Abstract:
:In the last few years, molecular studies on pituitary adenomas have yielded evidence supporting a primary pituitary origin of these tumors. Although the existence of genomic alterations in tumoral cells is strongly suggested by the fact that almost all pituitary adenomas are monoclonal in origin, structural genetic abnormalities such as rearrangement, deletion or mutation, which could result in transcriptional activation, have been identified in a minority of tumors. As far as the possible loss of anti-oncogenes in pituitary tumors is concerned, gene alterations have not been found in the p53 nor in the retinoblastoma gene, while loss of chromosome 11q13 sequences, which contain the deduced location of the yet uncloned MEN-1 gene, has been reported in a subset of GH-secreting adenomas. With regard to the activation of dominant oncogenes in the process of tumor formation, activating mutations of either the Gs alpha-subunit or the ras gene have been identified in a large proportion of GH-secreting adenomas and in individual particularly invasive tumours, respectively. Promoting agents such as hypothalamic neurohormones and growth factors may be required for the selective growth of genetically altered cells. In this respect, it is worth noting that receptor/postreceptor alterations occurring in pituitary tumors may cause an increased action of stimulatory neurohormones with growth promoting properties as well as defective action of inhibitory inputs.
journal_name
Eur J Endocrinoljournal_title
European journal of endocrinologyauthors
Spada A,Vallar L,Faglia Gdoi
10.1530/eje.0.1300043subject
Has Abstractpub_date
1994-01-01 00:00:00pages
43-52issue
1eissn
0804-4643issn
1479-683Xjournal_volume
130pub_type
杂志文章,评审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::Several bone matrix protein constituents, including the major component collagen type I and the hydroxyapatite binding protein, osteocalcin, have been implicated in the regulation of bone turnover. Cortical bone osteocalcin, collagen and mineral content were studied in autosomal dominant osteopetrosis type I (ADO), a ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1300592
更新日期:1994-06-01 00:00:00
abstract::Several lines of evidence suggest that tumor necrosis factor-alpha (TNFalpha) may contribute to the pathogenesis of autoimmune thyroid disease. It is not known, however, whether increased thyroidal TNFalpha levels are associated with changes in thyroid function. The purpose of the present study was to utilize in situ ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1390539
更新日期:1998-11-01 00:00:00
abstract:OBJECTIVE:Primary aldosteronism (PA) has deleterious effects on kidney function independent of blood pressure levels. Up to now, data on effectiveness of different PA therapies regarding renal function are scarce. DESIGN AND METHODS:This prospective multi-center study included 29 patients with newly diagnosed PA evalu...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1530/EJE-12-0631
更新日期:2012-12-10 00:00:00
abstract:OBJECTIVE:The existence of genotype-phenotype correlation in multiple endocrine neoplasia type 1 (MEN1) is controversial. Two founder mutations of the MEN1 gene in Northern Finland gave us an opportunity to compare clinical features among heterozygotes of different mutations. DESIGN AND METHODS:Study cohort included 8...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-07-0195
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND AND AIM:Several basic science studies support the existence of non-genomic glucocorticoid signaling in pancreas, liver, and adipocytes, but its clinical relevance has not yet been elucidated. This study aimed at investigating the rapid effects of hydrocortisone on the human metabolic response to glucose. SU...
journal_title:European journal of endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1530/EJE-10-0282
更新日期:2010-08-01 00:00:00
abstract::X-linked adrenoleucodystrophy (ALD) has been shown to be one of the most frequent causes of Addison's disease in men. It is characterized by an impaired peroxisomal beta-oxidation of very long chain fatty acids and is associated with mutations of the ALD gene resulting in a defective peroxisomal membrane transport pro...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1370040
更新日期:1997-07-01 00:00:00
abstract::Regulatory actions of angiotensin II (AngII), which is involved in the pathophysiology of hypertension and also participates in cell proliferation and cell differentiation, are mainly mediated by AngII type 1 (AT1) receptor. Recently, activating mutations of receptors causing hyperfunctioning endocrine diseases have b...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1370262
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVES:Women with polycystic ovary syndrome (PCOS) frequently suffer from metabolic disturbances, in particular from insulin resistance. Accumulating evidence suggests that vitamin D deficiency may contribute to the development of the metabolic syndrome (MS). Hence, the aim of our study was to investigate the assoc...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0432
更新日期:2009-10-01 00:00:00
abstract:CONTEXT:There is evidence to suggest that IGF-I plays a role in regulating bone turnover. OBJECTIVE:To evaluate the relationships between serum concentrations of IGF-I and IGF-binding protein-3 (IGFBP-3), and bone metabolism markers in healthy children. DESIGN AND SETTING:Prospective cross-sectional study. SUBJECTS ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-07-0402
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:The aim of the present study was to investigate whether patients with cystic fibrosis (CF) are GH resistant with increased GH release and decreased concentrations of IGF-I as a result of malabsorption, increased catabolism and impaired glucose tolerance. DESIGN:Twenty CF patients were included, ten with norm...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章
doi:10.1530/eje.0.1400315
更新日期:1999-04-01 00:00:00
abstract:OBJECTIVE:Adult height deficit seen in Turner syndrome (TS) originates, in part, from growth retardation in utero and throughout the first 3 years of life. Earlier diagnosis enables earlier therapeutic intervention, such as with recombinant human GH (r-hGH), which may help to prevent growth retardation. In this open-la...
