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Study · Not a test of the peptide alone · 1985

8 results

Dexamethasone preparation does not alter corticoid and androgen responses to adrenocorticotropin.

Rosenfield RL, Helke J, Lucky AW

The Journal of clinical endocrinology and metabolism1 Mar 1985Cited by 26 (Europe PMC)

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study8

No result from this study comes from a test of the peptide.

Studies that did not test the peptide alone8

In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking Cosyntropin.

  1. 01HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In participants undergoing cosyntropin tests, dexamethasone pretreatment did not alter absolute plasma steroid levels achieved after stimulation.

    In plain wordsIn cosyntropin tests, absolute steroid levels were unchanged with dexamethasone pretreatment compared with no pretreatment.

    Outcome
    No significant changeAbsolute plasma steroid response
    Study

    n: not reported in source

    Comparator
    Cosyntropin test without dexamethasone pretreatment
    Outcome group
    Adrenal Function · Endocrine and hormones

    Source sentences

    Summary
    Dex did not alter the absolute plasma steroid levels achieved in response to ACTH.
    2 context sentences
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

  2. 02HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In participants undergoing cosyntropin tests, dexamethasone pretreatment increased the 17 alpha-hydroxypregnenolone increment compared with no pretreatment.

    In plain wordsIn cosyntropin tests, the 17 alpha-hydroxypregnenolone rise was greater with dexamethasone pretreatment than without it.

    Outcome
    Increase17 alpha-hydroxypregnenolone increment
    Study

    n: not reported in source

    Comparator
    Cosyntropin test without dexamethasone pretreatment
    Outcome group
    Adrenal Function · Endocrine and hormones

    Source sentences

    Summary
    However, since post-dex baseline concentrations of adrenal steroids were lower, the delta to ACTH was significantly greater for the major adrenal secretory products, 17 alpha-hydroxypregnenolone (3 beta, 17 alpha-dihydroxypregn-5-ene-20-one), dehydroepiandrosterone, and cortisol (F).
    2 context sentences
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

  3. 03HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In participants undergoing cosyntropin tests, dexamethasone pretreatment increased the dehydroepiandrosterone increment compared with no pretreatment.

    In plain wordsIn cosyntropin tests, the dehydroepiandrosterone rise was greater with dexamethasone pretreatment than without it.

    Outcome
    IncreaseDehydroepiandrosterone increment
    Study

    n: not reported in source

    Comparator
    Cosyntropin test without dexamethasone pretreatment
    Outcome group
    Adrenal Function · Endocrine and hormones

    Source sentences

    Summary
    However, since post-dex baseline concentrations of adrenal steroids were lower, the delta to ACTH was significantly greater for the major adrenal secretory products, 17 alpha-hydroxypregnenolone (3 beta, 17 alpha-dihydroxypregn-5-ene-20-one), dehydroepiandrosterone, and cortisol (F).
    2 context sentences
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

  4. 04HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In paired cosyntropin tests, mean cortisol at 30 minutes was 26.0 ± 4.4 micrograms/dl without dexamethasone and 23.8 ± 5.5 after pretreatment.

    In plain wordsIn cosyntropin tests, cortisol levels after stimulation were similar with and without dexamethasone pretreatment.

    Outcome
    No significant changeCortisol concentration after stimulation
    Study

    n: not reported in source

    Comparator
    Cosyntropin test without dexamethasone pretreatment
    Outcome group
    Adrenal Function · Endocrine and hormones

    Measurements

    Cortisol
    26 micrograms/dl
    without dex
    SD
    4.4 micrograms/dl
    without dex
    Cortisol
    23.8 micrograms/dl
    after dex
    SD
    5.5 micrograms/dl
    after dex

    Source sentences

    Summary
    For example, for all paired tests, the mean plasma F values achieved 30 min post-ACTH were 26.0 +/- 4.4 (+/- SD) micrograms/dl without dex and 23.8 +/- 5.5 micrograms/dl after dex.
    3 context sentences
    Summary · context
    Dex did not alter the absolute plasma steroid levels achieved in response to ACTH.
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

  5. 05HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In paired cosyntropin tests, dexamethasone increased the cortisol increment from 13.3 ± 4.8 to 19.4 ± 3.3 micrograms/dl (P < 0.001).

    In plain wordsIn cosyntropin tests, cortisol rose more after dexamethasone pretreatment than without it.

