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Nicotinic acetylcholine receptor α7 subunit: a novel therapeutic target for cardiovascular diseases

null

《医学前沿（英文）》 2012年 第6卷 第1期   页码 35-40 doi: 10.1007/s11684-012-0171-0

摘要：

Inflammation is important in the pathogenesis and development of cardiovascular diseases. Recent studies show that vagus nerve stimulation inhibits pro-inflammatory cytokine production through “the cholinergic anti-inflammatory pathway,” more specifically via the α7 nicotinic acetylcholine receptor (α7nAChR). In the current study, the role of the cholinergic anti-inflammatory pathway during septic shock, hypertension, and myocardial infarction is reviewed, and its possible clinical implications in cardiovascular diseases are discussed.

关键词： α7 nicotinic acetylcholine receptor     cardiovascular diseases     baroreflex sensitivity    

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单萜类化合物芳樟醇、甲基丁香酚、草蒿脑和香茅醛对配体门控离子通道的作用模式 Article

Amy S. Li, Akimasa Iijima, Junhao Huang, Qing X. Li, Yongli Chen

《工程（英文）》 2020年 第6卷 第5期   页码 541-545 doi: 10.1016/j.eng.2019.07.027

摘要：

在传统的医学治疗中，精油被用作镇静剂、抗惊厥剂以及局部麻醉剂，还可以用作储藏食品、水果、蔬菜和谷物等的防腐剂，同时，它还能用作食品生产的生物农药。芳樟醇（LL）以及其他一些主要组分，如甲基丁香酚（ME）、草蒿脑（EG）和香茅醛是许多精油（如罗勒精油）中的活性化学成分。罗勒精油以及上述单萜类化合物在驱除害虫等方面有明显的功效。然而，这些化学成分的作用机制尚不明确。众所周知，γ-氨基丁酸A型受体（GABAAR）和烟碱型乙酰胆碱受体（nAChR）是目前市场上使用的合成杀虫剂的主要分子靶标。此外，GABAAR靶向治疗也已经有了数十年的临床应用实践，如巴比妥类药物和苯二氮类药物。在本研究中，我们研究了LL、ME、EG和香茅醛对GABAAR和nAChR的电生理作用，以进一步了解它们作为传统药物治疗剂和杀虫剂的多功能性。研究结果表明，LL对GABAAR和nAChR均有抑制作用，这或许可以解释LL的杀虫活性。LL是GABAAR的一种浓度依赖性、非竞争性抑制剂，因为在实验中我们发现，小鼠α1β3γ2L GABAAR的γ-氨基丁酸（GABA）半最大效应浓度（EC50）值不受LL影响：在LL不存在或存在5 mmol·L–1 LL的情况下，该半最大效应浓度值分别为(36.2 ± 7.9) μmol·L–1以及(36.1 ± 23.8) μmol·L–1。LL对GABAAR的半抑制浓度（IC50）约为3.2 mmol·L–1。考虑到在精油之中存在着多种单萜类化合物，所以LL可能与此前被表征为GABAAR激动剂和正变构调节物的ME以及其他单萜类化合物具有协同作用，这为LL的镇静、抗惊厥效用和杀虫活性提供了一种可能的解释。

关键词： 精油     γ-氨基丁酸A型受体     芳樟醇     单萜     烟碱型乙酰胆碱受体    

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Resistance of large deformation of the Wushaoling Tunnel F7 soft fault

ZHAO Xufeng, CHEN Haiming, WANG Chunmiao

《结构与土木工程前沿（英文）》 2007年 第1卷 第1期   页码 123-127 doi: 10.1007/s11709-007-0013-3

摘要： In this article, the mechanical characteristics of the squeeze of the F7 fault of the Wushaoling Tunnel are analyzed. The measurements and techniques are proposed to resist the deformation. The result indicates that the method of construction to control the further squeeze deflection is appropriate.

关键词： F7     deformation     appropriate     construction     mechanical    

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中国工程科学2005年第7卷总目次

null

《中国工程科学》 2005年 第7卷 第12期   页码 98-102

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Acid Orange 7 degradation using methane as the sole carbon source and electron donor

《环境科学与工程前沿（英文）》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1468-5

摘要：

• AO7 degradation was coupled with anaerobic methane oxidation.

