期刊
BIOMETALS
卷 33, 期 2-3, 页码 159-168出版社
SPRINGER
DOI: 10.1007/s10534-020-00236-2
关键词
Lactoferrin; Iron homeostasis; Inflammation; Quality control; Anemia of inflammation; Hereditary thrombophilia
Milk derivative bovine Lactoferrin (bLf), a multifunctional glycoprotein available in large quantities and recognized as safe, possesses high homology and identical functions with human Lactoferrin. There are numerous food supplements containing bLf which, however, can vary in its purity, integrity and, consequently, functionality. Here, we report on a clinical trial where bLf (100 mg two times/day) was orally administered before (Arm A) or during meals (Arm B) to pregnant women with hereditary thrombophilia and suffering from anemia of inflammation. A significant increase of the number of red blood cells (RBCs), hemoglobin (Hb), total serum iron (TSI) and serum ferritin (sFtn) levels, along with a significant decrease of interleukin-6 were detected after 30 days in Arm A, but not in Arm B, thus letting us to hypothesize that bLf inefficacy could be related to its degradation by digestive proteases. To verify this hypothesis, bLf was incubated in gastric juice collected before or after meals. An undigested or a digested profile was observed when bLf was incubated in gastric juice sampled before or after meals, respectively. These results can explain the beneficial effect observed when bLf is administered under fasting conditions, i.e. in the absence of active proteases.
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