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Chinese Journal of Cancer Research 2011年第3期23卷 239-241页

作者： yi xiao jia Wei Jin-huan Xu jian-feng Zhou yi-cheng Zhang Department of Hematology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

One case of acute megakaryoblastic leukemia （AMKL） with trisomy 21,trisomy 14 and unmutated GATA1 gene in a phenotypically normal girl was *** patient experienced transient myelodysplasia before the onset of *** bone marrow blasts manifested typical morphology of megakaryoblast both by the May-Giemsa staining and under the electronic *** cells were positive for CD13,CD33,CD117,CD56,CD38,CD41 and CD61 in flow cytometry *** study showed karyotype of 48,XX,＋14,＋21 in 40% *** mutations of GATA1 gene in Down syndrome or acquired trisomy 21 were not detected in this case.

关键词： Acute megakaryoblastic leukemia Myelodysplasia Cytogenetics GATA1

CP-25 reverses prostaglandin E4 receptor desensitization-induced fibroblast-like synoviocyte dysfunction via the G protein-coupled receptor kinase 2 in autoimmune arthritis

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Acta Pharmacologica Sinica 2019年第8期40卷 1029-1039页

作者： xiao-yi jia Yan Chang Fang Wei Xing Dai Yu-jing Wu xiao-jing Sun Shu Xu Hua-xun Wu Chun Wang Xue-zhi Yang Wei Wei Institute of Clinical Pharmacology Anhui Medical University Key Laboratory of Anti-inflammatory and Immune Medicine Ministry of Education Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine School of Pharmacy Anhui University of Chinese Medicine

Paeoniflorin-6’-O-benzene sulfonate(CP-25)is a novel compound derived from paeoniflorin that has been demonstrated to have therapeutic effects in a rat model of rheumatoid arthritis(RA).However,the underlying mechanism has not been elucidated to *** explored this mechanism in the present study by treating rats with adjuvant arthritis(AA)with *** found that the membrane EP4 protein level was downregulated;whereas,GRK2 was upregulated,in fibroblast-like synoviocyte(FLS)s of AA ***(PGE)2 stimulated FLS proliferation and enhanced the membrane EP4 receptor protein level;the latter was reversed by the administration of an EP4 receptor agonist,whereas the membrane GRK2 protein level gradually *** changes in the EP4 receptor and GRK2 expression were enhanced by TNF-α,and the former was accompanied by an alteration in the cyclic(c)AMP *** EP4 receptor agonist stimulation increased the association between GRK2 and the EP4 ***2 knockdown abrogated the abnormalities in FLS *** CP-25 treatment(100 mg/kg)suppressed joint inflammation with an efficacy that was similar to that of *** finding was associated with EP4 upregulation and GRK2 downregulation in ***,GRK2 plays an important role in the abnormal FLS proliferation observed in AA possibly by promoting EP4 receptor desensitization and decreasing the cAMP *** results demonstrate that CP-25 has therapeutic potential for the treatment of human RA via GRK2 regulation.

关键词： adjuvant-induced arthritis paeoniflorin-6’-O-benzene sulfonate fibroblast-like synoviocytes G protein-coupled receptor kinase 2 prostaglandin E2

Exploring the performance of large language models on hepatitis B infection-related questions:A comparative study

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World Journal of Gastroenterology 2025年第3期31卷 103-112页

作者： Yu Li Chen-Kai Huang yi Hu xiao-Dong Zhou Cong He jia-Wei Zhong Department of Gastroenterology Jiangxi Provincial Key Laboratory of Digestive DiseasesJiangxi Clinical Research Center for GastroenterologyDigestive Disease HospitalThe First Affiliated HospitalJiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina HuanKui Academy Nanchang UniversityNanchang 330006Jiangxi ProvinceChina

