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Synthesis and characterization of a new chromophor with acid/base-sensitive fluorescence emission

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Chinese Chemical Letters 2011年第9期22卷 1051-1054页

作者： Hai Guang Zhang Xu Tang Tao kao Shan Chen Chun Xue Yuan Shi Na Yan Min Hua Jiang College of Chemistry Science Qufu Normal University Qufu 273165 China State Key Laboratory of Crystal Materials Shandong University Jinan 250100 China School of Life Science Shandong University Jinan 250100 China

A new two-photon absorption compound, 2-{4-[（dicyanomethylidene-5,5-dimethylcyclohexl）vinyl]phenyl}imidazo[4,5- f][1,10]phenanthroline （DDVPIP）, was synthesized and characterized. The one-photon excited fluorescence （OPEF） and two- photon excited fluorescence （TPEF） of DDVP1P are sensitive to the acid/base of the solution, which are enhanced in basic solution but weakened in acidic solution. Charge-transfer （CT） states of DDVPIP were calculated through theory methods to explain its acid/ base-sensitive fluorescent properties.

关键词： Imidazo[4,5-f][ 1,10]phenanthroline Two-photon absorption Two-photon fluorescence

Single-stage anterior debridement and reconstruction with tantalum mesh cage for complicated infectious spondylitis

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World Journal of Orthopedics 2017年第9期8卷 710-718页

作者： Shih-Chieh Yang Hung-Shu Chen Yu-Hsien kao Yuan-Kun Tu Department of Orthopedic Surgery E-Da Hospital I-Shou University

AIM To evaluate the clinical and radiographic results of patients with complicated infectious spondylitis treated with single-stage anterior debridement and reconstruction using tantalum mesh cage(TaMC) followed by immediate *** Single-stage radical debridement and subsequent reconstruction with TaMC instead of autograft or allograft were performed to treat 20 patients with spinal deformity or instability due to complicated infectious spondylitis. Clinical outcomes were assessed by careful physical examination and regular serological tests to determine the infection control. In addition, the visual analog score(VAS), neurologic status, length of vertebral body reconstruction, and the correction of sagittal Cobb angle on radiography were recorded and compared before and after surgery. The conditions of the patients were evaluated based on the modified Brodsky's *** The average VAS score significantly decreased after the surgery(from 7.4 ± 0.8 to 3.3 ± 0.8, P < 0.001). The average Cobb angle correction was 14.9 degrees. The neurologic status was significantly improved after the surgery(P = 0.003). One patient experienced refractory infection and underwent additional debridement. Eighteen patients achieved good outcome based on the modified Brodsky's criteria and significant improvement after the surgery(P < 0.001). No implant breakage orTaMC dislodgement was found during at least 24 mo of *** Single-stage anterior debridement and reconstruction with TaMC followed by immediate instrumentation could be an alternative method to manage the patients with spinal deformity or instability due to complicated infectious spondylitis.

关键词： Anterior reconstruction Complicated infectious spondylitis Instrumentation Spinal deformity Tantalum mesh cage

High Order Harmonic A.C Oscillographic Chronopotentiometry

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Chinese Chemical Letters 1998年第3期9卷 291-294页

作者： Jian Bin ZHENG Ye Wei FU Hong GAO (H. kao)(Institute of Electroanalytical Chemistry,Northwest University,Xi’an,710069) Inst. of Electroanalytical Chemistry Northwest University Xi'an 710069 China

Applying Fourier transform technique to deduction of background and noise on dE/dt-t curve, a new electrochemical method, high order harmonic oscillographic chronopotentiometry is proposed in this paper.

