Olfactory outcomes in Zika virus-associated Guillain-Barré syndrome
© 2022 European Academy of Neurology..
BACKGROUND AND PURPOSE: Zika virus (ZIKV) infection has been associated with Guillain-Barré syndrome (GBS). However, little is known about the consequence of ZIKV infection on olfaction in humans.
METHODS: Immediately before the COVID-19 outbreak, we prospectively investigated the olfactory capacities of 19 patients with ZIKV-associated GBS from the French West Indies and compared them to nine controls from the same population, with GBS of similar severity but independent of ZIKV infection. To provide further evidence that ZIKV infection induces smell alteration, we investigated the consequences of ZIKV infection on olfactory abilities using a mouse model.
RESULTS: Patients with GBS-ZIKA+ had poorer olfactory function than GBS-non-ZIKA, even 1-2 years after the acute phase. The proportion of patients with hyposmia was significantly higher in the GBS-ZIKA+ than in the GBS-non-ZIKA group (68.4% vs. 22.2%, p = 0.042). These deficits were characterized by lower threshold and identification scores and were independent from GBS severity. Additionally, ZIKV infection was found to impair olfaction in immunodeficient mice infected with ZIKV. High viral load was observed in their olfactory system and downstream brain structures. ZIKV promoted both cellular damage in the olfactory neuroepithelium and protracted inflammation of the olfactory bulb, likely accounting for smell alteration.
CONCLUSIONS: Patients with ZIKV-related GBS had poorer long-term olfactory function than patients with GBS-non-ZIKA, and ZIKV-infected mice are hyposmic. These observations suggest that ZIKV belongs on the list of viruses affecting the olfactory system. Clinical evaluation of the olfactory system should be considered for ZIKV-infected patients.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:29 |
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| Enthalten in: |
European journal of neurology - 29(2022), 9 vom: 01. Sept., Seite 2823-2831 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lazarini, Françoise [VerfasserIn] |
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| Links: |
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| Themen: |
Guillain-Barré syndrome |
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| Anmerkungen: |
Date Completed 08.08.2022 Date Revised 09.11.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/ene.15444 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 100 | 1 | |a Lazarini, Françoise |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Olfactory outcomes in Zika virus-associated Guillain-Barré syndrome |
| 264 | 1 | |c 2022 | |
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| 500 | |a Date Revised 09.11.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2022 European Academy of Neurology. | ||
| 520 | |a BACKGROUND AND PURPOSE: Zika virus (ZIKV) infection has been associated with Guillain-Barré syndrome (GBS). However, little is known about the consequence of ZIKV infection on olfaction in humans | ||
| 520 | |a METHODS: Immediately before the COVID-19 outbreak, we prospectively investigated the olfactory capacities of 19 patients with ZIKV-associated GBS from the French West Indies and compared them to nine controls from the same population, with GBS of similar severity but independent of ZIKV infection. To provide further evidence that ZIKV infection induces smell alteration, we investigated the consequences of ZIKV infection on olfactory abilities using a mouse model | ||
| 520 | |a RESULTS: Patients with GBS-ZIKA+ had poorer olfactory function than GBS-non-ZIKA, even 1-2 years after the acute phase. The proportion of patients with hyposmia was significantly higher in the GBS-ZIKA+ than in the GBS-non-ZIKA group (68.4% vs. 22.2%, p = 0.042). These deficits were characterized by lower threshold and identification scores and were independent from GBS severity. Additionally, ZIKV infection was found to impair olfaction in immunodeficient mice infected with ZIKV. High viral load was observed in their olfactory system and downstream brain structures. ZIKV promoted both cellular damage in the olfactory neuroepithelium and protracted inflammation of the olfactory bulb, likely accounting for smell alteration | ||
| 520 | |a CONCLUSIONS: Patients with ZIKV-related GBS had poorer long-term olfactory function than patients with GBS-non-ZIKA, and ZIKV-infected mice are hyposmic. These observations suggest that ZIKV belongs on the list of viruses affecting the olfactory system. Clinical evaluation of the olfactory system should be considered for ZIKV-infected patients | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Guillain-Barré syndrome | |
| 650 | 4 | |a Zika | |
| 650 | 4 | |a hyposmia | |
| 650 | 4 | |a olfaction | |
| 650 | 4 | |a olfactory threshold | |
| 700 | 1 | |a Lannuzel, Annie |e verfasserin |4 aut | |
| 700 | 1 | |a Cabié, André |e verfasserin |4 aut | |
| 700 | 1 | |a Michel, Vincent |e verfasserin |4 aut | |
| 700 | 1 | |a Madec, Yoann |e verfasserin |4 aut | |
| 700 | 1 | |a Chaumont, Hugo |e verfasserin |4 aut | |
| 700 | 1 | |a Calmont, Isabelle |e verfasserin |4 aut | |
| 700 | 1 | |a Favrat, Mathilde |e verfasserin |4 aut | |
| 700 | 1 | |a Montagutelli, Xavier |e verfasserin |4 aut | |
| 700 | 1 | |a Roze, Emmanuel |e verfasserin |4 aut | |
| 700 | 1 | |a Lledo, Pierre-Marie |e verfasserin |4 aut | |
| 700 | 0 | |a ZikaSmell Working Group |e verfasserin |4 aut | |
| 700 | 1 | |a Abel, Sylvie |e investigator |4 oth | |
| 700 | 1 | |a Cabras, Ornella |e investigator |4 oth | |
| 700 | 1 | |a Marquise, Athéna |e investigator |4 oth | |
| 700 | 1 | |a Pircher, Mathilde |e investigator |4 oth | |
| 700 | 1 | |a Signate, Aïssatou |e investigator |4 oth | |
| 700 | 1 | |a Celeste, Christelle |e investigator |4 oth | |
| 700 | 1 | |a Lackmy, Angela |e investigator |4 oth | |
| 700 | 1 | |a Lepage, Guillaume |e investigator |4 oth | |
| 700 | 1 | |a Lobjois, Quentin |e investigator |4 oth | |
| 700 | 1 | |a Petit, Aimée |e investigator |4 oth | |
| 700 | 1 | |a Tressières, Benoît |e investigator |4 oth | |
| 700 | 1 | |a Teissier, Natacha |e investigator |4 oth | |
| 700 | 1 | |a Buivan, Tan-Phuc |e investigator |4 oth | |
| 700 | 1 | |a Conquet, Laurine |e investigator |4 oth | |
| 700 | 1 | |a Laude, Hélène |e investigator |4 oth | |
| 700 | 1 | |a Mottez, Estelle |e investigator |4 oth | |
| 700 | 1 | |a Taieb, Fabien |e investigator |4 oth | |
| 700 | 1 | |a Ungeheuer, Marie-Noëlle |e investigator |4 oth | |
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