LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 620

Search options

  1. Article ; Online: Analysis of Distributions of HPV Infection in Females with Cervical Lesions in the Western District of Beijing Chaoyang Hospital.

    Gong, Meili / Chen, Chen / Zhao, Huirong / Guo, Liyuan / Sun, Mingxia / Song, Meiyu

    Journal of healthcare engineering

    2022  Volume 2022, Page(s) 5422748

    Abstract: Objective: To analyze the distribution of human papilloma virus (HPV) infection in women with cervical lesions of different grades and analyze the relationship of high-risk HPV and cervical lesions in order to facilitate targeted prevention.: Methods!# ...

    Abstract Objective: To analyze the distribution of human papilloma virus (HPV) infection in women with cervical lesions of different grades and analyze the relationship of high-risk HPV and cervical lesions in order to facilitate targeted prevention.
    Methods: The infection status of HPV subtype was statistically analyzed in patients who underwent colposcopy examination from April 2017 to June 2019.
    Results: The infection rate of HPV was 81.4% in chronic cervicitis, 82.9% in 1ow-grade squamous intraepithelial lesion (LSIL), 63.7% in HSIL (high-grade squamous intraepithelial lesion), and 50% in cervical squamous cell carcinoma (CSCC). Among the 16 high-risk HPV types, the top six HPV types with the comprehensive infection rates were HPV16 > HPV52 > HPV58 > HPV18 > HPV51 > HPV53 in turn, and the infection rates were 23.3%, 14.8%, 13.3%, 9.8%, 9.2%, and 8.8%, respectively. The infection rates of HPV16 in chronic cervicitis group, LSIL group, and HSIL group were significantly different. There was no significant difference in the injection rates of HPV52, HPV58, and HPV18 among the three groups. HPV infection rates were highest in the 31-40 years old group, followed by the 41-50 years old group.
    Conclusion: The distribution of different types of HPV varies in different tissue types, which can be used to develop relevant vaccines to achieve better prevention and treatment of cervical cancer.
    MeSH term(s) Adult ; Cervical Intraepithelial Neoplasia/epidemiology ; Female ; Genotype ; Hospitals ; Humans ; Middle Aged ; Papillomaviridae ; Papillomavirus Infections/diagnosis ; Papillomavirus Infections/epidemiology ; Papillomavirus Infections/prevention & control ; Prevalence ; Uterine Cervical Neoplasms/epidemiology ; Uterine Cervicitis/epidemiology
    Language English
    Publishing date 2022-03-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2545054-2
    ISSN 2040-2309 ; 2040-2295
    ISSN (online) 2040-2309
    ISSN 2040-2295
    DOI 10.1155/2022/5422748
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: [Study on the genetic characteristics of enteric viral pathogens of sporadic adult diarrhea in Chaoyang district, Beijing in 2019].

    Jiao, Y / Qi, X / Han, T L / Gao, Y / Zhang, Y / Zhao, J H / Sun, L L

    Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine

    2021  Volume 55, Issue 12, Page(s) 1404–1409

    Abstract: Objective: ...

    Abstract Objective:
    MeSH term(s) Adult ; Beijing ; Diarrhea/epidemiology ; Gastroenteritis ; Humans ; Norovirus/genetics ; Phylogeny
    Language Chinese
    Publishing date 2021-12-28
    Publishing country China
    Document type Journal Article
    ZDB-ID 604575-3
    ISSN 0253-9624
    ISSN 0253-9624
    DOI 10.3760/cma.j.cn112150-20210224-00182
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Analysis of Distributions of HPV Infection in Females with Cervical Lesions in the Western District of Beijing Chaoyang Hospital

    Meili Gong / Chen Chen / Huirong Zhao / Liyuan Guo / Mingxia Sun / Meiyu Song

    Journal of Healthcare Engineering, Vol

    2022  Volume 2022

    Abstract: Objective. To analyze the distribution of human papilloma virus (HPV) infection in women with cervical lesions of different grades and analyze the relationship of high-risk HPV and cervical lesions in order to facilitate targeted prevention. Methods. The ...

