L12 - Autoimmune Diseases 2 Flashcards
what is the explanantion for INFECTION leading to autoimmune diseases??? briefly outline
molecular mimicry
what happens at infection? series of events. why does autoimmunity happen
what are examples of this? on back
what causes autoimmune haemolysis and rheumatic fever and how does it happen
what does mycoplasma pneumonia cause and why
streptococcal infection
T1 DM
how, what happen. onset. disease prev. trear? diff from others how
what is the evidence for autoimmune disease?!?!?!
progression of type one. what happens by the point of overt diabetes
type 1 diabetes and genetics
how is it shown to be linked / important
what is the major defined risk factor???
—– why the risk factor happen, what it dioo
when would the autoimmune response occur
hla class II alleles
- ——- DR3 ORRR DR4 (rel risk is 6)
- ——- DR3 AND ——- RR15
precipitating events for T1DM
why is identifying triggers difficult
what is there evidence for
—why (3)
—protein 2C from coxsackie virus has homology with islet cell antigen glutamic acid decarboxylase
THE MULTISTEOP DEVELOPEMENT OF AID
whats involved, talk about each
mhc background
t cell repertoire
infection
plus other gen environ
automimme serology for diagnosis
what can be used and why
what are the 3 methods for detection
indirect immunofluorescence
solid phase immunoassay
direct immunofluroescence
indirect immunofluorescence
what does it detect and HOWWW- steps
what are the main ones
what can it be used for, but what ele could be used. for this disease, why is it important to identify, what are you look for
immunoassay
how does it work
what is it being replaced by and why
ELISA PRACTICAL
what is used
talk through the steps
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also what are the principles of the experiment, afterwards, and what is important to be done for the experiment. what is produced after
ELISA PRACTICAL
what is used
talk through the steps
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also what are the principles of the experiment, afterwards, and what is important to be done for the experiment. what is produced after
DIRECT immunofluorescence
what happens how is it different to indirect
bulbous skin diseases what are there and what are the features where are they what is the antigen target how does it happen
pemphigus
pemphigoid
how do thy present
where is the target for antigens
what happens
pemphigus - intracellular cement protein desmolein 3 in superficial skin layers
pemphigoid
dermo-emidermal junction
activates complement producing skin dehiscence and tense bliser