Helicobacter Flashcards

1
Q

caractere generale

A

colonizeaza stomacul la polul luminal al cel epit gastrice

70-100% dintre pacientii cu gastrita, ulcer duodenal/gastric sunt infectati

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

cine este rezervorul

A

omul

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

cum se face trasnmiterea

A

fecal orala

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

caractere moroflogice

A
bacili gram-
flagel polar
foarte mobil - miscari de tirbuson
culturi tinere- aspect bacilar sau spiralat
culturi batrane- aspect cocoid
crestere si multiplicarea in cond microaerofile
temp = 30-37
nepsorulat 
necapsulat
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

caract biochimice

A
ureaza +
catalaza +
oxidaza +
nu reduce nitrati
nu fermenteaza si nu oxideaza carbohidrati 
degradreaza fermentativ Aa
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

caractere de cultura

A

se dezv pe medii de cult neselective si selective
cond microaerofile
umiditate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

virulenta si patogenitate

A

bacterii foarte mobile => patrund in startul de mucus gastric
produce ureaza => amoniac => neutralizeaza acidul gastric => leziuni ale cel epiteliale
LPS => lipdul A act mai putin ca endotoxina

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ce comp prezinta

A
protiena socului termin (PSTB) => amplifica efectul ureazei
superoxid dismutaza (neutr metabolitii de O2) si catalaza (neutr peroxizii) => protejeaza bact de fagocitoza
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

cum se face identificarea

A

testul ureazei respiratorii

dif antigenice ale H. pylori prin ELISA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

care este tratamentul

A

inhibitor de pompa de H => omeprazol

tetraciclina si metronidazol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly