You can find out our contact information using the directory of the ULE.

Felipe Martínez-Pastor, Ph. D. (

Dr. Felipe Martínez Pastor achieved a B. Sc. and M. Sc. in the University of León. He carried out his Ph. D. research in the Cell Biology Department of ULE, on the collection, characteristics, and freezing of wild ruminant epididymal spermatozoa. After obtaining his Ph. D. title in 2004, he held a post-doctoral position at the University of Castilla-La Mancha. He achieved a Ramón y Cajal fellowship in 2009 and he currently is a researcher at the University of León.

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Cristina-650x650 Cristina Soriano-Úbeda, Ph. D. (

Dr. Soriano-Úbeda is a Doctor of Veterinary Medicine (DVM, 2009) and M. Sc. in Biology and Technology of Reproduction in Mammals (2010) by the University of Murcia, and Specialist in Human Reproduction (2013) by the Miguel Hernández University. She got a Ph. D. in the Universidad de Murcia in 2017 studying how to improve the current systems of sperm capacitation and in vitro fertilization in porcine species simulating the in vivo oviductal environment. She was working as a postdoctoral researcher at the University of Massachusetts (USA) and made research stays in UK and Japan. She is currently working as a postdoctoral researcher at the University of León (Spain).

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1517038552633Estíbaliz Lacalle, M. Sc. (

Estíbaliz is carrying out her Ph. D. in our group.

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Former personnel

Estela Fernández Alegre, Ph. D. (

Estela got her Ph.D. in 2019. She is now the lab supervisor at Bianor Biotech SL.



Amer Q. Salman, Ph. D. (

Amer got his Ph.D. in 2020. His project dealt with the optimization of cryopreservation survival of bull sperm in situations of low cryotolerance. He attained a Master in Veterinary Medicine-Animal Reproduction at the University of Baghdad.



Ender Yalcinkaya Kalyan, M. Sc. (

Ender is an embryologist in Turkey collaborating with our group. Her interest is on the effects of different oxygen tensions on sperm quality and subsequent embryo development.




Itxaso Crespo Félez, M. Sc. (

Itxaso got a bachelor degree in marine sciences in the University of Cádiz, Spain.
Then she achieved a M. Sc in the University of León and carried out the final
master work in the group. Currently, she carry out the analysis of sperm samples from
clinics and farms.



Leticia Ordás, M. Sc., BVSc

Leticia Ordás was a scientific collaborator in the INDEGSAL. She is microbiologist quality control manager at Gadea Biopharma.




FotoMaría Mata-Campuzano, M. Sc.

María Mata Campuzano obtained a B. Sc. and M. Sc. at the University of León.



 Former students

Alba Ledesma, Ph. D.

Alba is a Ph.D. Candidate at University of Mar del Plata, Argentina. She carried out a stay at Reprobio’s lab in 2015 to investigate the effect of seminal plasma proteins on ram spermatozoa.



Isabel Gutiérrez Díaz, Ph. D.

Isabel carried out her M. Sc. in the group, studying the presence of aneuploid spermatozoa in human and pig.



Natalia MolineroNatalia Molinero García, Ph. D.

Natalia carried out her M. Sc. in the group, studying human sperm chromatin structure.



Teresa A. Balmori Roiz, BVSc

She is a veterinary student from the University of León. She carried out her final degree work with Dr. J.C Fernandez Dominguez-Tejerina, being supervised by  Dr. Felipe Martinez Pastor in INDEGSAL. This final degree work is about melatonin receptors in bovine spermatozoa.