Evidence map›Paper›PMID 21500227›Full record

ArticleLasers in surgery and medicine2011

Effective photosensitization and selectivity in vivo of Candida Albicans by meso-tetra (N-methyl-4-pyridyl) porphine tetra tosylate.

Soumya Mitra, Constantine G Haidaris, Sara B Snell, Benjamin R Giesselman, Steven M Hupcher, Thomas H Foster

Open access · greenAbstract readComparative Study
In one paragraph

Article in Lasers in surgery and medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

8 citing papers in PubMed, 24 citations in OpenAlex.

  1. Photodynamic disinfection and its role in controlling infectious diseases.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2021
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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

6 authors at 1 institution in 1 country.

Soumya MitraDepartment of Imaging Sciences, University of Rochester Medical Center, Rochester, New York 14642, USA.
Constantine G Haidaris
Sara B Snell
Benjamin R Giesselman
Steven M Hupcher
Thomas H Foster
University of Rochester Medical Center · US

Funding

Resource in Education in Microbiology and ImmunologyR25GM064133 · NIGMS · UNIVERSITY OF ROCHESTER · PI LORD, EDITH M · 2002 to 2017
$4.2M
PHOTOPHYSICS OF PHOTODYNAMIC THERAPYR01CA068409 · NCI · UNIVERSITY OF ROCHESTER · PI FOSTER, THOMAS HARRISON · 1995 to 2011
$3.8M
NCI NIH HHS CA68409NCI NIH HHS R01 CA068409NIGMS NIH HHS R25 GM064133-2106
6 · The paper itself

Abstract

BACKGROUND AND

objectiveThe fungus Candida albicans commonly causes mucosal and cutaneous infections in patients with impaired immunity. We investigated the effectiveness of the photosensitizer meso-tetra (N-methyl-4-pyridyl) porphine tetra tosylate (TMP-1363) in the photodynamic treatment (PDT) of C. albicans infection in vitro and its selectivity in an animal model. MATERIALS AND

methodsThe efficacy of TMP-1363 in PDT of C. albicans in vitro was compared to that of methylene blue (MB) using a colony forming unit (CFU) assay. In vivo infection in the mouse was established by inoculation of C. albicans yeast in the intradermal space of the ear pinna. Two days post-infection, 0.3 mg ml(-1) TMP-1363 was administered topically. Thirty minutes after TMP-1363 application, the ears were irradiated at 514 nm using a fluence of 90 J cm(-2) delivered at an irradiance of 50 mW cm(-2) . The ears were excised 2 hours post-irradiation, homogenized, and the organism burden was determined by a CFU assay. In vivo wide field and confocal fluorescence imaging assessed the localization of the photosensitizer in relationship to C. albicans.

resultsPhotosensitization with TMP-1363 resulted in a greater than three-log increase in killing of C. albicans in vitro compared to MB. In vivo fluorescence imaging demonstrated a high degree of selective labeling of C. albicans by TMP-1363. PDT of infection using TMP-1363 resulted in a significant reduction in CFU/ear relative to untreated controls. Infected ears subjected to PDT displayed complete healing over time with no observable damage to the pinna.

conclusionOur in vitro and in vivo findings support TMP-1363-mediated PDT as a viable therapeutic approach for the PDT of candidiasis.

Indexed as

Administration, TopicalAnimalsCandida albicansCandidiasisColony Count, MicrobialDisease Models, AnimalDose-Response Relationship, DrugFemaleFluoroscopyIn Vitro TechniquesMethylene BlueMiceMice, Inbred BALB CPhotochemotherapyPhotosensitivity DisordersPhotosensitizing AgentsMethylene BluePhotosensitizing AgentsPorphyrinstetra(4-N-methylpyridyl)porphine

Identifiers

PMID21500227
PMCPMC3080247
OpenAlexW1994383808

What OpenQuestion holds

Textmetadata
LicenceTDM
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.