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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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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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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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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:7
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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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Genetic mapping and QTL analysis for body weight in Jian carp (Cyprinus carpio var.Jian) compared with mirror carp (Cyprinus carpio L.) 被引量:3
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作者 顾颖 鲁翠云 +3 位作者 张晓峰 李超 俞菊华 孙效文 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2015年第3期636-649,共14页
We report the genetic linkage map of Jian carp(C yprinus carpio var. Jian). An F1 population comprising 94 Jian carp individuals was mapped using 254 microsatellite markers. The genetic map spanned 1 381.592 c M and c... We report the genetic linkage map of Jian carp(C yprinus carpio var. Jian). An F1 population comprising 94 Jian carp individuals was mapped using 254 microsatellite markers. The genetic map spanned 1 381.592 c M and comprised 44 linkage groups,with an average marker distance of 6.58 c M. We identified eight quantitative trait loci(QTLs) for body weight(BW) in seven linkage groups,explaining 12.6% to 17.3% of the phenotypic variance. Comparative mapping was performed between Jian carp and mirror carp( Cyprinus carpio L.),which both have 50 chromosomes. One hundred and ninety-eight Jian carp marker loci were found in common with the mirror carp map,with 186(93.94%) showing synteny. All 44 Jian carp linkage groups could be one-to-one aligned to the 44 mirror carp linkage groups,mostly sharing two or more common loci. Three QTLs for BW in Jian carp were conserved in mirror carp. QTL comparison suggested that the QTL confidence interval in mirror carp was more precise than the homologous interval in Jian carp,which was contained within the QTL interval in Jian carp. The syntenic relationship and consensus QTLs between the two varieties provide a foundation for genomic research and genetic breeding in common carp. 展开更多
关键词 Jian carp mirror carp body weight linkage map QTL comparative mapping
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A novel homozygous splicing mutation in AK7 associated with multiple morphological abnormalities of the sperm flagella
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作者 Thomas Greither Holger Herlyn 《Asian Journal of Andrology》 2025年第2期276-276,共1页
Medically assisted reproduction(MAR)techniques are highly dependent on the sperm quantity and quality.Low sperm concentrations can be bypassed at least to some point by the usage of more sophisticated MAR techniques l... Medically assisted reproduction(MAR)techniques are highly dependent on the sperm quantity and quality.Low sperm concentrations can be bypassed at least to some point by the usage of more sophisticated MAR techniques like intracytoplasmic sperm injection(ICSI).Compared to this,disruptions in established indicators of sperm quality like motility or morphology pose greater challenges for the therapy of couple infertility. 展开更多
关键词 intracytoplasmic sperm injection icsi compared AK medically assisted reproduction medically assisted reproduction mar techniques sperm flagella morphological abnormalities therapy couple infertility mar techniques
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Gossypium latifolium genome reveals the genetic basis of domestication of upland cotton from semi-wild races to cultivars 被引量:1
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作者 Chao Fu Nian Wang +7 位作者 Qingying Meng Zhiyong Xu Yu Le Xianlong Zhang Yangyang Wei Renhai Peng Chao Shen Zhongxu Lin 《The Crop Journal》 2025年第3期929-941,共13页
