Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Jornal de Pediatria (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0021-75572014000200286 |
Resumo: | OBJECTIVE:the present study was conducted to investigate the oxidant-antioxidant status in Egyptian children with sickle cell anemia.METHODS:the serum levels of total antioxidant capacity (TAO), paraoxonase (PON), vitamin E, nitrite, and malondialdehyde (MDA) were measured in 40 steady state children with homozygous sickle cell anemia (24 males and 16 females) and 20 apparently healthy age- and gender-matched controls.RESULTS:mean serum TAO, PON, vitamin E, and nitrite levels were significantly lower in the group with sickle cell anemia, whereas mean serum MDA was significantly higher in these children compared to controls. No significant differences in mean levels of TAO, PON, nitrite, vitamin E, and MDA were found in sickle cell anemia patients receiving hydroxyurea when compared with those not receiving hydroxyurea. A significant negative correlation between serum nitrite and the occurrence of vaso-occlusive crises (VOC) was observed (r = -0.3, p = 0.04). PON level was found to be positively correlated with patients' weight and BMI (r = -0.4, p = 0.01; r = -0.7, p < 0.001, respectively), but not with frequency of VOC. The area under the curve of serum nitrite in predicting occurrence of VOC was 0.782, versus 0.701 for PON, and 0.650 for TAO (p = 0.006). Serum MDA was not correlated with nitrite, PON, TAO, or vitamin E levels. No significant correlations were detected between serum nitrite and hemoglobin or antioxidant enzymes.CONCLUSION:children with sickle cell anemia have chronic oxidative stress that may result in increased VOC, and decreased serum nitrite may be associated with increases in VOC frequency. A novel finding in this study is the decrease in PON level in these patients, which is an interesting subject for further research. |
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Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based studyAntioxidantsNitriteParaoxonaseMalondialdehydeSickle cell anemiaChildrenOBJECTIVE:the present study was conducted to investigate the oxidant-antioxidant status in Egyptian children with sickle cell anemia.METHODS:the serum levels of total antioxidant capacity (TAO), paraoxonase (PON), vitamin E, nitrite, and malondialdehyde (MDA) were measured in 40 steady state children with homozygous sickle cell anemia (24 males and 16 females) and 20 apparently healthy age- and gender-matched controls.RESULTS:mean serum TAO, PON, vitamin E, and nitrite levels were significantly lower in the group with sickle cell anemia, whereas mean serum MDA was significantly higher in these children compared to controls. No significant differences in mean levels of TAO, PON, nitrite, vitamin E, and MDA were found in sickle cell anemia patients receiving hydroxyurea when compared with those not receiving hydroxyurea. A significant negative correlation between serum nitrite and the occurrence of vaso-occlusive crises (VOC) was observed (r = -0.3, p = 0.04). PON level was found to be positively correlated with patients' weight and BMI (r = -0.4, p = 0.01; r = -0.7, p < 0.001, respectively), but not with frequency of VOC. The area under the curve of serum nitrite in predicting occurrence of VOC was 0.782, versus 0.701 for PON, and 0.650 for TAO (p = 0.006). Serum MDA was not correlated with nitrite, PON, TAO, or vitamin E levels. No significant correlations were detected between serum nitrite and hemoglobin or antioxidant enzymes.CONCLUSION:children with sickle cell anemia have chronic oxidative stress that may result in increased VOC, and decreased serum nitrite may be associated with increases in VOC frequency. A novel finding in this study is the decrease in PON level in these patients, which is an interesting subject for further research.Sociedade Brasileira de Pediatria2014-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0021-75572014000200286Jornal de Pediatria v.90 n.2 2014reponame:Jornal de Pediatria (Online)instname:Sociedade Brasileira de Pediatria (SBP)instacron:SBPE10.1016/j.jped.2013.09.005info:eu-repo/semantics/openAccessEl-Ghamrawy,Mona KamalHanna,Wagdi MauriceAbdel-Salam,AminaEl-Sonbaty,Marwa M.Youness,Eman R.Adel,Ahmedeng2015-09-01T00:00:00Zoai:scielo:S0021-75572014000200286Revistahttp://www.jped.com.br/https://old.scielo.br/oai/scielo-oai.php||jped@jped.com.br1678-47820021-7557opendoar:2015-09-01T00:00Jornal de Pediatria (Online) - Sociedade Brasileira de Pediatria (SBP)false |
