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Delayed adrenarche may be an additional feature of immunoglobulin super family member 1 deficiency syndrome

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Abstract
Immunoglobulin super family member 1 (IGSF1) deficiency syndrome is characterized by central hypothyroidism, delayed surge in testosterone during puberty, macro-orchidism, and in some cases, hypoprolactinemia and/or transient growth hormone (GH) deficiency. Our patient was a 19-year-old male adolescent who had been treated since the age of 9 years with GH and thyroxine for an idiopathic combined GH, thyroid-stimulating hormone (TSH), and prolactin (PRL) deficiency. His GH deficiency proved to be transient, but deficiencies of TSH and PRL persisted, and he had developed macro-orchidism since the end of puberty. Brain magnetic resonance imaging and PROP1 and POU1F1 sequencing were normal. A disharmonious puberty (delayed genital and pubic hair development, bone maturation, and pubertal growth spurt, despite normal testicular growth) was observed as well as a delayed adrenarche, as reflected by very low dehydroepiandrosterone sulfate and delayed pubarche. Direct sequencing of the IGSF1 gene revealed a novel hemizygous mutation, c.3127T>C, p.Cys1043Arg. Pathogenicity of the mutation was demonstrated in vitro. Male children with an idiopathic combined GH, PRL, and TSH deficiency, showing persistent central hypothyroidism but transient GH deficiency upon retesting at adult height, should be screened for mutations in the IGSF1 gene, especially when macro-orchidism and/or hypoprolactinemia are present. We suspect that delayed adrenarche, as a consequence of PRL deficiency, might be part of the clinical phenotype of patients with IGSF1 deficiency.
Keywords
Immunoglobulin super family member 1 deficiency syndrome, central hypothyroidism, macro-orchidism, delayed adrenarche, novel mutation, DEHYDROEPIANDROSTERONE-SULFATE, CENTRAL HYPOTHYROIDISM, PROLACTIN PRL, RECEPTOR, IGSF1, ANDROGENS, HORMONE

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MLA
Van Hulle, Severine, et al. “Delayed Adrenarche May Be an Additional Feature of Immunoglobulin Super Family Member 1 Deficiency Syndrome.” JOURNAL OF CLINICAL RESEARCH IN PEDIATRIC ENDOCRINOLOGY, vol. 8, no. 1, 2016, pp. 86–91, doi:10.4274/jcrpe.2512.
APA
Van Hulle, S., Craen, M., Callewaert, B., Joustra, S., Oostdijk, W., Losekoot, M., … De Schepper, J. (2016). Delayed adrenarche may be an additional feature of immunoglobulin super family member 1 deficiency syndrome. JOURNAL OF CLINICAL RESEARCH IN PEDIATRIC ENDOCRINOLOGY, 8(1), 86–91. https://doi.org/10.4274/jcrpe.2512
Chicago author-date
Van Hulle, Severine, Margarita Craen, Bert Callewaert, Sjoerd Joustra, Wilma Oostdijk, Monique Losekoot, Jan Maarten Wit, Marc Olivier Turgeon, Daniel J Bernard, and Jean De Schepper. 2016. “Delayed Adrenarche May Be an Additional Feature of Immunoglobulin Super Family Member 1 Deficiency Syndrome.” JOURNAL OF CLINICAL RESEARCH IN PEDIATRIC ENDOCRINOLOGY 8 (1): 86–91. https://doi.org/10.4274/jcrpe.2512.
Chicago author-date (all authors)
Van Hulle, Severine, Margarita Craen, Bert Callewaert, Sjoerd Joustra, Wilma Oostdijk, Monique Losekoot, Jan Maarten Wit, Marc Olivier Turgeon, Daniel J Bernard, and Jean De Schepper. 2016. “Delayed Adrenarche May Be an Additional Feature of Immunoglobulin Super Family Member 1 Deficiency Syndrome.” JOURNAL OF CLINICAL RESEARCH IN PEDIATRIC ENDOCRINOLOGY 8 (1): 86–91. doi:10.4274/jcrpe.2512.
Vancouver
1.
Van Hulle S, Craen M, Callewaert B, Joustra S, Oostdijk W, Losekoot M, et al. Delayed adrenarche may be an additional feature of immunoglobulin super family member 1 deficiency syndrome. JOURNAL OF CLINICAL RESEARCH IN PEDIATRIC ENDOCRINOLOGY. 2016;8(1):86–91.
IEEE
[1]
S. Van Hulle et al., “Delayed adrenarche may be an additional feature of immunoglobulin super family member 1 deficiency syndrome,” JOURNAL OF CLINICAL RESEARCH IN PEDIATRIC ENDOCRINOLOGY, vol. 8, no. 1, pp. 86–91, 2016.
@article{7195208,
  abstract     = {{Immunoglobulin super family member 1 (IGSF1) deficiency syndrome is characterized by central hypothyroidism, delayed surge in testosterone during puberty, macro-orchidism, and in some cases, hypoprolactinemia and/or transient growth hormone (GH) deficiency. Our patient was a 19-year-old male adolescent who had been treated since the age of 9 years with GH and thyroxine for an idiopathic combined GH, thyroid-stimulating hormone (TSH), and prolactin (PRL) deficiency. His GH deficiency proved to be transient, but deficiencies of TSH and PRL persisted, and he had developed macro-orchidism since the end of puberty. Brain magnetic resonance imaging and PROP1 and POU1F1 sequencing were normal. A disharmonious puberty (delayed genital and pubic hair development, bone maturation, and pubertal growth spurt, despite normal testicular growth) was observed as well as a delayed adrenarche, as reflected by very low dehydroepiandrosterone sulfate and delayed pubarche. Direct sequencing of the IGSF1 gene revealed a novel hemizygous mutation, c.3127T>C, p.Cys1043Arg. Pathogenicity of the mutation was demonstrated in vitro. Male children with an idiopathic combined GH, PRL, and TSH deficiency, showing persistent central hypothyroidism but transient GH deficiency upon retesting at adult height, should be screened for mutations in the IGSF1 gene, especially when macro-orchidism and/or hypoprolactinemia are present. We suspect that delayed adrenarche, as a consequence of PRL deficiency, might be part of the clinical phenotype of patients with IGSF1 deficiency.}},
  author       = {{Van Hulle, Severine and Craen, Margarita and Callewaert, Bert and Joustra, Sjoerd and Oostdijk, Wilma and Losekoot, Monique and Wit, Jan Maarten and Turgeon, Marc Olivier and Bernard, Daniel J and De Schepper, Jean}},
  issn         = {{1308-5727}},
  journal      = {{JOURNAL OF CLINICAL RESEARCH IN PEDIATRIC ENDOCRINOLOGY}},
  keywords     = {{Immunoglobulin super family member 1 deficiency syndrome,central hypothyroidism,macro-orchidism,delayed adrenarche,novel mutation,DEHYDROEPIANDROSTERONE-SULFATE,CENTRAL HYPOTHYROIDISM,PROLACTIN PRL,RECEPTOR,IGSF1,ANDROGENS,HORMONE}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{86--91}},
  title        = {{Delayed adrenarche may be an additional feature of immunoglobulin super family member 1 deficiency syndrome}},
  url          = {{http://doi.org/10.4274/jcrpe.2512}},
  volume       = {{8}},
  year         = {{2016}},
}

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