|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Atorvastatin protects against cerebral ischemia/ reperfusion injury through anti-inflammatory and antioxidant effects显示文摘In addition to its lipid-lowering effect, atorvastatin exerts anti-inflammatory and antioxidant effects as well. In this study, we hypothesized that atorvastatin could protect against cerebral ischemia/reperfusion injury. The middle cerebral artery ischemia/reperfusion model was established, and atorvastatin, 6.5 mg/kg, was administered by gavage. We found that, after cerebral ischemia/ reperfusion injury, levels of the inflammation-related factors E-selectin and myeloperoxidase were upregulated, the oxidative stress-related marker malondialdehyde was increased, and superoxide dismutase activity was decreased in the ischemic cerebral cortex. Atorvastatin pretreatment significantly inhibited these changes. Our findings indicate that atorvastatin protects against cerebral ischemia/reperfusion injury through anti-inflammatory and antioxidant effects. | Qiuyun Tu Hui Cao Wei Zhong Binrong Ding Xiangqi Tang | 2014 | Neural Regeneration Research2014,9,3: | 29 |
| 2 | Nat Microbiol:已结首次构建出小鼠肠道微生物组数据库显示文摘小鼠模型通常被广泛用于药理学和医学研究。我们都知道小鼠肠道中的微生物群落通常会对研究结果产生明显的影响,然而目前研究者们并没有获取到关于小鼠肠道中栖息细菌群落的详细信息。近日刊登在国际杂志Nature Microbiology上的一篇研究报告中。德国慕尼黑理工大学的研究者通过研究首次收集到了小鼠肠道中的多种细菌群落。同时研究者还对其进行了分裂、特性分析。最后得到了100种细菌,其中还包括15种迄今为止未知的细菌群落。 | Lu, Qiulun Yao, Yufeng Hu, Zhenkun Hu, Changqing Song, Qixue Ye, Jian Xu, Chengqi Wang, Annabel Z. Chen, Qiuyun Wang, Qing Kenneth | 2016 | 现代生物医学进展2016,16,32: | 13 |
| 3 | Factors Associated with Thrombolysis Outcome in Ischemic Stroke Patients with Atrial Fibrillation显示文摘The outcome of early intravenous thrombolysis for ischemic stroke in patients with atrial fibrillation(AF)is worse than that without thrombosis. How to increase the efficacy of intravenous thrombolysis for AF-related ischemic stroke remains largely unknown. In this study, we investigated factors that influence the effect of intravenous thrombolysis in these patients. Our results showed that thrombolysis was independently associated with a favorable outcome(P \ 0.001) and did not influence the mortality of AF-related ischemic stroke, although it increased the risk of hemorrhage within 24 h after treatment. Risk factors for a poor outcome at admission were:heart failure(P = 0.045); high systolic pressure(P = 0.039); high blood glucose(P = 0.030); and a high National Institutes of Health Stroke Scale(NIHSS) score(P \ 0.001). Moreover, high systolic pressure at admission(P = 0.007), high blood glucose(P = 0.027), and a high NIHSS score(P \ 0.001) were independent risk factors for mortality at 3 months. Besides thrombolysis, a high NIHSS score(P = 0.006) and warfarin taken within 48 h before stroke onset(P = 0.032) were also independent risk factors for symptomatic hemorrhage within 24 h after treatment. Ischemic stroke patients with AF benefited from intravenous thrombolysis with recombinant tissue plasminogen activator within 4.5 h after stroke. | Qiuyun Zhao Xiaobo Li Wanli Dong Min Ye Yongjun Cao Meijuan Zhang Qiantao Cheng Junshan Zhou Guofang Chen Ming Yu Shanshan Hong Xiue Wei Bei Wang Guiyun Cui Peng Zhang Hong Ding Rongzhen Xu Yan Chen Yun Xu | 2016 | Neuroscience Bulletin2016,32,2: | 13 |
| 4 | Solid Acid Used as Highly Efficient Catalyst for Esterification of Free Fatty Acids with Alcohols显示文摘Anovel solid acid catalyst, which was prepared from sodium alginate (SA) and metal chlorides and characterized with XRD and FT-IR spectrometry, was used for the preparation of biodiesel via esterification reaction. The study results showed that the aluminum-alginate complex prepared in a cheap and easy way exhibited high catalytic activity, and a 92.6% conversion of methyl oleate was obtained in the presence of 4m% of catalyst dosage upon refluxing for 3h of methanol and acid mixed in a molar ratio of 10:1. It should be noted that the catalyst can be applied to the esterification reaction of fatty acids with various carbon chain length on methanol or different short chain alcohols, indicating that the catalyst is suitable for the preparation of biodiesel from waste oils with a high acid value. | Zhang Qiuyun Li Hu Qin Wenting Liu Xiaofang Zhang Yuping Xue Wei Yang Song | 2013 | China Petroleum Processing & Petrochemical Technology2013,15,1: | 6 |
