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Human African Trypanosomiasis: A Highly Neglected Neurological Disease

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Neglected Tropical Diseases and Conditions of the Nervous System

Abstract

Human African trypanosomiasis (HAT) or sleeping sickness is a severe vector-borne disease, with marked involvement of the peripheral and central nervous system. Still endemic in sub-Saharan Africa, HAT is caused by transmission of subspecies of the protozoan parasites Trypanosoma brucei (T. b.) through bites of tsetse flies (genus Glossina). Foci of HAT are reported mostly in remote, resource-poor settings, and areas of political instability. The disease has a chronic form caused by T. b. gambiense in Western and Central Africa, and an acute form caused by T. b. rhodesiense in Eastern and Southern Africa. Both forms, almost invariably fatal without treatment, evolve from a first, hemolymphatic stage to a second, meningoencephalitic stage due to T. b. brain invasion. Clinical features involve a constellation of sensory, motor and neuropsychiatric signs and symptoms, with a characteristic sleep disorder leading to sleep-wake cycle disorganization and sleep structure alterations. Therapy currently available to cure the second stage of both HAT forms is toxic. Stage biomarkers and safer therapy are urgently needed. Clinical objective evaluation is essential for diagnostic purposes, treatment assessment and patients’ follow-up. The recent decline in the number of reported new HAT cases should not foster further neglect of this highly neglected nervous system infection.

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Authors and Affiliations

  1. Polyclinique Marie-Louise Poto-Djembo, Pointe-Noire, République du Congo

    Alain Buguet

  2. Clinique Municipale Albert Leyono, Brazzaville, République du Congo

    Ghislain Mpanzou

  3. Department of Neurological and Movement Sciences, School of Medicine, University of Verona, Strada Le Grazie 8, 37134, Verona, Italy

    Marina Bentivoglio

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  1. Alain Buguet
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  2. Ghislain Mpanzou
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  3. Marina Bentivoglio
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Correspondence to Marina Bentivoglio .

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Editors and Affiliations

  1. Department of Neurological and Movement Sciences, University of Verona, Verona, Verona, Italy

    Marina Bentivoglio

  2. Department of Neurology and Neurosurgery, Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP), São Paulo, Brazil

    Esper A. Cavalheiro

  3. Department of Neuroscience, Karolinska Institute, Stockholm, Sweden

    Krister Kristensson

  4. Department of Physiology School of MedicineCollege of Health Science, University of Nairobi, Nairobi, Kenya

    Nilesh B. Patel

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Buguet, A., Mpanzou, G., Bentivoglio, M. (2014). Human African Trypanosomiasis: A Highly Neglected Neurological Disease. In: Bentivoglio, M., Cavalheiro, E., Kristensson, K., Patel, N. (eds) Neglected Tropical Diseases and Conditions of the Nervous System. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8100-3_9

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