BACKGROUND Patients with hepatitis B virus(HBV)infection require chronic and personalized care to improve *** language models(LLMs)can potentially provide medical information for *** To examine the performance of three LLMs,ChatGPT-3.5,ChatGPT-4.0,and Google Gemini,in answering HBV-related *** LLMs’responses to HBV-related questions were independently graded by two medical professionals using a four-point accuracy scale,and disagreements were resolved by a third *** question was run three times using three *** was assessed via the Gunning Fog index and Flesch-Kincaid grade *** Overall,all three LLM chatbots achieved high average accuracy scores for subjective questions(ChatGPT-3.5:3.50;ChatGPT-4.0:3.69;Google Gemini:3.53,out of a maximum score of 4).With respect to objective questions,ChatGPT-4.0 achieved an 80.8%accuracy rate,compared with 62.9%for ChatGPT-3.5 and 73.1%for Google *** the six domains,ChatGPT-4.0 performed better in terms of diagnosis,whereas Google Gemini demonstrated excellent clinical ***,in the readability analysis,the mean Gunning Fog index and Flesch-Kincaid grade level scores of the three LLM chatbots were significantly higher than the standard level eight,far exceeding the reading level of the normal *** Our results highlight the potential of LLMs,especially ChatGPT-4.0,for delivering responses to HBV-related *** may be an adjunctive informational tool for patients and physicians to improve ***,current LLMs should not replace personalized treatment recommendations from physicians in the management of HBV infection.

关键词： ChatGPT-3.5 ChatGPT-4.0 Google Gemini Hepatitis B infection Accuracy

刚柔嵌段共聚物聚苯基喹啉-b-聚乙二醇的合成与自组装

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功能材料 2005年第7期36卷 1086-1089页

作者：龙永福谢凯许静张学骜肖加余国防科技大学材料工程与应用化学系湖南长沙410073

以聚乙二醇单甲醚、丁二酸酐、4-氨基苯乙酮、5-乙酰基-2-氨基二苯甲酮为原料合成了以聚苯基喹啉(PPQ)为硬段、聚乙二醇(PEG)为软段的“刚棒-线团”两嵌段共聚物PPQ-b-PEG,通过IR1、HNMR对其结构进行了表征。并对1mg/ml的PPQ-b-PEG在三... 详细信息

以聚乙二醇单甲醚、丁二酸酐、4-氨基苯乙酮、5-乙酰基-2-氨基二苯甲酮为原料合成了以聚苯基喹啉(PPQ)为硬段、聚乙二醇(PEG)为软段的“刚棒-线团”两嵌段共聚物PPQ-b-PEG,通过IR1、HNMR对其结构进行了表征。并对1mg/ml的PPQ-b-PEG在三氟乙酸/二氯甲烷稀溶液(1∶1 TFA∶DCM,v/v)的自组装进行了初步研究。结果表明:PPQ-b-PEG能自组装形成直径为4.

关键词：聚苯基喹林聚乙二醇刚柔嵌段共聚物合成表征

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目前我国野外地质勘查的安全生产管理研究

价值工程 2018年第34期37卷 71-72页

作者：肖艺佳贵州省地质环境监测院贵阳550081

随着我国社会经济的飞速发展,人们生活水平有了很大的提高,而这种快速的经济发展速度,是对环境资源造成很大破坏的基础上完成的,目前我国的矿产资源储量持续降低,这也使开采难度大大增加。并且,大部分地质勘查的工作都是在野外进行,这... 详细信息

随着我国社会经济的飞速发展,人们生活水平有了很大的提高,而这种快速的经济发展速度,是对环境资源造成很大破坏的基础上完成的,目前我国的矿产资源储量持续降低,这也使开采难度大大增加。并且,大部分地质勘查的工作都是在野外进行,这也为工作的进行增加了困难,这就需要开展安全生产管理的工作,确保人员的人身安全,为地质勘查工作的顺利进行提供保障。

关键词：野外地质勘查安全生产管理

人肝癌P57^(kip2)基因失表达的遗传不稳定性

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基础医学与临床 2010年第3期30卷 272-274页

作者：易晓佳申丽娟章宗籍昆明医学院病理教研室云南昆明650031

目的探讨肝细胞癌(HCC)P57kip2mRNA表达与遗传不稳定性之间的相互关系,以探索P57kip2基因失表达的机制。方法用原位分子杂交技术检测肝癌组织中P57kip2mRNA表达,用PCR-聚丙烯酰胺凝胶电泳-银染法检测LOH和MSI。结果在正常肝组织未见P57k... 详细信息

