RESUMO
Because methylene blue exhibits germicidal, oxidation, and reduction properties, the authors asked whether this agent causes adverse effects on gametes, embryos, and/or secretions of the reproductive tract. Time- and dose-dependent inhibition of human sperm motility by methylene blue was observed, as was growth inhibition of 2-cell mouse embryos. Furthermore, the presence of methylene blue in uterine, fallopian tube, and peritoneal fluids altered protein mobility in polyacrylamide gels, and yielded apparent values of follicle-stimulating hormone and estradiol up to 260% of actual values (P less than 0.05). These data suggest that the presence of methylene blue in reproductive tract fluids may provide a false impression of their biochemical and biophysical compositions, and that the use of methylene blue as a chromopertubation agent be conducted with appropriate awareness.
