immunity Flashcards
invovled with humoral immunity
cells and infection
B-cell
Neutrophils
Bacterial infections
protect the tissues
cell mediated immunity
T-cells
macrophages
nonbacterial infections
T-cell
3rd pharyngeal pouch missing
hypocalcemia
Chro 22
DiGeorge syndrome
T-cell
candida infection on skin and mucous membranes
T-cell can’t fight candida
Chronic mucocutaneous candidiasis
chronic fatigue syndrome
Steroids
anti-inflammatory and physiologic actions
steroid best for crossing membrane
Dexamethasone
Steriod good for cortisol replacement
hydrocortisone
Steriod good for fluid replacement
Fludrocortisone
which drug prolong longevity of transplanted organs
ihibits calcineurin
cyclosporine
gingival hyperplasia, hirsutism, renal failure
decrease T-cell activation
by decreasing IL-2 transcription
Tacrolimus
inhibit mTOR kinase
decrease response to IL-2
Sirolimus( rapamycin)
tyrosine kinase inhibitor
2 tyrosine kinase inhibitor
sirolimus
imatinib
Cells involve in a TRAP pos leukemia
75% B cell
25% T-cell
hairy
T-cells characterise by indented cell membrane
mycosis Fungoides
Sezary Syndrome
lymphoma
enzyme involve with SCID
affects all rapidly dividing cell
Adenosin deaminase
X-linked recessive
eczema, Normal Ig-A/E levels
mc in Boys(X-linked R)
Thrombocytopenia
wiskott-Aldridge syndrome
needed for class switching
IL-4 defect
CD-40 ligand defect
Tyrosine kinase defect
Normal B-cell count defective function
early onset
defective cell signaling
x-linked recessive
Burton’s Agammaglobulinemia
Agamma globulinenia
like Bruton’s
Lacking B-cells function with normal count
late onset
CVID
cellular components of Leukemias
98% B cells
2% T-cells in periphery
1 plasma cell cancer
plasmacytoma
multiple plasma cell cancer
multiple osteolytic lesion
Multiple myeloma
finding of MM
Rouleaux formation
hi Ca
Ig-G M-Spike
Kappa light chains(Bence jones proteinuria
Heavy chain disease
Ig-A MM of bowel wall
Ig-A plasma cell visible
Malabsorption
Selective Ig-A def
Mucosal infections
transfusion anaphylaxis
May run with Selective Ig-G2
main opsin to coat encapsulated organism
Ig-G2
IgG 2 defect Sign
Recurrent encapsulated organism infection
may run with selective Ig-A def
what is the G-pos encapsulated bug
Strep Pneumo
G-Neg encapsulated org
Salmonella
Klebsiella
H. flu B
pseudomonas
neisseria
citrobacter
High Ig-E
red-hair female
defective neutrophils
Job’s syndrome
Neutrophil defects conditions
myeloperoxidase def
NADPH-oxidase (CGH)
absolute neutropenia
neutrophil defect
recurrent gram-pos infection
myeloperoxidase def
neutrophil
x-linked R
dihydrorhodamine pos
Neg NBT test
CGD:NADPH-oxidase
low absolute Neutropenia at risk for
<1500
<1000
<500
staph and pseudomonas
1 antibiotic=staph
2 antibiotic=pseudomonas
what you see with macrophage defect
NADPH-Oxidase def (CGD)
Chediak-Higashi
Albinism, Lysosomal inclusions
can’t digest pathogen
chediak-Higashi syndrome
two populations with highest incidence of HIV
heterosexual Black women
Elderly
Lowest HIV risk population
Pre-pubertal female
vaginal acidity gained at puberty..HIV💕acidic mucosae& CD-4 receptors
location for the most CD4 receptors
female cervix
Bld vessels
Macrophages (everywhere they go)
T-helper cells (attacked first)
CNS
Testes
T/F HIV penetrats cells
F
cancers common in HIV
where CD4 is aboundant
Cervical cancer
Kaposi Sarcoma
CNS
testicular lymphomas
Anal cancer (HPV)
portal of entry for HIV RNA injection
GP41
HIV attachment of cell
needs CCR5
GP120
Used for HIV assembly
