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过敏原综合数据库COMPARE的介绍和应用 被引量:1
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作者 赵岚 高中山 《食品安全质量检测学报》 CAS 北大核心 2023年第2期43-49,共7页
随着分子生物学和基因组、蛋白组学技术的高速发展,越来越多的过敏原蛋白得到鉴定。为了提高对过敏原的研究及其在食品安全上的应用,很多机构都建立了不同类型的过敏原数据库。本文详细介绍了由美国健康与环境科学研究所(Health and Env... 随着分子生物学和基因组、蛋白组学技术的高速发展,越来越多的过敏原蛋白得到鉴定。为了提高对过敏原的研究及其在食品安全上的应用,很多机构都建立了不同类型的过敏原数据库。本文详细介绍了由美国健康与环境科学研究所(Health and Environmental Sciences Institute,HESI)协调组织国际合作团队建立的一个过敏原综合数据库COMPARE (COMprehensive Protein Allergen REsource),该数据库通过高通量序列分选算法结合专家人工审核方法,从各个公共蛋白质数据库、其他过敏原数据库以及相关文献中筛选过敏原,每年更新一次。此外还开发了基于FASTA算法的序列比对工具COMPASS (COMPare Analysis of Sequences with Software),允许用户进行实时序列比对。该数据库已广泛应用于新过敏原蛋白的鉴定以及蛋白质潜在致敏性的评价,对于食品安全管理和保障有重要参考价值。本文通过对COMPARE数据库的全面介绍,旨在提高该数据库在我国的应用价值,推动过敏原分子生物信息学的研究以及食品安全的发展。 展开更多
关键词 过敏原 数据库 compare 生物信息学 序列比对 交叉反应 食品安全
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PCI compared with medical therapy in elderly patients with chronic symptomatic coronary artery disease
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作者 刘晓堃 傅向华 马宁 《介入放射学杂志》 CSCD 2003年第S1期150-151,共2页
Objective The aim of this study was to assess quality of results of elderly patients with coronary disease after medical or revascularisation therapy. Methods In this study, we enrolled 103 patients aged 75 years or o... Objective The aim of this study was to assess quality of results of elderly patients with coronary disease after medical or revascularisation therapy. Methods In this study, we enrolled 103 patients aged 75 years or older with chronic angina in which 47 patients were assigned coronary angiography and revascularisation and 56 patients with optimised medical therapy. The primary endpoint was quality of life after 6 months, as assessed by questionnaire and the presence of major adverse cardiac events (death, non fatal myocardial infarction, or hospital admission for acute coronary syndrome with or without the need for revascularisation). Results After 6 months follow up, angina severity decreased and measures of quality of life increased in both treatment groups( P <0.05 ); however, these improvements were significantly greater after revascularisation( P <0.01 ). Major adverse cardiac events occurred in 30 ( 53.6% ) of patients in the medical group and 9 ( 19.1% ) in the invasive group ( P <0.01 ).Conclusions Patients aged 75 years or older with angina benefit more from revascularisation than from optimised medical therapy in terms of symptom relief and quality of life. Therefore, these patients should be offered invasive assessment despite their high risk profile followed by revascularisation if feasible. 展开更多
关键词 PCI compared with medical therapy in elderly patients with chronic symptomatic coronary artery disease 河北医科大学第二医院 in with
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Study of brain morphology change in Alzheimer’s disease and amnestic mild cognitive impairment compared with normal controls 被引量:4
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作者 Huanqing Yang Hua Xu +10 位作者 Qingfeng Li Yan Jin Weixiong Jiang Jinghua Wang Yina Wu Wei Li Cece Yang Xia Li Shifu Xiao Feng Shi Tao Wang 《General Psychiatry》 CSCD 2019年第2期75-83,共9页
Background With an aggravated social ageing level, the number of patients with Alzheimer's disease (AD) is gradually increasing, and mild cognitive impairment (MCI) is considered to be an early form of Alzheimer&#... Background With an aggravated social ageing level, the number of patients with Alzheimer's disease (AD) is gradually increasing, and mild cognitive impairment (MCI) is considered to be an early form of Alzheimer's disease. How to distinguish diseases in the early stage for the purposes of early diagnosis and treatment is an important topic. Aims The purpose of our study was to investigate the differences in brain cortical thickness and surface area among elderly patients with AD, elderly patients with amnestic MCI (aMCI) and normal controls (NC). Methods 20 AD patients, 21 aMCIs and 25 NC were recruited in the study. FreeSurfer software was used to calculate cortical thickness and surface area among groups. Results The patients with AD had less cortical thickness both in the left and right hemisphere in 17 of the 