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High nitrogen fertilizer input enhanced the microbial network complexity in the paddy soil

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Soil Ecology Letters 2024年第2期6卷 97-109页

作者： yanan Chen yan Li Tianyi Qiu Haoran He Ji {2. Chengjiao Duan Yongxing Cui Min Huang Chunyan Wu Linchuan Fang The Research Center of Soil and Water Conservation and Ecological Environment Chinese Academy of Sciences and Ministry of EducationYangling712100China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Soil and Water Conservation CAS and MWRYangling712100China university of Chinese Academy of Sciences Beijing100049China Institute of Environment Resource and Soil Fertilizer Zhejiang Academy of Agricultural SciencesHangzhou310021China College of Natural Resources and Environment Northwest A&F UniversityYangling712100China Hubei Province Key Laboratory for Geographical Process Analysis and Simulation Central China Normal UniversityWuhan430079China department of Ecohydrology Leibniz Institute of Freshwater Ecology and Inland FisheriesBerlin12587Germany Sino-French Institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing100871China College of Resources and Environmental Engineering Wuhan University of TechnologyWuhan430070China CAS Center for Excellence in Quaternary Science and Global Change Xi’an710061China

N fertilizer altered bacterial community compositions by changing soil nutrients.•Bacterial ammonia oxidation became predominated with the increasing N rate.•Excessive N input caused the information of a more complex microbial network.•Intensified microbial competition by excessive N was due to negative link ***(N)fertilization drives the structure and function of soil microbial communities,which are crucial for regulating soil biogeochemical cycling and maintaining ecosystem *** the N fertilizer effects on soil microbial composition and diversity have been widely investigated,it is generally overlooked that ecosystem processes are carried out via complex associations among microbiome ***,we examined the effects of five N fertilization levels(0,135,180,2.5,and 360 kg N ha−1)on microbial co-occurrence networks and key functional taxa such as ammonia-oxidizers in paddy *** results showed that N addition altered microbial community composition,which were positively related to soil total N and available phosphorus(P)*** abundance of ammonia-oxidizing archaea(AOA)significantly decreased after N addition,whereas ammonia-oxidizing bacteria(AOB)increased in N360 *** with low-N group(N0 and N135),the high-N group(N2.5 and N360)shaped more complex microbial webs and thus improved the stability of the microbial *** least squares path modeling further revealed that N fertilizer had a higher effect on microbial network complexity in the high-N group(0.83)than the low-N group(0.49).Although there were more positive links across all microbial networks,the proportion of negative links significantly increased in the high-N network,suggesting that excess N addition aggravated the competition among microbial *** these interactions between microbial communities and N fertilization advances our understanding of biogeochemical processes in paddy soils and their effects on nutrient supply to

关键词： nitrogen fertilizer paddy soil co-occurrence network microbial interaction

DEAD-box helicase 17(DDX17)protects cardiac function by promoting mitochondrial homeostasis in heart failure

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2774-2790页

作者： Mingjing yan Junpeng Gao Ming Lan Que Wang Yuan Cao Yuxuan Zheng Yao yang Wenlin Li Xiaoxue Yu Xiuqing Huang Lin Dou Bing {2. Junmeng {2. Hongqiang Cheng Kunfu Ouyang Kun Xu Shenghui Sun Jin {2. Weiqing Tang Xiyue Zhang Yong Man Liang Sun Jianping Cai Qing He Fuchou Tang Jian Li Tao Shen The Key Laboratory of Geriatrics Beijing Institute of GeriatricsInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijing Hospital/National Center of Gerontology of National Health CommissionBeijing 100730China Peking university Fifth School of Clinical Medicine Beijing 100730China department of Laboratory Medicine Huashan HospitalShanghai Medical CollegeFudan UniversityShanghai 200040China Biomedical Pioneering Innovation Center School of Life SciencesPeking UniversityBeijing 100871China Emergency Center Zhongnan Hospital of Wuhan UniversityWuhan 430071China department of Cardiology Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100730China Graduate School of Peking Union Medical College Beijing 100730China department of Health Care Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijing 100730China Peking-Tsinghua Center for Life Sciences Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China department of Pathology and Pathophysiology and department of Cardiology at Sir Run Run Shaw Hospital Zhejiang University School of MedicineHangzhou 310058China department of Cardiovascular Surgery Peking University Shenzhen HospitalShenzhen 518036China Experimental Technology Center for Life Sciences at Beijing normal university Beijing 100875China

