Shared Flashcard Set

Details

Exam 4 Diseases
VCOM Block 1 2011
64
Immunology
Graduate
09/17/2011

Additional Immunology Flashcards

 


 

Cards

Term
Systemic Lupus Erythematosusm (SLE)
Definition
"the great immitator" 4 of 11 symptoms must be present for diagnosis
Term
Rheumatoid Arthritis
Definition
progressive inflammation, joint destruction, loss of function. DIP and PIP. Swan neck deformity. Boutinnier deformity. Z-thumb deformity. Ulnar deviation. doughy swelling and warmth. worse in the morning.
Term
Rheumatoid Factor
Definition
antibodies against Fc portion of IgG
Term
Hashimoto's Disease
Definition
autoimmune destruction of thyroid causing hypothyroidism
Term
Diabetes Mellitus
Definition
autoimmune destruction of islaet cells causing decreased insulin production. Reactive hyperglycemia. Low C-peptide levels.
Term
Myasthenia Gravis
Definition
autoimmune destruction of acetylcholine receptors at the post-synaptic cleft which blocks muscle contraction
Term
Type I Hypersensitivity
Definition
IgE mediated. Classical Allergy.
Term
Rhinoconjuctivitis
Definition
enter body thru inhalation. causes edema of nasal mucosa and swelling of upper respiratory tract and sinuses
Term
Asthma
Definition
enter body thru inhalation. Causes bronchial constriction, increased mucous production, and airway inflammation.
Term
Anaphylaxis
Definition
Enters thru IV (direct or indirect through oral absorption). systemic. shock-like symptoms.
Term
Food Allergy
Definition
Entry is oral. Causes vomitting, diarrhea, hives, etc.
Term
Treatments for Type I Hypersensitivity
Definition
Anti-IgE. Anti-histamine. Anti-inflammatories. Epinephrine (inhibits degranulation of mast cells). Allergy shots (desensitization).
Term
HIV-1
Definition
common, more virulent form of HIV
Term
HIV-2
Definition
strain of HIV endemic to Africa and not as virulent
Term
Phase I of AIDS progression
Definition
flu-like symptoms. virus is multiplying.
Term
Phase II in AIDS progression
Definition
Opportunisitic infections. Th cells affected.
Term
Phase III in AIDS progression
Definition
Th cells < 200/mL. opportunisitc infection or cancer. officially called AIDS.
Term
Type II Hypersensitivity
Definition
IgG or IgM mediated. Cytotoxic.
Term
Hemolytic disease of the New Born
Definition
Rh (-) mom makes antibodies against her baby's Rh (+) antigens. When mom has a second Rh (+) baby, mom's hummoral system attacks the baby causing erythroblastosis fetalis.
Term
Autoimmune Hemolytic Anemia
Definition
body attacks its own RBCs
Term
Autoimmune Thrombocytopenia Purpura
Definition
Body attacks its own platelets
Term
Pemphigus Vulgaris
Definition
Auto-antibodies against desmosomes in skin, causes blisters on skin and mucous membranes.
Term
Goodpastures Syndrome
Definition
Auto-antibodies against type IV collagen in the basement membrane of kidney. Causes glomerular nephritis and lung hemorrhage.
Term
Acute Rheumatic Fever
Definition
occurs after strep infection. Strep M protein mimics myosin. Affects heart and joints.
Term
Lambert Eaton
Definition
attacks presynaptic membrane at neuromuscular junction
Term
Graves Disease
Definition
attacks Thyroid, causes hyperthyroidism
Term
Pernicious Anemia
Definition
attacks stomach cells, reduces production of intrinsic factor, which is a protein that helps the body absorb B12
Term
Type III hypersensitivity
Definition
IgG-mediated. Immune complexes deposit causing tissue damage and thrombosis. Neutrophils mediate most of the damage.
Term
Arthus Reaction
Definition
localized immune complex deposition. Edema
Term
Serum Sickness
Definition
systemic immune complex deposition. fever. lymphadenopathy. splenomegaly. etc.
Term
Type IV Hypersensitivity
Definition
CMI-mediated. Delayed Type.
Term
Hapten
Definition
small molecule that can only ellicit an immune response when conjugated to a larger protein. these small molecules conjugate to body proteins, forming immunogenic substances
Term
Celiac Disease
Definition
sensitivity to gluten. damages small intestine and interferes with absorption of nutrients from food.
