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Hormonally Active Agents: A Menace for Oogenesis and Fertility in Teleosts

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Recent updates in molecular Endocrinology and Reproductive Physiology of Fish

Abstract

Oogenesis, an amalgamation of the balanced network of neuroendocrine, endocrine, and autocrine/paracrine factors, is inevitable for the production of fertilizable female gamete and sustenance of a progeny on earth. In today’s up-to-the-minute world, aquatic organisms are exposed to a myriad of environmental anthropogenic contaminants that share structural similarity with natural hormones, putting fish fertility and aquaculture industries at stake. A subset of such endocrine disruptors is the “xenoestrogens” that carry the ability to mimic 17β-estradiol, a natural female hormone, leading to adverse outcomes such as early puberty, premature ovarian failure, and impaired fertility. The present review seeks to elucidate the voyage of a fish oocyte undertaking the endocrine as well as autocrine/paracrine inputs. The effects of EDCs on various ovarian processes have been summarized along with the diverse signaling cascades that might participate to induce significant alterations at the receptor level, steroidogenic potential, maturational competence, ovulatory response, or even epigenetics of the ovary. Since reproduction heavily relies on the metabolic state of an organism, the potential influence of endocrine disruptors on oxidative stress and energy homeostasis has also been taken into consideration.

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Acknowledgments

S.B. gratefully acknowledges financial support by DST, New Delhi, through award of INSPIRE Fellowship. S.M. is thankful to Head, Department of Zoology, Visva-Bharati University, Santiniketan, India (grant number DST-FIST No. SR/FST/LS II-031/2013[C]) for providing infrastructural facilities.

Funding Sources

Indian Council of Agricultural Research, New Delhi, Grant No. NASF/ABA-6018/2016-17; Department of Science and Technology, Government of India, Grant No. SR/FST/LSII 031/2013(c); and University Grants Commission, Government of India, Grant No. UGC-CAS No. F.5-11/2012 [SAP-II].

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The authors declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.

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Correspondence to Sudipta Maitra .

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Biswas, S., Ghosh, S., Mukherjee, U., Samanta, A., Das, S., Maitra, S. (2021). Hormonally Active Agents: A Menace for Oogenesis and Fertility in Teleosts. In: Sundaray, J.K., Rather, M.A., Kumar, S., Agarwal, D. (eds) Recent updates in molecular Endocrinology and Reproductive Physiology of Fish. Springer, Singapore. https://doi.org/10.1007/978-981-15-8369-8_19

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