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| 1 | The contribution of absorption of integral nanocrystals to enhancement of oral bioavailability of quercetin显示文摘In this study,self-discriminating hybrid nanocrystals was utilized to explore the biological fate of quercetin hybrid nanocrystals(QT-HNCs)with diameter around 280 nm(QT-HNCs-280)and550 nm(QT-HNCs-550)following oral and intravenous administration and the contribution of integral nanocrystals to oral bioavailability enhancement of QT was estimated by comparing the absolute exposure of integral QT-HNCs and total QT in the liver.Results showed that QT-HNCs could reside in vivo as intact nanocrystals for as long as 48 h following oral and intravenous administration.A higher accumulation of integral QT-HNCs in liver and lung was observed for both oral and intravenous administration of QT-HNCs.The particle size affects the absorption and biodistribution of integral QT-HNCs and total QT.As compared to QT-HNCs-550,QT-HNCs-280 with smaller particle size is more easily absorbed,but dissolves faster in vivo,leading to higher distribution of QT(146.90 vs.117.91 h·mg/mL)but lower accumulation of integral nanocrystals(6.82 e10 vs.15.27 e10 h·[p/s]/[μW/cm2])in liver following oral administration.Due to its slower dissolution and enhanced recognition by RES,QT-HNCs-550 with larger diameter shows higher liver distribution for both of QT(1015.80 h·mg/mL)and integral nanocrystals(259.63 e10 h·[p/s]/[μW/cm2])than those of QT-HNCs-280(673.82&77.66 e10 h·[p/s]/[μW/cm2])following intravenous administration.The absolute exposure of integral QT-HNCs in liver following oral administration of QT-HNCs are 8.78%for QT-HNCs-280 and 5.88%for QT-HNCs-550,while the absolute exposure of total QT for QT-HNCs-280 and QT-HNCs-550 are 21.80%and 11.61%,respectively.Owing to imprecise quantifcation method,a surprisingly high contribution of integral QT-HNCs to oral bioavailability enhancement of QT(40.27%for QT-HNCs-280 and 50.65%for QT-HNCs-550)was obtained.These results revealed signifcant difference in absorption and biodistrbution between integral nanocrystals and overall drugs following oral and intravenous administration of QT-HNCs,and provided a meaningful reference for the contribution of integral nanocrystals to overall bioavailability enhancement. | Baode Shen Chengying Shen Weifeng Zhu Hailong Yuan | 2021 | Acta Pharmaceutica Sinica B2021，11，4： | 10 |
| 2 | In vivo dissolution of poorly water-soluble drugs:Proof of concept based on fluorescence bioimaging显示文摘In vitro-in vivo correlation(IVIVC)of solid dosage forms should be established basically between in vitro and in vivo dissolution of active pharmaceutical ingredients.Nevertheless,in vivo dissolution profles have never been accurately portrayed.The current practice of IVIVC has to resort to in vivo absorption fractions(Fa).In this proof-of-concept study,in vivo dissolution of a model poorly watersoluble drug fenofbrate(FNB)was investigated by fuorescence bioimaging.FNB crystals were frst labeled by near-infrared fuorophores with aggregation-caused quenching properties.The dyes illuminated FNB crystals but quenched immediately and absolutely once been released into aqueous media,enabling accurate monitoring of residual drug crystals.The linearity established between fuorescence and crystal concentration justifed reliable quantifcation of FNB crystals.In vitro dissolution was frst measured following pharmacopoeia monograph protocols with well-documented IVIVC.The synchronicity between fuorescence and in vitro dissolution of FNB supported using fuorescence as a measure for determination of dissolution.In vitro dissolution correlated well with in vivo dissolution,acquired by either live or ex vivo imaging.The newly established IVIVC was further validated by correlating both in vitro and in vivo dissolution with Faobtained from pharmacokinetic data. | Yinqian Yang Yongjiu Lv Chengying Shen Tingting Shi Haisheng He Jianping Qi Xiaochun Dong Weili Zhao Yi Lu Wei Wu | 2021 | Acta Pharmaceutica Sinica B2021，11，4： | 3 |
