Abstract:
OBJECTIVE:The prevalence of clinically silent corticotroph macroadenomas is unknown. Our aim was to determine the prevalence of clinically silent corticotroph macroadenomas among all pituitary macroadenomas. DESIGN:Patients scheduled to have transsphenoidal surgery for any sellar mass were prospectively evaluated clinically and biochemically. PATIENTS:Adults who were scheduled for transsphenoidal surgery for a sellar mass at a single academic medical centre. MEASUREMENTS:Patients were assessed clinically prior to surgery and graded as having typical, mild or no Cushingoid features. They were assessed biochemically by plasma ACTH and 24-h urine free cortisol (UFC). Excised tissue was examined histologically, and pituitary macroadenomas, examined by immunohistochemistry. Patients with corticotroph macroadenomas were classified as clinically silent if they exhibited no Cushingoid features but had elevated plasma ACTH and/or 24-h UFC. They were classified as totally silent if they exhibited neither Cushingoid features nor elevated plasma ACTH or 24-h UFC. RESULTS:Of 124 patients who had pathologically confirmed pituitary macroadenomas, 20 (16%) had corticotroph macroadenomas. Eight (40%) of these were clinically silent, in that they had no Cushingoid features but could be identified biochemically by elevated plasma ACTH (seven) and/or 24-h UFC (three). Five (25%) were totally silent. CONCLUSIONS:A substantial minority (16%) of pituitary macroadenomas treated surgically are corticotroph adenomas. Of these, 40% are clinically silent but can be recognized by elevated plasma ACTH and/or 24-h UFC. Recognizing these adenomas may influence the surgical approach and provide a marker by which to follow the response to treatment.
journal_name
Clin Endocrinol (Oxf)journal_title
Clinical endocrinologyauthors
Guttenberg KB,Mayson SE,Sawan C,Kharlip J,Lee JY,Martinez-Lage M,Loevner LA,Ewanichak J,Grady MS,Snyder PJdoi
10.1111/cen.13146subject
Has Abstractpub_date
2016-12-01 00:00:00pages
874-880issue
6eissn
0300-0664issn
1365-2265journal_volume
85pub_type
杂志文章abstract:OBJECTIVE:The human DIMINUTO/DWARF1 homolog seladin-1/DHCR24 has been recently reported to be up-regulated in adrenocortical adenomas. Seladin-1 expression has been reported in the normal ovary. Granulosa cell tumours of the ovary (GCT) as with adrenocortical adenomas arise from a steroidogenic tissue, respond to pitui...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2005.02308.x
更新日期:2005-07-01 00:00:00
abstract:BACKGROUND:Peroxisomal proliferator-activated receptors (PPAR)- gamma are expressed abundantly in ACTH-secreting pituitary tumours. The PPAR-gamma activator rosiglitazone has been shown to suppress ACTH secretion in human adrenocorticotroph tumour cells in vitro, and prevent and reduce adrenocorticotroph tumour develop...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2006.02501.x
更新日期:2006-05-01 00:00:00
abstract:CONTEXT:Peroxisome proliferator-activated receptor gamma (PPAR-gamma) agonists such as thiazolidinediones (TZDs) improve insulin sensitivity in type 2 diabetes mellitus (T2DM) through effects on fat metabolism whereas GH stimulates lipolysis and induces insulin resistance. OBJECTIVE:To evaluate the impact of TZDs on f...
journal_title:Clinical endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2265.2008.03231.x
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:Macroadenomas represent 50% of pituitary tumours and are often (30%) nonfunctioning. Their immunophenotype suggests differentiation toward a specific pituitary cell line. A substantial proportion of tumours with particularly aggressive behaviour are so called 'silent subtype 3 adenoma'. Its diagnosis require...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2008.03514.x
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVE:We wished to investigate the effects of nicotinamide and 3-aminobenzamide, well known as inhibitors of poly(ADP ribose) synthetase, on interferon-gamma-induced HLA-DR antigen expression using cultured human thyroid cells from patients with Graves' disease. DESIGN AND MEASUREMENTS:Cultured thyroid cells were ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1992.tb02907.x
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Clinically significant Graves' orbitopathy (GO) develops in about 25% of those with Graves' disease (GD); most cases of GD in the UK are managed by endocrinologists. Despite this, patients report significant delays before a diagnosis of GO is made. Measures to increase awareness of the early signs of GO and ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13438
更新日期:2017-12-01 00:00:00
abstract:OBJECTIVE:We examined the individual pharmacological effects of the addition of rosiglitazone and metformin to glimepiride on inflammatory markers and adipokines in patients with type 2 diabetes mellitus. We analysed the relationships between these variables, the measurements of insulin sensitivity and beta-cell functi...
