Personal profile
Expertises
On the basis of my master in molecular biomedicine I have a broad knowledge and experience with the various techniques used for molecular diagnostics.
Main research areas
Reproductive science with focus on molecular mechanisms involved in the female reproductive system.
Current research
The aim of my PhD project is to enhance the knowledge of mechanisms that are essential to female fertility. More specifically the project focuses on regulation of Insulin-like Growth Factor (IGF) activity within female reproductive organs with special emphasis on Pregnancy-Associated Plasma Protein-A (PAPP-A). Single nucleotide polymorphisms (SNPs) in the PAPP-A gene that are associated with adverse pregnancy outcome are analyzed. I will evaluate how these genetic variations affect human ovarian follicular function, and thereby deduce whether genetic variations may or may not influence the female fertility. Evaluation of a possible association between these SNPs and recurrent pregnancy loss will be performed. Further, gene expression levels from isolated stage-specific human follicles will be studied with focus on genes related to the IGF system. Finally, in order to investigate the regulation of IGF signaling in detail an in vitro system using human immature granulosa cells will be established.
Potential conflicts of interest
No conflicts of interest.
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Collaborations and top research areas from the last five years
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Inhibitory role of activin A during luteinization of follicular and lutein granulosa cells from small antral and preovulatory human follicles
Jensen, L. B., Højer, L. V., Schönhage, L., Adrados, C. S., Bøtkjær, J. A., Borgbo, T., Cadenas, J., Macklon, K. T., Ringholm, S., Pedersen, A. T. & Kristensen, S. G., Mar 2026, In: Reproductive biology. 26, 1, 101169.Research output: Contribution to journal › Journal article › Research › peer-review
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Prevalence of an endogenous LH rise following final GnRH antagonist dose in the IVF antagonist protocol
Løssl, K., Wang, N. F., Bogstad, J. W., Dam, T. V., Bülow, N., Bøtkjær, J. A., Petersen, M. R., Dessing, L. B., Oxlund-Mariegaard, B., Celicanin, M. M., Pinborg, A., Mamsen, L. S., Poulsen, L. C. & Andersen, C. Y., Jun 2026, In: European Journal of Obstetrics and Gynecology and Reproductive Biology: X. 30, 100454.Research output: Contribution to journal › Journal article › Research › peer-review
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Distinct Luteinization Profiles of Cultured Human Granulosa Cells from Small Antral and Preovulatory Follicles
Jensen, L. B., Adrados, C. S., Bøtkjær, J. A., Cadenas, J., Sittadjody, S., Opara, E., Sørensen, P. L., Macklon, K. T., Pedersen, A. T. & Kristensen, S. G., 18 Nov 2025, In: The Journal of clinical endocrinology and metabolism. 110, 12, p. 3470-3481 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
3 Citations (Scopus) -
Dynamics of IGF Signaling During the Ovulatory Peak in Women Undergoing Ovarian Stimulation
Bøtkjær, J. A., Poulsen, L. L. C., Noer, P. R., Grøndahl, M. L., Englund, A. L. M., Franks, S., Hardy, K., Oxvig, C. & Andersen, C. Y., 1 Jan 2025, In: The Journal of clinical endocrinology and metabolism. 110, 1, p. e160-e167Research output: Contribution to journal › Journal article › Research › peer-review
7 Citations (Scopus) -
Corrigendum: Dose-dependent stimulation of human follicular steroidogenesis by a novel rhCG during ovarian stimulation with fixed rFSH dosing
Bøtkjær, J. A., Kristensen, S. G., Olesen, H. Ø., Larsson, P., Mannaerts, B. & Andersen, C. Y., 2024Research output: Other contribution › Research