| 3 | The Salt Reduction and Yield Increase Effects of Smashing Ridging Transforming Saline-alkali Land and Its Development Prospects显示文摘Using smashing ridging tillage machine and smashing ridging technology invented by the authors,transformation test of saline-alkali land by smashing ridging was conducted respectively in Xinjiang and Shaanxi during 2015-2016. The results showed,in severe saline-alkali soil of Xinjiang,after growing cotton by smashing ridging,total salt in soil decreased by 31. 31%,cotton production increased by 48. 80%,and salinity level declined from severe to moderate; in mild saline-alkali soil of Shaanxi,after growing summer corn by smashing ridging,total salt in soil decreased by 42. 37%,corn yield increased by 34. 83%,salinity degree changed from mild desalination to normal farmland; in Ningxia,Inner Mongolia,Gansu,Jilin,Henan,Hebei,and so on,smashing ridging tillage practice in different types of saline-alkali land was conducted; according to the salt reduction and yield increase effects of saline-alkali land after smashing ridging,the development prospect of smashing ridging technique in improvement and application of saline-alkali land was proposed. | Wei Benhui Shen Zhangyou Zhou Jia Zhou Lingzhi Gan Xiuqin Lao Chengying Li Yanying Hu Po | 2018 | Meteorological and Environmental Research2018，9，4： | 3 |
| 4 | Effects of novel Fufang Biejia Ruangan Tablets with sheep placenta as substitute for Hominis Placenta on CCl4-induced liver fibrosis显示文摘Objective:Fufang Biejia Ruangan Tablet(FBRT) is widely used for the treatment of liver fibrosis.However,Hominis Placenta(HP),as an important adjuvant of FBRT,has been restricted for medicinal using due to the limited availability,ethical controversy and safety issues.The present study aimed to investigate the therapeutic effects of novel FBRT(N-FBRT) with sheep placenta(SP) as substitute for HP on liver fibrosis and explore its possible mechanisms.Different dosages of SP in N-FBRT were also evaluated.Methods:Rats were subcutaneously injected with CCl_(4)to induce liver fibrosis and then treated with NFBRT and FBRT.The anti-hepatic fibrosis effect was determined based on biomarkers analysis of liver function and hepatic fibrosis,and the liver pathology was visualized by H&E staining and Masson staining.The oxidative stress and inflammatory cytokines were also detected.Immunohistochemical staining of a-SMA,real time PCR and Western blotting were performed to evaluate hepatic stellate cells(HSCs)activation and TGF-β1/Smad signaling pathway.Results:N-FBRT and FBRT could ameliorate CCl_(4)-induced liver fibrosis and improve liver function,as evidenced by lowering serum biomarkers levels of liver function and hepatic fibrosis,and decreasing hepatic Hyp content and collagen deposition,and improving the hepatic morphology and architecture changes.Moreover,the anti-liver fibrosis effect was better when the dosage of SP used in N-FBRT was 1/2 of HP in FBRT.Administration of N-FBRT markedly alleviated oxidative stress and inflammatory cytokines,and inhibited a-SMA expression.Furthermore,the mRNA expression of Col Ⅰ,Col Ⅲ,a-SMA and TGF-β1,and proteins expression of a-SMA,TGF-β1,Smad2/3 and p-Smad2/3 were significantly down-regulated by N-FBRT treatment.Conclusion:SP can be used as substitute for HP to prepare N-FBRT for the treatment of liver fibrosis and the anti-liver fibrosis effect of N-FBRT is achieved by eliminating oxidative stress and inflammation,and inhibiting HSCs activation and ECM production by blocking TGF-β1/Smad signaling pathway. | Baode Shen Li Deng Yuan Liu Ruisheng Li Chengying Shen Xiao Liu Yinchao Li Hailong Yuan | 2022 | Chinese Herbal Medicines2022，14，1： | 2 |
| 5 | Restoration processes of pollution zones in Hanjiang River显示文摘RestorationprocessesofpollutionzonesinHanjiangRiver￥ShenYunfen;TanYuyun;FengWeisong;GuManru(InstituteofHydrobiology,ChineseAc... | Shen Yunfen Tan Yuyun Feng Weisong Gu Manru (Institute of Hydrobiology, Chinese Academy of Sciences, Wuchang 430072, China) He Chengying (Environmental Protection Station of Xiantao City ,China) Li Aiguo (Environmental Protection Station of Xiangfan Ci | 1996 | Journal of Environmental Sciences1996，8，2： | 2 |