    Abstract Objective. To analyze the distribution of human papilloma virus (HPV) infection in women with cervical lesions of different grades and analyze the relationship of high-risk HPV and cervical lesions in order to facilitate targeted prevention. Methods. The infection status of HPV subtype was statistically analyzed in patients who underwent colposcopy examination from April 2017 to June 2019. Results. The infection rate of HPV was 81.4% in chronic cervicitis, 82.9% in 1ow-grade squamous intraepithelial lesion (LSIL), 63.7% in HSIL (high-grade squamous intraepithelial lesion), and 50% in cervical squamous cell carcinoma (CSCC). Among the 16 high-risk HPV types, the top six HPV types with the comprehensive infection rates were HPV16 > HPV52 > HPV58 > HPV18 > HPV51 > HPV53 in turn, and the infection rates were 23.3%, 14.8%, 13.3%, 9.8%, 9.2%, and 8.8%, respectively. The infection rates of HPV16 in chronic cervicitis group, LSIL group, and HSIL group were significantly different. There was no significant difference in the injection rates of HPV52, HPV58, and HPV18 among the three groups. HPV infection rates were highest in the 31–40 years old group, followed by the 41–50 years old group. Conclusion. The distribution of different types of HPV varies in different tissue types, which can be used to develop relevant vaccines to achieve better prevention and treatment of cervical cancer.
    Keywords Medicine (General) ; R5-920 ; Medical technology ; R855-855.5
    Subject code 616
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  4. Article ; Online: Molecular evolution of influenza B virus during 2011-2017 in Chaoyang, Beijing, suggesting the free influenza vaccine policy.

    Lei, Na / Wang, Hai-Bin / Zhang, Yu-Song / Zhao, Jian-Hong / Zhong, Yi / Wang, Yuan-Jie / Huang, Li-Yong / Ma, Jian-Xin / Sun, Qiang / Yang, Lei / Shu, Yue-Long / Li, Shu-Ming / Sun, Ling-Li

    Scientific reports

    2019  Volume 9, Issue 1, Page(s) 2432

    Abstract: Two influenza B virus lineages, B/Victoria and B/Yamagata, are co-circulating in human population. While the two lineages are serologically distinct and TIV only contain one lineage. It is important to investigate the epidemiological and evolutionary ... ...

    Abstract Two influenza B virus lineages, B/Victoria and B/Yamagata, are co-circulating in human population. While the two lineages are serologically distinct and TIV only contain one lineage. It is important to investigate the epidemiological and evolutionary dynamics of two influenza B virus lineages in Beijing after the free influenza vaccine policy from 2007. Here, we collected the nasopharyngeal swabs of 12657 outpatients of influenza-like illness and subtyped by real-time RT-PCR during 2011-2017. The HA and NA genes of influenza B were fully sequenced. The prevalence is the highest in the 6-17 years old group among people infected with influenza B. Yamagata-lineage virus evolved to two inter-clade from 2011-2014 to 2014-2017. The amino acids substitutions of HA1 region were R279K in strains of 2011-2014 and L173Q, M252V in strains of 2014-2017. Substitutions L58P, I146V were observed in HA1 region of Victoria-lineage virus in 2011-2012 and I117V, N129D were showed in 2015-2017. Phylogenetic analysis of NA showed Yamagata-Victoria inter-lineage reassortant occurred in 2013-2014. Influenza B mainly infect the school-aged children in Beijing and the free influenza vaccine inoculation does not seem to block school-age children from infection with influenza B. The antigen characteristics of circulating influenza B were different to the recommended vaccine strains. We concluded that the Victoria-lineage vaccine strain should been changed and the free influenza vaccine should be revalued.
    MeSH term(s) Adolescent ; Age of Onset ; Aged ; Aged, 80 and over ; Beijing/epidemiology ; Child ; Evolution, Molecular ; Female ; Freedom ; Health Policy ; Humans ; Influenza B virus/genetics ; Influenza B virus/immunology ; Influenza Vaccines/therapeutic use ; Influenza, Human/epidemiology ; Influenza, Human/prevention & control ; Male ; Middle Aged ; Personal Autonomy ; Students/statistics & numerical data ; Vaccination/legislation & jurisprudence ; Vaccination/methods
    Chemical Substances Influenza Vaccines
    Language English
    Publishing date 2019-02-21
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-018-38105-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Molecular evolution of influenza B virus during 2011–2017 in Chaoyang, Beijing, suggesting the free influenza vaccine policy

    Na Lei / Hai-bin Wang / Yu-song Zhang / Jian-hong Zhao / Yi Zhong / Yuan-jie Wang / Li-yong Huang / Jian-xin Ma / Qiang Sun / Lei Yang / Yue-long Shu / Shu-ming Li / Ling-li Sun

    Scientific Reports, Vol 9, Iss 1, Pp 1-

    2019  Volume 9

    Abstract: Abstract Two influenza B virus lineages, B/Victoria and B/Yamagata, are co-circulating in human population. While the two lineages are serologically distinct and TIV only contain one lineage. It is important to investigate the epidemiological and ... ...

