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Expression of p57^(kip2), Rb protein and PCNA and their relationships with clinicopathology in human pancreatic cancer

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World Journal of Gastroenterology 2003年第2期9卷 377-380页

作者： Hui Yue Yan-Li Na Xin-Li Feng Shu-Ren Ma fu-lin Song Bo yang Department of Gastroenterology and Pathology, General Hospital of Shenyang Military Region, Shenyang 110016, Liaoning Province, China Department of Gastroenterology General Hospital of Shenyang Military Region Shenyang 110016 Liaoning Province China. yh12070430@***

AIM: To investigate the effects of inhibiting factor of cellcycle regulation p57kip2, retinoblastinoma protein (Rb protein)and proliferating cell nuclear antigen (PCNA) in the genesisand progression of human pancreatic ***: The expression of p57kip2, Rb protein and PCNAin tumor tissues and adjacent tissues of 32 patients withpancreatic cancer was detected with SP ***: p57kip2 protein positive-expression rate in tumortissues of pancreatic cancer was 46.9 %, which was lowerthan that in adjacent pancreatic tissues (75.0 %) (x2=5.317,P＜0.05), p57kip2 protein positive-expression correlatedsignificantly with tumor cell differentiation (well-differentiationversus moderate or low-differentiation, P＜0.05) but did notcorrelate significantly with lymph node metastasis (lymph nodemetastasis versus non-lymph node metastasis, P＞0.05); Rbgene protein positive-expression rate in tumor tissues was50.0 %, which was also lower than that in adjacent pancreatictissues (78.1%) (x2=5.497, P＜0.05); PCNA positive-expression rate was 71.9 %, being higher than that inadjacent pancreatic tissues (43.8 %) (x2=5.189, P＜0.05),PCNA positive-expression also correlated significantly withtumor cell differentiation and lymph node metastasis (well-differentiation versus moderate or low- differentiation, lymphnode metastasis versus non-lymph node metastasis, P＜0.05).Rb protein positive-expression rate in the tumor tissues ofp57kip2 protein positive-expression group was 53.3 %; andRb protein positive-expression rate in the tumor tissues ofp57kip2 protein negative-expression group was 47.1%. Therewas no significant relationship between the two groups(r=0.16507, P＞0.05).CONCLUSION: The decreased expression of p57kip2, Rbprotein or over-expression of PCNA protein might contributeto the genesis or progression of pancreatic cancer, p57kip2,Rb protein and PCNA may play an important role in genesisand progression of pancreatic cancer.

关键词：胰腺癌临床病理学 p57^kip2 Rb蛋白增殖细胞核抗原

Distribution and geochemical significance of phenylphenanthrenes and their isomers in selected oils and rock extracts from the Tarim Basin,NW China

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Petroleum Science 2016年第2期13卷 183-191页

作者： Shao-Ying Huang Mei-Jun Li Ke Zhang T.-G.Wang Zhong-Yao Xiao Rong-Hui Fang Bao-Shou Zhang Dao-Wei Wang Qing Zhao fu-lin yang Research Institute of Petroleum Exploration and Development Tarim Oilfield CompanyPetroChina State Key Laboratory of Petroleum Resources and Prospecting College of GeosciencesChina University of Petroleum

Twenty-two oil samples and eight source rock samples collected from the Tarim Basin, NW China were geochemically analyzed to investigate the occurrence and distribution of phenylphenanthrene （PhP）, phenylanthracene （PhA）, and binaphthyl （BIN） isomers and methylphenanthrene （MP） isomers in oils and rock extracts with different deposi- tional environments. Phenylphenanthrenes are present in significant abundance in Mesozoic lacustrine mudstones and related oils. The relative concentrations of PhPs are quite low or below detection limit by routine gas chromatogxaphy-mass spectrometry （GC-MS） in Ordovician oils derived from marine carbonates. The ratio of 3-PhP/3-MP was used in this study to describe the relative abundance of phenylphenanthrenes to their alkylated counterparts--methylphenanthrenes. The Ordovician oils in the Tabei Uplift have quite low 3-PhP/3-MP ratios （〈0.10）, indicating their marine carbonate origin, associating with low Pr/Ph ratios （pristane/phytane）, high ADBT/ ADBF values （relative abundance of alkylated dibenzothiophenes to alkylated dibenzofurans）, low C30 diahopane/C3o hopane ratios, and low Ts/（Ts ＋ Tm）（18α-22, 29, 30-trisnorneohopane/（18α-22, 29, 30-trisnorneohopane ＋ 17α-22, 29, 30-trisnorhopane）） values. In contrast, the oils from Mesozoic and Paleogene sandstone reservoirs and related Mesozoic lacustrine mudstones have relatively higher 3-PhP/3-MP ratios （〉0.10）, associating with high Pr/Ph, low ADBT/ ADBF, high Ts/（Ts ＋ Tm）, and C30 diahopane/C30 hopane ratios. Therefore, the occurrence of significant amounts of phenylphenanthrenes in oils typically indicates that the organic matter of the source rocks was deposited in a suboxic envi- ronment with mudstone deposition. The phenylphenanthrenes may be effective molecular markers, indicating depositional environment and lithology of source rocks.

