Abstract:
:Neurological dysfunction as a result of neuroinflammation has been reported in sepsis and cause high mortality. High levels of cytokines stimulate the formation of neurotoxic metabolites by kynurenine (KYN) pathway. Vitamin B6 (vit B6) has anti-inflammatory and antioxidant properties and also acts as a cofactor for enzymes of the KYN pathway. Thus, by using a relevant animal model of polymicrobial sepsis, we studied the effect of vit B6 on the KYN pathway, acute neurochemical and neuroinflammatory parameters, and cognitive dysfunction in rats. Male Wistar rats (250-300 g) were submitted to cecal ligation and perforation (CLP) and divided into sham + saline, sham + vit B6, CLP + saline, and CLP + vit B6 (600 mg/kg, s.c.) groups. Twenty-four hours later, the prefrontal cortex and hippocampus were removed for neurochemical and neuroinflammatory analyses. Animals were followed for 10 days to determine survival rate, when cognitive function was assessed by behavioral tests. Vitamin B6 interfered in the activation of kynurenine pathway, which led to an improvement in neurochemical and neuroinflammatory parameters and, consequently, in the cognitive functions of septic animals. Thus, the results indicate that vit B6 exerts neuroprotective effects in acute and late consequences after sepsis.
journal_name
Mol Neurobioljournal_title
Molecular neurobiologyauthors
Danielski LG,Giustina AD,Goldim MP,Florentino D,Mathias K,Garbossa L,de Bona Schraiber R,Laurentino AOM,Goulart M,Michels M,de Queiroz KB,Kohlhof M,Rezin GT,Fortunato JJ,Quevedo J,Barichello T,Dal-Pizzol F,Coimbra RS,doi
10.1007/s12035-017-0706-0subject
Has Abstractpub_date
2018-06-01 00:00:00pages
5255-5268issue
6eissn
0893-7648issn
1559-1182pii
10.1007/s12035-017-0706-0journal_volume
55pub_type
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