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| 1 | Expression of circulating microRNA-20a and let-7a in esophageal squamous cell carcinoma显示文摘AIM: To investigate the expressions of micro RNA-20a(mi R-20a) and let-7a in esophageal squamous cell carcinoma(ESCC) and their diagnostic value. METHODS: Seventy patients with ESCC and 40 healthy subjects were enrolled to investigate the expression of mi R-20 a and let-7a using quantitative real-time PCR. The expression of mi R-20 a and let-7a was compared between ESCC patients and healthy subjects. The plasma levels of mi R-20 a and let-7a in relation to patient clinicopathologic parameters, the receiver operating characteristic(ROC) curve, and the sensitivity and specificity of mi R-20 a and let-7a in ESCC diagnosis were analyzed.RESULTS: Plasma levels of mi R-20 a were significantly higher in ESCC patients than in healthy controls, and plasma levels of let-7 were lower in ESCC patients than in healthy controls(both P < 0.05). The area under the ROC curve of mi R-20 a was 0.767(95%CI: 0.677-0.857; P < 0.001), when the cut-off value was set at 4.77, the sensitivity and specificity were 64.3% and 75.0%, respectively. The area under the ROC curve of let-7a was 0.829(95%CI: 0.754-0.904; P < 0.001), when the cut-off value was set at 6.22, the sensitivity and specificity were 74.3% and 85.0%, respectively. Thus, the sensitivity and specificity of let-7a were higher than those of mi R-20 a. The median relative plasma expression of let-7a in clinical stage Ⅲ/Ⅳ(0.24) was lower than that in stage Ⅰ/Ⅱ(0.42), while the expression of mi R-20 a according to stage was not statistically different. The expressions of mi R-20 a and let-7a were not related to gender, age, tumor diameter, tumor grade, or pathologic stage.CONCLUSION: Plasma mi R-20 a and let-7a levels are significantly altered in patients with ESCC and can be used as potential biomarkers in the diagnosis of ESCC. | Fu-Cheng He Wei-Wei Meng Yun-Hui Qu Ming-Xia Zhou Jing He Pin Lv Liang Ming | 2015 | World Journal of Gastroenterology2015，21，15： | 6 |
| 2 | Polymorphism in the upstream regulatory region of human papilloma virus type 16 from the cervical cancer biopsies in Xinjiang Uygur women显示文摘To investigate the mutations in the upstream regulatory region (URR) of human papillomavirus type 16 (HPV-16) from the cervical cancer biopsies in Xinjiang Uygur women and its relationship to the high incidence of cervical cancer in the southern Xinjiang, the tissue DNA was extracted from the cervical cancer biopsies, and the URR segment of HPV-16 DNA was amplified, sequenced and analyzed. Thereafter, the polymorphism of URR in HPV-16 was then analyzed. It was demonstrated that the positive rate detected for the presence of URR in HPV-16 was 89.47% (17/19). Compared with the previously published sequence in URR of prototype HPV-16, some mutations were detected in the sequence of URR. The mutations in 17 URR fragments of HPV-16 could be divided into 11 patterns (XJU-1 to XJU-11) at nucleic acid level, in which each of XJU-1 and XJU-4 accounted for 23.53% (4/17), and other patterns of mutation accounted for 5.88% (1/17) . In comparison with the URR of prototype HPV-16, the DNA identity of these patterns was 98.50%-99.68% . In these 17 URR fragments, two point mutations occurred at position 7192 (G to T) and position 7520 (G to A) and they appeared to be constant in Xinjiang area. These two mutations were ubiquitous in the Asia-American type and conferred strong infection activity and carcinogenicity of this virus. In addition, the mutations at position 7729 (A to C), position 7843 (A to G) and position 7792 (C to T) could enhance its transcription activity considerably. It is concluded that some mutations occur in URR gene of HPV-16 in the cervical cancer biopsies taken from Uygur women in Xinjiang area, suggesting that certain relationship exists among the mutations in URR of HPV-16, the phylogeny of HPV-16 and the high incidence of cervical cancer in southern part of Xinjiang area. | MENG YU ZHENG HAI MA YAN PIN WANG XI DAN RE FU CHUN ZHANG | 2006 | Journal of Microbiology and Immunology2006，4，3： | 4 |