36 brain regions examined than the patients with aMCI or NC. The patients with AD also had smaller cerebral surface area both in the left and right hemisphere in 3 of the 36 brain regions examined than the patients with aMCI or NC. Compared with the NC, the patients with aMCI only had slight atrophy in the inferior parietal lobe of the left hemisphere, and no significant difference was found. Conclusion AD, as well as aMCI (to a lesser extent), is associated with reduced cortical thickness and surface area in a few brain regions associated with cognitive impairment. These results suggest that cortical thickness and surface area could be used for early detection of AD. 展开更多
关键词 brain morphology CHANGE amnestic MILD COGNITIVE IMPAIRMENT compared aMCI NC
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HOW DO THE RATES OF HALOPHILIC ATTACKS COMPARE WITH THE RATES OF PROTOPHILIC ATTACKS? 被引量:2
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作者 Xing Ya LI Ming Hu TU Xi Kui JIANG 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第5期411-414,共4页
The measured relative rates of halophilic and protophilic attacks (k;/k;) indicate that the rates of halophilic attacks are comparable in magnitude to those of protophilic attacks (deprotonations).
关键词 In HOW DO THE RATES OF HALOPHILIC ATTACKS compare WITH THE RATES OF PROTOPHILIC ATTACKS LI
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Are women more susceptible to ischemic heart disease compared to men? A literature overview 被引量:1
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作者 Masoud Majidi Vahid Eslami +1 位作者 Pardis Ghorbani Mahnoosh Foroughi 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2021年第4期289-296,共8页
Ischemic heart disease(IHD) is known as the leading cause of death in both genders. Moreover, significant sex differences were found in cardiac structure, function, pathophysiology, presentation, treatment, and outcom... Ischemic heart disease(IHD) is known as the leading cause of death in both genders. Moreover, significant sex differences were found in cardiac structure, function, pathophysiology, presentation, treatment, and outcome of IHD. The presence of unique risk factors such as exposure to menarche and pregnancy, more anemia, hypertension, and autoimmune disorders in women have recently received attention. Ischemic symptoms are more indefinite and vague in women compared to men as well as a delay in diagnosis, treatment, and worse outcomes compared to men. Women usually receive less evidence-based treatment and intervention, with less concern on preventive health care. Clinical trials primarily recruit male patients and women are underrepresented. Without any correct diagnosis, treatment, and prevention, these problems are accumulated and continue up to older age. Accordingly, with the belief of longer life in women and the increased prevalence of IHD with aging, it will become an important public health problem and concern in the future. This narrative review aimed to provide an overview of some of the differences between the two genders in terms of IHD with paying more attention to practical points. 展开更多
关键词 IHD presentation A literature overview Are women more susceptible to ischemic heart disease compared to men
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compare with与 compare to
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作者 顾祖良 《语言教育》 1989年第6期55-56,共2页
compare with 与 compare to 在使用时,有其各自的不同点,也有共同点,现分述如下: 一、两者的不同点 1.一般说来compare with 作“把……和……比较”解:强调比较两者(同类、性质相同)的不同处,是衡量优劣的意思,列如: (1)If we compare... compare with 与 compare to 在使用时,有其各自的不同点,也有共同点,现分述如下: 一、两者的不同点 1.一般说来compare with 作“把……和……比较”解:强调比较两者(同类、性质相同)的不同处,是衡量优劣的意思,列如: (1)If we compare the China of today with the China of yesterday.we see what a change we have effected. 展开更多
关键词 YESTERDAY today compare to compare with PARIS SPOKEN TIGER SOLDIER
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Efficacy and safety of single-bolus tenecteplase compared with front-loaded alteplase in Chinese patients with acute myocardial infarction
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作者 Yuri B. Pride C. Michael Gibson 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2007年第3期142-143,共2页
