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Cloning and characterization of one putative muscle actin gene only expressed at the larval stages from brown planthopper, Nilaparvata lugens

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Journal of Agricultural Science and Technology 2008年第1期2卷 1-5页

作者： GU Jian-hua LIU shu-hua yao Xiang-mei SONG Feng ZHANG Yi-xi LIU Ze-wen Key Laboratory of Monitoring and Management of Plant Disease and Insect Ministry of Agriculture Nanjing Agricultural University Nanjin g 210095 China

An actin gene （BPH-Actin3） from the important rice pest brown planthopper, Nilaparvata lugens, was cloned and gene expression was characterized at different development stages. The gene was 1461bp with an open reading frame of l l31bp coding for a 376 amino acids protein, with 330 nucleotides of the 3＇-untranslation region （3＇-UTR）. The amino acid sequence deduced from the nucleotide sequence showed higher similarities to other insect muscle actins （94-95%） than those to non-muscle actins （87-93%）. The 3＇-UTR contains several AU-rich elements （AREs） AUUUA/UAAAU and one extended ARE UAAAAAU, which may function in regulating mRNA decay. Northern blot and RT-PCR studies showed BPH-Actin3 expressed at brown planthopper full larval stages with the highest mRNA levels at 3rd and 4th instar stages, but not expressed at egg and adult stages. Because the 3rd and 4th instars are the key development stages for brown planthopper wing-form determination, it was thought BPH-Actin3 might play important roles in brown planthopper wing development.

关键词： brown planthopper actin BPH-Actin3 northernblot gene expression

Enantioselective reductive conjugate alkenylation of α,β-enones with keto alkenyl acetates by nickel catalysis

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Science China Chemistry 2025年第1期68卷 157-162页

作者： Rong-De He Yun-Lei Luo Qiu-Quan Pan Qi-Wei yao Xing-Zhong shu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering Lanzhou University

Reactions involving alkenyl acetates offer cost-effective and environmentally friendly routes for alkene synthesis, yet their asymmetric variant remains elusive. Concurrently, asymmetric conjugate alkenylation predominantly centered on nucleophilic addition using alkenyl–M. This manuscript presents an asymmetric reductive conjugate alkenylation reaction involving alkenyl acetates. The method facilitates the enantioselective addition of keto alkenyl groups to α,β-enones, resulting in the formation of unsaturated diketones—a class of useful structural motifs that are challenging to access otherwise. The use of electron-rich Pyroxy ligand is essential for achieving both high reaction efficiency and enantioselectivity.

关键词： nickel alkenylation asymmetric cross-coupling alkenes

Surface Structure and Reconstructions of HgTe(111)Surfaces

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Chinese Physics Letters 2018年第2期35卷 71-74页

作者： Xin-Yi Yang Guan-Yong Wang Chen-Xiao Zhao Zhen Zhu Lu Dong Ai-Min Li Yang-Yang Lv shu-hua yao Yan-Bin Chen Dan-Dan Guan Vao-gi Li Hao Zheng Dong Qian Canhua Liu Yu-Lin Chen Jin-Feng Jia Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education) Department of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240 National Laboratory of Solid State Microstructures&Department of Materials Science and Engineering Nanjing UniversityNanjing 210093 National Laboratory of Solid State Microstructures&Department of Physics Nanjing UniversityNanjing 210093 Clarendon Laboratory Department of PhysicsUniversity of OxfordOxford OX1 3PUUK Collaborative Innovation Center of Advanced Microstructures Nanjing 210093

Hg Te(111)surface is comprehensively studied by scanning tunneling microscopy/spectroscopy(STS).In addition to th√e prim√itive(1×1)√hexagonal lattice,six reconstructed surface structures are observed:(2×2),2×1,4×1,3×(1/2)3,2(1/2)2×2 and(1/2)11×***(2×2)reconstructed lattice maintains the primitive hexagonal symmetry,whi√le the lattices of the other five reconstructions are ***,the topographic features of the3×(1/2)3 reconstruction are bias dependent,indicating that they have both topographic and electronic *** STSs obtained at different reconstructed surfaces show a universal dip feature with size~100 mV,which may be attributed to the surface *** results reveal the atomic structure and complex reconstructions of the cleaved Hg Te(111)surfaces,which paves the way to understand the rich properties of Hg Te crystal.

