Vitrified human ovaries have fewer primordial follicles and produce less antimüllerian hormone than slow-frozen ovaries.

@article{Oktem2011VitrifiedHO,
  title={Vitrified human ovaries have fewer primordial follicles and produce less antim{\"u}llerian hormone than slow-frozen ovaries.},
  author={Ozgur Oktem and Ebru Alper and Başak Balaban and Erhan Palaoğlu and Kamil R. Peker and Cengiz Karakaya and Bulent Urman},
  journal={Fertility and sterility},
  year={2011},
  volume={95 8},
  pages={
          2661-4.e1
        }
}
Vitrified sheep isolated secondary follicles are able to grow and form antrum after a short period of in vitro culture
The risk of reintroducing malignant cells after ovarian graft into patients following post-cancer treatment is an obstacle for clinical applications (autotransplantation). In this context, in vitro
Human single follicle growth in vitro from cryopreserved ovarian tissue after slow freezing or vitrification.
TLDR
This is the first comparison of gene expression and growth of single human ovarian follicles in vitro after either slow freezing or vitrification for human ovarian cortex cryopreservation.
Primordial follicle survival of goat ovarian tissue after vitrification and transplantation on chorioallanthoic membrane
TLDR
Evaluating primordial follicle density and deoxyribonucleic acid (DNA) fragmentation in each stage of the preservation procedure of goat ovarian tissue found no significant difference between fresh, fresh-transplanted, vitrification, and vitrification-transplant groups.
Vitrification versus slow freezing for human ovarian tissue cryopreservation: a systematic review and meta-anlaysis
TLDR
It is suggested that vitrification may be more effective than slow freezing for cryopreservation of ovarian tissue, with less primordial follicular DNA strand breaks and better preservation of stromal cells, which should lead to improved ovarian function after transplantation.
Comparison of vitrification and conventional slow freezing for cryopreservation of ovarian tissue with respect to the number of intact primordial follicles
TLDR
Vitrification and slow freezing produce equivalent results with respect to intact primordial follicles for the cryopreservation of human ovarian tissue, however, the included studies varied in the cryOPreservation protocols used.
Cellular and molecular impact of vitrification versus slow freezing on ovarian tissue.
TLDR
Vitrification preserved follicular morphology better than slow freezing and led to gene overexpressed, while slow freezing led to genes underexpressed.
Ovarian tissue vitrification is more efficient than slow freezing to preserve ovarian stem cells in CF-1 mice
TLDR
Although both protocols indicated similar results in the histological analysis of follicular counts, the vitrification protocol was significantly better to preserve ovarian stem cells, an immature germ cell population, and may be effective for the treatment of ovarian failure and consequently infertility.
Sphingosine‐1‐phosphate reduces atresia of primordial follicles occurring during slow‐freezing and thawing of human ovarian cortical strips
TLDR
It is suggested that sphingosine‐1‐phosphate may ameliorate follicle atresia occurring in human ovarian cortical samples during cryopreservation.
In vitro growth and development of isolated secondary follicles from vitrified caprine ovarian cortex.
TLDR
In conclusion, secondary follicles can be isolated from vitrified and warmed ovarian cortex and survive and form an antrum when growing in an in vitro culture for 6 days.
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References

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Vitrification versus controlled-rate freezing in cryopreservation of human ovarian tissue.
TLDR
Cryopreservation using controlled-rate freezing and vitrification preserved the morphological characteristics of ovarian tissue generally well, and the ovarian stroma was significantly better preserved after vitrification than after slow freezing.
Human ovarian tissue vitrification versus conventional freezing: morphological, endocrinological, and molecular biological evaluation.
TLDR
It was demonstrated that the GAPDH gene expression in ovarian tissue after vitrification was dramatically decreased in contrast to conventional freezing, which is more promising than vitrification for cryopreservation of human ovarian tissue.
Novel needle immersed vitrification: a practical and convenient method with potential advantages in mouse and human ovarian tissue cryopreservation.
TLDR
The NIV method could facilitate vitrification process, maximize the cooling rate and reduce the toxicity of the vitrification solution with a minimal volume of less concentrated cryoprotectants.
Re-vascularisation in human ovarian tissue after conventional freezing or vitrification and xenotransplantation.
Pregnancy after transplantation of cryopreserved ovarian tissue in a patient with ovarian failure after chemotherapy.
To the Editor: Premenopausal women who undergo high-dose chemotherapy have a very high risk of ovarian failure.1 Cryopreservation of ovarian tissue with subsequent autotransplantation has effectively
Biochemical pregnancy after fertilization of an oocyte aspirated from a heterotopic autotransplant of cryopreserved ovarian tissue: case report.
TLDR
In conclusion, heterotopic autotransplantation of cryopreserved ovarian tissue can sustain follicle development and the oocytes of aspirated mature follicles are capable of fertilization after ICSI, and the resulting embryo is competent of producing hCG at detectable levels.
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