title: [Effect of telmisartan and pyridoxamine on oxidative stress in brain tissue of spontaneously hypertensive rats].
abstract: OBJECTIVE
  To explore the effect of telmisartan and pyridoxamine on oxidative stress in brain tissue of spontaneously hypertensive rats.
  
  
  METHODS
  Twenty-four spontaneously hypertensive rats were randomly divided into four groups (n = 6): hypertensive control group (HC group), telmisartan group (T group ), pyridoxamine group (P group ), telmisartan and pyridoxamine group (TP group). Wistar-Kyoto (WKY) rats of the same age were served as a normal control group (NC group). Drug treatment lasted for 16 weeks the level of hyde (MDA) in rat brain tissue, as well as superoxide dismutase (SOD) activity and nicotinamide adenine dinucleotide phosphate(NADHP) oxidase p47phox mRNA expression were observed in this study.
  
  
  RESULTS
  The MDA level in brain in HC group were higher than that in NC group and the SOD activity were lower (P < 0.05). T group, P group and TP group had lower MDA level and higher SOD activity than HC group (P < 0.05). The NADPH mRNA in brain in HC group were significantly higher than that in NC group (P < 0.01). T group and TP group had decreased levels of NADPH mRNA (P < 0.01), there was no significant difference between HC group and P group (P > 0.05).
  
  
  CONCLUSIONS
  The brain tissue of spontaneous hypertensive rats had been under the status of oxidative stress. Single application of either telmisartan or pyridoxamine could inhibit oxidative stress of brain tissue. However, compare with single treatment of telmisartan, no beneficial effects were observed in combined use of telmisartan and pyridoxamine.
authors.affiliation: Geriatrics Department of Fujian Provincial Hospital, Fuzhou 350001, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Huang
authors.forename: Peng-Li
authors.initials: PL
authors.lastname: Zhu
authors.forename: Fan
authors.initials: F
authors.lastname: Lin
authors.forename: Hong
authors.initials: H
authors.lastname: Lin
mesh_terms: D000818:Animals; D001562:Benzimidazoles / Q000494:pharmacology* / Q000627:therapeutic use; D001565:Benzoates / Q000494:pharmacology* / Q000627:therapeutic use; D001921:Brain / Q000187:drug effects* / Q000378:metabolism; D006973:Hypertension / Q000188:drug therapy / Q000378:metabolism*; D008297:Male; D019255:NADPH Oxidases / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects*; D011733:Pyridoxamine / Q000494:pharmacology* / Q000627:therapeutic use; D051381:Rats; D011918:Rats, Inbred SHR; D011921:Rats, Inbred WKY; D013482:Superoxide Dismutase / Q000378:metabolism; D000077333:Telmisartan
chemical_list: D001562:Benzimidazoles; D001565:Benzoates; D011733:Pyridoxamine; D013482:Superoxide Dismutase; D019255:NADPH Oxidases; C060505:neutrophil cytosolic factor 1; D000077333:Telmisartan