Allergen Science Blog

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Allergen Exposure and Allergic Disease

  • Testing for Indoor Allergens

    Testing for indoor allergens should be considered in some cases during the completion of indoor air quality investigations. While allergen testing was limited to research settings in the past, the number of commercial laboratories that …Read More

  • Sampling for Indoor Allergens

    Sampling for indoor allergens can be an important component of an indoor air quality investigation in some cases, depending on particular scopes. If the procedure is performed correctly, the collected samples can be analyzed to …Read More

  • Dust mite micro photograph
    Relevance of Indoor Allergen Exposure

    The prevalence of allergic diseases, including asthma and hay fever (allergic rhinoconjunctivitis), has increased in developed countries around the world during the past decades and continue to increase. According to the American Academy of Allergy …Read More

  • How Human Activities Impact Pollen

    A large number of plants exist on Earth. Geographical location, soil composition, and climate are the main natural factors associated with plant distribution and botanical biodiversity. Speciation and hybridization are responsible for the existence of different …Read More

  • Factors Responsible for Allergies

    According to the World Health Organization (WHO) and the World Allergy Organization (WAO), allergies or immediate-type hypersensitivity reactions, affect approximately 20-30% of the world population. Allergies are the most common chronic diseases in adults and …Read More

  • Spring Allergies

    After a winter, we appreciate the following spring with milder temperatures and longer days. However, many people suffering from spring allergies are concerned about exacerbations of their symptoms, resulting from exposure to airborne pollen. Allergies …Read More

  • Pollen and fungal spores
    Outdoor Allergen Exposure

    Outdoor allergen exposure, particularly pollen, and to a lesser extent fungal spores, cause seasonal allergies to many individuals worldwide. While it is not possible to totally avoid exposure to those allergens, it is feasible to …Read More

  • Global Warming and Allergies

    “Global warming”, also referred as to “climate change”, is a subject that has received major attention during the past years. The concept of global warming popularly used now refers to a gradual raise in the …Read More

Allergen Extracts for Pharmaceutical Applications

  • How allergen extracts are made

    Allergen extracts are biological products used to diagnose and treat allergic diseases. Knowledge about how allergen extracts are made is critical for the clinician for the purpose of selecting appropriate extracts for diagnosis and allergen …Read More

  • Storage of Allergenic Raw Materials

    Environmental factors is responsible for the deterioration of the source materials used to manufacture allergen extracts. Among these factors, moisture content of the materials and storage temperature play a combined role, responsible for the allergenic …Read More

  • Production of Pollen Extracts: How Pollen Purity is Evaluated

    After the pollen used for the production of pollen extracts has been collected (see the blog entitled “Production of pollen extracts: How pollen is collected”), pollen identity and purity is evaluated. Pollen collectors are requested …Read More

  • Pollen Collection to Produce Allergen Extracts

    Proper pollen collection is essential to produce allergen extracts. Pollen collection is tedious and requires a high level of specialization. A few large pollen collection entities own land to cultivate the desired plants for pollen …Read More

  • Evaluation of pollen purity to prepare allergen extracts

    Several factors are responsible for the composition, consistency, and stability of the allergen extracts used to diagnose and treat allergic diseases. The quality of the raw materials used to produce those extracts should be maximized. …Read More

  • Production of allergen extracts

    Introduction: Allergen extracts are biological products used to diagnose and treat allergic diseases. Allergy diagnosis is performed by a careful review of the patient’s medical history, often followed by in vivo and/or in vitro testing, …Read More

  • Allergen Extracts on the Market

    A large number of allergen extracts for diagnosis and/or treatment of allergies are available on the market. However, the safety and efficacy of many of them are controversial. In 2004, the Food and Drug Administration …Read More

  • Dog Allergen Extracts

    Dog allergen extracts are used to diagnose and treat allergic diseases. Mammalian allergens are present in a variety of sources, and different raw materials are used to produce the derived extracts.  Those materials include dander, hair, …Read More

  • Fungal Allergen Extracts

    A large number of fungal allergen extracts for diagnosis and treatment of allergic diseases are available on the market. This can be confusing for the allergist/immunologist to properly select the most clinically relevant extracts. While …Read More

  • Natural or Recombinant Allergens

    Allergenic materials are used to prepare allergen extracts to diagnose and treat allergic patients. Natural materials have been used for this purpose for many years.  It is often difficult to obtain sufficient quantities of natural …Read More