| 5 | cDNA cloning of conotoxins with framework XII from several Conus species显示文摘在我们为用信号肽顺序克隆新奇 I2 总科 conotoxins 的努力,我们从 Conus litteratus 识别了新奇 conotoxin Lt12.4。这基因有框架 XII (从半胱氨酸模式 I2 总科 conotoxin 不同的 -C-C-C-C-CC-C-C-),(-C-C-CC-CC-C-C-) 。随后,我们由 5 赛跑发现了 Lt12.4 的信号肽顺序。用这个新序列,我们从四 Conus 种与这个半胱氨酸模式识别了另一五新奇 conotoxins (Conus eburneus, Conus imperialis, Conus marmoreus,和 C。litteratus ) 。这些新奇 conotoxins 作为报导 Gla-TxX 和 Gla-MII 有一样的半胱氨酸模式,并且可以包含 Gla 残余。而且,他们有成熟的肽定序的高度保存的信号肽和 hypervariable,并且广泛地在 Conus 种类存在。因此,它能被定义为 E-conotoxins 的一个新总科。 | Zhuguo Liu Zheng Yu Na Liu Chongjia Zhao Jie Hu Qiuyun Dai | 2010 | Acta Biochimica et Biophysica Sinica2010,42,9: | 4 |
| 6 | Effects of imperfect experimental conditions on stress waves in SHPB experiments显示文摘Experimental and numerical simulations were undertaken to estimate the effects of imperfect conditions on stress waves in split Hopkinson pressure bar(SHPB)experiments. The photonic Doppler velocimetry(PDV) measurement results show that the rise and fall times of an incident wave increases with an increasing inclination angle;also, the fluctuations of the incident wave disappear gradually with the increase of inclination angle. The following characteristics for various defects in the SHPB were obtained by numerical simulation:(1) the influence of a curved bar was negligible;(2) misalignment modestly affects the fluctuation characteristics, and bending waves were generated at this condition;(3) inclination and indentation of the impact endsurface had a great impact on the incident waves, and both of them increase the rise time of the incident wave by increasing the degree of defects. In view of the results, misalignment,inclination, and indentation in SHPB experiments should be minimized. | Xianqian Wu Qiuyun Yin Yanpeng Wei Chenguang Huang | 2015 | Acta Mechanica Sinica2015,31,6: | 4 |
| 7 | ZrOCl_2·8H_2O: An Efficient and Cheap Catalyst for Esterification of Free Fatty Acids to Methyl Esters显示文摘The esterification of lauric acid with methanol could be efficiently catalyzed by ZrOCl2·8H2O, and this reaction was studied to develop a green method for biodiesel production. The influencing factors, such as amount of catalyst, reaction time and molar ratio of acid to methanol, were investigated. The results indicated that the ZrOCl2·8H2O catalyst showed high catalytic activity, and gave a 97.0% methyl laurate conversion rate under the following optimized conditions, viz.: a lauric acid/methanol molar ratio of 1:10, a catalyst dosage of 4%, and a reaction duration of 2 h at methanol refluxing temperature. The catalyst could be easily recovered while its activity could be well retained after three cycles. The ZrOCl2·8H2O catalyst also exhibited excellent catalytic activity for the esterification of different free long-chain fatty acids(including nonedible oils with high acid value) with different short carbon chain alcohols. Therefore, the ZrOCl2·8H2O catalyst has good potential for the synthesis of biodiesel from low-cost feedstocks such as waste vegetable oils and non-edible oils. | Cai Jie Zhang Qiuyun Huang Congmin Zhou Kaizhi Ma Peihua | 2014 | China Petroleum Processing & Petrochemical Technology2014,16,1: | 4 |
