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Long-term follow-up of three family members with a novel NNT pathogenic variant causing primary adrenal insufficiency [Elektronski vir]Krašovec, Tjaša ...Nicotinamide nucleotide transhydrogenase (NNT) deficiency causes primary adrenal insufficiency (PAI) and possibly some extra-adrenal manifestations. A limited number of these patients were previously ... described. We present the clinical and genetic characteristics of three family members with a biallelic novel pathogenic variant in the NNT gene. The patients were followed until the ages of 21.6, 20.2, and 4.2 years. PAI was diagnosed in the eldest two brothers after an Addisonian crisis and the third was diagnosed at the age of 4.5 months in the asymptomatic stage due to the genetic screening of family members. Whole exome sequencing with a targeted interpretation of variants in genes related to PAI was performed in all the patients. The urinary steroid metabolome was determined by gas chromatography–mass spectrometry in the asymptomatic patient. The three patients, who were homozygous for c.1575dup in the NNT gene, developed isolated glucocorticoid deficiency. The urinary steroid metabolome showed normal excretion of cortisol metabolites. The adolescent patients had slow pubertal progression with low–normal testicular volume, while testicular endocrine function was normal. Bone mineral density was in the range for osteopenia in both grown-up siblings. Echocardiography revealed no structural or functional heart abnormalities. This article is among the first with a comprehensive and chronologically-detailed description of patients with NNT deficiency.Source: Genes [Elektronski vir]. - ISSN 2073-4425 (Vol. 13, iss. 5, 2022, str. 1-12)Type of material - e-article ; adult, seriousPublish date - 2022Language - englishCOBISS.SI-ID - 105459459
Author
Krašovec, Tjaša |
Šikonja, Jaka |
Žerjav-Tanšek, Mojca |
Debeljak, Maruša |
Ilovar, Saša |
Trebušak Podkrajšek, Katarina |
Bertok, Sara, 1976- |
Tesovnik, Tine |
Kovač, Jernej, medicina, 1983- |
Šuput, Jasna |
Hartmann, Michaela F. |
Wudy, Stefan A |
Avbelj Stefanija, Magdalena, 1974-2024 |
Battelino, Tadej |
Kotnik, Primož |
Grošelj, Urh
Topics
nikotinamid nukleotidna transhidrogenaza |
pomanjkanje NNT |
primarna insuficienca nadledvične žleze |
nicotinamide nucleotide transhydrogenase |
NNT deficiency |
primary adrenal insufficiency
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Krašovec, Tjaša | ![]() |
Šikonja, Jaka | ![]() |
Žerjav-Tanšek, Mojca | 15440 |
Debeljak, Maruša | 15657 |
Ilovar, Saša | ![]() |
Trebušak Podkrajšek, Katarina | 20253 |
Bertok, Sara, 1976- | 35553 |
Tesovnik, Tine | 37490 |
Kovač, Jernej, medicina, 1983- | 32181 |
Šuput, Jasna | 29976 |
Hartmann, Michaela F. | ![]() |
Wudy, Stefan A | ![]() |
Avbelj Stefanija, Magdalena, 1974-2024 | 23435 |
Battelino, Tadej | 13023 |
Kotnik, Primož | 21358 |
Grošelj, Urh | 33868 |
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