The article provides information on gastric bypass surgery which was developed in the 1960s based on observations that partial stomach removal for ulcers can lose weight. The cost of the surgery is $25,000. Roux-en-Y, a refined proced...
At the low pH of the stomach, proteolytic digestion by pepsin occurs, which is the prerequisite for cobalamin release. Once released, cobalamin rather than the gastric intrinsic factor (IF) binds preferentially to haptocorrin (R-protein), a high-affinity cobalamin-binding protein in the saliva ...