Term
Poison Ivy
Definition
contact dermatitis. small molecule attaches to protein in skin and sensitizies Th1 cells. Next time this hapten is encountered, Th1 cells mount a secondary response and macrophage infiltration which causes inflammation
Term
autograft
Definition
from one area in a person to another area in the same person
Term
isograft
Definition
between identical twins
Term
allograft
Definition
between two different people, not twins
Term
xenograft
Definition
between different species
Term
Direct Pathway of Rejection
Definition
Foreign MHC presents its own antigen which is foreign to the recipient, and this activates the recipient's T cells. The cause of Acute Rejection.
Term
Indirect Pathway of Rejection
Definition
Recipient immune cells phagocytose cells from graft and present foreign MHC molecules to their T cells. This is the cause of Chronic Rejection.
Term
Autologous Stem Cell Transplant
Definition
donor is self or identical twin. take stem cells from the patient, irradiate the patient, give them back their stem cells. the cells are not rejected.
Term
Allogenic Stem Cell Transplant
Definition
donor is another person. they will be rejected unless the host immune system is repressed and T cells are eliminated from the donor.
Term
First set allograft rejection
Definition
the first time a donor gives cells to a recipient, they are rejected within 2 weeks, and now the host's T cells are primed against this particular donor
Term
Second set allograft rejection
Definition
cells from a donor are given a second time, and now a secondary immune response is mounted against the donated cells because memory T cells exist against it. it is rejected within 1 week.
Term
Hyperacute Rejection
Definition
transplant is destroyed by pre-existing antibodies, a secondary response. This is a second set rejection. No CMI response.
Term
Acute Rejection
Definition
Donor APCs migrate to host lymph nodes and present their antigens to the host's T cells, which starts an immune response. This is direct pathway of rejection. Most Common.
Term
Chronic Rejection
Definition
months to years after transplant, indirect pathway of rejection.
Term
Graft vs Host Disease
Definition
Donor T cells attack the host's antigens. Avoid by removing T cells from graft before transplanting.
Term
Cross Matching
Definition
drop of donor RBC mixed with a drop of patient's plasma. If agglutination occurs, they are not compatible.
Term
Acute Transfusion Reaction
Definition
Recipient's IgM mounts a response against the donor's A or B antigen, causing rapid hemolysis of donor RBCs. Causes Renal Failure, anaphylaxis, and cardiovascular collapse.
Term
Hemoglobinemia
Definition
serum is pink because of excess Hb in blood plasma
Term
Hemoglobinuria
Definition
urin is dark because of blood
Term
Transfusion Related Acute Lung Injury
Definition
immune complexes enter pulmonary bed and release vasoactie amines which causes vasodialation, plasma leakage, and pulmonary edema
Term
Severe Combined Immune Deficiency
Definition
deffective cell mediated and humoral immunity
Term
X-linked SCID
Definition
decreased T cells, normal or decreased B cells but low IgG
Term
Wiscott Aldrich Syndrome
Definition
Both B and T cells present but not functional due to a cytoskeletal defect
Term
Autosomal Recessive SCID
Definition
decreased B and T cells due to decreased purine degradation enzymes
Term
Ataxia telangiectasia
Definition
B and T cells not functional due to increased lymphocyte sensitivity to oxidative DNA damage
Term
Omenn Syndrome
Definition
T cells nonfunctional, B cells absent, due to mutation in RAG
Term
X-linked agammaglobulinemia
Definition
decreased B cells and Igs.
Term
IgA deficiency
Definition
recurrent respiratory or GI infections
Term
DiGeorge Disease
Definition
T cell deficiency, thymic hypoplasia
Term
Chronic Granulomatous Disease
Definition
phagocytes can't make ROS
Term
Chediak Higashi
Definition
phagocytes can't make lysosomes
Supporting users have an ad free experience!