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Therapeutic Approaches for Zika Virus Infection of the Nervous System.

ABSTRACT: Zika virus has spread rapidly in the Americas and has caused devastation of human populations affected in these regions. The virus causes teratogenic effects involving the nervous system, and in adults and children can cause a neuropathy similar to Guillain-Barré syndrome, an anterior myelitis, or, rarely, an encephalitis. While major efforts have been undertaken to control mosquito populations that spread the virus and to develop a vaccine, drug development that directly targets the virus in an infected individual to prevent or treat the neurological manifestations is necessary. Rational and targeted drug development is possible since the viral life cycle and the structure of the key viral proteins are now well understood. While several groups have identified therapeutic candidates, their approaches differ in the types of screening processes and viral assays used. Animal studies are available for only a few compounds. Here we provide an exhaustive review and compare each of the classes of drugs discovered, the methods used for drug discovery, and their potential use in humans for the prevention or treatment of neurological complications of Zika virus infection.

SUBMITTER: Abrams RPM

PROVIDER: S-EPMC5722777 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

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Therapeutic Approaches for Zika Virus Infection of the Nervous System.

Abrams Rachel P M RPM Solis Jamie J Nath Avindra A

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics 20171001 4

Zika virus has spread rapidly in the Americas and has caused devastation of human populations affected in these regions. The virus causes teratogenic effects involving the nervous system, and in adults and children can cause a neuropathy similar to Guillain-Barré syndrome, an anterior myelitis, or, rarely, an encephalitis. While major efforts have been undertaken to control mosquito populations that spread the virus and to develop a vaccine, drug development that directly targets the virus in an ...[more]

PMID: 28952036

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Project description:IntroductionIn October 2015, an epidemic of Zika began in Colombia's geographic areas with a high population of mosquitoes of the genus Aedes. We aimed to describe the fetal brain ultrasound findings in pregnant women with active symptoms or a history of symptoms suggestive of Zika virus (ZIKV) infection.Material and methodsEligible pregnant women were tested with reverse transcriptase-polymerase chain reaction (RT-PCR) for ZIKV and followed prospectively using detailed anatomic ultrasound and transvaginal neurosonography to detect structural anomalies of the fetal central nervous system (CNS).ResultsA total of 115 symptomatic women with a positive ZIKV RT-PCR and 55 with a negative ZIKV RT-PCR were enrolled in the study; CNS compromise of the fetus occurred in 22% and 17%, respectively (p = 0.255). Callosal dysgenesis (14.5%) was the most frequent anomaly of the CNS, followed by microcephaly (13.6%) and neuronal migration disorders (8.3%). When symptomatic ZIKV RT-PCR-positive women were categorized by trimester of infection, CNS anomalies were present in 40% of first-trimester infections, compared with 21% and 7% in second- and third-trimester infections (p = 0.002). CNS anomalies were also more severe in first-trimester-infected fetuses than in second- and third-trimester-infected fetuses. The high prevalence of CNS anomalies in fetuses of symptomatic ZIKV RT-PCR negative women suggests a high rate of false-negative cases and an even higher prevalence of CNS anomalies than observed in this study.ConclusionsThe prevalence of fetal CNS anomalies was higher than previously reported in the literature for both symptomatic RT-PCR-positive and -negative pregnant women. Corpus callosum anomalies, microcephaly, neuronal migration disorders, and brain parenchymal hyperechogenicities were the most frequent CNS anomalies detected. In addition, CNS anomalies were more frequent and severe in infected fetuses during the first trimester of pregnancy than during the second or third trimester.

Dataset Information

Therapeutic Approaches for Zika Virus Infection of the Nervous System.

Publications

Therapeutic Approaches for Zika Virus Infection of the Nervous System.

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