The genetic basis for Gossypium hirsutum race latifolium,the putative ancestor of cultivated upland cotton,emerging from the semi-wild races to be domesticated into cultivated upland cotton is unknown.Here,we reported... The genetic basis for Gossypium hirsutum race latifolium,the putative ancestor of cultivated upland cotton,emerging from the semi-wild races to be domesticated into cultivated upland cotton is unknown.Here,we reported a high-quality genome assembly of G.latifolium.Comparative genome analyses revealed substantial variations in both gene group composition and genomic sequences across 13 cotton genomes,including the expansion of photosynthesis-related gene groups in G.latifolium compared with other races and the pivotal contribution of structural variations(SVs)to G.hirsutum domestication.Based on the resequencing reads and constructed pan-genome of upland cotton,co-selection regions and SVs with significant frequency differences among different populations were identified.Genes located in these regions or affected by these variations may characterize the differences between G.latifolium and other races,and could be involved in maintenance of upland cotton domestication phenotypes.These findings may assist in mining genes for upland cotton improvement and improving the understanding of the genetic basis of upland cotton domestication. 展开更多
关键词 G.latifolium Genome assembly Comparative genome analysis Structural variations DOMESTICATION
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Design of a high-voltage radiation-tolerant driver with a novel comparator and drain-surrounding-source structure 被引量:1
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作者 Wei Huang Hong-Xia Liu Xing-Guo Gao 《Nuclear Science and Techniques》 2025年第7期34-43,共10页
This article introduces a novel 20 V radiation-hardened high-voltage metal-oxide-semiconductor field-effect transistor(MOSFET)driver with an optimized input circuit and a drain-surrounding-source(DSS)structure.The inp... This article introduces a novel 20 V radiation-hardened high-voltage metal-oxide-semiconductor field-effect transistor(MOSFET)driver with an optimized input circuit and a drain-surrounding-source(DSS)structure.The input circuit of a conventional inverter consists of a thick-gate-oxide n-type MOSFET(NMOS).These conventional drivers can tolerate a total ionizing dose(TID)of up to 100 krad(Si).In contrast,the proposed comparator input circuit uses both a thick-gate-oxide p-type MOSFET(PMOS)and thin-gate-oxide NMOS to offer a high input voltage and higher TID tolerance.Because the thick-gate-oxide PMOS and thin-gate-oxide NMOS collectively provide better TID tolerance than the thick-gate-oxide NMOS,the circuit exhibits enhanced TID tolerance of>300 krad(Si).Simulations and experimental date indicate that the DSS structure reduces the probability of unwanted parasitic bipolar junction transistor activation,yielding a better single-event effect tolerance of over 81.8 MeVcm^(2)mg^(-1).The innovative strategy proposed in this study involves circuit and layout design optimization,and does not require any specialized process flow.Hence,the proposed circuit can be manufactured using common commercial 0.35μm BCD processes. 展开更多
关键词 Total ionizing dose(TID) Single-event burnout(SEB) High-voltage driver Comparator input unit Drain-surrounding-source ring structure
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Proportional assist ventilation: methodology and therapeutics on COPD patients compared with pressure support ventilation
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作者 叶俏 王辰 +3 位作者 童朝晖 黄克武 姜超美 翁心植 《Chinese Medical Journal》 SCIE CAS CSCD 2002年第2期179-183,146-147,共5页
OBJECTIVE: To investigate the impact of proportional assist ventilation (PAV) on tolerance and breathlessness in ventilated chronic obstructive pulmonary disease (COPD), and to describe the patient-ventilator interact... OBJECTIVE: To investigate the impact of proportional assist ventilation (PAV) on tolerance and breathlessness in ventilated chronic obstructive pulmonary disease (COPD), and to describe the patient-ventilator interaction, hemodynamic state, breathing pattern and work of breath during PAV and pressure support ventilation (PSV). METHODS: Ten intubated COPD patients on weaning from mechanical ventilation were studied. Elastance and resistance were measured by both the inspiratory-hold technique during a brief period of volume control ventilation and runaway technique during PAV. Each assistance level of PAV (80%, 60% and 40%) and PSV was selected randomly. Patients' response, hemodynamics, blood gas and lung mechanics were monitored. RESULTS: Tidal volume and respiratory rate didn't change in a consistent manner as the level of assist was decreased (P > 0.05). With the level of assist increasing, peak inspiratory pressure was increasing significantly (P 展开更多
