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1Genome editing with RNA-guided Cas9 nuclease in Zebrafish embryos显示文摘有类型 II 的最近的进展定期聚类 interspaced 短 palindromic 重复(CRISPR ) 系统诺言染色体编辑的一条改进途径。然而,在模型有机体的这个系统的适用性和效率例如 zebrafish,几乎没被学习。这里,我们报导那指导 RNA 的 Cas9 核酸酶高效地便于染色体以一种简单、柔韧的方式在哺乳动物的房间和 zebrafish 胚胎编辑。当特定的 Cas/gRNA 被用来在 vivo 在 zebrafish 胚胎指向任何一个 etsrp, gata4 或 gata5 时,超过 35% 地点特定的体的变化被发现。Cas9/gRNA 高效地在结果导致了 etsrp 或 gata5 的 biallelic 变换体的房间,在 etsrp 在 fau 异种胚胎或贲门 bifida 显型 > tm236a 异种胚胎。最后,我们成功地完成了 Cas9/gRNA 系统在 zebrafish 胚胎导致的 mloxP 顺序的地点特定的插入。这些结果证明 Cas9/gRNA 系统有为 zebrafish 和另外的模型有机体成为一个简单、柔韧、有效的反向的基因工具的潜力。和另外的染色体工程技术, Cas9 系统为在生物学,农业,环境研究和药的应用是有希望的。Nannan Chang Changhong Sun Lu Gao Dan Zhu Xiufei Xu Xiaojun Zhu Jing-Wei Xiong Jianzhong Jeff Xi 2013Cell Research2013,23,4:155
2Enhanced efficiency of generating induced pluripotent stem (iPS) cells from human somatic cells by a combination of six transcription factors显示文摘Jing Liao Zhao Wu Ying Wang Lu Cheng Chun Cui Yuan Gao Taotao Chen Lingjun Rao Siye Chen Nannan Jia Huiming Dai Shunmei Xin Jiuhong Kang Gang Pei Lei Xiao 2008Cell Research2008,18,5:61
3Efficient and Specific Modifications of the Drosophila Genome by Means of an Easy TALEN Strategy显示文摘技术开发总是是在生物医学的研究驾驶突破的力量之一。自从托马斯·摩根的时间起,一步一步地, Drosophilists 为操作并且机能上地把开发了强大的基因工具为改进这些技术并且开发新技术的果蝇染色体,而是房间仍然大,今天特别作为生物学家开始系统地学习不同模型有机体的功能的 genomics ,包括人,以一种高产量的方式。这里,我们报导,第一次在果蝇,为借助于改进抄写在很高的效率修改果蝇染色体的一个快速、容易、高度特定的方法像使活跃之物的受动器核酸酶(TALEN ) 策略。我们利用了最近发达的单位集会策略装配设计修改黄基因的二特定的 TALEN (在性染色体上) 并且新奇正染色体的基因。TALEN 的 mRNAs 随后被注入果蝇胚胎。从 31.2% 注射 F0 肥沃的苍蝇,我们检测了包含黄基因的可继承的修正。从到可继承的修正的察觉的特定的 TALEN 的建设的全部过程能在一个月以内被完成。在果蝇的这个调停 TALEN 的染色体修正方法的潜在的应用程序被讨论。Jiyong Liu Changqing Li Zhongsheng Yu Peng Huang Honggang Wu Chuanxian Wei Nannan Zhu Yan Shen Yixu Chen Bo Zhang Wu-Min Deng Renjie Jiao 2012Journal of Genetics and Genomics2012,39,5:43
4Single-cell RNA-seq uncovers dynamic processes and critical regulators in mouse spermatogenesis显示文摘Yao Chen Yuxuan Zheng Yun Gao Zhen Lin Suming Yang Tongtong Wang Qiu Wang Nannan Xie Rong Hua Mingxi Liu Jiahao Sha Michael D. Griswold Jinsong Li Fuchou Tang Ming-Han Tong 2018Cell Research2018,28,9:26
5Differential Fault Attack on Camellia显示文摘ZHOU Yongbin WU Wenling XU Nannan FENG Dengguo 2009Chinese Journal of Electronics2009,18,1:15
6Hierarchical Control of Ride Height System for Electronically Controlled Air Suspension Based on Variable Structure and Fuzzy Control Theory显示文摘The current research of air suspension mainly focuses on the characteristics and design of the air spring. In fact, electronically controlled air suspension(ECAS) has excellent performance in flexible height adjustment during different driving conditions. However, the nonlinearity of the ride height adjusting system and the uneven distribution of payload affect the control accuracy of ride height and the body attitude. Firstly, the three-point measurement system of three height sensors is used to establish the mathematical model of the ride height adjusting system. The decentralized control of ride height and the centralized control of body attitude are presented to design the ride height control system for ECAS. The exact feedback linearization method is adopted for the nonlinear mathematical model of the ride height system. Secondly, according to the hierarchical control theory, the variable structure control(VSC) technique is used to design a controller that is able to adjust the ride height for the quarter-vehicle anywhere, and each quarter-vehicle height control system is independent. Meanwhile, the