Abstract:
OBJECTIVE:The aetiology of non-insulin dependent diabetes is unknown, but defective insulin secretion is a feature. The disease also has a strong genetic basis and first-degree relatives of patients have an increased risk of future diabetes. To investigate whether beta-cell dysfunction is an early feature of the disease, we studied insulin secretion in healthy first-degree relatives of patients with non-insulin dependent diabetes. DESIGN:Each subject underwent a 1-hour intravenous glucose tolerance test (0.3 g/kg). PATIENTS:Seventeen first-degree relatives of patients (10 of European and 7 of Asian (Indian subcontinent) origin) with normal glucose tolerance were compared with 17 matched control subjects with no family history of diabetes. MEASUREMENTS:Plasma immunoreactive insulin (IRI) was measured by radioimmunoassay, and specific insulin, intact and 32,33 split proinsulin were measured by specific immunoradiometric assays (IRMA) for the 1st phase (0-10 minutes) and 2nd phase (10-60 minutes) responses. Glucose and intermediary metabolites were measured enzymatically. RESULTS:Fasting concentrations of IRI, IRMA insulin, intact and 32,33 split proinsulin were similar in relatives and controls in each group. Fasting glucose levels were similar in European relatives and controls but lower in Asian relatives compared to their controls (mean +/- SE 4.9 +/- 0.2 vs 5.5 +/- 0.2 mmol/l, P < 0.05). Following intravenous glucose, European relatives had similar IRI and glucose levels to their controls. Secretion of 32,33 split proinsulin was increased in European relatives compared to their controls, significantly so for 2nd phase secretion (1st phase median (range): 71 (7-352) vs 55 (17-118) pmol/l min, NS; 2nd phase: 433 (115-1459) vs 234 (55-745) pmol/l min, P < 0.05). Secretion of IRMA insulin and intact proinsulin were similar in European relatives and controls (IRMA insulin: 1st phase 2757 (700-10,969) vs 2830 (632-4682) pmol/l min; 2nd phase 6387 (3006-15,865) vs 5284 (2060-18,605) pmol/l min; intact proinsulin: 1st phase 31 (13-113) vs 32 (16-72) pmol/l min; 2nd phase: 174 (87-737) vs 159 (97-298) pmol/l min). European relatives had a greater percentage of proinsulin-like molecules (intact + 32,33 split proinsulin) to total insulin (sum of IRMA insulin + intact + 32,33 split proinsulin) during the 2nd phase of secretion (9.1 (5.0-11.8) vs 5.9 (4.3-12.6)%, P < 0.05). In contrast, Asian relatives had similar secretion of IRI, IRMA insulin, intact and 32,33 split proinsulin to their controls. Glucose disappearance (KG) was similar in relatives and controls within each ethnic group (Europeans: relatives 725 +/- 101 vs controls 668 +/- 47/min; Asian: relatives 610 +/- 97 vs controls 783 +/- 936/min). Asian relatives had higher fasting circulating glycerol (65 +/- 7 vs 44 +/- 4 mumol/l, P < 0.05), non-esterified fatty acid (569 +/- 59 vs 375 +/- 64 mumol/l, P < 0.05) and 3-hydroxybutyrate levels (147 (44-187) vs 35 (21-57) mumol/l, P < 0.01) than their controls and this persisted following intravenous glucose. This difference was not observed in the European group. CONCLUSION:First-degree relatives of European patients with NIDDM possess early signs of beta-cell dysfunction, with increased and disproportionate secretion of 32,33 split proinsulin after intravenous glucose, whilst glucose tolerance is still normal.
journal_name
Clin Endocrinol (Oxf)journal_title
Clinical endocrinologyauthors
Gelding SV,Andres C,Niththyananthan R,Gray IP,Mather H,Johnston DGdoi
10.1111/j.1365-2265.1995.tb01873.xsubject
Has Abstractpub_date
1995-03-01 00:00:00pages
255-64issue
3eissn
0300-0664issn
1365-2265journal_volume
42pub_type
杂志文章abstract::Trilostane is a competitive inhibitor of 3 beta-hydroxysteroid dehydrogenase activity in vitro and an orally active inhibitor of steroidogenesis in vivo. A cytochemical section bioassay for this drug (4 alpha, 5-epoxy-17 beta-hydroxy-3-oxo-5 alpha-androstane-2 alpha-carbonitrile) in human plasma has been developed. Th...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1984.tb00131.x
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND:Patients with idiopathic hypoparathyroidism (IH) require variable doses of calcium and 1-α-(OH)D. The reasons for such variability are not clear. As autoimmune mechanisms may play a role in IH, there is a possibility of coexistent coeliac disease with calcium/vitamin D malabsorption. OBJECTIVE:We assessed t...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12850
更新日期:2016-04-01 00:00:00
abstract:OBJECTIVE:The intravenous low-dose ACTH test has been proposed as a sensitive tool to assess adrenal function through circulating steroids. The aims of this study were to: (a) find the minimal intramuscular ACTH dose that induced serum and salivary cortisol and aldosterone responses equivalent to those obtained after a...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2004.02144.x
更新日期:2004-12-01 00:00:00
abstract:OBJECTIVE:Some patients with parathyroid carcinoma present with an over-production of nontruncated amino-terminal (NT-N) parathyroid hormone (PTH), a post-transcriptionally modified form of PTH(1-84). This is usually picked up on an elevated whole (W) PTH (third-generation)/total (T) (second-generation) PTH assay ratio...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2011.04021.x
更新日期:2011-06-01 00:00:00
abstract:BACKGROUND:GH may be beneficial in treating patients with end-stage renal disease (ESRD). However, the efficacy and safety of GH could be compromised by the potential for accumulation in the circulation. OBJECTIVE:The objective was to investigate the pharmacokinetics and safety of GH treatment in ESRD patients. DESIG...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2007.02962.x
