Oxidative and Nitrosative Stress Detection in Human Sperm Using Fluorescent Probes

Area of Science:

• Reproductive biology
• Biochemistry
• Cellular biology

Background:

• Reactive oxygen species (ROS) are by-products of mitochondrial respiration crucial for fertilization.
• Elevated ROS/RNS cause oxidative/nitrosative stress, linked to male infertility.
• Accurate detection methods for ROS/RNS in andrology labs are needed.

Purpose of the Study:

• To describe a novel methodology for assessing ROS and RNS levels in human sperm.
• To validate the use of fluorescent probes, including mitochondrially targeted ones, for ROS/RNS detection.
• To provide an accurate and reproducible method for research and clinical settings.

Main Methods:

• Utilized fluorescent probes, some TPP+-coupled for mitochondrial targeting.
• Employed flow cytometry and fluorescent microscopy for ROS/RNS assessment in human sperm.
• Developed a user-friendly and accurate detection technique.

Main Results:

• Demonstrated the efficacy of fluorescent probes in quantifying ROS and RNS in sperm.
• Showcased the applicability of the method in both research and clinical contexts.
• Validated the accuracy and reproducibility of the developed technique.

Conclusions:

• The described fluorescent probe methodology offers a reliable tool for ROS/RNS detection in human sperm.
• This method supports the investigation of oxidative and nitrosative stress in male infertility.
• The technique is suitable for routine use in andrology laboratories.