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  1. Article: [The classification method of syndromes in the Bei ji qian jin yao fang (Essential Recipes for Emergent Use Worth A Thousand Gold)].

    Shen, Xiaowei / Zheng, Wenjie / Ma, Mingyue / Zhang, Zhibin

    Zhonghua yi shi za zhi (Beijing, China : 1980)

    2014  Volume 44, Issue 2, Page(s) 77–80

    Abstract: Bei ji qian jin yao fang (Essential Recipes for Emergent Use Worth A Thousand Gold) epitomizes ...

    Abstract Bei ji qian jin yao fang (Essential Recipes for Emergent Use Worth A Thousand Gold) epitomizes the medical achievements of the Tang Dynasty with an extensive coverage. The classification method of syndromes in this book is derived from Nei jing (Inner Canon), Nan jing (Classic of Questioning), Shang han za bing lun (Treatise on Cold Pathogenic and Miscellaneous Diseases), Zhu bing yuan hou lun (General Treatise on Causes and Manifestations of All Diseases), and enlightens the later generation with many unique characteristics, reflecting the mature recognition of the diseases in the contemporary clinical medicine from one side. It is still of great significance for understanding the diseases and exploring its pathogenesis even today.
    MeSH term(s) Books/history ; China ; History, Medieval ; Humans ; Medicine, Chinese Traditional/history ; Syndrome
    Language Chinese
    Publishing date 2014-03
    Publishing country China
    Document type English Abstract ; Historical Article ; Journal Article
    ZDB-ID 1052411-3
    ISSN 0255-7053
    ISSN 0255-7053
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Response to Qian et al. (2017): Daily and seasonal climate variations are both critical in the evolution of species’ elevational range size

    Chan, Wei‐Ping / I‐Ching Chen / Robert K. Colwell / Wei‐Chung Liu / Cho‐ying Huang / Sheng‐Feng Shen

    Journal of biogeography. 2018 Dec., v. 45, no. 12

    2018  

    Abstract: In their recent critique, Qian et al. stated that the results of structural equation modeling ... in their reanalysis, is that Qian et al. did not follow the standard, iterative strategy of SEM, which allows ... to resolve—Qian et al.'s concerns regarding SEM. Moreover, in our original paper, we used three distinct ...

    Abstract In their recent critique, Qian et al. stated that the results of structural equation modeling analysis (SEM) in Chan et al. were flawed. Here, we show that the source of the difference, in their reanalysis, is that Qian et al. did not follow the standard, iterative strategy of SEM, which allows researchers to evaluate which model offers the best account of the data in both absolute and relative terms. Here, we provide step‐by‐step instructions to reproduce our published results. We address—and aim to resolve—Qian et al.'s concerns regarding SEM. Moreover, in our original paper, we used three distinct statistical methods—hierarchical partitioning, SEM and stationary bootstrap—to show that different temporal scales of environmental variability differentially impact the elevational range size (ERS) of species. We believe it is time to move on to probing the pressing issue of how and why climatic variability impacts ERS.
    Keywords climate ; models ; structural equation modeling
    Language English
    Dates of publication 2018-12
    Size p. 2832-2836.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note LETTER
    ZDB-ID 188963-1
    ISSN 0305-0270
    ISSN 0305-0270
    DOI 10.1111/jbi.13449
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Extraction optimization, isolation, preliminary structural characterization and antioxidant activities of the cell wall polysaccharides in the petioles and pedicels of Chinese herbal medicine Qian (Euryale ferox Salisb.).

    Wu, Chengying / Wang, Xinsheng / Wang, Hong / Shen, Bei / He, Xiaoxiao / Gu, Wei / Wu, Qinan

    International journal of biological macromolecules

    2014  Volume 64, Page(s) 458–467

    Abstract: Cell wall polysaccharides in the petioles and pedicels of Qian (Euryale ferox Salisb.) (EFPP) were ...

