| Title |
Hypothalamo-pituitary-adrenal axis after a single epidural triamcinolone injection
|
|---|---|
| Published in |
Endocrine, July 2017
|
| DOI | 10.1007/s12020-017-1357-7 |
| Pubmed ID | |
| Authors |
Ali Iranmanesh, Dakshinamurty Gullapalli, Ravinder Singh, Johannes D. Veldhuis |
| Abstract |
To quantify adrenocorticotropin and cortisol secretion after epidural glucocorticoid injection. Eight men (ages 25-63 year) were studied at baseline, 1, 4, and 12 weeks after triamcinolone (80 mg) injection epidurally. Adrenocorticotropin (pg/mL) and cortisol (µg/dL) were measured every 10 min for 4 h, and after Corticotropin-releasing hormone (CRH) (1 µg/kg) injection. Epidural triamcinolone markedly suppressed: (1) pre-CRH injection ACTH (from 18 ± 3.1 to 4.8 ± 0.4: P < 0.01) and cortisol (from 12.2 ± 1.6 to 1.6 ± 0.3: P < 0.0001) at week 1, with recovery at 4 weeks, and (2) CRH-stimulated 3-h summed ACTH (from 633 ± 116 to 129 ± 10 pg/mL, P < 0.0001), and 3-h summed cortisol at week 1 (from 385 ± 29 to 56 ± 22 µg/dL, P < 0.0001) and 4 weeks (284 ± 53; P < 0.01). Serum cortisol was <18 µg/dL in eight of eight men at 4 weeks, and six of eight men at week 12. Urinary-free cortisol (µg/24 h) remained low at week 12: baseline (60 ± 6.5); week 1 (9.0 ± 1.3, P < 0.01); week 4 (36 ± 8.6) and week 12 (38 ± 4.1). Urinary cortisol/cortisone ratios rose at week 4 only. Serum triamcinolone peaked at week 1 (16/16 samples), declining at week 4 (13/16 samples) and week 12 (6/16 samples). Relatively small group. Epidural triamcinolone suppresses unstimulated and CRH-stimulated ACTH and cortisol secretion for 1-4 weeks but urinary free cortisol ≥12 weeks. Suppression of ACTH and cortisol after glucocorticoid treatment is thus complex. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 17 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 17 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 4 | 24% |
| Student > Bachelor | 3 | 18% |
| Other | 2 | 12% |
| Student > Doctoral Student | 1 | 6% |
| Student > Ph. D. Student | 1 | 6% |
| Other | 3 | 18% |
| Unknown | 3 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 8 | 47% |
| Nursing and Health Professions | 2 | 12% |
| Psychology | 1 | 6% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 6% |
| Sports and Recreations | 1 | 6% |
| Other | 1 | 6% |
| Unknown | 3 | 18% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 21 July 2017.
All research outputs
#18,822,154
of 23,325,355 outputs
Outputs from Endocrine
#1,197
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Outputs of similar age
#241,092
of 314,677 outputs
Outputs of similar age from Endocrine
#20
of 27 outputs
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