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New Treatments for Anemia in Chronic Inflammatory Disorders

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Clinical Nutrition".

Deadline for manuscript submissions: closed (15 September 2021) | Viewed by 8290

Special Issue Editor


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Guest Editor
Institute of Biological Chemistry, Biocenter, Medical University of Innsbruck, 6020 Innsbruck, Austria
Interests: neopterin; tryptophan; kynurenine; analytical chemistry; biomarkers; immunobiochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Chronic inflammatory disorders are associated with an increased risk of anemia. Cytokines released during cell-mediated immune responses are capable of inhibiting bone marrow hematopoiesis, e.g., the pro-inflammatory cytokines interferon gamma (IFN-γ) and tumor-necrosis factor-a (TNF-a) inhibit the growth of erythroid precursor cells in vitro. The mode of action of these cytokines is probably associated with their antiproliferative property.

The decrease of serum iron and increase of storage iron appear to be consequences of the defense strategy of macrophages. Decreased serum iron correlates with decreased hemoglobin concentrations. Thus, the development of anemia seems likely to result from the altered iron metabolism induced by stimulated macrophages.

In the course of anti-tumor immune response, IFN-γ induces the enzyme indoleamine 2,3-dioxygenase (IDO1) to degrade tryptophan. Inflammation-mediated tryptophan catabolism along the kynurenine pathway is related to fatigue and anemia, to depression and a decreased quality of life in patients.

This Special Issue of Nutrients is focusing on the association between nutrition and new treatments for anemia in chronic inflammatory disorders. Authors are invited to submit their work, including original research, reviews, meta-research, and opinion papers, showcasing important issues governing nutrition and new treatments for anemia in chronic inflammatory disorders, e.g., are there possibilities to interfere with iron or tryptophan metabolism or supplementation with anti-inflammatory or antioxidant supplements to combat anemia development.

Prof. Dietmar Fuchs
Guest Editor

Manuscript Submission Information

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Keywords

  • Cancer
  • Cytokines
  • Hemoglobin
  • Hepcidin
  • Infection
  • Inflammation
  • Interferon-γ
  • Iron metabolism
  • Macrophages

Published Papers (1 paper)

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Review

29 pages, 2142 KiB  
Review
Physiology and Inflammation Driven Pathophysiology of Iron Homeostasis—Mechanistic Insights into Anemia of Inflammation and Its Treatment
by Lukas Lanser, Dietmar Fuchs, Katharina Kurz and Günter Weiss
Nutrients 2021, 13(11), 3732; https://doi.org/10.3390/nu13113732 - 22 Oct 2021
Cited by 41 | Viewed by 7641
Abstract
Anemia is very common in patients with inflammatory disorders. Its prevalence is associated with severity of the underlying disease, and it negatively affects quality of life and cardio-vascular performance of patients. Anemia of inflammation (AI) is caused by disturbances of iron metabolism resulting [...] Read more.
Anemia is very common in patients with inflammatory disorders. Its prevalence is associated with severity of the underlying disease, and it negatively affects quality of life and cardio-vascular performance of patients. Anemia of inflammation (AI) is caused by disturbances of iron metabolism resulting in iron retention within macrophages, a reduced erythrocyte half-life, and cytokine mediated inhibition of erythropoietin function and erythroid progenitor cell differentiation. AI is mostly mild to moderate, normochromic and normocytic, and characterized by low circulating iron, but normal and increased levels of the storage protein ferritin and the iron hormone hepcidin. The primary therapeutic approach for AI is treatment of the underlying inflammatory disease which mostly results in normalization of hemoglobin levels over time unless other pathologies such as vitamin deficiencies, true iron deficiency on the basis of bleeding episodes, or renal insufficiency are present. If the underlying disease and/or anemia are not resolved, iron supplementation therapy and/or treatment with erythropoietin stimulating agents may be considered whereas blood transfusions are an emergency treatment for life-threatening anemia. New treatments with hepcidin-modifying strategies and stabilizers of hypoxia inducible factors emerge but their therapeutic efficacy for treatment of AI in ill patients needs to be evaluated in clinical trials. Full article
(This article belongs to the Special Issue New Treatments for Anemia in Chronic Inflammatory Disorders)
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