ROS Detection in Semen Using Thickening Agent Gel
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Solution Overview
Problem
Current methods for determining oxidative stress in semen samples are expensive, complex, and lack standardization, making it difficult to routinely assess the presence of reactive oxygen species (ROS) in andrology laboratories.
Innovation Solution
A method involving contacting a cellular population with a thickening agent and a ROS indicator, followed by gelling and detection of a detectable compound on a solid support, allows for the identification of cells containing ROS, using isotonic conditions and specific compounds like NBT to prevent cell aggregation and enhance detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current methods for determining oxidative stress are used, then measurement precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent introduces a thickening agent as an intermediary substance that modifies the physical state of the semen sample, causing cell aggregation and immobilization. This intermediary enables the detection method to work effectively by concentrating cells in a gel matrix, allowing standard microscopy to detect ROS indicators without requiring complex specialized equipment.
Solution Approach 2:
The patent changes the physical parameter of the sample by adding a thickening agent that alters viscosity and state of matter. This parameter change transforms the liquid semen sample into a gel-like matrix, immobilizing cells and enabling them to be observed and detected using simple optical microscopy instead of complex analytical instruments.
2Measurement precision
If current methods for determining oxidative stress are used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The thickening agent serves as a mediator that simplifies the detection process by automatically immobilizing cells through aggregation in the gel matrix. This eliminates the need for complex sample preparation steps, specialized equipment operation, and trained technical personnel, making the test easy to perform in routine andrology laboratories.
Solution Approach 2:
The patent employs simple, inexpensive materials such as thickening agents and standard optical microscopy instead of expensive, complex equipment. This approach makes the test economically viable for routine use and eliminates the need for maintaining sophisticated instruments, thereby improving ease of operation.
3Ease of operation
If cell motility is reduced using thickening agent, then ease of operation is improved, but cell aggregation increases as harmful factor
Solution Approach 1:
The patent converts the potentially harmful effect of cell aggregation into a beneficial feature. By using a thickening agent, cells naturally aggregate and immobilize in the gel matrix, which would normally be considered a harmful artifact. However, this aggregation is exploited to concentrate cells in fixed positions, enabling easy detection of ROS indicators through simple microscopy without cells moving or dispersing.
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 method provides an economical and straightforward way to determine the presence of ROS in cellular populations, improving the assessment of oxidative stress and aiding in the diagnosis of male infertility by reducing cell motility and aggregation, enabling accurate identification of ROS-containing cells.
Implementation Method 1
contacting, in isotonic conditions, said cellular population with a thickening agent so that the motility of the cells of the cellular population is substantially reduced
Implementation Method 2
putting the mixture obtained in b) with a gelling agent on a solid support in conditions suitable for gelling of the gelling agent to take place
Implementation Method 3
maintaining the mixture obtained in step a) for a sufficient time for conversion of the indicator compound to a compound that is detectable in those cells that contain reactive oxygen species
Data Source
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AI summary
The invention relates to a method for determining the production of reactive oxygen species in a cellular population. The invention also relates to a method for determining the need for an antioxidant treatment of a male subject, and to a method for identifying a substance that can reduce the reactive oxygen species in a cellular population.