traditional cultural elements in the newly-built buildings,which lead to the gradual loss of some traditional architectural culture.In order to avoid the further aggravation of this phenomenon,something should be done.From the perspective of the development characteristics of Chinese and western architectural culture,the characteristics and differences of the development process of Chinese and western architecture were listed from ancient to modern times,and gradually the main reasons for the different development directions and characteristics were analyzed.In addition,according to the law and characteristics of the development of Chinese and western architecture,some methods on how to solve the inheritance of Chinese modern architecture to traditional culture were put forward.

老吾老以及人之老--法国奥尔贝克养老院

法国北部小镇奥尔贝克位于诺曼底附近，最近本土建筑事务所Dominique COU—Ion＆associes在这里完成了一个新的作品，一个养老院。项目从最初的规划到完成，用了7年时间，设计从2008年就开始了，施工从2012年开始，漫长的等待是值得的。

Molecular mechanism in the formation of pre-metastatic niches

Pre-metastatic niches(PMNs)are the microenvi-ronments prepared by the interaction of tumor cells and the surrounding microenvironment for the colonization of circulating tumor cells at distant metastatic sites and before metastasis and spreading.The formation of PMNs includes processes such as vascular leakage and permeability changes,coagulation abnor-malities,extracellular matrix remodeling,migration and recruit-ment of bone marrow-derived cells,and immunosuppression,in which tumor-derived exosomes,tumor-derived soluble factors(TDSFs),bone marrow-derived cells(BMDCs),etc.are crucial in this process.This article focuses on the pre-metastasis microen-vironment,in-depth analysis of representative factors such as tumor-derived secretory factors,exosomes,bone marrow-derived cells and myeloid-derived suppressor cells,and other molecular network mechanisms involved in the formation of PMNs,and introduces tumors The characteristics of the metastatic cascade and the selection of organ parts outline the different roles of related molecules in the regulation of metastasis.That provide an effective reference value in order to better understand the mechanisms of tumor metastasis,tumor metastasis look for potential markers and diagnosis and treatment of cancer.

Polysaccharide based supramolecular injectable hydrogels for in situ treatment of bladder cancer

Implantable system maximizes drug concentration and continuously releases drugs near the tumor,which is an effective tool to solve the difficult retention of chemotherapy drugs in bladder cancer.In this work,a novel polysaccharide supramolecular injectable hydrogel(CCA hydrogels for short)is rapidly constructed by simply mixing cationic chitosan,anionic sulfobutyl etherβ-cyclodextrin(SBE-β-CD)and a trace amount of silver ions.The injected hydrogel reconstituted and regained its shape in less than 1 h,and it can still maintain the elasticity suitable for the human body.By packaging the drug directly,the gel achieves a high concentration of doxorubicin,an anticancer drug.Using MB49-luc cells as the model of bladder tumor for anti-tumor in vivo,the CCA-DOX gel has obvious inhibitory effect on bladder tumor,and its inhibitory effect is much greater than that of free DOX.Therefore,this self-healing injectable hydrogel has great potential for in situ treatment of bladder cancer.