    Abstract Cell wall polysaccharides in the petioles and pedicels of Qian (Euryale ferox Salisb.) (EFPP) were extracted using ultrasound-assisted technique. Response surface methodology (RSM) based on Box-Behnken design (BBD) was employed to optimize extraction parameters for the maximum purity of polysaccharides. The results showed that the optimum extraction conditions were extraction temperature of 80 °C, extraction time of 32 min, ultrasonic power of 270W and liquid-to-solid ratio of 40 mL/g. Under the optimal conditions, the experimental purity of polysaccharides was 62.57% ± 1.68%, which was very close to the predicted. The crude EFPP were isolated using DEAE-52 column and four major fractions (EFPP-1, EFPP-2, EFPP-3 and EFPP-4) were obtained. Typical functional groups of polysaccharides were characteristic for EFPP-1, EFPP-3 and EFPP-4 from FT-IR spectrum. Furthermore, the crude EFPP and three fractions (EFPP-1, EFPP-3 and EFPP-4) possessed appreciable in vitro antioxidant effects on α,α-diphenyl-β-picrylhydrazyl (DPPH), 2,2'-azinobis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), hydroxyl radical scavenging and reducing powers. Then, the crude EFPP and EFPP-4 could effective against H2O2-induced injury on HUVEC and VSMC through enhancement of T-AOC, SOD and CAT activities and decrease of MDA content.
    MeSH term(s) Antioxidants/chemistry ; Antioxidants/isolation & purification ; Antioxidants/pharmacology ; Cell Line ; Cell Wall/chemistry ; Cells, Cultured ; Drugs, Chinese Herbal/chemistry ; Drugs, Chinese Herbal/isolation & purification ; Drugs, Chinese Herbal/pharmacology ; Free Radical Scavengers/chemistry ; Free Radical Scavengers/isolation & purification ; Free Radical Scavengers/pharmacology ; Human Umbilical Vein Endothelial Cells/drug effects ; Human Umbilical Vein Endothelial Cells/metabolism ; Humans ; Myocytes, Smooth Muscle/drug effects ; Myocytes, Smooth Muscle/metabolism ; Polysaccharides/chemistry ; Polysaccharides/isolation & purification ; Polysaccharides/pharmacology ; Tracheophyta/chemistry
    Chemical Substances Antioxidants ; Drugs, Chinese Herbal ; Free Radical Scavengers ; Polysaccharides
    Language English
    Publishing date 2014-03
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2013.12.025
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Changes of Intermarriage between Upper Classes of Yi Nationality in Dian & Qian Region since Ming and Qing Dynasty and the Causes

    Qianfang Shen / Li Cheng

    Asian Culture and History, Vol 1, Iss

    2009  Volume 2

    Abstract: ... reformation of Yi Nationality in Dian and Qian Region since Ming and Qing Dynasty, they had changed ...

    Abstract After the ancestors of Yi Nationality stepped into the class society, their traditional marriage was characterized by hierarchical endogamy, national endogamy, and levirate, etc. However, with rapid reformation of Yi Nationality in Dian and Qian Region since Ming and Qing Dynasty, they had changed their original strict hierarchical system, social structure, national structure, economic structure and ideology, with increasing internal disparate development. The series of changes not only broke traditional marriage form, and challenged the hierarchical endogamy and national endogamy, but brought into emergence filiality and chastity of women in Yi Nationality due to living mode, customs and behavioral manners of inland immigrants.
    Keywords History of Asia ; DS1-937 ; History (General) and history of Europe ; D ; Philosophy (General) ; B1-5802 ; Philosophy. Psychology. Religion ; B
    Language English
    Publishing date 2009-07-01T00:00:00Z
    Publisher Canadian Center of Science and Education
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Extraction optimization, isolation, preliminary structural characterization and antioxidant activities of the cell wall polysaccharides in the petioles and pedicels of Chinese herbal medicine Qian (Euryale ferox Salisb.)

