Abstract:
:Liquid-chromatography - tandem mass spectrometry (LC-MS/MS) is becoming the method of choice for clinical steroid analysis. In most instances, it has the advantage of higher sensitivity, better reproducibility and greater specificity than commercial immunoassay techniques. The method requires only minimal sample preparation and a small sample volume. Furthermore, it has the potential to analyze multiple steroids simultaneously. Modern instruments guarantee high throughput, allowing an affordable price for the individual assay. All this makes LC-MS/MS an attractive method for use in a clinical setting. Reliable reference ranges for the detected analytes are the pre-requisite for their clinical use. If these are available, LC-MS/MS can find application in congenital disorders of steroid metabolism, such as congenital adrenal hyperplasia, disorders of sex development and disorders of salt homeostasis, as well as in acquired disorders of steroid metabolism, such as primary aldosteronism, Cushing's disease, Addison's disease, and hyperandrogenemia, as well as in psychiatric disease states such as depression or anxiety disorders. The principles of LC-MS/MS for steroid measurement, the pros and cons of LC-MS/MS compared with conventional immunoassays and the possible applications in clinical routine, with a special focus on pediatric endocrinology needs, are discussed here.
journal_name
J Endocrinol Investjournal_title
Journal of endocrinological investigationauthors
Kulle AE,Welzel M,Holterhus PM,Riepe FGdoi
10.3275/7843subject
Has Abstractpub_date
2011-10-01 00:00:00pages
702-8issue
9eissn
0391-4097issn
1720-8386pii
7843journal_volume
34pub_type
杂志文章,评审abstract::In a 12-yr-old boy growth arrest occurred after severe head trauma. Evaluation of pituitary endocrine function revealed isolated growth hormone (GH) deficiency. Lack of GH response to GH-releasing factor indicated that the responsible lesion was most likely to be localized in the pituitary gland. GH substitution resul...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349069
更新日期:1988-06-01 00:00:00
abstract:PURPOSE:Growth hormone deficiency (GHD) is the most common endocrine late effect observed in childhood cancer survivors (CCS) previously submitted to cranial irradiation. Radiation therapy can also increase the risk of second neoplasms (SNs). Since in previous studies GH replacement therapy was associated with increase...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-014-0179-1
更新日期:2015-02-01 00:00:00
abstract::The research suggests that adiponectin plays an important role in sensitizing insulin action. It is interesting to find that the lower levels of adiponectin exist in the plasma of obese and Type 2 diabetes subjects and in the adipose tissue of obese, db/db mice, and insulin-resistant individuals. However, the underlyi...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03346688
更新日期:2011-01-01 00:00:00
abstract::This report describes the results of the second part of the collaborative study organized by a working group sponsored by the Community Bureau of Reference of the European Community Commission. The whole study was designed to understand the causes of discrepancy among LH immunoassay methods. In the parent report we de...
journal_title:Journal of endocrinological investigation
pub_type: 临床试验,杂志文章
doi:10.1007/BF03347727
更新日期:1994-06-01 00:00:00
abstract:AIM:Adult subjects with Prader-Willi syndrome (PWS) may show several conditions that are associated with an activation of innate immunity such as obesity, deficient GH secretion or hypogonadism. Our aim was to study whether obese adult PWS subjects show an additional low-grade systemic inflammation (LGSI) in relation t...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345585
更新日期:2008-02-01 00:00:00
abstract::Although the role of biogenic amines in the regulation of gonadotropin release has been studied extensively, the precise role of dopamine (DA) in stimulating LHRH and/or LH release is still controversial. In the present study 6 eugonadal women, aged 20-30, were given an LHRH infusion on day 6 of the menstrual cycle an...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349415
更新日期:1981-01-01 00:00:00
abstract::GH response to an iv bolus of growth-hormone-releasing hormone (GHRH 1-44, 2 micrograms/kg iv) was evaluated in 17 prepubertal children with total GH deficiency (GHD), 6 with partial GHD and in 7 prepubertal normal but short children tested as control. GH response to conventional pharmacological (insulin and arginine ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03346976
更新日期:1986-12-01 00:00:00
