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Comparison of Four Diagnostic Tests Methods for the Detection of Dengue Virus Non-Structural-1 Antigen and IgM/IgG Antibodies

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Journal of Biosciences and Medicines 2022年第5期10卷 179-190页

作者： Moses N. Ikegbunam Ifeyinwa T.O. Onochie-Igbinedion Nzube F. Ekpunobi Abone Harrison Enyi Emmanuel simon nkpeh u.hie Micheal u. Adiukwu Charles O. Esimone Department of Pharmaceutical Microbiology and Biotechnology Nnamdi Azikiwe University Awka Nigeria Molecular Research Foundation for Students and Scientists Nnamdi Azikiwe University Awka Nigeria Department of Medical Microbiology Nnamdi Azikiwe University Awka Nigeria Department of Pharmaceutics University of Nigeria Nsukka (UNN) Nsukka Nigeria

Objectives: Dengue virus (DENV) infection is a mosquito-borne disease that stands out as one of the major public health issues and has a wide-ranging geographical distribution throughout the tropics and subtropics. The general alarming increase in the number of cases over the last two decades can be attributed to an extent by the change in national practices to keeping records and reporting dengue to the Ministries of Health, and WHO. Dengue diagnosis is routinely carried out by detection of dengue virus (DENV) antigen NS1 (Non-structural Antigen 1) and/or anti-DENV IgM/IgG antibodies using enzyme-linked immunosorbent assays (ELISAs) and rapid diagnostic tests (RDTs). This study compared the performance of three RDTs and one ELISA used for dengue diagnosis in southeastern, Nigeria. Design: This study adopted a cross-sectional design that included prospective hospital-based surveillance of cases among febrile participants attending two major health facilities within the southeastern region of Nigeria. In this study, 338 HIV-infected participants from two teaching hospitals in Nigeria’s southeast were systematically tested for Dengue with four methods: NS1 RDT, IgG RDT, IgM RDT, and NS1 ELISA. Their specificities and sensitivities were compared, as well as their level of concordance. Their respective performances were also evaluated using the Receivers Operational curve (ROC). Results: Out of the 338 patients, the dengue prevalence from the four dengue diagnostic methods Dengue virus NS1 ELISA, NS1 RDT, IgM and IgG seropositivity were 8.9%, 0.6%, 5.6%, and 8.0%, respectively. The Dengue IgM RDT test indicated 36.8% sensitivity, 92.8% specificity, the IgG anti-dengue specific test indicated 29.6% sensitivity, 92.9% specificity and the dengue NS1 RDT test indicated 3.3% sensitivity, 99.4% specificity when compared with the Dengue NSI Elisa test method as a reference method. Conclusion: The use of NSI ELISA for DENV diagnosis showed good performance and the RDTs showed,

关键词： Dengue Virus Diagnosis Methods Comparison Performance Southeastern Nigeria

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Pilot Study: Magnesium Sulphate Administration and Early Resolution of Hypoxic Ischemic Encephalopathy in Severe Perinatal Asphyxia

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Open Journal of Pediatrics 2019年第1期9卷 89-102页

作者： simon Pius Mustapha Bello Jose Pwavimbo Ambe Yenti Machoko Adama Yusuf Clement Rhoda Genesis Mark Inusa Kamas Department of Paediatrics College of Medical Sciences University of Maiduguri Maiduguri Nigeria Department of Economics Faculty of Management Sciences University of Maiduguri Maiduguri Nigeria Department of Chemical Pathology Laboratory University of Maiduguri Teaching Hospital Maiduguri Nigeria APIN/FHI HIV/AIDS Data Section University of Maiduguri Teaching Hospital Maiduguri Nigeria

Introduction: Perinatal asphyxia is one of the leading causes of perinatal death and a recognized cause of neuromotor disability among survivors. About 20% - 30% of asphyxiated newborns who develop hypoxic ischemic encephalopathy (hie) die during the neonatal period, and one third to one half of survivors are left with cerebral palsy and mental retardation. Objective of the Study: Was to determine the effect of magnesium sulphate as neuroprotective drug in hypoxic ischemic encephalopathy resulting from severe perinatal asphyxia. Materials and Methods: A prospective administration of magnesium sulphate to 52 severely asphyxiated newborns with hypoxic ischemic encephalopathy was conducted over one year period from 1st August 2017 to 31st July 2018. Results: Most (96.2%) of patients were term baby (GA ≥ 37 weeks). Most (90.4%) were in-hospital born, vaginal delivery accounted for 55.8% and 44.2% assisted delivery respectively. About one half (55.8%) of the patients commenced MgSO4 therapy at urs after birth, while 30.6% and 16.6% commenced MgSO4 therapy at 6 - urs and >24 hours after birth respectively. Time of commencement of first enteral feeding (p = 0.018) and time to full enteral feeding (p = 0.015) showed significant correlation with the survival without neurological deficit. The earlier the commencement of MgSO4 therapy, the better the proportion with strong palmar grasp, sucking reflex, tone and early resolution of encephalopathy. Conclusion: All the study subjects treated with magnesium sulphate had impressive improvement;however there is a need to conduct randomized placebo-controlled trial treatment of severe perinatal asphyxia so as to determine its effects on early resolution of hypoxic ischemic encephalopathy/neuroprotective activity.

关键词： Severe Perinatal Asphyxia hie Magnesium Sulphate Neuroprotection Early Breastfeeding

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