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Protective effect of Pai-Nong-San against AOM/DSS-induced CAC in mice through inhibiting the Wnt signaling pathway

Chinese Journal of Natural Medicines 2021年第12期19卷 912-920页

作者： ZHANG Meng-Meng yin deng-ke RUI Xue-Lin SHAO Fu-Ping LI Jia-Cheng XU Li YANG Ye School of Pharmacy Anhui University of Chinese MedicineHefei 230031China Anhui Provincial key Laboratory for Chinese Medicinal Formula Hefei 230031China Institute of Pharmaceutics Anhui Academy of Chinese MedicineHefei 230021China Anhui Provincial key Laboratory of Research&Development of Chinese Medicine Hefei 230021China

Pai-Nong-San(PNS), a prescription of traditional Chinese medicine, has been used for years to treat abscessation-induced diseases including colitis and colorectal cancer. This study was aimed to investigate the preventive effects and possible protective mechanism of PNS on a colitis-associated colorectal cancer(CAC) mouse model induced by azoxymethane(AOM)/dextran sodium sulfate(DSS). The macroscopic and histopathologic examinations of colon injury and DAI score were observed. The inflammatory indicators of intestinal immunity were determined by immunohistochemistry and immunofluorescence. The high throughput 16S rRNA sequence of gut microbiota in the feces of mice was performed. Western blot was used to investigate the protein expression of the Wnt signaling pathway in colon tissues. PNS improved colon injury, as manifested by the alleviation of hematochezia, decreased DAI score, increased colon length, and reversal of pathological changes. PNS treatment protected against AOM/DSS-induced colon inflammation by regulating the expression of CD4;and CD8;T cells, inhibiting the production of HIF-α, IL-6, and TNF-α, and promoting the expression of IL-4 and IFN-γ in colon tissues. Meanwhile, PNS improved the components of gut microbiota, as measured by the adjusted levels of Firmicutes, Bacteroidetes, Proteobacteria, and Lactobacillus. PNS down-regulated the protein expression of pGSK-3β, β-catenin, and c-Myc, while up-regulating the GSK-3β and p-β-catenin in colon tissues of CAC mice. In conclusion, our results suggested that PNS exhibits protective effect on AOM/DSS-induced colon injury and alleviates the development of CAC through suppressing inflammation, improving gut microbiota, and inhibiting the Wnt signaling pathway.

关键词： Pai-Nong-San CAC AOM-DSS Gut microbiota Wnt signaling pathway

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Synthesis and biological evaluation of nitric oxide-releasing matrine derivatives as anticancer agents

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Chinese Chemical Letters 2010年第4期21卷 381-384页

作者： He, Li Qin Liu, Jing yin, deng ke Zhang, Yi Hua Wang, Xiao Shan China Pharmaceut Univ Ctr Drug Discovery Nanjing 210009 Peoples R China Anhui Univ Tradit Chinese Med Anhui Key Lab Modernized Chinese Mat Med Hefei 230031 Anhui Peoples R China

A series of furoxan-based nitric oxide-releasing matrine derivatives ( 10a – f ) were synthesized. The biological evaluation showed that compounds 10a , 10b , 10e and 10f had stronger cytotoxic activities than 5-fluo... 详细信息

关键词： Matrine Furoxan Anti-tumor activity HepG2

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生石膏煎煮工艺对清肺排毒汤微粒体系理化性质的影响

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中国现代中药 2024年第4期26卷 702-710页

作者：陈郡培施亚楠杨凡尹登科杨晔安徽中医药大学药学院安徽合肥230012 药物制剂技术与应用安徽省重点实验室安徽合肥230012 中药研究与开发安徽省重点实验室安徽合肥230012

目的:研究生石膏煎煮工艺对清肺排毒汤微粒体系理化性质的影响。方法:以生石膏的不同煎煮方式(直接煎、先煎、包煎、另煎)制备清肺排毒汤水煎剂及配方颗粒调配液,以830×g、3300×g、13200×g的离心力通过梯度离心法分离各水煎剂和配方... 详细信息

