Abstract:
CONTEXT:Measurements of plasma methoxytyramine, the O-methylated dopamine metabolite, are useful for detecting rare dopamine-producing pheochromocytomas and paragangliomas (PPGLs) and head and neck paragangliomas (HNPGLs), but utility for screening beyond that achieved using standard measurements of normetanephrine and metanephrine is unclear. OBJECTIVE:Evaluation of the additional utility of methoxytyramine compared to plasma normetanephrine and metanephrine for diagnosis of PPGLs and HNPGLs. DESIGN:Comparative prospective study. METHODS:Comparison of mass spectrometric-based measurements of plasma methoxytyramine, normetanephrine and metanephrine in 1963 patients tested for PPGLs at six tertiary medical centers according to reference intervals verified in 423 normotensive and hypertensive volunteers. RESULTS:Of the screened patients, 213 had PPGLs and 38 HNPGLs. Using an upper cut-off of 0.10 nmol/L for methoxytyramine, 0.45 nmol/L for metanephrine and age-specific upper cut-offs for normetanephrine, diagnostic sensitivity with the addition of methoxytyramine increased from 97.2% to 98.6% for patients with PPGLs and from 22.1% to 50.0% for patients with HNPGLs, with a small decrease in specificity from 95.9% to 95.1%. Addition of methoxytyramine did not significantly alter areas under receiver operating characteristic curves for patients with PPGLs (0.984 vs 0.991), but did increase (P < 0.05) areas for patients with HNPGLs (0.627 vs 0.801). Addition of methoxytyramine also increased the proportion of patients with PPGLs who showed highly positive predictive elevations of multiple metabolites (70.9% vs 49.3%). CONCLUSIONS:While the benefit of additional measurements of plasma methoxytyramine for the detection of PPGLs is modest, the measurements do assist with positive confirmation of disease and are useful for the detection of HNPGLs.
journal_name
Eur J Endocrinoljournal_title
European journal of endocrinologyauthors
Rao D,Peitzsch M,Prejbisz A,Hanus K,Fassnacht M,Beuschlein F,Brugger C,Fliedner S,Langton K,Pamporaki C,Gudziol V,Stell A,Januszewicz A,Timmers HJLM,Lenders JWM,Eisenhofer Gdoi
10.1530/EJE-17-0077subject
Has Abstractpub_date
2017-08-01 00:00:00pages
103-113issue
2eissn
0804-4643issn
1479-683Xpii
EJE-17-0077journal_volume
177pub_type
杂志文章,多中心研究abstract::Prostate growth is known to be controlled by steroids such as androgens and estradiol. For this reason steroids (estradiol, adrenal androgens) or steroid inhibitors are commonly used as palliative treatments for prostate carcinoma. In view of the pivotal role played by Ca2+ ions in cell proliferation, we decided to in...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1350367
更新日期:1996-09-01 00:00:00
abstract:OBJECTIVE:Cardiovascular disease (CVD) occurs frequently and may progress more rapidly in overt hypothyroidism (OVH). However, the role of mild thyroid failure as a risk factor for CVD is not clear. This study is aimed at exploring the association between subclinical hypothyroidism (SCH) and coronary artery disease (CA...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-11-0014
更新日期:2011-07-01 00:00:00
abstract:Objective:The challenge of finding patients with the rare conditon of diabetes insipidus in need of vasopressin treatment is demanding. The guidelines for performing the fluid deprivation test and interpreting the results are abundant. We evaluated the discriminative capacity of the fluid deprivation test in patients w...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-20-0759
更新日期:2021-01-01 00:00:00
abstract::Major hormonal changes emerge during pregnancy. The pituitary gland is one of the most affected organs with altered anatomy and physiology. The pituitary gland is enlarged as a result of lactotroph hyperplasia. Due to physiological changes in the pituitary and target hormone levels, binding globulins, and placental ho...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0923
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVE:Leptin secretion is reduced by low temperatures in experimental animals, and this effect has been explained as an adaptive mechanism to cold environments. This study investigated the in vitro effects of cold exposure on human white adipose tissue. DESIGN:To understand whether the low temperature action is a ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1420195
更新日期:2000-02-01 00:00:00