关键词： Azo dyes     AO7 degradation     Anaerobic methane oxidation     Microbial community     ANME-2d    

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Time-dependent metabolomics uncover dynamic metabolic adaptions in MCF-7 cells exposed to bisphenol A

《环境科学与工程前沿（英文）》 2023年 第17卷 第1期 doi: 10.1007/s11783-023-1604-5

摘要：

● Metabolomic temporal profiling of cells exposed to xenobiotics.

关键词： Metabolomics     BPA     MCF-7     Temporal profiling     Metabolic adaption     Dysregulation correlation    

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Research progress on human infection with avian influenza H7N9

Xiaoxin Wu, Lanlan Xiao, Lanjuan Li

《医学前沿（英文）》 2020年 第14卷 第1期   页码 8-20 doi: 10.1007/s11684-020-0739-z

摘要： Since the first case of novel H7N9 infection was reported, China has experienced five epidemics of H7N9. During the fifth wave, a highly pathogenic H7N9 strain emerged. Meanwhile, the H7N9 virus continues to accumulate mutations, and its affinity for the human respiratory epithelial sialic acid 2-6 receptor has increased. Therefore, a pandemic is still possible. In the past 6 years, we have accumulated rich experience in dealing with H7N9, especially in terms of virus tracing, epidemiological research, key site mutation monitoring, critical disease mechanisms, clinical treatment, and vaccine development. In the research fields above, significant progress has been made to effectively control the spread of the epidemic and reduce the fatality rate. To fully document the research progress concerning H7N9, we reviewed the clinical and epidemiological characteristics of H7N9, the key gene mutations of the virus, and H7N9 vaccine, thus providing a scientific basis for further monitoring and prevention of H7N9 influenza epidemics.

关键词： H7N9     pandemic     epidemiology     mutations     vaccine     influenza    

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A study on rapid acid chrome black (MB 7) spectrophotometric determination of ClO

Jing DONG, Huilong WANG

《化学科学与工程前沿（英文）》 2011年 第5卷 第2期   页码 245-251 doi: 10.1007/s11705-010-1003-x

摘要： Experiments were conducted to investigate the degradation of 2,6-dinitro- -cresol (DNPC) in the chlorine dioxide (ClO ) catalytic oxidation process. Pure aluminum oxide was used as the catalyst in this process. The degradation of DNPC by ClO using aluminum oxide as catalyst was systematically studied by varying the experimental parameters, such as pH values, catalyst dosage, the initial concentration of DNPC and ClO , reaction time, etc. Under optimal condition (DNPC concentration 39 mg·L , ClO concentration 0.234 g·L , reaction time 15 min, catalyst dosage 4.7 g·L and pH 4.32), almost complete degradation of DNPC can be achieved. The kinetic studies revealed that the ClO catalytic oxidation degradation of DNPC followed pseudo-first-order kinetics with respect to both ClO and DNPC concentration. The repetitive use of the catalyst was investigated along sequential feed-batch trials. The catalyst performed efficiently after five runs. In addition, a simple and convenient method for the determination of ClO in water was developed by using acid chrome black 7 (MB 7) spectrophotometry in this paper.

关键词： chlorine dioxide     2     6-dinitro-p-cresol (DNPC)     aluminum oxide     water treatment     MB 7 spectrophotometry    

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Erratum to “After Highflyer Crashes, Airborne Wind Energy Regroups” [Engineering 7 (2021) 277–279]

Peter Weiss

《工程（英文）》 2021年 第7卷 第10期   页码 1506-1506 doi: 10.1016/j.eng.2021.08.004

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Resistance to receptor tyrosine kinase inhibition in cancer: molecular mechanisms and therapeutic strategies

null

《医学前沿（英文）》 2015年 第9卷 第2期   页码 134-138 doi: 10.1007/s11684-015-0396-9

摘要：

Drug resistance is a major factor that limits the efficacy of targeted cancer therapies. In this review, we discuss the main known mechanisms of resistance to receptor tyrosine kinase inhibitors, which are the most prevalent class of targeted therapeutic agent in current clinical use. Here we focus on bypass track resistance, which involves the activation of alternate signaling molecules by tumor cells to bypass inhibition and maintain signaling output, and consider the problems of signaling pathway redundancy and how the activation of different receptor tyrosine kinases translates into intracellular signal transduction in different cancer types. This information is presented in the context of research strategies for the discovery of new targets for pharmacological intervention, with the goal of overcoming resistance in order to improve patient outcomes.

