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| 1 | α-2-HS-glycoprotein is a potential marker predicting hepatitis B e antigen seroconversion in patients with chronic hepatitis B during treatment with pegylated interferon alfa-2b显示文摘The efficacy of interferon (IFN) is limited in about 1/3 of patients with chronic hepatitis B (CHB). We used two-dimensional electrophoresis (2-DE)-based proteomic strategies to identify potential serum markers predicting hepatitis B e antigen (HBeAg) seroconversion in these patients during IFN therapy. Two groups of patients were enrolled: training and validation. In the training group, 2-DE experiments and subsequent identification of altered levels of proteins showed that α-2-HS-glycoprotein, leucine-rich α-2-glycoprotein, and haptoglobin were significantly upregulated as compared with baseline levels in the HBeAg seroconversion group, whereas apolipoprotein C-III precursor, leucine-rich α-2-glycoprotein, and α-albumin were downregulated in the non-seroconversion group. For patients with HBeAg seroconversion in the training group, Western blot analyses showed that α-2-HS-glycoprotein levels in 75% of patients were significantly upregulated at the end of the treatment as compared with baseline levels. Subsequent experiments in the validation group showed that α-2-HS-glycoprotein levels were significantly increased at week 4 in 83.33% of patients in the HBeAg seroconversion group. Dynamic changes in the serum level of α-2-HS-glycoprotein may be a potential early marker for predicting HBeAg seroconversion during IFN treatment for CHB. | MA Hui WANG JiangHua GUO Fang WEI Lai | 2011 | Science China(Life Sciences)2011，54，1： | 6 |
| 2 | Ore-forming Fluid Characteristics of the Saishitang Cu-polymetallic Deposit in Qinghai Province,China显示文摘Saishitang Cu-polymetallic deposit is located in the southeast section of Late Paleozoic arcfold in the southeastern margin of Qaidam platform. Accoring to the geological process of the deposit,four mineralization episodes were identified: melt/fluid coexisting period(O),skarn period(A),first sulfide period(B) and second sulfide period(C),and 10 stages were finally subdivided. Three types of inclusions were classified in seven stages,namely crystal bearing inclusions(type I),aqueous inclusions(type II) and pure liquid inclusions(type III). Type I and II inclusions were observed in stage O1,having homogenization temperature from 252 to 431°C,and salinities ranging from 24.3% to 48.0%. Type I inclusion was present in stage A1,having homogenization temperature from 506 to 548°C,and salinities ranging from 39.4% to 44.6%. In stage B1,type II and III inclusions were observed,with homogenization temperature concentrating between 300–400°C,and salinities from 0.4% to 4.3%. Type II inclusions were present in stage B2,with homogenization temperature varying from 403 to 550°C. In stage C1,type I and II inclusion commonly coexisted,and constituted a boiling inclusion group,having homogenization temperatures at 187–463°C,and salinities in a range of 29.4%–46.8% and 2.2%–11.0%. Type II and III inclusions were developed in stage C2,having homogenization temperature at 124–350°C,and salinities ranging between 1.6% and 15.4%. In stage C3,type II and III inclusions were presented,with a homogenization temperature range of 164–360°C,and salinities varying from 4.0% to 11.0%. The results of micro-thermal analysis show that fluids are characterized by high temperature and high salinity in stage O1 and A1,and experienced slight decrease in temperature and dramatic decrease in salinity in stage B1 and B2. In stage C1,the salinity of fluid increased greatly and a further decrease of temperature and salinity occurred in stage C2 and C3. Fluids boiled in stage C1. With calculated pressure of 22 MPa from the trapping temperature of 284–289°C,a mineralization depth of 2.2 km was inferred. Results of Laser Raman Spectroscopy show high density of H2 O,CH4 and CO2 were found as gas composition. H-O isotope study indicates the oreforming fluids were the mixture of magmatic water and meteoric water. Physicochemical parameters of fluids show oxygen and sulfur fugacity experienced a decrease,and redox state is weakly reducing. Along with fluid evolution,oxidation has increased slightly. Comprehensive analysis shows that melt exsolution occurred during the formation of quartz diorite and that metal elements existed and migrated in the form of chlorine complex. Immiscible fluid separation and boiling widely occurred after addition of new fluids,bringing about dissociation of chlorine-complex,resulting in a great deal of copper precipitation. In conclusion,Saishitang deposit,controlled by regional tectonics,is formed by metasomatism between highly fractionated mineralization rock body and wall rock,and belongs to banded skarn Cu-polymetallic deposit. | LAI Jianqing JU Peijiao MAO Yin AN Jianghua WANG Xiongjun | 2015 | Acta Geologica Sinica(English Edition)2015，89，2： | 2 |
