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163篇 您的检索式:作者名="Jing TENG"
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1Sodium oligomannate therapeutically remodels gut microbiota and suppresses gut bacterial amino acids-shaped neuroinflammation to inhibit Alzheimer's disease progression显示文摘Recently,increasing evidence has suggested the association between gut dysbiosis and Alzheimer's disease(AD)progression,yet the role of gut microbiota in AD pathogenesis remains obscure.Herein,we provide a potential mechanistic link between gut microbiota dysbiosis and neuroinflammation in AD progression.Using AD mouse models,we discovered that,during AD progression,the alteration of gut microbiota composition leads to the peripheral accumulation of phenylalanine and isoleucine,which stimulates the differentiation and proliferation of pro-inflammatory T helper 1(Thl)cells.The brain-infiltrated peripheral Th1 immune cells are associated with the Ml microglia aaivation,contributing to AD-associated neuroinflammation.Importantly,the elevation of phenylalanine and isoleucine concentrations and the increase of Th1 cell frequency in the blood were also observed in two small independent cohorts of patients with mild cognitive impairment(MCI)due to AD.Furthermore,GV-971,a sodium oligomannate that has demonstrated solid and consistent cognition improvement in a phase 3 clinical trial in China,suppresses gut dysbiosis and the associated phenylalanine/isoleucine accumulation,harnesses neuroinflammation and reverses the cognition impairment.Together,our findings highlight the role of gut dysbiosis-promoted neuroinflammation in AD progression and suggest a novel strategy for AD therapy by remodelling the gut microbiota.Xinyi Wang Guangqiang Sun Teng Feng Jing Zhang Xun Huang Tao Wang Zuoquan Xie Xingkun Chu Jun Yang Huan Wang Shuaishuai Chang Yanxue Gong Lingfei Ruan Guanqun Zhang Siyuan Yan Wen Lian Chen Du Dabing Yang Qingli Zhang Feifei Lin Jia Liu Haiyan Zhang Changrong Ge Shifu Xiao Jian Ding Meiyu Geng 2019Cell Research2019,29,10:192
2The Association of Maternal Body Composition and Dietary Intake with the Risk of Gestational Diabetes Mellitus during the Second Trimester in a Cohort of Chinese Pregnant Women显示文摘Objective To investigate the association of maternal body composition and dietary intake with the risk of gestational diabetes mellitus(GDM). Methods A total 154 GDM subjects and 981 controls were enrolled in a prospective cohort study in 11 hospitals from May 20, 2012 to December 31, 2013. Bioelectrical impedance analysis and dietary surveys were used to determine body composition and to evaluate the intake of nutrients in subjects at 21-24 weeks' gestation(WG). Logistic regression analysis was applied to explore the relationships of maternal body composition and dietary intake with the risk of GDM morbidity. Results Age, pre-pregnant body weight(BW), and body mass index(BMI) were associated with increased risk of GDM. Fat mass(FM), fat mass percentage(FMP), extracellular water(ECW), BMI, BW, energy, protein, fat, and carbohydrates at 21-24 WG were associated with an increased risk of GDM. In contrast, fat free mass(FFM), muscular mass(MM), and intracellular water(ICW) were associated with a decreased risk of GDM. Conclusion Maternal body composition and dietary intake during the second trimester of pregnancy were associated with the risk of GDM morbidity.Xu Qing Gao Zhi Ying Li Li Ming Wang Lu Zhang Qian Teng Yue Zhao Xia Ge Sheng Jing Hong Jiang Yang Yong Tao Liu Xiao Jun Lyu Chun Jian Mao Lun Yu Xiao Ming Liu Ying Hua Kong Ai Jing Yang Xue Yan Liu Zhao Zhang Yong Wang Jin Zhang Xin Sheng Xue Chang Yong Lu Yan Ping 2016Biomedical and Environmental Sciences2016,29,1:29
