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Addictive Drugs
The effects of drugs on the body. (UC Davis NPB168)
34
Biology
Undergraduate 3
04/10/2013

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Term
CYTOCHROM P4-50
Definition

CYP P4-50 IS THE MOST COMMON ENZYME IN HEPATIC CELLS.

* 50% OF DRUGS CAN BE BROKEN DOWN BY CYP 450-3A4

*THIS IS VERY UNIQUE BECAUSE ENZYMES ARE VERY SPECIFIC

Term
PHASE 1 METABOLISM REACTIONS
Definition

OXIADATION

REDUCTION

HYDROLYSIS

Term
PHASE 2 METABOLISM REACTIONS
Definition

CONJUGATION REACTIONS

*CAN ADD A SMALL IONIC COMPOUND TO DRUG IN ORDER TO INCREASE THE MOLECULTES PERMEIABILITY AND INCREASE THE LIKELIHOOD OF DRUG RELEASE FROM THE BODY

Term
DEFINE METABOLIC INDUCTION
Definition

WHEN A DRUG INCREASES THE ACTIVITY OR AVAILABILITY OF HEPATIC ENZYMES

*THE PHARMOCOLOGICAL EFFECT IS REDUCED

Term
DEFINE METABOLIC INHIBITION
Definition

THE DRUG CAUSES A DECREASE IN THE ACTIVITY OR AVAILABILITY OF HEPATIC ENZYMES

*PHARMOLOGICAL EFFECT IS INCREASED

Term
PATHWAY OF FIRST PASS METABOLISM
Definition

TOLERATE ACIDITY OF GI TRACT

CROSS CELL OF GI TRACT LINING

PASS THROUGH LIVER (CYP450)

SYSTEMIC CIRCULATION

Term
DEFINE DEPOT BINDING
Definition
WHEN THE BINDING OF A DRUG TO A TISSUE RESULTS IN NO EFFECT
Term
DEFINE DRUG TOLERANCE
Definition
1. STATE OF DECRESED RESPONSIVENESS TO A DRUG
Term
WHAT ARE THE TWO COMPONENTS OF DRUG TOLERANCE
Definition

PHYSICAL MECHANISM-METABOLIC TOLERANCE:INDUCTION LEADS LESS BIO-AVAILABILITY OF DRUG AND A NEED OF INCREASED DOSAGE

 

PHARMOCOLOGICAL TOLERANCE-THEINTERACTION BETWEEN THE DRUG AND TISSUE WHICH YIELDS A RESULT.

Term
DEFINE DRUG DEPENDENCE
Definition

THE APPEARANCE OF UNPLEASANT SYMPTOMS UPON REMOVAL OF THE DRUG

 

ALSO CALLED ABSITNENCE SYNDROM OR WITHDRAWL

Term
DEFINE PHARMOCODYNAMICS
Definition
THE INTERACTION OF A DRUG WITH TARGET TISSUE WHICH RESULTS IN A REACTION
Term
AGONIST DRUG
Definition

ARE A TYPE OF DRUG THAT BIND TO A RECEPTOR AND INITIATE AN ACTION OR EFFECT.

AGONIST DRUGS CAN BIND TO NEUROTRANSMITTER RECEPTORS AS WELL

Term
ANTAGONIST DRUG
Definition

A DRUG WHICH BINDS TO A RECEPTOR BUT CANNOT INITIATE AN ACTION OR EFFECT - THIS DOES NOT MEAN THE DRUG HAS NO EFFECT, SIMPLY THAT THE EFFECT MUST TAKE PLACE AT A DIFFERENT LOCATION

 

ANTAGONIST DRUGS CAN BIND TO NEUROTRANSMITTER RECEPTORS AND INHIBIT THE EFFECT OF THAT RECEPTOR.

Term
TYPE OF ANTAGONIST DRUGS (2)
Definition
  1. COMPETIVE ANTAGONIST DRUGS CAN BIND TO A COMMON RECEPTOR IN ORDER TO INHIBIT A REACTION. THIS RESULTS DECREASE POTENCY OF THE DRUG (REQUIRED INCREASE OF DOSAGE FOR SAME RESPONSE).
  2. NON-COMPETITIVE ANTAGOSIST DRUGS BINDS TO THE RECEPTOR AND CAUSES A CONFORMATION CHANGE SO THAT THE INDOGENOUS LIGAND CAN NO LONGER BIND TO THE RECEPTOR. THIS RESULTS IN A DECREASE IN THE POTENCY AND EFFICACY IN THE DRUG (REQUIRED INCREASE OF DOSAGE FOR SAME RESPONSE)
Term
PHYSIOLOGICAL ANTAGONISM
Definition

MIXING AN UPPER AND A DOWNER SO THAT THE NET EFFECT IS DECREASED

 

I.E. HEROINE AND COCAINE

Term

ADDITIVE EFFECT

 

(DRUG INTERACTION)

Definition
UPPER AND AN UPPER (OR DOWNER AND DOWNER) WHICH CAN BE ADDED TOGETHER FOR A MUCH STRONGER NET EFFECT.
Term

POTENTIATION

 

(DRUG INTERACTIONS)

Definition

WHEN TWO DRUGS ARE COMBINED AND THE RESULTANT EFFECT IS DIFFERENT   THAN THE EFFECTS OF THE INDIVIDUAL DRUGS.

 

I.E. (MADE UP) LAXITIVE AND ADVIL, BUT THEY CANCELLED EACH OTHER OUT SO YOU STILL CAN'T SHIT AND YOU HAVE A HEADACHE.

Term
SOMA
Definition
another name for the cell body of a neuron
Term
What are the two types of communication between neurons
Definition
chemical
electrical
Term
What is the chemical gradient for K+ and Na+ (qualitative)
Definition
More Na+ inside - wants to move out
More K+ outside - wants to move in
Term
Adenylyl cyclase
Definition
adenylyl cyclase>controls ATP>controls cAMP>conttols cAMP dependent protein kinases
Term
phospholipase C
Definition
phospholipase C>controls hydrolysis of phosphoinositides which releases IP3 and DAG

IP3 leads to an increase Ca+ concentration inside the cell which leads to the activation of calmodulin protein kinases

DAG controls protein kinase C
Term
narcotic analgesics
Definition
opiates
Term
Active ingredients in opiates
Definition
morphine~10%
coedine~0.5%
Term
An increase in acetyl groups results in...
Definition
decrease in permeability which allows for the drug to stay in the body for longer periods of time i.e. heroine
Term
morphine, coedine and heroine are this type of drug...
Definition
agonist opiate
Term
naloxe is this type of drug...
Definition
antagonist opiate
Term
Forms of heroine (2)
Definition
black tar
powder
Term
venous sclerosis
Definition
the degradation of veins via the injection of heroine
Term
ways in which heroine can be administered (4)
Definition
snorting
injection
oral
inhaled
Term
What are the pharmocological effects of heroine on the central nervous system (6)
Definition
drowsiness
decreased sensitivity
decreased anxiety
muscle relaxant
pain relief
decreased concentration
Term
What are the pharmocological effects of heroine on the autonomic nervous system (3)
Definition
suppression of cardiovascular and respiratory system
constriction of pupils
nausea
Term
What ways of administration lead to a "rush" via heroine?
Definition
IV
inhalation
Term
What are the pharmocological effects of heroine on the GI Tract
Definition
decreased muscle activity of the stomach and intestines
slower passage of contents - which allows for more water absorption, often leads to constipation
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