| 3 | Network pharmacology used to decode potential active ingredients in Ferula assafoetida and mechanisms for the application to Alzheimer’s disease显示文摘Background:Alzheimer’s disease(AD)is a neurodegenerative disease that primarily manifests as progressive memory loss and cognitive impairment.Traditional herbal medicines may be helpful in the discovery of new anti-AD drugs.Studies have shown that Ferula assafoetida has neuroprotective and memory-enhancing effects,which may be beneficial for the treatment of AD.However,the combination of active ingredients and their mechanisms remain unclear.Therefore,we aimed to identify potential active ingredients in F.assafoetida and their mechanisms of action against AD by using network pharmacology.Methods:In our study,an integrated network pharmacological approach,that included adsorption,distribution,metabolism and excretion screening,target identification,network construction,topological analysis,gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis,and molecular docking,was used to predict the pharmacological material basis and potential mechanisms through which these ingredients may treat and prevent AD.Results:The results indicated that 12 key active ingredients,obtained by topological analysis(including farnesiferol a,conferol,farnesiferol b,ferulic acid,etc.),may be the primary pharmacological components that may ameliorate AD.The 2 key significant pathways identified are the cholinergic synapse signaling pathway(critical targets include ACHE,CHRM1,CHRM2,MAPK1,PIK3CA,PIK3CB,PIK3CD,and PIK3CG)and the AD signaling pathway(critical targets include APP,BACE1,GSK3B,MAPK1,NCSTN,NOS1,PSEN1).These critical targets are closely related to the regulation of three typical pathological features of AD[central nervous system(CNS)cholinergic hypofunction,amyloid-β(Aβ)plaques,and hyperphosphorylated tau proteins].Finally,14 critical targets in the 2 key significant pathways were validated by molecular docking analysis.Conclusion:F.assafoetida may be effective for alleviating AD symptoms,through multi-component,multi-target,and multi-pathway synergistic effects,associated with the multiple pathogenesis hypotheses of AD.Our study may provide certain clues for the further development and utilization of this natural herbal medicine. | Meng Xu Lili Zhang Pin Li Chunguo Wang Yuanyuan Shi | 2020 | Journal of Traditional Chinese Medical Sciences2020，7，2： | 1 |
| 4 | Double-strand hydrolysis of DNA by a magnesium(II) complex with diethylenetriamine显示文摘 | Pin Yang Rui Ren Maolin Guo Aixin Song Xiangli Meng Caixia Yuan Qinghua Zhou Huili Chen Zhenhai Xiong Xiaoli Gao | 2004 | JBIC Journal of Biological Inorganic Chemistry2004，，4： | 1 |
| 5 | Enhancing the cycling stability of Na-ion batteries by bonding MoS2 on assembled carbon-based materials显示文摘Room temperature Na-ion batteries(SIBs) show great potential for use as renewable energy storage systems.However, the large-scale application of SIBs has been hindered by the lack of an ideal SIBs anode material. We synthesized MoS2 on carbonized graphene-chitosan(G-C) using the hydrothermal method. The strong interaction between the MoS2 and the G-C greatly improved the electron transport rate and maintained the structural stability of the electrode, which lead to both an excellent rate capability and long cycle stability. The G-C monolith was proven to enhance the electrical conductivity of the composites and served as a matrix for uniformly dispersing active MoS2 nanosheets(NSs), as well as being a buffer material to adapt to changes in volume during the cycle.Serving as an anode material for SIBs, the MoS2-G-C electrode showed good cycling stability(527.3mAh g-1 at100 m A g-1 after 200 cycles), excellent rate capability, and a long cycle life(439.1 m Ah g-1 at 1 A g-1 after 200 cycles). | Pin Song Jun Di Lixing Kang Manzhang Xu Bijun Tang Jun Xiong Jiewu Cui Qingsheng Zeng Jiadong Zhou Yongmin He Qundong Fu Juan Peng Shasha Guo Bo Lin Jingyu Zhang Peng Meng Zheng Liu | 2019 | Nano Materials Science2019，1，4： | 0 |
