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INIBITORI DELLACETILCOLINESTERASI (AChE) 1) reversibili, legame non covalente.

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Presentation on theme: "INIBITORI DELLACETILCOLINESTERASI (AChE) 1) reversibili, legame non covalente."— Presentation transcript:

1 INIBITORI DELLACETILCOLINESTERASI (AChE) 1) reversibili, legame non covalente

2 INIBITORI DELLACETILCOLINESTERASI (AChE) 2a) reversibili, legame covalente

3 INIBITORI DELLACETILCOLINESTERASI (AChE) 2b) reversibili, legame covalente

4 DFP (DIIDROPROPILFLUOROFOSFATO) PARATHION MALATHION CLORPIRIFOS INIBITORI DELLACETILCOLINESTERASI (AChE) 3a) irreversibili: insetticidi organofosforici

5 INIBITORI DELLACETILCOLINESTERASI (AChE) 3b) irreversibili, gas nervini

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9 Anti-AChR antibodies cross-link AChRs Cross-linked AChRs are endocytosed more rapidly than normal Internalized AChRs are degraded Fewer AChRs remain on the Post-Junctional membrane RESULT: Less efficient neuromuscular transmission

10 Complement binds to the Antibody-AChR complex Membrane-attack complex (MAC) forms on the membrane The post-junctional membrane is damaged Fewer post-synaptic membrane folds Reduced numbers of AChRs Widened synaptic cleft RESULT: Less efficient neuromuscular transmission

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