| 8 | Mn–Co–Ni–O thin films prepared by sputtering with alloy target显示文摘The thin film of heat-sensitive materials has been widely concerned with the current trend of miniaturization and integration of sensors.In this work,Mn1.56 Co0.96 Ni0.48 O4(MCNO)thin films were prepared on Si O2/Si substrates by sputtering with Mn–Co–Ni alloy target and then annealing in air at different temperatures(650–900℃).The X-ray diffraction(XRD)and field emission scanning electron microscopy(FE-SEM)analysis indicated that the main crystalline phase of MCNO thin films was spinel crystal structure;the surface of the thin films was very dense and uniform.The electrical properties of the thin films were studied in the temperature range of–5–50℃.The MCNO thin film with a low room temperature resistance R25 of 71.1 kΩand a high thermosensitive constant B value of 3305 K was obtained at 750℃.X-ray photoelectron spectroscopy(XPS)analysis showed that the concentration of Mn3+and Mn4+cations in MCNO thin films is the highest when annealing temperature is 750℃.The complex impedance analysis revealed internal conduction mechanism of the MCNO thin film and the resistance of the thin film was dominated by grain boundary resistance. | Ruifeng LI Qiuyun FU Xiaohua ZOU Zhiping ZHENG Wei LUO Liang YAN | 2020 | Journal of Advanced Ceramics2020,9,1: | 3 |
| 9 | Exceptional co-catalyst free photocatalytic activities of B and Fe co-doped SrTiO3 for CO2 conversion and H2 evolution显示文摘CO2 should be converted into chemical-fuels,and to reduce H2O to H2 over SrTiO3 (STO) owing to its negative conduction band position vs.NHE.Herein a novel B and Fe co-doped SrTiO3 (B,F-STO) photocatalyst was successfully fabricated via a single-step sol-hydrothermal process.Various experiments confirmed that B and Fe are effectively doped into the STO matrix.Boron substituted oxygen anions,while Fe substituted Ti cations.UV-visible diffuse reflectance spectra (UV-vis DRS) and valence-band X-ray photoelectron spectroscopy (XPS) spectra confirmed that the band gap of STO significantly reduced from 3.4 to 1.9 eV upon co-doping with B and Fe.Hence,the B,F-STO photocatalyst exhibits more absorption (λ ≤ 650 nm) compared to pure STO (λ ≤ 360 nm).Further,from photoluminescence spectra,fluorescence spectra,and photoelectrochemical measurements,charge separation in STO is considerably enhanced by co-doping B and Fe.This resulted in the improved UV-vis light catalytic activities for CO2 conversion to CH4 and CO and H2O splitting to evolve H2.The amounts of CH4 and CO produced over B,F-STO are ~ 17.2 and 21 μmol,respectively,about 5-fold enhanced compared to that of STO (~ 3.4 μmol CH4 and 5.2 μmol CO),and the calculated quantum efficiency at λ =420 run is ~ 2.16%.Similarly,the amount of H2 produced over B,F-STO is ~ 61 μmol,about 6.7-fold enhanced compared to that over STO (9 μmol),and the calculated quantum efficiency at λ =420 nm is ~ 2.12%.This work provides feasible routes to fabricate highly efficient SrTiO3-based nanophotocatalysts for solar-fuel production. | Muhammad Humayun Lei Xu Ling Zhou Zhiping Zheng Qiuyun Fu Wei Luo | 2018 | Nano Research2018,11,12: | 3 |
| 10 | Wet Desulfurization of High-Sulfur Petroleum Coke Improved via Pre-calcination,H_(2)O_(2) Treatment,and Ultrasound显示文摘This work reports an improved method for the wet desulfurization of high-sulfur petroleum coke(petcoke)powder based on the combination of pre-calcination,H_(2)O_(2),and ultrasound.The results demonstrated that over 45%of the sulfur atoms were efficiently removed from Tianjin coke and Qilu coke(particle size<0.1 mm)by pre-calcination at 800℃ for 6 h followed by desulfurization with HNO3(8 mol/L)and H_(2)O_(2)(2 mol/L)solution at a reaction temperature of 60℃,a reaction time of 6 h,a liquid-to-solid ratio of 10 mL/g,and a 40 kHz ultrasonic power of 400 W.In addition,the specific surface area of the petcoke particles increased from 0.7 to 301.49 m^(2)/g.After desulfurization,the pore size distribution of the petcoke particles was more concentrated on micropores compared with the samples prior to petcoke treatment.Reactive force field molecular dynamics simulation results indicated that HNO_(3) continuously oxidized the carbon atoms adjacent to sulfur atoms in the petcoke macromolecules and promoted sulfur removal from petcoke via the cleavage of C-S bonds.The sulfur transformation mechanism can be summarized as follows:thiophene sulfur→branched chain carbon sulfur→CO_(2)S→C_(2)O_(2)S→C_(2)O_(3)NS→C_(2)O_(4)S→CO_(2)S. | Wang Gang Mao Qiuyun Liu Wei Yu Zhou Zhong Qifan | 2022 | China Petroleum Processing & Petrochemical Technology2022,24,2: | 3 |
