Evidence map›Paper›PMID 15164987›Full record

ArticleJournal of neuro-oncology2004

Interstitial infusion of carmustine in the rat brain stem with systemic administration of O6-benzylguanine.

Mark M Souweidane, Giuseppe Occhiogrosso, Erika B Mark, Mark A Edgar, Ira J Dunkel

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of neuro-oncology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.2field-weighted citation impact, top 43% 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

10 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. The effects of temozolomide delivered by prolonged intracerebral microinfusion against the rat brainstem GBM allograft model.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2012
    Article
  6. Article
  7. Article
  8. Neurological grading, survival, MR imaging, and histological evaluation in the rat brainstem glioma model.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2009
    Article
  9. Local chemotherapy in the rat brainstem with multiple catheters: a feasibility study.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2009
    Article
  10. Brain Stem Tumors.Current treatment options in neurology · 2005
    Article
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

5 authors at 3 institutions in 1 country.

Mark M SouweidaneDepartment of Neurological Surgery, The Weill Medical College of Cornell University, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. mmsouwei@med.cornell.edu
Giuseppe Occhiogrosso
Erika B Mark
Mark A Edgar
Ira J Dunkel
Cornell University · USMemorial Sloan Kettering Cancer Center · USNeurological Surgery · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Interstitial infusion of carmustine (BCNU) into the rat brain stem in conjunction with systemic administration of O6-benzylguanine (O6-BG) was performed in an effort to assess clinical tolerance. A total of 12 rats underwent stereotactic cannula placement into the pontine segment of the brain stem. Six of the rats underwent a 24-h infusion of BCNU (Volume of infusion [Vi] 200 microl) at its maximal concentrated dose (3.3 mg/ml) in 5% dextrose water. Six additional rats underwent 24-h infusion of BCNU preceded by an intraperitoneal injection of O6-BG at a dose of 50 mg/kg. Serial neurological examinations were performed on all animals. Histologic analyses were performed immediately or 2 weeks following sacrifice. Postoperatively, there were no neurological changes in any of the animals. Postmortem histological examination of the brains showed small pontine cavitary lesions (ranging from 20 to 250 microm) containing variable numbers of macrophages or neutrophils consistent with an inflammatory response. No changes beyond these findings indicated any histological evidence of injury. These finding were limited only to the cannula site and no changes beyond region of the cannula tract were found. These findings indicate that interstitial infusion of BCNU into the brain stem in conjunction with systemic administration of O6-BG is safe in a small animal and may serve as a potential investigative strategy for children with diffuse pontine gliomas.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsBrain StemCarmustineGuanineInfusion PumpsInjections, IntraperitonealMacrophagesMaleNeutrophilsRatsRats, Sprague-DawleyStereotaxic TechniquesCarmustineGuanineO(6)-benzylguanine

Identifiers

PMID15164987
OpenAlexW2049408161

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.