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      • SCIESCOPUSKCI등재

        Causes, Features, and Outcomes of Drug-Induced Liver Injury in 69 Children from China

        ( Yun Zhu ),( Yong Gang Li ),( Jia Bo Wang ),( Shu Hong Liu ),( Li Fu Wang ),( Yan Ling Zhao ),( Yun Feng Bai ),( Zhong Xia Wang ),( Jian Yu Li ),( Xiao He Xiao ) 대한소화기학회 2015 Gut and Liver Vol.9 No.4

        Background/Aims: Drug-induced liver injury (DILI) is a frequent cause of pediatric liver disease; however, the data on DILI are remarkably limited. Methods: All 69 children hospitalized with DILI between January 2009 and December 2011 were retrospectively studied. Results: A total of 37.7% of the children had medical histories of respiratory infection. The clinical injury patterns were as follows: hepatocellular 89.9%, cholestatic 2.9%, and mixed 7.2%. Liver biopsies from 55 children most frequently demonstrated chronic (47.3%) and acute (27.3%) hepatitis. Hypersensitivity features, namely, fever (31.9%), rash (21.7%), and eosinophilia (1.4%), were found. Twenty-four children (34.8%) developed chronic DILI. Antibiotics (26.1%) were the most common Western medicines (WMs) causing DILI, and the major implicated herbs were Ephedra sinica and Polygonum multiflorum. Compared with WM, the children whose injuries were caused by Chinese herbal medicine (CHM) showed a higher level of total bilirubin (1.4 mg/dL vs 16.6 mg/dL, p=0.004) and a longer prothrombin time (11.8 seconds vs 17.3 seconds, p=0.012), but they exhibited less chronic DILI (2/15 vs 18/39, p=0.031). Conclusions: Most cases of DILI in children are caused by antibiotics or CHM used to treat respiratory infection and present with hepatocellular injury. Compared with WM, CHM is more likely to cause severe liver injury, but liver injury caused by CHM is curable. (Gut Liver 2015;9:525-533)

      • KCI등재

        패션 팝업 스토어에 있어서 소비자 특성이 청년층 소비자의 쇼핑가치와 구매의도에 미치는 영향

        이효린(Li, Ling Yun),문준연(Moon, Junyean) 한국상품학회 2021 商品學硏究 Vol.39 No.5

        이 연구는 소비자 특성 변수가 패션 팝업 스토어의 쇼핑가치에 대한 소비자 지각에 영향을 미치는지, 그리고 쇼핑가치가 구매의도에 영향을 미치는지 실증조사를 통해 검증하였다. 소비자 특성 변수로 소비자 혁신성, 쇼핑 즐거움, 패션 관여도, 독특성의 네 가지 변수가 도입된다. 쇼핑가치는 실용적 쇼핑가치와 쾌락적 쇼핑가치로 구분된다. 본 연구의 조사대상은 팝업 스토어방문 경험이 있는 20-30대 소비자를 대상으로 하며, 편의적 표본추출방법에 의하여 선정된 한국과 중국의 소비자 279명이 설문조사에 참여하였다. 구조방정식 모형에 의한 경로분석을 통하여 가설 검증이 이루어졌다. 본 연구의 주요 결과는 다음과 같이 요약된다. 첫째, 소비자 혁신성, 쇼핑 즐거움, 패션 관여도, 독특성의 네 가지 소비자 특성이 전반적으로 쾌락적 가치에 더 큰 영향을 미친다는 것이다. 각 특성이 실용적 가치와 쾌락적 가치에 미치는 영향을 보면 독특성 욕구를 제외하고는 모두 쾌락적 가치에 더 큰 영향을 미치고 있다. 둘째, 개인 특성 변수가 쇼핑가치에 미치는 영향력의 순서를 보면 쾌락적 가치의 경우, 패션 관여도가 1순위이고 다음으로 독특성 욕구, 소비자 혁신성, 쇼핑 즐거움의 순이다. 실용적 가치의 경우, 독특성욕구, 패션 관여도, 쇼핑 즐거움, 소비자 혁신성의 순으로나타났다. 종합적으로 볼 때 패션 관여도와 독특성 욕구가 중요한 개인 특성임을 알 수 있다. 셋째, 실용적 쇼핑 가치와 쾌락적 쇼핑가치는 각기 구매의도에 긍정적 영향을 미치는 것으로 나타났다. 그 영향의 정도를 보면 쾌락적 가치가 실용적 가치에 비하여 훨씬 크게 나타났다. This study investigated whether consumer characteristics factors affected the consumer’s perceived shopping values of a fashion pop-up store and whether the shopping values affected the consumer’s purchase intention at the store. The selected consumer characteristics include consumer innovativeness, shopping enjoyment, fashion involvement, and needs for uniqueness. The shopping values are classified as either utilitarian values or hedonic values. The sample frame of the study consists of 20-30 years old consumers having experience of visiting fashion pop-up stores. A convenience sample of 279 Koreans and Chinese consumers responded to a survey questionnaire. Path analysis through structural equation model was employed to test research hypotheses. Major findings of this study can be summarized as follows. First, the four consumer characteristics factors influenced hedonic shopping values more than utilitarian values, except the needs for uniqueness. Second, fashion involvement was the strongest in affecting hedonic shopping values, needs for uniqueness the next, and consumer innovativeness, and shopping enjoyment in order. Needs for uniqueness was the strongest in affecting utilitarian shopping values, then fashion involvement, shopping enjoyment, and consumer innovativeness in order. We can note that overall, fashion involvement and needs for uniqueness are critical consumer characteristics variables. Third, utilitarian and hedonic shopping values each positively influenced the consumer’s purchase intention. In terms of size hedonic values had much greater impact than utilitarian values.