目的探讨肝细胞癌(HCC)P57kip2mRNA表达与遗传不稳定性之间的相互关系,以探索P57kip2基因失表达的机制。方法用原位分子杂交技术检测肝癌组织中P57kip2mRNA表达,用PCR-聚丙烯酰胺凝胶电泳-银染法检测LOH和MSI。结果在正常肝组织未见P57kip2mRNA表达,癌周肝硬化组与肝癌组阳性表达率均为26.7%(8/30)。3个位点均未发生LOH;在2个微卫星位点发生MSI,MSI总阳性率为16.7%。D11S1760位点发生MSI与P57kip2mRNA表达有关联性(P<0.05)。结论P57kip2mRNA表达异常提示其可能在HCC发生过程中起重要作用。MSI可能是肝癌发生过程中P57kip2mRNA表达异常的原因之一。

关键词：肝癌 P57kip2 遗传不稳定性杂合性缺失微卫星不稳定性

Passive activity enhances residual control ability in patients with complete spinal cord injury

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Neural Regeneration Research 2025年第8期20卷 2337-2347页

作者： Yanqing xiao Mingming Gao Zejia He jia Zheng Hongming Bai jia-Sheng Rao Guiyun Song Wei Song xiaoguang Li Beijing Key Laboratory for Biomaterials and Neural Regeneration Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijingChina Department of Rehabilitation Evaluation China Rehabilitation Research CenterBeijingChina Cardiac Center Beijing Children’s HospitalCapital Medical UniversityBeijingChina The State Key Laboratory of Virtual Reality Technology and Systems Beihang UniversityBeijingChina Department of Rehabilitation Engineering China Rehabilitation Science InstituteBeijingChina

Patients with complete spinal cord injury retain the potential for volitional muscle activity in muscles located below the spinal injury ***,because of prolonged inactivity,initial attempts to activate these muscles may not effectively engage any of the remaining neurons in the descending pathway.A previous study unexpectedly found that a brief clinical round of passive activity significantly increased volitional muscle activation,as measured by surface *** this study,we further explored the effect of passive activity on surface electromyographic signals during volitional control tasks among individuals with complete spinal cord *** patients with chronic complete thoracic spinal cord injury were *** electromyography data from eight major leg muscles were acquired and compared before and after the passive activity *** results indicated that the passive activity led to an increased number of activated volitional muscles and an increased frequency of *** the cumulative root mean square of surface electromyography amplitude for volitional control of movement showed a slight increase after passive activity,the difference was not statistically *** findings suggest that brief passive activity may enhance the ability to initiate volitional muscle activity during surface electromyography tasks and underscore the potential of passive activity for improving residual motor control among patients with motor complete spinal cord injury.

关键词： complete spinal cord injury cycle training epidural electrical stimulation motor training passive activity physiological state spinal cord circuit surface electromyography volitional control task

基于Faster R-CNN模型的木材表面节子缺陷检测

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木材工业 2020年第2期34卷 45-48页

作者：萧嘉奕马艳周竹方益明浙江农林大学信息工程学院浙江杭州311300 浙江省林业智能监测与信息技术研究重点实验室浙江杭州311300 浙江双枪竹木有限公司浙江丽水323800

研究基于Faster R-CNN模型的木材表面节子缺陷检测方法,解决现有方法存在的特征选取困难、不能适应木材以及节子的多样性变化、检测精度不高等问题,而且能够给出节子缺陷的位置以及图像的大小。小样本集测试结果表明,该方法能够取得较... 详细信息

研究基于Faster R-CNN模型的木材表面节子缺陷检测方法,解决现有方法存在的特征选取困难、不能适应木材以及节子的多样性变化、检测精度不高等问题,而且能够给出节子缺陷的位置以及图像的大小。小样本集测试结果表明,该方法能够取得较高的检测精度,准确率为94.0%;对其中4个典型样本进行分析,位置检测最大误差仅为5个像素,大小检测最大误差仅为7个像素;相比OSTU方法具有更好的检测精度。

关键词：深度学习节子检测 Faster R-CNN 缺陷定位

老年溃疡性结肠炎合并机会性感染临床特点分析

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中国医学科学院学报 2016年第3期38卷 288-293页

