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| 1 | Spirolindemers A and B,Lindenane Sesquiterpenoid Oligomers Equipped with Oxaspiro[4.5]decane from Chloranthus henryi显示文摘Spirolindemers A and B,unprecedented lindenane sesquiterpenoid dimer(1)and trimer(2)equipped with oxaspiro[4.5]decane unit,were discovered from the medicinal plant Chloranthus henryi.Their structures including absolute configurations were achieved by HRMS,NMR,ECD,X-ray diffraction analyses,and quantum chemical calculations.Biogenetically,hetero-and homo-Diels-Alder additions may dominate the formation of oxaspiro[4.5]decane and spiro[4.5]decane skeletons,respectively.Compound 1 showed anti-inflammatory activity by inhibiting the expression of iNOS and COX-2. | Jixin Li Jun Chi Pengfei Tang Yunpeng Sun Weijia Lu Wenjun Xu Yongyue Wang Jun Luo Lingyi Kong | 2022 | Chinese Journal of Chemistry2022,40,5: | 4 |
| 2 | Sciatic nerve repair using adhesive bonding and a modified conduit显示文摘When repairing nerves with adhesives, most researchers place glue directly on the nerve stumps, but this method does not fix the nerve ends well and allows glue to easily invade the nerve ends. In this study, we established a rat model of completely transected sciatic nerve injury and repaired it using a modified 1 cm-length conduit with inner diameter of 1.5 mm. Each end of the cylindrical conduit contains a short linear channel, while the enclosed central tube protects the nerve ends well. Nerves were repaired with 2-octyl-cyanoacrylate and suture, which complement the function of the modified conduit. The results demonstrated that for the same conduit, the average operation time using the adhesive method was much shorter than with the suture method. No significant differences were found between the two groups in sciatic function index, motor evoked potential latency, motor evoked potential amplitude, muscular recovery rate, number of medullated nerve fibers, axon diameter, or medullary sheath thickness. Thus, the adhesive method for repairing nerves using a modified conduit is feasible and effective, and reduces the operation time while providing an equivalent repair effect. | Xiangdang Liang Hongfei Cai Yongyu Hao Geng Sun Yaoyao Song Wen Chen | 2014 | Neural Regeneration Research2014,9,6: | 3 |
| 3 | Sap flow characteristics of three afforestation species during the wet and dry seasons in a dry-hot valley in Southwest China显示文摘Assessing and using tree species(exotic or native) with superior tolerance to environmental stresses(such as drought and high temperature) play an important role in afforestation practices. In the present study, stem sap flow characteristics and responses to ambient meteorological factors of three tree species, Albizzia kalkora(native), Azadirachta indica(exotic), and Acacia auriculaeformis(exotic), in a dry-hot valley(Yuanmou, Yunnan Province, China) were investigated using thermal dissipation probes. The diurnal dynamics of sap flow in three studied species displayed an obvious circadian rhythm during the wet and dry seasons, with the exception of A.indica during the dry season. The sap flow velocity(SFV)in A. kalkora and A. auriculaeformis was significantly positively correlated with photosynthetically active radiation(PAR), air temperature, vapour pressure deficit(VPD)and wind speed, but negatively correlated with atmosphericrelative humidity over the two seasons. The cross-correlation analysis also revealed that the SFV of the three species was significantly correlated with PAR and VPD(P<0.001). Additionally, stem sap flow lagged behind PAR but ahead of VPD, and the diurnal sap flow was more dependent on PAR than on VPD. However, we found that the dominant climatic factor influencing the stem sap flow differed between daytime and nighttime. PAR was more influential than other meteorological factors during the daytime, while VPD or other factors were more influential overnight. When the nighttime refilling ability of the three tree species was compared, our results suggest that A.indica has higher drought resistance and better for afforestation of the studied region. | Xiaofei Wang Jianfeng Liu Yongyu Sun Kun Li Chunhua Zhang | 2017 | Journal of Forestry Research2017,28,1: | 2 |
| 4 | Research on Interference Cancellation for Switched-on Small Cells in Ultra Dense Network显示文摘 | SUN Yang CHANG Yongyu WANG Chao ZHANG Lu ZHANG Yu WANG Xinhui | 2016 | ZTE Communications2016,14,B12: | 1 |
| 5 | Ultrasonic extraction of ferulic acid from Ligusticum chuanxiong 显示文摘 | Sun YongYue Wang WenHua | 2008 | J Chin Inst Chem Eng2008,39,6: | 1 |
| 6 | Class 1 integron gene cassettes in multidrug-resistant Gram-negative bacteria in southern China显示文摘 | Kuihai Wu Fengping Wang Jingjing Sun Qian Wang Qing Chen Shouyi Yu Yongyu Rui | 2012 | International Journal of Antimicrobial Agents2012,,3: | 1 |