  Following ST-segment elevation myocardial infarction(STEMI), early and complete epicardial reperfusion is associated with improved survival.……
关键词 STEMI Efficacy and safety of single-bolus tenecteplase compared with front-loaded alteplase in Chinese patients with acute myocardial infarction
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Popular Female Appellation: the Compare Study of "meinv" and "Xiao jiejie"
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作者 魏依 《海外英语》 2019年第12期111-112,共2页
Female appellations are changing with time,which has attracted many attention from scholars.In the last century,"xiaojie"was very popular.The word"xiaojie"was then replaced by"meinv"becau... Female appellations are changing with time,which has attracted many attention from scholars.In the last century,"xiaojie"was very popular.The word"xiaojie"was then replaced by"meinv"because of its negative images.Nowadays,with the development of network buzzwords,the word"Xiao jiejie"gradually come into the public eye.In this paper,I will compare these two female appellations"meinv"and"Xiao jiejie"from four aspects:the introduction of origin and population,the characteristics of word structures,target users,and the pragmatics effects. 展开更多
关键词 FEMALE APPELLATION "Xiao jiejie" "meinv" compare STUDY
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比较CR剂型和IR剂型卡维地洛对心力衰竭患者左室射血分数的影响:COMPARE试验
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作者 Greenberg B.H. Mehra M. +1 位作者 Teerlink J.R. 张媛 《世界核心医学期刊文摘(心脏病学分册)》 2007年第3期26-27,共2页
左室射血分数(LVEF)是评价心力衰竭患者心室功能的一个重要指标。现已证实IR剂型卡维地洛2次/d可改善缺血或非缺血性慢性心力衰竭患者的LVEF。
关键词 compare试验 CR IR 射血分数 心室功能 脑利钠肽 住院率 服药次数 左室重构 二维超声心
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How might this recession compare to 2008?
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作者 周越 《数理天地(高中版)》 2020年第5期49-49,共1页
According to the World Health Organization a vaccine for the Coronavirus maybe 18 months away,but the financial repercussions could last for five years.When it comes to the economy,2020 may feel a lot like a repeat of... According to the World Health Organization a vaccine for the Coronavirus maybe 18 months away,but the financial repercussions could last for five years.When it comes to the economy,2020 may feel a lot like a repeat of the 2008 Great Recession.Back then,deeply rooted problems in the banking system,coupled with an overheated real estate market,caused a major financial meltdown in the US. 展开更多
关键词 this RECESSION compare
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A Brief Analysis of the Differences and Defects of Subtitling Compared to Dubbing——Harry Potter and the Philosopher’s Stone
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作者 官文莉 《神州》 2014年第12期133-133,共1页
Compared to the dubbing, the version of subtitling has many defects, including the faults purely in language translation and the inaccuracy in the cultural images. As a media of cultural communication, the translator ... Compared to the dubbing, the version of subtitling has many defects, including the faults purely in language translation and the inaccuracy in the cultural images. As a media of cultural communication, the translator of the subtitling has to pay enough attention to the art of language, and has to take strategies centering on the audience, promoting the cultural communication and reducing the cultural differences. 展开更多
关键词 A BRIEF Analysis of the Differences and DEFECTS of SUBTITLING compared to Dubbing——Harry POTTER and the Philosopher’s STONE
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Growth efficiency,intestinal biology,and nutrient utilization and requirements of black soldier fly(Hermetia illucens)larvae compared to monogastric livestock species:a review 被引量:3
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作者 Mohammad M.Seyedalmoosavi Manfred Mielenz +2 位作者 Teun Veldkamp Gurbuz Das Cornelia C.Metges 《Journal of Animal Science and Biotechnology》 SCIE CAS CSCD 2022年第5期1262-1281,共20页
