Evidence map›Paper›PMID 11959566›Full record

ArticleAntimicrobial agents and chemotherapy2002

Effects of specific antibodies against Streptococcus pneumoniae on pharmacodynamic parameters of beta-lactams in a mouse sepsis model.

J Casal, L Aguilar, I Jado, J Yuste, M J Giménez, J Prieto, A Fenoll

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
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  8. Article
  9. Animal models of Streptococcus pneumoniae disease.Clinical microbiology reviews · 2008
    Review
  10. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

J CasalCentro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain. jcasal@isciii.es
L Aguilar
I Jado
J Yuste
M J Giménez
J Prieto
A Fenoll
Centro Nacional de Microbiologia · ESGlaxoSmithKline (India) · INInstituto de Salud Carlos III · ESUniversidad Complutense de Madrid · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A dose-ranging study to investigate the in vivo effects of the presence of specific antibodies on the efficacy of beta-lactam treatment of sepsis caused by Streptococcus pneumoniae (non-beta-lactam-susceptible serotype 6B isolate) was performed with a BALB/c mouse model. Hyperimmune serum was obtained from mice immunized with the heat-inactivated strain. The rate of mortality was 100% in nontreated animals in the absence of specific antibodies. A single injection of a one-half or one-quarter dilution of hyperimmune serum produced 60 to 40% survival rates. In the absence of specific antibodies, the minimal effective doses of amoxicillin and cefotaxime that produced survival rates of 100 and 80% were 25 and 50 mg/kg of body weight (three times a day for up to six doses), respectively. These doses produced times that the levels in serum remained above the MIC (deltaT > MICs) approximately 30% of the dosing interval. When specific antibodies were present (by administration of a one-half or one-quarter dilution of hyperimmune serum), the minimal effective doses of the antibiotics were 3.12 and 6.25 mg/kg ( approximately 8 times lower), with the deltaT > MICs being approximately 3 and 5% of the dosing interval for amoxicillin and cefotaxime, respectively. This in vivo combined pharmacodynamic effect offers possibilities that can be used to address penicillin resistance.

Indexed as

AmoxicillinAnimalsAntibodies, BacterialAntibody Specificitybeta-LactamsCefotaximeDisease Models, AnimalHumansImmune SeraMiceMice, Inbred BALB CPneumococcal InfectionsSepsisStreptococcus pneumoniaeTreatment OutcomeAmoxicillinAntibodies, Bacterialbeta-LactamsCefotaximeImmune Sera

Identifiers

PMID11959566
PMCPMC127147
OpenAlexW2032123685

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.