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Archive: Month: April 2021

Mast Cell Conditions

April 22, 2021 | Black & Kletz Allergy

Mast cells are a type of white blood cells. They are an important part of our immune system as they help us fight off infections and other invaders. Mast cells contain granules which contain a variety of chemical substances (e.g., histamine, heparin, tryptase, serotonin, leukotrienes, prostaglandins, cytokines). These chemical substances have effects on the body […]

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Spring Cold or Spring Allergies?

April 1, 2021 | Black & Kletz Allergy

Spring is in the air and many individuals are suffering. Although many are experiencing the signs and symptoms of hay fever (i.e., allergic rhinitis), not all of these individuals are allergic to the Spring pollens. In a typical Spring hay fever patient, the symptoms are generally due to an allergy to either tree pollen, grass […]

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McLean, VA Location

1420 SPRINGHILL ROAD, SUITE 350

MCLEAN, VA 22102

PHONE: (703) 790-9722

FAX: (703) 893-8666

Washington, D.C. Location

2021 K STREET, N.W., SUITE 524

WASHINGTON, D.C. 20006

PHONE: (202) 466-4100

FAX: (202) 296-6622

Manassas, VA Location

7818 DONEGAN DRIVE

MANASSAS, VA 20109

PHONE: (703) 361-6424

FAX: (703) 361-2472


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