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B1的相关文献在1959年到2023年内共计39138300篇,主要集中在肿瘤学、无线电电子学、电信技术、内科学 等领域,其中期刊论文102篇、会议论文2篇、专利文献39138196篇;相关期刊83种,包括科技信息、科技致富向导、浙江临床医学等; 相关会议2种,包括2000年中国水产学术年会、2007年北京地区高校研究生学术交流会等;B1的相关文献由50000位作者贡献,包括不公告发明人、王伟、张伟等。

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期刊论文>

论文:102 占比:0.00%

会议论文>

论文:2 占比:0.00%

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论文:39138196 占比:100.00%

总计:39138300篇

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B1

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    • 朱情情; 柴振达; 徐立文
    • 摘要: 脚气性心脏病是一种维生素B1缺乏导致的相关疾病,临床少见,误诊率极高。本文报道2021年1月收治于舟山医院的1例重症脚气性心脏病合并多脏器功能衰竭的患者。患者2个月前无明显诱因下出现双下肢对称性浮肿。心电图提示窦性心律,全导联低电压,完全性右束支传导阻滞。病情严重,当天收入重症监护室进行治疗,行气管插管,呼吸机维持,之后应用维生素B1治疗,病情好转出院。
    • 张良杰; 蔡信鑫; 黄小玲
    • 摘要: 目的探究支原体肺炎(MPP)患儿血清高迁移率族蛋白B1(HMGB1)、微小RNA-223(miR-223)表达与预后的相关性。方法选取2020年3月~2021年10月我院重症MPP患儿53例为A组,选取同期非重症MPP患儿53例为B组,以临床肺部感染评分(CPIS)评估预后并记录其变化。另选取同期健康体检儿童45例为C组,均检测入院时血清HMGB1、miR-223水平。MPP患儿入院后积极治疗7 d,比较不同疾病转归及患儿入院时、入院3 d、入院7 d血清HMGB1、miR-223水平,以Pearson分析二者与CPIS评分的相关性。结果3组入院时血清HMGB1、miR-223水平比较差异有统计学意义,且A组>B组>C组(P<0.05);入院3 d、7 d不同疾病转归MPP患儿血清HMGB1、miR-223水平及CPIS评分均明显降低,其中好转患儿均低于无效患儿(P<0.05);血清HMGB1、miR223水平与CPIS评分均呈正相关关系(P<0.05);入院3 d血清HMGB1、miR-223联合预测MPP患儿短期预后具有较高价值,AUC为0.856,灵敏度、特异度分别为84.49%、81.72%。结论HMGB1、miR-223参与MMP进展,且与病情程度存在正相关。可作为判定MMP患儿病情程度、治疗效果、疾病转归的标志物。
    • 王辉
    • 摘要: 2017 年以来教育部积极推进新工科建设,新工科人才培养要求在传统工科基础上进行改进,势必要求对应课程教学发生相应的变革,对于我校计算机科学与技术(汽车智能化与信息化)中法双学位专业,法语作为必修课程,在法语专业教育人才培养模式下课程教改势在必行,针对理工科学生特征,我校探索实施与新工科人才培养相适应的内容,注重学生听说读写能力全面发展,为我校中法合作专业的发展奠定了重要基础。
    • 吴瑶; 许碧磊; 郭方; 董宁; 于燕; 祝筱梅; 姚咏明
    • 摘要: 目的:研究严重烧伤小鼠体内高水平高迁移率族蛋白B1(HMGB1)诱导脾脏树突状细胞(DC)凋亡与内质网应激(ERS)的关系.方法:①复制严重烧伤小鼠模型,检测脾脏与血清中HMGB1的表达.②烧伤模型小鼠和假烫组(37°C水浴)均随机分为3组,分别给予抗HMGB1中和抗体、未免疫兔血清IgG和生理盐水,观察烧伤各组及生理盐水处理假伤组小鼠7 d生存率,并测定各组脾脏DC细胞ERS相关蛋白GRP78和XBP-1的表达.③正常小鼠尾静脉注射10或20μg重组HMGB1,48 h后处死,测定脾脏GRP78和XBP-1的表达.④以1、10、100 ng/ml HMGB1体外刺激健康小鼠的脾脏DC,并进一步应用细胞凋亡抑制剂Salubrinal(Sal)于HMGB1刺激1 h前进行干预,流式细胞术检测DC凋亡;Western blot法检测DC内ERS相关因子GRP78和CHOP的表达水平.分析HMGB1诱导DC细胞凋亡与ERS的内在联系.结果:小鼠烧伤后HMGB1蛋白表达水平增高.抗HMGB1中和抗体对严重烧伤小鼠有明确保护作用,可提高严重烧伤小鼠7 d存活率,显著降低烧伤小鼠脾脏DC内ERS标志分子GRP78以及ERS介导细胞凋亡的关键分子CHOP的蛋白水平.HMGB1(10 ng/ml)刺激可直接诱导DC凋亡以及ERS相关细胞凋亡关键分子CHOP蛋白表达升高;Sal干预可缓解ERS并抑制HMGB1诱导的DC凋亡(P<0.05).结论:HMGB1刺激诱导DC凋亡与ERS相关性细胞凋亡通路激活密切相关,是严重烧伤小鼠脾脏DC功能障碍的重要发病机制.
    • 董娅丽