3Predictive factors for the local recurrence and distant metastasis of phyllodes tumors of the breast: a retrospective analysis of 192 cases at a single center显示文摘The local recurrence rate of phyllodes tumors of the breast varies widely among different subtypes, and distant metastasis is associated with poor survival. This study aimed to identify factors that are predictive of local recurrence-free survival(LRFS), distant metastasis-free survival(DMFS), and overall survival(OS) in patients with phyllodes tumors of the breast. Clinical data of all patients with a phyllodes tumor of the breast(n = 192) treated at Sun Yat-sen University Cancer Center between March 1997 and December 2012 were reviewed. The Pearson χ2 test was used to investigate the relationship between clinical features of patients and histotypes of tumors. Univariate and multivariate Cox regression analyses were performed to identify factors that are predictive of LRFS, DMFS, and OS. In total, 31(16.1%) patients developed local recurrence, and 12(6.3%) developed distant metastasis. For the patients who developed local recurrence, the median age at the diagnosis of primary tumor was 33 years(range, 17-56 years), and the median size of primary tumor was 6.0 cm(range, 0.8-18 cm). For patients who developed distant metastasis, the median age at the diagnosis of primary tumor was 46 years(range, 24-68 years), and the median size of primary tumor was 5.0 cm(range, 0.8-18 cm). In univariate analysis, age, size, hemorrhage, and margin status were found to be predictive factors for LRFS(P = 0.009, 0.024, 0.004, and 0.001, respectively), whereas histotype, epithelial hyperplasia, margin status, and local recurrence were predictors of DMFS(P = 0.001, 0.007, 0.007, and < 0.001, respectively). In multivariate analysis, independent prognostic factors for LRFS included age [hazard ratio(HR) = 3.045, P = 0.005], tumor size(HR = 2.668, P = 0.013), histotype(HR = 1.715, P = 0.017), and margin status(HR = 4.530, P< 0.001). Histotype(DMFS: HR = 4.409, P = 0.002; OS: HR = 4.194, P = 0.003) and margin status(DMFS: HR = 2.581, P = 0.013; OS: HR = 2.507, P = 0.020) were independent predictors of both DMFS and OS. In this cohort, younger age, a larger tumor size, a higher tumor grade, and positive margins were associated with lower rates of LRFS. Histotype and margin status were found to be independent predictors of DMFS and OS.Jing Wei Yu-Ting Tan Yu-Cen Cai Zhong-Yu Yuan Dong Yang Shu-Sen Wang Rou-Jun Peng Xiao-Yu Teng Dong-Geng Liu Yan-Xia Shi 2014Chinese Journal of Cancer2014,33,10:18
4Design and fabrication of broadband ultralow reflectivity black Si surfaces by laser micro/nanoprocessing显示文摘Light collection efficiency is an important factor that affects the performance of many optical and optoelectronic devices.In these devices,the high reflectivity of interfaces can hinder efficient light collection.To minimize unwanted reflection,anti-reflection surfaces can be fabricated by micro/nanopatterning.In this paper,we investigate the fabrication of broadband anti-reflection Si surfaces by laser micro/nanoprocessing.Laser direct writing is applied to create microstructures on Si surfaces that reduce light reflection by light trapping.In addition,laser interference lithography and metal assisted chemical etching are adopted to fabricate the Si nanowire arrays.The anti-reflection performance is greatly improved by the high aspect ratio subwavelength structures,which create gradients of refractive index from the ambient air to the substrate.Furthermore,by decoration of the Si nanowires with metallic nanoparticles,surface plasmon resonance can be used to further control the broadband reflections,reducing the reflection to below 1.0%across from 300 to 1200 nm.An average reflection of 0.8%is achieved.Jing Yang Fangfang Luo Tsung Sheng Kao Xiong Li Ghim Wei Ho Jinghua Teng Xiangang Luo Minghui Hong 2014Light(Science & Applications)2014,3,1:17
5Analysis of soft tissue sarcomas in 1118 cases显示文摘背景分析并且周期性地比较软组织肉瘤以便更新发生,临床的诊断,治疗,和进行中的研究是重要的。现在的学习被进行决定软织物肉瘤的每种类型的相对频率。在 1993 年 1 月和 2006 年 12 月之间对待的主要软织物肉瘤的 1118 个盒子全部的方法 A 在回顾的分析被评估。根据病理学的组织结果,有最高的比例的疾病是恶意的含纤维的 histiocytomas (35.24%) , synovial 肉瘤(17.08%) , liposarcomas (16.28%) ,和 rhabdomyosarcomas (12.61%) 。软织物肉瘤在每个年龄组被检测并且发生在身体的所有部分。盒子的数字多年以来逐渐地增加了。结论恶意的含纤维的 histiocytomas 在软织物肉瘤之中有最高的频率。盒子的数字多年以来逐渐地增加了。FANG Zhi-wei CHEN Jing TENG Sheng CHEN Yong XUE Rui-feng 2009Chinese Medical Journal2009,,1:16