abstract::Estrogen deficiency in females and androgen deficiency in males may harm periosteal and endosteal apposition, reduce bone size and both cortical and trabecular thickness, modifying in this way the bone structure later in life. To date, few systematic studies on bone mineral density (BMD) and hypogonadism in adolescent...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03346513
更新日期:2009-07-01 00:00:00
abstract::During a multicentric pilot screening program for congenital hypothyroidism a comparison between the results obtained from Urbino, an area characterized by low iodine supply and endemic goiter, and Rome, a non-endemic area, has been made. The evaluation of neonatal urinary iodine excretion in the two areas showed sign...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350156
更新日期:1988-04-01 00:00:00
abstract::A 34-yr-old nulliparous black woman presented with hair loss, facial hirsutism, irregular menses and infertility associated with greatly increased serum total testosterone levels. The adrenal glands and the ovaries were normal on radiological and ultrasonographic investigation. Catheterization of the veins draining fr...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348033
更新日期:1997-12-01 00:00:00
abstract:PURPOSE:Cold exposure activates the hypothalamus-pituitary-thyroid (HPT) axis, response blunted by previous acute stress or corticosterone administration. Chronic stressors can decrease serum T3 concentration, and thyrotropin-releasing hormone (Trh) expression in the paraventricular nucleus (PVN), but impact on the res...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-020-01328-z
更新日期:2020-07-30 00:00:00
abstract:INTRODUCTION:Interleukins and cytokines play an important role in the pathogenesis of many cancers.We aimed to evaluate the interleukin (IL)-6 gene polymorphisms in patients with papillary thyroid carcinoma (PTC) and control subjects. MATERIAL AND METHODS:In this study, 42 patients with PTC and 340 healthy controls we...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03346494
更新日期:2009-06-01 00:00:00
abstract::An equimolar mixture of 3H-E1-S2 and 14C-E1 was injected in one shot into the inferior vena cava near the heart of female Japanese monkey. Following the injection, blood was collected from the aortic arch at intervals of 15 s over a period of 10 min. The concentration of radioactivities in the whole blood and serum wa...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348447
更新日期:1984-10-01 00:00:00
abstract::Pheochromocytoma (PHEO) occasionally associates with pathological lesions of the adrenal cortex. In most of them, ectopic adrenocorticotropic hormone (ACTH) produced by PHEO resulted in bilateral adrenocortical hyperplasia. The coexistence of PHEO and pre-clinical Cushing's syndrome (PCS) of the same adrenal gland has...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03347247
更新日期:2005-06-01 00:00:00
abstract::Whole-body vibration is reported to increase muscle performance, bone mineral density and stimulate the secretion of lipolytic and protein anabolic hormones, such as GH and testosterone, that might be used for the treatment of obesity. To date, as no controlled trial has examined the effects of vibration exercise on t...
journal_title:Journal of endocrinological investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF03351056
更新日期:2004-04-01 00:00:00
abstract::Plasma levels and 24-h urinary excretion of cyclic AMP and cyclic GMP were measured in 18 patients with hyperthyroidism, 7 patients with hypothyroidism and 25 normal subjects. Mean plasma and urinary levels of both cyclic AMP and cyclic GMP were significantly positive correlations between the serum thyroid hormone lev...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350603
更新日期:1983-06-01 00:00:00
abstract::Short stature homeobox-containing (SHOX) gene mutations causing haploinsufficiency have been reported in idiopathic short stature, but the real prevalence of this defect in the population with growth failure is debated. Based on current data, the prevalence of SHOXdefect (SHOX-D) has been calculated to have occurred i...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:
更新日期:2010-06-01 00:00:00
abstract:PURPOSE:Hypercortisolism has detrimental effects on bone metabolism with the consequences of bone loss and bone fractures. We aimed to evaluate the frequency of vertebral fragility fractures and to determine the factors associated with Cushing's syndrome (CS). METHODS:A total of 135 patients diagnosed with Cushing's s...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-020-01496-y
更新日期:2021-01-09 00:00:00
abstract:PURPOSE:Polycystic ovary syndrome (PCOS) is a common heterogeneous endocrine disorder companied with neuroendocrine and metabolic disorders. Gut microbiota has been implicated to play a key role in metabolic diseases and the production of neurotransmitters. Previous studies have reported the alterations in the gut micr...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-020-01481-5