three-point height signals obtained by three height sensors are tracked to calculate the body pitch and roll attitude over time, and then by calculating the deviation of pitch and roll and its rates, the height control correction is reassigned based on the fuzzy algorithm. Finally, to verify the effectiveness and performance of the proposed combined control strategy, a validating test of ride height control system with and without road disturbance is carried out. Testing results show that the height adjusting time of both lifting and lowering is over 5 s, and the pitch angle and the roll angle of body attitude are less than 0.15?. This research proposes a hierarchical control method that can guarantee the attitude stability, as well as satisfy the ride height tracking system.XU Xing ZHOU Kongkang ZOU Nannan JIANG Hong CUI Xiaoli 2015Chinese Journal of Mechanical Engineering2015,28,5:13
7Carbon pools and fluxes in the China Seas and adjacent oceans显示文摘The China Seas include the South China Sea, East China Sea, Yellow Sea, and Bohai Sea. Located off the Northwestern Pacific margin, covering 4700000 km^2 from tropical to northern temperate zones, and including a variety of continental margins/basins and depths, the China Seas provide typical cases for carbon budget studies. The South China Sea being a deep basin and part of the Western Pacific Warm Pool is characterized by oceanic features; the East China Sea with a wide continental shelf, enormous terrestrial discharges and open margins to the West Pacific, is featured by strong cross-shelf materials transport; the Yellow Sea is featured by the confluence of cold and warm waters; and the Bohai Sea is a shallow semiclosed gulf with strong impacts of human activities. Three large rivers, the Yangtze River, Yellow River, and Pearl River, flow into the East China Sea, the Bohai Sea, and the South China Sea, respectively. The Kuroshio Current at the outer margin of the Chinese continental shelf is one of the two major western boundary currents of the world oceans and its strength and position directly affect the regional climate of China. These characteristics make the China Seas a typical case of marginal seas to study carbon storage and fluxes. This paper systematically analyzes the literature data on the carbon pools and fluxes of the Bohai Sea,Yellow Sea, East China Sea, and South China Sea, including different interfaces(land-sea, sea-air, sediment-water, and marginal sea-open ocean) and different ecosystems(mangroves, wetland, seagrass beds, macroalgae mariculture, coral reefs, euphotic zones, and water column). Among the four seas, the Bohai Sea and South China Sea are acting as CO_2 sources, releasing about0.22 and 13.86–33.60 Tg C yr^(-1) into the atmosphere, respectively, whereas the Yellow Sea and East China Sea are acting as carbon sinks, absorbing about 1.15 and 6.92–23.30 Tg C yr^(-1) of atmospheric CO_2, respectively. Overall, if only the CO_2 exchange at the sea-air interface is considered, the Chinese marginal seas appear to be a source of atmospheric CO_2, with a net release of 6.01–9.33 Tg C yr^(-1), mainly from the inputs of rivers and adjacent oceans. The riverine dissolved inorganic carbon (DIC) input into the Bohai Sea and Yellow Sea, East China Sea, and South China Sea are 5.04, 14.60, and 40.14 Tg C yr^(-1),respectively. The DIC input from adjacent oceans is as high as 144.81 Tg C yr^(-1), significantly exceeding the carbon released from the seas to the atmosphere. In terms of output, the depositional fluxes