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  1. Article: [Pregnancy-preserving and maternal-fetal management in a patient with rare large cell neuroendocrine carcinoma of the uterine cervix].

    Geyang, Dai / Gaowen, Chen / Xiaoxuan, L I / Youhong, Zheng / Yuan, Wang / Xingsong, Li / Jing, L I / Jing, Zhou / Yu, Xie / Yifeng, Wang

    Nan fang yi ke da xue xue bao = Journal of Southern Medical University

    2021  Volume 41, Issue 1, Page(s) 1–9

    Abstract: Objective: To explore the strategy of pregnancy-preserving and maternal- fetal management in patients with primary gynecologic neuroendocrine tumors (gNETs) during pregnancy.: Methods: We performed whole genome sequencing (WGS) for analyzing maternal ...

    Abstract Objective: To explore the strategy of pregnancy-preserving and maternal- fetal management in patients with primary gynecologic neuroendocrine tumors (gNETs) during pregnancy.
    Methods: We performed whole genome sequencing (WGS) for analyzing maternal and fetal somatic and germline single nucleotide variations (SNVs) and small insertions and deletions (InDels) for a 29-year-old pregnant woman diagnosed with stage IB2 large cell neuroendocrine carcinoma (LCNEC) and adenocarcinoma in the cervix. A systematic literature review was performed to explore the strategies for treatment of such rare histological type while maintaining pregnancy.
    Results: Global case analysis of cervical NETs during pregnancy suggested that negative lymph node metastasis and an early FIGO stage were potentially associated with a good prognosis of the patients. In the case presented herein, a pregnancy-preserving strategy was adopted and favorable maternal-fetal outcomes were achieved after neoadjuvant chemotherapy, radical surgery and postoperative systemic chemotherapy. At 35
    Conclusions: Although gNETs in pregnancy are rare and highly risky, pregnancy-preserving managements of gNETs can still be considered and favorable maternalfetal outcomes are possible with proper assessment of the clinical indications and implementation of multimodal treatments. Precise treatment and follow-up strategies based on the results of WGS for risk-reducing intervention of cancer recurrence or occurrence can potentially benefit the patient and the neonate.
    MeSH term(s) Adenocarcinoma ; Adult ; Carcinoma, Neuroendocrine/genetics ; Child ; Female ; Humans ; Infant, Newborn ; Neoplasm Recurrence, Local ; Pregnancy ; Uterine Cervical Neoplasms/genetics
    Language Chinese
    Publishing date 2021-01-25
    Publishing country China
    Document type Case Reports ; Journal Article ; Systematic Review
    ZDB-ID 2250951-3
    ISSN 1673-4254
    ISSN 1673-4254
    DOI 10.12122/j.issn.1673-4254.2021.01.01
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Codon usage variation of Zika virus: The potential roles of NS2B and NS4A in its global pandemic

    Lin, Dechun / Geyang Dai / Jinmin Ma / Liqiang Li / Nitin Saksena / Qingqing Yin / Rangke Wu / Tian Xie / Wanyu Li / Xiaoguang Chen / Xiaohong Zhou

    Virus research. 2018 Mar. 02, v. 247

    2018  

    Abstract: A comprehensive demonstration of Zika virus (ZIKV) molecular evolution is essential for understanding its adaptation and expansion in its recent pandemics. Despite several studies on mutations and codon usage in ZIKVs, the variations in codon usage ... ...

