Abstract:
:Host jump can result in deadly pandemic events when avian influenza A viruses broaden their host specificity and become able to infect mammals, including humans. Haemagglutinin-the major capsid protein in influenza A viruses-is subjected to high rate mutations, of which several occur at its "head": the receptor-binding domain that mediates specific binding to host cell receptors. Such surface-changing mutations may lead to antigenically novel influenza A viruses hence in pandemics by host jump and in vaccine escape by antigenic drift. Changes in haemagglutinin surface electrostatics have been recently associated with antigenic drift and with clades evolution and spreading in H5N1 and H9N2 viruses. We performed a comparative analysis of haemagglutinin surface electrostatics to investigate clustering and eventual fingerprints among representative pandemic (H5 and H7) and nonpandemic (H4 and H6) avian influenza viral subtypes. We observed preferential sorting of viruses isolated from mammalian/human hosts among these electrostatic clusters of a subtype; however, sorting was not "100% specific" to the different clusters. Therefore, electrostatic fingerprints can help in understanding, but they cannot explain alone the host jumping mechanism.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Righetto I,Filippini Fdoi
10.1155/2018/3870508subject
Has Abstractpub_date
2018-05-17 00:00:00pages
3870508eissn
2314-6133issn
2314-6141journal_volume
2018pub_type
杂志文章abstract::We evaluated the effects of mechanical stimulation on the osteogenic differentiation of human intraoral mesenchymal stem and progenitor cells (MSPCs) using the Flexcell FX5K Tension System that mediated cyclic tensile stretch on the cells. MSPCs were isolated from human mandibular retromolar bones and characterized us...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2014/189516
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/932923
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/261745
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
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更新日期:2020-10-22 00:00:00
abstract::RRM2B gene encodes ribonucleoside-diphosphate reductase subunit M2 B, the p53-inducible small subunit (p53R2) of ribonucleotide reductase (RNR), an enzyme catalyzing dNTP synthesis for mitochondrial DNA. Defects in this gene may cause severe mitochondrial disease affecting mainly the nervous system. This study is aime...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/7614634
更新日期:2020-07-25 00:00:00
abstract::Visual motor integration (VMI) is a vital ability in childhood development, which is associated with the performance of many functional skills. By using the Beery Developmental Test Package and Executive Function Tasks, the present study explored the VMI development and its factors (visual perception, motor coordinati...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/6264254
更新日期:2017-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/934239
更新日期:2013-01-01 00:00:00
abstract::Myostatin, a TGF-β family member, is associated with inhibition of muscle growth and differentiation and might interact with the IGF-1 signaling pathway. Since IGF-1 is secreted at a bioactive level by adipose tissue-derived mesenchymal stem cells (ASCs), these cells (ASCs) provide a therapeutic option for Duchenne Mu...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/129048
更新日期:2014-01-01 00:00:00
abstract::Data on genotypic diversity of Mycobacterium tuberculosis complex (MTBC) is important to understand its epidemiology, human adaptation, clinical phenotypes, and drug resistance. This study aimed to characterize MTBC clinical isolates circulating in a predominantly pastoralist area in Ethiopia, a country where tubercul...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/238532
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/261813
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/323046
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/429198
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/1989817
更新日期:2020-03-30 00:00:00
abstract::Ultrasound tomography (UST) image segmentation is fundamental in breast density estimation, medicine response analysis, and anatomical change quantification. Existing methods are time consuming and require massive manual interaction. To address these issues, an automatic algorithm based on GrabCut (AUGC) is proposed i...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2059036
更新日期:2017-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/6126534
更新日期:2020-04-19 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/6665974
更新日期:2020-12-22 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/963891
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/408683
更新日期:2014-01-01 00:00:00
abstract::Increasing consumption of tobacco and alcohol has led to a steady increase in the incidence of head and neck cancers in Asia. The drawbacks associated with the existing chemotherapeutic and surgical interventions have necessitated the development of a safer alternative for therapy of head and neck cancers. In this stu...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/424239
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/529519
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/963149
更新日期:2014-01-01 00:00:00
abstract:Background:Comparison of single-level open and minimally invasive transforaminal lumbar interbody fusions (O-TLIF and MI-TLIF) of a single surgeon and presentation of his MI-TLIF learning curve in a retrospective observational cohort study. Methods:27 MI-TLIF and 31 O-TLIF patients, performed between 03/01/2013 and 03...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/3798537
更新日期:2020-01-25 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/8582901
更新日期:2018-05-02 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2381482
更新日期:2017-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/5474828
更新日期:2018-06-26 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/417091
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/2193453
更新日期:2019-10-02 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/413708
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2019/3467121
更新日期:2019-10-15 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/5974693
更新日期:2017-01-01 00:00:00