作者：吕红刘爱玲李骥吴东赵一晓钱家鸣中国医学科学院北京协和医学院北京协和医院消化内科北京100730

目的总结老年溃疡性结肠炎（UC）合并机会性感染的临床表现、诊疗方法和转归。方法以2006年10月至2016年2月北京协和医院收治的43例老年UC（确诊年龄≥60岁）患者为研究对象,根据有无感染情况分为感染组（合并机会性感染,n=14）和对照... 详细信息

目的总结老年溃疡性结肠炎（UC）合并机会性感染的临床表现、诊疗方法和转归。方法以2006年10月至2016年2月北京协和医院收治的43例老年UC（确诊年龄≥60岁）患者为研究对象,根据有无感染情况分为感染组（合并机会性感染,n=14）和对照组（无感染并发症,n=29）,比较两组患者的临床资料。结果感染组14例患者中,男10例（71.4%）,平均年龄（65.0±4.3）岁（60～75岁）,中位病程11.0（3.5,52.5）个月。感染组患者广泛型结肠炎的比率为78.6%,明显高于对照组的44.8%（χ2=4.36,P=0.04）;重度比率虽高于对照组,但差异无统计学意义（50.0%比20.7%;χ2=2.58,P=0.11）。感染组患者的住院时间明显长于对照组[（35.7±13.8）d比（22.0±15.8）d,P=0.01],器官衰竭率（21.4%比0）及死亡率（7.1%比0）较高;急诊手术率（50.0%比17.2%;χ2=3.54,P=0.06）和激素依赖及抵抗率（64.3%比43.8%;χ2=1.27,P=0.26）虽偏高,但与对照组相比差异无统计学意义。结论对老年UC患者,机会性感染可加重病情,增加医疗花费,是预后不良的危险因素。

关键词：老年溃疡性结肠炎机会性感染

miRNA-21-5p is an important contributor to the promotion of injured peripheral nerve regeneration using hypoxia-pretreated bone marrow-derived neural crest cells

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Neural Regeneration Research 2025年第1期20卷 277-290页

作者： Meng Cong Jing-Jing Hu Yan Yu xiao-Li Li xiao-Ting Sun Li-Ting Wang Xia Wu Ling-Jie Zhu xiao-jia Yang Qian-Ru He Fei Ding Hai-Yan Shi School of Medicine Nantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of jiangsu and Ministry of Education and Coinnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina Department of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our previous study found that rat bone marrow–derived neural crest cells(acting as Schwann cell progenitors)have the potential to promote long-distance nerve ***-based therapy can enhance peripheral nerve repair and regeneration through paracrine bioactive factors and intercellular ***,the complex contributions of various types of soluble cytokines and extracellular vesicle cargos to the secretome remain *** investigate the role of the secretome and extracellular vesicles in repairing damaged peripheral nerves,we collected conditioned culture medium from hypoxia-pretreated neural crest cells,and found that it significantly promoted the repair of sensory neurons damaged by oxygen-glucose *** mRNA expression of trophic factors was highly expressed in hypoxia-pretreated neural crest *** performed RNA sequencing and bioinformatics analysis and found that miR-21-5p was enriched in hypoxia-pretreated extracellular vesicles of neural crest ***,to further clarify the role of hypoxia-pretreated neural crest cell extracellular vesicles rich in miR-21-5p in axonal growth and regeneration of sensory neurons,we used a microfluidic axonal dissociation model of sensory neurons in vitro,and found that hypoxia-pretreated neural crest cell extracellular vesicles promoted axonal growth and regeneration of sensory neurons,which was greatly dependent on loaded ***,we constructed a miR-21-5p-loaded neural conduit to repair the sciatic nerve defect in rats and found that the motor and sensory functions of injured rat hind limb,as well as muscle tissue morphology of the hind limbs,were obviously *** findings suggest that hypoxia-pretreated neural crest extracellular vesicles are natural nanoparticles rich in ***-21-5p is one of the main contributors to promoting nerve regeneration by the neural crest cell *** helps to explain the mechanism of action of the secretome and e

关键词： axotomy cell-free therapy conditioned medium extracellular vesicles hypoxic preconditioning microRNA oxygen-glucose deprivation peripheral nerve injury Schwann cell precursors