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| 1 | The p53-induced lincRNA-p21 derails somatic cell reprogramming by sustaining H3K9me3 and CpG methylation at pluripotency gene promoters显示文摘最近的研究在众多的生物过程增加了我们长 noncoding RNA (lncRNAs ) 的理解,但是很少在体的房间 reprogramming 检验了他们的角色。通过表示介绍并且功能的屏蔽,我们鉴别了大 intergenic noncoding RNA p21 (lincRNA-p21 ) 损害 reprogramming。尤其是, lincRNA-p21 被 p53 导致,但是不在 reprogramming 支持 apoptosis 或房间老朽。相反, lincRNA-p21 与 H3K9 methyltransferase SETDB1 和维护 DNA methyltransferase DNMT1 联系,它被 RNA 有约束力的蛋白质 HNRNPK 便于。因而, lincRNA-p21 由在 pluripotency 基因倡导者支撑 H3K9me3 或 CpG methylation 阻止 reprogramming。我们的结果在 reprogramming 提供卓见进 lncRNAs 的角色并且建立在 p53 和 heterochromatin 规定之间的一个新奇连接。 | Xichen Bao Haitao Wu Xihua Zhu Xiangpeng Guo Andrew P Hutchins Zhiwei Luo Hong Song Yongqiang Chen Keyu Lai Menghui Yin Lingxiao Xu Liang Zhou Jiekai Chen Dongye Wang Baoming Qin Jon Frampton Hung-Fat Tse Duanqing Pei Huating Wang Biliang Zhang Miguel A Esteban | 2015 | Cell Research2015，25，1： | 21 |
| 2 | Phosphorylation inhibition of protein-tyrosine phosphatase 1B tyrosine-152 induces bone regeneration coupled with angiogenesis for bone tissue engineering显示文摘A close relationship has been reported to exist between cadherin-mediated cell-cell adhesion and integrin-mediated cell mobility,and protein tyrosine phosphatase 1B(PTP1B)may be involved in maintaining this homeostasis.The stable residence of mesenchymal stem cells(MSCs)and endothelial cells(ECs)in their niches is closely related to the regulation of PTP1B.However,the exact role of the departure of MSCs and ECs from their niches during bone regeneration is largely unknown.Here,we show that the phosphorylation state of PTP1B tyrosine-152(Y152)plays a central role in initiating the departure of these cells from their niches and their subsequent recruitment to bone defects.Based on our previous design of a PTP1B Y152 region-mimicking peptide(152RM)that significantly inhibits the phosphorylation of PTP1B Y152,further investigations revealed that 152RM enhanced cell migration partly via integrinαvβ3 and promoted MSCs osteogenic differentiation partly by inhibiting ATF3.Moreover,152RM induced type H vessels formation by activating Notch signaling.Demineralized bone matrix(DBM)scaffolds were fabricated with mesoporous silica nanoparticles(MSNs),and 152RM was then loaded onto them by electrostatic adsorption.The DBM-MSN/152RM scaffolds were demonstrated to induce bone formation and type H vessels expansion in vivo.In conclusion,our data reveal that 152RM contributes to bone formation by coupling osteogenesis with angiogenesis,which may offer a potential therapeutic strategy for bone defects. | Yong Tang Keyu Luo Yin Chen Yueqi Chen Rui Zhou Can Chen Jiulin Tan Moyuan Deng Qijie Dai Xueke Yu Jian Liu Chengmin Zhang Wenjie Wu Jianzhong Xu Shiwu Dong Fei Luo | 2021 | Bioactive Materials2021，6，7： | 3 |
| 3 | Evaluation of 40^Ar/39^Ar Geochronology of Authigenic Illites in Determining Hydrocarbon Charge Timing: A Case Study from the Silurian Bituminous Sandstone Reservoirs, Tarim Basin, China显示文摘The Silurian bituminous sandstones(SBS) in the Tarim Basin, China are important basinwide reservoirs with an estimated area of approximately 249000 km2. We investigated the ages of authigenic illites in the SBS reservoirs and constrained their formation timing by using the ^(40)Ar/^(39)Ar step wise heating method. The age spectra, ^(39)Ar recoil loss and their controlling factors were investigated systematically. The ^(40)Ar/^(39)Ar ages were compared with the conventional K/Ar ages of identical clay fractions. The clay in the SBS reservoirs is dominated by orderly mixed-layer illite/smectite(I/S) with 5%–30% smectite layers. The I/S minerals morphology comprises primarily honeycomb, short filamentous and curved-lath particles, characteristic of authigenic illites. The unencapsulated ^(40)Ar/^(39)Ar total gas ages(UTGA) of the authigenic illites range from 188.56 ± 6.20 Ma to 491.86 ± 27.68 Ma, which are 7% to 103% older than the corresponding K/Ar ages of 124.87 ± 1.11 Ma to 383.45 ± 2.80 Ma, respectively. The K-Ar ages indicate multistage accumulations with distinct distribution patterns in the Tarim Basin: older(late Caledonian-early Hercynian) around the basin margin, younger(late Hercynian) in the basin centre, and the youngest(middle to late Yanshanian) in the Ha-6 well-block, central area of the North Uplift. The age difference is believed to have been caused by the ^(39)Ar recoil loss during the irradiation process. Compared with the K/Ar ages, the estimated ^(39)Ar recoil losses in this study are in the range from 7% to 51%. The ^(39)Ar recoil loss appears to increase not only with the decreasing particle sizes of the I/S, but also with increasing percentage of smectite layers(IR) of the I/S, and smectite layer content(SLC) of the samples. We conclude that due to significant ^(39)Ar recoil losses, UTGA may not offer any meaningful geological ages of the authigenic illite formation in the SBS and thus can not be used to represent the hydrocarbon charge timing. ^(39)Ar recoil losses during ^(40)Ar/^(39)Ar dating can not be neglected when dating fine authigenic illite, especially when the ordered mixed-layer I/S containing small amount of smectite layers(IR<30%) in the reservoir formations. Compared with the unencapsulated Ar-Ar method, the conventional K-Ar method is less complicated, more accurate and reliable in dating authigenic illites in petroleum reservoirs. | ZHANG Youyu LIU Keyu LUO Xiuquan | 2016 | Acta Geologica Sinica(English Edition)2016，90，2： | 1 |