关键词： Phenylphenanthrene Methylphenanthrene Depositional environment Source rock

Bidirectional regulation of the brain-gut-microbiota axis following traumatic brain injury

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Neural Regeneration Research 2025年第8期20卷 2153-2168页

作者： Xinyu You lin Niu Jiafeng fu Shining Ge Jiangwei Shi Yanjun Zhang Pengwei Zhuang National Key Laboratory of Chinese Medicine Modernization Tianjin University of Traditional Chinese MedicineTianjinChina Haihe Laboratory of Modern Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjinChina First Teaching Hospital of Tianjin University of Traditional Chinese Medicine TianjinChina National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion TianjinChina

Traumatic brain injury is a prevalent disorder of the central nervous *** addition to primary brain parenchymal damage,the enduring biological consequences of traumatic brain injury pose long-term risks for patients with traumatic brain injury;however,the underlying pathogenesis remains unclear,and effective intervention methods are *** dysfunction is a significant consequence of traumatic brain *** the most densely innervated peripheral tissue in the body,the gut possesses multiple pathways for the establishment of a bidirectional“brain-gut axis”with the central nervous *** gut harbors a vast microbial community,and alterations of the gut niche contribute to the progression of traumatic brain injury and its unfavorable prognosis through neuronal,hormonal,and immune pathways.A comprehensive understanding of microbiota-mediated peripheral neuroimmunomodulation mechanisms is needed to enhance treatment strategies for traumatic brain injury and its associated *** comprehensively reviewed alterations in the gut microecological environment following traumatic brain injury,with a specific focus on the complex biological processes of peripheral nerves,immunity,and microbes triggered by traumatic brain injury,encompassing autonomic dysfunction,neuroendocrine disturbances,peripheral immunosuppression,increased intestinal barrier permeability,compromised responses of sensory nerves to microorganisms,and potential effector nuclei in the central nervous system influenced by gut ***,we reviewed the mechanisms underlying secondary biological injury and the dynamic pathological responses that occur following injury to enhance our current understanding of how peripheral pathways impact the outcome of patients with traumatic brain *** review aimed to propose a conceptual model for future risk assessment of central nervous system-related diseases while elucidating novel insights into the bidirectional effec

关键词： traumatic brain injury brain-gut-microbiome axis gut microbiota neuroimmune immunosuppression host defense vagal afferents bacterial infection dorsal root ganglia nociception neural circuitry

High-dense nanocrystalline W-based alloy prepared by hot isostatic pressing with uniform microstructure, ultrahigh hardness and good thermal stability

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Tungsten 2025年第1期7卷 120-136页

作者： Zao-Ming Wu lin He lin-Sen Ye Xiao-Feng yang Jia-Jia Zhang Hong-Bo Lei Institute of Materials China Academy of Engineering Physics

High-density uniform microstructure nanocrystalline W-10wt.% Cr-5wt.% Y（W-10Cr-5Y） alloy with an average grain size of 85 nm and a relative density of 99.8% was successfully prepared.W-Cr-Y alloys with different amounts of second-phase particles were prepared by high-energy ball milling and hot isostatic pressing *** effects of composition design,ball milling parameters,and sintering parameters on the microstructure of W-Cr-Y alloys were studied.A feasible technology for controlling the synthesis of high-density nanocrystalline W-based alloys has been *** microstructure analysis of nanocrystalline W-10Cr-5Y alloy shows that there are two types of doping in the second phase:intergranular doping and intragranular *** "uniform distribution YOx-rich particles" effectively suppresses the grain growth of W and leads to the formation of nanocrystalline W-10Cr-5Y alloy.W-10Cr-5Y has an ultra-high hardness,with a Vickers hardness of 1312±12 kgf·***-temperature annealing treatment shows that W-10Cr-5Y has good thermal stability at 1000 and1100℃,as demonstrated by the comparison of Vickers hardness and grain size between annealed and unannealed alloys.

