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Effects of Co2+ on the erythromycin biosynthesis

DU Wen, CHEN Changhua

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3, Pages 246-250 doi: 10.1007/s11705-007-0044-2

Abstract: Erythromycin biosynthesis is a highly complicated process, which involves both primary metabolism andsecondary metabolism.The specific activities of the key enzymes related to glucose metabolism such as hexose kinase (HK),The specific activities of the enzymes involved in secondary metabolism, such as methylmalonyl-coenzymeMeanwhile, it also enhances the flux of the glucose metabolism pathway.

Keywords： secondary metabolism organic fermentation process phosphofructokinase

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Design of tandem genes cluster for isoflavone engineering

Xunli XIA PhD , Guangxiao YANG PhD , Guangyuan HE PhD ,

Frontiers of Medicine 2009, Volume 3, Issue 3, Pages 292-296 doi: 10.1007/s11684-009-0057-y

Abstract: A tandem genes cluster () of secondary metabolites of plant isoflavones was constructed by using the

Keywords： isoflavones engineering secondary metabolism tandem genes cluster

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Proteins moonlighting in tumor metabolism and epigenetics

Lei Lv, Qunying Lei

Frontiers of Medicine 2021, Volume 15, Issue 3, Pages 383-403 doi: 10.1007/s11684-020-0818-1

Abstract: The signal−moonlighting protein−metabolism axis facilitates the adaptation of tumor cells under varying

Keywords： moonlighting function tumor metabolism epigenetics

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Vanadium metabolism investigation using substance flow and scenario analysis

Fangfang ZHANG, Huiquan LI, Bo CHEN, Xue GUAN, Yi ZHANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2, Pages 256-266 doi: 10.1007/s11783-013-0585-1

Abstract: Vanadium is a vital strategic resource, and vanadium metabolism is an important part of the nationalThis study conducts accounting and scenario analysis on the life cycle of vanadium metabolism in ChinaA scenario analysis was conducted to analyze the future developmental trend of vanadium metabolism in

Keywords： metabolism vanadium industry substance flow analysis scenario analysis

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Insulin resistance and the metabolism of branched-chain amino acids

Jingyi Lu, Guoxiang Xie, Weiping Jia, Wei Jia

Frontiers of Medicine 2013, Volume 7, Issue 1, Pages 53-59 doi: 10.1007/s11684-013-0255-5

Abstract: particularly responsive to the inhibitory insulin action on amino acid release by skeletal muscle and their metabolism

Keywords： branched-chain amino acids leucine isoleucine valine insulin resistance

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Research progress on FASN and MGLL in the regulation of abnormal lipid metabolism and the relationship

Jingyue Zhang, Yawen Song, Qianqian Shi, Li Fu

Frontiers of Medicine 2021, Volume 15, Issue 5, Pages 649-656 doi: 10.1007/s11684-021-0830-0

Abstract: Tumorigenesis involves metabolic reprogramming and abnormal lipid metabolism, which is manifested byBoth enzymes play an important role in lipid metabolism and are associated with tumor-related signalingarticle introduces the structures and functions of FASN and MGLL, their relationship with abnormal lipid metabolism

Keywords： FASN MGLL lipid metabolism tumor invasion metastasis

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Mechanisms for simultaneous ozonation of sulfamethoxazole and natural organic matters in secondary effluent

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1368-0

Abstract:

• SMX was mainly degraded by hydrolysis, isoxazole oxidation and double-bond addition.

Keywords： Sulfamethoxazole Ozonation Natural organic matters Secondary effluent Degradation mechanism

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Anaerobic ammonia oxidizing bacteria: ecological distribution, metabolism, and microbial interactions

Dawen Gao, Xiaolong Wang, Hong Liang, Qihang Wei, Yuan Dou, Longwei Li

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1035-x

Abstract: Anammox (ANaerobic AMMonia OXidation) is a newly discovered pathway in the nitrogen cycle. This discovery has increased our knowledge of the global nitrogen cycle and triggered intense interest for anammox-based applications. Anammox bacteria are almost ubiquitous in the suboxic zones of almost all types of natural ecosystems and contribute significant to the global total nitrogen loss. In this paper, their ecological distributions and contributions to the nitrogen loss in marine, wetland, terrestrial ecosystems, and even extreme environments were reviewed. The unique metabolic mechanism of anammox bacteria was well described, including the particular cellular structures and genome compositions, which indicate the special evolutionary status of anammox bacteria. Finally, the ecological interactions among anammox bacteria and other organisms were discussed based on substrate availability and spatial organizations. This review attempts to summarize the fundamental understanding of anammox, provide an up-to-date summary of the knowledge of the overall anammox status, and propose future prospects for anammox. Based on novel findings, the metagenome has become a powerful tool for the genomic analysis of communities containing anammox bacteria; the metabolic diversity and biogeochemistry in the global nitrogen budget require more comprehensive studies.

