Linked Life Data

9488364

Source:http://linkedlifedata.com/resource/pubmed/id/9488364

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1998-3-5
pubmed:abstractText
An improved semiquantitative technique was developed for measuring low infectious doses of Cryptosporidium parvum in neonatal mice using polymerase chain reaction (PCR). Separate litters of neonatal mice were inoculated with 0, 10(2), 10(3), or 10(4) C. parvum oocysts and killed 96 hr postinfection. A segment of the ileum or the entire whole intestine was then removed from subgroups of mice in each litter and total DNA was extracted using standard procedures. By employing a CP15/60-based semiquantitative PCR technique, C. parvum DNA was detected in mice infected with as few as 10(2) oocysts. DNA isolated from the ileum of infected mice produced a more intense PCR signal than DNA isolated from the whole intestine. This technique was used to study the intracellular development of C. parvum sporozoites that had been exposed in the oocyst stage to either 0, 15, 20, 25, or 30 kRad gamma-irradiation. A CP15/60 PCR signal was observed in ileum tissue from mice infected with 0-kRad- or 15-kRad-irradiated C. parvum oocysts. A very slight PCR signal was generated by PCR on ileum tissue DNA from mice infected with 20-kRad-irradiated oocysts, whereas no signal was observed in PCR on intestinal DNA from mice infected with oocysts exposed to higher radiation doses.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-3395
pubmed:author
pubmed:issnType
Print
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
182-6
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Development and application of an improved semiquantitative technique for detecting low-level Cryptosporidium parvum infections in mouse tissue using polymerase chain reaction.
pubmed:affiliation
Immunology and Disease Resistance Laboratory, Agricultural Research Service, USDA, Beltsville, Maryland 20705, USA.
pubmed:publicationType
Journal Article