关键词： targeted therapy     drug resistance     receptor tyrosine kinases     cancer    

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Universal influenza virus vaccines: what can we learn from the human immune response following exposure to H7

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《医学前沿（英文）》 2017年 第11卷 第4期   页码 471-479 doi: 10.1007/s11684-017-0602-z

摘要：

Several universal influenza virus vaccine candidates based on eliciting antibodies against the hemagglutinin stalk domain are in development. Typically, these vaccines induce responses that target group 1 or group 2 hemagglutinins with little to no cross-group reactivity and protection. Similarly, the majority of human anti-stalk monoclonal antibodies that have been isolated are directed against group 1 or group 2 hemagglutinins with very few that bind to hemagglutinins of both groups. Here we review what is known about the human humoral immune response to vaccination and infection with H7 subtype influenza viruses on a polyclonal and monoclonal level. It seems that unlike vaccination with H5 hemagglutinin, which induces antibody responses mostly restricted to the group 1 stalk domain, H7 exposure induces both group 2 and cross-group antibody responses. A better understanding of this phenomenon and the underlying mechanisms might help to develop future universal influenza virus vaccine candidates.

关键词： universal influenza virus vaccine     hemagglutinin stalk     H7N9    

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Compiling of comprehensive data of human infections with novel influenza A (H7N9) virus

null

《医学前沿（英文）》 2013年 第7卷 第3期   页码 275-276 doi: 10.1007/s11684-013-0285-z

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RGS16 regulated by let-7c-5p promotes glioma progression by activating PI3K-AKT pathway

《医学前沿（英文）》 2023年 第17卷 第1期   页码 143-155 doi: 10.1007/s11684-022-0929-y

摘要： Gliomas are the most common central nervous system tumours; they are highly aggressive and have a poor prognosis. RGS16 belongs to the regulator of G-protein signalling (RGS) protein family, which plays an important role in promoting various cancers, such as breast cancer, pancreatic cancer, and colorectal cancer. Moreover, previous studies confirmed that let-7c-5p, a well-known microRNA, can act as a tumour suppressor to regulate the progression of various tumours by inhibiting the expression of its target genes. However, whether RGS16 can promote the progression of glioma and whether it is regulated by miR let-7c-5p are still unknown. Here, we confirmed that RGS16 is upregulated in glioma tissues and that high expression of RGS16 is associated with poor survival. Ectopic deletion of RGS16 significantly suppressed glioma cell proliferation and migration both in vitro and in vivo. Moreover, RGS16 was validated as a direct target gene of miR let-7c-5p. The overexpression of miR let-7c-5p obviously downregulated the expression of RGS16, and knocking down miR let-7c-5p had the opposite effect. Thus, we suggest that the suppression of RGS16 by miR let-7c-5p can promote glioma progression and may serve as a potential prognostic biomarker and therapeutic target in glioma.

关键词： RGS16     let-7c-5p     glioma     proliferation     migration    

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Novel variants in LAMA3 and COL7A1 and recurrent variant in KRT5 underlying epidermolysis bullosa in

《医学前沿（英文）》 2022年 第16卷 第5期   页码 808-814 doi: 10.1007/s11684-021-0878-x

摘要： Epidermolysis bullosa (EB) is a group of clinically and genetically heterogeneous diseases characterized by trauma-induced mucocutaneous fragility and blister formation. Here, we investigated five Chinese families with EB, and eight variants including a novel nonsense variant (c.47G>A, p.W16*) in LAMA3, a known recurrent variant (c.74C>T, p.P25L) in KRT5, 2 novel (c.2531T>A, p.V844E; c.6811_6814del, p.R2271fs) and 4 known (c.6187C>T, p.R2063W; c.7097G>A, p.G2366D; c.8569G>T, p.E2857*; c.3625_3635del, p.S1209fs) variants in COL7A1 were detected. Notably, this study identified a nonsense variant in LAMA3 that causes EB within the Chinese population and revealed that this variant resulted in a reduction in LAMA3 mRNA and protein expression levels by nonsense-mediated mRNA decay. Our study expands the mutation spectra of Chinese patients with EB.