journal_title:Clinical endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2265.2006.02723.x
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:Traditionally, acromegaly evaded diagnosis until in its clinically obvious later stages when treatment is more difficult. Over the last 25 years diagnostic tests have improved, but whether clinical disease detection also improved was unknown, so we tested if disease severity at diagnosis had changed from 198...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2009.03626.x
更新日期:2010-02-01 00:00:00
abstract::Lactation has been associated with suppression of some components of the neuroendocrine stress response. In humans, suppression of the hypothalamo-pituitary-adrenal (HPA) axis has been demonstrated in response to both a psychological and an exercise challenge, but appears to be limited to a short period of time follow...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2004.02133.x
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVE:The effects of thiazide medication in patients with primary hyperparathyroidism (PHPT) have so far not been elucidated. The aim of this study was to analyse the extent to which the administration of thiazides may influence biochemical parameters and therefore the diagnosis of PHPT in a large cohort of patient...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13046
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:The prognostic value of the telomerase reverse transcriptase (TERT) promoter mutation, resulting in poor clinical outcomes of papillary thyroid carcinoma (PTC), has been generally confirmed. To data, there is no high-level evidence approving the association of TERT promoter mutation and aggressive clinical b...
journal_title:Clinical endocrinology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/cen.13017
更新日期:2016-08-01 00:00:00
abstract:CONTEXT:Animal data and cross-sectional human studies have established that chronic hyponatraemia predisposes to osteoporosis; the effects of acute hyponatraemia on bone turnover have not been determined. Our objective was to test the hypothesis that acute hyponatraemia leads to dynamic effects on bone turnover. DESIG...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14367
更新日期:2020-11-11 00:00:00
abstract::We have recently reported an impaired growth hormone (GH) response to a single i.v. bolus dose of growth hormone releasing factor (1 microgram/kg body weight) in obese women. We have now investigated whether the i.v. administration of low dose GHRF(1-29)NH2 (0.33 microgram/kg/h) by 15 min pulsed injections for 3 h fol...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1986.tb00758.x
更新日期:1986-02-01 00:00:00
abstract:OBJECTIVE:Insulin and glucocorticoids are known to increase total leptin levels. However, the effects of insulin and glucocorticoids on the components of the leptin system - free leptin (FL), bound leptin (BL) and soluble leptin receptor (SR) - have not been elucidated. The aim of this study was to determine if there i...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2265.2001.01243.x
更新日期:2001-04-01 00:00:00
abstract:OBJECTIVE:Vasopressin (AVP) is reported to be an important factor for regulating cortisol secretion in patients with Cushing's syndrome due to ACTH-independent macronodular adrenocortical hyperplasia (AIMAH). Recently, there have been several case reports of subclinical Cushing's syndrome due to AIMAH, in which the pat...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2003.01963.x
更新日期:2004-02-01 00:00:00
abstract:OBJECTIVE:Controversial data on ghrelin concentration during exercise in human subjects have been published. We tested the hypothesis that exercise could affect acylated ghrelin (AG) and unacylated ghrelin (UAG), which could partly explain the previously reported inconsistent findings on the association of exercise wit...