abstract:OBJECTIVE:Congenital hypothyroidism (CH), the most common neonatal metabolic disorder, is characterized by impaired neurodevelopment. Although several candidate genes have been associated with CH, comprehensive screening of causative genes has been limited. DESIGN AND METHODS:One hundred ten patients with primary CH w...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-17-1017
更新日期:2018-06-01 00:00:00
abstract:INTRODUCTION:In genetically predisposed individuals, exogenous factors (including pollution) influence the development of Hashimoto's thyroiditis/chronic lymphocytic thyroiditis (CLT). CLT may also be a risk factor for associated thyroid cancer. Few data are available on the role of pollution from petrochemical complex...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-14-0864
更新日期:2015-04-01 00:00:00
abstract::Ahead of Print article withdrawn by publisher. ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0870
更新日期:2009-09-30 00:00:00
abstract:BACKGROUND/AIM:Our previous studies showed that administration of dexamethasone plus food increased serum leptin levels 100% more than dexamethasone alone. We hypothesized that this increase in leptin from the meal could result directly from the provision of fuel metabolites rather than from the meal-induced rise in in...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章
doi:10.1530/eje.0.1480669
更新日期:2003-06-01 00:00:00
abstract:OBJECTIVE:The kisspeptin/GPR54 pathway has been proven to be crucial in the process of puberty onset, yet the polymorphisms in the KISS1 gene and their relationships with central precocious puberty (CPP) have not been investigated. This study was performed to reveal the relationship between the gene and the disease. D...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-07-0061
更新日期:2007-07-01 00:00:00
abstract::Little is known about patients with malignant digestive neuroendocrine tumours (MD-NETs). Although their incidence is increasing, MD-NETs remain a rare cancer, representing 1% of digestive cancers. Most MD-NETs are well-differentiated. MD-NET poorly differentiated carcinomas account for 20% of cases on average. Anatom...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-12-0418
更新日期:2013-03-15 00:00:00
abstract:OBJECTIVE:Glucocorticoid excess leads to insulin resistance. This study explores the effects of glucocorticoids on the glucose transport system and insulin signalling in rat adipocytes. The interaction between glucocorticoids and high levels of insulin and glucose is also addressed. DESIGN AND METHODS:Isolated rat adi...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1460419
更新日期:2002-03-01 00:00:00
abstract:OBJECTIVE:To analyse trends in diagnostic practices of thyroid diseases and to relate them to the increase in thyroid cancer incidence in France over time. DESIGN:From 1980 to 2000, a French retrospective multicentric (three endocrinology and three nuclear medicine centres) study of thyroid diseases was conducted on 2...
journal_title:European journal of endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1530/eje.0.1500133
更新日期:2004-02-01 00:00:00
abstract::The ob protein, termed leptin, is produced by adipocytes and is thought to act as an afferent satiety signal regulating weight through suppressing appetite and stimulating energy expenditure in humans and/or rodents. Insulin has been found to be a potent stimulator of leptin expression in rodents. It is unclear at pre...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1380501
更新日期:1998-05-01 00:00:00
abstract::Based on experimental and animal models, epidemiological data from non-acromegaly populations, and longitudinal and cross-sectional cohorts of patients with acromegaly, a potential association between acromegaly and cancer has long been hypothesized, in particular colorectal cancer, and, to a lesser extent, breast, th...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-16-0178
更新日期:2016-10-01 00:00:00
abstract::To study interactions between insulin-like growth factor-II (IGF-II) and growth hormone (GH) in vivo, we crossed hemizygous transgenic mice carrying phosphoenolpyruvate carboxykinase (PEPCK)-IGF-II fusion genes with hemizygous PEPCK-bovine GH (bGH) transgenic mice. Offspring harbouring both transgenes (IB), the IGF-II...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1370701
更新日期:1997-12-01 00:00:00
abstract:OBJECTIVE:To investigate the frequencies of the major maturity-onset diabetes of the young (MODY) subtypes in a panel of Spanish families and to assess phenotypic differences in patients with the different subtypes of MODY. METHODS:Forty-eight subjects from twenty families with clinical diagnosis of MODY were studied....
