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Oligogenic basis of isolated gonadotropin-releasing hormone deficiency

Open access
Sykiotis, Gerasimos P., Plummer, Lacey, Hughes, Virginia A., Au, Margaret, Durrani, Sadia, Nayak-Young, Sadhana, Dwyer, Andrew A., Quinton, Richard, Hall, Janet E., Gusella, James F., Seminara, Stephanie B., Crowley, William F., Pitteloud, Nelly·2010·Proceedings of the National Academy of Sciences

Abstract

Between the genetic extremes of rare monogenic and common polygenic diseases lie diverse oligogenic disorders involving mutations in more than one locus in each affected individual. Elucidating the principles of oligogenic inheritance and mechanisms of genetic interactions could help unravel the newly appreciated role of rare sequence variants in polygenic disorders. With few exceptions, however, the precise genetic architecture of oligogenic diseases remains unknown. Isolated gonadotropin-releasing hormone (GnRH) deficiency caused by defective secretion or action of hypothalamic GnRH is a rare genetic disease that manifests as sexual immaturity and infertility. Recent reports of patients who harbor pathogenic rare variants in more than one gene have challenged the long-held view that the disorder is strictly monogenic, yet the frequency and extent of oligogenicity in isolated GnRH deficiency have not been investigated. By systematically defining genetic variants in large cohorts of well-phenotyped patients ( n = 397), family members, and unaffected subjects ( n = 179) for the majority of known disease genes, this study suggests a significant role of oligogenicity in this disease. Remarkably, oligogenicity in isolated GnRH deficiency was as frequent as homozygosity/compound heterozygosity at a single locus (2.5%). Among the 22% of patients with detectable rare protein-altering variants, the likelihood of oligogenicity was 11.3%. No oligogenicity was detected among controls ( P < 0.05), even though deleterious variants were present. Viewing isolated GnRH deficiency as an oligogenic condition has implications for understanding the pathogenesis of its reproductive and nonreproductive phenotypes; deciphering the etiology of common GnRH-related disorders; and modeling the genetic architecture of other oligogenic and multifactorial diseases.

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Metadata

Authors
Sykiotis, G. P., Plummer, L., Hughes, V. A., Au, M., Durrani, S., Nayak-Young, S., Dwyer, A. A., Quinton, R., Hall, J. E., Gusella, J. F., Seminara, S. B., Crowley, W. F., & Pitteloud, N.
Venue
Proceedings of the National Academy of Sciences
Published
2010-08-09
Volume
107
Issue
34
Pages
15140-15144
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2006433593
Cited by
360
References
15
FWCI
28.64
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Oligogenic basis of isolated gonadotropin-releasing hormone deficiency. https://app.cochat.ai/papers/10.1073/pnas.1009622107
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Sykiotis, G. P., Plummer, L., Hughes, V. A., Au, M., Durrani, S., Nayak-Young, S., Dwyer, A. A., Quinton, R., Hall, J. E., Gusella, J. F., Seminara, S. B., Crowley, W. F., & Pitteloud, N. (2010). Oligogenic basis of isolated gonadotropin-releasing hormone deficiency. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1009622107

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