6Landslide monitoring with high-resolution SAR data in the Three Gorges region显示文摘Employing the well-known D-InSAR technique,we investigated landslide monitoring in the Three Gorges region using TerraSAR-X data.The experiment demonstrates that using both the amplitude and differential phase allows us to identify the precise location,deformation and time range of occurrence of certain landslides.To overcome the atmospheric effect on D-InSAR results,a time-series analysis was also carried out.The observed nonlinear relationship between the deformation and water level suggests that reservoir water level fluctuation is one of the major causes of landslides,which is significant in terms of issuing landslide warnings.In addition,the comparison of TerraSAR-X and C-band ASAR data results indicates that TerraSAR-X data provide far more reasonable deformation measurements because of their high temporal and spatial resolutions.MingSheng Liao Jing Tang Teng Wang Timo Balz Lu Zhang 2012Science China Earth Sciences2012,55,4:15
7Exosomes derived from bone marrow mesenchymal stem cells protect the injured spinal cord by inhibiting pericyte pyroptosis显示文摘Mesenchymal stem cell(MSC)transplantation is a promising treatment strategy for spinal cord injury,but immunological rejection and possible tumor formation limit its application.The therapeutic effects of MSCs mainly depend on their release of soluble paracrine factors.Exosomes are essential for the secretion of these paracrine effectors.Bone marrow mesenchymal stem cell-derived exosomes(BMSC-EXOs)can be substituted for BMSCs in cell transplantation.However,the underlying mechanisms remain unclear.In this study,a rat model of T10 spinal cord injury was established using the impact method.Then,30 minutes and 1 day after spinal cord injury,the rats were administered 200μL exosomes via the tail vein(200μg/mL;approximately 1×106 BMSCs).Treatment with BMSC-EXOs greatly reduced neuronal cell death,improved myelin arrangement and reduced myelin loss,increased pericyte/endothelial cell coverage on the vascular wall,decreased bloodspinal cord barrier leakage,reduced caspase 1 expression,inhibited interleukin-1βrelease,and accelerated locomotor functional recovery in rats with spinal cord injury.In the cell culture experiment,pericytes were treated with interferon-γand tumor necrosis factor-α.Then,Lipofectamine 3000 was used to deliver lipopolysaccharide into the cells,and the cells were co-incubated with adenosine triphosphate to simulate injury in vitro.Pre-treatment with BMSC-EXOs for 8 hours greatly reduced pericyte pyroptosis and increased pericyte survival rate.These findings suggest that BMSC-EXOs may protect pericytes by inhibiting pyroptosis and by improving blood-spinal cord barrier integrity,thereby promoting the survival of neurons and the extension of nerve fibers,and ultimately improving motor function in rats with spinal cord injury.All protocols were conducted with the approval of the Animal Ethics Committee of Zhengzhou University on March 16,2019.Yan Zhou Lu-Lu Wen Yan-Fei Li Kai-Min Wu Ran-Ran Duan Yao-Bing Yao Li-Jun Jing Zhe Gong Jun-Fang Teng Yan-Jie Jia 2022Neural Regeneration Research2022,17,1:15
8Three-dimensional-printed individualized porous implants:A new“implant-bone”interface fusion concept for large bone defect treatment显示文摘Bone defect repairs are based on bone graft fusion or replacement.Current large bone defect treatments are inadequate and lack of reliable technology.Therefore,we aimed to investigate a simple technique using three-dimensional(3D)-printed individualized porous implants without any bone grafts,osteoinductive agents,or surface biofunctionalization to treat large bone defects,and systematically study its long-term therapeutic effects and osseointegration characteristics.Twenty-six patients with large bone defects caused by tumor,infection,or trauma received treatment with individualized porous implants;among them,three typical cases underwent a detailed study.Additionally,a large segmental femur defect sheep model was used to study the osseointegration characteristics.Immediate and long-term biomechanical stability was achieved,and the animal study revealed that the bone grew into the pores with gradual remodeling,resulting in a long-term mechanically stable implant-bone complex.Advantages of 3D-printed microporous implants for the repair of bone defects included 1)that the stabilization devices were immediately designed and constructed to achieve early postoperative mobility,and 2)that osseointegration between the host bone and implants was achieved without bone grafting.Our osseointegration method,in which the“implant-bone”interface fusion concept was used instead of“bone-bone”fusion,subverts the traditional idea of osseointegration.Teng Zhang Qingguang Wei Hua Zhou Zehao Jing Xiaoguang Liu Yufeng Zheng Hong Cai Feng Wei Liang Jiang Miao Yu Yan Cheng Daoyang Fan Wenhao Zhou Xinhong Lin Huijie Leng Jian Li Xinyu Li Caimei Wang Yun Tian Zhongjun Liu 2021Bioactive Materials2021,6,11:9