关键词 Aged Blood Gas Analysis Comparative Study FEMALE Hemodynamic Processes Humans MALE Positive-Pressure Respiration Pulmonary Disease Chronic Obstructive Pulmonary Gas Exchange Pulmonary Ventilation Respiration Artificial Respiratory Insufficiency
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脓肿期扁桃体切除治疗扁桃体周围脓肿的疗效分析
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作者 欧阳杰 王小琴 《中国耳鼻咽喉头颈外科》 2025年第2期129-131,共3页
目的探讨切开引流和脓肿期行扁桃体切除术治疗扁桃体周围脓肿的疗效差异。方法选择40例扁桃体周围脓肿患者作为研究对象,随机分为观察组和对照组,每组各20例。观察组在脓肿期全麻下行病变侧扁桃体切除术,对照组行扁桃体周围脓肿切开引... 目的探讨切开引流和脓肿期行扁桃体切除术治疗扁桃体周围脓肿的疗效差异。方法选择40例扁桃体周围脓肿患者作为研究对象,随机分为观察组和对照组,每组各20例。观察组在脓肿期全麻下行病变侧扁桃体切除术,对照组行扁桃体周围脓肿切开引流。比较两种方式下患者的疼痛视觉模拟量表(VAS)评分、感染指标(白细胞计数、C-反应蛋白、降钙素原)恢复正常时间、住院时间及2年内复发率的差异。结果观察组术后第1天咽痛明显减轻,(4.25±0.37)d咽痛完全缓解;对照组切开引流后第3天开始疼痛明显减轻,(7.23±1.09)d咽痛完全缓解,差异比较有统计学意义(t=4.27,P=0.006)。观察组白细胞计数和C-反应蛋白恢复至正常的时间为(5.43±1.25)d,对照组为(7.03±1.65)d,差异比较有统计学意义(t=3.17,P=0.038);观察组降钙素原恢复至正常的时间为(3.04±0.35)d,对照组为(4.32±0.67)d,差异比较有统计学意义(t=-5.36,P=0.014)。观察组患者住院时间小于对照组,随访2年对照组3例复发(15%,3/20),观察组均未见复发。结论与传统的切开引流相比,脓肿期行扁桃体切除术不仅能较快的控制感染、缓解患者的疼痛,还能缩短住院时间、防止复发。 展开更多
关键词 扁桃体切除术(Tonsillectomy) 治疗结果(Treatment Outcome) 对比研究(Comparative Study) 疼痛(Pain) 复发(Recidivism) 扁桃体周围脓肿(peritonsil abscess) 切开引流(incision and drainage)
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Genome analyses provide insights into Engelhardia’s adaptation to East Asia summer monsoon
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作者 Min Li Jing-Jing Wu +15 位作者 Ren-Ping Su Ou-Yan Fang Xiang Cai Pei-Han Huang Xiao-Yang Gao Xin-Xing Fu Xiao-Hui Ma Lin-Yue He Yi-Gang Song Guo-Xiong Hu Shi-Shun Zhou Yun-Hong Tan Yves Van de Peer Jie Li Sheng-Dan Wu Hong-Hu Meng 《Plant Diversity》 2025年第5期718-732,共15页
Genetic information has been instrumental in elucidating the relationship between the East Asian Summer Monsoon(EASM)and subtropical evergreen broad-leaved forests(EBLFs).However,how the genomic insights of EBLFs’spe... Genetic information has been instrumental in elucidating the relationship between the East Asian Summer Monsoon(EASM)and subtropical evergreen broad-leaved forests(EBLFs).However,how the genomic insights of EBLFs’species correspond to environmental shifts induced by the EASM remains limited.In this study,we investigated the adaptive mechanisms of evergreen Engelhardia species in response to the EASM through genome sequencing and comparative genomic analyses from the de novo genome assemblies of fiveclosely related Engelhardia taxa and one Rhoiptelea species.Our findingsrevealed that the divergence of evergreen trees from their sister deciduous species is closely associated with the onset and intensification of the EASM.This genomic transitionmayhave coincided with a significantexpansion of the terpene synthase(TPS)gene family in E.fenzelii,driven by four distinct modes of gene duplication.This expansion enhances the biosynthesis of terpene volatiles,providing a defensive mechanism against potential herbivory in EASM affected environments.We also identifieda shared whole-genome duplication(WGD)event across Engelhardia,along with substantial differences in transposable element(TE)composition and activity,which contributed to genome size variation between E.fenzelii and E.roxburghiana.In addition,demographic analyses revealed a continuous population decline over the past 10 million years,further exacerbated by recenthumandisturbance,underscoring the conservation urgency for these species.These results not only provide preliminary insights into the complex evolutionary dynamics within the Engelhardia genus from genomic insights(e.g.,the intricate relationships between genomic variations,environmental changes,and adaptive responses driven by significantclimatic events such as the EASM),but also provides valuable insights into the conservation significance of EBLFs. 展开更多
关键词 Engelhardia Comparative genomics Genome evolution EBLFs TPS EASM
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Tariffs reshape US market dynamics for women's synthetic trousers
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《China Textile》 2025年第2期28-29,共2页
The US market for women's synthetic trou-sers is characterised by intense competition,with Asian countries playing a dominant role in exports.This analysis delves into the market performance of leading exporters,a... The US market for women's synthetic trou-sers is characterised by intense competition,with Asian countries playing a dominant role in exports.This analysis delves into the market performance of leading exporters,assessing key indicators such as export values,revealed comparative advantage(RCA).unit value realisation(UVR),and the effect of tariff rates. 展开更多
