Brain Tissue Oxygenation
Brain Tissue Oxygenation - Related Videos
04:02
Measurement of Oxygen Consumption Rate in Acute Mouse Brain Slices
0 Views •
2025
Source: Zhi, L. et al., Measurement of Oxygen Consumption Rate in Acute Striatal Slices from Adult Mice. J. Vis. Exp. (2022).This video demonstrates how to measure mitochondrial oxygen consumption rate (OCR) in mouse striatal brain slices. It details the steps for preparing the tissue plate and sensor cartridge, loading them into the flux analyzer, and explains the cellular processes underlying OCR patterns.
11:35
Dual-mode Imaging of Cutaneous Tissue Oxygenation and Vascular Function
0 Views •
Cited by 16 •
2010
A dual-mode imaging system was developed for non-contact assessment of cutaneous tissue oxygenation and vascular function.
10:21
Metabolic Support of Excised, Living Brain Tissues During Magnetic Resonance Microscopy Acquisition
0 Views •
Cited by 2 •
2017
The current protocol describes a method by which users can maintain viability of acute hippocampal and cortical slice preparations during the collection of magnetic resonance microscopy data.
02:37
Frozen Mouse Brain Tissue Sectioning: A Procedure to Obtain Thin Frozen Tissue Sections from Frozen Murine Brain Tissue
0 Views •
2023
In this video, we demonstrate the sectioning of a frozen mouse brain tumor tissue using a cryostat. The frozen brain tissue sections so obtained are stored at low temperatures until further analysis.
08:58
Cerebral Blood Oxygenation Measurement Based on Oxygen-dependent Quenching of Phosphorescence
0 Views •
Cited by 28 •
2011
We present an experimental procedure for measuring the partial pressure of oxygen (pO2) in cerebral vasculature based on oxygen-dependent quenching of phosphorescence. Animal preparation and imaging procedures were outlined for both large field of view CCD-based imaging of pO2 in rats and 2-photon excitation based imaging of pO2 in mice.
FAQs
Brain tissue oxygenation depends on the balance between oxygen delivery and neural metabolic demand. Although oxygenated blood reaches the brain, tissue levels may fall when cerebral blood flow cannot meet the needs of active cells. Conversely, sufficient delivery supports mitochondrial respiration and cellular energy production, making this balance important for interpreting changes in brain function.
Hemoglobin acts as the blood-based carrier that transports oxygen through the cerebral circulation. Its delivery brings oxygen close to capillaries, where the molecule can cross into neural tissue. This connects systemic oxygen transport and cerebral blood flow with the local availability required by neurons and glial cells for energy production.
Diffusion across capillary walls is the transition between vascular delivery and cellular oxygen use. Oxygen must leave the blood and enter the surrounding neural tissue before neurons and glial cells can use it. This step helps explain why local tissue measurements provide information about oxygen availability beyond the presence of oxygen in circulating blood.
Low tissue oxygen levels can signal that oxygen supply is insufficient for the needs of neural tissue. Possible concerns include hypoxia, impaired cerebral perfusion, or a mismatch between delivery and metabolic demand. Identifying this imbalance is valuable because it highlights tissue that may not be receiving adequate support for normal cellular energy production.
Measurements provide information about cerebral physiology by showing whether neural tissue has adequate oxygen availability. Researchers and clinicians can use them to identify hypoxia or impaired perfusion and to follow changes in vulnerable tissue. The results complement broader evaluations of brain function by focusing on the relationship between oxygen supply and local tissue needs.
Stroke and traumatic brain injury are important contexts because affected brain regions may be vulnerable to inadequate oxygen delivery or perfusion. Assessing tissue oxygenation helps investigators and clinicians examine these physiological disturbances and monitor threatened tissue. This information can support strategies intended to protect vulnerable regions and improve understanding of neurological injury.