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-acetylglucosamine 1

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Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for benzene alkylation

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 248-257 doi: 10.1007/s11705-019-1853-9

Abstract: piperidine molecules enter the zeolite micropores and protect the zeolite framework from extensive desilication

Keywords： hierarchical ZSM-5 zeolite     protective desilication     piperidine     radial mesopores     benzene alkylation    

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Enhancing thermostability of -mannanase by protective additives

LIU Zhaohui, QI Wei, WU Weina, LIU Yue, HE Zhimin

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 439-442 doi: 10.1007/s11705-008-0062-8

Abstract: sugars (glucose, mannose, fructose, sucrose and chitosan) and polyols (glycol, glycerol and sorbitol) as protectiveMeanwhile, the protective mechanism of the additives against deactivation of enzyme was also discussed

Keywords： protective additive     g/L     orthogonal experimental     combination additive     corresponding    

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The influence of brain death on donor liver and the potential mechanisms of protective intervention

Shui-Jun ZHANG, Tao WANG

Frontiers of Medicine 2011, Volume 5, Issue 1,   Pages 8-14 doi: 10.1007/s11684-011-0109-y

Abstract: influence of brain death on the viability of donor livers and to summarize the mechanisms of the different protective

Keywords： brain death     donor liver    

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Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 543-553 doi: 10.1007/s11705-018-1778-8

Abstract: The hierarchical HZSM-5 was prepared via dealumination and desilication of commercial Al-rich HZSM-5,Dealumination and desilication of Al-rich HZSM-5 zeolites became more effective using a combination of

Keywords： steam treatment     alkaline treatment     hierarchical ZSM-5     methanol aromatization    

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PAK1 is a novel cardiac protective signaling molecule

Yunbo Ke,Xin Wang,Xu Yu Jin,R. John Solaro,Ming Lei

Frontiers of Medicine 2014, Volume 8, Issue 4,   Pages 399-403 doi: 10.1007/s11684-014-0380-9

Abstract:

We review here the novel cardiac protective effects of the multifunctional enzyme, p21-activated kinaseassemble an overview of the recent findings on PAK1 signaling in the heart, particularly its cardiac protectiveWe discuss the anti-adrenergic and antihypertrophic cardiac protective effects of PAK1, as well as its

Keywords： p21-activated kinase 1 (PAK1)     heart    

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Antioxidative potential of metformin: Possible protective mechanism against generating OH radicals

Huibin Guo, Ning Wang, Xiang Li

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1313-2

Abstract: Abstract • Metformin consumes O2−• and OH• induced by PM are proposed. • OH• dominated the oxidation of metformin compared with O2−• • Metformin can prevent the harm of ROS induced by PM to human health. • Antioxidative potential of metformin was first proposed to provide measures. Exposure to particulate matter (PM) can lead to the excessive accumulation of reactive oxygen species (ROS), which causes oxidative stress and endangers human health. In this study, the effects of metformin on PM-induced radicals were investigated, and the antioxidation reaction mechanism of metformin was analyzed by the density functional theory (DFT) method. The corresponding results revealed that the consumption rate of dithiothreitol (DTT) increased as the metformin concentration (0–40 mmol/L) increased under exposure to PM active components. Moreover, the OH radical content decreased as the metformin concentration increased. This result may be related to the consumption of PM-induced OH radicals by metformin, which promotes the DTT consumption rate. Additionally, because the initiation reaction has a high barrier, the oxidation reaction rate between metformin and •O2− is not very fast, although various catalysts may be present in the human environment. Importantly, we found that the barrier of metformin induced by OH radicals is only 9.6 kcal/mol while the barrier of metformin induced by oxygen is 57.9 kcal/mol, which shows that the rate of the •OH-initiated oxidative reaction of metformin is much faster and that this reaction path occurs more easily. By sample analysis, the mean OH radical generation was 55 nmol/min/g (ranging from 5 to 105 nmol/min/g) on haze days and 30 nmol/min/g (ranging from 10 to 50 nmol/min/g) on non-haze days. Moreover, OH radical generation was higher on haze days than on neighboring non-haze days. Taken together, all data suggest that metformin could consume the PM-induced radicals, such as OH radicals and •O2−, thereby providing health protection.

Keywords： Antioxidative potential     Metformin     Mechanism     OH radical     Health protection.    

