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- 저자 : Yun‑lai Deng (검색결과 3 건)
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Yun Deng,Yali Luo,Bingjun Qian,Zhenmin Liu,Yuanrong Zheng,Xiaoyong Song,Shaojuan Lai,Yanyun Zhao 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.2
The antihypertensive activity of few-flower wildrice was studied in spontaneously hypertensive rats (SHRs)with evaluation of blood pressure lowering effects andtranscriptional levels of the sarcoplasmic reticulum Ca2+-ATPase (SERCA2a) gene that is regulated by AngiotensinII (Ang II). SHRs were randomly divided into 5 groupswith 6 rats each. The systolic blood pressure (SBP) reachedthe lowest point 3 h after administration of a single dose ofpaste made from few-flower wild rice stem powder. TheSBP of SHR in the relatively high amount of RSP (HRSP)administrated group was reduced by approximately 30mmHg, compared to the negative control group, and wasnot significantly different from the positive control IPPcontrol group at a dose of 1.5 mg/kg body weight (p>0.05). RSP administrated SHRs showed a significantly higherSERCA2a transcription level than negative control SHRs(p<0.05). RSP administration had no negative effects onglycometabolism of SHR.
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Liu, Yun-Fu,Zhang, Gong-Wei,Xiao, Zheng-Long,Yang, Yu,Deng, Xiao-Song,Chen, Shi-Yi,Wang, Jie,Lai, Song-Jia Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.8
The NLRP12 (NLR family, pyrin domain containing 12) serves as a suppressor factor in the inflammatory response and protects the host against inflammation-induced damage. In the present study, we aimed to study the polymorphisms of NLRP12 gene and its association with susceptibility to non-specific digestive disorder (NSDD) in rabbits. We re-sequenced the entire coding region of the rabbit NLRP12 gene and detected a total of 19 SNPs containing 14 synonymous and five non-synonymous variations. Among them, the coding SNP (c.1682A>G), which would carry a potential functional implication, was subsequently subjected to genotyping for case-control association study (272 cases and 267 controls). The results revealed that allele A was significantly protective against NSDD with an odds ratio value of 0.884 (95% confidence interval, 0.788 to 0.993; p = 0.038). We also experimentally induced NSDD in growing rabbits by feeding a fibre-deficient diet and subsequently investigated NLRP12 mRNA expression. The mRNA expression of NLRP12 in healthy status was significantly higher than that in severe NSDD (p = 0.0016). The highest expression was observed in individuals carrying the protective genotype AA (p = 0.0108). These results suggested that NLRP12 was significantly associated with the NSDD in rabbits. However, the precise molecular mechanism of NLRP12 involving in the development of rabbit NSDD requires further research.
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Hui Guo,Jin Zhang,Cheng Wang,Yun‑lai Deng 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.8
In this study, the effects of different (online quenching and offline quenching) quenching methods and aging processes (T6and T73) on the crashworthiness and microstructural evolution of three Al–Zn–Mg alloys (G1–G3) were studied by conductingtensile test and axial compression tests at room temperature, combined with optical metallography, electron back scattereddiffraction, and transmission electron microscopy microstructural observations. The obtained results revealed that thecrushing properties of three different Al–Zn–Mg alloys subjected to different quenching methods and aging processes weresignificantly different. Their crushing energy absorption of are ranked as follows: G1 > G3 > G2. The highest total energyabsorption gap (between T6 and T73) is the G1 alloy, and the lowest one is the G3 alloy. The largest total energy absorptiongap between the two quenching methods is the G3 alloy, and the smallest one is the G1 alloy. The G2 alloy with the largesttotal amount of Zn + Mg has the highest number density of matrix precipitates, the largest precipitate gap (between T6 andT73) and the smallest precipitate gap between the two quenching methods. The G3 alloy with the largest Zn/Mg ratio hasthe smallest number density of matrix precipitates, the minimum precipitation gap (between T6 and T73) and the maximumprecipitation gap between the two quenching methods. The G1 alloy with the lowest Zn/Mg ratio has the smallest size ofgrain boundary precipitates and PFZ width, while their largest values are obtained for the G3 alloy with the maximum Zn/Mg ratio. As a crushing resistant structural material, the crushing properties is improved without reducing the strength. Theratio of Zn/Mg should be controlled within the range of 4.57–6.15, while the total amount of Zn + Mg should be controlledwithin the range of 6.18–7.01.
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