Abstract:
Objective:Accurate measurement of steroid hormones remains challenging. Mass spectrometry affords a reliable means for quantitating steroid profiles accurately. Our objective was to establish and define (1) the extent of diurnal fluctuations in steroid concentrations that potentially necessitate strict adherence to time of sample acquisition and (2) time-dependent steroid reference intervals. Design:Nine steroid markers were examined in couplets in males and females. Methods:Using isotope dilution high-performance liquid chromatography-tandem mass spectrometric (LC-MS/MS) analysis, we developed a multi-steroid profile requiring only a minimal volume of serum (0.1 mL). Couplet (AM and PM) measurements of steroid hormones for 120 healthy females (F) and 62 healthy males (M) were obtained. Patients were recruited from several participating centers. Results:The following diurnal values were noted to be significantly different in both females and males: cortisone, cortisol, corticosterone, 11 deoxycortisol (11 DOC), androstenedione, 17a-hydroxyprogesterone (17 OHP) and dehydroepiandrosterone (DHEA). Testosterone was only found to have significant diurnal variance in males. Progesterone showed no significant difference in AM and PM values for either groups and thus may provide an internal control. Conclusions:When diagnosing endocrine disorders, it is imperative to acknowledge the 24-h diurnal variation of the biochemical steroid markers. We highlight the importance of standardization of collection times and appropriate implementation of reference intervals. Precis:We identify diurnal fluctuations in steroid concentrations with time of day and emphasize the importance of adhering to firm time of sample acquisition.
journal_name
Endocr Connectjournal_title
Endocrine connectionsauthors
Parikh TP,Stolze B,Ozarda Y,Jonklaas J,Welsh K,Masika L,Hill M,DeCherney A,Soldin SJdoi
10.1530/EC-18-0417subject
Has Abstractpub_date
2018-12-01 00:00:00pages
1354-1361issue
12issn
2049-3614pii
EC-18-0417journal_volume
7pub_type
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-18-0428
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND:Autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED) is a rare autosomal recessive disorder caused by mutations of the autoimmune regulator (AIRE) gene, whose loss of function leads to the escape of self-reactive T cells from the thymus and autoimmunity. APECED patients typically develop t...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-12-0074
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abstract::Sex development is a process under genetic control directing both the bi-potential gonads to become either a testis or an ovary, and the consequent differentiation of internal ducts and external genitalia. This complex series of events can be altered by a large number of genetic and non-genetic factors. Disorders of s...
journal_title:Endocrine connections
pub_type: 杂志文章
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0088
更新日期:2019-04-01 00:00:00
abstract::The experience in the field of islet transplantation shows that it is possible to replace β cells in a patient with type 1 diabetes (T1D), but this cell therapy is limited by the scarcity of organ donors and by the danger associated to the immunosuppressive drugs. Stem cell therapy is becoming a concrete opportunity t...
journal_title:Endocrine connections
pub_type: 杂志文章,评审
doi:10.1530/EC-18-0012
更新日期:2018-03-01 00:00:00
abstract:Objective:The remarkable success of iodine deficiency disorders (IDD) elimination in China has been achieved through a mandatory universal salt iodization (USI) program. The study aims to estimate the relationship between urinary iodine concentration (UIC) and iodine content in edible salt to assess the current iodine ...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0568
更新日期:2020-05-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-18-0055
更新日期:2018-05-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0325
更新日期:2019-09-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0103
更新日期:2019-04-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
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更新日期:2020-08-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-20-0480
更新日期:2020-12-01 00:00:00
abstract::According to its incidence patterns, colorectal cancer (CRC) tends to occur more frequently in males than in females, and the evidence shows that CRC is a hormone-related tumor. These findings indicate that androgen receptor (AR) gene methylation might be important for the regulation of the CRC risk in the different s...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0122
更新日期:2019-07-01 00:00:00
abstract::This study aimed to evaluate the evolving trends in clinicopathological features of pancreatic neuroendocrine tumors and to analyze the predictors of recurrence after curative resection. Data collected retrospectively from a single center between January 1990 and December 2017 were analyzed. Patients were categorized ...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0282