of organic carbon in the Bohai Sea, Yellow Sea, East China Sea, and South China Sea are 2.00, 3.60, 7.40, and 5.92 Tg C yr^(-1), respectively. The fluxes of organic carbon from the East China Sea and South China Sea to the adjacent oceans are 15.25–36.70 and 43.93 Tg C yr^(-1), respectively. The annual carbon storage of mangroves, wetlands, and seagrass in Chinese coastal waters is 0.36–1.75 Tg C yr^(-1), with a dissolved organic carbon(DOC) output from seagrass beds of up to 0.59 Tg C yr^(-1). Removable organic carbon flux by Chinese macroalgae mariculture account for 0.68 Tg C yr^(-1) and the associated POC depositional and DOC releasing fluxes are 0.14 and 0.82 Tg C yr^(-1), respectively. Thus, in total, the annual output of organic carbon, which is mainly DOC, in the China Seas is 81.72–104.56 Tg C yr^(-1). The DOC efflux from the East China Sea to the adjacent oceans is 15.00–35.00 Tg C yr^(-1). The DOC efflux from the South China Sea is 31.39 Tg C yr^(-1). Although the marginal China Seas seem to be a source of atmospheric CO_2 based on the CO_2 flux at the sea-air interface, the combined effects of the riverine input in the area, oceanic input, depositional export,and microbial carbon pump(DOC conversion and output) indicate that the China Seas represent an important carbon storage area.Nianzhi JIAO Yantao LIANG Yongyu ZHANG Jihua LIU Yao ZHANG Rui ZHANG Meixun ZHAO Minhan DAI Weidong ZHAI Kunshan GAO Jinming SONG Dongliang YUAN Chao LI Guanghui LIN Xiaoping HUANG Hongqiang YAN Limin HU Zenghu ZHANG Long WANG Chunjie CAO Yawei LUO Tingwei LUO Nannan WANG Hongyue DANG Dongxiao WANG Si ZHANG 2018Science China Earth Sciences2018,61,11:12
8Gold nanorod-photosensitizer conjugate with extracellular pH-driven tumor targeting ability for photothermal/photodynamic therapy显示文摘氯 e6-pHLIP <候补选手class=“ a-plus-plus ”> ss -AuNRs,金使nanorod具有感光性结合包含 pH (低)有给予细胞外的 pH 的一张二硫化物契约的插入肽( pHLIP )( pH <候补选手class=“ a-plus-plus ”> e )-driven 肿瘤指向能力,成功地为光力学的 bimodal 和 photothermal 治疗被开发了。在这 bimodal 治疗,氯 e6 (Ce6 ) ,第二代的 photosensitizer (PS ) ,被用于光力学的治疗(太平洋夏季时间) 。金 nanorods (AuNRs ) 作为 Ce6 的 nanocarrier 和 quencher 为 photothermal 治疗(PTT ) 并且也被用作一个过高热代理人。pHLIPss 作为一根驾驶 pHe 的指向探针被设计在低 pH 在癌症房间提高 Ce6 和 AuNRs 的累积。在 Ce6-pHLIP < 潜水艇 class= “ a-plus-plus ” > ss -AuNRs, Ce6 接近并且由 AuNRs 熄灭了,引起小太平洋夏季时间效果。当暴露了到正常生理的 pH 时 7.4, Ce6-pHLIP < 潜水艇 class= “ a-plus-plus ” > ss -AuNRs 泛泛地与房间膜联系。然而,曾经暴露了到酸的 pH 6.2, pHLIP 活跃地插入到房间膜,和 conjugates 是进房间的 translocated。当这发生时, Ce6 由于二硫化物与 AuNRs 分开细胞内部的谷胱甘肽(GSH ) 引起的契约劈开,和汗衫氧在光之上为太平洋夏季时间被生产照耀。作为单个 PTT 代理人,另外, AuNRs 能由提高的浸透和保留(EPR ) 效果在肿瘤提高 PS 的累积。因此由我们的数据显示了当暴露了到酸的 pH 时, Ce6-pHLIP < 潜水艇 class= “ a-plus-plus ” > ss -AuNRs 能为癌症治疗完成 synergistic PTT/PDT bimodality。Nannan Wang Zilong Zhao Yifan Lv Huanhuan Fan Huarong Bai Hongmin Meng Yuqian Long Ting Fu Xiaobing Zhang Weihong Tan 2014Nano Research2014,7,9:11
9Antibacterial mechanism of Ginkgo biloba leaf extract when applied to Shewanella putrefaciens and Saprophytic staphylococcus显示文摘The antimicrobial mechanism of Ginkgo biloba leaf extracts(GBLE)when applied to predominant spoilage bacteria(Shewanella putrefaciens and Saprophytic staphylococcus)on refrigerated pomfret and minimal inhibitory concentrations(MICs)were measured by the plate counting method.GBLE at MIC and 2MIC were prepared in tryptic soy broth(TSB)medium and equivalent amounts of sterile distilled water were used in place of GBLE as a control group.The impact of GBLE on the growth of bacteria,the permeability of cell membrane,and cell wall were also investigated by growth