| 11 | Role of Retinal Nerve Fiber Layer Thickness and Optic Disk Measurement by OCT onEarly Diagnosis of Glaucoma显示文摘Purpose:.Glaucoma is an eye disease that can lead to irreversible optic nerve damage and cause blindness. Optical coherence tomography.(OCT) allows an early diagnosis of glaucoma by the measurements of the retinal nerve fiber and optic disc parameters.A retrospective study was designed to analyze the effects of the measurement of the retinal nerve fiber layer(RNFL) thickness and the optic disc tomography by spectraldomain OCT on the early diagnosis of suspected glaucoma and primary open angle glaucoma(POAG).Methods:.This was a clinical case-control study. The RNFL thickness around the optic disc and optic disk tomographic parameters of the control(n=51, 98 eyes), suspected glaucoma(n=81,.146 eyes), and POAG groups(n=55, 106 eyes) were measured by OCT. The parameters included superior, inferior, nasal and temporal mean RNFL thickness,.disc area(DA), cup area(CA), rim area(RA), disc volume(DV),cup volume(CV), rim volume(RV), cup / disc area ratio(CA / DA), rim / disc area ratio(RA / DA), cup / disc volume ratio(CV / DV) and rim / disc volume ratio(RV / DV).Results: Superior, nasal, and mean RNFL parameters, DA,CA,RA, DV, CV, CA / DA, RA / DA, CV / DV and RV / DV significantly differed among three groups by single-factorial ANOVA. Inferior and temporal RNFL thickness significantly differed between the control and POAG groups. No significant difference was observed in RV among three groups. In the POAG group,.the maximum area under the ROC curve(AROC) of mean RNFL thickness was 0.845. The maximum AROC of optic disk parameters was RA / DA(0.998), followed by CA / DA(0.997). The AROC of CA, RA, CV, and DV were all > 0.900.Conclusion:.OCT may serve as a useful diagnostic modality in distinguishing suspected glaucoma from POAG. | Zanmei Hua Qiuyun Fang Xiangyin Sha Ruiming Yang Zuopeng Hong | 2015 | Eye Science2015,30,1: | 3 |
| 12 | Efficacy of decoction from Jieduan Niwan formula on rat model of acute-on-chronic liver failure induced by porcine serum显示文摘OBJECTIVE:To dynamically observe the efficacy of Jieduan Niwan formula(JDNW)on a rat model of acute-on-chronic liver failure(ACLF).METHODS:Seventy Wistar rats were divided into control group(6 rats),model group(22 rats),JDNW group(21 rats),and SP600125 group(21 rats).13 weeks'porcine serum injection followed with D-galactosamine and lipopolysaccharide joint acute attack was used to establish ACLF model.Rats in JDNW group were orally given JDNW formula for 3 days before acute attack;rats in SP600125 group were injected with SP60012530 min ahead of acute attack.Rats were sacrificed respectively at 4,8 and 12 h after model established.Alanine aminotransferase(ALT),aspartate aminotransferase(AST),total bilirubin(TBIL),Creatinine(CR),blood urea nitrogen(BUN),prothrombin activity(PTA)were examined by biochemical process,Tumor necrosis factor-alpha(TNF-α),interleukin-1β(IL-1β),interleukin-6(IL-6),interleukin-10(IL-10),transformed growth factor-beta 1(TGF-β1),High mobility group box-1(HMGB-1),CD3,CD4,CD8 were analyzed by enzyme-linked immunosorbent assay,apoptotic index(AI)was detected by terminal-deoxynucleoitidyl transferase mediated nick end labeling staining,expression of Bad,phosphorylated Jun N-terminal