9Sustained Akt signaling in articular chondrocytes causes osteoarthritis via oxidative stress-induced senescence in mice显示文摘Osteoarthritis(OA) is an age-related disorder that is strongly associated with chondrocyte senescence. The causal link between disruptive PTEN/Akt signaling and chondrocyte senescence and the underlying mechanism are unclear. In this study, we found activated Akt signaling in human OA cartilage as well as in a mouse OA model with surgical destabilization of the medial meniscus.Genetic mouse models mimicking sustained Akt signaling in articular chondrocytes via PTEN deficiency driven by either Col2a1-Cre or Col2a1-Cre^(ERT2) developed OA, whereas restriction of Akt signaling reversed the OA phenotypes in PTEN-deficient mice.Mechanistically, prolonged activation of Akt signaling caused an accumulation of reactive oxygen species and triggered chondrocyte senescence as well as a senescence-associated secretory phenotype, whereas chronic administration of the antioxidant N-acetylcysteine suppressed chondrocyte senescence and mitigated OA progression in PTEN-deficient mice. Therefore,inhibition of Akt signaling by PTEN is required for the maintenance of articular cartilage. Disrupted Akt signaling in articular chondrocytes triggers oxidative stress-induced chondrocyte senescence and causes OA.Jing Xie Jingting Lin Min Wei Yan Teng Qi He Guan Yang Xiao Yang 2019Bone Research2019,7,3:8
10Research on the ecological risk of heavy metals in the soil around a Pb–Zn mine in the Huize County, China显示文摘The soil pollution by heavy metals was characterized in the mine tailings and surrounding soils of an old Pb–Zn mine in Huize County. Three hundred and ninety-six samples of agricultural and non-agricultural soil were analyzed for the total metal concentration by acid digestion and sixty-eight selected soil samples were used to determine the chemical fractionation of heavy metals with the modified BCR sequential extraction method. The pollution index of the heavy metals indices for As, Cd, Cr, Cu,Hg, Pb and Zn of non-agricultural soil and agricultural soils in the study area indicated the spreading of heavy metal pollution. Sequential extraction showed that most of Cd existed in an exchangeable form(31.2 %). The available content of Pb, Cu and Zn was mainly distributed in acid extractable fractions and Fe/Mn oxide fractions(27.9, 30 and 27.2 %), and Hg, As and Cr were mainly associated with residual fractions(90.4, 72.9 and 76.8 %). The risks of heavy metals were also evaluated by the risk assessment code(RAC) and potential ecological risk index, respectively. The results of RAC showed a medium and high risk of Cd(45.6 and 54.4 %), medium risk of Zn(100 %), low and medium risk of Cu(41.2 and 58.8 %), largely no risk of Hg(97.1 %), and mainly low risk of As and Pb(92.6and 91.8 %). The range of the potential ecological risk of soil was 58.2–1839.3, revealing a considerably high ecological risk in the study area, most likely related to acid mine drainage and the mining complexes located in the area. The results can be used during the ecological risk screening stage, in conjunction with the total concentrations and metal fractionation values, to better estimate ecological risk.Sijin Lu Yanguo Teng Yeyao Wang Jing Wu Jinsheng Wang 2015Chinese Journal Of Geochemistry2015,34,4:8
11Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes.MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 2020Biomedical and Environmental Sciences2020,33,12:8
