Evidence map›Paper›PMID 17296760›Full record

ArticleInfection and immunity2007

Influence of neutropenia on the course of serotype 8 pneumococcal pneumonia in mice.

Matthew Marks, Tamika Burns, Maria Abadi, Beza Seyoum, Justin Thornton, Elaine Tuomanen, Liise-anne Pirofski

Abstract read
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

45 citing papers in PubMed, 69 citations in OpenAlex.

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  11. Cytosolic Phospholipase AInfection and immunity · 2017
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  19. Review
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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 3 institutions in 1 country.

Matthew MarksDivision of Infectious Diseases, Albert Einstein College of Medicine, Forchheimer Bldg., 1300 Morris Park Avenue, Bronx, NY 10461, USA.
Tamika Burns
Maria Abadi
Beza Seyoum
Justin Thornton
Elaine Tuomanen
Liise-anne Pirofski
Albert Einstein College of Medicine · USSt. Jude Children's Research Hospital · USMontefiore Medical Center · US

Funding

IMMUNOLOGY AND IMMUNUNOOCOLOGY TRAINING PROGRAMT32CA009173 · NCI · YESHIVA UNIVERSITY · PI NATHENSON, STANLEY G · 1985 to 2009
$5.8M
VARIABLE GENE USE AND PNEUMOCOCCAL IMMUNITY IN AIDSR01AI045459 · NIAID · YESHIVA UNIVERSITY · PI PIROFSKI, LIISE-ANNE · 2000 to 2010
$3.9M
VARIABLE GENE DEFECTS AND PNEUMOCOCCAL SUSCEPTIBILITYR01AI044374 · NIAID · YESHIVA UNIVERSITY · PI PIROFSKI, LIISE-ANNE · 2001 to 2010
$2.7M
AUTOIMMUNE RESPONSE INDUCTION WITH SILICONE ADJUVANTSR01AI034597 · NIAID · ROCHESTER GENERAL HOSPITAL (NY) · PI NAIM, JOHN O · 1993 to 1997
–
NCI NIH HHS 2T33 CA 009173-31NCI NIH HHS T32 CA009173NIAID NIH HHS R01 AI044374NIAID NIH HHS R01 AI045459NIAID NIH HHS R01 AI 34597NIAID NIH HHS R01 AI 44374NIAID NIH HHS R01 AI 45459
6 · The paper itself

Abstract

Polymorphoneutrophils (PMNs) are important effector cells in host defense against pneumonia. However, PMNs can also induce inflammation and tissue damage. To investigate the contribution of PMNs to host defense against pneumococcal pneumonia, we determined the effect of the PMN-depleting rat monoclonal antibody RB6-8C5 (RB6) on survival and inflammatory and cellular response in the lungs to a lethal intranasal infection with a serotype 8 pneumococcus in BALB/c mice. Control mice received rat immunoglobulin G (rIgG). Strikingly, the survival of RB6-treated mice was significantly prolonged compared to that of rIgG-treated mice. Although the numbers of CFU in the lungs were statistically similar in both groups 4, 24, and 32 h after infection, rIgG-treated mice developed higher levels of bacteremia, and histopathological examination of the lungs of infected mice revealed marked differences between RB6- and rIgG-treated mice. RB6-treated mice had focal, perivascular lesions without accompanying parenchymal inflammation, and rIgG-treated mice had diffuse, interstitial parenchymal inflammation. Lung homogenates from the rIgG-treated mice had more leukocytes and significantly more total and apoptotic PMNs as determined by fluorescence-activated cell sorter analysis with Annexin V and terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end labeling staining of lung tissue samples. Studies with a pneumolysin-deficient mutant of the serotype 8 strain we used also demonstrated the prolonged survival of RB6- compared to rIgG-treated mice. Taken together, our findings suggest that PMNs enhance the likelihood of early death and alter the pathological response to pneumococcal lung infection in BALB/c mice with serotype 8 pneumonia without significantly affecting bacterial clearance or the cytokine response.

Indexed as

AnimalsAnnexin A5ApoptosisBacteremiaBacterial ProteinsBase SequenceBloodChemokinesColony Count, MicrobialCytokinesDNA, BacterialHistocytochemistryImmunohistochemistryIn Situ Nick-End LabelingLeukocyte CountLeukocyte Reduction ProceduresAnnexin A5Bacterial ProteinsChemokinesCytokinesDNA, BacterialplY protein, Streptococcus pneumoniaeStreptolysins

Identifiers

PMID17296760
PMCPMC1865693
OpenAlexW2148247163

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.