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Genotype V Japanese Encephalitis Virus Is Emerging

النمط الجيني الخامس فيروس التهاب الدماغ الياباني آخذ في الظهور
Authors: Minghua Li; Shihong Fu; Weixin Chen; Huanyu Wang; Yadong Guo; Qiyong Liu; Yixing Li; +5 Authors

Genotype V Japanese Encephalitis Virus Is Emerging

Abstract

L'encéphalite japonaise (EJ) est un problème de santé publique mondial qui s'est largement répandu dans plus de 20 pays d'Asie et a étendu son aire géographique à la région du Pacifique Sud, y compris l'Australie. L'EJ est devenue la cause la plus importante d'encéphalite virale dans le monde. Les virus de l'encéphalite japonaise (VEJ) sont divisés en cinq génotypes, basés sur la séquence nucléotidique du gène d'enveloppe (E). La souche Muar, isolée du patient en Malaisie en 1952, est le seul exemple de JEV de génotype V. Ici, la souche XZ0934 de JEV a été isolée à partir de Culex tritaeniorhynchus, récolté en Chine. La séquence complète des nucléotides et des acides aminés de la souche XZ0934 a été déterminée. La divergence nucléotidique variait de 20,3 % à 21,4 % et la divergence des acides aminés variait de 8,4 % à 10,0 % par rapport aux 62 isolats connus de JEV qui appartiennent au génotype I-IV. Il révèle une faible similitude entre le XZ0934 et les JEV de génotype I-IV. L'analyse phylogénétique utilisant à la fois le génome complet et les séquences nucléotidiques des gènes structurels démontre que XZ0934 appartient au génotype V. Ceci, à son tour, suggère que le génotype V JEV émerge dans les zones endémiques du JEV. Ainsi, une surveillance et un diagnostic accrus de l'encéphalite virale causée par le JEV de génotype V sont un problème très préoccupant pour les pays dans lesquels le JEV est endémique.

La encefalitis japonesa (JE) es un problema de salud pública mundial que se ha extendido ampliamente a más de 20 países de Asia y ha extendido su rango geográfico a la región del Pacífico sur, incluida Australia. JE se ha convertido en la causa más importante de encefalitis viral en el mundo. Los virus de la encefalitis japonesa (JEV) se dividen en cinco genotipos, basados en la secuencia de nucleótidos del gen de la envoltura (E). La cepa Muar, aislada de un paciente en Malasia en 1952, es el único ejemplo del genotipo V JEV. Aquí, la cepa XZ0934 de JEV se aisló de Culex tritaeniorhynchus, recolectada en China. Se ha determinado la secuencia completa de nucleótidos y aminoácidos de la cepa XZ0934. La divergencia de nucleótidos varió de 20.3% a 21.4% y la divergencia de aminoácidos varió de 8.4% a 10.0% en comparación con los 62 aislados de JEV conocidos que pertenecen al genotipo I-IV. Revela una baja similitud entre XZ0934 y las JEV de genotipo I-IV. El análisis filogenético utilizando secuencias de nucleótidos del genoma completo y del gen estructural demuestra que XZ0934 pertenece al genotipo V. Esto, a su vez, sugiere que el genotipo V JEV está emergiendo en áreas endémicas de JEV. Por lo tanto, el aumento de la vigilancia y el diagnóstico de la encefalitis viral causada por el VJE de genotipo V es un problema de gran preocupación para las naciones en las que el VJE es endémico.

Japanese encephalitis (JE) is a global public health issue that has spread widely to more than 20 countries in Asia and has extended its geographic range to the south Pacific region including Australia. JE has become the most important cause of viral encephalitis in the world. Japanese encephalitis viruses (JEV) are divided into five genotypes, based on the nucleotide sequence of the envelope (E) gene. The Muar strain, isolated from patient in Malaya in 1952, is the sole example of genotype V JEV. Here, the XZ0934 strain of JEV was isolated from Culex tritaeniorhynchus, collected in China. The complete nucleotide and amino acid sequence of XZ0934 strain have been determined. The nucleotide divergence ranged from 20.3% to 21.4% and amino acid divergence ranged from 8.4% to 10.0% when compared with the 62 known JEV isolates that belong to genotype I-IV. It reveals low similarity between XZ0934 and genotype I-IV JEVs. Phylogenetic analysis using both complete genome and structural gene nucleotide sequences demonstrates that XZ0934 belongs to genotype V. This, in turn, suggests that genotype V JEV is emerging in JEV endemic areas. Thus, increased surveillance and diagnosis of viral encephalitis caused by genotype V JEV is an issue of great concern to nations in which JEV is endemic.

التهاب الدماغ الياباني (JE) هو مشكلة صحية عامة عالمية انتشرت على نطاق واسع في أكثر من 20 دولة في آسيا ووسعت نطاقها الجغرافي إلى منطقة جنوب المحيط الهادئ بما في ذلك أستراليا. أصبحت JE أهم سبب لالتهاب الدماغ الفيروسي في العالم. تنقسم فيروسات التهاب الدماغ الياباني (JEV) إلى خمسة أنماط وراثية، بناءً على تسلسل النوكليوتيدات لجين المغلف (E). سلالة موار، المعزولة عن المريض في مالايا في عام 1952، هي المثال الوحيد على النمط الجيني V JEV. هنا، تم عزل سلالة XZ0934 من JEV من Culex trita Seniorhynchus، التي تم جمعها في الصين. تم تحديد تسلسل النوكليوتيدات والأحماض الأمينية الكامل لسلالة XZ0934. تراوح تباعد النيوكليوتيدات من 20.3 ٪ إلى 21.4 ٪ وتراوح تباعد الأحماض الأمينية من 8.4 ٪ إلى 10.0 ٪ بالمقارنة مع 62 من عزلات JEV المعروفة التي تنتمي إلى النمط الجيني I - IV. يكشف عن تشابه منخفض بين XZ0934 والنمط الجيني I - IV JEVs. يوضح التحليل الوراثي باستخدام كل من تسلسل الجينوم الكامل والنيوكليوتيدات الجينية الهيكلية أن XZ0934 ينتمي إلى النمط الجيني V. وهذا بدوره يشير إلى أن النمط الجيني V JEV يظهر في المناطق الموبوءة بـ JEV. وبالتالي، فإن زيادة مراقبة وتشخيص التهاب الدماغ الفيروسي الناجم عن النمط الوراثي الخامس لفيروس التهاب الدماغ المشترك هي قضية تثير قلقًا كبيرًا لدى الدول التي يتوطن فيها فيروس التهاب الدماغ المشترك.

Keywords

China, Genotype, Viral RNA Silencing, RC955-962, Molecular Sequence Data, Genome, Viral, Plant Science, FOS: Health sciences, Nucleic acid sequence, Gene, Culex tritaeniorhynchus, Agricultural and Biological Sciences, Arctic medicine. Tropical medicine, Virology, Health Sciences, Genetics, Animals, Cluster Analysis, Global Impact of Arboviral Diseases, Biology, Phylogeny, Public Health, Environmental and Occupational Health, Life Sciences, Sequence Analysis, DNA, Viral encephalitis, Virus, Culex, Infectious Diseases, Encephalitis Viruses, Japanese, FOS: Biological sciences, Viral RNA Silencing and Plant Immunity, RNA, Viral, Medicine, Encephalitis, Female, Japanese encephalitis, Public aspects of medicine, RA1-1270, Viral Hemorrhagic Fevers and Zoonotic Infections, Research Article, Phylogenetic tree

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
144
Top 1%
Top 10%
Top 1%
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