关键词： A.C oscillographic chronopotentiometry high order harmonic fast Fourier transform

Rubus chingii Hu: an overview of botany, traditional uses,phytochemistry, and pharmacology

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Chinese Journal of Natural Medicines 2020年第6期18卷 401-416页

作者： SHENG Jia-Yun WANG Si-Qi LIU kao-Hua ZHU Bo ZHANG Qiao-Yan QIN Lu-Ping WU Jian-Jun School of Pharmacy Zhejiang Chinese Medical UniversityHangzhou 310053China

Rubus chingii Hu, a member of the rosaceae family, is extensively distributed in China and Japan. Its unripe fruits(Fupenzi in Chinese) have a long history of use as an herbal tonic in traditional Chinese medicine for treating various diseases commonly associated with kidney deficiency, and they are still in use today. Phytochemical investigations on the fruits and leaves of R. chingii indicate the presence of terpenoids, flavonoids, steroids, alkaloids, phenylpropanoids, phenolics, and organic acids. Extracts or active substances from this plant are reported to have various pharmacological properties, including antioxidant, anti-inflammatory, antitumor, antifungal, antithrombotic, antiosteoporotic, hypoglycemic, and central nervous system-regulating effects. This review provides up-to-date information on the botanical characterizations, traditional usages, chemical constituents, pharmacological activities, toxicity,and quality control of R. chingii. Possible directions for future research are also briefly proposed. This review aims to supply fundamental data for the further study of R. chingii and contribute to the development of its clinical use.

关键词： Rubus chingii Hu Botany Traditional uses Phytochemistry Pharmacology Review

Study of Nanomaterials under High Pressure

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Advances in Nanoparticles 2013年第4期2卷 350-357页

作者： Madan Singh Moruti kao Department of Physics and Electronics National University of Lesotho Roma Lesotho

A simple theory is proposed to predict the effect of pressure for study of volume expansion of nanomaterials. Different possible forms of equation of state are discussed with their correlations. Only two input parameters, namely, the bulk modulus and its first pressure derivative, are required for calculations. We have considered a wide variety of nanomaterials, such as, CdSe (4.2 nm), Fe-Cu (14 nm), y-Al2O3 (67 nm), y-Al2O3 (37 nm), Ni (20 nm), Fe (10 nm), CeO2 (cubic Fluorite phase) (15 nm), CeO2 (Orthorhombic Phase) (15 nm), CuO (24 nm) and TiO2 (rutile phase) (10 nm) to analyze the effect of pressure on them. The theoretical predictions for the given nanomaterials agree with the experimental results and the other theoretical models.

关键词： Equation of State Nanomaterials Murnaghan EOS

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Old Is Gold

The World of Chinese 2023年第3期 26-31页

作者： Kerina kao Molly Sun

From swing dance to 1920s fashion, cultures from a bygone era are making a comeback in China—not just in the big cities从:摆舞到古着, 中小城市正掀起一阵复古潮On a Saturday night in an industrial city in central China, a group of 30 youngsters in a bar are doing their best to recreate The Great Gatsby. Leather shoes tap and fringed flapper dresses sway in time to the rhythm of 1920s American jazz music while Lü Dongyuan,

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Modified preoperative score to predict disease-free survival for hepatocellular carcinoma patients with surgical resections

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World Journal of Hepatology 2022年第9期14卷 1778-1789页

作者： Yin Lai Jin-Chiao Lee hao-Chien Hung Yu-Chao Wang Chih-Hsien Cheng Tsung-Han Wu Chen-Fang Lee Ting-Jung Wu Hong-Shiue Chou Kun-Ming Chan Chen-Yao kao Wei-Chen Lee Department of General Surgery Chang-Gung Memorial HospitalChang-Gung University College of MedicineTaoyuan 333Taiwan Department of Special Education National University of TainanTainan 700Taiwan

