The in vivo contour plot. An improved representation of stimulus experiments

Area of Science:

• Physiology
• Biophysics
• Biochemistry

Background:

• Stimulus-response experiments generate complex datasets.
• Accurate visualization is crucial for interpreting physiological and metabolic changes.

Purpose of the Study:

• To introduce and demonstrate the efficacy of the in vivo contour plot.
• To showcase its application in diverse physiological and biochemical contexts.

Main Methods:

• Development of the in vivo contour plot technique.
• Application to four distinct experimental models: rat heart necrosis, mouse liver anoxia, Langendorff heart ischemia (with/without Ca antagonist), and cardiac cycle internal stimulus.
• Visualization of spectral parameters including line intensities, positions, and linewidths, along with their time derivatives.

Main Results:

• The in vivo contour plot provides a superior representation of experimental data compared to conventional methods.
• Successfully visualized dynamic changes in metabolite concentrations and pH across various biological systems.
• Demonstrated the plot's ability to capture subtle variations and time-dependent alterations in metabolic profiles.

Conclusions:

• The in vivo contour plot is a powerful tool for analyzing complex data from stimulus experiments.
• It offers comprehensive insights into metabolic and physiological responses in vivo.
• This visualization method significantly advances the interpretation of spectroscopic data in biological research.