journal_title:Clinical endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2265.2007.03058.x
更新日期:2008-03-01 00:00:00
abstract::The initial presentation of macroprolactinoma with visual field impairment, especially in males, is well recognized. Successful treatment with dopamine agonist therapy is characterized by a reduction in hyperprolactinaemia and often rapid and progressive resolution of the visual impairment. A small proportion of patie...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2000.01039.x
更新日期:2000-10-01 00:00:00
abstract:BACKGROUND:Thyroid cancer incidence has been increasing worldwide. Some suggest greater ascertainment of indolent tumours is the only driver, but others suggest there has been a true increase. Increases in Australia appear to have been among the largest in the world, so we investigated incidence trends in the Australia...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12724
更新日期:2016-02-01 00:00:00
abstract::We describe a 40-year-old male with acromegaly, multiple and recurrent cutaneous myxomas, spotty cutaneous pigmentation, a mammary myxoma, a large-cell calcifying Sertoli cell tumour of the testis, and an unusual calcifying pigmented neuroectodermal tumour. He presented a combination of clinical and histological featu...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1986.tb03605.x
更新日期:1986-11-01 00:00:00
abstract:OBJECTIVE:Glucagon-like peptide-1 is an insulin secretion-stimulating gut hormone that is produced in response to food intake. Orlistat (Xenical, F. Hoffman-La Roche, Basel, Switzerland), which decreases fat absorption and increases intestinal fat content, may therefore affect the secretion of glucagon-like peptide-1. ...
journal_title:Clinical endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2265.2007.02888.x
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:In patients with acromegaly serum IGF-I is increasingly used as a marker of disease activity. As a result, the relationship between serum GH and IGF-I is of profound interest. Healthy females secrete three times more GH than males but have broadly similar serum IGF-I levels, and women with GH deficiency requ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2002.01560.x
更新日期:2002-07-01 00:00:00
abstract:OBJECTIVE:A recent report showing disappointingly low sensitivity and specificity for the oral high dose dexamethasone test in the differential diagnosis of Cushing's syndrome prompted us to re-evaluate the results obtained in our centre using the continuous 7-hour intravenous dexamethasone suppression test for this pu...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1999.00759.x
更新日期:1999-08-01 00:00:00
abstract:OBJECTIVES:Graves' disease (GD) complicates 0.1% to 0.2% of pregnancies, but congenital thyrotoxicosis is rare occurring in one in 70 of these pregnancies independent of maternal disease status. Antenatal prediction of affected infants is imprecise; however, maternal history, coupled with a high maternal serum TSH rece...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2001.01173.x
更新日期:2001-03-01 00:00:00
abstract:OBJECTIVE AND DESIGN:Hypopituitarism, in particular GH deficiency, is prevalent in patients with clinically nonfunctioning pituitary adenomas (NFPAs) both before and after surgery. The factors regulating the growth of pituitary adenomas in general and residual tumour tissue in particular are not fully characterized, an...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2004.02022.x
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVES:We have demonstrated previously that obesity in men was significantly associated with low plasma testosterone levels and higher concentrations of the androgen metabolite androstane-3 alpha, 17 beta-diol glucuronide, suggesting that androgen metabolism and elimination is increased in this condition. The objec...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1999.00709.x
更新日期:1999-05-01 00:00:00
abstract:OBJECTIVE:Observational studies have suggested positive associations between serum 25-hydroxyvitamin D (25(OH)D) levels and muscular strength, balance and quality of life. Our aim was to examine whether high-dose vitamin D supplementation would improve these measures as compared to standard-dose vitamin D, as well as t...
journal_title:Clinical endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1111/cen.13353
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:There are currently no sensitive and specific assays for activin B that could be utilized to study human biological fluids. The aim of this project was to develop and validate a 'total' activin B ELISA for use with human biological fluids and establish concentrations of activin B in the circula...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2009.03567.x
更新日期:2009-12-01 00:00:00
abstract::Familial neurohypophysial diabetes insipidus (FNDI) is a rare autosomal dominant syndrome stemming from the absence of arginine vasopressin (AVP). More than thirty-five different germline mutations in the arginine vasopressin-neurophysin II gene have been reported. These mutations are either in the signal peptide or s...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2003.01667.x
更新日期:2003-01-01 00:00:00
abstract:CONTEXT:In contrast to the cardiac hormones, atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP), variations in plasma concentrations of C-type natriuretic peptide (CNP) in healthy adults are ill-defined, limiting their clinical application. OBJECTIVE:Our objective was to define the effect of age, ph...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12035
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:Disordered water balance causes substantial morbidity in a subset of schizophrenics and is the consequence of unexplained defects in the regulation of fluid intake and antidiuretic function. We aimed to determine whether oropharyngeal regulation of water balance is altered in these patients. DESIGN:A 2-hour ...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2265.1996.641463.x
更新日期:1996-01-01 00:00:00