Abstract:
OBJECTIVE:Herpes simplex virus type 1 (HSV-1)-derived vectors are known to be effective tools to deliver transgenes into normal and neoplastic anterior pituitary (AP) cells in vitro. Our objective was to assess the in vitro and in vivo effects of tsK/beta-gal, a temperature-sensitive HSV-1-derived vector harbouring the E. coli beta-galactosidase gene, on AP hormone secretion as well as on transgene expression in rat AP tumours (hyperplastic prolactinomas). DESIGN:The impact of vector infection on prolactin (PRL) and GH release was determined in vitro in normal and hyperplastic (lactotrophic) dispersed AP cells exposed for 24 h to tsK/beta-gal as well as in vivo in ectopic AP grafts. In some oestrogen-induced prolactinoma-carrying rats, vector suspension was stereotaxically injected into the glands to assess transgene expression in vivo. METHODS:GH and PRL release was measured by specific RIAs. In vivo transgene expression was assessed by immunohistochemistry for beta-galactosidase and enzymohistochemistry (5-bromo-4-chloro-3-indolyl-beta-d-galactopyranoside). Ectopic pituitary grafts and stereotaxic surgery were performed following standard procedures. RESULTS:At a multiplicity of infection of 0.5, the vector induced a 30 and 22% fall in PRL and GH release respectively in normal AP cells, whereas the corresponding hormone release inhibition for hyperplastic AP cells was 41 and 33% for PRL and GH respectively. In ectopic pituitary grafts, the effect of vector infection on hormone secretion was assessed by measuring serum PRL levels in the host rats every 5 days for 4 weeks post-grafting. In the pituitary-grafted rats that received the viral vector, serum PRL failed to increase to the levels achieved in control-grafted animals. Finally, pituitary tumours stereotaxically injected with tsK/beta-gal showed widespread expression of the beta-galactosidase transgene around the injection areas. CONCLUSIONS:The results reported here have implications for basic studies using gene transfer to pituitary gland as well as potential gene therapy approaches to pituitary diseases.
journal_name
Eur J Endocrinoljournal_title
European journal of endocrinologyauthors
Bolognani F,Albariño C,Romanowski V,Carri NG,Goya RGdoi
10.1530/eje.0.1450497subject
Has Abstractpub_date
2001-10-01 00:00:00pages
497-503issue
4eissn
0804-4643issn
1479-683Xpii
1450497journal_volume
145pub_type
杂志文章abstract::Previous reports of a correlation between serum dehydroepiandrosterone sulfate (DHEAS) and testosterone in both men and women have led to the suggestion that adrenal and gonadal secretion are related. In the present study, the correlation of DHEAS with testosterone and free testosterone (FT) in both normal men and wom...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1340201
更新日期:1996-02-01 00:00:00
abstract::The recent onslaught of mass spectrometry (MS) to measurements of steroid hormones, including demands that they should be the only acceptable method, has confused clinicians and scientists who have relied for more than 40 years on a variety of immunoassay (IA) methods in steroid hormone measurements. There is little d...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-15-0338
更新日期:2015-08-01 00:00:00
abstract::The relationship between calcitrophic hormones and blood pressure has been investigated in 583 elderly subjects who were untreated for hypertension. Univariate analysis demonstrated that serum parathyroid hormone, calcitriol, albumin and calcium were correlated significantly with mean blood pressure (r = +0.15, +0.10,...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1300446
更新日期:1994-05-01 00:00:00
abstract:OBJECTIVES:The purpose of this population-based prospective cohort study was to examine the effect of hormone therapy (HT) on incidence of diabetes mellitus (DM). DESIGN AND METHODS:Eight thousand four hundred and eighty-three DM-free post-menopausal women aged 52-62 from the population-based Kuopio osteoporosis risk ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0151
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVE:The uncoupling protein 2 (UCP2) uncouples respiration from the oxidative phosphorylation in most cell types, predominantly in white fat and skeletal muscle. Since a decreased basal metabolic rate (BMR) would increase the susceptibility to weight gain, genetic alterations in the UCP2 gene could contribute to t...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1390217
更新日期:1998-08-01 00:00:00
abstract::Exogenous growth hormone (hGH) administration in humans attenuates the endogenous growth hormone (GH) response to some pharmacological stimuli; in particular, pretreatment with hGH completely blocks the serum GH response to growth hormone-releasing hormone. In order to evaluate the mechanism(s) whereby opiods induce G...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1530/eje.0.1340073
