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Related Concept Videos

Modified-Release Drug Delivery Systems: Site-Targeted01:24

Modified-Release Drug Delivery Systems: Site-Targeted

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Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
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Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

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Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
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Allergic Reactions: Anaphylaxis01:30

Allergic Reactions: Anaphylaxis

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Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin,...
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Drug Delivery: Miscellaneous Routes01:22

Drug Delivery: Miscellaneous Routes

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Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection,  and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
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Modified-Release Drug Delivery Systems: Stimuli-Activated01:30

Modified-Release Drug Delivery Systems: Stimuli-Activated

118
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also...
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Allergic Drug Reactions01:27

Allergic Drug Reactions

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Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
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Updated: Apr 4, 2026

Author Spotlight: Advancing Allergic Rhinitis Research with Multicolor Immunofluorescence
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Nanoparticle-Based Targeted Drug Delivery Systems for Allergic Rhinitis: A Comprehensive Review.

Yuenan Wang1, Yang Zhou2,3, Boshen Liang4

  • 1Basic Medical College, Yunnan University of Chinese Medicine, Kunming, Yunnan, People's Republic of China.

International Journal of Nanomedicine
|April 3, 2026
PubMed
Summary
This summary is machine-generated.

Nanoparticles offer a promising approach to treat allergic rhinitis (AR) by enhancing drug delivery to nasal tissues. This targeted therapy improves efficacy and minimizes side effects compared to traditional treatments.

Keywords:
Allergic rhinitisactive targetingdrug delivery systemnanodrugnanoparticlespassive targetingtargeted therapy

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Area of Science:

  • Immunology and Nanomedicine
  • Focuses on the intersection of immune responses in allergic rhinitis and the application of nanoparticle-based drug delivery systems.

Background:

  • Allergic rhinitis (AR) involves IgE-mediated nasal inflammation.
  • Current treatments face limitations in bioavailability, side effects, and treatment windows.

Purpose of the Study:

  • To review the application of nanoparticles (NPs) in treating allergic rhinitis.
  • To highlight strategies for targeted nanodrug delivery in AR management.

Main Methods:

  • Summarized recent preclinical and clinical studies on NP applications for AR.
  • Cataloged various nanodrug delivery systems used in AR treatment.

Main Results:

  • Nanoparticles enhance drug bioavailability and enable targeted delivery to nasal tissues.
  • Passive and active targeting strategies improve therapeutic efficacy and reduce healthy tissue damage.

Conclusions:

  • Nanodrug carriers represent an innovative strategy for improved AR treatment.
  • Further research into nanodrug systems holds promise for enhanced clinical translation.