更新日期:2021-01-02 00:00:00
abstract:BACKGROUND:In the last decades, a higher incidence of congenital hypothyroidism (CH) has been recorded in Italy (1:1940) and worldwide, mainly due to the shift to lower screening TSH cutoffs. Although CH can also be caused by dysgenetic defects, most CH cases have recently been found to be more frequently associated wi...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/s40618-015-0288-5
更新日期:2015-08-01 00:00:00
abstract:INTRODUCTION:Carcinoids are mainly found in the gastrointestinal (65%) and bronchopulmonary tract (25%). These neuroendocrine tumors secrete a wide range of bioactive peptides, including gastrin releasing peptide and neuromedin B, the mammalian analogs of bombesin. The purpose of this study was to investigate the quant...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.3275/7332
更新日期:2011-10-01 00:00:00
abstract::The outcome of radioiodine therapy of Graves' hyperthyroidism was retrospectively evaluated in 274 consecutive patients treated from 1975 to 1984. At 1-yr follow-up, permanent hypothyroidism occurred in 36.9% of patients and the cumulative incidence of hypothyroidism progressively increased up to 79.3% after 7-10 yr. ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348615
更新日期:1990-06-01 00:00:00
abstract:BACKGROUND:Immune dysfunction is very common in diabetes mellitus (DM). However, there is no evidence whether such immune dysfunction can influence the development of DM, especially the development of diabetic nephropathy (DN). AIM:To investigate the influence of absence of T cells on DN. MATERIALS AND METHODS:Balb/c...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.3275/8962
更新日期:2013-12-01 00:00:00
abstract::We treated a 10 6/12 year old prepubertal male with hypophosphatemic rickets, who was growing poorly despite appropriate treatment with calcitriol and phosphate, with exogenous growth hormone (for an initial trial period of 4 months, followed by 14 months of continuous treatment at a dose of 4 IU three times weekly) e...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349633
更新日期:1990-11-01 00:00:00
abstract::A 57-year-old man with pituitary metastasis from renal cell carcinoma is reported. He underwent right nephrectomy and total pancreatectomy for renal cell carcinoma and its pancreatic metastasis, respectively. Imaging studies showed an intrasellar mass lesion. The examination revealed panhypopituitarism, diabetes insip...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/BF03345815
更新日期:1992-10-01 00:00:00
abstract::Eleven patients with Paget's disease of bone, treated intermittently for 2-4 years with porcine calcitonin (pCT) and clinically resistant to pCT [no modifications of serum alkaline phosphatase (ALP) and urinary hydroxyproline ( uHOP ) during pCT administration] were treated with 0.5-0.25 mg/day of human calcitonin (hC...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348394
更新日期:1984-04-01 00:00:00
abstract::The study was conducted to assess the GH-IGF-I axis in non-obese women with functional hyperandrogenism (FH). Eighteen FH women aged 18-35 yr with a body weight within 20% of ideal body weight and 10 weight-matched controls were included in the study. Basal serum GH, GH-binding protein (GHBP), IGF-I, IGF-binding prote...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345102
更新日期:2002-09-01 00:00:00
abstract::A 52-year-old male presented himself with tachycardia crises which appeared first during childhood, increased in frequency without goiter or exophthalmos. Cardiac and adrenergic diseases were excluded. The thyroid function was normal regarding T4, free T4 and T3, TBG, radioiodine uptake, TSH and T3 suppressibility; ho...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349636
更新日期:1990-11-01 00:00:00
abstract::Plasma insulin immunoreactivity (IRI) results from high molecular weight substances with insulin immunoreactivity (HWIRI), proinsulin (PI) and insulin (I). Their respective concentrations and percentages of IRI were determined preoperatively in the hepatic and peripheral circulations and after surgery in the latter tw...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350520
更新日期:1982-09-01 00:00:00
abstract::The type of dietary fat affects the action of insulin by changes induced in the fatty acid composition of cell membranes. Little is known, however, about the effects of dietary fatty acids on insulin secretion or the possible relation between the fatty acid composition of the membrane phospholipids and insulin secreti...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03344034
更新日期:2002-05-01 00:00:00