BACKGROUND No prognostic models specific to hepatocellular carcinoma patients receiving surgical resection have been considered strong and convincing enough for survival prediction thus far,and there are no models including only preoperative *** derived a nomogram to predict disease-free survival in a previous *** To simplify our score and compare research outcomes among other scoring *** We retrospectively reviewed data from 1106 patients with hepatocellular carcinoma who underwent liver resection at the Linkou Chang Gung Memorial Hospital between April 2003 and December *** analyses were conducted to identify the significant survival ***,Harrell’s C-index,and Akaike information criterion were compared between our score,AJCC 8^(th)edition,Tokyo score,and Taipei Integrated Scoring System(TTV-CTPAFP model).RESULTS Among the 1106 patients,731(66.1%)had tumor recurrence at a median followup of 83.9 *** risk factors were identified:platelet count,albumin level,indocyanine green retention rate,multiplicity,and radiologic total tumor *** were divided into three risk groups,and the 5-year survival rates were 61.7%,39%,and 25.7%,*** C-index was 0.617,which was higher than the Tokyo score(0.613)and the Taipei Integrated Scoring System(0.562)and equal to the value of the AJCC 8th edition(0.617).CONCLUSION The modified score provides an easier method to predict *** treatment can be planned preoperatively by dividing patients into risk groups.

关键词： Hepatocellular carcinoma Preoperative Prediction Tumor recurrence

Low-dose testosterone treatment decreases oxidative damage in TM3 Leydig cells

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Asian Journal of Andrology 2011年第3期13卷 432-437,512页

作者： Thomas IS Hwang Tien-Ling Liao Ji-Fan Lin Yi-Chia Lin Shu-Yu Lee Yen-Chun Lai Shu-Huei kao Department of Urology Taipei Medical University Taipei Taiwan China Department of Urology School of Medicine Fu-Jen Catholic University Taipei Taiwan China Division of Urology Department of Surgery Shin Kong Wu Ho-Su Memorial Hospital Taipei Taiwan China School of Medical Laboratory Science and Biotechnology Taipei Medical University Taipei Taiwan China Central Laboratory Shin Kong Wu Ho-Su Memorial Hospital Taipei Taiwan China

Testosterone replacement therapy has benefits for aging men and those with hypogonadism. However, the effects of exogenous testosterone on Leydig cells are still unclear and need to be clarified. In this report, we demonstrate that testosterone supplementation can reduce oxidative damage in Leydig cells. The TM3 Leydig cell line was used as an in vitrocell model in this study. Cytoprotective effects were identified with 100-nmol l-1 testosterone treatment, but cytotoxic effects were found with ≥ 500-nmol l-1 testosterone supplementation. Significantly reduced reactive oxygen species （ROS） generation, lipid peroxide contents and hypoxia induction factor （HIF）-lα stabilization and activation were found with lO0-nmol 1-1 testosterone treatment. There was a 1.72-fold increase in ROS generation in the 500-nmol l-1 compared to the lO0-nmol l-1 testosterone treatment. A 1.58-fold increase in steroidogenic acute regulatory protein （STAR） expression was found in 50-nmol l-1 testosterone-treated cells （P〈0.01）. Chemically induced hypoxia was attenuated by testosterone supplementation. Leydig cells treated with low-dose testosterone supplementation showed cytoprotection by decreasing ROS and lipid peroxides, increasing StAR expression and relieving hypoxia stress as demonstrated by HIF-1α stabilization. Increased oxidative damage was found with ≥ 500-nmol l-1 testosterone manipulation. The mechanism governing the differential dose effects of testosterone on Leydig cells needs further investigation in order to shed light on testosterone replacement therapy.

关键词： Leydig cells oxidative damage reactive oxygen species testosterone

The Governance of the Chaotic International Security

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Contemporary International Relations 2017年第3期27卷 60-74页

作者： Lin Limin Yuan kao Department of International Relations University of International Relations CICIR

After the Cold War ended, former traditional security threats withered while non-traditional ones sprouted. More recently as both traditional and non-traditional security threats bloom, concern spreads over whether international security governance can be effective. Worse still, major Western countries' zeal for global governance has cooled,while they turn from being advocates of global governance to obstacles,making the future dimmer.

关键词： global security governance global governance global security threats