12Inhibition of microRNA-29b suppresses oxidative stress and reduces apoptosis in ischemic stroke显示文摘MicroRNAs(miRNAs) regulate protein expression by antagonizing the translation of mRNAs and are effective regulators of normal nervous system development, function, and disease. Micro RNA-29 b(mi R-29 b) plays a broad and critical role in brain homeostasis. In this study, we tested the function of mi R-29 b in animal and cell models by inhibiting mi R-29 b expression. Mouse models of middle cerebral artery occlusion were established using the modified Zea-Longa suture method. Prior to modeling, 50 nmol/kg mi R-29 b antagomir was injected via the tail vein. Mi R-29 b expression was found to be abnormally increased in ischemic brain tissue. The inhibition of mi R-29 b expression decreased the neurological function score and reduced the cerebral infarction volume and cell apoptosis. In addition, the inhibition of mi R-29 b significantly decreased the malondialdehyde level, increased superoxide dismutase activity, and Bcl-2 expression, and inhibited Bax and Caspase3 expression. PC12 cells were treated with glutamate for 12 hours to establish in vitro cell models of ischemic stroke and then treated with the mi R-29 antagomir for 48 hours. The results revealed that mi R-29 b inhibition in PC12 cells increased Bcl-2 expression and inhibited cell apoptosis and oxidative damage. These findings suggest that the inhibition of mi R-29 b inhibits oxidative stress and cell apoptosis in ischemic stroke, producing therapeutic effects in ischemic stroke. This study was approved by the Laboratory Animal Care and Use Committee of the First Affiliated Hospital of Zhengzhou University(approval No. 201709276 S) on September 27, 2017.Yao-Hua Ma Wen-Jing Deng Zhi-Yi Luo Jing Jing Peng-Wei Pan Yao-Bing Yao Yan-Bo Fang Jun-Fang Teng 2022Neural Regeneration Research2022,17,2:6
13How complex is the 2016 Mw 7.8 Kaikoura earthquake, South Island, New Zealand?显示文摘A powerful earthquake of moment magnitude(Mw)7.8occurred in the Kaikoura region,South Island,New Zealand,at00:02:56 AM(local time),14 November 2016.According to the Institute of Geological and Nuclear Sciences(GNS)in New Zealand,Xuhua Shi Yu Wang Jing Liu-Zeng Ray Weldon Shengji Wei Teng Wang Kerry Sieh 2017Science Bulletin2017,62,5:6
14Salvianolic acids improve liver lipid metabolism in ovariectomized rats via blocking STAT-3/SREBP1 signaling显示文摘Postmenopausal women, who have reduced circulating estrogen levels, are more prone to develop obesity and related metabolic diseases than premenopausal women. The absence of safe and effective treatments for postmenopausal obesity has changed the focus to natural products as alternative remedies. Total salvianolic acids(TSA) are the major water-soluble ingredients of Danshen. Salvianolic acid(SA) is the major constituent of the TSA. Salvianolic acids, including TSA and SA, are widely used in traditional Chinese medicine. In the present study, ovariectomized rats and LO2 cells were used to study the effects of salvianolic acids on body weight gain and hepatic steatosis. Salvianolic acids reduced ovariectomy(OVX)-induced body weight gain, attenuated the expressions of hepatic lipogenic genes, such as sterol regulatory element binding protein(SREBP)1, fatty acid synthase(FAS), and stearoyl-CoA desaturase(SCD)1, and decreased the liver triglyceride(TG) and total cholesterol(TC). For the molecular mechanisms, OVX and high glucose-induced phosphorylation of signal transducer and activator of transcription(STAT)-3 was inhibited by salvianolic acids treatment. In LO2 cells, inhibition of STAT-3 by siRNA attenuated the increased expression of SREBP1 and TG induced by high glucose. Salvianolic acids reduced the upregulation of SREBP1 and TG induced by high glucose in LO2 cells. In conclusion, these findings illustrated that salvianolic acids markedly alleviated the lipid metabolism disorders and protected against the postmenopausal obesity. The underlying mechanism was probably associated with the regulation of STAT-3 signaling.CHEN Juan YUE Jia LIU Jiao LIU Yun JIAO Kai-Lin TENG Meng-Ying HU Chun-Yan ZHEN Jing WU Mao-Xuan ZHOU Ming LI Zhong LI Yuan 2018Chinese Journal of Natural Medicines2018,16,11:6
