Evidence map›Paper›PMID 34834319›Full record

ArticlePharmaceutics2021

Selective CNS Targeting and Distribution with a Refined Region-Specific Intranasal Delivery Technique via the Olfactory Mucosa.

Frank Maigler, Simone Ladel, Johannes Flamm, Stella Gänger, Barbara Kurpiers, Stefanie Kiderlen, Ronja Völk, Carmen Hamp, Sunniva Hartung, Sebastian Spiegel and 6 more

Open access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Characteristics of pediatric olfactory airflow based on computational fluid dynamics analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  7. Review
  8. Olfactory Drug Delivery in Rodents: Deposition and Pharmacokinetics.ACS pharmacology & translational science · 2025
    Article
  9. Review
  10. Nose-to-brain drug delivery: from bench to bedside.Translational neurodegeneration · 2025
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Lipid-based nanoparticles via nose-to-brain delivery: a mini review.Frontiers in cell and developmental biology · 2023
    Review
  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

16 authors at 3 institutions in 1 country.

Frank MaiglerInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Simone LadelInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Johannes FlammInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Stella GängerInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Barbara KurpiersInterdisciplinary Neurobehavioral Core, Heidelberg University, Im Neuenheimer Feld 515, 69120 Heidelberg, Germany.
Stefanie KiderlenProspective Instruments LK OG, Stadtstraße 33, 6850 Dornbirn, Austria.
Ronja VölkInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Carmen HampInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Sunniva HartungInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.ORCID 0000-0002-9444-5363
Sebastian SpiegelInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Arghavan SoleimanizadehInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Katharina EberleInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Rebecca HermannInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.
Lukas KrainerProspective Instruments LK OG, Stadtstraße 33, 6850 Dornbirn, Austria.
Claudia PitzerInterdisciplinary Neurobehavioral Core, Heidelberg University, Im Neuenheimer Feld 515, 69120 Heidelberg, Germany.ORCID 0000-0002-7663-1031
Katharina SchindowskiInstitute of Applied Biotechnology, University of Applied Science Biberach, Hubertus-Liebrecht Straße 35, 88400 Biberach, Germany.ORCID 0000-0003-2514-1654
University of Applied Sciences Biberach · DEUniversität Ulm · DEHeidelberg University · DE

Funding

European Commission N2B-patch' Grant No. 721098Federal Institute for Risk Assessment ZEBET '3D für 3R'Federal Ministry for Economic Affairs and Energy ALIVEMinisterium für Wissenschaft, Forschung und Kunst Baden-Württemberg FcRn in N2BMinisterium für Wissenschaft, Forschung und Kunst Baden-Württemberg funds and fellowship by the Ulm and Biberach joint graduate school in pharmaceutical biotechnologyStiftung der Deutschen Wirtschaft fellowships (S.L. and J.F.)
6 · The paper itself

Abstract

Intranasal drug delivery is a promising approach for the delivery of drugs to the CNS, but too heterogenous, unprecise delivery methods without standardization decrease the quality of many studies in rodents. Thus, the lack of a precise and region-specific application technique for mice is a major drawback. In this study, a previously developed catheter-based refined technique was validated against the conventional pipette-based method and used to specifically reach the olfactory or the respiratory nasal regions. This study successfully demonstrated region-specific administration at the olfactory mucosa resulting in over 20% of the administered fluorescein dose in the olfactory bulbs, and no peripheral bioactivity of insulin detemir and Fc-dependent uptake of two murine IgG1 (11C7 and P3X) along the olfactory pathway to cortex and hippocampus. An scFv of 11C7 showed hardly any uptake to the CNS. Elimination was dependent on the presence of the IgG's antigen. In summary, it was successfully demonstrated that region-specific intranasal administration via the olfactory region resulted in improved brain targeting and reduced peripheral targeting in mice. The data are discussed with regard to their clinical potential.

Indexed as

biopharmaceuticalsCNS drug deliveryCNS targetingnose to brain drug deliveryrefined drug deliverytherapeutic antibodies

Identifiers

PMID34834319
PMCPMC8620656
OpenAlexW3213164825

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.