    Wu, Chengying / Bei Shen / Hong Wang / Qinan Wu / Wei Gu / Xiaoxiao He / Xinsheng Wang

    International journal of biological macromolecules. 2014 Mar., v. 64

    2014  

    Abstract: Cell wall polysaccharides in the petioles and pedicels of Qian (Euryale ferox Salisb.) (EFPP) were ...

    Abstract Cell wall polysaccharides in the petioles and pedicels of Qian (Euryale ferox Salisb.) (EFPP) were extracted using ultrasound-assisted technique. Response surface methodology (RSM) based on Box–Behnken design (BBD) was employed to optimize extraction parameters for the maximum purity of polysaccharides. The results showed that the optimum extraction conditions were extraction temperature of 80°C, extraction time of 32min, ultrasonic power of 270W and liquid-to-solid ratio of 40mL/g. Under the optimal conditions, the experimental purity of polysaccharides was 62.57%±1.68%, which was very close to the predicted. The crude EFPP were isolated using DEAE-52 column and four major fractions (EFPP-1, EFPP-2, EFPP-3 and EFPP-4) were obtained. Typical functional groups of polysaccharides were characteristic for EFPP-1, EFPP-3 and EFPP-4 from FT-IR spectrum. Furthermore, the crude EFPP and three fractions (EFPP-1, EFPP-3 and EFPP-4) possessed appreciable in vitro antioxidant effects on α,α-diphenyl-β-picrylhydrazyl (DPPH), 2,2′-azinobis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), hydroxyl radical scavenging and reducing powers. Then, the crude EFPP and EFPP-4 could effective against H2O2-induced injury on HUVEC and VSMC through enhancement of T-AOC, SOD and CAT activities and decrease of MDA content.
    Keywords 2,2-diphenyl-1-picrylhydrazyl ; antioxidant activity ; catalase ; cell walls ; Fourier transform infrared spectroscopy ; herbal medicines ; hydroxyl radicals ; petioles ; polysaccharides ; response surface methodology ; superoxide dismutase ; temperature ; ultrasonic treatment ; ultrasonics
    Language English
    Dates of publication 2014-03
    Size p. 458-467.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2013.12.025
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Effects of praeruptorin C and E isolated from 'Qian-Hu' on swine coronary artery and guinea-pig atria.

    Rao, M R / Shen, X H / Zou, X

    European journal of pharmacology

    1988  Volume 155, Issue 3, Page(s) 293–296

    Abstract: Praeruptorin C and E isolated from Peucedanum praeruptorum Dunn. decreased the maximum contractile effect of Ca2+ in potassium-depolarized swine coronary strips and shifted the concentration-response curve to the right in a non-parallel manner. The ... ...

    Abstract Praeruptorin C and E isolated from Peucedanum praeruptorum Dunn. decreased the maximum contractile effect of Ca2+ in potassium-depolarized swine coronary strips and shifted the concentration-response curve to the right in a non-parallel manner. The calcium antagonistic activity of praeruptorin C and E expressed as pD'2 value was 5.7 and 5.2, respectively. Nifedipine, with a pD'2 value of 6.88, was used as a known calcium antagonistic drug to compare the potency of the drugs studied. The relaxation induced by praeruptorin C was concentration-dependent and the IC50 value was 79 microM. Praeruptorin C also reduced the maximum contractile response and shifted the concentration-response curve for calcium to the right in a non-parallel manner in potassium-depolarized guinea-pig left atria (pD'2 = 5.52) but its potency was much less than that of nifedipine (pD'2 = 7.19). The results suggest that praeruptorin C and E relaxed swine coronary artery and decreased contractility in guinea-pig left atria. These effects are similar in many respects to those displayed by drugs that have calcium entry blocking activity.
    MeSH term(s) Animals ; Calcium/pharmacology ; Calcium Channel Blockers ; Coronary Vessels/drug effects ; Coumarins/pharmacology ; Drugs, Chinese Herbal/pharmacology ; Guinea Pigs ; Heart Atria/drug effects ; In Vitro Techniques ; Muscle, Smooth, Vascular/drug effects ; Myocardial Contraction/drug effects ; Vasoconstriction/drug effects
    Chemical Substances Calcium Channel Blockers ; Coumarins ; Drugs, Chinese Herbal ; praeruptorin E (78478-28-1) ; praeruptorin C (83382-71-2) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 1988-10-18
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 80121-5
    ISSN 1879-0712 ; 0014-2999
    ISSN (online) 1879-0712
    ISSN 0014-2999
    DOI 10.1016/0014-2999(88)90516-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Research of mortality risk prediction based on hospital admission data for COVID-19 patients.