目的:研究生石膏煎煮工艺对清肺排毒汤微粒体系理化性质的影响。方法:以生石膏的不同煎煮方式(直接煎、先煎、包煎、另煎)制备清肺排毒汤水煎剂及配方颗粒调配液,以830×g、3300×g、13200×g的离心力通过梯度离心法分离各水煎剂和配方颗粒调配液中的固体微粒,对微粒体的粒径、电位、形貌、元素分布及蛋白质、多糖含量进行表征。结果:各水煎剂组和颗粒剂组微粒体的粒径均随着离心力的增大而递减,且水煎剂组微粒体粒径均大于颗粒剂组。各水煎剂组和颗粒剂组微粒体的电位始终为负值,差异无统计学意义。水煎剂的制备方式与生石膏煎煮方式显著影响了清肺排毒汤微粒体形貌,生石膏直接煎和另煎组水煎剂微粒体呈现大小不一的球形和椭球形团聚形态,其中分散着片状和纤维状物质;生石膏先煎和包煎组水煎剂微粒体呈现网状结构;颗粒剂微粒体表呈不规律的块状堆积状态。各微粒体的主要元素为C、O和Ca,多糖含量高于蛋白质,但水煎剂组微粒体中多糖的含量均低于颗粒剂组微粒体。结论:共煎共煮形成的清肺排毒汤微粒体的粒径、电位、形貌、元素分布及蛋白质、多糖含量与配方颗粒调配液均不同,并且生石膏的煎煮工艺也会影响水煎剂微粒体的理化性质及物质形态。

关键词：生石膏清肺排毒汤配方颗粒调配液煎煮工艺微粒体系理化性质

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青岛西海岸新区蓝莓不同栽培模式生产中存在的技术问题

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北方果树 2024年第1期 23-26页

作者：王兴东殷登科魏鑫徐艺格刘成辽宁省果树科学研究所辽宁熊岳115009 青岛西海岸省级农业高新技术产业开发区管委会山东青岛266400

青岛西海岸新区是山东省蓝莓产业的主要生产区,蓝莓栽培模式多样,实现温室、保温式大棚、大棚、露天4种模式。通过调研、分析,归纳出不同生产模式出现的品种、修剪、施肥、病虫害防治等栽培技术方面的问题,形成初步总结与提议,为山东省... 详细信息

青岛西海岸新区是山东省蓝莓产业的主要生产区,蓝莓栽培模式多样,实现温室、保温式大棚、大棚、露天4种模式。通过调研、分析,归纳出不同生产模式出现的品种、修剪、施肥、病虫害防治等栽培技术方面的问题,形成初步总结与提议,为山东省蓝莓技术提升和产业发展提供参考。

关键词：青岛西海岸新区蓝莓栽培模式生产技术

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生防细菌HX0037对栝楼炭疽病的防病能力及其机制

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生物技术通报 2024年第4期40卷 228-241页

作者：徐伟芳李贺宇张慧何仔昂高文恒谢紫洋王传文尹登科安徽中医药大学药学院中药研究与开发安徽省重点实验室合肥230012 安徽中医药大学安徽中药材种植联合研究中心合肥230012 潜山市传文瓜子有限公司安庆246300

【目的】研究潜在生防细菌HX0037对栝楼炭疽病的防病能力,并探究其生防机制。【方法】采用平板对峙法测定HX0037对栝楼炭疽菌(Colletotrichum gloeosporioides)、枣炭疽菌(Collettrichum coccodes)、梨炭疽菌(Colletotrichum fructicola)和苹果炭疽菌(Cryptosporiopsis malicorticis)的拮抗活性;离体接种法评价其对栝楼叶片炭疽病和果实炭疽病的防治效果;结合形态学、生理生化特征和全基因组的序列分析结果,确定生防细菌的分类地位,并预测其次级代谢产物;采用酸沉淀法提取脂肽类化合物,并对其进行高效液相色谱串联质谱分析(LC-MS);最后通过观察生防细菌所产脂肽对栝楼炭疽病菌菌株生长和菌丝形态的影响,以及检测该菌株产酶和铁载体能力,探究可能的生防机制。【结果】HX0037菌株对4种瓜果炭疽病菌均有不同程度的抑菌活性,其中对栝楼炭疽病菌的抑菌效果最好,其能明显改变病菌细胞膜的通透性;与单独接种病菌的栝楼组相比,接种HX0037菌株能显著减小栝楼叶片炭疽病和栝楼果实炭疽病的病斑面积,其防病效果分别为61.50%和52.51%;HX0037菌株被进一步鉴定为解淀粉芽孢杆菌(Bacillus amyloliquefaciens),其基因组中包含12个次级代谢产物基因簇,它还具备产生纤维素酶、蛋白酶、淀粉酶和铁载体的能力;从HX0037代谢物中分离获得的脂肽导致栝楼炭疽病菌的菌丝发生扭曲、膨大等畸变现象,经LC-MS鉴定,该脂肽粗提物中含有表面活性素和丰原素。【结论】解淀粉芽孢杆菌HX0037具有良好的抑制炭疽病菌生长的能力,有望被进一步开发为生物农药用于栝楼炭疽病的绿色防控。

