Insights & Discussion
Black pepper and its major component, piperine, can effectively regulate anemia of inflammation by reducing the overexpression of hepcidin, a hormone that controls iron levels.
The study involves a two-tier investigation, first in vitro, and then in vivo. In the laboratory, different black pepper extracts were interacted with a human liver cell line known as HepG2, and the one derived from methanol (BPME) showed the most promising result because it reduced the transcription of the hepcidin gene significantly. In addition to BPME, piperine was proven to almost entirely suppress hepcidin protein expression at specific concentrations.
In the subsequent in vivo experimentation, live mice were artificially induced with an elevated level of hepcidin through oil of turpentine injections. Then they were administered with BPME and piperine, the effects of which significantly reduced the enhanced hepcidin expression. The molecular interaction studies further suggest that piperine directly binds with SMAD1 and STAT3 proteins, the critical factors behind the overexpression of hepcidin.
The study found a demonstrable downregulation in hepcidin expression with the use of both the methanol extract of black pepper and the bioactive alkaloid piperine. These substances also interacted with some proteins to lower the overexpression of hepcidin initiated by inflammation. Additionally, there was a noticeable increase in iron bioavailability in the liver of treated test animals, pointing to the potential of these compounds to rectify anemia of inflammation. The findings posited black pepper as a possible therapeutic option for managing this anemic condition.
Discover Related Insights
Angelica Sinensis polysaccharide treatment has been found to effectively alleviate anaemia of chronic disease in rats by inhibiting inflammatory pathways and mobilizing iron.
2017 Oxidative Medicine and Cellular Longevity Acidic Polysaccharide from Angelica sinensis Reverses Anemia of Chronic Disease Involving the Suppression of Inflammatory Hepcidin and NF-κB Activation Wang K, Wu J, Cheng F, Huang X, Zeng F, Zhang Y
Experimental Study Anaemia Dang Gui Hepcidin
The study utilized both HepG2 cells and rats suffering from Anemia of Chronic Disease (ACD) to assess the therapeutic efficacy of Polysaccharide. The cells and rats were administered the Polysaccharide, and the researchers observed its impact on two inflammatory pathways: the IL-6/STAT3 and BMP/SMAD.
The Polysaccharide administration showed significant effects, inhibiting inflammatory hepcidin in both the cell sample and the rat population. Furthermore, in the rats, the introduction of the polysaccharide triggered an increase in ferroportin expression, which enabled iron to be transported from the liver and spleen, leading to increased serum iron levels. This also led to an elevation of serum EPO and a general relief from the anemia symptoms. Additionally, the treatment inhibited the NF-B p65 activation via the IB kinases-IB pathway, leading to a reduction in interleukin-6 and TNF- secretion - both of which are known to inhibit erythropoiesis. Hence, the study provides evidence for the potential use of polysaccharide as a treatment option for anemia of chronic disease.
Black soyabean seed coat extract significantly decreases hepcidin expression, leading to improved iron metabolism and potential treatment for iron-deficiency anaemia.
2014 British Journal of Nutrition Black soyabean seed coat extract regulates iron metabolism by inhibiting the expression of hepcidin Mu M, Wu A, An P, Du X, Wu Q, Shen X, et al.
Experimental Study Anaemia Black Soybean Hepcidin
The research employed both in vitro and in vivo experimental designs using cells treated with black soyabean seed coat extract (BSSCE) and 8-week-old male mice fed with a diet containing 2% BSSCE respectively. The study measured the effect of this extract on the expression of hepcidin, which is known to regulate iron homeostasis. In addition to this, its impact on splenic iron concentrations, serum iron concentrations and the phosphorylation levels of specific proteins was assessed.
The study found that BSSCE effectively inhibited the expression of hepcidin in both the in vitro and in vivo investigations. The mice given a diet containing BSSCE showed a decrease in hepatic hepcidin expression and splenic iron concentrations, while at the same time, an increase was observed in serum iron concentrations. The BSSCE induced this change through a decrease in the phosphorylation of mothers against decapentaplegic homolog proteins. There were marked increases in erythrocyte counts, hemoglobin concentrations, and hematocrit values in the test mice, indicating improved iron metabolism. This suggest that black soyabean extract has potential in regulating iron metabolism, presenting possibilities for the treatment of hepcidin-related diseases, including iron-deficiency anaemia.