Oxidative stress is closely related to clinical severity of pre-eclampsia
Pre-eclampsia is a hypertensive disorder of pregnancy in which enzymatic antioxidant defenses fail and tissues are injured. This prospective case-control study evaluated whether pre-eclamptic women and their newborns show higher degrees of oxidative stress than normal pregnancies and sought to deter...
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| Language: | English |
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BMC
2006-01-01
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| Series: | Biological Research |
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| Online Access: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200005 |
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| author | VERÓNICA M CHAMY JAIME LEPE ÁLVARO CATALÁN DAVID RETAMAL JORGE A ESCOBAR EVA M MADRID |
| author_facet | VERÓNICA M CHAMY JAIME LEPE ÁLVARO CATALÁN DAVID RETAMAL JORGE A ESCOBAR EVA M MADRID |
| author_sort | VERÓNICA M CHAMY |
| collection | DOAJ |
| description | Pre-eclampsia is a hypertensive disorder of pregnancy in which enzymatic antioxidant defenses fail and tissues are injured. This prospective case-control study evaluated whether pre-eclamptic women and their newborns show higher degrees of oxidative stress than normal pregnancies and sought to determine if this stress is related to clinical severity. Forty-four pre-eclamptic and thirty healthy pregnant women attending two hospitals in Valparaíso, Chile, were studied. The following plasmatic variables of antioxidant capacity were evaluated: glutathione peroxidase activity (GPx), total antioxidant capacity measured by oxidation of ABTS substrate (2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid), and superoxide dismutase activity (SOD). malondialdehide (MDA) was measured to evaluate lipoperoxidation. The evaluation was performed at diagnosis of pre-eclampsia, delivery, 30 days and 120 days post delivery. Newborns were studied at delivery through umbilical cord blood samples. Our analysis shows that antioxidant enzyme activity (SOD, GPx, ABTS) was significantly decreased, while lipoperoxidation (MDA) was increased in both pre-eclamptic groups compared to normal pregnant women (p<0.01). Statistically significant difference was found between mild and severe pre-eclamptic groups (p<0.01), for all biochemical markers studied. Therefore, the clinical severity of this pathology is closely related to the degree of oxidative stress |
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| issn | 0716-9760 0717-6287 |
| language | English |
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| publishDate | 2006-01-01 |
| publisher | BMC |
| record_format | Article |
| series | Biological Research |
| spelling | doaj.art-2e9fdc4f802c4d2181a8e27d00b11da12022-12-22T01:53:09ZengBMCBiological Research0716-97600717-62872006-01-01392229236Oxidative stress is closely related to clinical severity of pre-eclampsiaVERÓNICA M CHAMYJAIME LEPEÁLVARO CATALÁNDAVID RETAMALJORGE A ESCOBAREVA M MADRIDPre-eclampsia is a hypertensive disorder of pregnancy in which enzymatic antioxidant defenses fail and tissues are injured. This prospective case-control study evaluated whether pre-eclamptic women and their newborns show higher degrees of oxidative stress than normal pregnancies and sought to determine if this stress is related to clinical severity. Forty-four pre-eclamptic and thirty healthy pregnant women attending two hospitals in Valparaíso, Chile, were studied. The following plasmatic variables of antioxidant capacity were evaluated: glutathione peroxidase activity (GPx), total antioxidant capacity measured by oxidation of ABTS substrate (2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid), and superoxide dismutase activity (SOD). malondialdehide (MDA) was measured to evaluate lipoperoxidation. The evaluation was performed at diagnosis of pre-eclampsia, delivery, 30 days and 120 days post delivery. Newborns were studied at delivery through umbilical cord blood samples. Our analysis shows that antioxidant enzyme activity (SOD, GPx, ABTS) was significantly decreased, while lipoperoxidation (MDA) was increased in both pre-eclamptic groups compared to normal pregnant women (p<0.01). Statistically significant difference was found between mild and severe pre-eclamptic groups (p<0.01), for all biochemical markers studied. Therefore, the clinical severity of this pathology is closely related to the degree of oxidative stresshttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200005pre-eclampsiaMDASODGPxABTSlipoperoxidationantioxidants |
| spellingShingle | VERÓNICA M CHAMY JAIME LEPE ÁLVARO CATALÁN DAVID RETAMAL JORGE A ESCOBAR EVA M MADRID Oxidative stress is closely related to clinical severity of pre-eclampsia Biological Research pre-eclampsia MDA SOD GPx ABTS lipoperoxidation antioxidants |
| title | Oxidative stress is closely related to clinical severity of pre-eclampsia |
| title_full | Oxidative stress is closely related to clinical severity of pre-eclampsia |
| title_fullStr | Oxidative stress is closely related to clinical severity of pre-eclampsia |
| title_full_unstemmed | Oxidative stress is closely related to clinical severity of pre-eclampsia |
| title_short | Oxidative stress is closely related to clinical severity of pre-eclampsia |
| title_sort | oxidative stress is closely related to clinical severity of pre eclampsia |
| topic | pre-eclampsia MDA SOD GPx ABTS lipoperoxidation antioxidants |
| url | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200005 |
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