In recent years,interest in the larvae of black soldier fly(BSF)(Hermetia illucens)as a sustainable protein resource for livestock feed has increased considerably.However,knowledge on the nutritional and physiological... In recent years,interest in the larvae of black soldier fly(BSF)(Hermetia illucens)as a sustainable protein resource for livestock feed has increased considerably.However,knowledge on the nutritional and physiological aspects of this insect,especially compared to other conventional farmed animals is scarce.This review presents a critical comparison of data on the growth potential and efficiency of the BSF larvae(BSFL)compared to conventional monogastric livestock species.Advantages of BSFL over other monogastric livestock species includes their high growth rate and their ability to convert low-grade organic waste into high-quality protein and fat-rich biomass suitable for use in animal feed.Calculations using literature data suggest that BSFL are more efficient than broilers,pigs and fish in terms of conversion of substrate protein into body mass,but less efficient than broilers and fish in utilization of substrate gross energy to gain body mass.BSFL growth efficiency varies greatly depending on the nutrient quality of their dietary substrates.This might be associated with the function of their gastrointestinal tract,including the activity of digestive enzymes,the substrate particle characteristics,and their intestinal microbial community.The conceived advantage of BSFL having an environmental footprint better than conventional livestock is only true if BSFL is produced on low-grade organic waste and its protein would directly be used for human consumption.Therefore,their potential role as a new species to better close nutrient cycles in agro-ecological systems needs to be reconsidered,and we conclude that BSFL is a complementary livestock species efficiently utilizing organic waste that cannot be utilized by other livestock.In addition,we provide comparative insight into morpho-functional aspects of the gut,characterization of digestive enzymes,gut microbiota and fiber digestion.Finally,current knowledge on the nutritional utilization and requirements of BSFL in terms of macro-and micronutrients is reviewed and found to be rather limited.In addition,the research methods to determine nutritional requirements of conventional livestock are not applicable for BSFL.Thus,there is a great need for research on the nutrient requirements of BSFL. 展开更多
关键词 Black soldier fly Comparative growth performance Farm animals Insects as feed Intestinal function Nutrient cycles Nutrition and physiology
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Comparison of R and Excel in the Field of Data Analysis
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作者 Jue Wang 《Journal of Electronic Research and Application》 2024年第3期178-184,共7页
This research paper compares Excel and R language for data analysis and concludes that R language is more suitable for complex data analysis tasks.R language’s open-source nature makes it accessible to everyone,and i... This research paper compares Excel and R language for data analysis and concludes that R language is more suitable for complex data analysis tasks.R language’s open-source nature makes it accessible to everyone,and its powerful data management and analysis tools make it suitable for handling complex data analysis tasks.It is also highly customizable,allowing users to create custom functions and packages to meet their specific needs.Additionally,R language provides high reproducibility,making it easy to replicate and verify research results,and it has excellent collaboration capabilities,enabling multiple users to work on the same project simultaneously.These advantages make R language a more suitable choice for complex data analysis tasks,particularly in scientific research and business applications.The findings of this study will help people understand that R is not just a language that can handle more data than Excel and demonstrate that r is essential to the field of data analysis.At the same time,it will also help users and organizations make informed decisions regarding their data analysis needs and software preferences. 展开更多
关键词 EXCEL R language Data analysis Open source compare Data management Advantages Disadvantages FUNCTION
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Comparative transcriptome analysis between rhesus macaques(Macaca mulatta) and crab-eating macaques(M. fascicularis) 被引量:1
