[Use of luminescence microspectral analysis for evaluating the synthetic activity of testicular incretory cells]

A study was made of the synthetic activity of Leydig's cells in the testes of rabbit fetuses at different stages of intrauterine development by the method of luminescent microspectral analysis and the results were compared with the level of testosterone determined by a radioimmunoassay in the blood plasma of these fetuses. The data obtained by both methods showed correlation. A conclusion has been made as to a possibility of the use of the luminescent microspectral method to study the synthetic activity of cells of the endocrine glands.