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Related Concept Videos

Epistaxis01:30

Epistaxis

113
Epistaxis, or nosebleeds, occurs when small, swollen blood vessels in the nasal mucous membrane rupture. Typically, the anterior septum is the primary site of occurrence.
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
113

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Related Experiment Video

Updated: May 20, 2025

Novel Methods for Intranasal Administration Under Inhalation Anesthesia to Evaluate Nose-to-Brain Drug Delivery
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Treating neuroinflammation through the nose.

Leslie K Ferrarelli1

  • 1Science Signaling, AAAS, Washington, DC 20005, USA.

Science Signaling
|March 25, 2025
PubMed
Summary

A novel antibody administered intranasally after brain injury promotes neuroprotection and reduces inflammation. This nasal antibody delivery offers a promising therapeutic strategy for brain injury recovery.

Area of Science:

  • Neuroscience
  • Immunology
  • Pharmacology

Background:

  • Brain injuries trigger detrimental neuroinflammatory responses.
  • Current treatments for brain injury have limitations.
  • Targeting neuroinflammation is crucial for recovery.

Purpose of the Study:

  • To investigate the neuroprotective and anti-inflammatory effects of a systemically administered antibody.
  • To evaluate the efficacy of intranasal delivery of this antibody after brain injury.

Main Methods:

  • Brain injury model in rodents.
  • Intranasal administration of a specific antibody.
  • Assessment of neuroinflammation markers (e.g., cytokines).
  • Evaluation of neuroprotection markers (e.g., neuronal survival).

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Main Results:

  • Intranasal antibody administration significantly reduced key markers of neuroinflammation.
  • The antibody treatment led to enhanced neuronal survival in the injured brain region.
  • No significant adverse effects were observed with the intranasal delivery method.

Conclusions:

  • Intranasal antibody delivery is a viable and effective route for targeting brain inflammation.
  • This approach demonstrates significant neuroprotective potential following brain injury.
  • Further research into this therapeutic strategy is warranted for clinical translation.