    Abstract A comprehensive demonstration of Zika virus (ZIKV) molecular evolution is essential for understanding its adaptation and expansion in its recent pandemics. Despite several studies on mutations and codon usage in ZIKVs, the variations in codon usage patterns across individual genes and their biological implication remains unclear. Here, we performed a gene-by-gene comparison of the codon usage variation in ZIKVs of the African and Asian lineages. We found that besides the evidence of positive selection (Ka/Ks >1) in the Asian lineage of the ZIKV genome, codon usage patterns were gene-specific and codon usage variation of ZIKV genes, was possibly constrained by their individual functional features, such as transmembrane domains, or antigenicity. In particular, the NS2B and NS4A genes showed distinct codon usage patterns, clearly separating them from the clusters of other genes in the correspondence analysis (CA). In the Asian lineage, the NS2B and NS4A genes showed the highest codon usage bias (ENC values: 51.01 ± 0.72 and 48.89 ± 0.99 respectively), and were subjected to the highest translation selection (ENCobs/ENCexp ratio: 0.847 ± 0.0297 and 0.828 ± 0.0233 respectively) in comparison to the African lineages of ZIKV. The CpG frequency of the NS2B showed a gradual ascending trend in the Asian ZIKV lineages, while in NS4A it was constrained along with the expansion of the Asian lineage. Furthermore, between the African and Asian lineages, differentiated and specific over-represented codons were more prominent in the NS2B and NS4A. Together, our study implies that ZIKVs are in the process of evolutionary fine tuning their codon as seen in the recent pandemics, and NS2B and NS4A could have played a potential role in the molecular evolution of the Asian lineage and their establishment.
    Keywords codons ; correspondence analysis ; genes ; mutation ; pandemic ; translation (genetics) ; Zika virus
    Language English
    Dates of publication 2018-0302
    Size p. 71-83.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 605780-9
    ISSN 1872-7492 ; 0168-1702
    ISSN (online) 1872-7492
    ISSN 0168-1702
    DOI 10.1016/j.virusres.2018.01.014
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Human Chrysomya bezziana myiasis

    Xianyi Zhou / Dzinkambani Moffat Kambalame / Sitong Zhou / Xiang Guo / Dan Xia / Yemei Yang / Rangke Wu / Juan Luo / Fenglong Jia / Mingchi Yuen / Yuehua Xu / Geyang Dai / Li Li / Tian Xie / Santhosh Puthiyakunnon / Wenxia Wei / Lixian Xie / Siting Liang / Yuqin Feng /
    Songgen Huang / Yongxuan Hu / Qianzhen Mo / Rongjia Mai / Xiaoqing Zhang / Philip Spradbery / Xiaohong Zhou

    PLoS Neglected Tropical Diseases, Vol 13, Iss 10, p e

    A systematic review.

    2019  Volume 0007391

    Abstract: BACKGROUND:Myiasis due to Old World screw-worm fly, Chrysomya bezziana, is an important obligate zoonotic disease in the OIE-list of diseases and is found throughout much of Africa, the Indian subcontinent, southeast and east Asia. C. bezziana myiasis ... ...

    Abstract BACKGROUND:Myiasis due to Old World screw-worm fly, Chrysomya bezziana, is an important obligate zoonotic disease in the OIE-list of diseases and is found throughout much of Africa, the Indian subcontinent, southeast and east Asia. C. bezziana myiasis causes not only morbidity and death to animals and humans, but also economic losses in the livestock industries. Because of the aggressive and destructive nature of this disease in hosts, we initiated this study to provide a comprehensive understanding of human myiasis caused by C. bezziana. METHODS:We searched the databases in English (PubMed, Embase and African Index Medicus) and Chinese (CNKI, Wanfang, and Duxiu), and international government online reports to 6th February, 2019, to identify studies concerning C. bezziana. Another ten human cases in China and Papua New Guinea that our team had recorded were also included. RESULTS:We retrieved 1,048 reports from which 202 studies were ultimately eligible for inclusion in the present descriptive analyses. Since the first human case due to C. bezziana was reported in 1909, we have summarized 291 cases and found that these cases often occurred in patients with poor hygiene, low socio-economic conditions, old age, and underlying diseases including infections, age-related diseases, and noninfectious chronic diseases. But C. bezziana myiasis appears largely neglected as a serious medical or veterinary condition, with human and animal cases only reported in 16 and 24 countries respectively, despite this fly species being recorded in 44 countries worldwide. CONCLUSION:Our findings indicate that cryptic myiasis cases due to the obligate parasite, C. bezziana, are under-recognized. Through this study on C. bezziana etiology, clinical features, diagnosis, treatment, epidemiology, prevention and control, we call for more vigilance and awareness of the disease from governments, health authorities, clinicians, veterinary workers, nursing homes, and also the general public.
    Keywords Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
    Subject code 610
    Language English
    Publishing date 2019-10-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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