kinases(p-JNK)and Cytochrome C(Cyt C)were detected by immunohistochemical analysis,Bax and Bid were detected by Western blot analysis.RESULTS:In model group,the levels of ALT,AST,TBIL,CR,BUN,IL-1β,IL-6,IL-10,TGF-β1 and HMGB-1 remarkably increased and PTA decreased compared with control group(P<0.05),as time goes on,ALT,AST,TBIL,CR,BUN,continued to grow,while IL-1β,IL-6,IL-10,HMGB-1,TGF-β1 and PTA gradually decreased;massive necrosis could be seen;the levels of TNF-α,CD3,CD4,CD8,AI,p-JNK,Bax,Bad,Bid and Cyt C increased at 4 h and peaked at 8 h,but decreased at 12 h(P<0.05).JDNW group,by contrast,showed less pathological injury,increased PTA level,and reduced ALT,AST,TBIL,TNF-α,IL-1β,IL-6,IL-10,TGF-β1,HMGB-1,CD3,CD4 and CD8 levels(P<0.05),moreover,the AI and expression of p-JNK,Bax,Bad,Bid and Cyt C were lower than model group at 4 and 8 h but were higher at 12 h(P<0.05).Similar results were observed in SP600125 group.CONCLUSION:An ACLF rat model with low mortality can be established by porcine serum joint with D-galactosamine+lipopolysaccharide induction;JDNW decoction can effectively suppress the inflammatory reaction,improve the immune system,and protect the liver of ACLF rats,the mechanism might involve the inhibition of the JNK-induced mitochondrial apoptotic pathway. | Li Jinxia Zhang Qiuyun Gao Lianyin Du Yuqiong Chen Yu | 2020 | Journal of Traditional Chinese Medicine2020,40,4: | 3 |
| 13 | Phenotypic characterization of patients with activated PI3Kδ syndrome 1 presenting with features of systemic lupus erythematosus显示文摘Activated phosphoinositide 3-kinase d syndrome 1(APDS1)is a primary immunode-ficiency disease caused by gain-of-function mutations in PIK3CD.Clinical features of autoimmune disease have been reported in patients with APDS1.In this study,we reported three patients with APDS1 presenting with systemic lupus erythematosus(SLE)phenotype.The clinical manifestations included recurrent respiratory tract infection,lymphoproliferation,Coombs-positive hemolytic anemia,decreased complement fractions,positive antinuclear antibodies,renal complications related to SLE associated diseases,which met the clinical spectrum of APDS1 and the classification criteria of SLE.The immunological phenotype included an inversion in the CD4:CD8 ratio,an increase in both non-circulating Tfh CD4^(+)memory T and circulating Tfh populations,a low level of recent thymic emigrant T cells,overexpression of CD57 on T cells,and a decrease in B cells with fewer antibody class switch recombination.These phenotypes detected in patients with APDS1 presenting with SLE were resemble that in patients with APDS1 presenting without SLE.Meanwhile,we described the effect of glucocorticoids and rapamycin therapy on patients with APDS1.The phosphorylation of S6 at Ser235/236 was inhibited in patients with APDS1 who underwent glucocorticoids therapy,including two who presented with SLE phenotype.The phosphorylation of AKT at Ser473 and phosphorylation of S6 at Ser235/236 were inhibited in other patients with APDS1 who underwent rapamycin therapy.Here,we showed the coexistence of immunodeficiency and SLE phenotype in APDS1,and the inhibition of rapamycin in activated Akt-mTOR signaling pathway. | Yanping Wang Qiuyun Yang Xuemei Chen Wenjing Tang Lina Zhou Zhi Chen Yunfei An Zhiyong Zhang Xuemei Tang Xiaodong Zhao | 2021 | Genes & Diseases2021,8,6: | 3 |
