Iron Mgd Complex
Iron Mgd Complex - Related Videos
03:56
Caco-2 Cell Bioassay: An In Vitro Method for Measuring Iron Bioavailability in Complex Food Sources
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2025
This video demonstrates an in vitro technique to assess iron bioavailability in complex food sources. The technique combines the simulation of human digestion along with iron uptake by differentiated Caco-2 cells. Intracellular ferritin formation acts as a marker for cellular iron uptake.
08:45
Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
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Cited by 3 •
2022
This article demonstrates how to prepare and administer transferrin-bound nonradioactive isotopic iron for studies of iron transport in mouse pregnancy. The approach for quantifying isotopic iron in fetoplacental compartments is also described.
04:40
Dynamic Light Scattering Analysis for the Determination of the Particle Size of Iron-Carbohydrate Complexes
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Cited by 2 •
2023
Dynamic light scattering (DLS) has emerged as a suitable assay for evaluating the particle size and distribution of intravenously administered iron-carbohydrate complexes. However, the protocols lack standardization and need to be modified for each iron-carbohydrate complex analyzed. The present protocol describes the application and special considerations for the analysis of iron sucrose.
03:06
Culturing Mycobacterium tuberculosis Under Iron-Limited Conditions
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2025
Source: Gupta, S., et al. Isolation and Characterization of Extracellular Vesicles Produced by Iron-limited Mycobacteria. J. Vis. Exp. (2019)This video demonstrates the procedure for culturing Mycobacterium tuberculosis under iron-limited conditions to induce iron stress and promote the secretion of siderophores that support bacterial survival.
06:37
Staphylococcus aureus Growth using Human Hemoglobin as an Iron Source
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Cited by 31 •
2013
Here we describe a growth assay for Staphylococcus aureus using hemoglobin as the sole source of available nutrient iron. This assay establishes the role of bacterial factors involved in hemoglobin-derived iron acquisition.
FAQs
Nitric oxide coordinates with the iron center, producing an iron-nitrosyl-MGD species with paramagnetic properties. Paramagnetism means the complex contains unpaired electrons that respond to a magnetic field. Electron paramagnetic resonance detects this response as a characteristic signal, allowing NO-related chemistry to be distinguished from the unbound coordination compound in biological samples.
The paramagnetic state provides the physical basis for measurement by electron paramagnetic resonance spectroscopy. When NO becomes associated with the iron center, the resulting complex generates a detectable magnetic-resonance signal. This conversion links a molecular binding event to an instrumental readout, making it possible to investigate NO formation rather than relying only on indirect biological effects.
Measurements from the resulting iron-nitrosyl-MGD signal can help identify and quantify NO generation in biological material. Interpreted in context, these measurements support investigations of redox signaling, enzyme activity, inflammation, and cardiovascular physiology. The approach is therefore useful for connecting NO production with broader cellular or tissue-level processes.
A basic workflow involves bringing the iron MGD complex into contact with a biological sample, allowing NO capture to produce the iron-nitrosyl-MGD species, and examining the sample by electron paramagnetic resonance spectroscopy. The measured characteristic signal then provides evidence for NO generation and can support quantitative comparisons between biological conditions.
The approach can be applied to cells, tissues, and other biological samples in which researchers need to examine NO generation. Using the same capture-and-detection principle across these sample types supports comparisons between cellular and tissue settings. It also allows NO-related measurements to be connected with biological processes occurring at different levels of organization.
In inflammation research, the signal can help assess NO generation in relation to immune and cellular stress processes. In cardiovascular studies, it supports examination of NO-associated signaling relevant to vascular regulation. Because the complex converts NO capture into an EPR measurement, researchers can relate detected production to these physiological or stress-related contexts.