curve of bacteria,alkaline phosphates activity(AKP),and electrical conductivity.A scanning electron microscope(SEM)was used to study the effects of GBLE on the cellular structure of S.putrefaciens and S.staphylococcus.The results showed that the MICs of GBLE when applied to S.putrefaciens and S.staphylococcus were 100 mg/mL,the inhibitory rates of MIC and 2MIC concentrations of GBLE when applied to S.putrefaciens were 36.11%and 100%,while 27.78%and 62.22%for S.staphylococcus.Meanwhile,GBLE inhibited the growth of S.putrefaciens and S.staphylococcus until the number of cells at 2MIC values decreased to 0 and 4.29 log CFU/mL,respectively,after 24 h.The electrical conductivity of bacteria increased with GBLE treatment,which was followed by an increased leakage of AKP.The SEM revealed that the structure of bacterial cells was destroyed and the bacteria began to be adhere to each other.The inhibition effect of GBLE when applied to S.putrefaciens and S.staphylococcus was related to the damage of cell membrane and cell wall.It was also revealed that GBLE damages the morphology of bacteria and had stronger effects on the cell membrane of S.putrefaciens than that of S.staphylococcus.Nannan Zhang Weiqing Lan Qian Wang Xiaohong Sun Jing Xie 2018Aquaculture and Fisheries2018,3,4:11
10Effects of metabolizable energy and crude protein levels on laying performance,egg quality and serum biochemical indices of Fengda-1 layers显示文摘This study was conducted to investigate the effects of dietary ME and CP levels on laying performance, egg quality and serum biochemical indices of Fengda-1 layers. In a 2 × 3 factorial arrangement, 2,400 Fengda-1 layers(32 wk of age) were randomly assigned to 6 experimental diets with 2,650 and 2,750 kcal of ME/kg of diet, each containing 14.50%, 15.00% and 15.50% CP, respectively. Each dietary treatment was replicated 5 times, and feed and water were provided ad libitum. The trial lasted for 10 wk, including a2-week acclimation period and an 8-week experimental period. Our results showed that ADFI decreased as the ME level of diet increased from 2,650 to 2,750 kcal/kg(P< 0.05). Layers fed diets with 2,750 kcal/kg ME exhibited higher mortality than those fed with 2,650 kcal/kg ME(P < 0.05). Birds fed with 14.50% and15.00% CP had higher egg production(EP) and egg mass(EM) than those fed with 15.50% CP(P < 0.05).Yolk color increased as the ME level of the diet increased from 2,650 to 2,750 kcal/kg, however, the eggshell thickness decreased(P < 0.05). Serum concentrations of uric acid and triglyceride in layers fed diets with 2,750 kcal/kg ME were higher than those fed diets with 2,650 kcal/kg ME(P < 0.05). There was no significant interaction between ME and CP on laying performance, egg quality, or serum biochemical indices(P > 0.05). Based on the data under the experimental conditions, the optimal dietary ME and CP levels of Fengda-1 layers are 2,650 kcal/kg and 15.00%(33 to 41 wk of age).Yang Ding Xingchen Bu Nannan Zhang Lanlan Li Xiaoting Zou 2016Animal Nutrition2016,,2:11
