At position fifteen, the amino acid histidine (His) is replaced with a modified amino acid called D-Phenylalanine (D-Phe)
Navrady LB, Wolters MK, MacIntyre DJ, Porteous DJ, Deary IJ, McIntosh AM et al (2018) Cohort profile: Stratifying Resilience and Depression Longitudinally (STRADL): a questionnaire follow-up of Generation Scotland: Scottish Family Health Study (GS:SFHS)
Additional work has proposed a possible connection to lipase activity, which could influence fat storage dynamics
Essential preparation steps include: Hand hygiene wash hands thoroughly with soap and water or use alcohol-based hand sanitiser Gather supplies B12 ampoule, sterile syringe and needle, alcohol wipes, sharps container, and cotton wool or gauze Check the medication verify the correct drug, strength, and expiry date