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作者 Yu-Xiang Mao Yamei Li +6 位作者 Zikun Yang Ning Xu Shilong Zhang Xuankai Wang Xiangyu Yang Qiang Sun Yafei Mao 《Zoological Research》 SCIE CSCD 2024年第2期299-310,共12页
Understanding gene expression variations between species is pivotal for deciphering the evolutionary diversity in phenotypes. Rhesus macaques(Macaca mulatta, MMU)and crab-eating macaques(M. fascicularis, MFA) serve as... Understanding gene expression variations between species is pivotal for deciphering the evolutionary diversity in phenotypes. Rhesus macaques(Macaca mulatta, MMU)and crab-eating macaques(M. fascicularis, MFA) serve as crucial nonhuman primate biomedical models with different phenotypes. To date, however, large-scale comparative transcriptome research between these two species has not yet been fully explored. Here, we conducted systematic comparisons utilizing newly sequenced RNA-seq data from84 samples(41 MFA samples and 43 MMU samples)encompassing 14 common tissues. Our findings revealed a small fraction of genes(3.7%) with differential expression between the two species, as well as 36.5% of genes with tissue-specific expression in both macaques. Comparison of gene expression between macaques and humans indicated that 22.6% of orthologous genes displayed differential expression in at least two tissues. Moreover,19.41% of genes that overlapped with macaque-specific structural variants showed differential expression between humans and macaques. Of these, the FAM220A gene exhibited elevated expression in humans compared to macaques due to lineage-specific duplication. In summary,this study presents a large-scale transcriptomic comparison between MMU and MFA and between macaques and humans. The discovery of gene expression variations not only enhances the biomedical utility of macaque models but also contributes to the wider field of primate genomics. 展开更多
关键词 Crab-eating macaques Rhesus macaques Comparative transcriptomics Biomedical models Nonhuman primates RNA-SEQ Duplicated genes
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超声辅助与纤维支气管镜辅助经皮扩张气管切开术的对比研究
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作者 郭龙飞 张冬泉 +1 位作者 王全红 李浩 《中国耳鼻咽喉头颈外科》 CSCD 2024年第1期63-65,共3页
目的探讨超声辅助经皮扩张气管切开术的应用价值。方法回顾性分析2020年12月~2022年12月在甘肃省人民医院重症医学科行经皮扩张气管切开术患者56例,均经口气管插管后呼吸机辅助呼吸,根据不同的辅助方式分为超声辅助(超声组)31例和纤维... 目的探讨超声辅助经皮扩张气管切开术的应用价值。方法回顾性分析2020年12月~2022年12月在甘肃省人民医院重症医学科行经皮扩张气管切开术患者56例,均经口气管插管后呼吸机辅助呼吸,根据不同的辅助方式分为超声辅助(超声组)31例和纤维支气管镜辅助(纤维支气管镜组)25例。结果与纤维支气管镜组比较,超声组术中氧合指数(PaO_(2)/FiO_(2))增高[(157.3±19.2)mmHg vs.(145.4±22.8)mmHg,t=2.117,P=0.039],分钟通气(MV)量增高[(7.3±0.8)L/min vs.(6.1±0.7)L/min,t=5.278,P<0.001],动脉血二氧化碳分压(PCO_(2))降低[(39.1±4.8)mmHgvs.(44.3±5.6)mmHg,t=-3.709,P<0.001],术后出血例数减少[0例vs.4例,χ^(2)=5.246,P=0.022]。结论超声组较纤维支气管镜组行经皮扩张气管切开术手术并发症少,安全性高。 展开更多
关键词 对比研究(Comparative Study) 超声检查(Ultrasonography) 经皮扩张气管切开术(percutaneous dilatational tracheotomy)
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低温等离子射频消融联合下鼻甲骨折外移术治疗阻塞性睡眠呼吸暂停低通气综合征的疗效观察
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作者 欧阳杰 王小琴 《中国耳鼻咽喉头颈外科》 CSCD 2024年第2期127-128,共2页
目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者接受低温等离子射频消融联合下鼻甲骨折外移术后睡眠及经鼻持续气道正压通气(nasal continuous positive airway pressure,nCPAP)治疗耐受性的改善情况。方法选择40例OSAHS合并双侧... 目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者接受低温等离子射频消融联合下鼻甲骨折外移术后睡眠及经鼻持续气道正压通气(nasal continuous positive airway pressure,nCPAP)治疗耐受性的改善情况。方法选择40例OSAHS合并双侧下鼻甲肥大的患者作为研究对象,均在局麻下接受下鼻甲低温等离子射频消融联合骨折外移术。术前及术后2周分别采用多导睡眠监测(PSG)、鼻阻力仪、autoCPAP呼吸机及视觉模拟量表(VAS)测定睡眠呼吸暂停低通气指数(AHI)、最低血氧饱和度(lowest oxygen saturation,LSaO_(2))、鼻气道阻力及nCPAP治疗耐受性。结果与术前比较,术后2周时患者AHI降低至(35.17±9.72)次/h,LSaO_(2)提高至(83.21±6.58)%,鼻气道阻力降低至(0.55±0.09)kPa·s/cm^(3),VAS评分升高至8.32±1.17,差异比较均有统计学意义(P均<0.05)。结论低温等离子射频消融联合下鼻甲骨折外移术能有效降低OSAHS患者的鼻阻力,提高nCPAP治疗的耐受性,改善OSAHS患者的睡眠情况。 展开更多
关键词 睡眠呼吸暂停 阻塞性(Sleep Apnea Obstructive) 外科手术(Surgical Procedures Operative) 对比研究(Comparative Study) 治疗结果(Treatment Outcome) 下鼻甲射频消融术(radiofrequency ablation of inferior turbinate)
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Rice-wheat comparative genomics:Gains and gaps
