Linked Life Data

3015634

Source:http://linkedlifedata.com/resource/pubmed/id/3015634

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1986-9-25
pubmed:abstractText
To test the hypothesis that the resistance of sickle trait (AS Hgb) erythrocytes (rbcs) to malaria may be mediated by increased production of activated oxygen species, the production of superoxide anion (O2-) and hydrogen peroxide (H2O2) by AS rbcs and normal (AA Hgb) rbcs was measured under defined conditions. Formation of O2- and H2O2 was time, temperature and oxygen saturation dependent. Reproducible measurement of O2- formation required the presence of 0.2 mmol l-1 KCN to inhibit a cytochrome oxidase activity found in the cytochrome C preparation used. There was an inverse relationship between cell concentration and O2- and H2O2 formation. Use of the inhibitor of superoxide dismutase (SOD), diethyldithiocarbamic acid, increased the amount of O2- measured. When rbcs from blacks with AS Hgb and with AA Hgb were incubated under standardized conditions, significantly (P less than 0.05) more O2- was formed by AS than AA cells (24.3 v. 14.5 mmol per mol Hgb). These findings show that AS rbcs can generate more O2- than AA rbcs. The increased formation of O2- by rbcs containing AS Hgb may contribute to the resistance of AS rbcs to malarial parasitism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0014-2972
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
204-10
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Generation of superoxide anion and hydrogen peroxide by erythrocytes from individuals with sickle trait or normal haemoglobin.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, Non-P.H.S.