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Nano-copper ions assembled cellulose-based composite with antibacterial activity for biodegradable personal protective

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1544-1554 doi: 10.1007/s11705-022-2288-2

Abstract: The current SARS-CoV-2 pandemic has resulted in the widespread use of personal protective equipment,transmission, resource consumption, and environmental impact of waste, while also expanding the range of protective

Keywords： cellulose-based     nanocomposite     biodegradable antibacterial fabric     nano-copper ions     face masks    

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Effect of hyperlipidemia on endothelial VCAM-1 expression and the protective role of fenofibrate

WU Jun, LIN Jinchao, HE Zhaochu, OU Biru, GUO Haisen

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 356-358 doi: 10.1007/s11684-007-0068-5

Abstract: The effect of hyperlipidemia and inflammation on endothelial functions was studied. The enrolled included control (basic chow), hyperlipidemia and fenofibrate-treated groups (high fat diet). The hyperlipidemia model was set up by four-week atherogenic diet, followed by a 16-week treatment in the fenofibrate-treated group (fenofibrate 40 mg/kg every day) and without treatment in the hyperlipidemia group, respectively. In the 20th week, serum lipid level and NO levels were measured, and the expression of vascular cell adhesion molecule-1 (VCAM-1) and cell adhesiveness in aortic endothelia observed by computer-aided system. Compared with the control group, hyperlipidemia rats showed lower levels of NO and ncreases in leukocyte accumulation on the endothelial surface, also stronger and more extensive endothelial expression of VCAM-1. In fenofibrate-treated group, the expression of VCAM-1 and leukocyte accumulation on the endothelial surface was decreased, while serum levels of NO were increased as compared with hyperli pidemia group. Hyperlipidemia can inhibit the NO activity and promote the damage of VACA-1 to aortic endothelia. Fenofibrate can effectively prevent the pathogenesis of atherosclerosis by restoring NO levels and down-regulating the VCAM-1 expression.

Keywords： endothelial     16-week treatment     leukocyte accumulation     mg/kg     NO    

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Immunogenicity and protective immunity against otitis media caused by pneumococcus in mice of Hib conjugate

Zeyu Chen,Rong Guo,Jianghong Xu,Chuangjun Qiu

Frontiers of Medicine 2016, Volume 10, Issue 4,   Pages 490-498 doi: 10.1007/s11684-016-0470-y

Abstract:

This study evaluated the immunogenicity and protective immunity of a Hemophilus influenzaeelimination rate of pneumococcus and the inflammation of the middle ear showed the effectiveness of protective

Keywords： conjugate vaccine     pneumococcal surface adhesin A     Hemophilus influenzae b     immunogenicity     otitis media    

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PROTECTIVE ROLES OF D1 PROTEIN TURNOVER AND THE XANTHOPHYLL CYCLE IN TOMATO (

Tao LU, Jiazhi LU, Mingfang QI, Zhouping SUN, Yufeng LIU, Tianlai LI

Frontiers of Agricultural Science and Engineering   Pages 262-279 doi: 10.15302/J-FASE-2021383

Abstract: D1 protein turnover and the xanthophyll cycle (XC) are important photoprotective mechanisms in plants that operate under adverse conditions. Here, streptomycin sulfate (SM) and dithiothreitol (DTT) were used in tomato plants as inhibitors of D1 protein turnover and XC to elucidate their photoprotective impacts under sub-high temperature and high light conditions (HH, 35°C, 1000 µmol·m ·s ). SM and DTT treatments significantly reduced the net photosynthetic rate, apparent quantum efficiency, maximum photochemical efficiency, and potential activity of photosystem II, leading to photoinhibition and a decline in plant biomass under HH. The increase in reactive oxygen species levels resulted in thylakoid membrane lipid peroxidation. In addition, there were increased non-photochemical quenching and decreased chlorophyll pigments in SM and DTT application, causing an inhibition of D1 protein production at both transcriptional and translational levels. Overall, inhibition of D1 turnover caused greater photoinhibition than XC inhibition. Additionally, the recovery levels of most photosynthesis indicators in DTT-treated plants were higher than in SM-treated plants. These findings support the view that D1 turnover has a more important role than XC in photoprotection in tomato under HH conditions.

Keywords： D1 turnover     photoinhibition     photoprotection     photosynthesis     tomato     xanthophyll cycle    

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Glucagon-like peptide-2 exhibits protective effect on hepatic ischemia-reperfusion injury in rats

Naci Topaloğlu,Adem Küçük,Şule Yıldırım,Mustafa Tekin,Havva Erdem,Mustafa Deniz

Frontiers of Medicine 2015, Volume 9, Issue 3,   Pages 368-373 doi: 10.1007/s11684-015-0403-1

Abstract: However, its protective abilities against I/R injury in the liver are unknown.Our data suggested that GLP-2 pretreatment may have a protective effect on liver I/R injury.