15Differentially expressed protein and gene analysis revealed the effects of temperature on changes in ascorbic acid metabolism in harvested tea leaves显示文摘Tea is an important non-alcoholic beverage worldwide.Tea quality is determined by numerous secondary metabolites in harvested tea leaves,including tea polyphenols,theanine,caffeine,and ascorbic acid(AsA).AsA metabolism in harvested tea leaves is affected by storage and transportation temperature.However,the molecular mechanisms underlying AsA metabolism in harvested tea leaves exposed to different storage and transportation temperature conditions remain unclear.Here we performed RP-HPLC to detect dynamic changes in AsA content in tea leaves subjected to high-(38°C),low-(4°C),or room-temperature(25°C)treatments.The AsA distribution and levels in the treated tea leaves were analyzed using cytological–anatomical characterization methods.The differentially expressed CsAPX1 and CsDHAR2 proteins,which are involved in the AsA recycling pathway,were identified from the corresponding proteomic data using iTRAQ.We also analyzed the expression profiles of 18 genes involved in AsA metabolism,including CsAPX1 and CsDHAR2.AsA was mainly distributed in tea leaf mesophyll cells.High-and low-temperature treatments upregulated the CsAPX1 and CsDHAR2 proteins and induced CsAPX and CsDHAR2 gene expression.These results indicated that the CsAPX1 and CsDHAR2 proteins might have critical roles in AsA recycling in tea leaves.Our results provide a foundation for the in-depth investigation of AsA metabolism in tea leaves during storage and transportation,and they will promote better tea flavor in tea production.Hui Li Zhi-Wei Liu Zhi-Jun Wu Yong-Xin Wang Rui-Min Teng Jing Zhuang 2018Horticulture Research2018,5,1:6
16Effect of Spleen Lymphocytes on the Splenomegaly in Hepatocellular Carcinoma-bearing Mice显示文摘Objective To study the effect of spleen lymphocytes on the splenomegaly by hepatocellular carcinoma-bearing mouse model. Methods Cell counts,cell cycle distribution,the percentage of lymphocytes subsets and the levels of IL-2 were measured,and two-dimensional gel electrophoresis(2-DE) was used to investigate the relationship between spleen lymphocytes and splenomegaly in hepatocellular carcinoma-bearing mice. Results Compared with the normal group,the thymus was obviously atrophied and the spleen was significantly enlarged in the tumor-bearing group. Correlation study showed that the number of whole spleen cells was positively correlated with the splenic index. The cell diameter and cell-cycle phase distribution of splenocytes in the tumor-bearing group showed no significant difference compared to the normal group. The percentage of CD3+ T lymphocytes and CD8+ T lymphocytes in spleen and peripheral blood of tumor-bearing mice were substantially higher than that in the normal mice. Meanwhile,the IL-2 level was also higher in the tumor-bearing group than in the normal group. Furthermore,two dysregulated protein,β-actin and S100-A9 were identi?ed in spleen lymphocytes from H22-bearing mice,which were closely related to cellular motility. Conclusion It is suggested that dysregulated β-actin and S100-A9 can result in recirculating T lymphocytes trapped in the spleen,which may explain the underlying cause of splenomegaly in H22-bearing mice.FANG Jing Jing ZHU Zhen Yuan DONG Hui ZHENG Guo Qiang TENG An Guo LIU An Jun 2014Biomedical and Environmental Sciences2014,27,1:6
17Mining the key regulatory genes of chicken inosine 5'-monophosphate metabolism based on time series microarray data显示文摘IMP(inosine 5'-monophosphate) is a compound that enhances the flavor of poultry meat.IMP has become a new breeding trait to improve poultry meat quality.We tried to identify several potential regulatory genes,and construct their predicted regulatory relationships.Time series gene expression profiles of thigh muscle tissues of Rugao chicken,a famous indigenous breed in China,were performed for analysis of genes that are co-expressed or correlated with the concentration of IMP.We found 15 crucial co-expression genes,which are Hspa2,Pten,Gabpa,Bpi,Mkl1,Srf,Cd34,Hspa4,Etv6,Bmpr2,Gde1,Igfbp5,Cd28,Pecam1 and Gja1,that may directly or indirectly regulate IMP metabolism.Eventually,we computed the correlation coefficient between 19 IMP Genes and 15 CGs(15co-expression genes),and we identified and constructed a predicted regulation network.In conclusion,variation of IMP concentration was primarily connected with the muscle development process.During this process,15 CGs were identified that may have significant influence on IMP metabolism.In particular,Bmpr2,Pten and co-expression genes correlated with Entpd8 might play important roles in regulating IMP de novo synthesis,decomposition and salvage synthesis.Teng Ma Lu Xu Hongzhi Wang Jing Chen Lu Liu Guobin Chang Guohong Chen 2015Journal of Animal Science and Biotechnology2015,6,3:6