    • 摘要: 提供了半群属于空间B1的充分条件,进而得到了复合半群在其上有界.讨论了在强连续条件下无穷小生成元的定义域,证明了复合半群在B1非一致连续.另外讨论了复合半群在空间Bp(1<p<∞)上强连续的充要条件.%The sufficient condition for the (Φt)t≥0 belong to B1 is provided and then the composition semigroups are bounded on B1.The domain of infinitesimal generator under strong continuity is discussed.And the composition semigroups are proved to be not continuous in the uniform topology.In addition to that,the necessary and sufficient condition about composition semigroups which are strongly continuous on Bp (1 < p < c∞) is described.
    • 摘要: 目的 研究胶质瘤瘤样组织中高迁移率族蛋白 B1(HMGB1)、核因子-kB(NF-kB)的表达意义,分析其与肿瘤病理级别的关联性.方法 选取2013年9月至2017年9月进行胶质瘤切除术术后肿瘤标本76例(观察组)与同期进行的颅内减压术术后正常脑组织标本20例(对照组)为研究对象.通过免疫组化法分析HMGB1、NF-kB分别在两组标本中的阳性表达水平,结合临床相关因素及术后肿瘤病理特征,研究HMGB1、NF-kB与神经胶质瘤临床及病理特征的相关性.结果 HMGB1、NF-kB在胶质瘤中相对于正常脑组织阳性表达明显升高(P<0.05);HMGB1及NF-kB阳性表达水平与肿瘤恶性程度相关(P<0. 05).结论 HMGB1、NF-kB 在胶质瘤阳性表达显著高于正常脑组织,并且HMGB1、NF-kB的表达与肿瘤病理级别有关,提示其可能参与肿瘤的发生及进展过程.%Objective To detect the expressions of high mobility group box-1,nuclear factor-kB(NF-kB)in tumor tissues of glioma patients and analyze the correlation of HMGB1 and NF-kB expressions with tumor pathology. Methods A total of 76 patients who undertook glioma resection were selected as observation group,and 20 patients who undertook intracranial decompression were selected as control group during September 2013 to September 2017. The expressions of HMGB1 and NF-kB were detected by SP immunohistochemistry(SP)and analyzed by combining clinical factors and postoperative tumor pathology to investigate the relationship between the expression levels of HMGB1 and NF-kB and the pathology of glioma. Results The positive expression rates of HMGB1 and NF-kB in glioma tissues of the observation group were both higher than those of the control group(P<0.05). The expression levels of HMGB1 and NF-kB in glioma tissues were observed in the observation group. The pathological grade of the tumor was related(P<0.05). Expression levels of HMGB1 and NF-kB in glioma tissue of the trial group were related with pathological grade of glioma(P<0.05). In the observation group,HMGB1 expression level was positively correlated with NF-kB expression level(r=0.316,P<0.05). Conclusion HMGB1 and NF-kB are significantly higher in glioma tumor specimens than normal tissues,and the expression of HMGB1 and NF-kB is correlated with tumor pathological grade,suggests that may be closely related to the occurrence and pathology of glioma.
    • 赵孟佳; 唐雪梅
    • 摘要: 高迁移率族蛋白(high mobility group protein,HMGP)包括3个家族,即高迁移率族蛋白A(high mobility group A protein,HMGA)、高迁移率族蛋白B(high mobility group box protein,HMGB)及高迁移率族蛋白N(high mobility group N protein,HMGN)。HMGB家族中又包含HMGB1、HMGB2、HMGB3三个成员。这些非组蛋白中,只有HMGB1才能够实现细胞外释放。
    • 摘要: Trastuzumab-emtansine(T-DM1)是晚期HER2阳性乳腺癌的标准治疗药物。但是不可避免的会出现肿瘤耐药。Clinical Cancer Research近期发表了一篇文章,研究T-DM1获得性耐药的机制。作者使用T-DM1处理HER2阳性乳腺癌细胞(HCC1954,HCC1419,SKBR3和BT474)以诱导耐药亚型,比较亲代和耐药亚型之间由T-DM1引起的细胞和分子的不同,