关键词 womens synthetic trousers tariff rates US market dynamics Asian countries unit value realisation comparative advantage rca unit value realisation uvr revealed comparative advantage export performance
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The chromosome-scale genome of black wolfberry(Lycium ruthenicum)provides useful genomic resources for identifying genes related to anthocyanin biosynthesis and disease resistance
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作者 Gulbar Yisilam Enting Zheng +5 位作者 Chuanning Li Zhiyong Zhang Ying Su Zhenzhou Chu Pan Li Xinmin Tian 《Plant Diversity》 2025年第2期201-213,共13页
The black wolfberry(Lycium ruthenicum;2n=2x=24)is an important medicinal plant with ecological and economic value.Its fruits have numerous beneficial pharmacological activities,especially those of anthocyanins,polysac... The black wolfberry(Lycium ruthenicum;2n=2x=24)is an important medicinal plant with ecological and economic value.Its fruits have numerous beneficial pharmacological activities,especially those of anthocyanins,polysaccharides,and alkaloids,and have high nutritional value.However,the lack of available genomic resources for this species has hindered research on its medicinal and evolutionary mechanisms.In this study,we developed the telomere-to-telomere(T2T)nearly gapless genome of L.ruthenicum(2.26 Gb)by integrating PacBio HiFi,Nanopore Ultra-Long,and Hi-C technologies.The assembled genome comprised 12 chromosomes with 37,149 protein-coding genes functionally annotated.Approximately 80%of the repetitive sequences were identified,of which long terminal repeats(LTRs)were the most abundant,accounting for 73.01%.The abundance of LTRs might be the main reason for the larger genome of this species compared to that of other Lycium species.The species-specific genes of L.ruthenicum were related to defense mechanisms,salt tolerance,drought resistance,and oxidative stress,further demonstrating their superior adaptability to arid environments.Based on the assembled genome and fruit transcriptome data,we further constructed an anthocyanin biosynthesis pathway and identified 19 candidate structural genes and seven transcription factors that regulate anthocyanin biosynthesis in the fruit developmental stage of L.ruthenicum,most of which were highly expressed at a later stage in fruit development.Furthermore,154 potential disease resistance-related nucleotidebinding genes have been identified in the L.ruthenicum genome.The whole-genome and proximal,dispersed,and tandem duplication genes in the L.ruthenicum genome enriched the number of genes involved in anthocyanin synthesis and resistance-related pathways.These results provide an important genetic basis for understanding genome evolution and biosynthesis of pharmacologically active components in the Lycium genus. 展开更多
关键词 Lycium ruthenicum GENOME Anthocyanin biosynthesis Gene duplication Comparative genomics
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Transcriptome Analysis of Derris fordii and Derris elliptica to Identify Potential Genes Involved in Rotenoid Biosynthesis
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作者 Yanlin Pan Yibin Zhang +2 位作者 Xingui Wang Hongbo Qin Lunfa Guo 《Phyton-International Journal of Experimental Botany》 2025年第1期123-136,共14页
Derris fordii and Derris elliptica belong to the Derris genus of the Fabaceae family, distinguished by their high isoflavonoid content, particularly rotenoids, which hold significance in pharmaceuticals and agricultur... Derris fordii and Derris elliptica belong to the Derris genus of the Fabaceae family, distinguished by their high isoflavonoid content, particularly rotenoids, which hold significance in pharmaceuticals and agriculture. Rotenone, as a prominent rotenoid, has a longstanding history of use in pesticides, veterinary applications, medicine, and medical research. The accumulation of rotenoids within Derris plants adheres to species-specific and tissue-specific patterns and is also influenced by environmental factors. Current research predominantly addresses extraction techniques, pharmacological applications, and pesticide formulations, whereas investigations into the biosynthesis pathway and regulatory mechanism of rotenoids remain relatively scarce. In this study, we observed notable differences in rotenone content across the roots, stems, and leaves of D. fordii, as well as within the roots of D. elliptica. Utilizing