Introduction: Iron is an essential micronutrient that plays a crucial role in various biological processes. Previous studies have shown that iron supplementation is related to exercise performance and endurance capacity improvements. However, the underlying mechanisms responsible for these effects are not well understood. Recent studies have suggested the beneficial impact of iron supplementation on mitochondrial function and its ability to rescue mitochondrial function under adverse stress and rodents. Based on current knowledge, our study aimed to investigate whether the changes in exercise performance resulting from iron supplementation are associated with its effect on mitochondrial function.
Methods: In this study, we orally administered an iron-based supplement to rats for 30 consecutive days at a dosage of 0.66 mg iron/kg body weight and vitamin B6 at a dosage of 0.46 mg/kg.
Results: Our findings reveal that long-term iron supplementation, in combination with vitamin B6, led to less body weight gained and increased VO max in rats. Besides, the treatment substantially increased Complex I- and Complex II-driven ATP production in intact mitochondria isolated from gastrocnemius and cerebellum. However, the treatment did not change basal and succinate-induced ROS production in mitochondria from the cerebellum and skeletal muscle. Furthermore, the iron intervention significantly upregulated several skeletal muscle mitochondrial biogenesis and metabolism-related biomarkers, including PGC-1α, SIRT1, NRF-2, SDHA, HSL, MTOR, and LON-P. However, it did not affect the muscular protein expression of SIRT3, FNDC5, LDH, FIS1, MFN1, eNOS, and nNOS. Interestingly, the iron intervention did not exert similar effects on the hippocampus of rats.
Discussion: In conclusion, our study demonstrates that long-term iron supplementation, in combination with vitamin B6, increases VO max, possibly through its positive role in regulating skeletal muscle-specific mitochondrial biogenesis and energy production in rats.
is the etiologic agent of trichomoniasis, one of the most common non-viral sexually transmitted infections globally. Our previous work reported the role of phosphatidylinositol 4,5-bisphosphates (PIP) signaling in the actin-dependent pathogenicity of . This study further demonstrated that iron transiently regulated phosphatidylinositol-4-phosphate 5-kinase (PI4P5K) proteostasis and its complex formation with an active ADP ribosylation factor Arf220, facilitating co-trafficking to the plasma membrane, crucial for PIP production.
Background: Recent biomedical research has shown the unusual, multisystem effects of coronavirus disease 2019 in humans. One specific sequela of a primary severe acute respiratory syndrome coronavirus 2 infection is the reactivation of latent viruses in various tissues, such as Epstein-Barr virus. Epstein-Barr virus has been identified in many inflammatory gastrointestinal lesions, such as microscopic gastritides and colitides.
Purpose: Recently, a significant negative correlation has been found between vitamin D (VD) and metabolic associated fatty liver disease (MAFLD), suggesting a potential beneficial role of VD in preventing of MAFLD, while underscoring the importance of exploring its mechanisms.
Methods: The experiment comprised two parts: male C57BL/6J mice (6 weeks) were fed a high-fat diet (HFD) and intraperitoneally injected with vitamin D (VD) (1.68 IU/g/week) for 16 weeks.
Although parenteral iron is widely used to treat iron deficiency anemia (IDA), some side effects have been inadequately explored. Hypophosphatemia is becoming a well-documented, yet poorly understood, side effect of parenteral iron infusion, oftentimes causing serious and/or prolonged complications. In this article, we discuss the case of a 33-year-old female with IDA who suffered debilitating physical and mental symptoms of significant recurrent hypophosphatemia following a single standard dose of parenteral iron administration.
Anemia affects more than 269 million children globally, including 1.2 million children in the United States. Although anemia can present with numerous symptoms, children are most often asymptomatic at the time of diagnosis.