DEAD-box helicase 17(DDX17)is a typical member of the DEAD-box family with transcriptional cofactor *** DDX17 is abundantly expressed in the myocardium,its role in heart is not fully *** generated cardiomyocyte-specific Ddx17-knockout mice(Ddx17-cKO),cardiomyocyte-specific Ddx17 transgenic mice(Ddx17-Tg),and various models of cardiomyocyte injury and heart failure(HF).DDX17 is downregulated in the myocardium of mouse models of heart failure and cardiomyocyte ***-specific knockout of Ddx17 promotes autophagic flux blockage and cardiomyocyte apoptosis,leading to progressive cardiac dysfunction,maladaptive remodeling and progression to heart *** of DDX17 expression in cardiomyocytes protects cardiac function under pathological *** studies showed that DDX17 can bind to the transcriptional repressor B-cell lymphoma 6(BCL6)and inhibit the expression of dynamin-related protein 1(DRP1).When DDX17 expression is reduced,transcriptional repression of BCL6 is attenuated,leading to increased DRP1 expression and mitochondrial fission,which in turn leads to impaired mitochondrial homeostasis and heart *** also investigated the correlation of DDX17 expression with cardiac function and DRP1 expression in myocardial biopsy samples from patients with heart *** findings suggest that DDX17 protects cardiac function by promoting mitochondrial homeostasis through the BCL6-DRP1 pathway in heart failure.

关键词： DDX17 homeostasis cardiac

Genome assembly of autotetraploid Actinidia arguta highlights adaptive evolution and enables dissection of important economic traits

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Plant Communications 2024年第6期5卷 173-192页

作者： Xue-Mei Lu Xiao-Fen Yu Guo-Qiang Li Ming-Hao Qu Huan Wang Chuang liu Yu-Ping Man Xiao-Han Jiang Mu-Zi Li Jian Wang Qi-Qi Chen Rui Lei Cheng-Cheng Zhao Yun-Qiu Zhou Zheng-Wang Jiang Zuo-Zhou Li Shang Zheng Chang Dong Bai-Lin Wang yan-Xiang Sun Hui-Qin Zhang Jie-Wei Li Quan-Hui Mo Ying Zhang Xin Lou Hai-Xu Peng Ya-Ting Yi He-Xin Wang Xiu-Jun Zhang Yi-Bo Wang Dan Wang Li Li Qiong Zhang Wen-Xia Wang Yongbo liu Lei Gao Jin-Hu Wu yan-Chang Wang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina Key Laboratory of Western China’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhouGansuChina College of Life Sciences University of Chinese Academy of SciencesBeijingChina Wuhan Frasergen Bioinformatics Co. LtdWuhanHubeiChina Institute of Soil and Fertilizer Anhui Academy of Agricultural SciencesHefeiChina College of Agricultural Sciences Xichang UniversityXichangSichuanChina department of Horticulture Heilongjiang Academy of Agricultural SciencesHarbinHeilongjiangChina College of Life Sciences Langfang Normal UniversityLangfangHebeiChina Institute of Horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiangChina Guangxi Institute of Botany Chinese Academy of SciencesGuilinGuangxiChina Xi’an Botanical Garden of Shaanxi Province Institute of Botany of Shaanxi ProvinceXi’anShaanxiChina Institute of Modern Agricultural Research Dalian UniversityDalianLiaoningChina Bioinformatics Center College of Plant Science and TechnologyBeijing University of AgricultureBeijingChina College of Agriculture Eastern Liaoning UniversityDandongLiaoningChina Dalian Institute of Chemical Physics Chinese Academy of SciencesDalianLiaoningChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina Hubei Hongshan Laboratory WuhanHubeiChina The New Zealand Institute for Plant and Food Research Limited AucklandNew Zealand

