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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1982-1-28
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pubmed:abstractText |
During the routine examination of a healthy 31-yr-old woman, we found an incomplete deficiency of the 9th component of complement (C9). By hemolytic assay her serum C9 activity was 10 to 15% of normal. Limited family studies suggested that she inherited the deficiency as an autosomal codominant trait. She had no history of unusual or severe infections. When tested for bactericidal activity against serum-sensitive Neisseria gonorrhoeae and N. meningitidis, her serum reacted comparably to normal serum. Normal serum depleted immunochemically of C9 and sera from congenitally C9-deficient patients were also bactericidal against serum-sensitive Neisseria but required 120 min to kill the same numbers of gonococci that intact serum killed within 30 min. In the electron microscope, N. gonorrhoeae incubated with C9-depleted serum were fragmented but lacked the typical C lesions. Therefore, serum lacking C9 can kill serum-sensitive Neisseria, unlike sera deficient in the other terminal C components.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
127
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2386-90
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pubmed:dateRevised |
2009-11-3
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pubmed:meshHeading |
pubmed-meshheading:6795273-Adult,
pubmed-meshheading:6795273-Blood Bactericidal Activity,
pubmed-meshheading:6795273-Complement C9,
pubmed-meshheading:6795273-Complement System Proteins,
pubmed-meshheading:6795273-Cytotoxicity, Immunologic,
pubmed-meshheading:6795273-Female,
pubmed-meshheading:6795273-Hemolysis,
pubmed-meshheading:6795273-Hemolytic Plaque Technique,
pubmed-meshheading:6795273-Humans,
pubmed-meshheading:6795273-Immunodiffusion,
pubmed-meshheading:6795273-Immunosorbents,
pubmed-meshheading:6795273-Neisseria,
pubmed-meshheading:6795273-Neisseria gonorrhoeae
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pubmed:year |
1981
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pubmed:articleTitle |
The role of C9 in complement-mediated killing of Neisseria.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Case Reports,
Research Support, Non-U.S. Gov't
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