| 4 | Impact of chlorites on the wettability of tight oil sandstone reservoirs in the Upper Triassic Yanchang Formation,Ordos Basin,China显示文摘Wettability is an essential property of reservoirs that is of great importance for enhancing oil recovery(EOR)and oil migration.The wettability of reservoirs is generally believed to be strongly affected by mineral compositions but it is not always the case.An integrated study of petrography and wettability was carried out to determine the impact of chlorite minerals on the wettability of the sandstone reservoirs in the Upper Triassic Yanchang Formation.Chlorites are found to be commonly present in the reservoir sandstones as detrital grains,rim-shaped cements,and biotite-chloritized forms with the pore peripheries being largely coated by chlorite,which is the main mineral in direct contact with pores.At pore scale,the wetting state of chlorites can either be oil-wet or water-wet in the tight sandstone reservoirs depending on wettability alteration by oil charge.Chlorites in contact with pores occupy a large of proportions of oil-wet pore walls and are crucial for the formation of oil-wetting state of reservoir sandstones.At core scale,the contents of chlorites in direct contact with pores do not correlate well with the AmottHarvey index due to other factors such as heterogeneity,oil-bearing degrees of samples. | Zhongnan WANG Xiaorong LUO Keyu LIU Yuchen FAN Xiangzeng WANG | 2021 | Science China Earth Sciences2021，64，6： | 1 |
| 5 | External rectal prolapse:abdominal or perineal repair for men?A retrospective cohort study显示文摘Background:External rectal prolapse is a relatively rare disease,in which male patients account for a minority.The selection of abdominal repair or perineal repair for male patients has rarely been investigated.Methods:Fifty-one male patients receiving abdominal repair(laparoscopic ventral rectopexy)or perineal repair(Delorme or Altemeier procedures)at the Sixth Affiliated Hospital of Sun Yat-sen University(Guangzhou,China)between March 2013 and September 2019 were retrospectively analysed.We compared the recurrence,complication rate,post-operative defecation disorder,length of stay,and quality of life between the abdominal and perineal groups.Results:Of the 51 patients,45 had a complete follow-up,with a median of 48.5 months(range,22.8–101.8 months).A total of 35 patients were under age 40 years.The complication rate associated with abdominal repair was less than that associated with perineal repair(0%vs 20.7%,P=0.031)and the recurrence rate was also lower(9.5%vs 41.7%,P=0.018).Multivariate analysis showed that perineal repair(odds ratio,9.827;95%confidence interval,1.296–74.50;P=0.027)might be a risk factor for recurrence.Moreover,only perineal repair significantly improved post-operative constipation status(preoperative vs post-operative,72.4%vs 25.0%,P=0.001).There was no reported mortality in either of the groups.No patient’s sexual function was affected by the surgery.Conclusions:Both surgical approaches were safe in men.Compared with perineal repair,the complication rate and recurrence rate for abdominal repair were lower.However,perineal repair was better able to correct constipation. | Bang Hu Qi Zou Zhenyu Xian Dan Su Chao Liu Li Lu Minyi Luo Zixu Chen Keyu Cai Han Gao Hui Peng Wuteng Cao Donglin Ren | 2022 | Gastroenterology Report2022，10，1： | 0 |
| 6 | Studies on Growth-promoting Function and Mechanism of Extract from Grape Seed and Sweet Wormwood on Monopterus albus显示文摘[Objectives]The effect and mechanism of grape seed and sweet wormwood extract on growth of Monopterus albus were studied.[Methods]1 500 healthy M.albus with average mass of 23.8 g/tail were randomly divided into 5 groups.The control group was fed with basal diet and the experimental groups were fed with 10,20,30 and 40 g/kg of grape seed and sweet wormwood extract,respectively.The growth performance of the fish was measured after 60 d of feeding at 23-28℃.[Results]The addition of grape seed and sweet wormwood extract in basal diet could increase the body weight gain rate,specific growth rate and protein efficiency,and decrease the feed coefficient.The activity of digestive enzymes,glutamic-oxaloacetic transaminase,glutamic-pyruvic transaminase,blood alkaline phosphatase and serum total protein was increased,and the contents of blood glucose and triglyceride were decreased.Compared with the control group,the above indexes showed significant difference(P<0.05)when the dosage was 20 and 30 g/kg(P<0.05).The difference was not significant(P>0.05)when the dosage was 10 and 40 g/kg(P>0.05).[Conclusions]As a feed additive,the plant extract from grape seed and sweet wormwood could increase digestive enzyme activity and regulate blood biochemical parameters of fish body.It had the function of promoting the digestion and absorption,enhancing the metabolic activity of 3 main nutrients,and hastening the growth of fish. | Guangzhong HUANG Zhongbo LI Shimin LUO Xu YANG Keyu XIAO Hui HU Peirong XIE | 2019 | Agricultural Biotechnology2019，8，4： | 0 |
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