    Shen, Qian

    Mathematical biosciences and engineering : MBE

    2022  Volume 20, Issue 3, Page(s) 5333–5351

    Abstract: As COVID-19 continues to spread across the world and causes hundreds of millions of infections and millions of deaths, medical institutions around the world keep facing a crisis of medical runs and shortages of medical resources. In order to study how to ...

    Abstract As COVID-19 continues to spread across the world and causes hundreds of millions of infections and millions of deaths, medical institutions around the world keep facing a crisis of medical runs and shortages of medical resources. In order to study how to effectively predict whether there are risks of death in patients, a variety of machine learning models have been used to learn and predict the clinical demographics and physiological indicators of COVID-19 patients in the United States of America. The results show that the random forest model has the best performance in predicting the risk of death in hospitalized patients with COVID-19, as the COVID-19 patients' mean arterial pressures, ages, C-reactive protein tests' values, values of blood urea nitrogen and their clinical troponin values are the most important implications for their risk of death. Healthcare organizations can use the random forest model to predict the risks of death based on data from patients admitted to a hospital due to COVID-19, or to stratify patients admitted to a hospital due to COVID-19 based on the five key factors this can optimize the diagnosis and treatment process by appropriately arranging ventilators, the intensive care unit and doctors, thus promoting the efficient use of limited medical resources during the COVID-19 pandemic. Healthcare organizations can also establish databases of patient physiological indicators and use similar strategies to deal with other pandemics that may occur in the future, as well as save more lives threatened by infectious diseases. Governments and people also need to take action to prevent possible future pandemics.
    MeSH term(s) Humans ; COVID-19/epidemiology ; Pandemics ; Hospitalization ; Machine Learning ; Hospitals
    Language English
    Publishing date 2022-12-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2265126-3
    ISSN 1551-0018 ; 1551-0018
    ISSN (online) 1551-0018
    ISSN 1551-0018
    DOI 10.3934/mbe.2023247
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A superior mesenteric venous aneurysm developed after radical pancreaticoduodenectomy: A case report.

    Lv, Laobo / Qian, Liying / Xie, Shisheng / Shen, Zhihong

    Asian journal of surgery

    2024  Volume 47, Issue 3, Page(s) 1701–1702

    MeSH term(s) Humans ; Pancreaticoduodenectomy/adverse effects ; Pancreatic Neoplasms/surgery ; Postoperative Complications/diagnostic imaging ; Postoperative Complications/etiology ; Aneurysm/diagnostic imaging ; Aneurysm/etiology ; Aneurysm/surgery
    Language English
    Publishing date 2024-01-09
    Publishing country Netherlands
    Document type Case Reports ; Letter
    ZDB-ID 1068461-x
    ISSN 0219-3108 ; 1015-9584
    ISSN (online) 0219-3108
    ISSN 1015-9584
    DOI 10.1016/j.asjsur.2023.12.046
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Si Miao San relieves hyperuricemia by regulating intestinal flora.

    Qian, Yue / Shen, Yan

    Biomedical chromatography : BMC

    2023  Volume 38, Issue 3, Page(s) e5807

    Abstract: This study seeks to investigate the therapeutic effects of Si Miao San (SMS) on hyperuricemia and its underlying mechanisms, particularly focusing on the role of intestinal flora. The key components of SMS were identified using high-performance liquid ... ...

