Objective: To disclose a new biotechnique, listing some of its aspects and addressing its main stages, isolation, cryopreservation and culture of preantral follicles. Data Sources: The information was obtained from CAB, MEDLINE, PUBMED, Science Direct and CAPES Portal. Data Synthesis: The preantral follicles store about 90% of the oocytes within the ovary. The biotechnique described is based on recovering immature oocytes retained inside preantral follicles before atresia takes place. The cryopreservation of these cells enables the creation of germoplasm banks, preserving the genetic material of women submitted to chemotherapy and/or radiotherapy, as well as that endangered animal species. Conclusions: Being a recent biotechnique, its application is... |