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Schedule: Daily subcutaneous injections for 812 weeks (extend to 16 weeks if research goals require)

The differential equation for the concentration of cytosolic cysteine (Cys) is straightforward: The first term on the right is the production of cysteine from cystathionine (Cysta) by CGTL and the second term is the import of cysteine into the cell, which depends on the concentration of cysteine in the blood ([bCys])

Last reviewed: June 8, 2026 Last updated: June 8, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations

These injections are not licensed medicines in the UK, lack MHRA marketing authorisation, and fall outside conventional NHS prescribing

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