Gingko biloba Extract Inhibits Oxidative Stress and Ameliorates Impaired Glial Fibrillary Acidic Protein Expression, but Can Not Improve Spatial Learning in Offspring from Hyperhomocysteinemic Rat Dams
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We aimed to study the effects of gingko biloba extract (EGb) on oxidative stress, astrocyte maturation and cognitive disfunction in offspring of hyperhomocysteinemic rats. Hyperhomocysteinemia was induced in the pregnant rats by administration of methionine (1?gr/kg body weight) dissolved in drinking water throughout pregnancy. One group of animals has received same amount of methionine plus 100?mg/kg/day EGb during pregnancy. On the postnatal day 1, half of the pups from all groups were sacrificed to study the lipid peroxidation (LPO) in different subfractions of brain. Other half of pups were tested in Morris water maze to assess differences in learning and memory performance at the 75?days of age. Maternal hyperhomocysteinemia significantly increased LPO levels especially in mitochondrial subfraction of fetal pup brains. EGb significantly prevented this LPO inrease. Methionine administration to animals reduced glial fibrillary acidic protein (GFAP) expression in pup brains significantly. EGb administration improved GFAP expression significantly. Offspring of hyperhomocysteinemic animals had poor long term spatial memory performance on Morris water maze and EGb administration had no effect on impaired spatial memory. In conclusion, maternally induced hyperhomocysteinemia significantly increased oxidative stress, decreased expression of GFAP and impaired learning performance. Copyright (c) 2011 John Wiley & Sons, Ltd.
Açıklama
Anahtar Kelimeler
Gingko biloba extract, prenatal hyperhomocysteinemia, oxidative stress, cognitive function, pup brain
Kaynak
Phytotherapy Research
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
26
Sayı
7