Actinidia arguta,the most widely distributed Actinidia species and the second cultivated species in the genus,can be distinguished from the currently cultivated Actinidia chinensis on the basis of its small and smooth fruit,rapid softening,and excellent cold *** evolution of tetraploid Actinidia species and the genetic basis of their important agronomic traits are still ***,we generated a chromosome-scale genome assembly of an autotetraploid male *** *** genome assembly was 2.77 Gb in length with a contig N50 of 9.97 Mb and was anchored onto 116 *** and clustering of 101 geographically representative accessions showed that they could be divided into two geographic groups,Southern and Northern,which first diverged 12.9 million years *** underwent two prominent expansions and one demographic bottleneck from the midPleistocene climate transition to the late *** genomics studies using paleoclimate data enabled us to discern the evolution of the species’adaptation to different historical *** genes(AaCEL1,AaPME1,and AaDOF1)related to flesh softening were identified by multi-omics analysis,and their ability to accelerate flesh softening was verified through transient expression assays.A set of genes that characteristically regulate sexual dimorphism located on the sex chromosome(Chr3)or autosomal chromosomes showed biased expression during stamen or carpel *** chromosome-level assembly of the autotetraploid *** genome and the genes related to important agronomic traits will facilitate future functional genomics research and improvement of ***.

关键词： kiwiberry dioecism adaptive evolution paleoclimate GEA rapid softening

明胶三维微球装载人脐带间充质干细胞修复慢性肌腱病

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中国组织工程研究 2025年第7期29卷 1356-1362页

作者：李帝均酒精卫刘海峰闫磊李松岩王斌山西医科大学第二医院骨科山西省太原市030000 浙江大学医学院附属第一医院骨科浙江省杭州市310006

背景:肌腱组织因缺少血管而修复困难,如何促进肌腱的恢复和提高肌腱损伤后干细胞治疗的效果,一直是临床及科研的研究热点和重点。目的:将人脐带间充质干细胞与明胶微载体支架结合构建组织工程化干细胞,通过体外实验与大鼠体内实验观察... 详细信息

背景:肌腱组织因缺少血管而修复困难,如何促进肌腱的恢复和提高肌腱损伤后干细胞治疗的效果,一直是临床及科研的研究热点和重点。目的:将人脐带间充质干细胞与明胶微载体支架结合构建组织工程化干细胞,通过体外实验与大鼠体内实验观察明胶微载体培养的人脐带间充质干细胞对肌腱病的治疗效果及作用机制。方法:(1)体外细胞实验:将人脐带间充质干细胞接种于三维明胶微载体后观察细胞活性以及存活情况,以常规培养的人脐带间充质干细胞作为对照;(2.动物体内实验:将成年SD大鼠随机分为正常组、肌腱病组、2.组(肌腱病+常规培养人脐带间充质干细胞)、3D组(肌腱病+明胶微载体三维培养的人脐带间充质干细胞),每组6只,治疗4周后进行动物行为学检测以及跟腱病理组织形态观察。结果与结论:(1)体外细胞实验:接种于明胶微载体的人脐带间充质干细胞存活率高,且随着时间延长细胞增殖速率增加;与对照组相比,三维明胶微载体培养的细胞活性更好;(2.动物体内实验:治疗4周后,与肌腱病组比较,3D组大鼠下肢功能恢复良好及组织病理学评分显著改善,而2.组也可一定程度改善肌腱病损伤,但效果不及3D组;(3)结果表明,三维明胶微载体培养的人脐带间充质干细胞可以促进肌腱损伤组织修复再生,且修复效果优于常规培养人脐带间充质干细胞。

关键词：肌腱病肌腱损伤人脐带间充质干细胞组织工程化干细胞微载体三维培养

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing normal university Beijing Brown university ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central China normal university WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan China academy of engineering physics MianyangSichuan China building materials academy Beijing China Center of Advanced Science and Technology Beijing China Institute of Atomic Energy Beijing China Jiliang university HangzhouZhejiang China Nuclear Instrument CO. LTDBeijing China university of Geosciences Beijing China university of Geosciences WuhanHubei China university of Mining and Technology XuzhouJiangsu China West normal university NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok City university of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu university DalianLiaoning Dalian university of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East China university Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by China,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a Booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2.s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2.15)and the Conceptual Design Report(CDR,2.18),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2.2.-2.2.,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2.30s.