| 6 | Insight into the in vivo fate of intravenous herpetrione amorphous nanosuspensions by aggregation-caused quenching probes显示文摘Intravenous nanosuspensions are attracted growing attention as a viable strategy for development of intravenous formulations of poorly water-soluble drugs.However,only few information about the biological fate of intravenous nanosuspensions is currently known,especially amorphous nanosuspensions are not reported yet.In this study,the in vivo fate of herpetrione(HPE)amorphous nanosuspensions following intravenous administration was explored by using an aggregation-caused quenching(ACQ)probe and HPLC methods.The ACQ probe is physically embedded into HPE nanoparticles via anti-solvent method to form HPE hybrid nanosuspensions(HPE-HNSs)for bioimaging.HPE-HNSs emit strong and stable fluorescence,but fluorescence quenches immediately upon the dissolution of HPE-HNSs,confirming the selfdiscrimination of HPE-HNSs.Following intravenous administration of HPE-HNSs,integral HPE-HNSs and HPE show similar degradation and biodistribution,with rapid clearance from blood circulation and obvious accumulation in liver and lung.Due to the slower dissolution and enhanced recognition by reticuloendothelial system,450 nm HPE-HNSs accumulate more in liver,lung and spleen than that of 200 nm HPE-HNSs.These results demonstrate that integral HPE-HNSs determine the in vivo performance of HPEHNSs.This study provides insight into the in vivo fate of intravenous amorphous nanosuspensions. | Lingyu Hang Chengying Shen Baode Shen Hailong Yuan | 2022 | Chinese Chemical Letters2022，33，11： | 1 |
| 7 | Analysis of the Problem Description in the Algorithm for Inventive Problem Solving Using Petri Nets显示文摘 | Shen R L Yang Chengying Li Jiahong | | 0，，： | 1 |
| 8 | Daily administration times of Canhuang tablet based on a pharmacodynamic/pharmacokinetic model in jaundiced rats显示文摘OBJECTIVE: To study the daily administration times of Canhuang tablet(CHT) for treating jaundice in rats based on a pharmacodynamic/ pharmacokinetic model.METHODS: Rats were modeled by 4% 1-Naphthylisothiocyanate(75 mg/kg, p.o.). After 48 h, CHT was given(p.o.) at 0.75 g/kg once a day, 0.375 g/kg twice a day, and 0.25 g/kg three times a day. Blood was collected from the orbital sinus at different intervals. Levels of liver enzymes and bilirubin were detected using these blood samples. Bile was collected and determined after the first administration of CHT. High-performance liquid chromatography was used to determine the concentration of berberine in bile simultaneously. Time-effect and time-dose curves were then obtained.RESULTS: Compared with rats taking CHT twiceand three times a day, the total amount of bile within 10 h of rats taking CHT once a day were 1.32-and 1.47-fold higher, respectively. There was good consistency between the pharmacokinetics of berberine and the pharmacodynamics of the effect on liver enzymes and bilirubin in vivo. The pharmacokinetic analyses showed that rats administered CHT once daily maintained a higher concentration of berberine in bile for a longer period than rats administered CHT two- and three-times daily.CONCLUSION: In jaundiced rats, taking CHT once a day is better than taking CHT twice or three times a day. These data may provide a reference for the clinical application of CHT. | Bai Jinxia Han Jin Chen Hongge Shen Baode Xu He Dai Ling Shen Chengying Yuan Hailong | 2015 | Journal of Traditional Chinese Medicine2015，35，1： | 1 |
| 9 | The Construction of the Major Clusters in Higher Vocational Colleges from the Perspective of Industrial Cluster显示文摘 | Qingtang ZHANG Chengying SHEN | 2015 | International Journal of Technology Management2015，，9： | 0 |
| 10 | Surface activity of a series of fluoroether betaine amphoteric surfactants: Oxygen roles显示文摘As PFOS, PFOA and their derivatives were banned according to the Stockholm Convention for their potential bioaccumulation and toxicity, people attempted to substitute the legacy fluorosurfactants with short-chain ones. Although short-chain alternatives can alleviate bioaccumulation, surface activity was compromised. Fluorine industry kept seeking for effective solution. In this work, we prepared and investigated a series of fluoroether betaine surfactants for their surface activity and spreading property. The role of oxygen on surface activity was discussed. We found that insertion of oxygen atoms into fluorinated chain could increase hydrophobicity and thus enhance surface activity. The contribution of one oxygen is approximately half of that of a difluoromethylene group by experience. Moreover, introducing oxygen diversified the structure to fill in the gap of surface activity between short and long fluorosurfactants. In summary, this work provided basic knowledge for molecular design. | Xue Wang Meiwei Huang Zhaoben Su Libo Qian Yong Guo Qing-Yun Chen Chengying Wu Tao lv Qin Su Qing Shen Jie Ma | 2023 | Chinese Chemical Letters2023，34，3： | 0 |
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