    • 郁佳; 吴凤英; 张世佳; 陈淑琴; 刘鸿程; 武春燕; 史景云; 梁世雄; 任胜祥; 周彩存
    • 摘要: 本文介绍1例表皮生长因子受体(epidermal growth factor receptor,EGFR)突变晚期非小细胞肺癌(nonsmall-cell lung cancer,NSCLC)接受表皮生长因子受体酪氨酸激酶抑制剂(epidermal growth factor receptor tyrosine kinase inhibitors,EGFR-TKIs)治疗后,肿瘤疗效不一致,后经过多次多学科讨论,接受综合诊治的经过。该患者通过经皮肺穿刺明确Ⅳ期左肺腺癌伴纵隔肺门淋巴结、双肺及脑转移,基因检测示EGFR 19外显子缺失,一线予以EGFR-TKIs治疗。疗效考核提示左肺病灶持续有效,但右肺病灶进行性增大。右肺病灶再次活检提示鳞癌,后经化疗及右肺病灶局部放疗,双侧病灶均得到控制。患者经过多次多学科讨论,实现个体化诊疗,为患者带来生存获益。
    • A. Aridi; L. Baydoun; C. M. S. T. Sukhn
    • 摘要: Objectives: To challenge the expiry dates of low concentration high purity mycotoxins standards. Literature Review: Aflatoxins (AFs) and Ochratoxin A (OTA) are persistent mycotoxins with adverse effects on humans. Mycotoxins standards are purchased to determine mycotoxin concentrations in food and may be stocked in some laboratories beyond expiry dates causing laboratories financial losses. Methods: Certified mycotoxins standards were purchased over the years from the same supplier at times and at other times from two different suppliers for quality control purposes. For AFs, six chromatographic runs for each of the mycotoxins standards were done to compare the difference among these standards having the following expiry dates (2008, 2012, 2013 and 2018). AFs standards purchased/obtained from two different suppliers in 2016 and expiring in 2018 were also compared. For OTA, the difference of concentration obtained between two years (2010 and 2018) was tested. All samples were run on a HPLC equipped with a fluorescence detector. Linearity of calibration curves and the points of lowest detection were determined for AFs components and for OTA from the unexpired mycotoxins standards. Results: At a 0.05 significance level and using non parametric tests, the statistical test revealed a p of 0.166, 0.153, 0.358 and 0.03 for B1, G1, B2 and G2 respectively among years for standards from same supplier and 0.037, 0.109, 0.182 and 0.182 for B1, G1, B2 and G2 respectively for unexpired standards from two different suppliers. For OTA, a p of 0.109 was obtained for standards of different expiry dates purchased from different suppliers. Conclusion: High purity low concentration mycotoxin standards purchased a decade ago (i.e. expired) did not differ from those purchased this current year (still valid). Hence, the expiry date can be renewed reducing the laboratories expenses. Manufacturers are urged to reconsider the expiry dates.
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