    Outcome
    IncreaseCortisol increment after stimulation
    Study

    n: not reported in source

    Comparator
    Cosyntropin test without dexamethasone pretreatment
    Outcome group
    Adrenal Function · Endocrine and hormones

    Measurements

    Cortisol increment
    13.3 micrograms/dl
    without dex
    SD
    4.8 micrograms/dl
    without dex
    Cortisol increment
    19.4 micrograms/dl
    after dex
    SD
    3.3 micrograms/dl
    after dex
    P
    < 0.001
    paired comparison

    Source sentences

    Summary
    In contrast, the mean delta of plasma F 30 min post-ACTH was less without (13.3 +/- 4.8 micrograms/dl) than after (19.4 +/- 3.3 micrograms/dl) dex (P less than 0.001).
    2 context sentences
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

  6. 06HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In follicular-phase women, dexamethasone-prepared cosyntropin tests showed skewed 21-hydroxylase efficiency without clear separation between 15% of the population and CAH heterozygotes.

    In plain wordsIn follicular-phase women, prepared cosyntropin tests did not clearly separate CAH carriers from 15% of the population.

    Outcome
    Not applicableApparent 21-hydroxylase efficiency distribution
    Study

    n: not reported in source

    Comparator
    Women heterozygous for CAH
    Outcome group
    Adrenal Function · Endocrine and hormones

    Measurements

    Population without clear separation
    15%
    follicular phase

    Source sentences

    Summary
    Apparent 21-hydroxylase efficiency, computed from dex-prepared tests, was found in follicular phase women to have a markedly skewed distribution without clear demarcation between 15% of the population and CAH heterozygotes.
    2 context sentences
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

  7. 07HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In dexamethasone-pretreated women, the 17-hydroxyprogesterone level after cosyntropin was higher in the luteal phase than the follicular phase.

    In plain wordsIn pretreated women, the hormone level after cosyntropin was higher in the luteal phase than the follicular phase.

    Outcome
    Increase17-hydroxyprogesterone concentration after stimulation
    Study

    n: not reported in source

    Comparator
    Follicular phase
    Outcome group
    Adrenal Function · Endocrine and hormones

    Source sentences

    Summary
    In the luteal phase, although the plasma 17-hydroxyprogesterone level at 30 min was higher, a response to ACTH was not consistently found, averaging only 22 +/- 26 ng/dl, in contrast to the consistent 52 +/- 15 ng/dl response in the follicular phase.
    3 context sentences
    Summary · context
    Luteal phase responses differed from follicular phase responses in dex-pretreated women in the magnitude of the 17-hydroxyprogesterone response.
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

  8. 08HumanNot a test of Cosyntropin aloneNon-randomized trialActivity measurement

    In dexamethasone-pretreated women, the cosyntropin response averaged 22 ± 26 ng/dl in the luteal phase versus 52 ± 15 in the follicular phase.

    In plain wordsIn pretreated women, the hormone rise after cosyntropin was smaller and inconsistent in the luteal phase compared with the follicular phase.

    Outcome
    Decrease17-hydroxyprogesterone increment
    Study

    n: not reported in source

    Comparator
    Follicular phase
    Outcome group
    Adrenal Function · Endocrine and hormones

    Measurements

    17-hydroxyprogesterone response
    22 ng/dl
    luteal phase
    SD
    26 ng/dl
    luteal phase
    17-hydroxyprogesterone response
    52 ng/dl
    follicular phase
    SD
    15 ng/dl
    follicular phase

    Source sentences

    Summary
    In the luteal phase, although the plasma 17-hydroxyprogesterone level at 30 min was higher, a response to ACTH was not consistently found, averaging only 22 +/- 26 ng/dl, in contrast to the consistent 52 +/- 15 ng/dl response in the follicular phase.
    3 context sentences
    Summary · context
    Luteal phase responses differed from follicular phase responses in dex-pretreated women in the magnitude of the 17-hydroxyprogesterone response.
    Summary · context
    ACTH tests were performed with and without dexamethasone (dex) pretreatment to clarify the nature of the relationship between the absolute and incremental response (delta) to ACTH in normal men and women, hirsute women, adrenarchal children, and women heterozygous for congenital adrenal hyperplasia (CAH).
    Summary · context
    Cosyntropin was given as a 10 micrograms/m2 iv bolus dose at 0800-1000 h; dex (1 mg/m2) was given at 2200-2400 h the night before.

    In this study, Cosyntropin was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking Cosyntropin.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Version 2Current

    28 Oct 2026, 02:03 UTC

    Study results updated

  2. Version 1

    27 Oct 2026, 16:37 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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