| 14 | Regulation of impedance matching feature and electronic structure of nitrogen-doped carbon nanotubes for high-performance electromagnetic wave absorption显示文摘In this study,we developed a facile method to fabricate three-dimensional(3D)structures composed of FeNi alloy nanoparticles encapsulated in N-doped carbon nanotubes that grafted on the SiO_(2) spheres(Fe_(x)Ni_(y)@NCNT@SiO_(2))for electromagnetic wave(EMW)absorption.The experimental results suggest that the impedance matching characteristic can be tuned by the introduction of SiO_(2) spheres in the 3D structure.Density functional theory(DFT)calculations showed that the introduction of Ni improved the polarization and conductive losses of the Fe_(x)Ni_(y)@NCNT@SiO_(2).As a result,the optimal 3D structure exhibits excellent EMW absorption property with a reflection loss and effective absorption bandwidth are-49.39 dB and 4.32 GHz,respectively,even though the matching thickness is only 1.6 mm,superior to most magnetic carbon-based composites.Thus,our current approach opens up an effective way to the development of low-cost,high-performance EMW absorbers. | Fenghui Cao Jia Xu Minjie Liu Feng Yan Qiuyun Ouyang Xitian Zhang Xiaoli Zhang Yujin Chen | 2022 | Journal of Materials Science & Technology2022,,13: | 3 |
| 15 | Stock assessment for Atlantic yellowfin tuna based on extended surplus production model considering life history显示文摘The modern fishery stock assessment could be conducted by various models,such as Stock Synthesis model with high data requirement and complicated model structure,and the basic surplus production model,which fails to incorporate individual growth,maturity,and fishery selectivity,etc.In this study,the Just Another Bayesian Biomass Assessment(JABBA)Select which is relatively balanced between complex and simple models,was used to conduct stock assessment for yellowfin tuna(Thunnus albacares)in the Atlantic Ocean.Its population dynamics was evaluated,considering the influence of selectivity patterns and different catch per unit effort(CPUE)indices on the stock assessment results.The model with three joint longline standardized CPUE indices and logistic selectivity pattern performed well,without significant retrospective pattern.The results indicated that the stock is not overfished and not subject to overfishing in 2018.Sensitivity analyses indicated that stock assessment results are robust to natural mortality but sensitive to steepness of the stock-recruitment relationship and fishing selectivity.High steepness was revealed to be more appropriate for this stock,while the fishing selectivity has greater influence to the assessment results than life history parameters.Overall,JABBA-Select is suitable for the stock assessment of Atlantic yellowfin tuna with different selectivity patterns,and the assumptions of natural mortality and selectivity pattern should be improved to reduce uncertainties. | Zhipan Tian Fei Wang Siquan Tian Qiuyun Ma | 2022 | Acta Oceanologica Sinica2022,41,8: | 2 |
| 16 | UPLC-MS metabolomics provides insights into the diff erences between black- and white-shelled Pacifi c oysters Crassostrea gigas显示文摘A variety of shell colors are one of the most fundamental characteristics of molluscs,which have importantly ecological and economic signifi cance.The Pacifi c oyster Crassostrea gigas is distributed in many sea areas around the world and also an aquacultured mollusc with high nutritional value.In this study,the whole soft body and the mantle tissue of black-shelled Pacifi c oyster(BSO)and white-shelled Pacifi c oyster(WSO)with starkly diff erent melanin contents were compared,and the diff erences in physiology and metabolism between BSO and WSO were analyzed.The results of physiological indicators suggested BSO show more melanin,more dry matter,more crude lipid content,and stronger ability to scavenge free radicals than WSO.The altered metabolites of glycerophospholipids,fatty acyls,and steroids revealed diff erent regulatory mechanisms of lipids.The correlation analysis of metabolomics and previously published RNAseq data suggested that BSO and WSO mainly diff ered in the basal metabolic processes,such as lipid,amino acid and purine metabolisms.This study provides insights into the changes in the physiological indictors and the metabolites of oysters with varying melanin content. | Xi CHEN Qiuyun JIANG Hongce SONG Lingling LI Chaoyi XIE Baoyu HUANG Yaqiong LIU Meiwei ZHANG Lei WEI Xiaotong WANG | 2021 | Journal of Oceanology and Limnology2021,39,1: | 2 |