更新日期:1996-01-01 00:00:00
abstract:OBJECTIVE:A significant decrease in vitamin D receptor (VDR) and calcium-sensing receptor (CaSR) protein expression has been demonstrated recently in parathyroid (PT) adenomas. In this study, we investigated the relationships between the proliferative activity of parathyroid glands (PTGs) and the expression of VDR as w...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1480403
更新日期:2003-04-01 00:00:00
abstract::A large majority of the currently diagnosed patients with hyperparathyroidism (PHPT) are mild or asymptomatic, mainly women after menopause. Following the debate held at the 16th European Congress of Endocrinology in Wroclaw (Poland) from May 3-7, 2014, arguments are here presented by a surgeon and a medical practitio...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-15-0277
更新日期:2015-09-01 00:00:00
abstract::To evaluate the effects of two regimens of recombinant human GH (rhGH) on growth, bone growth and bone mineralization in GH deficient children, we studied two groups (A and B), each including 16 GH deficient children matched for sex, age, body mass index, height, height velocity and bone age/chronological age ratio (B...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章
doi:10.1530/eje.0.1420042
更新日期:2000-01-01 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::Amiodarone (AMD) is a powerful anti-arrhythmic drug used for the treatment of a wide variety of cardiac arrhythmias and its most striking feature is its high iodine content. Thyroid dysfunction is a limiting side-effect of the drug and both AMD-induced hypothyroidism (AIH) and AMD-induced thyrotoxicosis (AIT) are repo...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1400241
更新日期:1999-03-01 00:00:00
abstract:DESIGN:The aim of this study was to determine the association between aging and adiponectin level from the aspect of the influence of renal function and sex hormones in humans. METHODS:Serum adiponectin and blood urea nitrogen (BUN) levels were measured in 964 subjects (372 males) aged 60.3+/-12.5 years. Testosterone ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.01930
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:Chronic exposure to elevated glucocorticoid (GC) concentrations induces detrimental effects in several tissues. In the skin, GCs provoke intense alterations on various parameters of the physiology of fibroblasts, cumulatively leading to skin atrophy and impaired wound healing. As there are concerns that GCs m...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.01913
更新日期:2005-06-01 00:00:00
abstract:OBJECTIVE:To examine the genes for AMP-activated protein kinase (AMPK) subunits alpha2 (PRKAA2) and gamma3 (PRKAG3) as candidates for polycystic ovary syndrome (PCOS) and its component traits. DESIGN AND METHODS:A total of 287 white PCOS women were recruited from the reproductive endocrinology clinic at the University...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0245
更新日期:2009-09-01 00:00:00
abstract::Ionomycin, which mobilizes Ca2+, and phorbol 12-myristate 13-acetate (PMA), which activates protein kinase C (PKC), were used to compare the effects/interactions of Ca2+ and PKC on luteinizing hormone (LH) secretion from pituitaries of intact male and acutely ovariectomized (72 h) rats. Quartered pituitaries from dono...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1300151
更新日期:1994-02-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to evaluate the effect of intraoperative high-field (1.5 Tesla) magnetic resonance imaging (MRI) on the results of transsphenoidal surgery of GH-secreting pituitary macroadenomas. METHODS:Twenty-three acromegalic patients (mean tumor size, 25 +/- 12 mm; untreated preoperative GH, 4.2...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章
doi:10.1530/eje.1.01970
更新日期:2005-08-01 00:00:00
abstract::Here we describe the case of a 41-year-old woman with a history of Cushing disease who had previously undergone unsuccessful neurosurgery, followed by stereotactic radiosurgery. More than 4 years after this treatment, she presented severe visual impairment, which started in the left eye and was documented by neuro-oph...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.02161
更新日期:2006-06-01 00:00:00
abstract::Glucocorticoids are potent osteopenic agents, producing negative calcium and bone balance via actions at many sites. The most significant adverse effects of glucocorticoid drugs on the skeleton are probably a direct inhibition of matrix synthesis by the osteoblast, reductions in calcium absorption in both the gut and ...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/eje.0.1370209
