LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 4 von insgesamt 4

Suchoptionen

  1. Artikel ; Online: Spatiotemporal distribution and environmental influences of severe fever with thrombocytopenia syndrome in Shandong Province, China.

    Duan, Qing / Tian, Xueying / Pang, Bo / Zhang, Yuwei / Xiao, Chuanhao / Yao, Mingxiao / Ding, Shujun / Zhang, Xiaomei / Jiang, Xiaolin / Kou, Zengqiang

    BMC infectious diseases

    2023  Band 23, Heft 1, Seite(n) 891

    Abstract: Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease discovered in China in 2009. The purpose of this study was to describe the spatiotemporal distribution of SFTS and to identify its environmental influencing ...

    Abstract Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease discovered in China in 2009. The purpose of this study was to describe the spatiotemporal distribution of SFTS and to identify its environmental influencing factors and potential high-risk areas in Shandong Province, China.
    Methods: Data on the SFTS incidence from 2010 to 2021 were collected. Spatiotemporal scan statistics were used to identify the time and area of SFTS clustering. The maximum entropy (MaxEnt) model was used to analyse environmental influences and predict high-risk areas.
    Results: From 2010 to 2021, a total of 5705 cases of SFTS were reported in Shandong. The number of SFTS cases increased yearly, with a peak incidence from April to October each year. Spatiotemporal scan statistics showed the existence of one most likely cluster and two secondary likely clusters in Shandong. The most likely cluster was in the eastern region, from May to October 2021. The first secondary cluster was in the central region, from May to October 2021. The second secondary cluster was in the southeastern region, from May to September 2020. The MaxEnt model showed that the mean annual wind speed, NDVI, cattle density and annual cumulative precipitation were the key factors influencing the occurrence of SFTS. The predicted risk map showed that the area of high prevalence was 28,120 km
    Conclusions: The spatiotemporal distribution of SFTS was heterogeneous and influenced by multidimensional environmental factors. This should be considered as a basis for delineating SFTS risk areas and developing SFTS prevention and control measures.
    Mesh-Begriff(e) Animals ; Cattle ; Severe Fever with Thrombocytopenia Syndrome ; Phlebovirus ; Thrombocytopenia/epidemiology ; Incidence ; China/epidemiology
    Sprache Englisch
    Erscheinungsdatum 2023-12-20
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2041550-3
    ISSN 1471-2334 ; 1471-2334
    ISSN (online) 1471-2334
    ISSN 1471-2334
    DOI 10.1186/s12879-023-08899-1
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  2. Artikel ; Online: Dynamic lipid profile of hyperlipidemia mice.

    Chen, Yu-Lian / Xiao, Chuan-Hao / Hu, Zhi-Xiong / Liu, Xiao-Shan / Liu, Zhiguo / Zhang, Wei-Nong / Zhao, Xiu-Ju

    Journal of chromatography. B, Analytical technologies in the biomedical and life sciences

    2017  Band 1055-1056, Seite(n) 165–171

    Abstract: Biomarkers of serum fatty acids in hyperlipidemia need to be elucidated. 90 SPF KM male mice were randomly divided into 18 groups (n=5/group), control groups, and high fat diet (HFD) groups at 9 time points. On day 7, 10, 15, 18, 21, 24, 28, 31, and 35, ... ...

    Abstract Biomarkers of serum fatty acids in hyperlipidemia need to be elucidated. 90 SPF KM male mice were randomly divided into 18 groups (n=5/group), control groups, and high fat diet (HFD) groups at 9 time points. On day 7, 10, 15, 18, 21, 24, 28, 31, and 35, the mice were sacrificed; blood was collected into tubes from the eyes, serum samples for clinical biochemistry assays and gas chromatography-mass spectroscopy were attained after centrifugation, and the contents of serum fatty acids were detected with GC-MS. Sections of livers were taken and stored in formalin solution for histological assessments. No species differences existed in all these groups. The contents of C16:1, C18:1, C22:6 were significantly different between HFD groups and the corresponding controls; meanwhile, the proportion of fatty acids, especially the monounsaturated degree, the polyunsaturated degree, changed significantly and regularly (P<0.05). Thus the three unsaturated fatty acids C16:1, C18:1, C22:6 and the monounsaturated/polyunsaturated unsaturated degrees may be as potential biomarkers of hyperlipidemia.
    Mesh-Begriff(e) Animals ; Biomarkers/blood ; Diet, High-Fat/adverse effects ; Fatty Acids/analysis ; Fatty Acids/blood ; Gas Chromatography-Mass Spectrometry/methods ; Hyperlipidemias/blood ; Hyperlipidemias/etiology ; Hyperlipidemias/pathology ; Liver/chemistry ; Liver/pathology ; Male ; Mice
    Chemische Substanzen Biomarkers ; Fatty Acids
    Sprache Englisch
    Erscheinungsdatum 2017-06-15
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 1180823-8
    ISSN 1873-376X ; 0378-4347 ; 1570-0232 ; 1387-2273
    ISSN (online) 1873-376X
    ISSN 0378-4347 ; 1570-0232 ; 1387-2273
    DOI 10.1016/j.jchromb.2017.04.017
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  3. Artikel ; Online: A novel preparation of methyl-β-cyclodextrin from dimethyl carbonate and β-cyclodextrin.