11Predictive values of multidetector-row computed tomography combined with serum tumor biomarkers in preoperative lymph node metastasis of gastric cancer显示文摘Objective: Multidetector-row computed tomography(MDCT) and serum tumor biomarkers are commonly used to evaluate the preoperative lymph node metastasis and the clinical staging of gastric cancer(GC). This study intends to evaluate the clinical predictive value of MDCT and serum tumor biomarkers in lymph node metastasis of GC.Methods: The clinicopathologic data of 445 GC patients who underwent radical gastrectomy were retrospectively analyzed to evaluate the diagnostic value of MDCT and serum tumor biomarkers in lymph node metastatic staging of GC before surgery.Results: With the multinomial logistic regression analysis, the independent relative factors of lymph node metastasis of GC were identified as tumor size, depth of tumor invasion, vessel invasion, vascular embolus, and soft tissue invasion. The optimal critical value of the short diameter of lymph nodes detected by MDCT scanning for evaluation of preoperative lymph node metastasis was 6.0 mm, with 75.7% as predictive accuracy of lymph node metastasis compared to the postoperative pathological results of GC patients. In addition, the critical value of the short diameter of lymph nodes combined with serum tumor biomarkers [including carbohydrate antigen(CA)-724 and CA-199] could show an enhancement of predictive sensitivity of lymph node metastasis(up to 89.3%) before surgery.Conclusions: MDCT combined with serum tumor biomarkers should be adopted to improve preoperative sensitivity and accuracy of lymph node metastasis for GC patients.Huihui Bai Jingyu Deng Nannan Zhang Huifang Liu Wenting He Jinyuan Liu Han Liang 2019Chinese Journal of Cancer Research2019,31,3:11
12Hydrogen peroxide primes heart regeneration with a derepression mechanism显示文摘当成年的人的心很限制了再生潜力时,成年 zebrafish 心能充分在 20% 室的切除术以后再生。尽管以前的报告建议象 FGF 和 PDGF 那样的发展发信号小径在成年的心新生被再使用,内在的细胞内部的机制仍然保持大部分未知。这里,我们显示出那 H 2 O 2 充当新奇 epicardial 和心肌的信号在成年 zebrafish 为新生告知心。未经触动的心的实时成像揭示了高度局部性的 H 2 O 2(~ 30 μ M ) 在在切除术地点的心外膜和邻近的紧缩的心肌层的生产。减少的 H 2有 Duox 禁止者 diphenyleneiodonium (点每英寸)或 apocynin 的 O 2形成,或清除 H 2当时,由过氧化氢酶 overexpression 的 O 2显著地损害了心脏的新生外长的 H 2 O 2在心脏的新生上救了点每英寸的禁止的效果,显示那 H 2 O 2是在这个过程的一个必要、足够的信号。机械学地,提高了 H 2 O 2 使动摇氧化还原作用敏感的磷酸酶 Dusp6 并且因此增加了 Erk1/2 的 phosphorylation。当 dusp6 的转基因的 overexpression 损害了心脏的新生时, Dusp6 禁止者 BCI 完成了类似的支持 regenerative 效果。H 2 O 2 在招募起一个双作用通过二条相对独立的小径的有免疫力的房间和支持的心新生。我们结束那 H 2 潜在地从 Duox/Nox2 产生的 O 2 由解开通过包含 Dusp6 的 derepression 机制发信号的地图 kinase 在 zebrafish 支持心新生。Peidong Han Xiao-Hai Zhou Nannan Chang Cheng-Lu Xiao Shouyu Yah He Ren Xin-Zhuang Yang Mei-Ling Zhang Qing Wu Boyang Tang Ju-Peng Diao Xiaojun Zhu Chuanmao Zhang Chuan-Yun Li Heping Cheng Jing-Wei Xiong 2014Cell Research2014,24,9:10
13Expression of OTUB1 in hepatocellular carcinoma and its effects on HCC cell migration and invasion显示文摘Qinggan Ni Jiahui Chen Xia Li Xiaodong Xu Nannan Zhang Ang Zhou Bin Zhou Qian Lu Zhong Chen 2017Acta Biochimica et Biophysica Sinica2017,49,8:9
14DNA damage triggers tubular endoplasmic reticulum extension to promote apoptosis by facilitating ER-mitochondria signaling显示文摘endoplasmic 蜂窝胃(嗯) 由原子信封, perinuclear 表和一个外部管状的网络组成。外设嗯并且线粒体形式在特定的子域的紧密的接触,它协调二个细胞器的函数并且为象 Ca 2+ 转移和 apoptosis 那样的多重细胞的进程被要求。然而,它大部分是未知的怎么嗯形态学并且嗯线粒体发信号动态地在象 DNA 那样的不同生理或病理学的条件下面被调整损坏。这里,我们证明外设,管状嗯响应 DNA 经历重要扩展损坏,和那这个过程依赖于嗯塑造蛋白质 REEP1, REEP2 和 EI24 (别名 PIG8 ) 的调停 p53 的 transcriptional 激活。这通过 EI24 和 mitochondrial 支持嗯线粒体接触的形成外部膜蛋白质 VDAC2,便于 Ca 2+ 转移从嗯到线粒体并且支持 DNA 导致损坏的 apoptosis。因此,我们识别包含改变在的一条唯一的 DNA 损坏反应小径嗯形态学,发信号的嗯线粒体,和 apoptosis。Pengli Zheng Qingzhou Chen Xiaoyu Tian Nannan Qian Peiyuan Chai Bing Liu Junjie Hu Craig Blackstone Desheng Zhu Junlin Teng Jianguo Chen 2018Cell Research2018,28,8:9