| 6 | Glutamine addiction and therapeutic strategies in pancreatic cancer显示文摘Pancreatic cancer remains one of the most lethal diseases worldwide owing to its late diagnosis,early metastasis,and poor prognosis.Because current therapeutic options are limited,there is an urgent need to investigate novel targeted treatment strategies.Pancreatic cancer faces significant metabolic challenges,principally hypoxia and nutrient deprivation,due to specific microenvironmental constraints,including an extensive desmoplastic stromal reaction.Pancreatic cancer cells have been shown to rewire their metabolism and energy production networks to support rapid survival and proliferation.Increased glucose uptake and glycolytic pathway activity during this process have been extensively described.However,growing evidence suggests that pancreatic cancer cells are glutamine addicted.As a nitrogen source,glutamine directly(or indirectly via glutamate conversion)contributes to many anabolic processes in pancreatic cancer,including amino acids,nucleobases,and hexosamine biosynthesis.It also plays an important role in redox homeostasis,and when converted toα-ketoglutarate,glutamine serves as an energy and anaplerotic carbon source,replenishing the tricarboxylic acid cycle intermediates.The present study aims to provide a comprehensive overview of glutamine metabolic reprogramming in pancreatic cancer,focusing on potential therapeutic approaches targeting glutamine metabolism in pancreatic cancer. | Lin-Lin Ren Tao Mao Pin Meng Li Zhang Hong-Yun Wei Zi-Bin Tian | 2023 | World Journal of Gastrointestinal Oncology2023，15，11： | 0 |
| 7 | Nevanlinna Class and Its Integral Representation or Factorization Theorem in Sector and Angular Domain显示文摘In this paper we give some sufficient conditions for analytic functions which are not identically zero and belong to Nevanlinna class in the sector and angular domain.Moreover,their integral expressions or factorization theorems are obtained. | Pin Hong LONG Shi Meng XU Chuan Qing XU | 2010 | Journal of Mathematical Research and Exposition2010，30，5： | 0 |
| 8 | Study on the interactions between anti-tumor metal complexes and mononucleotides using trans-[en2Os(h^2-H2)(CF3SO3)](CF3SO3) as a 1H NMR probe in a competitive mode显示文摘The interaction of several anti-tumor metal complexes with dGMP have been investigated using trans-[en2Os(η2-H2)]2+ as a 1H NMR probe in a competitive mode. Me2SnCl2, Bu2SnCl2, Et2Sn(phen)Cl2 and Et2SnCl2 can bind to dGMP mainly via phosphate; Cp2TiCl2 binds to dGMP mainly via phosphate and N7. The binding constant for (CH3)2SnCl2 binding to phos-phate of dGMP exceeds 2.71×104. The binding constant for Cp2TiCl2 to phosphate is even greater than that of Sn(IV). Cis-platin has high affinity for both N7 and phosphate, but mainly for N7. Binding of the probe to N7 of dGMP reduces the binding affinity for phosphate of the same dGMP molecule by a factor of 5 to 6. Much the same factor is expected to apply to other metals containing agents interacting with dGMP. | YANG Pin CHEN Huili FAN Yingfang YUE Lijun MENG Xiangli | 2005 | Science China Chemistry2005，48，3： | 0 |