关键词： Hot isostatic pressing Microstructure Nanocrystalline tungsten Thermal stability Vickers hardness

Engineering N3C vacancies in hierarchical porous carbon nitride nanosheets for room temperature ultradeep photocatalytic aerobic oxidative desulfurization

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Science China Chemistry 2025年

作者： Yina Nie Weijie yang Xin Wang Xiang Li Lele Wei Xiaolin Bai lin Liu Feng fu Jun Wan College of Chemistry & Chemical Engineering Research Institute of Comprehensive Energy Industrial Technology Shaanxi Key Laboratory of Chemical Reaction Engineering Yan'an University Anhui Engineering Research Center of Carbon Neutrality College of Chemistry and Materials Science Anhui Normal University

The production of ultra-low sulfur clean fuels holds global significance for improving energy efficiency and reducing environmental pollution. Photocatalytic aerobic oxidative desulfurization（PODS） offers an attractive approach to efficiently remove refractory heterocyclic aromatic sulfur compounds under mild conditions. However, the sluggish charge dynamics,insufficient molecule activation, and slow mass transfer within photocatalysts restrict the overall desulfurization efficiency,hindering the widespread application of this technology. Herein, we developed a defective g-C3N4（M1U3CN） photocatalyst with bridged N3Cvacancies and hierarchical porous structures to address these limitations. This catalyst not only demonstrates outstanding dibenzothiophene（DBT） removal efficiency of 99.6% for model oil with high conversion and selectivity but also achieves complete sulfur removal from gasoline as well as 96.7% sulfur removal for distilled diesel at room temperature,successfully achieving ultradeep aerobic oxidative desulfurization. The introduction of rich N3Cvacancies and abundant micromeso-macroporous distribution in M1U3CN enhances kinetic efficiencies by promoting charge carrier separation, mass transfer,and molecular activation simultaneously; resulting in exceptional PODS performance. This work provides a collaborative strategy to overcome kinetic challenges in aerobic oxidative desulfurization via defect and structural engineering of the catalyst.

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聚(1-氯-2-苯基乙炔)衍生物研究进展

高分子学报 2021年第8期52卷 911-919,I0002页

作者：杨富麟张洁孙景志唐本忠浙江大学高分子科学与工程学系教育部高分子合成与功能构造重点实验室杭州310027 香港中文大学(深圳)理工学院分子聚集体科学实验室深圳518172

双取代乙炔聚合物在小分子气体渗透与分离、发光弹性体、偏振荧光发射等领域有着突出的表现,成为聚乙炔研究领域的主流方向,聚(1-氯-2-苯基乙炔)衍生物是其中的一个特殊品种,对该类聚合物的聚合反应催化剂、聚合反应机理的深入研究对于... 详细信息

双取代乙炔聚合物在小分子气体渗透与分离、发光弹性体、偏振荧光发射等领域有着突出的表现,成为聚乙炔研究领域的主流方向,聚(1-氯-2-苯基乙炔)衍生物是其中的一个特殊品种,对该类聚合物的聚合反应催化剂、聚合反应机理的深入研究对于发展功能性双取代乙炔聚合物具有重要意义.本文简要回顾聚(1-氯-2-苯基乙炔)衍生物合成的发展历程,通过典型案例分析催化剂体系的演进过程中研究者们解决的一系列科学问题,总结催化剂体系、推拉电子取代基对聚合反应的影响,同时沿着超高透气性聚(双取代乙炔)研究及其在气体分离领域中的应用探索的发展脉络,指出该领域在催化剂研制、反应路线设计等方面的关键问题和可能解决方案,为制备具有先进功能的聚(双取代乙炔)提供了新思路.

关键词：聚(双取代乙炔) 1-氯-2-苯基乙炔 Pd-基复合催化剂本征微孔聚合物气体透过性

Reducing the measurement errors in nonadiabatic holonomic quantum computers

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 64-70页

作者： Guo-fu Xu Department of Physics Shandong University

Nonadiabatic holonomic quantum computers serve as the physical platform for nonadiabatic holonomic quantum *** quantum computation has entered the noisy intermediate-scale era, building accurate intermediate-scale nonadiabatic holonomic quantum computers is clearly necessary. Given that measurements are the sole means of extracting information, they play an indispensable role in nonadiabatic holonomic quantum computers. Accordingly, developing methods to reduce measurement errors in nonadiabatic holonomic quantum computers is of great importance. However, while much attention has been given to the research on nonadiabatic holonomic gates, the research on reducing measurement errors in nonadiabatic holonomic quantum computers is severely lacking. In this study, we propose a measurement error reduction method tailored for intermediate-scale nonadiabatic holonomic quantum computers. The reason we say this is because our method can not only reduce the measurement errors in the computer but also be useful in mitigating errors originating from nonadiabatic holonomic gates. Given these features,our method significantly advances the construction of accurate intermediate-scale nonadiabatic holonomic quantum computers.

