Evidence map›Paper›PMID 12052080›Full record

ArticleBiotechnology progress

pH-Sensitive hydrogels as gastrointestinal tract absorption enhancers: transport mechanisms of salmon calcitonin and other model molecules using the Caco-2 cell model.

Madeline Torres-Lugo, Marcos García, Rae Record, Nicholas A Peppas

Abstract read
In one paragraph

Article in Biotechnology progress. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.9field-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

20 citing papers in PubMed, 81 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. An overview of clinical and commercial impact of drug delivery systems.Journal of controlled release : official journal of the Controlled Release Society · 2014
    Review
  5. Polymeric nanoparticle system to target activated microglia/macrophages in spinal cord injury.Journal of controlled release : official journal of the Controlled Release Society · 2014
    Article
  6. Article
  7. Review
  8. An inulin and doxorubicin conjugate for improving cancer therapy.Journal of drug delivery science and technology · 2013
    Article
  9. Article
  10. Article
  11. Enhanced mucoadhesive capacity of novel co-polymers for oral protein delivery.Journal of biomaterials science. Polymer edition · 2011
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Engineering design and molecular dynamics of mucoadhesive drug delivery systems as targeting agents.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2009
    Review
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Madeline Torres-LugoNSF Program on Therapeutic and Diagnostic Devices, School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907-1283, USA.
Marcos García
Rae Record
Nicholas A Peppas
Purdue University West Lafayette · US

Funding

PH-SENSITIVE HYDROGELS FOR DRUG RELEASER01GM043337 · NIGMS · PURDUE UNIVERSITY WEST LAFAYETTE · PI PEPPAS, NICHOLAS A · 1990 to 2001
$590k
NIGMS NIH HHS GM 43337NIGMS NIH HHS R01 GM043337
6 · The paper itself

Abstract

The main interest of this work was the investigation of the transport mechanisms of salmon calcitonin through the epithelial cell monolayer in the presence and absence of pH-sensitive hydrogel nanospheres composed of poly(methacrylic acid-grafted-poly(ethylene glycol)) (PMAA-g-EG). For this purpose, a gastrointestinal cell culture model, the Caco-2 cell line, was employed. The transport of other macromolecules such as fluorescein sodium, fluorescein isothiocyanate dextran, and (14)C-mannitol were also investigated and compared. Transport experiments were conducted in the apical-to-basolateral direction at 37 and 5 degrees C and from the basolateral-to-apical direction at 37 degrees C. Results revealed that the presence of P(MAA-g-EG) nanospheres increased the transport of paracellularly transported molecules such as (14)C-mannitol and fluorescein isothiocyanate dextran when compared to controls. Fluorescein sodium salt solutions were investigated as an actively transported molecule. The transport of fluorescein was affected by the concentration of PEG chains in the structure. Salmon calcitonin transport was enhanced in the presence of the nanospheres. The comparison of the transport behavior of dextran and calcitonin revealed that the main transport mechanism for salmon calcitonin through epithelial cell monolayers is predominantly paracellular.

Indexed as

HydrogelsHydrogen-Ion ConcentrationIntestinal AbsorptionBiological TransportCaco-2 CellsHumansMicrospheresHydrogels

Identifiers

PMID12052080
PMCPMC4467728
OpenAlexW2121267074

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.