关键词：解淀粉芽孢杆菌生物防治栝楼炭疽病拮抗全基因组菌种鉴定脂肽

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青岛西海岸新区蓝莓生产中的问题及对策

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北方果树 2024年第2期 30-32,36页

作者：王兴东殷登科徐艺格杨玉春刘成辽宁省果树科学研究所辽宁熊岳115009 青岛西海岸省级农业高新技术产业开发区管委会山东青岛266400

青岛西海岸新区蓝莓4种生产模式均存在栽培技术问题。该文在建立科学的蓝莓生产管理理念、做好品种的优化提升、建立适宜的栽培技术体系(包括修剪技术、环境调控技术、水肥管理技术、病虫害防控技术)等方面提出解决对策及技术标准。

关键词：青岛西海岸新区蓝莓栽培技术

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肉桂油-艾叶油复配亚微乳制备及协同抗菌研究

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中南药学 2024年第5期22卷 1125-1130页

作者：徐丽芝孟扬王欣茹杨瑞李丹刘爽尹登科王淑君安徽中医药大学合肥230012 江西中医药大学南昌330000 沈阳药科大学沈阳110016 江苏艾迪纳米生物医药有限公司江苏南通226100 南通长三角药物高等研究院江苏南通226133 辽宁中医药大学附属第二医院沈阳110034 国家药品监督管理局食品药品审核查验中心沈阳100044

目的探究肉桂油和艾叶油的单一抗菌活性及两者联合使用的抗菌活性,优化肉桂油-艾叶油复配亚微乳处方及工艺,并对其进行初步质量评价。方法采用微量稀释法测定肉桂油和艾叶油对金黄色葡萄球菌、枯草芽孢杆菌和大肠埃希菌的最小抑菌浓度... 详细信息

目的探究肉桂油和艾叶油的单一抗菌活性及两者联合使用的抗菌活性,优化肉桂油-艾叶油复配亚微乳处方及工艺,并对其进行初步质量评价。方法采用微量稀释法测定肉桂油和艾叶油对金黄色葡萄球菌、枯草芽孢杆菌和大肠埃希菌的最小抑菌浓度(MIC)和最小杀菌浓度(MBC);采用棋盘稀释法测定了两种挥发油复配联用的分级抑菌浓度(FIC);采用滤纸片法测定油不同混合比例下抑菌圈直径,以离心稳定常数、粒径和多分散系数(PDI)为评价指标,最终确定亚微乳的最优处方。结果肉桂油对金黄色葡萄球菌的MIC为0.5 μL·mL^(-1),枯草芽孢杆菌及大肠埃希菌的MIC均为1 μL·mL^(-1),艾叶油对三种供试菌的MIC均为16 μL·mL^(-1)。肉桂油和艾叶油对金黄色葡萄球菌起相加作用,对大肠埃希菌和枯草芽孢杆菌起协同作用。复配亚微乳最优处方为肉桂油-艾叶油-大豆磷脂-泊洛沙姆188(P188)-水 2.5∶3∶0.2∶0.8∶93.5,制得的亚微乳为乳白色液体,平均粒径为(130.7±1.2)nm、PDI为0.145±0.02。结论肉桂油-艾叶油复配亚微乳对金黄色葡萄球、枯草芽孢杆菌和大肠埃希菌均有抑制作用,且效果强于挥发油。

关键词：肉桂油艾叶油亚微乳响应面协同抗菌

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Stromal lenticule addition keratoplasty with corneal crosslinking for corneal ectasia secondary to FS-LASIK:a case series

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 596-602页

作者： Li-Xiang Wang ying-Ping deng Meng-Zhen Xie ke Ma Hong-Bo yin Qiong Wang Rui Gong Jing Tang Department of Ophthalmology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina West China School of Medicine Sichuan UniversityChengdu 610041Sichuan ProvinceChina