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVE:Confirmatory testing of suspected primary aldosteronism (PA) requires an extensive medication switch that can be difficult for patients with severe complicated hypertension and/or refractory hypokalemia. For this reason, we investigated the effect of chronic antihypertensive medication on confirmatory testing...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章
doi:10.1530/EJE-11-0914
更新日期:2012-04-01 00:00:00
abstract::We investigated the ontogeny of melatonin synthesis during fetal maturation by measuring the melatonin (MLT) and 6-hydroxymelatonin sulfate (MLTS) excretion in the urine of male infants aged 2-7 days and gestational age 26-42 weeks. We found a negative correlation between advancing gestational age and the MLT and MLTS...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1350184
更新日期:1996-08-01 00:00:00
abstract:Aim:To establish pancreatic alpha-cell mass in lean, non-diabetic humans over the adult lifespan, performed as a follow-up study to beta-cell mass across the adult human lifespan. Methods:We examined human pancreatic autopsy tissue from 66 lean, non-diabetic individuals aged from 30 to 102 years, grouped into deciles:...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-19-0844
更新日期:2020-02-01 00:00:00
abstract::In addition to the classical hormones, the production of numerous polypeptide growth factors, cytokines, vasogenic substances and neuropeptides by pituitary cells has been demonstrated. Expression of the corresponding receptors on pituitary cells enables these factors to influence growth and function of the pituitary ...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/eje.0.1350515
更新日期:1996-11-01 00:00:00
abstract:OBJECTIVE:To evaluate which tests are performed to diagnose hypercortisolism in patients included in the European Registry on Cushing's syndrome (ERCUSYN), and to examine if their use differs from the current guidelines. PATIENTS AND METHODS:We analyzed data on the diagnostic tests performed in 1341 patients with Cush...
journal_title:European journal of endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1530/EJE-16-0967
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVE:Cases of men with estrogen resistance and aromatase deficiency have highlighted the effects of estrogens on bone metabolism, the cardiovascular system and biochemical variables of the metabolic syndrome. In eugonadal men, administration of an aromatase inhibitor induces a substantial elevation of LH and testo...
journal_title:European journal of endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1530/eje.1.02126
更新日期:2006-04-01 00:00:00
abstract:Objective:Retrospective studies suggest that women have more active brown adipose tissue (BAT) than men, but little is known of the effect of fluctuating sex steroids across the menstrual cycle on thermogenesis in women. Design:To characterise the effects of sex and sex steroids on BAT activity we recruited healthy we...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-20-0184
更新日期:2020-09-01 00:00:00
abstract::An increased calcitonin serum level is suggestive of a medullary thyroid cancer (MTC), but is not pathognomonic. The possibility of false positives or other calcitonin-secreting neuroendocrine neoplasms (NENs) should be considered. Serum calcitonin levels are generally assessed by immunoradiometric and chemiluminescen...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-20-0506
更新日期:2020-12-01 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:BACKGROUND:A limited number of mutations in the GH secretagogue receptor gene (GHSR) have been described in patients with short stature. Objective To analyze GHSR in idiopathic short stature (ISS) children including a subgroup of constitutional delay of growth and puberty (CDGP) patients. SUBJECTS AND METHODS:The GHSR...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-11-0168
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND AND AIMS:Ghrelin is an orexigenic 28-amino acid peptide produced by the stomach. Circulating ghrelin levels rise shortly before and fall shortly after every meal. Peptide YY (PYY), an anorexigenic 36-amino acid peptide, is secreted primarily from the intestinal mucosa of the ileum and large intestine. Plasma...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-1033
更新日期:2010-03-01 00:00:00
abstract::We measured serum concentrations of insulin-like growth factors I and II (IGF-I and IGF-II) by radioimmunoassay in 107 healthy women aged 28-78 years and in 116 women with established osteoporosis. The women with established osteoporosis were randomized to a 1-year double-blind, placebo-controlled treatment with conti...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1530/eje.0.1320313
更新日期:1995-03-01 00:00:00