18Energy budget of surface waves in the global ocean显示文摘Mechanical energy input from atmosphere and losses from wave-breaking dissipation of sea surface waves are estimated by a direct scheme. This scheme is based on the integration in the wavenumber space of the wind input and breaking dissipation source functions of the MASNUM wave model. The global amount of wind energy input, averaged in 2005, is about 57 TW, and the wave-breaking dissipation summed in deep-water is about 33 TW, over a half of the wind energy input. The residual may be dissipated by beach processes. Global distributions of the energy input and breaking dissipation concentrate in the westerlies of the Southern Hemisphere.TENG Yong YANG Yongzeng QIAO Fangli LU Jing YIN Xunqiang 2009Acta Oceanologica Sinica2009,28,3:6
19Genetic dissection of rice appearance quality and cooked rice elongation by genome-wide association study显示文摘Appearance and cooked rice elongation are key quality traits of rice. Although some QTL for these traits have been identified, understanding of the genetic relationship between them remains limited. In the present study, large phenotypic variation was observed in 760 accessions from the 3 K Rice Genomes Project for both appearance quality and cooked rice elongation. Most component traits of appearance quality and cooked rice elongation showed significant pairwise correlations, but a low correlation was found between appearance quality and cooked rice elongation. A genome-wide association study identified 74 QTL distributed on all 12 chromosomes for grain length, grain width, length to width ratio, degree of endosperm with chalkiness, rice elongation difference, and elongation index. Thirteen regions containing QTL stably expressed in multiple environments and/or exerting pleiotropic effects on multiple traits were detected. By gene-based association analysis and haplotype analysis, 46 candidate genes, including five cloned genes, and 49 favorable alleles were identified for these 13 QTL. The effect of the candidate gene Wx on rice elongation difference was validated by a transgenic strategy. These results shed light on the genetic bases of appearance quality and cooked rice elongation and provide gene resources for improving rice quality by molecular breeding.Xianjin Qiu Jing Yang Fan Zhang Yanan Niu Xiuqing Zhao Congcong Shen Kai Chen Sheng Teng Jianlong Xu 2021The Crop Journal2021,9,6:5
20A β-glucosidase-producing M-2 strain: Isolation from cow dung and fermentation parameter optimization for flaxseed cake显示文摘Flaxseed cake contains cyanogenic glucosides, which can be metabolized into hydrocyanic acid in an animal's body, leading to asphyxia poisoning in cells. Beta-glucosidase is highly efficient in degrading cyanogenic glucosides. The Cattle may have b-glucosidase-producing strains in the intestinal tract after eating small amounts of flaxseed cake for a long time. This study aimed to isolate of a strain from cow dung that produces b-glucosidase with high activity and can significantly reduce the amount of cyanogenic glucosides. We used cow dung as the microflora source and an esculin agar as the selective medium. After screening with 0.05% esculin and 0.01% ferric citrate, we isolated 5 strains producing high amounts of b-glucosidase. In vitro flaxseed cake fermentation was fermented by these 5 strains, in which the strain M-2 exerted the best effect(P < 0.05). The strain M-2 was identified as Lichtheimia ramosa and used as the fermentation strain to optimize the fermentation parameters by a single factor analysis and orthogonal experimental design. The optimum condition was as follows: inoculum size3%, water content 60%, time 144 h, and temperature 32℃. Under this condition, the removal rate of cyanogenic glucosides reached 89%, and crude protein increment reached 44%. These results provided a theoretical basis for the removal of cyanogenic glucosides in flaxseed and the comprehensive utilization of flaxseed cake.Chenhui Li Junshu Wei Yaping Jing Baoxia Teng Pingrong Yang Xinjun Chen Haiying Huang Tang Zhao Tuanjie Che Chunjiang Zhang 2019Animal Nutrition2019,,1:5
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