Ghrelin is primarily secreted by stomach and may be involved in the GH response to fasting and food intake
Patients who transition from gastric banding to other bariatric procedures such as sleeve gastrectomy or Roux-en-Y gastric bypass should be aware that these carry a higher risk of B12 and other micronutrient deficiencies due to their malabsorptive components, and monitoring should be intensified accordingly
2.3.2 Digit backward Participants were given a sequence of numbers as in the Digit Span, but they had to mention the sequence in reverse order (e.g., sequence: 135, individuals correct answer: 531)
Bolaman Z, Kadikoylu G, Yukselen V (2003) Oral versus intramuscular cobalamin treatment in megaloblastic anemia: a single-center, prospective, randomized, open-label study
Folate metabolism and requirements