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Related Concept Videos

Allergic Reactions02:06

Allergic Reactions

Overview
Allergic Reactions: Anaphylaxis01:30

Allergic Reactions: Anaphylaxis

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, heparin),...
Allergic Drug Reactions01:27

Allergic Drug Reactions

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 numerous...
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs01:25

Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs

Asthma is a chronic respiratory condition for which new therapeutic avenues, including anti-inflammatory drugs like mast cell stabilizers and anti-IgE treatments, continue to be developed.
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Asthma I: Introduction01:28

Asthma I: Introduction

Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
Chemical Factors Affecting Respiration Centers01:31

Chemical Factors Affecting Respiration Centers

Chemical factors such as changing CO2, O2, and H+ levels in arterial blood play a critical role in influencing respiration depth and rates. These variations are detected by chemoreceptors—specialized sensors located in two primary body areas. Central chemoreceptors are found throughout the brain stem, including the ventrolateral medulla, while peripheral chemoreceptors are located in the aortic arch and carotid arteries.
CO2 has a potent influence on respiration and is strictly regulated. Under...

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Related Experiment Video

Updated: Jun 9, 2026

Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10
10:42

Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10

Published on: November 19, 2016

Important Florida botanical aeroallergens.

Joshua F Phillips1, Mary L Jelks, Richard F Lockey

  • 1Division of Allergy and Clinical Immunology, Department of Internal Medicine, University of South Florida College of Medicine, James A. Haley Veterans Affairs Medical Center, Tampa, Florida 33612, USA. jphillip@health.ust.edu

Allergy and Asthma Proceedings
|September 8, 2010
PubMed
Summary
This summary is machine-generated.

Florida

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Last Updated: Jun 9, 2026

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Area of Science:

  • Allergy and Immunology
  • Botany
  • Environmental Health

Background:

  • Florida has 4 million allergy sufferers and 15,000 plant species.
  • Only a few plant species have documented allergenic pollen.
  • Florida's distinct, non-seasonal pollen patterns differ from national averages.

Purpose of the Study:

  • To review clinical studies on allergenic pollens in Florida.
  • To summarize expert opinions on prevalent allergenic plants in Florida.
  • To provide accurate interpretation of Florida's unique pollen data.

Main Methods:

  • Literature review of clinical studies on pollen allergenicity.
  • Compilation of expert opinions on Florida's allergenic flora.
  • Analysis of seasonal pollen trends in Florida.

Main Results:

  • Limited plant species in Florida are confirmed allergens.
  • Florida's allergenic plants exhibit unique, non-traditional pollination seasons.
  • Publicly reported pollen counts may lack necessary context for accurate patient interpretation.

Conclusions:

  • Understanding Florida's specific allergenic plants and their unique pollination patterns is crucial.
  • Accurate interpretation of pollen data is essential for managing allergies in Florida.
  • Further research and public education are needed for Florida allergy sufferers.