关键词： initiated exceeding precise

MTHFR基因变异致儿童高同型半胱氨酸血症15例分析

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中华医学杂志 2024年第24期104卷 2256-2259页

作者：刘飞梁黎黎邱文娟张惠文占霞徐烽张彦张建美杨素红韩连书杭州市儿童医院内分泌遗传代谢科杭州310014 上海交通大学医学院附属新华医院小儿内分泌遗传科上海200092

回顾性分析2.15年11月至2.2.年9月就诊于杭州市儿童医院及上海交通大学医学院附属新华医院的MTHFR基因变异致高同型半胱氨酸血症患儿的主要临床表现、生化代谢指标、基因变异及治疗等资料。共纳入15例患儿,其中男10例,女5例,起病年龄6 d... 详细信息

回顾性分析2.15年11月至2.2.年9月就诊于杭州市儿童医院及上海交通大学医学院附属新华医院的MTHFR基因变异致高同型半胱氨酸血症患儿的主要临床表现、生化代谢指标、基因变异及治疗等资料。共纳入15例患儿,其中男10例,女5例,起病年龄6 d~18岁,确诊年龄40 d~18岁。新生儿筛查确诊病例1例,余14例均为发病后基因诊断。主要表现为喂养困难、肌张力减退、癫痫、发育迟缓。所有患儿血同型半胱氨酸水平均升高,治疗前后血同型半胱氨酸分别为(151.46±57.44)μmol/L及(69.96±32.88)μmol/L,治疗后较治疗前显著下降,差异有统计学意义(P2.,11.96)μmol/L,较参考范围正常或略下降,治疗后蛋氨酸均恢复至正常。共检出MTHFR基因变异19种,6种为未报道变异、13种为已知变异。其中最常见变异为c.1316C>T(p.L439P)(16.6%,5/30)。所有患儿存在不同程度的神经系统损害,7例经甜菜碱及亚叶酸等代谢干预治疗后好转,8例出现发育落后,1例仍癫痫发作频繁。MTHFR基因变异致高同型半胱氨酸血症患儿临床表现异质性大,早发型及基因纯合变异多预后不良,血同型半胱氨酸、血氨基酸和基因检测有助于早期诊断。

关键词：氨基酸代谢障碍,先天性亚甲基四氢叶酸还原酶高同型半胱氨酸血症 MTHFR基因串联质谱

Facile generation of highly durable thiol-functionalized polyhedral oligomeric silsesquioxane based superhydrophobic melamine foam

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Frontiers of Chemical Science and Engineering 2022年第8期16卷 1247-1258页

作者： Meng Li Yuanfeng Fang Chun liu Mengmeng Zhou Xiaomei Miao Yongbing Pei Yue yan Wenjun Xiao Huayu Qiu Lianbin Wu Key Laboratory of Organosilicon Chemistry and Materials Technology Ministry of EducationHangzhou Normal UniversityHangzhou 311121China

In this study,a durable superhydrophobic/superoleophilic melamine foam was fabricated by a facile and rapid one-step thiol-ene click chemistry and Michael addition reaction,which demonstrated excellent robustness in oil/water ***,1H,1H,2.-perfluoro-1-hexene reacted with thiol-functionalized polyhedral oligomeric silsesquioxane via the thiol-ene click chemistry to obtain a fluorinated thiol-functionalized polyhedral oligomeric silsesquioxane ***,the melamine foam was immersed to the solution system to form nanoaggregates on the melamine foam surface by the Michael addition reaction in the presence of ultraviolet *** micro/nano rough structure and low surface energy of the nanoaggregates layer endowed the pristine melamine foam with superhydrophobicity;the water contact angle was greater than 150°.More importantly,the as-prepared melamine foam could withstand harsh conditions,such as a corrosive solution environment,strong ultraviolet light,mechanical compression,high and low temperature exposure,and ultrasonic *** by gravity,the as-prepared melamine foam could efficiently separate the oil/water mixtures and maintain 98%separation efficiency at high and low *** addition,it maintained the desirable absorption capability in different oil/organic solvents even after 15 absorption ***,this facile,low-cost,and robust onestep method provides important support for the superhydrophobic oil/water separation field.