RNA sequencing (RNA-seq), we analyzed the transcriptomes and expression profiles of unigenes from these four tissues, identifying a total of 121,576 unigenes. Differentially expressed genes (DEGs) across four comparison groups demonstrated significant enrichment in the phenylpropanoid and flavonoid biosynthesis pathways. Key unigenes implicated in the rotenoid biosynthesis pathway were identified, with PAL, C4H, CHS, CHI, IFS, and HI4OMT playing critical roles in D. fordii, while IFS and HI4OMT were determined to be essential for rotenoid biosynthesis in D. elliptica. These findings enhance our understanding of the biosynthesis mechanism of rotenoids in Derris species. The unigenes identified in this study represent promising candidates for future investigations aimed at validating their roles in rotenoid biosynthesis. 展开更多
关键词 Derris fordii Derris elliptica RNA-SEQ rotenoid comparative transcriptomic analysis
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PlastidHub:An integrated analysis platform for plastid phylogenomics and comparative genomics
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作者 Na-Na Zhang Gregory W.Stull +3 位作者 Xue-Jie Zhang Shou-Jin Fan Ting-Shuang Yi Xiao-Jian Qu 《Plant Diversity》 2025年第4期544-560,共17页
The plastid genome(plastome)represents an indispensable molecular resource for studying plant phylogeny and evolution.Although plastome size is much smaller than that of nuclear genomes,accurately and efficientlyannot... The plastid genome(plastome)represents an indispensable molecular resource for studying plant phylogeny and evolution.Although plastome size is much smaller than that of nuclear genomes,accurately and efficientlyannotating and utilizing plastome sequences remain challenging.Therefore,a streamlined phylogenomic pipeline spanning plastome annotation,phylogenetic reconstruction and comparative genomics would greatly facilitate research utilizing this important organellar genome.Here,we develop PlastidHub,a novel web application employing innovative tools to analyze plastome sequences.In comparison with existing tools,key novel functionalities in PlastidHub include:(1)standardization of quadripartite structure;(2)improvement of annotation flexibility and consistency;(3)quantitative assessment of annotation completeness;(4)diverse extraction modes for canonical and specialized sequences;(5)intelligent screening of molecular markers for biodiversity studies;(6)genelevel visual comparison of structural variations and annotation completeness.PlastidHub features cloud-based web applications that do not require users to install,update,or maintain tools;detailed help documents including user guides,test examples,a static pop-up prompt box,and dynamic pop-up warning prompts when entering unreasonable parameter values;batch processing capabilities for all tools;intermediate results for secondary use;and easy-to-operate task flows between fileupload and download.A key feature of PlastidHub is its interrelated task-based user interface design.Give that PlastidHub is easy to use without specialized computational skills or resources,this new platform should be widely used among botanists and evolutionary biologists,improving and expediting research employing the plastome.PlastidHub is available at https://www.plastidhub.cn. 展开更多
关键词 ANNOTATION Comparative genomics Plastid phylogenomics Sequence processing VISUALIZATION
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Comparative transcriptome analysis revealed host defense responses in endosymbiotic gill of Bathymodiolus mussels inhabiting cold seeps and hydrothermal vents
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作者 Genmei LIN Boxian WEN +5 位作者 Junrou HUANG Xuanguang LIANG Cuiling XU Ye CHEN Nengyou WU Jianguo LU 《Journal of Oceanology and Limnology》 2025年第3期878-891,共14页
