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Testicular tissue bank: More than 10 years ago, the Biology of the Testis group in collaboration with the UZ Brussel hospital were one of the first in the world offering testicular tissue cryopreservation for fertility preservation. Now, material of roughly 100 patients has been stored. 

Yoni Baert (o1987) is postdoctoral researcher at BITE, the research unit Biology of the Testis. His research focusses on finding therapies that restore fertility of sterile boys and men. He aims to develop a culture system that allows the production of sperm in the laboratory - “in-vitro spermatogenesis” – by using state-of-the-art 3D bioprinting technology. To learn more about in-vitro spermatogenesis, Baert spent eight months at the Karolinska Institutet in Stockholm, Sweden. 


This article was previously published in HENRI Magazine.

INYRMF: 2006, the International Network for Young Researchers in Male Fertility ( ) was founded. Baert joined the board in 2013 and will be organising the 2017 edition held in Brussels.

3D bioprinting: The 3D bioprinter allows dispensing of cells, layer by layer, to build a living 3D tissue. Baert uses the §D bioprinter of the UGent research groups Polymer Chemistry & Biomaterials and Tissue Engineering.

Microscopy:  Specific proteins associated with differentiation of spermatogonial stem cells to sperm, can be stained by immunofluorescence and evaluated with a microscope.

Sweden: The time spent in Sweden gave Baert the opportunity to see the famous aurora borealis in Swedish Lapland, experience dog sledging and travel through the beautiful landscape.