journal_title:European journal of endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1530/EJE-10-1048
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVE:This study aimed to analyze the autonomic control of heart rate variability (HRV) in subjects receiving chronic l-thyroxine (l-T4) treatment after total thyroidectomy and (131)I therapy for differentiated thyroid carcinoma. METHODS:Blood pressure (BP) and sympatho-vagal activity (evaluated by power spectral ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.01918
更新日期:2005-06-01 00:00:00
abstract:OBJECTIVE:Adrenocorticotropic hormone (ACTH) is the primary secretagogue stimulating secretion of adrenal androgens (AA). Yet, genetic and environmental factors are assumed to play a determining role in the regulation of their biosynthesis and thus might explain the high variability of AA levels. Here we investigate th...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.02015
更新日期:2005-11-01 00:00:00
abstract::Genetic predictors of outcome are reviewed in the context of a disease--cancer--that can be (too) simplistically described as a 'successful, invasive clone of our own tissues'. Context has many faces that determine a thyroid cancer patient's outcome beyond the influence of genetic markers. There is also plenty of evid...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-15-0605
更新日期:2016-04-01 00:00:00
abstract:CONTEXT:Steroidogenic acute regulatory (STAR) gene mutations lead to adrenal and gonadal failure. Interesting, though as yet unexplained, features are the formation of ovarian cysts and the potential presence of CNS findings. OBJECTIVE:To report biochemical, genetic, and long-term clinical data in five Greek patients ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-12-0600
更新日期:2013-02-15 00:00:00
abstract:AIMS:Reported cure rates following trans-sphenoidal surgery for microprolactinoma are variable and recurrence rates in some series are high. We wished to examine the cure rate of trans-sphenoidal surgery for microprolactinoma, and to assess the long-term complications and recurrence rate. DESIGN:A retrospective review...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1400043
更新日期:1999-01-01 00:00:00
abstract::The two pituitary gonadotrophins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), and in particular LH-stimulated high intratesticular testosterone (ITT) concentration, are considered crucial for spermatogenesis. We have revisited these concepts in genetically modified mice, one being the LH receptor ...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-18-0396
更新日期:2018-09-01 00:00:00
abstract:CONTEXT:Chronic hypoxia induces complex metabolic and endocrine adaptations. High-altitude (HA) exposure is a physiological model of hypoxia. OBJECTIVE:To further investigate the endocrine and metabolic responses to extreme HA. METHODS:We studied nine male elite climbers at sea level and at 5200 m after climbing Mt. ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-07-0355
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVE:To investigate the association between birth weight and risk of type 2 diabetes, abdominal obesity and hypertension among Chinese adults. RESEARCH METHODS AND PROCEDURES:Nine hundred and seventy-three individuals from a population-based cross-sectional survey for the prevalence of type 2 diabetes conducted i...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.02265
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:To estimate morbidity in Denmark in all patients with GH deficiency (GHD). DESIGN:Morbidity was analyzed in 1794 GHD patients and 8014 controls matched on age and gender. All records in the GHD patients were studied and additional morbidity noted. Diagnoses and dates of admissions were identified in the Nati...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-07-0523
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:Vascular endothelial growth factor (VEGF) exists in three main splice variants, characterized by 121, 165 and 189 amino acids (VEGF 121, VEGF 165 and VEGF 189) and acts via two specific receptors: VEGF-R1 or Flt-1 and VEGF-R2 or KDR. VEGF plays an important role in the pathogenesis of diabetic retinopathy. Th...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1500799
更新日期:2004-06-01 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:OBJECTIVE:Many investigators believe that basal adrenal venous sampling (AVS) should be done simultaneously, whereas others opt for sequential AVS for simplicity and reduced cost. This study aimed to evaluate the concordance of sequential and simultaneous AVS methods. DESIGN AND METHODS:Between 1989 and 2015, bilatera...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-16-0701
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:Adrenaline inhibits insulin secretion through activation of alpha(2)-adrenoceptors (ARs). These receptors are linked to pertussis toxin-sensitive G proteins. Agonist binding leads to inhibition of adenylyl cyclase, inhibition of Ca(2+) channels and activation of K(+) channels. Recently, three distinct subtype...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1490343
更新日期:2003-10-01 00:00:00
abstract:BACKGROUND:A stress reaction involving increased cortisol release, which has not been documented thus far, might affect the assessment of selectivity of catheterization during adrenal venous sampling (AVS). OBJECTIVE:To investigate whether an ACTH-driven cortisol release occurs during AVS and whether it influences the...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-11-0972
更新日期:2012-05-01 00:00:00
abstract::Glucocorticoids (GC) such as cortisol regulate multiple physiological functions, notably those involved in development, metabolism, inflammatory processes and stress, and exert their effects upon binding to the glucocorticoid receptor (GR, encoded by NR3C1 gene in humans). GC signaling follows several consecutive step...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-19-0811
更新日期:2020-02-01 00:00:00
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...
journal_title:European journal of endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1530/EJE-17-0077
更新日期:2017-08-01 00:00:00
abstract::Dogs kept under controlled photoperiodic conditions of 12 h light and 12 h dark expressed a clear diurnal melatonin rhythm in the peripheral blood, with a swift peak restricted to the late part of the scotophase. The highest density of high-affinity, G-protein-linked 2-[125I]iodomelatonin binding sites was found in th...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1310191
更新日期:1994-08-01 00:00:00
abstract:Objective:Fetal exposure to gestational diabetes mellitus (GDM) increases the risk of metabolic diseases in the offspring. Leptin, adiponectin, and fibroblast growth factor 21 (FGF21) may play potential roles in the underlying disease mechanisms. We investigated the impact of fetal exposure to GDM on leptin, adiponecti...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-19-0658
更新日期:2019-12-01 00:00:00