15Local icariin application enhanced periodontal tissue regeneration and relieved local inflammation in a minipig model of periodontitis显示文摘Periodontitis is an inflammatory autoimmune disease. Treatment should alleviate inflammation, regulate the immune reaction and promote periodontal tissue regeneration. Icariin is the main active ingredient of Epimedii Folium, and it is a promising compound for the enhancement of mesenchymal stem cell function, promotion of bone formation, inhibition of bone resorption, alleviation of inflammation and regulation of immunity. The study investigated the effect of icariin on periodontal tissue regeneration in a minipig model of periodontitis. The minipig model of periodontitis was established. Icariin was injected locally. The periodontal clinical assessment index, a computed tomography(CT) scan, histopathology and enzyme-linked immune sorbent assay(ELISA)were used to evaluate the effects of icariin. Quantitative analysis results 12 weeks post-injection demonstrated that probing depth,gingival recession, attachment loss and alveolar bone regeneration values were(3.72 ± 1.18) mm vs.(6.56 ± 1.47) mm,(1.67 ± 0.59)mm vs.(2.38 ± 0.61) mm,(5.56 ± 1.29) mm vs.(8.61 ± 1.72) mm, and(25.65 ± 5.13) mm3 vs.(9.48 ± 1.78) mm3 in the icariin group and0.9% NaCl group, respectively. The clinical assessment, CT scan, and histopathology results demonstrated significant enhancement of periodontal tissue regeneration in the icariin group compared to the 0.9% NaCl group. The ELISA results suggested that the concentration of interleukin-1 beta(IL-1β) in the icariin group was downregulated compared to the 0.9% NaCl group, which indicates that local injection of icariin relieved local inflammation in a minipig model of periodontitis. Local injection of icariin promoted periodontal tissue regeneration and exerted anti-inflammatory and immunomodulatory function. These results support the application of icariin for the clinical treatment of periodontitis.Xiuli Zhang Nannan Han Guoqing Li Haoqing Yang Yangyang Cao Zhipeng Fan Fengqiu Zhang 2018International Journal of Oral Science2018,10,3:9
16Pyrethroid resistance in mosquitoes显示文摘重复的血费用在整个他们的寿命钟声使蚊子成为了许多疾病代理人的理想的传输器。向量控制是为联系蚊子的疾病的控制的当前的全球策略的很重要的部分,杀虫药剂申请是在这个努力的最重要的部件。Pyrethroids,说明 25% 世界杀虫药剂市场,当前是为蚊子的室内的控制的最广泛地使用的杀虫药剂,唯一的化学药品为蚊帐的处理被推荐,为在非洲阻止疟疾的主要工具。然而,忍受蚊子的疾病现在是苏醒的,主要因为在蚊子向量和寄生虫的反寄生虫抗药性发展了的杀虫药剂电阻。这篇论文考察我们在在蚊子带 topyrethroid 电阻的敏感管理新陈代谢的解毒和目标地点的发展的分子的机制的当前的知识。NANNAN LIU QIANG XU FANG ZHU LEE ZHANG 2006Insect Science2006,13,3:8
17Effects of fumaric acid supplementation on methane production and rumen fermentation in goats fed diets varying in forage and concentrate particle size显示文摘Background: In rumen fermentation, fumaric acid(FA) could competitively utilize hydrogen with methanogenesis to enhance propionate production and suppress methane emission, but both effects were diet-dependent. This study aimed to explore the effects of FA supplementation on methanogenesis and rumen fermentation in goats fed diets varying in forage and concentrate particle size.Methods: Four rumen-cannulated goats were used in a 4 × 4 Latin square design with a 2 × 2 factorial arrangement of treatments: low or high ratio of forage particle size: concentrate particle size(Fps:Cps), without or with FA supplementation(24 g/d). Fps:Cps was higher in the diet with chopped alfalfa hay plus ground corn than in that with ground alfalfa hay plus crushed corn.Results: Both increasing dietary Fps:Cps and FA supplementation shifted ruminal volatile fatty acid(VFA) patterns toward more propionate and less acetate in goats. An interaction between dietary Fps:Cps and FA supplementation was observed for the ratio of acetate to propionate(A:P), which was more predominant when FA was supplemented in the low-Fps:Cps