Voltage-Dependent Cation Channel Screening for Olfaction Masking
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Solution Overview
Problem
Current methods for evaluating the effectiveness of olfaction-masking agents are subjective and lack objective measures, making it difficult to identify substances that inhibit olfactory sensitivity effectively.
Innovation Solution
A method involving the use of a substrate with voltage-dependent cation channels to objectively evaluate substances by measuring their inhibitory effect on electrical activity, correlating this with olfaction-masking efficacy, using techniques such as patch-clamp methods and sensory tests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If subjective sensory tests are used to evaluate olfaction-masking agents, then evaluation can be performed, but the measurement precision and objectivity are insufficient
Solution Approach 1:
The patent introduces voltage-dependent cation channels as an intermediary target to bridge the gap between subjective olfaction masking and objective measurement. By measuring the inhibitory effect on these channels, which are known to be involved in olfaction signaling, the patent achieves objective quantification of olfaction-masking activity without requiring complex behavioral assays.
Solution Approach 2:
The patent replaces subjective sensory evaluation (which relies on human perception and is difficult to quantify) with an objective electrophysiological measurement system. The voltage-dependent cation channel inhibition can be measured using patch-clamp techniques, providing precise, quantifiable data about the mechanism of olfaction masking.
2Reliability
If voltage-dependent cation channel inhibition is used as a mechanism, then olfaction masking can be achieved, but the involvement of this mechanism in vivo is unclear
Solution Approach 1:
The patent uses isolated olfactory receptor cells as a simplified model system that copies the essential features of in vivo olfaction signaling. By measuring voltage-dependent cation channel inhibition in these isolated cells, the patent can assess the potential of compounds to mask olfaction in vivo without the complexity of whole-organism assays.
Solution Approach 2:
The patent segments the olfactory system into isolated receptor cells for controlled measurement. This allows specific focus on the voltage-dependent cation channel component while maintaining the essential signaling pathway. The segmented approach enables precise measurement of channel inhibition without the confounding variables present in whole-organism systems.
3Adaptability or versatility
If CNG channels are used as the target, then olfaction can be regulated, but the measurement of channel activity is complex
Solution Approach 1:
The patent extracts the voltage-dependent cation channel component from the complex CNG channel signaling pathway. By focusing measurement on this specific channel type, which is downstream of CNG channel activation, the patent simplifies the measurement process while still capturing essential olfaction regulation information.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for the identification of substances with higher voltage-dependent cation channel-inhibitory effects, which are found to have stronger olfaction-masking properties, providing an objective and effective screening method for olfactory sensitivity suppression.
Implementation Method 1
the olfactory receptor cells is depolarized. As a result, voltage-dependent channels are opened, and action potentials are generated
Implementation Method 2
ions influx through the activated channel, whereby the olfactory receptor cells is depolarized
Data Source
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AI summary
To provide a method for objectively evaluating or screening to identify a substance which is capable of suppressing or regulating olfaction. A method of evaluating or screening to identify an agent for suppressing olfactory sensitivity, including adding a test substance to a substrate having a voltage-dependent cation channel and evaluating or selecting a substance that inhibits an electrical activity caused by the cation channel. A method of evaluating or screening to identify an agent for suppressing olfactory sensitivity, including the following steps (1) to (4): (1) adding a test substance to a substrate having a voltage-dependent cation channel; (2) measuring electrical activity caused by the voltage-dependent cation channel; (3) comparing the electrical activity measured in step (2) with the corresponding electrical activity in a control group; and (4) evaluating or selecting the test substance that inhibits the electrical activity as an agent for suppressing olfactory sensitivity, based on the results obtained in step (3).