Y-fluorescence of interphase nuclei, especially circulating lymphocytes.

Area of Science:

• Cytogenetics
• Molecular Biology
• Medical Diagnostics

Background:

• The Y chromosome plays a crucial role in sex determination and various genetic conditions.
• Accurate detection of the Y chromosome is essential for clinical and prenatal diagnosis.
• Existing methods for Y chromosome identification have limitations in certain applications.

Purpose of the Study:

• To evaluate a fluorescence technique for detecting the human Y chromosome in interphase nuclei.
• To determine the optimal conditions for Y-fluorescence detection.
• To assess the potential of this method for clinical and prenatal diagnosis.

Main Methods:

• Application of a fluorescence technique to interphase nuclei.
• Utilizing lymphocytes from blood smears for analysis.
• Employing buffered quinacrine mustard dihydrochloride for Y-fluorescence.
• Complementing with standard cytogenetic techniques.

Main Results:

• Blood lymphocytes provide the best results for Y-chromosome detection via fluorescence.
• Buffered quinacrine mustard dihydrochloride yields the most satisfactory Y-fluorescence.
• The fluorescence method can be combined with other techniques for comprehensive sex-chromosome analysis.

Conclusions:

• Fluorescence detection of the Y chromosome in lymphocytes is a highly effective method.
• This technique shows significant promise for clinical diagnosis, chromosomal analysis, and prenatal Y-chromosome detection in amniotic cells.