关键词： quantum holonomy quantum computation measurement errors

Hsa-miR-214-3p inhibits breast cancer cell growth and improves the tumor immune microenvironment by downregulating B7H3

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Oncology Research 2025年第1期33卷 103-121页

作者： YAN LU KANG WANG YUANHONG PENG MENG CHEN lin ZHONG LUJI HUANG fu CHENG XINDAN SHENG XIN yang MANZHAO OUyang GEORGE A.CAlin ZHIWEI HE China-America Cancer Research Institute Guangdong Medical UniversityDongguan523808China GCP Center Shunde HospitalSouthern Medical University(The First People’s Hospital of Shunde Foshan)Shunde528300China Department of Gastrointestinal Surgery Shunde HospitalSouthern Medical University(The First People’s Hospital of Shunde Foshan)Shunde528300China The Second School of Clinical Medicine Southern Medical UniversityGuangzhou510080China Department of Translational Molecular Pathology The University of Texas MD Anderson Cancer CenterHoustonTX 77030USA Department of Oncology Shunde HospitalSouthern Medical University(The First People’s Hospital of Shunde Foshan)Shunde528300China

Background:Immune checkpoint inhibitors play an important role in the treatment of solid tumors,but the currently used immune checkpoint inhibitors targeting programmed cell death-1(PD-1),programmed cell death ligand-1(PD-L1),and cytotoxic T-lymphocyte antigen-4(CTLA-4)show limited clinical efficacy in many breast cancers.B7H3 has been widely reported as an immunosuppressive molecule,but its immunological function in breast cancer patients remains ***:We analyzed the expression of B7H3 in breast cancer samples using data from the Cancer Genome Atlas Program(TCGA)and the Gene Expression Omnibus(GEO)*** were selected using the TarBase,miRTarBase,and miRBase *** regulatory role of the microRNA hsa-miR-214-3p on B7H3 was investigated through dual-luciferase reporter assays,which identified the specific action sites of *** expression levels of B7H3 and hsa-miR-214-3p in human breast cancer tissues and adjacent normal tissues were quantified using Western blotting and quantitative PCR(qPCR).In vitro experiments were performed to observe the effects of modulating the expression of B7H3 or hsa-miR-214-3p on breast cancer cell proliferation and ***,the regulatory impact of hsa-miR-214-3p on B7H3 was ***-linked immunosorbent assays(ELISA)and flow cytometry were employed to assess the effects of co-cultured breast cancer cells and normal human peripheral blood mononuclear cells(PBMCs)on immune cells and associated ***:In breast cancer tissues,the expression level of B7H3 is inversely correlated with that of hsa-miR-214-3p,as well as with the regulatory effects on breast cancercell ***-miR-214-3p was found to inhibit breast cancer cell growth by downregulating ***,our research identified,for the first time,two binding sites for hsa-miR-214-3p on the 3’UTR of B7H3,both of which exert similar effects ***-culture experiments revealed that hsamiR-214-3p

关键词： Breast cancer B7H3 Hsa-miR-214-3p Immunotherapy

“Zero‑Strain” NiNb_(2)O_(6) Fibers for All‑Climate Lithium Storage

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Nano-Micro Letters 2025年第1期17卷 348-360页

作者： Yan Zhao Qiang Yuan Liting yang Guisheng Liang Yifeng Cheng Limin Wu Chunfu lin Renchao Che College of Physics Donghua UniversityShanghai 201620People’s Republic of China School of Materials Science and Engineering Institute of Materials for Energy and EnvironmentQingdao UniversityQingdao 266071People’s Republic of China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Zhejiang Laboratory Hangzhou 311100People’s Republic of China Inner Mongolia University Hohhot 010021People’s Republic of China

Niobates are promising all-climate Li^(+)-storage anode material due to their fast charge transport,large specific capacities,and resistance to electrolyte ***,their moderate unit-cellvolume expansion(generally 5%–10%)during Li^(+)storage causes unsatisfactory long-term ***,“zero-strain”NiNb_(2)O_(6) fibers are explored as a new anode material with comprehensively good electrochemical *** Li^(+)storage,the expansion of electrochemical inactive NiO_(6) octahedra almost fully offsets the shrinkage of active NbO_(6) octahedra through reversible O *** superior volume-accommodation capability of the NiO_(6) layers guarantees the“zero-strain”behavior of NiNb_(2)O_(6) in a broad temperature range(0.53%//0.51%//0.74%at 25//−10//60℃),leading to the excellent cyclability of the NiNb_(2)O_(6) fibers(92.8%//99.2%//91.1%capacity retention after 1000//2000//1000 cycles at 10C and 25//−10//60℃).This NiNb_(2)O_(6) material further exhibits a large reversible capacity(300//184//318 mAh g−1 at 0.1C and 25//−10//60℃)and outstanding rate performance(10 to 0.5C capacity percentage of 64.3%//50.0%//65.4%at 25//−10//60℃).Therefore,the NiNb_(2)O_(6) fibers are especially suitable for large-capacity,fast-charging,long-life,and all-climate lithium-ion batteries.

关键词： NiNb_(2)O_(6)porous fiber “Zero-strain”mechanism Electrochemical property Harsh-temperature operation Operando characterization