| 17 | Beak Measurements of Octopus (Octopus variabilis) in Jiaozhou Bay and Their Use in Size and Biomass Estimation显示文摘Cephalopods play key roles in global marine ecosystems as both predators and preys.Regressive estimation of original size and weight of cephalopod from beak measurements is a powerful tool of interrogating the feeding ecology of predators at higher trophic levels.In this study,regressive relationships among beak measurements and body length and weight were determined for an octopus species(Octopus variabilis),an important endemic cephalopod species in the northwest Pacific Ocean.A total of 193 individuals(63 males and 130 females) were collected at a monthly interval from Jiaozhou Bay,China.Regressive relationships among 6 beak measurements(upper hood length,UHL;upper crest length,UCL;lower hood length,LHL;lower crest length,LCL;and upper and lower beak weights) and mantle length(ML),total length(TL) and body weight(W) were determined.Results showed that the relationships between beak size and TL and beak size and ML were linearly regressive,while those between beak size and W fitted a power function model.LHL and UCL were the most useful measurements for estimating the size and biomass of O.variabilis.The relationships among beak measurements and body length(either ML or TL) were not significantly different between two sexes;while those among several beak measurements(UHL,LHL and LBW) and body weight(W) were sexually different.Since male individuals of this species have a slightly greater body weight distribution than female individuals,the body weight was not an appropriate measurement for estimating size and biomass,especially when the sex of individuals in the stomachs of predators was unknown.These relationships provided essential information for future use in size and biomass estimation of O.variabilis,as well as the estimation of predator/prey size ratios in the diet of top predators. | XUE Ying REN Yiping MENG Wenrong LI Long MAO Xia HAN Dongyan MA Qiuyun | 2013 | Journal of Ocean University of China2013,12,3: | 2 |
| 18 | Long non-coding RNA H19 contributes to hypoxia-induced CPC injury by suppressing Sirt1 through miR-200a-3p显示文摘 | Linlin Li Qiuyun Wang Zhize Yuan Anqing Chen Zuyun Liu Haiqing Li Zhe Wang | 2018 | Acta Biochimica et Biophysica Sinica2018,50,10: | 2 |
| 19 | Three-dimensional solution structure of ω-conotoxin SO_(3) determined by ^(1)H NMR显示文摘Cone snails (Conus) elaborate a series of conotoxin (CTX) peptides in their venoms to paralyze their prey. Among these toxins, w-CTX抯 specifically target to presynaptic voltage-gated calcium channel subsets, causing inhibition of neurotransmitter release. w-CTX SO3 was isolated from the venom of Conus striatus, which is the only available fish-hunting snail near the coast of the South China Sea. The three-dimensional solution structure of w-CTX SO3, a peptide which is the only w-conotoxin reported to show high homology with another w-CTX (MVIIA from C. Magus), has been determined by 1H NMR techniques. The molecular structure of w-CTX SO3 is stabilized by three disulfide bridges and a short triple-stranded antiparallel b-sheet with four turns. A comprehensive comparison suggested that the backbone conformation of w-CTXs was quite conserved, while the length of b-sheet and the type of some turns might have minor differences. | YAN Yongbin TU Guangzhong LUO Xuechun DAI Qiuyun HUANG Peitang ZHANG Riqing | 2003 | Chinese Science Bulletin2003,48,11: | 2 |
| 20 | Equilibrium, kinetics and thermodynamic studies for sorption of chlorobenzenes on CTMAB modified bentonite and kaolinite显示文摘 | Yuehong Shu Laisheng Li Qiuyun Zhang Honghai Wu | 2009 | Journal of Hazardous Materials2009,,1: | 2 |