Evaluation of salivary cortisol measurements for the diagnosis of subclinical Cushing’s syndrome
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- Tateishi Yuko
- Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate School, Tokyo 113-8519, Japan
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- Kouyama Ryuji
- Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate School, Tokyo 113-8519, Japan
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- Mihara Masatomo
- Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate School, Tokyo 113-8519, Japan
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- Doi Masaru
- Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate School, Tokyo 113-8519, Japan
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- Yoshimoto Takanobu
- Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate School, Tokyo 113-8519, Japan
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- Hirata Yukio
- Department of Clinical and Molecular Endocrinology, Tokyo Medical and Dental University Graduate School, Tokyo 113-8519, Japan
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抄録
Late-night salivary cortisol (NSC) has been recognized as a sensitive and easy-to-perform screening test for the diagnosis of overt Cushing’s syndrome (CS). However, there have been few reports on the diagnostic utility of salivary cortisol (SC) measurement in the diagnosis of subclinical Cushing’s syndrome (SCS). Therefore, the present study was designed to evaluate the usefulness of SC measurements at late-night and after overnight 1 mg dexamethasone suppression test (DST) for the diagnosis of SCS in 42 patients with adrenal incidentaloma. We evaluated 16 patients with SCS, 12 with nonfunctioning adenoma (NFA), 8 with primary aldosteronism (PA), and 6 with pheochromocytoma (Pheo). NSC levels in SCS patients (0.238 ± 0.106 μg/dL) were significantly (P < 0.05) higher than those in NFA patients (0.154 ± 0.104 μg/dL); the cutoff value (0.11 μg/dL) by ROC analysis gave high sensitivity (100%) with low specificity (50%). Post DST SC levels in SCS patients (0.238 ± 0.116 μg/dL) were significantly (P = 0.0081) higher than those in NFA patients (0.136 ± 0.110 μg/dL); the cutoff value (0.12 μg/dL) by ROC analysis gave high sensitivity (93.8%) with somewhat improved specificity (58.3%). Both NSC and post DST SC levels were comparable between NFA, PA, and Pheo patients. In conclusion, our study revealed that measurements of NSC and/or post DST SC among patients with adrenal incidentaloma prove to have high sensitivities, but low specificities for the diagnosis of SCS from NFA, suggesting its possible alternative option before the screening tests for SCS currently employed in Japan.
収録刊行物
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- Endocrine Journal
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Endocrine Journal 59 (4), 283-289, 2012
一般社団法人 日本内分泌学会
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詳細情報 詳細情報について
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- CRID
- 1390282681276459520
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- NII論文ID
- 10030749308
- 130004443797
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- NII書誌ID
- AA10901436
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- COI
- 1:STN:280:DC%2BC38vgslertg%3D%3D
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- ISSN
- 13484540
- 09188959
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- PubMed
- 22261010
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可