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Pooled protein dialysate concentration was determined by UV spectroscopy, portioned into 120 uL aliquots with 20% final glycerol concentration, flash-frozen in liquid nitrogen, and stored at 70 C

[PMC free article: PMC4918252] [PubMed: 27471718] 251

Vegans or vegetarians sometimes have lower B12 levels because plant based foods lack substantial amounts of this nutrient

Compliance matters for outcomes, and simpler protocols generally produce better adherence

Typical presentation includes: Localized redness: A circular or irregular area of pink to red discoloration, usually 1-3 cm in diameter, centered around the injection point Swelling: Mild elevation of the skin with a firm or slightly boggy texture, reflecting subcutaneous fluid accumulation and inflammation Tenderness: Discomfort ranging from mild sensitivity to moderate pain when the area is touched or pressed Pruritus: Itching sensation that may be mild to moderate, occasionally accompanied by a desire to scratch Warmth: The affected area may feel slightly warmer than surrounding skin due to increased blood flow Less commonly, patients may notice small bruises (ecchymoses) or minor bleeding at the injection site, particularly if a small blood vessel was inadvertently punctured during injection