Inflammatory Disorders of the Stomach Flashcards
gastritis can either be ___ or ___
acute or chronic
in acute gastritis - They have either_____ something or have ____ injury (alcohol, NSAIDS) or systemic problems have put stress on the stomach. The stomach responds to ___ sensitively with inflammation
They have either ingested something or have chemical injury (alcohol, NSAIDS) or systemic problems have put stress on the stomach. The stomach responds to stress sensitively with inflammation
what are the causes of chronic gastritis? 3
abc
autoimmune
bacterial
chemical
______ is the rarest cause of chronic gastritis
autoimmune
what are the characteristics of autoimmune and what is it referred to as clinically?
Vitamin B12, macrocytic anaemia and a form of gastritis
penriscious anaemia
autoimmune is associated with circulating antibodies to ___ ___ cells and is an example of ___ ___ autoimmunity
gastric parietal, organ specific
what are the antibodies in autoimmune chronic gastritis?
anti-parietal and anti-intrinsic factor
what happens to the stomach pathologically in autoimmune chronic gastritis
You get atrophy and intestinal metaplasia in the body of the stomach
with autoimmune chronic gastritis there is an increased risk of ____
malignancy
what causes anaemia in autoimmune gastritis?
The loss of parietal cells and intrinsic factor deficiency causes anaemia
what is the most common cause of chronic gastritis?
H.Pylori
The bacteria - H.P- do not invade the body - they just sit within the body cavity and inhabit a niche between the _____ __ surface and ___ ____
The bacteria do not invade the body - they just sit within the body cavity and inhabit a niche between the epithlial cell surface and mucous barrier
what do the bacteria look like histologically?
gram negative curvillinear rod
H P It excites an early acute inflammatory reaction leading to _____ infiltration. If this is not cleared then you get chronic active inflammation
neutrophil
which interleukin is critical in H P gastritis?
IL8