P17 and P24
Use for HIV RNA integration with host
Polymerase protein
when to screen pregnant woman for HIV
1st tri and 3rd tri
use >90 days after HIV exposure
Ora-Quick
use for screening only in the first 18 months of life
PCR
AIDs defining: CD4 count<200
Peds<20%
PJP prophylaxis
HIV CD 4 count <100
Toxoplasmosis
HIV
at CD4 count<50
Peds CD4 < 10%
Begin HAART therapy
Highly active antiretroviral therapy (HAART) is a combination of three or more drugs used to treat HIV infection
HIV prevention
PrRP
tenofeovire/emtricitabine
pericoital period and HIV neg partner
HIV
Post Exposure prophalaxis (PEP)
RET: Raltegravire
Emtricitabine
Tenofovire
T/F
HIV infected mother avoid breastfeeding
T
T/F
antiviral for new born up to 1st 6 month
T
use in mother with detectable HIV viral load
IV Azothioprine
PEP: RET
HIV entry inhibitor
enfuvirtide
CCR5 receptor antagonist
Maraviroc
Reverse transcriptase inhibitor
AZT
3TC
4DT
DDI
DDC
Abacavir (ABC)
Didanosine (ddI)
Emtricitabine (FTC)
Lamivudine (3TC)
Stavudine (d4T)
protease inhibitors
indinarvire
Saquinavir
integras inhibitors
Raltegrase
Elvitegravir
prevent megaloblasic anemia with _________for PJP treatment
Trimethoprim/sulfamethoxazole
Leucovorin
pentamindine aerosol
Blocks Dihydrofolate Reductase
trimethoprim
Pyrimethamine
methotrexate
Block PABA
sulfamethoxazole
sulfacetamide
sulfinpyrazone
sulfasalazine
sulfadiazine
Mycobacterium Avium intracellular treatment
clarithromycin
azithromycin
Block translocase.
macrolide
clindamycin
Lincomycin
MOA of vasovagal syncope post vaccine administration
hypovolumic and bradycardic
stress-induced cardioinhibitory and vasodepressor response
What is an antigen
molecule that sets off immune response
Haptens
Immunogen
most important factor that determines immunogenicity
Variability
What do macrophages do for a living
ingest
phagocitize
Digest
Present
MHC II complex
Variable Beta region
Invariant chain is displaced
IL-1 is released
what is immunogen
Carrier effect use in vaccines: eg: DTAP
Hapten + something else
large enough to attract immune response
IL-1 function
fever
nonspecific symptoms of illness(low energy state)
Recruits T-helper cells
Fever effect
causes secretion of Ig-A
rapid response of immue cells
raise BP by 10 for 1degree rise in temp
Infections that cause Heart Block
legionella
lyme disease
chaga’s disease
Diphtheria
Typhoid fever
what does fever mean
IL-1 show up
fever pattern can be diagnostic
104=medical emergency
make less immunogenic
detergent
disrupts the adhsion of pathogen membrane
make less immunogenic
antiseptic/disinfectant
destroys membrane and inactivate endotoxin
99% killer
phenol is mc
iodine –hospital use
sterilization
spores killer
121 degree C with vaporized heat for 15mn
most immunogenic bacteria
Shigella
two arms of immune system
hemoral
cell mediated
where do macrophages go?
T-cell and macrophages respond to
virus
fungus
mycobacteria
protozoa
parasite
collagen vascular Dz
neoplasm
first sign of cell injury
NA/K pump stops
swelling
swelling and neurophils show up
acute inflammation
seen in chronic inflammation
cell
biopsy
x-ray
t-cells and macrophages
fibroblas: fibrosis on biopsy
calcification on x-rays
cells involved with immediate hypersensitivity
mast cells and eosinophils
no complement
cytotoxic deliberate attack on self
type II HSensitivity
consumptive complement,
tissue damage,
immune complex deposition
Type III hyperS
not an attack on self
cells involve with type 4
T-cell
Macrophages