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1420380
更新日期:2000-04-01 00:00:00
abstract::Patients with pituitary tumours, ensuing hormonal abnormalities and mass effects are usually followed in multidisciplinary pituitary clinics and can represent a management challenge even during the times of non-pandemic. The COVID-19 pandemic has put on hold routine medical care for hundreds of millions of patients ar...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-20-0473
更新日期:2020-07-01 00:00:00
abstract:OBJECTIVE:The evidence that stress may provoke Graves' hyperthyroidism in genetically susceptible subjects is substantial. Whether exposure to stress is related to the severity of thyrotoxicosis has not been studied. Advancing age is associated with not only less severe Graves' hyperthyroidism but also self-reported st...
journal_title:European journal of endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1530/EJE-08-0573
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:Primary aldosteronism (PA) is the most common form of secondary hypertension, while Gitelman's syndrome (GS) is the most common inherited renal tubular disease. However, coexistence of these two diseases has never been previously reported. AIM AND SUBJECTS: The aim of our study was to describe the associatio...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0271
更新日期:2009-08-01 00:00:00
abstract:CONTEXT:Adult growth hormone (GH) deficiency (GHD) is diagnosed by provocative testing of GH secretion. OBJECTIVE:To improve the diagnostic accuracy of GH-releasing hormone (GHRH) plus arginine (GARG) testing, we evaluated the influence of age, BMI and sex and established normative data for an automatic immunoassay sp...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-16-0668
更新日期:2017-03-01 00:00:00
abstract::In non-functioning pituitary macroadenoma (NFMA), hyperprolactinaemia (hyperPRL) is considered to be a sign of hypothalamic-pituitary dysregulation, but it is unknown whether hyperPRL is associated with an increased frequency of pituitary hormone deficiencies. Forty consecutive patients with histology-proven NFMA were...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1350299
更新日期:1996-09-01 00:00:00
abstract:OBJECTIVE:Paraoxonase-1 (PON-1), which has PON and arylesterase activities, is a high-density lipoprotein (HDL)-bound antioxidant enzyme that inhibits atherosclerosis. Diabetes has been shown to have an impact on oxidative stress. The effect of metabolic syndrome (MetS) on oxidative stress and PON-1 has been shown befo...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0732
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVE:Previously, it has been demonstrated that receptor protein tyrosine phosphatase sigma (RPTPsigma) is involved in glucose homeostasis and insulin signaling in several animal models. The aim of this study was to evaluate whether polymorphisms in this gene influence the development of type 2 diabetes (T2D) in hu...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-07-0114
更新日期:2007-10-01 00:00:00
abstract:OBJECTIVE:To detect exogenous recombinant human GH (rhGH) abuse in female athletes. DESIGN:GH-dependent markers were assayed in serum of 100 female athletes (control group) and in a subgroup of nine female subjects treated with rhGH (0.09 IU/kg body weight, 6 days/week for 3 weeks). METHODS:Cut-off values (mean+2 s.d...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-08-0884
更新日期:2009-05-01 00:00:00
abstract::Bone mineral density (BMD), bone mineral content and body composition were determined in 47 middle-aged (mean age 47.9 +/- 1.1 years) women with Turner's syndrome. Bone mineral density was measured in the forearm, femoral neck and total body. The women investigated had a BMD lower than the normal mean. When expressed ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1320047
更新日期:1995-01-01 00:00:00
abstract::Tall stature is defined as a height of more than 2 standard deviations (s.d.) above average for same sex and age. Tall individuals are usually referred to endocrinologists so that hormonal disorders leading to abnormal growth are excluded. However, the majority of these patients have familial tall stature or constitut...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-16-1054
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:The somatic point mutation in the BRAF gene, which results in a valine-to-glutamate substitution at residue 600 (BRAF(V600E)), is an ideal hallmark of papillary thyroid carcinoma (PTC). However, its prevalence is varyingly reported in different studies, and its expression in the follicular variant PTC is cont...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.02072
更新日期:2006-02-01 00:00:00
abstract::none. ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-20-1426
更新日期:2021-01-01 00:00:00
abstract::Sex steroids are important for the growth and maintenance of both the female and the male skeleton. However, the relative contribution of androgens versus estrogens in the regulation of the male skeleton is unclear. Experiments using mice with inactivated sex steroid receptors demonstrated that both activation of the ...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-09-0118
更新日期:2009-06-01 00:00:00