    Abstract Abstract Two influenza B virus lineages, B/Victoria and B/Yamagata, are co-circulating in human population. While the two lineages are serologically distinct and TIV only contain one lineage. It is important to investigate the epidemiological and evolutionary dynamics of two influenza B virus lineages in Beijing after the free influenza vaccine policy from 2007. Here, we collected the nasopharyngeal swabs of 12657 outpatients of influenza-like illness and subtyped by real-time RT-PCR during 2011–2017. The HA and NA genes of influenza B were fully sequenced. The prevalence is the highest in the 6–17 years old group among people infected with influenza B. Yamagata-lineage virus evolved to two inter-clade from 2011–2014 to 2014–2017. The amino acids substitutions of HA1 region were R279K in strains of 2011–2014 and L173Q, M252V in strains of 2014–2017. Substitutions L58P, I146V were observed in HA1 region of Victoria-lineage virus in 2011–2012 and I117V, N129D were showed in 2015–2017. Phylogenetic analysis of NA showed Yamagata-Victoria inter-lineage reassortant occurred in 2013–2014. Influenza B mainly infect the school-aged children in Beijing and the free influenza vaccine inoculation does not seem to block school-age children from infection with influenza B. The antigen characteristics of circulating influenza B were different to the recommended vaccine strains. We concluded that the Victoria-lineage vaccine strain should been changed and the free influenza vaccine should be revalued.
    Keywords Medicine ; R ; Science ; Q
    Language English
    Publishing date 2019-02-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  6. Article: [Analysis and study of the relationship between indoor and outdoor air pollution PM2.5 in Chaoyang District of Beijing].

    Ai, Liyan / Zhang, Guibin / Zhang, Jinyan / Zhang, Meiyun / Sun, Xiaobing / Wei, Yunfang

    Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine

    2015  Volume 49, Issue 3, Page(s) 279–281

    MeSH term(s) Air Pollution ; Humans
    Language Chinese
    Publishing date 2015-03
    Publishing country China
    Document type Journal Article
    ZDB-ID 604575-3
    ISSN 0253-9624
    ISSN 0253-9624
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: A quantitative reconstruction of a loess-paleosol sequence focused on paleosol genesis: An example from a section at Chaoyang, China

    Sun, Z.-X. / Owens, P. R. / Han, C.-L. / Chen, H. / Wang, X.-L. / Wang, Q.-B.

    Geoderma

    2016  Volume -, Issue 266, Page(s) 25

    Language English
    Document type Article
    ZDB-ID 281080-3
    ISSN 0016-7061
    Database Current Contents Nutrition, Environment, Agriculture

    More links

    Kategorien

  8. Article: A quantitative reconstruction of a loess–paleosol sequence focused on paleosol genesis: An example from a section at Chaoyang, China

    Sun, Zhong-Xiu / Chun-Lan Han / Hui Chen / Phillip R. Owens / Qiu-Bing Wang / Xiao-Lei Wang

    Geoderma. 2016 Mar. 15, v. 266

    2016  

    Abstract: A typical loess–paleosol sequence at Chaoyang in China, deposited continuously since 423ka BP, was ...

