Shared Flashcard Set

Details

Immuno exam 2
fricken cards man
4
Medical
Professional
02/08/2011

Additional Medical Flashcards

 


 

Cards

Term
Zap 70 deficiency
Definition

Involved in signal transduction

lack of cd 8 t cells

CD4 unresponsive to TCR

Term

Phagocyte: LAD

Definition

 

 

• Population features

– Autosomal recessive

– Estimated prevalence at 1:10

 

 

5

• Mechanism

– Defect in the common

 

 

β

-subunit of integrins affects WBC

migration

• Classical symptoms

– High WBC counts, no pus formation, no effective wound healing

– Newborns have delayed umbilical cord separation

– No classical clinical signs during severe infection (e.g. no LN

swelling, or inflammation cardinals)

Term

Phagocyte: CGD

Definition

• CGD

– Chronic granulomatous disease

• Population features

– Most are X-linked and some are autosomal recessive

– Estimated prevalence at 1:200,000

– Manifested by age 2

• Mechanism

– Defect in respiratory burst (i.e. lack of NADPH oxidase or similar

enzymes) affects efficient phagocytic killing

• Classical symptoms

– Susceptible to low virulence bacteria

– Patients carry widespread

Term

Phagocyte: Chediak-Higashi

Definition

Population features

– Autosomal recessive

– Rare

• Mechanisms

– Defect in vesicle fusion affects degranulation and killing

of phagocytes

– Characterized by abnormal giant granules and

organelles in cells

• Classical symptoms

– Recurrent infection by pyogenic organisms

– Associated with neutropenia and massive infiltration of

lymphocytes and M

 

φ

in liver, spleen, and LN

Supporting users have an ad free experience!