关键词： superhydrophobic melamine foam thiol-func tionalized polyhedral oligomeric silsesquioxane durable,oil/water separation

Warming‑induced changes of broccoli head to cauliflower‑like curd in Brassica oleracea are regulated by DNA methylation as revealed by methylome and transcriptome co‑profiling

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Molecular Horticulture 2022年第1期2卷 318-332页

作者： Zilei Yao Lu Yuan Ke liu Tingjin Wang Bin liu {2. Zhao Susheng Gan Liping Chen department of Horticulture College of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China Plant Biology Section School of Integrative Plant ScienceCornell UniversityIthacaNY 14853USA Present address:College of Agronomy and Biotechnology Yunnan Agricultural UniversityKunming 650201China

Increasingly warming temperature impacts on all aspects of growth and development in *** development is a complex process that is very sensitive to ambient temperature,and warming temperatures often lead to abnor-mal flower development and remarkably reduce the quality and yield of inflorescent vegetables and many other crops,which can be exemplified by Brassica oleracea *** Harmony F1,a broccoli cultivar,whose floral develop-ment is ceased at inflorescence meristem(at 2.℃)or floral primordium stage(at 2.℃),forming a cauliflower-like curd(2.℃)or intermediate curd(2.℃)instead of normal broccoli head at 16℃.However,the underlying molecular regulatory mechanisms are not well *** we report that warming temperature(2.℃ or 2.℃)induced hypermethylation of the genome,especially the promoter regions of such sets of genes as ribosome biogenesis-related and others,leading to the suppression of the apex-highly-expressed distinctive genes,subsequently resulting in the abnormal floral development,as revealed by methylome and transcriptome *** regulation of warming-induced abnormal floral development in broccoli was further verified by the fact that the DNA methylation inhibitor 5-azacytidine(5-azaC)released the expression of genes from the warming temperature-induced suppres-sion,and restored the broccoli development to normalcy at warming *** research provided new approaches to breeding broccoli and other crops for growing in wider or warmer temperature zones.

关键词： Brassica oleracea DNA methylation Floral development cessation Global warming Heat stress

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面部自体脂肪注射引发兔血管栓塞的实验研究

中华医学美学美容杂志 2024年第3期30卷 286-291页

作者：欧艳罗英杰梁俊芳梁淑芳易成刚刘沙陕西中医药大学附属医院整形美容外科西安712000 联勤保障部队第969医院整形美容外科呼和浩特01005 浙江大学第二附属医院整形美容外科杭州310000

目的探讨对实验兔面动脉注射不同类型脂肪引起兔失明、脑梗死等严重并发症的发生机制。方法2.2.年5月至2.2.年10月,在陕西中医药大学临床实验室选取雄性新西兰兔64只,分为8组,每组8只;分别为研磨脂肪组、脂肪颗粒组、脂肪脂质、生理盐水... 详细信息

目的探讨对实验兔面动脉注射不同类型脂肪引起兔失明、脑梗死等严重并发症的发生机制。方法2.2.年5月至2.2.年10月,在陕西中医药大学临床实验室选取雄性新西兰兔64只,分为8组,每组8只;分别为研磨脂肪组、脂肪颗粒组、脂肪脂质、生理盐水组,每组又分为0.2.ml组和0.4 ml组。从兔腹股沟切取脂肪,将脂肪切碎或用胶原酶Ⅰ处理,分离脂肪脂质和脂肪颗粒及其他组织。在下颌角下方沿切口暴露出兔面部动脉,将0.2.ml或0.4 ml切碎脂肪、脂肪颗粒、脂质逆行注射到各个组兔面动脉,然后在显微镜下缝合切口。术后观察和记录眼科和神经学症状,并进行视觉电生理和眼底镜检查以验证视力和眼底动脉梗阻。结果术后2.,0.2.ml组出现眼科症状的情况分别为研磨脂肪组8只、脂肪颗粒组5只、脂肪脂质组0只、生理盐水组0只;0.4 ml组出现眼科症状的情况分别为研磨脂肪组8只,脂肪颗粒组7只、脂肪脂质组1只、生理盐水组0只。0.4 ml组出现神经系统症状的情况分别为5、2.0、0只。接受注射后死亡情况,0.2.ml组分别为3、1、0、0只,0.4 ml组分别为8、4、0、0只。结论给实验兔注射未经胶原酶Ⅰ处理的研磨脂肪组织更易引起严重并发症,单纯脂质进入血管不会阻塞相关动脉,脂肪体积大小与术后并发症的发生率呈正相关。

关键词：兔移植,自体面部填充注射血管栓塞并发症失明解剖