Keywords： Anammox Metabolism Metagenome Ecological distribution Microbial interactions

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Metabolism and immunity in breast cancer

Deyu Zhang, Xiaojie Xu, Qinong Ye

Frontiers of Medicine 2021, Volume 15, Issue 2, Pages 178-207 doi: 10.1007/s11684-020-0793-6

Abstract: Breast cancer cells generate energy through increased glucose metabolism.Lipid metabolism contributes to biological signal pathways and forms cell membranes except energy generationHere, we review the recent findings related to abnormal metabolism and immune characteristics, regulatory

Keywords： breast cancer metabolism immunity cancer stem cells

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Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3, Pages 348-361 doi: 10.1007/s11783-011-0343-1

Abstract: include a process analysis (PA) scheme for gas and particulate matter (PM) to study the formation of secondarySecondary nitrate is formed in the urban areas from near the ground to a few hundred meters above theThe secondary nitrate formation rate in rural areas is lower due to lower NO .reactions with water vapor and the N O heterogeneous reactions with particle-bound water are important for secondaryreactions are most import near the surface to a few hundred meters above surface with a maximum modeled net secondary

Keywords： secondary nitrate aerosol N₂O₅ heterogeneous reaction process analysis

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Dynamic simulation of urban water metabolism under water environmental carrying capacity restrictions

Weihua ZENG,Bo WU,Ying CHAI

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1, Pages 114-128 doi: 10.1007/s11783-014-0669-6

Abstract: A revised concept for urban water metabolism (UWM) is presented in this study to address the inadequaciescan be analyzed to increase the water environmental carrying capacity (WECC) of the new urban water metabolism

Keywords： urban water metabolism system (UWMS) system dynamic simulation water environmental carrying capacity

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Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters

Han-peng Zhang,Yi Liao,Hui-xia Luo

Frontiers of Engineering Management 2014, Volume 1, Issue 3, Pages 318-321 doi: 10.15302/J-FEM-2014042

Abstract: is necessary for subsequent resource distribution planning that get expected relief time considering secondarythis research is to develop a two-echelon emergency resource distribution model under condition of secondary

Keywords： simulation secondary disasters two-echelon vehicle routing model

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Formation of secondary inorganic aerosol in a frigid urban atmosphere

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1452-0

Abstract:

•Harbin showed relatively high threshold RH (80%) for apparent increase of SOR.

Keywords： Haze Sulfate Nitrate Heterogeneous chemistry Biomass burning Northeast China

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Expression profiles of genes and enzymes related to ascorbic acid metabolism in fruits of

Yingying CHEN,Zhihui ZHAO,Jin ZHAO,Mengjun LIU

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 2, Pages 131-136 doi: 10.15302/J-FASE-2016096

Abstract: The accumulation of AsA, the expression patterns of the nine genes related to AsA metabolism as well

Keywords： Chinese jujube ascorbic acid metabolism gene enzyme

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PCDD/Fs emission, risk characterization, and reduction in China’s secondary copper production industry

Haiqian LI, Yonglong LU, Li LI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4, Pages 589-597 doi: 10.1007/s11783-013-0495-2

Abstract: Secondary copper production is one of the key polychlorinated dibenzo- -dioxins and dibenzofurans (PCDDIn 2004, when the Stockholm Convention entered into force in China, PCDD/Fs emissions from secondaryIn this paper, PCDD/Fs emission dynamics from secondary copper industry were discussed and cumulativeRiver Delta, Pearl River Delta and central regions were among the top three of dioxin emissions from secondaryFrom 2009 to 2015, the PCDD/Fs emission dynamics in the secondary copper industry were presented through

Keywords： polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) secondary copper production