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作者 Akila Wijerathna-Yapa Ruchi Bishnoi +11 位作者 Buddhini Ranawaka Manu Maya Magar Hafeez Ur Rehman Swati G.Bharad Michal T.Lorenc Vinita Ramtekey Sasha Gohar Charu Lata Md.Harun-Or-Rashid Maryam Razzaq Muhammad Sajjad Bhoja R.Basnet 《The Crop Journal》 SCIE CSCD 2024年第3期656-669,共14页
Rice and wheat provide nearly 40%of human calorie and protein requirements.They share a common ancestor and belong to the Poaceae(grass)family.Characterizing their genetic homology is crucial for developing new cultiv... Rice and wheat provide nearly 40%of human calorie and protein requirements.They share a common ancestor and belong to the Poaceae(grass)family.Characterizing their genetic homology is crucial for developing new cultivars with enhanced traits.Several wheat genes and gene families have been characterized based on their rice orthologs.Rice–wheat orthology can identify genetic regions that regulate similar traits in both crops.Rice–wheat comparative genomics can identify candidate wheat genes in a genomic region identified by association or QTL mapping,deduce their putative functions and biochemical pathways,and develop molecular markers for marker-assisted breeding.A knowledge of gene homology facilitates the transfer between crops of genes or genomic regions associated with desirable traits by genetic engineering,gene editing,or wide crossing. 展开更多
关键词 Comparative genomics ORTHOLOGS GENES SYNTENY Genetic engineering Molecular breeding
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Alleviative effects of Bacillus coagulans strains on irritable bowel syndrome-unraveling strain specificity through physiological and genomic analysis
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作者 Jiang Cao Leilei Yu +4 位作者 Jianxin Zhao Hao Zhang Wei Chen Yuzheng Xue Qixiao Zhai 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第4期1845-1855,共11页
The high intraspecies heterogeneity of Baciillus coagulans leads to significant phenotypic differences among different strains.Thus,6 B.coagulans strains were tested in the present study using an irritable bowel syndr... The high intraspecies heterogeneity of Baciillus coagulans leads to significant phenotypic differences among different strains.Thus,6 B.coagulans strains were tested in the present study using an irritable bowel syndrome(IBS)animal model to determine whether the IBS-alleviating effects of B.coagulans strains are strain-specific.The results of this study showed that the ingestion of B.coagulans GBI-30,6086,and B.coagulans CCFM1041 significantly alleviated IBS symptoms in mice.In contrast,other B.coagulans strains showed no or limited alleviating effects on IBS symptoms.According to our experimental results,the two main common features of these strains were as follows:1)The resistance of vegetative cells to bile salts,and 2)ability to synthesize specific lipids and secondary metabolites.Screening strains based on these two indicators may greatly reduce costs and provide a basis for mining new functional B.coagulans strains.Our results also suggest that administration of B.coagulans could significantly regulate microbiota dysbiosis in animal models.Moreover,the close relationships between the gut microbiota,gut microbiota metabolites,and IBS were further confirmed in this study. 展开更多
关键词 Baciillus coagulans Irritable bowel syndrome Resistance to bile salts Comparative genomic analysis Gut microbiota
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The relationship between compartment models and their stochastic counterparts:A comparative study with examples of the COVID-19 epidemic modeling
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作者 Ziyu Zhao Yi Zhou +6 位作者 Jinxing Guan Yan Yan Jing Zhao Zhihang Peng Feng Chen Yang Zhao Fang Shao 《Journal of Biomedical Research》 CAS CSCD 2024年第2期175-188,I0016-I0018,共17页
