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A bipolar disorder patient becoming asymptomatic after adjunctive anti-filiarasis treatment: a case report.

Abstract : BACKGROUND: Evidence suggests that neurotropic infectious agents might be involved in bipolar disorder. So far, few have been written for the association between parasitic infection and bipolar disorder. Filariasis is a parasitic disease acting ruthlessly via mosquitos and affecting more than 120 million people worldwide. We present here, to our knowledge, the first description of a filariasis infected manic bipolar disorder patient fully improved in terms of psychiatric symptoms by anti-heminthic treatment. CASE PRESENTATION: The patient is a 31 years-old man native of Congo who presented a severe manic episode with dangerous behaviour unresolved by classic treatments. A diagnosis of filariasis bancrofti infection was made after the discovery of a systemic hypereosinophilia. Therefore, a bi-therapy of anthelmintics was conducted allowing a successful improvement with clear reduction of agitation and aggressive behaviors that could not be attributed to a modification of psychotropic treatments or filarial encephalopathy or acute disseminated encephalomyelitis. CONCLUSION: The ineffectiveness of psychotropic treatment of a manic episode requires the evaluation of co-morbid medical conditions such as infections which can interfere with adequate mood stabilizing medication. Filariasis by inducing chronic inflammation and immunopathologic reactions seems to play a major role in infected affective disorders patients by changing levels of cytokines of the Th1 system or indirectly damaging the brain tissue. The beneficial combination of antihelmintics and mood stabilizers, in this case, could be explained by the potential of such association to downregulate neuroinflammation and excitotoxicity processes.Altogether, these data pinpoint the requirement to explore the parasitic infectious status in case of bipolar disorder patients resistant to classic treatments and originating or living in endemic geographical areas.
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Submitted on : Thursday, April 11, 2013 - 5:03:32 PM
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Nora Hamdani, Raphaël Doukhan, Aline Picard, Ryad Tamouza, Marion Leboyer. A bipolar disorder patient becoming asymptomatic after adjunctive anti-filiarasis treatment: a case report.. BMC Psychiatry, BioMed Central, 2013, 13 (1), pp.81. ⟨10.1186/1471-244X-13-81⟩. ⟨inserm-00812148⟩



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