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Allergies. Immediate hypersensitivity Excessive IgE production in response to allergens (antigens). Allergic Reaction. B cells secretes allergen specific Ig Helper T release cytokines which tell B cells to make IgE B cell switches from IgG to IgE IgE binds to mast cells and basophils

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Presentation Transcript
allergies
Allergies
  • Immediate hypersensitivity
    • Excessive IgE production in response to allergens (antigens)
allergic reaction
Allergic Reaction
  • B cells secretes allergen specific Ig
  • Helper T release cytokines which tell B cells to make IgE
  • B cell switches from IgG to IgE
  • IgE binds to mast cells and basophils
  • Next exposure triggers these cells to secrete histamine, prostaglandins, etc.
allergic reaction3
Allergic Reaction
  • Common Allergens
    • Foods
    • Insect venom
    • Molds
    • Animal dander
    • Pollen
bee sting response
‘Bee’ Sting Response
  • After your first bee sting reaction, future bee stings double and triple in severity.
    • True
    • False
bee sting response6
‘Bee’ Sting Response
  • After your first bee sting reaction, future bee stings double and triple in severity.
    • False – Most studies show that repeated stings appear to have a lesser reaction.
bee sting response7
‘Bee’ Sting Response
  • Elderly individuals are more susceptible to severe reactions.
    • True
    • False
bee sting response8
‘Bee’ Sting Response
  • Elderly individuals are more susceptible to severe reactions.
    • False – As you age, your histamine production declines.
bee sting response9
‘Bee’ Sting Response
  • Bees can see and sting in the dark.
    • True
    • False
bee sting response10
‘Bee’ Sting Response
  • Bees can see and sting in the dark.
    • Neither. Bees can’t see in the dark but they can STILL sting!
bee sting response11
‘Bee’ Sting Response
  • Severe anaphylactic reactions usually occur in the first 5-10 minutes..
    • True
    • False
bee sting response12
‘Bee’ Sting Response
  • Severe anaphylactic reactions usually occur in the first 5-10 minutes..
    • False – 15-30 minutes is the average. Reactions may occur up to 5 hours later but 60% occur in the first hour.
    • Source of quiz: www.surviveoutdoors.com/reference/beeswasps/indes.asp
bee sting response13
‘Bee’ Sting Response
  • If you are allergic to bee stings, then you are automatically allergic to wasp stings.
    • True
    • False
bee sting response14
‘Bee’ Sting Response
  • If you are allergic to bee stings, then you are automatically allergic to wasp stings.
    • False – Bee venom and wasp venom differ. You can be allergic to either but only a small % are allergic to both.

Source: http://wasps.ucr.edu/waspfaq.html#topic3

bibliography
Bibliography
  • Buchmann, Dr. Stephen. 2004. “What’s Buzzin in my Garden.’ http://www.pollinator.com/identify/whatsbuzzin.htm
  • Caron, Dewey M. 1999. Honey Bee Biology and beekeeping. Wicwas Press, LLC.
  • Raven, Peter H., et al. 2008. Biology, 8th ed. McGraw Hill Higher Education. New York, N.Y.
  • Survive Outdoors, Inc. 2006. Bee stings. www.surviveoutdoors.com/reference/beeswasps/index.asp
  • Vetter, R.S. 2004. Misconceptions about Yellowjackets. http://wasps.ucr.edu/waspfaq.html#topic3
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