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001-es BibID:	BIBFORM002210
Első szerző:	Moro, Cécile
Cím:	Delayed expression of cytokines after reperfused myocardial infarction : possible trigger for cardiac dysfunction and ventricular remodeling / Cécile Moro, Marie-Gabrielle Jouan, Andry Rakotovao, Marie-Claire Toufektsian, Olivier Ormezzano, Norbert Nagy, Arpad Tosaki, Joel de Leiris, Francois Boucher
Dátum:	2007
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	American Journal of Physiology, Heart and Circulation Physiology 293 : 5 (2007), p. H3014-H3019. -
További szerzők:	Jouan, Marie-Gabrielle Rakotovao, Andry Toufektsian, Marie-Claire Ormezzano, Olivier Nagy Norbert (1977-) (kísérletes farmakológus) Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) de Leiris, Joel Boucher, Francois
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001-es BibID:	BIBFORM041717
035-os BibID:	PMID:16240671
Első szerző:	Rakotovao, Andry
Cím:	Selenium status as determinant of connexin-43 dephosphorylation in ex vivo ischemic/reperfused rat myocardium / Andry Rakotovao, Stéphane Tanguy, Marie-Claire Toufektsian, Corinne Berthonneche, Véronique Ducros, Arpad Tosaki, Joël de Leiris, François Boucher
Dátum:	2005
Megjegyzések:	Recent studies have demonstrated that electrical uncoupling at gap junctions during ischemia is associated with cardiac Connexin-43 (Cx43) dephosphorylation. Whether oxidative stress is involved in this phenomenon still remains unclear. In the present study, we examined the influence of selenium intake on reperfusion-induced Cx43 dephosphorylation. Male Wistar rats were fed a diet containing either 0.05 mg/kg (Low-Se, n = 13) or 1.5 mg/kg (High-Se, n = 11) selenium for 8 weeks. At the end of this diet, hearts were isolated and subjected to 10 min regional ischemia followed by 10 min reperfusion. The level of dephosphorylated Cx43 was determined in tissue samples from ischemic/reperfused and non-ischemic regions of the hearts. At the end of the experiemental diet, the activity of the antioxidant enzyme glutathione peroxidase (GSH-Px) was increased in high-Se hearts compared with low-Se hearts (+ 13%; p < 0.05). After ischemia/reperfusion, in low-Se hearts, Cx43 dephosphorylation appeared significantly increased in the left ventricle compared to the non-ischemic right ventricle (+ 149%; p < 0.05). The high-Se diet significantly reduced Cx43 dephosphorylation in the left ventricle (p < 0.05 vs. low-Se diet). In conclusion, our results suggest that oxidative stress may be involved in Cx43 dephosphorylation during myocardial ischemia/reperfusion, thereby contributing to arrhythmogenesis.
Tárgyszavak:	Orvostudományok Gyógyszerészeti tudományok idegen nyelvű folyóiratközlemény külföldi lapban külföldön készült közlemény
Megjelenés:	Journal of Trace Elements in Medicine and Biology 19 : 1 (2005), p. 43-47. -
További szerzők:	Tanguy, Stéphane Toufektsian, Marie-Claire Berthonneche, Corinne Ducros, Véronique Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész) de Leiris, Joel Boucher, Francois
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001-es BibID:	BIBFORM027570
Első szerző:	Szabó Márta E.
Cím:	Heme oxygenase-1-related carbon monoxide and flavonoids in ischemic/reperfused rat retina / Marta E. Szabo, Eva Gallyas, Istvan Bak, Andry Rakotovao, Francois Boucher, Joel de Leiris, Norbert Nagy, Edit Varga, Arpad Tosaki
Dátum:	2004
ISSN:	0146-0404
Megjegyzések:	purpose. There is increasing evidence to show cytoprotective effects of various flavonoid-rich extracts and the tissue-protective capacity of flavonoid-rich extract of sour cherry is due to flavonoid components of seeds. Sour cherry seed flavonoids were evaluated for their contribution to postischemic recovery related to endogenous carbon monoxide (CO) production in rat retinas subjected to ischemia/reperfusion. methods. Rats were orally treated with selected doses of flavonoid-rich extract of sour cherry seeds for 2 weeks. Animals were anesthetized, and a suture was placed behind the globe including the central retinal artery. Next, retinas were subjected to 90 minutes of ischemia followed by 24 hours of reperfusion. After this procedure, heme oxygenase-1 (HO-1)-related protein expression and enzyme activity, HO-1-related endogenous CO production, and ionic imbalance including tissue Na+, K+, and Ca2+ in untreated and treated ischemic/reperfused retinas were measured. results. Retinal ischemia/reperfusion resulted in a significant reduction (to 10%) in HO-1 protein expression, enzyme activity, and HO-1-related endogenous CO production in the retina. These changes were accompanied by increases in retinal Na+ and Ca2+ gains and loss of K+. In rats treated with 10 and 30 mg/kg of sour cherry flavonoid-rich extract, after 24 hours of reperfusion, tissue Na+ and Ca2+ accumulation and K+ loss were prevented in comparison with the drug-free control. conclusions. Sour cherry seed flavonoid-rich extract showed a protective effect against reperfusion-induced injury through its ability to reduce the changes in concentrations of retinal ions through HO-1-related endogenous CO production in the ischemic/reperfused retina.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban egyetemen (Magyarországon) készült közlemény
Megjelenés:	Investigative Ophthalmology & Visual Science 45 : 10 (2004), p. 3727-3732. -
További szerzők:	Gallyas Éva Bak István (1975-) (vegyész, analitikus, farmakológus) Rakotovao, Andry Boucher, Francois de Leiris, Joel Nagy Norbert (1977-) (kísérletes farmakológus) Varga Edit (gyógyszerész) Tósaki Árpád (1958-) (kísérletes farmakológus, gyógyszerész)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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