| 7 | Expression of Survivin in Early Villus and Decidua and Its Implication显示文摘Summary: To investigate the expression and implication of survivin protein and mRNA in decidua and villus and the effects of mifepristone on its expression, survivin levels in decidua and villus collected from 15 normal early pregnant women and 15 early pregnant women pretreated with 150 mg mifepristone and 400 μg misoprostol were assessed by immuno-histochemical techniques and reverse transcriptional-polymerase chain reaction (RT-PCR). Our results showed that survivin proteins were stained in the cytoplasm of trophoblasts and decidual cells and in the nuclei of some of the decidual glandular epithelial cells. The expression was strongest in the trophoblasts and decidual glandular epithelial cells. The expression values in the villus and decidua were (14.56±2.44) and (10.46±2.81) respectively for normal pregnant and (8.45±2.08), (7.33±1.91) for those pretreated with mifepristone respectively (P<0.05). The transcription of survivin mRNA in villus and decidua of those pretreated with mifepristone decreased significantly compared with those in the normal pregnant women (P<0.05). It is concluded that survivin can be expressed in the decidua and villus and mifepristone inhibits its mRNA transcription and protein expression, which could possibly be one of the factors inducing decidual and villous apoptosis. | LI Hongfa(李红发) YANG Jing(杨静) SUN Yongyu(孙永玉) | 2002 | Journal of Huazhong University of Science and Technology(Medical Sciences)2002,22,2: | 1 |
| 8 | Expression of c-erbB2 in Gestational Trophoblastic Disease and Its Clinical Significance显示文摘Summary: In order to explore a potential indicator of predicting the occurrence and development of gestational trophoblastic tumor, the expression of c-erbB2 oncogene in human normal placenta, hydatidiform mole and choriocarcinoma was investigated. The expression of c-erbB2 was detected immunohistochemically by monoclonal antibody against the gene on the formalin-fixed paraffin sections of 21 hydatidiform moles, 21 invasive moles, 20 choriocarcinomas and 30 normal placentas. Results showed that the expression level of c-erbB2 was significantly higher in gestational trophoblastic tumor than in hydatidiform mole and normal placenta of midterm and term pregnancy (P<0.05), while there was no significant difference between patients with gestational trophoblastic tumor of stage Ⅲ, Ⅳ and those of stage Ⅰ, Ⅱ. It was demonstrated that overexpression of c-erbB2 may closely associated with malignant transformation of hydatidiform mole, not only providing important insight into pathogenesis of gestational trophoblastic tumor, but also having an important significance for the early diagnosis and early treatment of gestational trophoblastic tumor. | WANG Yuxia(王玉霞) CAO Yang(曹阳) SUN Yongyu(孙永玉) | 2002 | Journal of Huazhong University of Science and Technology(Medical Sciences)2002,22,2: | 1 |
| 9 | Ultrasonic extraction of ferulic acid from Angelica sinensis 显示文摘 | Can Quan Yongyue Sun Jia Qu | 2009 | The Canadian Journal of Chemical Engineering2009,87,4: | 1 |
| 10 | RETRACTED ARTICLE:Sapflow characteristics of three afforestation species during the wet and dry seasons in a dry–hot valley in Southwest China显示文摘This article is retracted by the publisher due to duplicate publication caused by technical mishap during the pro-duction process. | Xiaofei Wang Jianfeng Liu Yongyu Sun Kun Li Chunhua Zhang | 2023 | Journal of Forestry Research2023,34,2: | 0 |
| 11 | Current Status and Advancements in Research of Plantation Nutrient Cycling显示文摘This paper introduces concepts and current research status of plantation nutrients cyclings, and analyzes main contents of plantation nutrients cycling as nutrients contents, accumulation and distribution of nutrients elements, understory species and forest litter. At the same time, the paper summarizes the problems in plantation nutrients cycling and its prospects. | LI Kun ZHANG Changshun SUN Yongyu | 2006 | Chinese Forestry Science and Technology2006,5,2: | 0 |
| 12 | Effects of Land Uses on Soil Organic Carbon and Carbon Pool Management Index显示文摘Carbon management index(ICM) is used to evaluate the scientificity of soil management.Soil organic carbon(SOC) and readily oxidized carbon (ROC) contents under Leucaena leucocephala stand, Acacia glauca stand,Acacia auriculiformis stand, Azadirachta indica stand,wasteland and dry cropland were determined and their ICM were calculated.The results showed that the SOC and ROC contents under the 6 land use types were 4.22-5.92 g·kg-1 and 1.34-2.33 g·kg-1,respectively.No significant differences in SOC contents among these land uses were observed.The ROC contents under the 4 types of woodland,however,were significantly higher than these under dry cropland or wasteland(P<0.05). The ROC were high significantly(P<0.001) correlated(R2 is 66.3%) with SOC.Compared with wasteland,the ICM ranged from 1.77 to 2.36 under these woodlands,and 0.99 under dry cropland.It is revealed that the litter quantity and land management under these land uses may be the key factors resulting in the variation of ROC.At ecological fragile region of Dry-hot Valley,closure management is useful to sequestrate C in woodland soils.However,the management systems for soil carbon pool under dry cropland are not in a sound way. | Tang Guoyong Li Kun Sun Yongyu Zhang Chunhua | 2012 | Chinese Forestry Science and Technology2012,11,3: | 0 |