Keywords： ischemia/reperfusion     liver     glucagon-like peptide-2     alanine aminotransferase    

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The damage effect of earth penetrating weapons and key scientific problems of deep buried protective

Fan Pengxian,Qian Qihu,Wang Mingyang

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 47-58

Abstract:

The protective engineering is an important constituent part of the deterrentdeveloping by countries with military power have already posed a great threat to the safety of our protective

Keywords： earth penetrating weapons     damage effect     deep buried     protective engineering    

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Research on integration method for facility automation system in protective engineering

Miao Xiaoping,Peng Fusheng,Geng Shibin,Fan Liangkai,Jiang Feng

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 84-94

Abstract: automation system, and proposes the integration method about automation system and facility system in protective

Keywords： protective engineering     facility automation system     system integration    

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decision-making method about the design quality of component-based active load section entity model for protective

Yuan Hui,Wang Fengshan,Xu Jiheng,Fu Chengqun

Strategic Study of CAE 2013, Volume 15, Issue 5,   Pages 106-112

Abstract:

To effectively express the protective engineering space object, and effectivelycomponent-based entity model design scheme and its quality was proposed for the active load section of protectiveAccording to the design variety and validity confirmation in component-based protective engineering entityscientific decision-making practice in entity model design operation for such active load section of protective

Keywords： protective engineering     component     design quality     entity model     intuitionistic fuzzy sets     superiority    

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Protective roles of heat stress on the neurons in hippocampal CA1 region of mice

WANG Chunxu, WANG Hanxing

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 418-422 doi: 10.1007/s11684-007-0082-7

Abstract: The effects of heat stress on the neurons in hippocampal CA1 region of brain ischemia/reperfusion were explored. The mice were pretreated with heat stress followed by ischemia/reperfusion by clipping bilateral cervical commo n arteries for 7 min. Mice were divided randomly into four groups as follows: (1) normal control group; (2) heat stress pretreated subsequent to ischemia/reperfusion group (HS/IR); (3) ischemia/reperfusion group (IR); and (4) heat stress group (HS). Animals in the last three groups were subdivided into three subgroups: 1 d, 4 d, 14 d respectively. The Morris water maze was used to test the ability of learning and memorizing, Nissl staining was used to count the average number of survived neurons in hippocampal CA1 region, and immunohistochemistry combined with image analysis system to detect the changes of Microtubule associated protein 2 (MAP-2) expression. The results showed that mice in IR group exhibited increased escape latency when compared with that of normal, HS and HS/IR groups (<0.01), and the mice in IR group adopted an inefficient search strategy, major in circling and restricted searching manners. Nissl staining results showed a significant reduction in the number of pyramidal neurons in hippocampal CA1 regions in HS/IR and IR groups, with a decrease in IR group (<0.01). Compared with normal group, the expression of MAP-2 in hippocampal CA1 region obviously decreased in IR group (<0.05). The present results indicate that heat stress pretreatment can improve the spatial learning and memorizing function through protection to hippocampal neurons.
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Title Author Date Type Operation

Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for benzene alkylation

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Journal Article

Enhancing thermostability of -mannanase by protective additives

LIU Zhaohui, QI Wei, WU Weina, LIU Yue, HE Zhimin

Journal Article

The influence of brain death on donor liver and the potential mechanisms of protective intervention

Shui-Jun ZHANG, Tao WANG

Journal Article

Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application

Yuehua Fang, Fan Yang, Xuan He, Xuedong Zhu

Journal Article

PAK1 is a novel cardiac protective signaling molecule

Yunbo Ke,Xin Wang,Xu Yu Jin,R. John Solaro,Ming Lei

Journal Article

Antioxidative potential of metformin: Possible protective mechanism against generating OH radicals

Huibin Guo, Ning Wang, Xiang Li

Journal Article

Nano-copper ions assembled cellulose-based composite with antibacterial activity for biodegradable personal protective

Journal Article

Effect of hyperlipidemia on endothelial VCAM-1 expression and the protective role of fenofibrate

WU Jun, LIN Jinchao, HE Zhaochu, OU Biru, GUO Haisen

Journal Article

Immunogenicity and protective immunity against otitis media caused by pneumococcus in mice of Hib conjugate

Zeyu Chen,Rong Guo,Jianghong Xu,Chuangjun Qiu

Journal Article

PROTECTIVE ROLES OF D1 PROTEIN TURNOVER AND THE XANTHOPHYLL CYCLE IN TOMATO (

Tao LU, Jiazhi LU, Mingfang QI, Zhouping SUN, Yufeng LIU, Tianlai LI

Journal Article

Glucagon-like peptide-2 exhibits protective effect on hepatic ischemia-reperfusion injury in rats

Naci Topaloğlu,Adem Küçük,Şule Yıldırım,Mustafa Tekin,Havva Erdem,Mustafa Deniz

Journal Article

The damage effect of earth penetrating weapons and key scientific problems of deep buried protective

Fan Pengxian,Qian Qihu,Wang Mingyang

Journal Article

Research on integration method for facility automation system in protective engineering

Miao Xiaoping,Peng Fusheng,Geng Shibin,Fan Liangkai,Jiang Feng

Journal Article

decision-making method about the design quality of component-based active load section entity model for protective

Yuan Hui,Wang Fengshan,Xu Jiheng,Fu Chengqun

Journal Article

Protective roles of heat stress on the neurons in hippocampal CA1 region of mice

WANG Chunxu, WANG Hanxing

Journal Article