Deterministic compartment models(CMs)and stochastic models,including stochastic CMs and agent-based models,are widely utilized in epidemic modeling.However,the relationship between CMs and their corresponding stochast... Deterministic compartment models(CMs)and stochastic models,including stochastic CMs and agent-based models,are widely utilized in epidemic modeling.However,the relationship between CMs and their corresponding stochastic models is not well understood.The present study aimed to address this gap by conducting a comparative study using the susceptible,exposed,infectious,and recovered(SEIR)model and its extended CMs from the coronavirus disease 2019 modeling literature.We demonstrated the equivalence of the numerical solution of CMs using the Euler scheme and their stochastic counterparts through theoretical analysis and simulations.Based on this equivalence,we proposed an efficient model calibration method that could replicate the exact solution of CMs in the corresponding stochastic models through parameter adjustment.The advancement in calibration techniques enhanced the accuracy of stochastic modeling in capturing the dynamics of epidemics.However,it should be noted that discrete-time stochastic models cannot perfectly reproduce the exact solution of continuous-time CMs.Additionally,we proposed a new stochastic compartment and agent mixed model as an alternative to agent-based models for large-scale population simulations with a limited number of agents.This model offered a balance between computational efficiency and accuracy.The results of this research contributed to the comparison and unification of deterministic CMs and stochastic models in epidemic modeling.Furthermore,the results had implications for the development of hybrid models that integrated the strengths of both frameworks.Overall,the present study has provided valuable epidemic modeling techniques and their practical applications for understanding and controlling the spread of infectious diseases. 展开更多
关键词 compartment models agent-based models compartment-agent mixed models comparative study COVID-19
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Comparative and Phylogenetic Analysis of the Complete Chloroplast Genomes of 19 Species in Rosaceae Family
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作者 Riwa Mahai Rongpeng Liu +3 位作者 Xiaolang Du Zejing Mu Xiaoyun Wang Jun Yuan 《Phyton-International Journal of Experimental Botany》 SCIE 2024年第6期1203-1219,共17页
Rosaceae represents a vast and complex group of species,with its classification being intricate and contentious.The taxonomic placement of many species within this family has been a subject of ongoing debate.The study ... Rosaceae represents a vast and complex group of species,with its classification being intricate and contentious.The taxonomic placement of many species within this family has been a subject of ongoing debate.The study utilized the Illumina platform to sequence 19 plant species from 10 genera in the Rosaceae.The cp genomes,vary-ing in size from 153,366 to 159,895 bp,followed the typical quadripartite organization consisting of a large single-copy(LSC)region(84,545 to 87,883 bp),a small single-copy(SSC)region(18,174 to 19,259 bp),and a pair of inverted repeat(IR)regions(25,310 to 26,396 bp).These genomes contained 132–138 annotated genes,including 87 to 93 protein-coding genes(PCGs),37 tRNA genes,and 8 rRNA genes using MISA software,52 to 121 simple sequence repeat(SSR)loci were identified.D.arbuscular contained the least of SSRs and did not have hexanotides,A.lineata contained the richest SSRs.Long terminal repeats(LTRs)were primarily composed of palindromic and forward repeat sequences,meanwhile,The richest LTRs were found in Argentina lineata.Except for Argentina lineata,Fragariastrum eriocarpum,and Prunus trichostoma,which varied in gene type and position on both sides of the boundary,the remaining species were found to be mostly conserved according to IR boundary analysis.The examination of the Ka/Ks ratio revealed that only the infA gene had a value greater than 1,indicating that this gene was primarily subjected to positive selection during evolution.Additionally,9 hotspots of variation were identified in the LSC and SSC regions.Phylogenetic analysis confirmed the scientific validity of the genus Prunus L.sensu lato(s.l.)within the Rosaceae family.The separation of the three genera Argentina Hill,Fragariastrum Heist.ex Fabr.and Dasiphora Raf.from Potentilla L.may be a more scientific classification.These results offer fresh perspectives on the taxonomy of the Rosaceae. 展开更多
关键词 ROSACEAE chloroplast genomes comparative genomes PHYLOGENY
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