    Abstract A typical loess–paleosol sequence at Chaoyang in China, deposited continuously since 423ka BP, was examined to quantitatively reconstruct a loess–paleosol sequence. First, particle size distribution was evaluated based on clay-free fractions (where the sum of sand+silt=100%) and fine-earth fractions and used to characterize the parent material uniformity as well as field morphology, geochemical features, and micro-morphology characteristics. Second, mass balance (MB) and soil reconstruction (SR) approaches were employed to examine the linkage between pedogenesis and loess deposition. The results indicated a uniform loess deposit below 228cm depth, and the presence of four reddish stratigraphic layers interbedded with four yellowish stratigraphic layers, all derived mostly from silt eolian deposits. The main soil pedogenic processes following silt deposition were clay eluviation–illuviation, silification, and ferrallitization. The strongest pedogenesis occurred for the S3 deposit layer during 225–243ka BP and was associated with the greatest mass loss of non-clay (7.6%), Na2O (42%), CaO (21%), MgO (28%), SiO2 (10%), and at the same time with the greatest gains in clay (42%), Fe2O3 (8%), and Al2O3 (4%) together with mass loss changes (MC) of 620g/100cm2. The greatest mass gain changes (234g/100cm2) occurred in the L4 deposit layer during 243–311ka BP and were associated with gains in Na2O (18%) and P2O5 (4.5%) indicating the fastest deposition rate. During the long period of sedimentation (423ka BP) loess deposition was predominant during dry-cold periods, whereas paleosol formation from pedogenic processes was predominant during wet-warm periods. Thus, the formation of paleosols and loess deposition were dependent on the relative rate of pedogenesis and deposition as controlled by climate change. Under an East Asian summer monsoon (EAS) paleosol formation dominated, whereas loess deposition dominated under an East Asian winter monsoon (EAW). Quantification of the degree of loess development (paleosols) or loess deposits aids reconstructing soil genesis and understanding the loess–paleosol formation sequence and its linkage to climate change.
    Keywords aluminum oxide ; calcium oxide ; clay ; climate change ; ferric oxide ; loess ; loess deposition ; magnesium oxide ; monsoon season ; paleosolic soil types ; particle size distribution ; silica ; silt ; soil formation ; summer ; winter ; China
    Language English
    Dates of publication 2016-0315
    Size p. 25-39.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 281080-3
    ISSN 1872-6259 ; 0016-7061
    ISSN (online) 1872-6259
    ISSN 0016-7061
    DOI 10.1016/j.geoderma.2015.12.012
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article ; Online: FDR-TransUNet: A novel encoder-decoder architecture with vision transformer for improved medical image segmentation.

    Chaoyang, Zhang / Shibao, Sun / Wenmao, Hu / Pengcheng, Zhao

    Computers in biology and medicine

    2023  Volume 169, Page(s) 107858

    Abstract: The U-shaped and Transformer architectures have achieved exceptional performance in medical image segmentation and natural language processing, respectively. Their combination has also led to remarkable results but still suffers from enormous loss of ... ...

    Abstract The U-shaped and Transformer architectures have achieved exceptional performance in medical image segmentation and natural language processing, respectively. Their combination has also led to remarkable results but still suffers from enormous loss of image features during downsampling and the difficulty of recovering spatial information during upsampling. In this paper, we propose a novel encoder-decoder architecture for medical image segmentation, which has a flexibly adjustable hybrid encoder and two expanding paths decoder. The hybrid encoder incorporates the feature double reuse (FDR) block and the encoder of Vision Transformer (ViT), which can extract local and global pixel localization information, and alleviate image feature loss effectively. Meanwhile, we retain the original class-token sequence in the Vision Transformer and develop an additional corresponding expanding path. The class-token sequence and abstract image features are leveraged by two independent expanding paths with the deep-supervision strategy, which can better recover the image spatial information and accelerate model convergence. To further mitigate the feature loss and improve spatial information recovery, we introduce successive residual connections throughout the entire network. We evaluated our model on the COVID-19 lung segmentation and the infection area segmentation tasks. The mIoU index increased by 1.5 points and 3.9 points compared to other models which demonstrates a performance improvement.
    MeSH term(s) Humans ; COVID-19 ; Natural Language Processing ; Image Processing, Computer-Assisted
    Language English
    Publishing date 2023-12-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 127557-4
    ISSN 1879-0534 ; 0010-4825
    ISSN (online) 1879-0534
    ISSN 0010-4825
    DOI 10.1016/j.compbiomed.2023.107858
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Correction to: Adsorption capacity of Penicillium amphipolaria XK11 for cadmium and antimony.

    Jingyi, Dai / Chaoyang, Li / Yu, Sun / Yunlin, Zhao / Huimin, Huang / Yingzi, Ma / Zhenggang, Xu

    Archives of microbiology

    2023  Volume 205, Issue 5, Page(s) 204

    Language English
    Publishing date 2023-04-24
    Publishing country Germany
    Document type Published Erratum
    ZDB-ID 124824-8
    ISSN 1432-072X ; 0302-8933
    ISSN (online) 1432-072X
    ISSN 0302-8933
    DOI 10.1007/s00203-023-03543-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top