chap 4 Flashcards

(23 cards)

1
Q

ANP (Atrium Natriuretic Peptide)

A

CML vascu : Agm. GMPc = Vasodilatation
Reins:
- Augm. Filtration glomérulaire = baisse réabs. Na et Cl = Natriurèse, diurèse
- Baisse Rénine = Baisse Angll = vasodilatation = baisse aldostérone
Cortex surrénalien : Baisse aldostérone = baisse Na/K ATPase = Augm. Natriurèse, Diurèse

=> Hypotension

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2
Q

BNP Brain Natriuretic Peptide

A

Sécrété par Ventricules
MArque atteinte ventricule cardiaque

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3
Q

CNP C-type Natriuretic Peptide

A

sécrété ds SNC

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4
Q

Peptide endogène GC-C

A

Guanyline, Uroguanyline, Lymphoguanyline

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5
Q

Entérotoxines thermostables

A

Escherichia coli, Enterobacter sp
L.GC-C = cGMP = sécrétion Cl et H20 = Diarrhée

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6
Q

Bleu de méthylène

A

Inhib GCs (cytopl) expérimentale

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7
Q

Fct GCs (cytoplasme)

A

Relaxation muscles lisses
Inhibition plaquettaire
Transmission neuronale
Immunomodulation

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8
Q

NO

A

Bronchiodilatation
Détresse respiratoire, HTA pulmonaire aigue

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9
Q

Trinitrine

A

Donneurs de NO, dérivés nitrés : Miment action NO
ANTIAGOREUX, VASODILATATEUR

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10
Q

Molsidomine

A

Donneurs de NO, dérivés nitrés : Miment action NO
ANTIAGOREUX

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11
Q

Riociguat, vériciguat

A

Activateurs GCs, famille “ciguat”
ANTI HTA pulmonaire
effets : Augm. affinité NO + activation directe GCs

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12
Q

Bases xanthiques : Caféine …

A

Inhibiteurs PDE, Augm. AMPc/GMPc
Effets :
- stimulation état de veille
- diminution sens fatigue
-vaso/bronchodilatation
- tachycardie

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13
Q

Papavérine

A

Relaxation CML = spasmes Tube digestif

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14
Q

théophylline + analogues synth

A

Inhib PDE
bronchiodilatation
ASTHME BPCO
analogues synt : aminophylline, pentoxifylline

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15
Q

Inhb. PDE 3

A

Milrinone
Augm. AMpc + GMPc
Inotrope + Vasodilatation
IC aigue

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16
Q

Inhb. PDE 4

A

Aprémilast
Anti-inflammatoire, bronchiodil = BPCO

17
Q

Inhb. PDE 5

A

sildénafil
vasodilatation corps caverneux = I érectile
hopital : HTAP

18
Q

PKG 1

A

Relaxation CML :
- active MLCP
- phospho IRAG => RIP3 inacti => Baisse Ca
- phospho Phospholambane => SERCA-2 actif=> Baisse Ca
- phospho canaux K = efflux K = hyperpolarisation = fermeture Cav1.1 => Baisse Ca

19
Q

PKG 2

A

Flux Intestinaux
Phospho Canal CFTR = Cl sort

20
Q

Canaux cation HCN

A

Cerveau + Coeur, +++ AMPc
Hyperpol = Canaux HCN actifs = Influx Na, K, Ca = Augm. courant If = Augm. pente de dépoly diastolique = Augm. fréq cardiaque

21
Q

Canaux ioniques CNG

A

Cerveau, rétine, épithélium olfactif
AMPc + GMPC
Augm. AMPc/GMPc = Canaux CNG actifs = Influx Na, K, Ca

22
Q

Baisse AMPc et GMPc

A

Augm. PDE 2, 5, 6, 10, 11

23
Q

Augm. Ampc et GMPc