| 3 | Autophagy-related protein ATG5 regulates histone H2B mono-ubiquitylation by translational control of RNF20显示文摘Autophagy is an evolutionarily conserved lysosome-mediated catabolic process(Klionsky,2007).Autophagy is believed to be essential for cell survival,especially when cells were exposed to stresses,such as nutrient starvation.The activation of autophagy under starvation allows cells to survive by providing essential crudes for cell construction via degrading intracellular | Xin Huang Lu Yang Feng-Feng Cai Yufei Wang Ping Chen Jiangsheng Mi Chenghua Yu Jianghua Lai Xiaojun Zhang Shuguang Wei Wen Cui Su Chen | 2017 | Journal of Genetics and Genomics2017，44，10： | 1 |
| 4 | Genetic polymorphism of STR loci in Chinese Drugs 显示文摘 | Lai Jianghua Zheng Haibo Zhu Bofeng | 2002 | J Xi''an Med Univ2002，14，1： | 1 |
| 5 | Neuroprotective effects of recombinant human erythropoietin on facial motoneurons after facial nerve injury in rats显示文摘BACKGROUND: Erythropoietin and recombinant human erythropoietin (rhEPO) inhibit apoptosis of motor neurons caused by spinal cord injury and brain damage in rats. However, it still remains to be shown whether rhEPO can protect facial motoneurons (FMNs) as well. OBJECTIVE: To test the neuroprotective effects of rhEPO on injured FMNs, as well as the influence on Caspase-3 expression. DESIGN, TIME AND SETTING: Randomized, controlled, animal experiment. This study was performed at the Central Laboratory of Basic Medical College, Chongqing Medical University from January to October 2007. MATERIALS: Seventy-five female SD rats, weighing 210–230 g. rhEPO injection was provided by Sansheng pharmaceuticals company, Shenyang City, Liaoning Province, China, and the License number was HMLN S20010001. METHODS: A total of 75 female rats were randomly divided into rhEPO treatment, control, and sham operation groups, with 25 rats in each group. Rat models of facial nerve injury were established in the rhEPO treatment group and the control group by crushing the main trunk of the left facial nerve. Surgical microscopic observation of the facial nerve damage displayed perineurial disruption. The left stylomastoid foramen of the sham operation group were only exposed, but without nerve injury. The rhEPO treatment group was treated with rhEPO (5 000 U/kg, i.p.) once following injury and once a day for two weeks. The control and sham operation groups were treated with the same dose of normal saline (i.p.), once following injury and once a day for two weeks. MAIN OUTCOME MEASURES: Rats were sacrificed 3, 7, 14, 21, and 28 days after injury, FMN survival after facial nerve injury was analyzed by Toluidine blue staining, and then survival ratios (L/R) were calculated. The number of apoptotic profiles in the injured FMNs were evaluated by TUNEL staining. Expression of Caspase-3 in the facial nucleus was detected by immunohistochemistry methods. RESULTS: A total of 75 rats were included in the final analysis. FMN survival ratios, both in rhEPO treatment group and control group, decreased gradually between seven and 28 days; however, FMN survival ratios were significantly greater in the rhEPO treatment group compared to the control group (P < 0.05). No TUNEL-positive cells were observed three days after injury in the rhEPO treatment and control groups; however, by seven days after injury, apoptotic cells were observed and peaked by 14 days in the control group. Between seven and 21 days, apoptotic cell numbers were significantly lower in the rhEPO treatment group compared to the control group (P < 0.05). The expression of Caspase-3 increased three days after injury and peaked at 14 days in the control group. Nevertheless, Caspase-3 expression was significantly lower in the rhEPO treatment group compared to the control group at each time point (P < 0.05). CONCLUSION: Treatment with rhEPO can effectively protect facial motoneurons by reducing expression of Caspase-3 and inhibiting apoptosis. | Yubing Dai Wenlong Luo Hongjiang Chen Jianghua Nie Li Fang Xiaofei Lai Jingjing Li | 2008 | Neural Regeneration Research2008，3，5： | 0 |
| 6 | Impacts of Microalloying Elements on the Hardening β'‑Phase in Automotive AlMgSi Alloys显示文摘Microalloying elements play a crucial role in mechanical properties and phase stability of metallic alloys.In this work,we employ first-principles calculations and atomic-scale high-angle annular dark-field scanning transmission electron microscopy(HAADF-STEM)to find promising microalloying elements that will improve the stability and properties ofβ'/Al interface andβ'phase in Al–Mg-Si alloys.First,we define a substitution energy for evaluating the stability ofβ'phase andβ'/Al interface with microalloying elements doped.Then,experiments of HAADF-STEM imaging are carried out to verify the calculational results.Next,using the most stable structures doped with microalloying elements,the mechanical properties of theβ'bulk and theβ'/Al interface were calculated and analyzed.At last,we have figured out the effects of all considered microalloying elements and obtained a rule that the stable occupancy of solute atoms is related to their own radius and the radius of Mg,Si,and Al.These findings will provide some theoretical basis for future microalloying strategies of Al–Mg-Si alloys. | Zhaoqun Chen Yuxiang Lai Linghong Liu Ziran Liu Jianghua Chen | 2023 | Acta Metallurgica Sinica(English Letters)2023，36，3： | 0 |
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