Bathymodiolus mussels distribute in both deep-sea cold seep and hydrothermal vent environments,whose endosymbiotic gill tissue is a prominent character for the adaptation of extreme habitats.However,few studies explor... Bathymodiolus mussels distribute in both deep-sea cold seep and hydrothermal vent environments,whose endosymbiotic gill tissue is a prominent character for the adaptation of extreme habitats.However,few studies explored the adaptation mechanisms through comparative transcriptome sequencing and analysis of different tissues between seep mussels and vent mussels.We performed the comparative transcriptome sequencing and analysis for three tissue types(gill,mantle,and adductor muscle)of Bathymodiolus mussels collected from a cold seeping site Station S 11 and the 50-km away hydrothermal field Minami-Ensei Knoll in the Okinawa Trough.Results show that gene expression patterns had distinct tissue specificity.Compared with the non-endosymbiotic tissues(mantle and adductor muscle),the significantly strengthened gene functions in endosymbiotic gill included microbial recognition(fibrinogen C domain-containing protein 1-B-like(fibcd),fibrinogen-related protein 8(frp),peptidoglycan recognition proteins(pgrp),and C-type lectin(clec)),cell apoptosis and immunity(interferon regulatory factor 1/2-like 1(ir f),cathepsin D(ctsd),caspase 2(casp 2)),and antioxidant capacity(copper/zinc superoxide dismutase(czsod),glutathione peroxidase(gpx),selenoprotein(sel)),in both seep and vent individuals.Consistent with metal accumulation,high expression levels of genes related to heavy metal detoxification(cytochrome P 450(cyp),ferritin-like(ftl),metallothionein(mt),glutathione S-transferase(gst))were also observed in gill.Moreover,to adapt to high hydrostatic pressure in the deep sea,the Kyoto Encyclopedia of Genes and Genomes(KEGG)pathways associated with cellular community were significantly enriched in all three tissues,suggesting the regulation of cell structure and cell adhesion at transcriptional level.This study obtained gene expression profiles of deep-sea mussels subsisting at cold seep and hydrothermal vent sites,which could lay foundations for comprehensive investigations of molecular basis in adaptation of deep-sea mussels to the two extreme ecosystems. 展开更多
关键词 Bathymodiolus mussel adaptation cold seep hydrothermal vent comparative transcriptome
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Integrated transcriptome analysis of mRNA and miRNA revealed defensive strategies in the large yellow croaker Larimichthys crocea against Pseudomonas plecoglossicida infection
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作者 Guangming Shao Yameng Zhang +7 位作者 Zhaolong Zhou Zexu Zhao Fengjiao He Jiawen Ji Xiaomei Tu Yibo Shen Jingqun Ao Xinhua Chen 《Acta Oceanologica Sinica》 2025年第2期37-51,共15页
Large yellow croaker(Larimichthys crocea)is an economically important fish,with the annual production ranking second among maricultured fish in China.Outbreaks of visceral white nodules disease caused by Pseudomonas p... Large yellow croaker(Larimichthys crocea)is an economically important fish,with the annual production ranking second among maricultured fish in China.Outbreaks of visceral white nodules disease caused by Pseudomonas plecoglossicida have led to substantial economic losses for the L.crocea aquaculture industry.However,L.crocea defense strategies against P.plecoglossicida infection,especially the role of microRNAs(miRNAs)in the defense against P.plecoglossicida,are poorly understood.Here,we analyzed changes in the mRNA and miRNA expression profiles in the spleen of L.crocea at 96 h post-infection and explored its defensive strategies.Principal component analysis(PCA)showed that P.plecoglossicida infection brought about a profound remodeling of both the miRNA and mRNA profiles.Enrichment analysis showed that the inflammatory response(IL-17 signaling pathway,chemokines and chemokine receptor pathway),ATP synthesis(TCA cycle and oxidative phosphorylation),apoptosis and necroptosis(TNF signaling pathway),and proteolysis(proteasome pathway)were enriched and upregulated by P.plecoglossicida.Thus,P.plecoglossicida infection activated the inflammatory response,stimulated ATP synthesis,and accelerated apoptosis and necroptosis,and promoted proteasome-mediated protein degradation.Additionally,integrated analysis identified 568 miRNA-mRNA pairs.KEGG enrichment analysis of the miRNA targets showed that the enriched pathways included cytokine-cytokine receptor interaction,the chemokine signaling pathway,the C-type lectin receptor signaling pathway,and apoptosis.Integrated analysis identified 14 miRNAs which targeted 44 immune-related genes.Altogether,our results revealed not only the role of the inflammatory response,energy metabolism,apoptosis and necroptosis,and the proteasome pathway in L.crocea defense against P.plecoglossicida infection,but also the regulatory networks of miRNAs associated with host defense against P.plecoglossicida. 展开更多
关键词 Larimichthys crocea Pseudomonas plecoglossicida MICRORNAS comparative transcriptomics
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