Evidence map›Paper›PMID 33770352›Full record

ReviewReviews in endocrine & metabolic disorders2021

Investigation of the Hypothalamo-pituitary-adrenal (HPA) axis: a contemporary synthesis.

Zuleyha Karaca, Ashley Grossman, Fahrettin Kelestimur

Abstract readReview
PubMed Publisher
In one paragraph

Review in Reviews in endocrine & metabolic disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
6.7field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. [European journal of nuclear medicine and molecular imaging · 2026
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  14. Pharmaceuticals (Basel, Switzerland) · 2024
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  18. Cardiovascular disease and depression: a narrative review.Frontiers in cardiovascular medicine · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 2 countries.

Zuleyha KaracaDepartment of Endocrinology, Erciyes University, Medical School, Kayseri, Turkey.
Ashley GrossmanCentre for Endocrinology, Barts and London School of Medicine, London, UK.
Fahrettin KelestimurDepartment of Endocrinology, Yeditepe University, Medical School, Istanbul, Turkey. fktimur@erciyes.edu.tr.
Erciyes University · TROxford Centre for Diabetes, Endocrinology and Metabolism · GBYeditepe University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The hypothalamo-pituitary-adrenal (HPA) axis is one of the main components of the stress system. Maintenance of normal physiological events, which include stress responses to internal or external stimuli in the body, depends on appropriate HPA axis function. In the case of severe cortisol deficiency, especially when there is a triggering factor, the patient may develop a life-threatening adrenal crisis which may result in death unless early diagnosis and adequate treatment are carried out. The maintenance of normal physiology and survival depend upon a sufficient level of cortisol in the circulation. Life-long glucocorticoid replacement therapy, in most cases meeting but not exceeding the need of the patient, is essential for normal life expectancy and maintenance of the quality of life. To enable this, the initial step should be the correct diagnosis of adrenal insufficiency (AI) which requires careful evaluation of the HPA axis, a highly dynamic endocrine system. The diagnosis of AI in patients with frank manifestations is not challenging. These patients do not need dynamic tests, and basal cortisol is usually enough to give a correct diagnosis. However, most cases of secondary adrenal insufficiency (SAI) take place in a gray zone when clinical manifestations are mild. In this situation, more complicated methods that can simulate the response of the HPA axis to a major stress are required. Numerous studies in the assessment of HPA axis have been published in the world literature. In this review, the tests used in the diagnosis of secondary AI or in the investigation of suspected HPA axis insufficiency are discussed in detail, and in the light of this, various recommendations are made.

Indexed as

Adrenal InsufficiencyHypothalamo-Hypophyseal SystemHumansHydrocortisonePituitary-Adrenal SystemQuality of LifeHydrocortisoneACTH stimulation testCortisolGlucagon stimulation testHypothalamo-pituitary-adrenal (HPA) axisInsulin tolerance testMetyrapone test

Identifiers

PMID33770352
OpenAlexW3139011731

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.