    Gan, Yongjiang / Zhang, Yimin / Xiao, Chuanhao / Zhou, Chunyan / Zhao, Yucang

    Carbohydrate research

    2011  Band 346, Heft 3, Seite(n) 389–392

    Abstract: A novel green synthesis process about methyl-β-cyclodextrin has been investigated through the reaction between β-cyclodextrin and dimethyl carbonate by anhydrous potassium carbonate as catalyst in DMF. The influence of experimental factors including the ... ...

    Abstract A novel green synthesis process about methyl-β-cyclodextrin has been investigated through the reaction between β-cyclodextrin and dimethyl carbonate by anhydrous potassium carbonate as catalyst in DMF. The influence of experimental factors including the molar ratio of dimethyl carbonate to β-cyclodextrin, reaction temperature, and reaction time on the average degree of substitution of methyl-β-cyclodextrin was studied. The results show that the average degree of substitution of methyl-β-cyclodextrin can be dependent on the reaction temperature and the molar ratio of raw material primarily. The structures of methyl-β-cyclodextrin were characterized by TLC, IR, MS, (1)H NMR, and (13)C NMR.
    Mesh-Begriff(e) Carbonates ; Catalysis ; Formates/chemistry ; Hot Temperature ; Potassium ; Solubility ; beta-Cyclodextrins/chemical synthesis ; beta-Cyclodextrins/chemistry
    Chemische Substanzen Carbonates ; Formates ; beta-Cyclodextrins ; methyl-beta-cyclodextrin ; potassium carbonate (BQN1B9B9HA) ; methyl carbonate (KE9J097SPN) ; Potassium (RWP5GA015D)
    Sprache Englisch
    Erscheinungsdatum 2011-02-15
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1435-7
    ISSN 1873-426X ; 0008-6215
    ISSN (online) 1873-426X
    ISSN 0008-6215
    DOI 10.1016/j.carres.2010.05.028
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  4. Artikel: novel preparation of methyl-β-cyclodextrin from dimethyl carbonate and β-cyclodextrin

    Gan, Yongjiang / Zhang, Yimin / Xiao, Chuanhao / Zhou, Chunyan / Zhao, Yucang

    Carbohydrate research

    Band v. 346,, Heft no. 3

    Abstract: A novel green synthesis process about methyl-β-cyclodextrin has been investigated through the reaction between β-cyclodextrin and dimethyl carbonate by anhydrous potassium carbonate as catalyst in DMF. The influence of experimental factors including the ... ...

    Abstract A novel green synthesis process about methyl-β-cyclodextrin has been investigated through the reaction between β-cyclodextrin and dimethyl carbonate by anhydrous potassium carbonate as catalyst in DMF. The influence of experimental factors including the molar ratio of dimethyl carbonate to β-cyclodextrin, reaction temperature, and reaction time on the average degree of substitution of methyl-β-cyclodextrin was studied. The results show that the average degree of substitution of methyl-β-cyclodextrin can be dependent on the reaction temperature and the molar ratio of raw material primarily. The structures of methyl-β-cyclodextrin were characterized by TLC, IR, MS, ¹H NMR, and ¹³C NMR.
    Schlagwörter potassium carbonate ; raw materials ; beta-cyclodextrin ; catalysts ; nuclear magnetic resonance spectroscopy ; temperature
    Sprache Englisch
    Dokumenttyp Artikel
    ISSN 0008-6215
    Datenquelle AGRIS - International Information System for the Agricultural Sciences and Technology

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang