Scientists from Pennsylvania treat the first in the world of infertile man by transplanting stem cells into the testes. Until now, this procedure has been successfully tested only in mice and monkeys. A man between the ages of twenty and thirty years was diagnosed Azoospermia, which is a condition that causes no sperm in his ejaculate.
The patient in childhood underwent chemotherapy for the treatment of bone cancer. As part of the clinical study, doctors implanted his own stem cells into the testicles, which were taken and frozen in his childhood before he underwent chemotherapy. Stem cells are able to develop in the body to many different types of cells. In this case, stem cells were used to form sperm.
No ripe sperm has been detected in the man’s sperm yet, but the examination confirmed that U has been produced by male sex hormones. Doctors now analyze the sperm sample twice a year to see if it contains sperm. This treatment may prove particularly beneficial to others Patients with cancer who underwent chemotherapy before puberty and developed Azoospermia.
In these patients, however, some of the transplanted stem cells could have genetic mutations causing cancer that could eventually develop into new tumors, warning scientists from Pennsylvania. In addition, there is also a theoretical risk that transplantation can cause a dangerous inflammatory reaction in the patient, even if his own cells are used.