更新日期:2019-07-01 00:00:00
abstract::The rapid increase of obesity during the last decades and its future prospects are alarming. Besides the general discussed causes of obesity, the 'Developmental Origins of Health and Disease' (DOHaD) hypothesis received more attention in recent years. This hypothesis postulates an adverse influence during early develo...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0549
更新日期:2020-07-01 00:00:00
abstract::Many biomarkers are associated with type 2 diabetes (T2D) risk in epidemiological observations. The aim of this study was to identify and summarize current evidence for causal effects of biomarkers on T2D. A systematic literature search in PubMed and EMBASE (until April 2015) was done to identify Mendelian randomizati...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-15-0087
更新日期:2015-12-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-17-0001
更新日期:2017-04-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-18-0123
更新日期:2018-05-01 00:00:00
abstract::The antihypertensive actions of glucagon-like peptide-1 (GLP1) receptor agonists have been linked to the release of atrial natriuretic peptide (ANP) in mice. Whether a GLP1-ANP axis exists in humans is unknown. In this study, we examined 12 healthy young males in a randomized, controlled, double-blinded, single-day, c...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-13-0087
更新日期:2014-01-21 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-17-0232
更新日期:2017-11-01 00:00:00
abstract::Thyroid hormones stimulate bone turnover in adults by increasing osteoclastic bone resorption. TSH suppressive therapy is usually applied in patients with differentiated thyroid cancer (DTC) to improve the disease outcome. Over the last decades several authors have closely monitored the potential harm suffered by the ...
journal_title:Endocrine connections
pub_type: 杂志文章,评审
doi:10.1530/EC-20-0167
更新日期:2020-07-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-17-0095
更新日期:2017-08-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-18-0039
更新日期:2018-03-01 00:00:00
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journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0124
更新日期:2019-09-01 00:00:00
abstract:Background:A high level of free triiodothyronine (FT3) within the reference range may be a potential metabolic risk marker. However, the relationship between different fat depots and FT3 has remained unclear. Objective:We aimed to explore the relationships between segmental fat distribution and FT3 in euthyroid middle...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-19-0394
更新日期:2019-10-01 00:00:00
abstract::Classic galactosemia is a rare inborn error of galactose metabolism with a birth prevalence of about 1/30 000-60 000. Long-term complications occurring despite dietary treatment consist of premature ovarian insufficiency (POI) and neurodevelopmental impairments. We performed with the French Reference Centers for Rare ...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-21-0013
更新日期:2021-01-01 00:00:00
abstract::N/A. ...
journal_title:Endocrine connections
pub_type: 杂志文章,评审
doi:10.1530/EC-21-0044
更新日期:2021-01-01 00:00:00
abstract:BACKGROUND/AIMS:Growth failure is a difficult but key aspect of care in children with anorexia nervosa (AN). The effects of hGH therapy have not been studied. The aim was to investigate the effect of hGH treatment on height velocity (HV) in children with AN. METHODS:We carried out a retrospective observational study. ...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-17-0200
更新日期:2017-11-01 00:00:00
abstract:INTRODUCTION:Patients with acromegaly can be treated with surgery, medical therapy and/or radiation therapy. For the patients not being cured with surgery, treatment with somatostatin analogues (SSAs) is the primary therapy. SSA can be taken by self- or partner-administered injections in addition to being given by a nu...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-16-0038
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:Patients with non-functioning pituitary adenomas exhibit high morbidity and mortality rates. Growth hormone deficiency and high doses of glucocorticoid substitution therapy have been identified as corresponding risk factors. Interestingly, high levels of endogenous cortisol in, e.g., patients with post-trauma...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-18-0362
更新日期:2018-08-01 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) is known to be associated with insulin resistance, atherosclerosis, and low serum IGF1 levels. We have described a large cohort of patients with isolated GH deficiency (IGHD) due to the c.57+1G→A mutation in the GHRH receptor gene. These subjects have increased insulin sensitiv...
journal_title:Endocrine connections
pub_type: 杂志文章
doi:10.1530/EC-14-0078
更新日期:2014-09-01 00:00:00