25 - Cannabis Flashcards
What causes a shadow plaque to form in MS
Migroglia –> Lymphocytes –> Active rim –> Macrophages where areas of damage –> Demyelination –> Astrocytic scar OR oligodendrocyte precursor cells –>Shadow plaque
How many cannabinoid chemicals in cannabis
113
Where are CB1 receptors
Highly abundant in the nervous system and vascular, adipose tissues, GI tract
Where are CB2 receptors
Immune system, function not clear
Anandamide
Endocannabinoid
formed from multiple pathways from NAPE
Includes phospholipase A2
Higher affinity
2-Arachidonoyl glycerol
Endocannabinoid
Lower affinity
From arachidonic acid containing DAG by action of diacylglycerol lipase
Sativex
Used to treat spasticity
= Mix of THC and cannabidiol 1:1
Pleasant effects of cannabis
Euphoria
Happiness
Relaxation
Slow co-ordination
Unpleasant effects of cannabis
Increase appetite
Impair judgement
Paranoia
Worsen schizophrenia