      • KCI등재후보

        Molecule-based electrorheological material assembled using β-cyclodextrin as substrate

        Yan-Li Shang,Yun-Ling Jia,Yun Ma,Jun-Ran Li,Shao-Hua Zhang,Ming-Xiu Li 한국유변학회 2010 Korea-Australia rheology journal Vol.22 No.1

        Molecule-based electrorheological (ER) materials as a novel type of ER materials, the inclusion compound [H2(β-CD-A)-PTA] between p-toluenesulfonic acid (PTA, guest) and H2(β-CD-A) (host) that is dicarboxylic acid of β-cyclodextrin (β-CD) , and the rare earth (RE) complexes [(β-CD-A)-PTA]3RE2 (RE=La, Gd, Y)of H2(β-CD-A)-PTA, were synthesized. The ER performance and dielectric property of the materials were studied. Our results show that the molecule-based ER materials assembled using β-cyclodextrin as a substrate,especially the inclusion compound and its rare earth (RE) complexes exhibit clear ER effect. The inclusion PTA can markedly enhance the ER performance of H2(β-CD-A) material. The ER activity of the yttrium complex is the highest among these materials. The characteristic of the molecule in molecule-based ER materials is an important factor in influencing ER property.

      • KCI등재

        Value of contrast-enhanced ultrasonography in microwave ablation treatment of symptomatic focal uterine adenomyosis

        Xiao-Long Li,Jia-Xin Li,Song-Yuan Yu,Pei-Li Fan,Yun-Jie Jin,Er-Jiao Xu,Sai-Nan Guan,Er-Ya Deng,Qiu-Yan Li,Zheng-Biao Ji,Jiu-Ling Qi,Hui-Xiong Xu,China Alliance of Multi-Center Clinical Study for Ultra 대한초음파의학회 2024 ULTRASONOGRAPHY Vol.43 No.1

