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Original Articles

Deferoxamine prevents cerebral glutathione and vitamin E depletions in asphyxiated neonatal rats: role of body temperature

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Pages 211-220 | Received 25 Aug 2015, Accepted 24 Nov 2015, Published online: 21 Jan 2016

Figures & data

Figure 1. Experimental protocol. Control rats were exposed to atmospheric air throughout the same period under respective thermal conditions. Abbreviations: s - stabilisation period; r - reoxygenation period;

DF or saline injection; mh - continued maternal housing; PD - postnatal day;
analysis of oxidative stress.

Figure 1. Experimental protocol. Control rats were exposed to atmospheric air throughout the same period under respective thermal conditions. Abbreviations: s - stabilisation period; r - reoxygenation period; Display full size DF or saline injection; mh - continued maternal housing; PD - postnatal day; Display full size analysis of oxidative stress.

Figure 2. Effects of neonatal anoxia, neonatal body temperature (33 °C, 37 °C and 39 °C) and chelation of iron with deferoxamine (DF) on cerebral concentration of malondialdehyde (MDA) in newborn rats immediately (panel A), 3 (panel B), 7 (panel C) and 14 (panel D) days after exposure to anoxia or to control conditions. Data are presented as means ± SEM. Statistically significant differences between anoxic animals and their control counterparts at the same body temperatures are denoted: #p < 0.05 and ###p < 0.001; and those between the temperature variants of control or anoxic animals are denoted: **p < 0.01 and ***p < 0.001. Statistically significant differences between rats forced to maintain neonatal body temperature of 39 °C injected with saline and their counterparts injected with deferoxamine are denoted: ^^p < 0.01 and ^^^p < 0.001.

Figure 2. Effects of neonatal anoxia, neonatal body temperature (33 °C, 37 °C and 39 °C) and chelation of iron with deferoxamine (DF) on cerebral concentration of malondialdehyde (MDA) in newborn rats immediately (panel A), 3 (panel B), 7 (panel C) and 14 (panel D) days after exposure to anoxia or to control conditions. Data are presented as means ± SEM. Statistically significant differences between anoxic animals and their control counterparts at the same body temperatures are denoted: #p < 0.05 and ###p < 0.001; and those between the temperature variants of control or anoxic animals are denoted: **p < 0.01 and ***p < 0.001. Statistically significant differences between rats forced to maintain neonatal body temperature of 39 °C injected with saline and their counterparts injected with deferoxamine are denoted: ^^p < 0.01 and ^^^p < 0.001.

Figure 3. Effects of neonatal anoxia, neonatal body temperature (33 °C, 37 °C and 39 °C) and chelation of iron with deferoxamine (DF) on cerebral concentration of glutathione (GSH) in newborn rats immediately (panel A), 3 (panel B), 7 (panel C) and 14 (panel D) days after exposure to anoxia or to control conditions. Data are presented as means ± SEM. Statistically significant differences between anoxic animals and their control counterparts at the same body temperatures are denoted: #p < 0.05, ##p < 0.01 and ###p < 0.001; and those between the temperature variants of control or anoxic animals are denoted: *p < 0.05 and ***p < 0.001. Statistically significant differences between rats forced to maintain neonatal body temperature of 39  °C injected with saline and their counterparts injected with deferoxamine are denoted: ^p < 0.05 and ^^^p < 0.001.

Figure 3. Effects of neonatal anoxia, neonatal body temperature (33 °C, 37 °C and 39 °C) and chelation of iron with deferoxamine (DF) on cerebral concentration of glutathione (GSH) in newborn rats immediately (panel A), 3 (panel B), 7 (panel C) and 14 (panel D) days after exposure to anoxia or to control conditions. Data are presented as means ± SEM. Statistically significant differences between anoxic animals and their control counterparts at the same body temperatures are denoted: #p < 0.05, ##p < 0.01 and ###p < 0.001; and those between the temperature variants of control or anoxic animals are denoted: *p < 0.05 and ***p < 0.001. Statistically significant differences between rats forced to maintain neonatal body temperature of 39  °C injected with saline and their counterparts injected with deferoxamine are denoted: ^p < 0.05 and ^^^p < 0.001.

Figure 4. Effects of neonatal anoxia, neonatal body temperature (33 °C, 37 °C and 39 °C) and chelation of iron with deferoxamine (DF) on cerebral concentration of vitamin E in newborn rats immediately (panel A), 3 (panel B), 7 (panel C) and 14 (panel D) days after exposure to anoxia or to control conditions. Data are presented as means ± SEM. Statistically significant differences between anoxic animals and their control counterparts at the same body temperatures are denoted: #p < 0.05 and ###p < 0.001; and those between the temperature variants of control or anoxic animals are denoted: *p < 0.05,**p < 0.01 and ***p < 0.001. Statistically significant differences between rats forced to maintain neonatal body temperature of 39  °C injected with saline and their counterparts injected with deferoxamine are denoted: ^p < 0.05 and ^^p < 0.01.

Figure 4. Effects of neonatal anoxia, neonatal body temperature (33 °C, 37 °C and 39 °C) and chelation of iron with deferoxamine (DF) on cerebral concentration of vitamin E in newborn rats immediately (panel A), 3 (panel B), 7 (panel C) and 14 (panel D) days after exposure to anoxia or to control conditions. Data are presented as means ± SEM. Statistically significant differences between anoxic animals and their control counterparts at the same body temperatures are denoted: #p < 0.05 and ###p < 0.001; and those between the temperature variants of control or anoxic animals are denoted: *p < 0.05,**p < 0.01 and ***p < 0.001. Statistically significant differences between rats forced to maintain neonatal body temperature of 39  °C injected with saline and their counterparts injected with deferoxamine are denoted: ^p < 0.05 and ^^p < 0.01.

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