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Jingjuan Hu,Haihua Luo,Jieyan Wang,Wenli Tang,Junqi Lu,Shan Wu,Zhi Xiong,Guizhi Yang,Zhenguo Chen,Tian Lan,Hongwei Zhou,Jing Nie,Yong Jiang,Peng Chen 생화학분자생물학회 2017 Experimental and molecular medicine Vol.49 No.-
Chronic high-salt diet-associated renal injury is a key risk factor for the development of hypertension. However, the mechanism by which salt triggers kidney damage is poorly understood. Our study investigated how high salt (HS) intake triggers early renal injury by considering the ‘gut-kidney axis’. We fed mice 2% NaCl in drinking water continuously for 8 weeks to induce early renal injury. We found that the ‘quantitative’ and ‘qualitative’ levels of the intestinal microflora were significantly altered after chronic HS feeding, which indicated the occurrence of enteric dysbiosis. In addition, intestinal immunological gene expression was impaired in mice with HS intake. Gut permeability elevation and enteric bacterial translocation into the kidney were detected after chronic HS feeding. Gut bacteria depletion by non-absorbable antibiotic administration restored HS loadinginduced gut leakiness, renal injury and systolic blood pressure elevation. The fecal microbiota from mice fed chronic HS could independently cause gut leakiness and renal injury. Our current work provides a novel insight into the mechanism of HS-induced renal injury by investigating the role of the intestine with enteric bacteria and gut permeability and clearly illustrates that chronic HS loading elicited renal injury and dysfunction that was dependent on the intestine.
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Ren, Haibo,Gu, Cuiping,Zhao, Jingjuan,Joo, Sang Woo,Huang, Jiarui Elsevier 2019 APPLIED SURFACE SCIENCE - Vol.473 No.-
<P><B>Abstract</B></P> <P>Co<SUB>9</SUB>S<SUB>8</SUB>@MoS<SUB>2</SUB> core-shell nanoparticles anchored on both sides of reduced graphene oxide (Co<SUB>9</SUB>S<SUB>8</SUB>@MoS<SUB>2</SUB>/rGO) were synthesized via hydrothermal reaction. The core-shell composites were used as an anode material and demonstrated enhanced electrochemical performance with high capacity, capacity retention, cycling stability, and rate capability during cycling tests. The nanocomposites deliver a reversible capacity of 2014.5 mAh g<SUP>−1</SUP> at a high rate of 0.3 A g<SUP>−1</SUP> with a capacity retention efficiency of 82.8% after 200 cycles. The reduced graphene oxide-based three-dimensional framework of the core-shell structure can reduce the internal resistance of the whole electrode, facilitate more Li<SUP>+</SUP> ion insertion and extraction from the crystal structure, and relieve the strain caused by volume change during the lithiation/delithiation process. The electrochemical behaviors could make the composites a great potential anode material for lithium-ion batteries.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Co<SUB>9</SUB>S<SUB>8</SUB>@MoS<SUB>2</SUB> core-shell nanostructure anchored on rGO was developed. </LI> <LI> It involves two-step hydrothermal reaction. </LI> <LI> The Co<SUB>9</SUB>S<SUB>8</SUB>@MoS<SUB>2</SUB>/rGO composites exhibit high stable capacity and rate performance. </LI> <LI> High performance is ascribed to the special hierarchical core-shell nanostructure. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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Huiyun Zhang,Xinyan Peng,Xinling Li,Jingjuan Wu,Xinyu Guo 한국축산식품학회 2017 한국축산식품학회지 Vol.37 No.1
This study was conducted to evaluate the effects of clove extract (CE) (0.25%, 0.5%, 1%, and 2%) on the oxidative stability and quality deterioration of Chinese-style sausage stored for 21 d at 4°C. The addition of clove extract to sausages significantly retarded increases in Thiobarbituric Reactive Substances (TBARS) values (p<0.05), while also controlling the production of protein carbonyls (p<0.05). However, the addition of clove extract promoted reduced thiol group content in sausages (p<0.05). Sausages amended with clove extract also had decreased L* values (p<0.05) and increased a* values (p<0.05) when compared with the control. Similarly, texture deterioration was retarded in sausage containing added clove extract when compared with the control during refrigerated storage. Moreover, the addition of clove extract had no negative effects on the sensory properties of sausages. These results suggested that clove extract was effective at protecting sausages from oxidation and quality deterioration during refrigerated storage for 21 d.
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Blind Separation of Tampered Image Based on JPEG Double Quantization Effect
Duan Xintao,Peng Tao,Huang Jingjing,Li feifei,Wang Jingjuan 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.11
The double quantization effect of JPEG provides important clue for detecting image tampering. Whenever an original JPEG image has undergone a localized tampering and saved in JPEG again, the DCT coefficients of the areas without tampering will be compressed for twice while the tampered areas only suffered once. The Alternating Current (AC) coefficient distribution accord with a Laplace probability density distribution described with parameter. This paper proposed a new double compression probability model of JPEG image to describe the change of DCT coefficients’ statistical properties after the double compression. According to Bayes’ theorem, using the posterior probability, the model can also show the eigenvalues of the double and single compressed block. We assign a dynamic adaptive threshold for the eigenvalues with the Particle Swarm Optimization Algorithm. Then the tampered region is detected and separated automatically by using the threshold. The experimental results show that the method can detect and separate the tamped area effectively and it outperforms other algorithms in terms of the detection result especially when the second compression factor is smaller than the first one. Compared with other traditional methods, the proposed approach could effectively separate the tampered regions from the tampered image without respect to the location, size and number of tampered images.
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Effective hydrogen gas sensor based on NiO@rGO nanocomposite
Ren, Haibo,Gu, Cuiping,Joo, Sang Woo,Zhao, Jingjuan,Sun, Yufeng,Huang, Jiarui Elsevier 2018 Sensors and actuators. B Chemical Vol.266 No.-
<P><B>Abstract</B></P> <P>A NiO@rGO nanocomposite is prepared by a freeze-drying method combined with heat treatment. The morphology and structure are analyzed through X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectra, and X-ray photoelectron spectroscopy. The results clearly show that NiO nanoparticles are uniformly anchored on the surface of the rGO nanosheet. The gas-sensing performance of the nanocomposite is also investigated to detect hydrogen. The NiO@rGO sensor exhibits good gas-sensing performance with high sensitivity, fast response, good reversibility, and selectivity toward hydrogen. The relative response of the sensor to 1% hydrogen is 0.64, the response time is 28 s, and the recovery time is 142 s. The improved sensing performance is due to the effective electron transfer between the NiO nanoparticles and rGO nanosheet.</P> <P><B>Highlights</B></P> <P> <UL> <LI> NiO@rGO nanocomposite consisting of NiO NPs uniformly anchored on rGO is developed. </LI> <LI> The preparation method involves freeze-drying followed by heat treatment. </LI> <LI> NiO@rGO sensor shows high response and selectivity to H<SUB>2</SUB> at low working temperature. </LI> <LI> High performance is ascribed to the electron transfer between NiO NPs and rGO. </LI> </UL> </P>
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