    Abstract This study seeks to investigate the therapeutic effects of Si Miao San (SMS) on hyperuricemia and its underlying mechanisms, particularly focusing on the role of intestinal flora. The key components of SMS were identified using high-performance liquid chromatography (HPLC). To establish a rat model of hyperuricemia, an intraperitoneal injection of potassium oxonate was performed, followed by oral administration of various concentrations of SMS. The study evaluated the status of hyperuricemia, renal pathology, xanthine oxidase (XO) activity, and intestinal flora. Utilizing HPLC, we identified five active components of SMS. Following SMS intervention, there was a significant reduction in serum levels of uric acid (UA), blood urea nitrogen, and creatinine, accompanied by an increase in urine UA levels in rats with hyperuricemia. Distinct pathological injuries were evident in the renal tissues of hyperuricemic rats, and these were partially alleviated following SMS intervention. Moreover, SMS exhibited a dose-dependent reduction in XO activity both in the serum and hepatic tissues. Notably, SMS contributed to an enhancement in the diversity of intestinal flora in hyperuricemic rats. The intervention of SMS resulted in a reduction in the abundance of certain bacterial species, including Parabacteroides johnsonii, Corynebacterium urealyticum, and Burkholderiales bacterium. This suggests that SMS may exert anti-hyperuricemia effects, potentially by modulating the composition of intestinal flora.
    MeSH term(s) Rats ; Animals ; Hyperuricemia/drug therapy ; Gastrointestinal Microbiome ; Kidney ; Uric Acid ; Drugs, Chinese Herbal ; Xanthine Oxidase
    Chemical Substances Uric Acid (268B43MJ25) ; Drugs, Chinese Herbal ; Xanthine Oxidase (EC 1.17.3.2)
    Language English
    Publishing date 2023-12-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 632848-9
    ISSN 1099-0801 ; 0269-3879
    ISSN (online) 1099-0801
    ISSN 0269-3879
    DOI 10.1002/bmc.5807
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: New stability results for discrete-time switched systems under admissible edge-dependent average persistent dwell-time or admissible edge-dependent persistent dwell-time switching.

    Shen, Qian / Chen, Yihan

    ISA transactions

    2024  Volume 146, Page(s) 297–307

    Abstract: This paper is devoted to the stability analysis of a class of discrete-time switched systems under newly designed switching regularities. The utilized switching is extended from the primitive mode-dependent persistent dwell-time switching. By integrating ...

    Abstract This paper is devoted to the stability analysis of a class of discrete-time switched systems under newly designed switching regularities. The utilized switching is extended from the primitive mode-dependent persistent dwell-time switching. By integrating the existing admissible edge-dependent average dwell-time switching into the mode-dependent persistent dwell-time regime, a novel admissible edge-dependent average persistent dwell-time strategy involving the notion of admissible transition edges is proposed. The integrated admissible edge-dependent average dwell-time switching has been confirmed to be superior to mode-dependent average dwell-time switching. This superiority makes the proposed switching more general than the relaxed mode-dependent persistent dwell-time switching in the literature. Even if the embedded admissible edge-dependent average dwell-time restrictions degrade to admissible edge-dependent dwell-time ones under special parameter settings, the resulting admissible edge-dependent persistent dwell-time switching retains the advantage of admissible transition edges to generalize the original mode-dependent persistent dwell-time switching. Meanwhile, to remove the switching information reliance in the existing multiple convex Lyapunov functions, an improved multiple convex Lyapunov function method is devised. The designed Lyapunov function can be used to implement broader feasible ranges and tighter lower bounds of admissible edge-dependent average persistent dwell-time (or admissible edge-dependent persistent dwell-time). Finally, the validity and efficiency of the presented approaches are illustrated by a three-phase inverter and a numerical example.
    Language English
    Publishing date 2024-01-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2012746-7
    ISSN 1879-2022 ; 0019-0578
    ISSN (online) 1879-2022
    ISSN 0019-0578
    DOI 10.1016/j.isatra.2023.12.027
    Database MEDical Literature Analysis and Retrieval System OnLINE

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