ArticleMolecular and cellular biochemistry2010
Nitric Oxide contributes to the regulation of iron metabolism in skeletal muscle in vivo and in vitro.
Article in Molecular and cellular biochemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 6 citations in OpenAlex.
- Identification of three mechanistic pathways for iron-deficient heart failure.European heart journal · 2024Review
- Regular Physical Exercise Modulates Iron Homeostasis in the 5xFAD Mouse Model of Alzheimer's Disease.International journal of molecular sciences · 2021Article
- Ovine uterine space restriction alters placental transferrin receptor and fetal iron status during late pregnancy.Pediatric research · 2013Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
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Abstract
Nitric Oxide (NO) plays an important role in iron redistribution during exercise, while its molecular regulatory mechanism is still not clear. Our present studies were to investigate the effects of NO on iron metabolism and to elucidate the regulatory mechanism of iron transport in skeletal muscle both in vivo and in vitro. One group of male Wistar rats (300 +/- 10 g) were subjected to an exercise of 30 min on a treadmill for 5 weeks (exercise group, EG, 6 rats) and the other one was placed on the treadmill without running (control group, CG, 6 rats). The cultured L6 rat skeletal muscle cells were treated with either 0.5 mM SNAP (NO donor) or not for 24 h, and their iron release and intake amount were examined by measuring radiolabelled (55)Fe. The results showed: (1) The NO content (CG, 1.09 +/- 0.18 micromol/g vs. EG, 1.49 +/- 0.17 micromol/g) and non-heme iron in gastrocnemius (CG, 118.35 +/- 11.41 microg/g vs. EG, 216.65 +/- 11.10 microg/g) of EG were significantly increased compared with CG. (2) The expression of DMT1 (IRE) and TfR1 of EG was increased. (3) The iron intake was increased in L6 cells treated with SNAP (P < 0.01). (4) Western blot results showed the protein level of both TfR1 and DMT1 (IRE) in SNAP cells were up-regulated, while the expression of FPN1 was down-regulated (P < 0.05). The data suggested that the induced elevation of NO level by exercise lead to the up-regulation of both TfR1 and DMT1 (IRE), which in turn increasing the iron absorption in skeletal muscle.
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