        Purpose: This study evaluated the value of contrast-enhanced ultrasonography (CEUS) in the ultrasound-guided microwave ablation (MWA) treatment of symptomatic focal uterine adenomyosis.Methods: This retrospective study was conducted between March 2020 and January 2023, enrolling 52 patients with symptomatic focal uterine adenomyosis who had undergone MWA. All patients were examined with CEUS before and after MWA. The non-perfused volume (NPV) was compared between CEUS and dynamic contrast-enhanced magnetic resonance imaging (DCEMRI) following ablation. Therapeutic efficacy and safety were evaluated at 3-, 6-, and 12-month follow-ups. Additionally, this study explored the correlations between pre-treatment CEUS features and a volume reduction ratio indicating sufficient ablation, defined as 50% or more at the 3-month follow-up.Results: No significant differences in NPV were noted between CEUS and DCE-MRI immediately after MWA and during follow-up (all P>0.05). At the 3-month follow-up, the median VRRs for the uterus and adenomyosis were 33.2% and 63.9%, respectively. Sufficient ablation was achieved in 69.2% (36/52) of adenomyosis cases, while partial ablation was observed in the remaining 30.8% (16/52). The identification of non-enhancing areas on pre-treatment CEUS was associated with sufficient ablation (P=0.016). At the 12-month follow-up, significant decreases were observed in both the uterine and adenomyosis volumes (all P<0.001). Dysmenorrhea and menorrhagia were significantly alleviated at 12 months, and no major complications were encountered.Conclusion: CEUS can be used to evaluate the ablation zone of focal adenomyosis that has been treated with MWA, similarly to DCE-MRI. The identification of non-enhancing areas on pretreatment CEUS indicates satisfactory treatment outcomes. Purpose: This study evaluated the value of contrast-enhanced ultrasonography (CEUS) in the ultrasound-guided microwave ablation (MWA) treatment of symptomatic focal uterine adenomyosis. Methods: This retrospective study was conducted between March 2020 and January 2023, enrolling 52 patients with symptomatic focal uterine adenomyosis who had undergone MWA. All patients were examined with CEUS before and after MWA. The non-perfused volume (NPV) was compared between CEUS and dynamic contrast-enhanced magnetic resonance imaging (DCE- MRI) following ablation. Therapeutic efficacy and safety were evaluated at 3-, 6-, and 12-month follow-ups. Additionally, this study explored the correlations between pre-treatment CEUS features and a volume reduction ratio indicating sufficient ablation, defined as 50% or more at the 3-month follow-up. Results: No significant differences in NPV were noted between CEUS and DCE-MRI immediately after MWA and during follow-up (all P>0.05). At the 3-month follow-up, the median VRRs for the uterus and adenomyosis were 33.2% and 63.9%, respectively. Sufficient ablation was achieved in 69.2% (36/52) of adenomyosis cases, while partial ablation was observed in the remaining 30.8% (16/52). The identification of non-enhancing areas on pre-treatment CEUS was associated with sufficient ablation (P=0.016). At the 12-month follow-up, significant decreases were observed in both the uterine and adenomyosis volumes (all P<0.001). Dysmenorrhea and menorrhagia were significantly alleviated at 12 months, and no major complications were encountered. Conclusion: CEUS can be used to evaluate the ablation zone of focal adenomyosis that has been treated with MWA, similarly to DCE-MRI. The identification of non-enhancing areas on pre- treatment CEUS indicates satisfactory treatment outcomes.

      • KCI등재

        Genes Regulating the ABORTED MICROSPORES (AMS)-Mediated Male Sterility Networks in Melon (Cucumis melo L.)

        Ling Wang,Dong-yang Dai,Xia Wu,Yun-yan Sheng,Peng Ji,Dan-dan Li,Fan Zhang,Di Wang 한국원예학회 2021 원예과학기술지 Vol.39 No.5

        The male sterile plants have higher heterosis in the production of hybrid seeds. The ABORTED MICROSPORES (AMS) gene has been demonstrated to be a candidate gene for ms-5. However, the genetic mechanism underlying AMS-mediated male sterility (MS) regulatory networks in melon (Cucumis melo L.) is still not clearly understood. In the present study, we used transcriptome sequencing analysis, yeast hybridization technology, quantitative real-time polymerase chain reaction (qRT-PCR), and bioinformatics analyzed to systematically investigate the AMS-mediated MS regulatory networks in melon. A set of 15 proteins interacting with AMS, including the C. melo L. Zinc Ribbon protein 1 (CmZR1) gene, was identified using the yeast one-hybrid (Y1H) system and further confirmed using the yeast two-hybrid (Y2H) assay. The interaction of the CmZR1 protein with the C. melo L. Pectin Methylesterase Inhibitor 1 (CmPMEI1) protein was identified and further verified by the glutathione S-transferase (GST) pull-down technique. Bioinformatics analyzed the physical and chemical properties, gene structure, and kinship of the melon PMEI family. We proposed a partial regulatory network for melon MS in which the interaction of CmPMEI1 protein with CmZR1 protein regulates the expression of the AMS gene for pollen abortion. These findings provide important information for increasing the understanding of the molecular mechanism of the MS regulatory network in melon.

