path-inflamation Flashcards
pyknosis def
nuclear shrinkage
karyorrhexis def
nuclear fragmentation
apoptosis pathway in enbryogenesis
intrinsic
pro-apoptoic protein
Bax
anti-apoptoic protein
Bcl-2
released from mitochondria in apoptosis
cytochrome C
extrinsic apoptosis pathways
ligand receptor interactions (Fas)
immune cell (T cells releasing perforin and granzyme B)
inflammatory cell death
necrosis
irreverdable cell injuries
nuclear pyknosis, karyolisis, karyorrhexis caspase activation plasma membrane damage lysosomal rupture mitochondroal permeability
part of kidney suscpetible to inschemia/infarction
straight segment of PCT, thick ascending limb
part of colon suscpetible to inschemia/infarction
splenic flexure, rectum
causesof atrophy
reduced hormones (uterus/vagina) loss of innervation (motor neuron damage) loss of blood flow loss of nutrients high pressure (nephrolithiasis) occlusion of secretor ducts (CF)
cardinal signs of inflammation
rendess, pain, heat, swelling, and loss of function
mediates acute inflammation
neutophils, eosinophils, and antibodies
mediates chronic inflammation
mononuclear cells
outcomes of chronic inflammation
angiogenesism fibross, granuloma, scarring, amyloidosis
granuloma def:
nodular collection of epitheliod macrophages and giant cells
steps of leukocyte extravasation
rolling (E/P-selectin to sialyl Lewis)
tight binding (ICAM-1 to LFA integrin)
diapedesis (PECAM 1 to PECAM 1)
migration (C5a, IL-8, LTB4, and Kallikrein)
pathologies from free radical injury
retinopathy of prematurity bronchopulmonary dysplasia CCL4 --> fattyliver necrosis acetinophen OD iron overload reperfusion after anoxia (esp after thrombolytic therapy)
eliminates free radicals
catalase
superoxidase dismutase
glutathione peroxidase
Vitamins A, C, E
clot formation, high vessel permability and neutrophil migration into tissue
inflamatory wound healing
time in wound healing before macrophages show up
2 days
time frame of proliferative wound healing
2-3 days post injury
remodeling wound healing time frame
1 week after wound