●AIM:To explore the clinical efficacy and safety of stromal lenticule addition keratoplasty(SLAK)with corneal crosslinking(CXL)on patients with corneal ectasia secondary to femtosecond laser-assisted in situ keratomileusis(FS-LASIK).●METHODS:A series of 5 patients undertaking SLAK with CXL for the treatment of corneal ectasia secondary to FS-LASIK were followed for 4-9mo.The lenticules were collected from patients undertaking small incision lenticule extraction(SMILE)for the correction of myopia.Adding a stromal lenticule was aimed at improving the corneal thickness for the safe application of crosslinking and compensating for the thin cornea to improve its mechanical strength.●RESULTS:All surgeries were conducted successfully with no significant complications.Their best corrected visual acuity(BCVA)ranged from 0.05 to 0.8-2 before surgery.The pre-operational total corneal thickness ranged from 345-404μm and maximum keratometry(Kmax)ranged from 50.8 to 86.3.After the combination surgery,both the corneal keratometry(range 55.9 to 92.8)and total corneal thickness(range 413-482μm)significantly increased.Four out of 5 patients had improvement of corneal biomechanical parameters(reflected by stiffness parameter A1 in Corvis ST).However,3 patients showed decreased BCVA after surgery due to the development of irregular astigmatism and transient haze.Despite the onset of corneal edema right after SLAK,the corneal topography and thickness generally stabilized after 3mo.●CONCLUSION:SLAK with CXL is a potentially beneficial and safe therapy for advanced corneal ectasia.Future work needs to address the poor predictability of corneal refractometry and compare the outcomes of different surgical modes.

关键词： corneal ectasia femtosecond laserassisted in situ keratomileusis stromal lenticule addition keratoplasty corneal crosslinking corneal thickness corneal biomechanics

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VKFQ:A Verifiable keyword Frequency Query Framework with Local Differential Privacy in Blockchain

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Computers, Materials & Continua 2024年第3期78卷 4205-4223页

作者： Youlin Ji Bo yin ke Gu School of Computer and Communication Engineering Changsha University of Science and TechnologyChangsha410114China

With its untameable and traceable properties,blockchain technology has been widely used in the field of data sharing.How to preserve individual privacy while enabling efficient data queries is one of the primary issues with secure data sharing.In this paper,we study verifiable keyword frequency(KF)queries with local differential privacy in blockchain.Both the numerical and the keyword attributes are present in data objects;the latter are sensitive and require privacy protection.However,prior studies in blockchain have the problem of trilemma in privacy protection and are unable to handle KF queries.We propose an efficient framework that protects data owners’privacy on keyword attributes while enabling quick and verifiable query processing for KF queries.The framework computes an estimate of a keyword’s frequency and is efficient in query time and verification object(VO)size.A utility-optimized local differential privacy technique is used for privacy protection.The data owner adds noise locally into data based on local differential privacy so that the attacker cannot infer the owner of the keywords while keeping the difference in the probability distribution of the KF within the privacy budget.We propose the VB-cm tree as the authenticated data structure(ADS).The VB-cm tree combines the Verkle tree and the Count-Min sketch(CM-sketch)to lower the VO size and query time.The VB-cm tree uses the vector commitment to verify the query results.The fixed-size CM-sketch,which summarizes the frequency of multiple keywords,is used to estimate the KF via hashing operations.We conduct an extensive evaluation of the proposed framework.The experimental results show that compared to theMerkle B+tree,the query time is reduced by 52.38%,and the VO size is reduced by more than one order of magnitude.

关键词： Security data sharing blockchain data query privacy protection

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Dual-microcomb generation via a monochromatically pumped dual-mode microresonator

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Photonics Research 2024年第1期12卷 163-171页

作者： RUNLIN MIAO ke yin CHAO ZHOU CHENXI ZHANG ZHUOPEI YU XIN ZHENG TIAN JIANG National Innovation Institute of Defense Technology Academy of Military Sciences PLA ChinaBeijing 100071China Beijing Institute for Advanced Study National University of Defense TechnologyBeijing 100000China College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China College of Electronic Science and Technology National University of Defense TechnologyChangsha 410073China Institute for Quantum Science and Technology College of ScienceNational University of Defense TechnologyChangsha 410073China

Microcombs have enabled a host of cutting-edge applications from metrology to communications that have garnered significant attention in the last decade.Nevertheless,due to the thermal instability of the microresonator,additional control devices like auxiliary lasers are indispensable for single-soliton generation in some scenarios.Specifically,the increased system complexity would be too overwhelming for dual-microcomb generation.Here,we put forward a novel approach to mitigate the thermal instability and generate the dual-microcomb using a compact system.This process is akin to mode-division multiplexing,as the dual-microcombs are generated by pumping the dual-mode of a single Si_(3)N_(4) microresonator with a continuous-wave laser.Both numerical simulations and experimental measurements indicate that this innovative technique could offer a straightforward way to enlarge the soliton existence range,allowing entry into the multistability regime and triggering another microcomb alongside the main soliton pulse.This outcome not only shines new light on the interaction mechanism of microresonator modes but also provides an avenue for the development of dual-microcomb-based ranging and low phase noise microwave generation.

关键词： resonator pumped pumping

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