title: Complete blood count and acetylcholinesterase activity of lymphocytes of demyelinated and ovariectomized rats treated with resveratrol.
abstract: Resveratrol is a phytoestrogen that has many beneficial actions. This study aimed to evaluate the effect of resveratrol on the complete blood count (CBC) and the acetylcholinesterase (AChE) activity of lymphocytes of ovariectomized rats experimentally demyelinated by ethidium bromide (EB). Forty adult female Wistar rats (60 days, 200-220 g) were divided randomly into five groups (n = 4) to evaluate the demyelination phase and five groups (n = 4) to evaluate the remyelination phase. In each phase, the groups consisted of sham rats-G1; ovariectomized rats, not demyelinated, treated only with vehicle (ethanol 25%)-G2; demyelinated ovariectomized rats treated only with vehicle-G3; ovariectomized rats, not demyelinated, treated with resveratrol-G4; and demyelinated ovariectomized rats treated with resveratrol-G5. Only during the remyelination phase, CBC showed a significant difference (p < 0.05) in the number of monocytes between G2 and G5 groups. In the demyelination phase, there was a significant decrease (p < 0.05) in the AChE activity in the G4 group, while the G5 group was statistically similar to the G1, G2 and G4 groups. In the remyelination phase, there were no significant differences in the AChE activity among the groups. The treatment for 7 days with resveratrol with or without the experimental demyelization with EB appears to influence the AChE activity of lymphocytes, without changing the number of these cells in the circulation. However, in the remyelination phase, there seems to be stabilization in its effect on the lymphocyte AChE activity.
authors.affiliation: Departamento de Clínica de Pequenos Animais, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil. vetdanielimartins@yahoo.com.br
authors.forename: Danieli B
authors.initials: DB
authors.lastname: Martins
authors.forename: Cinthia M
authors.initials: CM
authors.lastname: Mazzanti
authors.forename: Márcio M
authors.initials: MM
authors.lastname: Costa
authors.forename: Raqueli
authors.initials: R
authors.lastname: França
authors.forename: Marcielen
authors.initials: M
authors.lastname: Pagnoncelli
authors.forename: Roberto M
authors.initials: RM
authors.lastname: Maciel
authors.forename: Roberta
authors.initials: R
authors.lastname: Schmatz
authors.forename: Lizielle
authors.initials: L
authors.lastname: Oliveira
authors.forename: Vera
authors.initials: V
authors.lastname: Morsch
authors.forename: Grasiela
authors.initials: G
authors.lastname: Facco
authors.forename: Diandra
authors.initials: D
authors.lastname: Visentini
authors.forename: Thais
authors.initials: T
authors.lastname: Mann
authors.forename: Alexandre
authors.initials: A
authors.lastname: Mazzanti
authors.forename: Sonia T A
authors.initials: ST
authors.lastname: Lopes
mesh_terms: D000110:Acetylcholinesterase / Q000097:blood*; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology*; D001772:Blood Cell Count; D003711:Demyelinating Diseases / Q000097:blood* / Q000139:chemically induced / Q000473:pathology; D004791:Enzyme Inhibitors / Q000009:adverse effects / Q000494:pharmacology; D004996:Ethidium / Q000009:adverse effects / Q000494:pharmacology; D005260:Female; D008214:Lymphocytes / Q000201:enzymology* / Q000473:pathology; D010052:Ovariectomy; D051381:Rats; D017208:Rats, Wistar; D000077185:Resveratrol; D013267:Stilbenes / Q000494:pharmacology*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D004791:Enzyme Inhibitors; D013267:Stilbenes; D000110:Acetylcholinesterase; D004996:Ethidium; D000077185:Resveratrol