dc.title.none.fl_str_mv |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study |
title |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study |
spellingShingle |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study El-Ghamrawy,Mona Kamal Antioxidants Nitrite Paraoxonase Malondialdehyde Sickle cell anemia Children |
title_short |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study |
title_full |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study |
title_fullStr |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study |
title_full_unstemmed |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study |
title_sort |
Oxidant-antioxidant status in Egyptian children with sickle cell anemia: a single center based study |
author |
El-Ghamrawy,Mona Kamal |
author_facet |
El-Ghamrawy,Mona Kamal Hanna,Wagdi Maurice Abdel-Salam,Amina El-Sonbaty,Marwa M. Youness,Eman R. Adel,Ahmed |
author_role |
author |
author2 |
Hanna,Wagdi Maurice Abdel-Salam,Amina El-Sonbaty,Marwa M. Youness,Eman R. Adel,Ahmed |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
El-Ghamrawy,Mona Kamal Hanna,Wagdi Maurice Abdel-Salam,Amina El-Sonbaty,Marwa M. Youness,Eman R. Adel,Ahmed |
dc.subject.por.fl_str_mv |
Antioxidants Nitrite Paraoxonase Malondialdehyde Sickle cell anemia Children |
topic |
Antioxidants Nitrite Paraoxonase Malondialdehyde Sickle cell anemia Children |
description |
OBJECTIVE:the present study was conducted to investigate the oxidant-antioxidant status in Egyptian children with sickle cell anemia.METHODS:the serum levels of total antioxidant capacity (TAO), paraoxonase (PON), vitamin E, nitrite, and malondialdehyde (MDA) were measured in 40 steady state children with homozygous sickle cell anemia (24 males and 16 females) and 20 apparently healthy age- and gender-matched controls.RESULTS:mean serum TAO, PON, vitamin E, and nitrite levels were significantly lower in the group with sickle cell anemia, whereas mean serum MDA was significantly higher in these children compared to controls. No significant differences in mean levels of TAO, PON, nitrite, vitamin E, and MDA were found in sickle cell anemia patients receiving hydroxyurea when compared with those not receiving hydroxyurea. A significant negative correlation between serum nitrite and the occurrence of vaso-occlusive crises (VOC) was observed (r = -0.3, p = 0.04). PON level was found to be positively correlated with patients' weight and BMI (r = -0.4, p = 0.01; r = -0.7, p < 0.001, respectively), but not with frequency of VOC. The area under the curve of serum nitrite in predicting occurrence of VOC was 0.782, versus 0.701 for PON, and 0.650 for TAO (p = 0.006). Serum MDA was not correlated with nitrite, PON, TAO, or vitamin E levels. No significant correlations were detected between serum nitrite and hemoglobin or antioxidant enzymes.CONCLUSION:children with sickle cell anemia have chronic oxidative stress that may result in increased VOC, and decreased serum nitrite may be associated with increases in VOC frequency. A novel finding in this study is the decrease in PON level in these patients, which is an interesting subject for further research. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0021-75572014000200286 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0021-75572014000200286 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1016/j.jped.2013.09.005 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Pediatria |
publisher.none.fl_str_mv |
Sociedade Brasileira de Pediatria |
dc.source.none.fl_str_mv |
Jornal de Pediatria v.90 n.2 2014 reponame:Jornal de Pediatria (Online) instname:Sociedade Brasileira de Pediatria (SBP) instacron:SBPE |
instname_str |
Sociedade Brasileira de Pediatria (SBP) |
instacron_str |
SBPE |
institution |
SBPE |
reponame_str |
Jornal de Pediatria (Online) |
collection |
Jornal de Pediatria (Online) |
repository.name.fl_str_mv |
Jornal de Pediatria (Online) - Sociedade Brasileira de Pediatria (SBP) |
repository.mail.fl_str_mv |
||jped@jped.com.br |
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1752122319913877504 |