diet. Methane production was reduced by FA, and the reduction was larger in the low-Fps:Cps diet(31.72%) than in the high-Fps:Cps diet(17.91%). Fumaric acid decreased ruminal total VFA concentration and increased ruminal p H. No difference was found in ruminal DM degradation of concentrate or alfalfa hay by dietary Fps:Cps or FA. Goats presented a lower ruminal methanogen abundance with FA supplementation and a higher B. fibrisolvens abundance with high dietary Fps:Cps.Conclusions: Adjusting dietary Fps:Cps is an alternative dietary model for studying diet-dependent effects without changing dietary chemical composition. Fumaric acid supplementation in the low-Fps:Cps diet showed greater responses in methane mitigation and propionate increase.Zongjun Li Nannan Liu Yangchun Cao Chunjia Jin Fei Li Chuanjiang Cai Junhu Yao 2018Journal of Animal Science and Biotechnology2018,9,2:8
18Heritable/conditional genome editing in C. elegans using a CRISPR-Cas9 feeding system显示文摘Pengpeng Liu Lijiang Long Kai Xiong Bo Yu Nannan Chang Jing-Wei Xiong Zuoyan Zhu Dong Liu 2014Cell Research2014,24,7:8
19Diagnostic utility of N-terminal-proBNP in differentiating acute pulmonary embolism from heart failure in patients with acute dyspnea Diagnostic utility of N-terminal-proBNP in differentiating acute pulmonary embolism from heart failure in patients with acute dyspnea Diagnostic utility of N-terminal-proBNP in differentiating acute pulmonary embolism from heart failure in patients with acute dyspnea显示文摘Guo Ling Li Guanzhen Wang Yi Liang Hao Shan Xiaoxi Zhang Nannan Wang Maofen Lin Dianjie Zhu Ling 2014Chinese Medical Journal2014,,16:8
20Suboptimal Temperature Acclimation Enhances Chilling Tolerance by Improving Photosynthetic Adaptability and Osmoregulation Ability in Watermelon显示文摘The temperature drop of plants from the optimal requirements can increase tolerance to severe chilling stress. Photosynthesis and osmoregulators were analyzed during chilling stress to explore the adaptation mechanisms that underlie the induction of chilling tolerance in response to suboptimal temperature. The relationships of these processes to suboptimal temperature acclimation in watermelon were then determined.Suboptimal temperature-acclimated watermelon plants demonstrated tolerance during chilling stress, as indicated by the decreased electrolyte leakage and malondialdehyde accumulation compared with those non-acclimated watermelon plants. Chilling-induced photoinhibition and reduction in CO2 assimilation rate were alleviated after suboptimal temperature acclimation. The xanthophyll cycle level was enhanced by improving thermal dissipation ability and avoiding light damage. Consequently, the chilling tolerance of suboptimal temperature-acclimated watermelon plants was enhanced. The osmoregulation ability induced by suboptimal temperature acclimation protected watermelon plants against chilling injury because of the accumulation of small molecular substances, such as soluble sugar and proline. The protein levels of Rubisco activase(ClRCA) and the gene expression of the Benson–Calvin cycle simultaneously increased in suboptimal temperature-acclimated watermelon plants during chilling stress. Chilling tolerance in watermelon plants induced by suboptimal temperature acclimation is associated with enhanced photosynthetic adaptability and osmoregulation ability.Junyang Lu Muhammad Azher Nawaz Nannan Wei Fei Cheng Zhilong Bie 2020Horticultural Plant Journal2020,6,1:8
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