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Complete
pharmacology notes
| Question | Answer |
|---|---|
| Agonist | Brings about effect after binding to a receptor. low affinity. high efficacy |
| Types of agonist | -Partial agonist -Inverse agonist |
| Acetylcholin agonist | -Neostigmine -Physostigmine |
| Acetylcholin antagonist | -Curare -Atropine |
| Types of cholin transporters | -High affinity -Low affinity |
| High affinity cholin transporter | Dependent on ATP |
| Low affinity cholin transporter | Dependent on extra-cellular cholin concentrations |
| Break down of Acetylcholin | Acetylcholinesterases [ACHE] |
| Synthesis of Acetylcholin | Cholin acetyltransferases [CHAT] |
| Precursor of Acetylcholin | -Cholin -Acetyl CoA |
| Inactivation of cholin transporters | Hemicholinium |
| SNARE proteins | Enable and facilitate the release of the ACH from the vesicles,by enabling the vesicle to bind to the membrane |
| Botulinum toxin [botox] | breaks down SNARE proteins |
| Inhibit the release of ACH from the vesicles | Botulinum toxin |
| COX [cyclo oxyginase] enzyme inhibitor | NSAIDS |
| COX 1 | -Homeostasis -protective mucus for lining the stomch |
| COX 2 | -Involved in inflammation |
| NSAIDs | -Anti inflammation -Antipyretic -Analgesic |
| LOX enzyme [lysyl oxidase] product | leukotrienes |
| Leukotrienes | Potent broncho constrictors |
| LOX antagonists | -Montelukast -Enfirlukast |
| types of NSAIDs and their examples | -Salicylic acid:acetyl salicylic acid [aspirin] -P amino phenol:[paracetamol] -Indol -Cnolics:[Oxicams] |
| Types of Cytokines | -Interleukines -Interferons -Tissue necrotic factor |
| Interleukines | Synthesised by T-lymphocytes and helper CD4 |
| Interferons | Released by cells which have been invaded by a bacteria. -have febril symptoms |
| Cytokines funtion | Intracellular communication |
| Inflammation mediators | -Breadykinin -Histamine -Prostaglandins -leukotrienes -cytokines -platelet activating factor |
| Platelet Activating Factor | involved in inflammation |
| Vaso dilation causes! | -decrease in blood pressure |
| Contraction of smooth muscles can lead to - | Broncho constriction |
| Prostaglandin analogues | Prostanoids |
| Prostanoids used in Termination Of Pregnancy[TOP] | -Gemeprost -Misoprost |
| Types of Prostaglandins | -PgH2 -PgI2 -Thromboxane A2 and B2 -PgE -PgF2 alpha |
| PgI2 | -Inhibits platelet aggregation -Dilator |
| PgF2 alpha | -Powerful uterine contractions -Potent broncho constrictor |
| Thromboxane A2 | -Vaso constictor |
| PgG2 | -Vaso dilator -GIT relaxation -ionotropic |
| Ionotropic | affects the force of muscular contraction |
| PgEp1 | -Broncho constrictor -Vaso constritor |
| PgEp2 | -Broncho dilator -caso dilator |
| Lipid derieved mediators | -Prostaglandins -Leukotrienes |
| Substrate for LOX and COX | Arachidonic acid |
| Lipokotien | Inhibits Phospho lipase A -stimulated by glucocortecoids |
| Types of Histamine receptors | -H1 -H2 -H3 |
| H1 antagonist | -Promethazine -Cyclizine |
| Motion sickness drugs | -Promethazine -Cyclizine |
| Cimetidine side effects | -Inhibits liver enzyme Cytochrome P450 |
| H2 antagonist | -Cimetidine -Ranitidine |
| Antihistamines have similar effects as- | Atropin |
| Atropin | Anti-cholinergic -Competitive antagonist |
| Angiotensin Converting Enzyme [ACE] | Breaks down breadykinin |
| ACE inhibitors | -Enalapril -Captopril |
| Histamine synthesized from | L-histadine |
| ACE inhibitors pharmacological effect | Decrease blood pressure,since breadykinins are vaso-dilators |
| Characteristics of inflammation | -swelling -pain -heat -redness -loss of function |
| Types of paralyzing agents | Non depolarizing agents Depolarizing agents |
| Non-depolarizing blockers | curariform agents |
| Curariform agents | D tubocurarine,Dimethyl tubocurarine |
| Non depolarizing agents | Do not cause any effect before paralysis |
| D tubocurarine analogus | Alcuronium,Puncuronium,Gallamine, Atracurium |