General Pathology Flashcards

1
Q

Apoptosis promoter

A
  • bcl - xs *
    Bax
    Bin
    P53
    Glucocorticoids
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2
Q

Apoptosis inhibitor

A

Bcl - XL
Bcl -2
mcl 1
Sex steroids

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3
Q

Apoptosis intrinsic pathway initiator

A

Cytochrome C
SMAC

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4
Q

Apoptosis both pathways effector

A

Caspase 3, and 7

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5
Q

Apoptosis extrinsic pathway initiator

A

FAS ligand
TRAIL Ligand

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6
Q

Apoptosis initiator caspases?

A

Caspase 8,9,10

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7
Q

Step ladder pattern seen in which process after cell injury

A

Apoptosis - due to DNA fragmentation

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8
Q

Smear pattern seen in which process after cell injury

A

Necrosis due to groups of cell bring destroyed

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9
Q

Leucotoxins mainly act by causing

A

Apoptosis
Also Necrosis but MAINly apoptosis

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10
Q

Coagulative Necrosis shows what kind of cellular appearance

A

Tomb stone Cells, nuclear death, cell membrane intact

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11
Q

Fibrinoid Necrosis seen in

A

Rheumatoid arthritis - pan aschoff nodules

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12
Q

AAT is due to which enzyme deficiency

A

Alpha 1 antitrypsin deficiency
: leads to protein accumulation in lungs and liver(site of a1at production) loss of enzyme production leads to Liver enlargemet, as lungs weaken

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13
Q

Cystic fibrosis pathophysiology

A

Cause -CTFR defect on chromosome 7, defect in transport of Na, sweat chloride, thick body secretions, sinus lungs mucus filled and have infections, gi obstruction,

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14
Q

Huntington disease is due to deficient

A

Huntingtin enzyme - leads to memory loss, lack of attention
•age 30 onwards is called = juvenile, seen in old age also, enlarged lateral ventricle on mri, difficult Co ordination, balance

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15
Q

Zenkers waxy degeneration is seen in

A

Skeletal muscle after infections with High grade fevers like Typhoid

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16
Q

Extracellular hyaline change is normal finding in

17
Q

Examples of dystrophic calcification (RATT)

A

Rheum arthritis
Atherosclerosis
Tb lymph node
Tumors - papillary tumor thyroid

18
Q

Metastatic calcification features

A

RAISED SERUM CALCIUM LEVELS
seen in living tissue
Seen in sarcoidosis. Multiple myeloma, renal failure,
Found in organ which lose acid to have alkaline medium = lungs, kidney, stomach!!

19
Q

SIRTUINS are responsible for what

A

Keeping Cells young

20
Q

List enzymatic antioxidants (3)

A

1.(SOD) Superoxide dismutase
2.Catalase
3.Glutathione peroxidase

21
Q

List of non enzymatic antioxidants

A

Vit e, albumin, transferin, cysteine, glutathione, cerruloplasmin

22
Q

Light microscopy fixative

A

10% neutral buffer formalin

23
Q

Electron microscopy fixative

A

Glutaraldehyde

24
Q

PAS stain stains what

A

Glycogen, fungus

25
Geimsa stain stains
Bone marrow
26
Safranin O stain
Mucin Cartilage Mast cells
27
Mast cell granules stain by
Toluidine blue stain
28
Inflammation is of 2 Types
Cellular Vascular
29
Vascular changes of inflammation (4)
1st change : Vasoconstriction - transient (dolor) 2nd change : Vasodilation (rubor, calor seen) 3.*Hallmark change* : Increased cell permeability due to endothelial cell separation (births exudate in venules) 4th change : Stasis
30
Cellular changes of inflammation [extravasation]
Margination Rolling Adhesion Diapedesis Chemotaxis Activation