关键词： Surface structure

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Trimetallic mesoporous PdCuRu for efficient formate electrosynthesis from polyethylene terephthalate recycling

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Science China Chemistry 2025年

作者： Yuting Li Huiqin yao Lizhi Sun shu Han Xiaoxiang Xu Guangyin Fan Ben Liu College of Chemistry and Materials Science Sichuan Normal University Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University School of Basic Medical Sciences Ningxia Medical University Department of Otorhinolaryngology-Head and Neck Surgery Zhongnan Hospital of Wuhan University

Electrochemical recycling of waste polyethylene terephthalate（PET） plastics represents a green and sustainable route to produce valuable fuels and address serious environmental issues. Despite some encouraged achievements, their progress is still slower because of the lack of highly active and selective electrocatalysts. Here, we reported an efficient PET recycling route with trimetallic PdCuRu mesoporous nanospheres（MSs） as a high-performance electrocatalyst that achieved selective electrosynthesis of valuable formate from PET hydrolysate（PETH） electrooxidation. Penetrated metal mesopores and trimetallic compositions of PdCuRu MSs synergistically optimized electronic structures of Pd sites and changed chemisorption properties of intermediates, which disclosed a high formate Faradic efficiency of 97% and impressive yield rate of 0.49 mmol h-1cm-2in an alkaline solution. Meanwhile, this electrocatalyst held good electrocatalytic stability, retaining high formate Faradic efficiency and yield rate even being performed for 10 cycles, which highlighted its potential applications for practical PET recycling. Our study provides a powerful strategy for designing high-performance electrocatalysts toward selective electro-synthesis of valuable fuels from various waste plastics.

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Infiltration by monocytes of the central nervous system and its role in multiple sclerosis: reflections on therapeutic strategies

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Neural Regeneration Research 2025年第3期20卷 779-793页

作者： Guangyong Zhang Qing yao Chubing Long Pengcheng Yi Jiali Song Luojia Wu Wei Wan Xiuqin Rao Yue Lin Gen Wei Jun Ying Fuzhou hua Department of Anesthesiology the Second Affiliated Hospital of Nanchang UniversityNanchangJiangxi ProvinceChina Key Laboratory of Anesthesiology of Jiangxi Province NanchangJiangxi ProvinceChina

Mononuclear macrophage infiltration in the central nervous system is a prominent feature of neuroinflammation. Recent studies on the pathogenesis and progression of multiple sclerosis have highlighted the multiple roles of mononuclear macrophages in the neuroinflammatory process. Monocytes play a significant role in neuroinflammation, and managing neuroinflammation by manipulating peripheral monocytes stands out as an effective strategy for the treatment of multiple sclerosis, leading to improved patient outcomes. This review outlines the steps involved in the entry of myeloid monocytes into the central nervous system that are targets for effective intervention: the activation of bone marrow hematopoiesis, migration of monocytes in the blood, and penetration of the blood–brain barrier by monocytes. Finally, we summarize the different monocyte subpopulations and their effects on the central nervous system based on phenotypic differences. As activated microglia resemble monocyte-derived macrophages, it is important to accurately identify the role of monocyte-derived macrophages in disease. Depending on the roles played by monocyte-derived macrophages at different stages of the disease, several of these processes can be interrupted to limit neuroinflammation and improve patient prognosis. Here, we discuss possible strategies to target monocytes in neurological diseases, focusing on three key aspects of monocyte infiltration into the central nervous system, to provide new ideas for the treatment of neurodegenerative diseases.

关键词： blood–brain barrier macrophages monocytes multiple sclerosis neuroinflammation review therapy

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通海海菜花的核型研究

陕西师范大学学报（自然科学版） 2001年第S1期29卷 84-87页

作者：翟书华姚忠庆邹晓菊昆明高等师范专科学校生物系云南昆明650031

首次报道产于我国云南省的通海海菜花 (*** .Li)的体细胞染色体数目和核型 ( 2n =2x =2 2 =1 8m + 2sm + 2st) .属“2B”型 ,与海菜花属 (Ottelia)的核型非常相近。

关键词：通海海菜花海菜花染色体核型

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Metastable seed-crystals: epitaxial growth of branched-array organic heterostructure nanowires

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Science China Chemistry 2025年

作者： Jin Feng Zhen-Yu Geng Ting-yao Song Ying-Xin Ma Chuan-Zeng Wang Wei Zhang Hong-Tao Lin Jin Zhou shu-Ping Zhuo shu-Hai Chen Xue-Dong Wang School of Chemistry and Chemical Engineering Shandong University of Technology Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesSoochow University College of Chemistry and Chemical Engineering Hunan Normal University

Tunable light–matter interactions are exhibited by organic low-dimensional crystals, making these crystals a promising platform for organic photonics. However, the precise synthesis of organic low-dimensional crystals remains challenging due to the stochastic nature of molecular nucleation processes. Herein, the directed nucleation process is driven by the introduction of metastable seed-crystals as the trunk, which ultimately leads to branched-array organic heterostructures. The successful formation of organic heterostructures with high-density branched arrays is attributed to the highest attachment energy (Eatt（023）=-104.25 kcal mol-1) of the exposed （023） crystal plane during the seed-crystal growth route. Significantly, these as-prepared heterostructures inherently have an ultralow lattice mismatch ratio η of 0.7%between trunk and branch, which contributes to the multi-channel photon transportation. Therefore, this work provides valuable insights into a versatile synthetic strategy for accessing low-dimensional heterostructures for integrated optoelectronics.

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Palladium installed copper-organic framework for C–C coupling reactions

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Science China Chemistry 2025年

作者： Yu-Mei Wang Mei-Xia Tao Kai-Ming Mo Xu Chen shu-hua Zhong Elena S shubina Guo-Hong Ning Dan Li College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Supramolecular Coordination ChemistryJinan University A.N.Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences

The formation of C–C bonds is a crucial aspect of organic synthesis. Synthesists' long-term objective is to identify novel catalysts to optimize reaction systems based on traditional transition metal catalysis. This study explores the synthesis and catalytic potential of palladium-installed covalent metal-organic frameworks(CMOFs) based on copper cyclic trinuclear units(Cu-CTUs). By incorporating palladium ions into the imine-based framework JNM-7 through a straightforward immersion method, we achieved a notable enhancement in catalytic activity for critical C–C coupling reactions, including C–H arylation and Sonogashira cross-coupling. The resulting JNM-7-Pd demonstrated remarkable stability and recyclability, maintaining its efficiency over at least three cycles without any decline in efficiency.

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Clinicopathological differences between patients with schistosomal appendicitis and non schistosomal appendicitis:A retrospectively study of past ten years

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World Journal of Clinical Cases 2025年第2期13卷 24-32页

作者： Xiao-Yi Wang yao Hao Zi-Jian Wang Xiu-Liang Xu Jiang-hua Yang Department of Infectious Diseases The First Affiliated of Wannan Medical CollegeWuhu 241001Anhui ProvinceChina

BACKGROUND Chronic schistosomiasis causes multiple organ and multiple system diseases,especially the digestive *** eggs are mainly deposited in the stomach,liver and colorectal,but a few eggs are deposited in the appendix and cause *** present,there are few studies on schistosomal *** To explore the differences in epidemiological,clinical and pathological characteristics between schistosomal appendicitis and non-schistosomal appendicitis over the past decade in order to assess the impact of schistosomiasis on *** The differences of general data,clinical data and laboratory examination data of patients with appendicitis from October 2013 to October 2023 were retrospectively *** patients were divided into two groups for *** were 136 patients in schistosomal appendicitis group and 5418 patients in non-schistosomal appendicitis *** Schistosomal appendicitis accounted for 2.45%of all patients with appendicitis,and the annual proportion in the past decade was 2.2%,2.9%,1.8%,1.9%,3.4%,3.1%,1.9%,1.6%,3%,2.6%,*** prevalence of schistosomal appendicitis was middle-aged and elderly males,with an average age of 61.73±15.335 *** main population of non-schistosomal appendicitis was middle-aged men,with an average age of 35.8±24.013 years(P<0.001).The distribution of pathological types of appendicitis was different between the two groups(P<0.001).The incidence of acute suppurative appendicitis in non-schistosomal appendicitis was higher than that in schistosomal appendicitis[odds ratio(OR)=0.504;95%confidence interval(CI):0.349-0.728;P<0.001].The proportion of acute attack of chronic appendicitis in schistosomal appendicitis was higher than that in non-schistosomal appendicitis(OR=2.614;95%CI:1.815-3.763;P<0.001).The proportion of schistosomal appendicitis patients complicated with colorectal cancer was higher than that of nonschistosomal appendicitis patients(OR=5.087;95%CI:1.427-

关键词： Schistosomal appendicitis Schistosomiasis Appendix Colorectal cancer Clinicopathological characteristics