关键词： epidermolysis bullosa     LAMA3     COL7A1     KRT5     Chinese families    

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Overcoming resistance to endocrine therapy in hormone receptor-positive human epidermal growth factorreceptor 2-negative (HR

Wenjie Zhu, Binghe Xu

《医学前沿（英文）》 2021年 第15卷 第2期   页码 208-220 doi: 10.1007/s11684-020-0795-4

摘要： New targeted therapies have been developed to overcome resistance to endocrine therapy (ET) and improve the outcome of HR /HER2 advanced breast cancer (ABC). We conducted a meta-analysis and systemic review on randomized controlled trials evaluating various targeted therapies in combination with ET in HR /HER2 ABC. PUBMED and EMBASE databases were searched for eligible trials. Hazard ratios (HRs) for progression-free survival (PFS), odds ratios (ORs) for objective response rate (ORR), clinical benefit rate (CBR), and toxicity were meta-analyzed. Twenty-six studies with data on 10 347 patients were included and pooled. The addition of cyclin-dependent kinase 4/6 inhibitors to ET significantly improved median PFS (pooled HR= 0.547, <0.001), overall survival (pooled HR= 0.755, <0.001), and tumor response rates (ORR, pooled OR= 1.478, <0.001; CBR, pooled OR= 1.201, <0.001) with manageable toxicities (pooled OR= 3.280, <0.001). The mammalian targets of rapamycin inhibitors and exemestane were not clinically beneficial for this pooled population including ET-naïve and ET-resistant patients. Moderate improvement in PFS (pooled HR= 0.686, <0.001) yet pronounced toxicities (pooled OR= 2.154, <0.001) were noted in the combination of phosphatidylinositol-4,5-bisphosphate 3-kinase inhibitors with fulvestrant. Future studies are warranted to optimize the population and the dosing sequence of these available options.

关键词： endocrine-resistant     HR+/HER2- advanced breast cancer     randomized clinical trials     meta-analysis     targeted therapy    

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标题 作者 时间 类型 操作

Nicotinic acetylcholine receptor α7 subunit: a novel therapeutic target for cardiovascular diseases

null

期刊论文

单萜类化合物芳樟醇、甲基丁香酚、草蒿脑和香茅醛对配体门控离子通道的作用模式

Amy S. Li, Akimasa Iijima, Junhao Huang, Qing X. Li, Yongli Chen

期刊论文

Resistance of large deformation of the Wushaoling Tunnel F7 soft fault

ZHAO Xufeng, CHEN Haiming, WANG Chunmiao

期刊论文

中国工程科学2005年第7卷总目次

null

期刊论文

Acid Orange 7 degradation using methane as the sole carbon source and electron donor

期刊论文

Time-dependent metabolomics uncover dynamic metabolic adaptions in MCF-7 cells exposed to bisphenol A

期刊论文

Research progress on human infection with avian influenza H7N9

Xiaoxin Wu, Lanlan Xiao, Lanjuan Li

期刊论文

A study on rapid acid chrome black (MB 7) spectrophotometric determination of ClO

Jing DONG, Huilong WANG

期刊论文

Erratum to “After Highflyer Crashes, Airborne Wind Energy Regroups” [Engineering 7 (2021) 277–279]

Peter Weiss

期刊论文

Resistance to receptor tyrosine kinase inhibition in cancer: molecular mechanisms and therapeutic strategies

null

期刊论文

Universal influenza virus vaccines: what can we learn from the human immune response following exposure to H7

null

期刊论文

Compiling of comprehensive data of human infections with novel influenza A (H7N9) virus

null

期刊论文

RGS16 regulated by let-7c-5p promotes glioma progression by activating PI3K-AKT pathway

期刊论文

Novel variants in LAMA3 and COL7A1 and recurrent variant in KRT5 underlying epidermolysis bullosa in

期刊论文

Overcoming resistance to endocrine therapy in hormone receptor-positive human epidermal growth factorreceptor 2-negative (HR

Wenjie Zhu, Binghe Xu

期刊论文