| 9 | Synthesis,structure,and optical properties of manganese phthalocyanine thin films and nanostructures显示文摘Manganese phthalocyanine(MnPc) nanostructures with different morphologies were prepared on porous anodic alumina oxide(AAO) at different substrate temperature(T_S=50 ℃,80 ℃,120 ℃,180 ℃,240 ℃) in an organic molecular beam deposition(OMBD) system.The nanostructures morphologies were studied using scanning electron microscopy(SEM) and the results showed that the nanostructures morphologies could be modulated by the control of T_S,as a result,the continuous film was obtained at 50 ℃,whereas the nanorods(NRs),nanoribbons(NBs),nanowires(NWs),nanosheets(NSs) and nanoparticles(NPs) were facilely generated as T_S increased.At the same time,the density and the uniformity of the nanostructures decreased.The results of X-ray diffraction(XRD) indicated that only the(3-phase polymorph formed throughout the growth process irrelevant to the T_S.Additionally,the ultraviolet visible(UV-Vis) absorption spectra demonstrated that the main absorption bands of MnPc nanostructures showed a remarkable band broadening as the T_S was increased. | Lu Meng Kai Wang Yuyan Han Yi Yao Pin Gao Chao Huang Wenhua Zhang Faqiang Xu | 2017 | Progress in Natural Science:Materials International2017，27，3： | 0 |
| 10 | Polycephalomycetaceae,a new family of clavicipitoid fungi segregates from Ophiocordycipitaceae显示文摘Clavicipitoid fungi comprise three families,namely Clavicipitaceae,Cordycipitaceae,and Ophiocordycipitaceae.They are found worldwide and are specialized pathogens of invertebrate,plant and fungal hosts.Over the last decade,morphology-and phylogeny-based studies on clavicipitoid fungi have increased.The latter have revealed that Polycephalomyces,Perennicordyceps and Pleurocordyceps consistently cluster together.These genera are currently considered as members of Ophiocordycipitaceae.Nonetheless,information with regard to their diversity and ecology remains sparse.To fill this gap,we collected 29 fresh specimens from insect and fungal substrates from tropical and subtropical evergreen forests in Thailand and southwestern China.We performed detailed morphological analyses and constructed photoplates for all isolated fungi.We used extensive taxon sampling and a dataset comprising internal transcribed spacer gene region(ITS),small subunit ribosomal RNA gene region(SSU),large subunit rRNA gene region(LSU),translation elongation factor 1-alpha gene region(TEF-1α),RNA polymerase II largest subunit gene region(RPB1)and RNA polymerase II second largest subunit(RPB2)to infer order-,family and genus-level phylogenetic trees.Based on these biphasic analyses,we segregate Polycephalomyces,Perennicordyceps,and Pleurocordyceps from Ophiocordycipitaceae and introduce the new family Polycephalomycetaceae to accomodate these three genera.The majority of species in this family have a vast range of insect and fungal hosts.The sexual morph of Polycephalomycetaceae has stromatic ascomata,long stipes,thick peridium,and cylindrical secondary spores.The asexual morph is characterized by colonies on the host surface or synnemata with stipes on the host,one or two types of phialides,and cylindrical to fusiform conidia.We expand the number of taxa in the new family by introducing seven new species(Polycephalomyces albiramus,Perennicordyceps lutea,Pleurocordyceps parvicapitata,Pleurocordyceps lanceolatus,Pleurocordyceps nutansis,Pleurocordyceps heilongtanensis,Pleurocordyceps vitellina),nine new hosts,and one new combination(Perennicordyceps elaphomyceticola).The results herein hint at a high level of diversity for Polycephalomycetaceae.Future investigations focusing on obtaining additional collections and specimens from different geographical areas would help to reveal not only the extent of the group’s diversity,but also resolve its deeper phylogenetic placement. | Yuan‑Pin Xiao Yuan Bing Wang Kevin D.Hyde Gentekaki Eleni Jing‑zu Sun Yu Yang Juan Meng Hong Yu Ting‑Chi Wen | 2023 | Fungal Diversity2023，，3： | 0 |
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