Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the disease

Nodding syndrome is a devastating neurological disorder, mostly affecting children in eastern Africa. An estimated 10 000 children are affected. Uganda, one of the most affected countries, set out to systematically investigate the disease and develop interventions for it. On December 21, 2015, the M...

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Main Authors: Richard Idro, Bernard Opar, Joseph Wamala, Catherine Abbo, Sylvester Onzivua, Deogratius Amos Mwaka, Angelina Kakooza-Mwesige, Anthony Mbonye, Jane R. Aceng
Format: Article
Language:English
Published: Elsevier 2016-04-01
Series:International Journal of Infectious Diseases
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1201971216309882
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author Richard Idro
Bernard Opar
Joseph Wamala
Catherine Abbo
Sylvester Onzivua
Deogratius Amos Mwaka
Angelina Kakooza-Mwesige
Anthony Mbonye
Jane R. Aceng
author_facet Richard Idro
Bernard Opar
Joseph Wamala
Catherine Abbo
Sylvester Onzivua
Deogratius Amos Mwaka
Angelina Kakooza-Mwesige
Anthony Mbonye
Jane R. Aceng
author_sort Richard Idro
collection DOAJ
description Nodding syndrome is a devastating neurological disorder, mostly affecting children in eastern Africa. An estimated 10 000 children are affected. Uganda, one of the most affected countries, set out to systematically investigate the disease and develop interventions for it. On December 21, 2015, the Ministry of Health held a meeting with community leaders from the affected areas to disseminate the results of the investigations made to date. This article summarizes the presentation and shares the story of studies into this peculiar disease. It also shares the results of preliminary studies on its pathogenesis and puts into perspective an upcoming treatment intervention. Clinical and electrophysiological studies have demonstrated nodding syndrome to be a complex epilepsy disorder. A definitive aetiological agent has not been established, but in agreement with other affected countries, a consistent epidemiological association has been demonstrated with infection by Onchocerca volvulus. Preliminary studies of its pathogenesis suggest that nodding syndrome may be a neuroinflammatory disorder, possibly induced by antibodies to O. volvulus cross-reacting with neuron proteins. Histological examination of post-mortem brains has shown some yet to be characterized polarizable material in the majority of specimens. Studies to confirm these observations and a clinical trial are planned for 2016.
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spelling doaj.art-3726e5995d5940b6836e0df2749250752022-12-21T21:52:25ZengElsevierInternational Journal of Infectious Diseases1201-97121878-35112016-04-0145C11211710.1016/j.ijid.2016.03.002Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the diseaseRichard Idro0Bernard Opar1Joseph Wamala2Catherine Abbo3Sylvester Onzivua4Deogratius Amos Mwaka5Angelina Kakooza-Mwesige6Anthony Mbonye7Jane R. Aceng8Department of Paediatrics and Child Health, Makerere University College of Health Sciences, PO Box 7072, Kampala, UgandaMinistry of Health Headquarters, Kampala, UgandaMinistry of Health Headquarters, Kampala, UgandaDepartment of Paediatrics and Child Health, Makerere University College of Health Sciences, PO Box 7072, Kampala, UgandaMulago Hospital, Kampala, UgandaDepartment of Paediatrics and Child Health, Makerere University College of Health Sciences, PO Box 7072, Kampala, UgandaDepartment of Paediatrics and Child Health, Makerere University College of Health Sciences, PO Box 7072, Kampala, UgandaMinistry of Health Headquarters, Kampala, UgandaMinistry of Health Headquarters, Kampala, UgandaNodding syndrome is a devastating neurological disorder, mostly affecting children in eastern Africa. An estimated 10 000 children are affected. Uganda, one of the most affected countries, set out to systematically investigate the disease and develop interventions for it. On December 21, 2015, the Ministry of Health held a meeting with community leaders from the affected areas to disseminate the results of the investigations made to date. This article summarizes the presentation and shares the story of studies into this peculiar disease. It also shares the results of preliminary studies on its pathogenesis and puts into perspective an upcoming treatment intervention. Clinical and electrophysiological studies have demonstrated nodding syndrome to be a complex epilepsy disorder. A definitive aetiological agent has not been established, but in agreement with other affected countries, a consistent epidemiological association has been demonstrated with infection by Onchocerca volvulus. Preliminary studies of its pathogenesis suggest that nodding syndrome may be a neuroinflammatory disorder, possibly induced by antibodies to O. volvulus cross-reacting with neuron proteins. Histological examination of post-mortem brains has shown some yet to be characterized polarizable material in the majority of specimens. Studies to confirm these observations and a clinical trial are planned for 2016.http://www.sciencedirect.com/science/article/pii/S1201971216309882Nodding syndromeAetiologyOnchocerca volvulusPathogenesisTreatment
spellingShingle Richard Idro
Bernard Opar
Joseph Wamala
Catherine Abbo
Sylvester Onzivua
Deogratius Amos Mwaka
Angelina Kakooza-Mwesige
Anthony Mbonye
Jane R. Aceng
Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the disease
International Journal of Infectious Diseases
Nodding syndrome
Aetiology
Onchocerca volvulus
Pathogenesis
Treatment
title Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the disease
title_full Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the disease
title_fullStr Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the disease
title_full_unstemmed Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the disease
title_short Is nodding syndrome an Onchocerca volvulus-induced neuroinflammatory disorder? Uganda's story of research in understanding the disease
title_sort is nodding syndrome an onchocerca volvulus induced neuroinflammatory disorder uganda s story of research in understanding the disease
topic Nodding syndrome
Aetiology
Onchocerca volvulus
Pathogenesis
Treatment
url http://www.sciencedirect.com/science/article/pii/S1201971216309882
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