      • KCI등재

        Potassium Humate-Derived Nitrogen-Doped Activated Carbons with Narrow Micropore Size Distribution for High-Performance Supercapacitors

        Lingli Xie,Litao Kang,Yae Li,Mangwei Cui,Bo Chang,Haiwei Jiang,Lili Gao,Xiaomin Wang,Shan Yun 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.4

        Micro-porous activated carbons (ACs) with a narrow pore size distribution of 0.4–0.6 nm and high specific surface areas (1160–1315 m2 · g-1) are prepared from environment-friendly, lowgrade potassium humate (HA-K, carbon resource) and mild activating agent potassium acetate (CH3COOK). Microstructure characterizations indicate that the introduction of activating agent CH3COOK is a key step to achieve high specific surface area and carbonization degree. These ACs contain small amount of oxygen and nitrogen, and show obvious pseudo-capacitance besides double layer capacitance. As a result, the optimized ACs achieve high specific capacitances of 311 F · g-1 and 317 F · g-1 at 0.1 A · g-1 in 2 M KOH and 1 M H2SO4 aqueous electrolytes, respectively. This sample also shows a good charge-discharge cycling stability within 10 000 cycles.

      • KCI등재

        Finite Element Analysis and Test Study on Restraint of High-energy Pipe Whip in Conventional Island

        Ling-yun Peng,Yu-ke Deng,Hua-ting Chen,Ying-jie Kang,Xiang-xiu Li 대한토목학회 2019 KSCE JOURNAL OF CIVIL ENGINEERING Vol.23 No.4

        The effects of high-energy pipe whipping after rupturing are very important in an AP1000 nuclear power plant's conventional island and restraints of pipe whipping should be considered in the design. It is the first time in the country when reinforced concrete shear walls are used as restraint services. In this paper, the behaviors of walls and restraint services subjected to pipe whipping are analyzed through static and dynamic methods in the finite element software (ABAQUS), in which all kinds of nonlinearities are considered. In addition, a test study on the restraint of pipe whipping is conducted. The results show that the wall and the restraint service can prevent pipe whipping effectively under the design load, and anchor plates arranged around the wall opening can improve the local concrete compression performance of concrete to reduce the damage of concrete. Meanwhile, the study also provides the valuable reference for wall designing to prevent from pipe whipping.

      • KCI등재

        Prevalence and Prognostic Role of PIK3CA/AKT1 Mutations in Chinese Breast Cancer Patients

        Ling Deng,Xuehua Zhu,Yun Sun,Jiemin Wang,Xiaorong Zhong,Jiayuan Li,Min Hu,Hong Zheng 대한암학회 2019 Cancer Research and Treatment Vol.51 No.1

        Purpose The prevalence of PIK3CA in Chinese breast cancer patients may be underestimated. Therefore, we investigated the distribution of somatic PIK3CA/AKT1mutations in Chinese breast cancer patients and explored their roles in tumor phenotypes and disease prognosis. Materials and Methods Tumors from 507 breast cancer patients were prospectively collected from the West China Hospital between 2008 and 2013. Whole exons of AKT1 and PIK3CAwere detected in freshfrozen tumors using next-generation sequencing, and correlations between PIK3CA/AKT1 mutations and clinicopathological features were analyzed. Results The AKT1mutation was found in 3.6% (18/507) of patients. Tumors from patients that carried the AKT1mutation were estrogen receptor (ER)+/progesterone receptor (PR)+/human epidermal growth factor receptor 2 (HER2) and were more likely to have high expression levels of Ki67. The prevalence of the PIK3CA mutation was 46.5% (236/507), and 35 patients carried two or three variants of the PIK3CA gene. PIK3CA mutations were associated with ER+/PR+/HER2 status. The prognosis of patients with one mutation in PIK3CA (or PIK3CA/AKT1) was not significantly different than that of patients with wild-type PIK3CA (or PIK3CA/AKT1), while patients with two or three variants in PIK3CA (or PIK3CA/AKT1) exhibited poorer outcomes in the entire group and in all three subgroups (ER+, HER2, Ki67 high), particularly with respect to overall survival. Conclusion A high frequency of somatic PIK3CA mutations was detected in Chinese breast cancer patients. In addition to the mutation frequency, the tumor mutational burden of the PIK3CA and AKT1 genes should also be of concern, as they may be associated with poor prognosis.

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