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:Traditional methods of bone densitometry may not provide a comprehensive assessment of bone health. We aimed to assess bone micro-architecture and bone marrow adiposity (BMA) by MRI in adults with osteogenesis imperfecta (OI) and endocrinopathy including GH deficiency and/or hypogonadism. MEASUREMENTS:High-r...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12367
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Postsurgical regrowth or recurrence of nonfunctioning pituitary adenomas (NFAs) is not uncommon and often requires further surgery or radiotherapy (DXT). Routine postoperative DXT increases the incidence of hypopituitarism, which is associated with increased morbidity and mortality. Identification of genetic...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2004.02046.x
更新日期:2004-07-01 00:00:00
abstract:PURPOSE:Massive macronodular adrenocortical disease (MMAD) may be caused by aberrant microRNA expression. To determine the microRNA profile in MMAD and identify putative microRNA-gene target pairs involved in adrenal tumourigenesis. EXPERIMENTAL DESIGN:We performed microRNA microarray analysis in 10 patients with ACTH...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2009.03725.x
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVE:Iodine deficiency during pregnancy results in thyroid dysfunction and has been associated with adverse obstetric and foetal effects, leading to worldwide salt iodization programmes. As nowadays 69% of the world's population lives in iodine-sufficient regions, we investigated the effects of variation in iodine...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12321
更新日期:2014-04-01 00:00:00
abstract::A 32-year-old Caucasian male, clinically euthyroid, with paranoid schizophrenia and granulocytopenia, had elevated total and free serum T4 and T3; serum TSH was normal (2.7 +/- 0.7 micronU/ml). There was no goitre present, no evidence of Graves' disease, and no evidence of pituitary tumour. He had a normal response to...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1979.tb02099.x
更新日期:1979-05-01 00:00:00
abstract:BACKGROUND:To define the symptoms, signs and treatment outcomes in a population of older patients with Cushing's disease (CD). METHODS:We analysed the clinical presentation and treatment outcomes in 45 CD patients older than 60 years, in comparison with 90 CD patients younger than 60, and a control group of 45 older p...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13799
更新日期:2018-10-01 00:00:00
abstract::The prolactin (PRL) response to fenfluramine (FEN), a serotonin (5-HT) releasing agent, is used as an index of 5-HT sensitivity in studying disorders associated with central 5-HT abnormality. Plasma oestrogen levels are known to augment PRL responses to a variety of stimuli. In order to examine the effect that ovarian...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1991.tb03768.x
更新日期:1991-04-01 00:00:00
abstract::We report an 8-year follow-up of three sisters born of a consanguineous marriage and who originally presented with short stature and enlarged pituitary fossa. All have shown progressive failure of anterior pituitary hormone function. In addition, the two eldest sisters were eventually found to have an empty sella whil...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1986.tb03255.x
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:Hydrocortisone therapy should be individualized in congenital adrenal hyperplasia (CAH) patients to avoid over and under replacement. We have assessed how differences in absorption and half-life of cortisol influence glucocorticoid exposure. PATIENTS AND METHODS:Forty-eight patients (21 M) aged between 6·1 ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12653
更新日期:2015-04-01 00:00:00
abstract::Seckel syndrome is an autosomal-recessive disorder with a frequency of less than 1/10 000 births in which there are multiple malformations including severe short stature. We report on a patient with Seckel syndrome with a current body height of -7.5 SDS. Laboratory investigations at the age of 19 months revealed high ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2002.01590.x
更新日期:2002-08-01 00:00:00
abstract::Subjects living in iodine deficient areas were reported to have elevated serum thyroglobulin (Tg) concentrations. This finding was interpreted as related to thyroid stimulation. Discrepant results, however, were found when serum Tg concentrations were correlated either with serum TSH or with goitre size. In this study...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1985.tb00205.x
更新日期:1985-08-01 00:00:00
abstract::We have studied the effects of dopamine on the secretion of TSH and its subunits in vivo and in vitro. Four normal controls, seven patients with primary hypothyroidism, two patients with peripheral resistance to thyroid hormone (PRTH), and two patients with alpha-secreting pituitary tumours underwent a 3-h dopamine in...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1983.tb03211.x
更新日期:1983-03-01 00:00:00
abstract:OBJECTIVE:Constitutional delay of growth and puberty (CDGP) is a tempo variant with a good prognosis. Healthy late-maturing adolescents grow slower than postulated by age-related references, and therefore, CDGP is frequently confused with growth hormone deficiency (GHD). For differential diagnosis, height velocity refe...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14358
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVE:A high prevalence of diabetes mellitus has been shown in patients with primary hyperparathyroidism (PHPT). However, it is unclear whether this is related to the metabolic abnormalities in PHPT or to the presence of other risk factors for glucose intolerance in these patients. The aim of our study was to deter...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1994.tb02442.x
更新日期:1994-01-01 00:00:00
abstract:OBJECTIVE:We evaluated pulsatile and circadian TSH secretion in primary hypothyroidism. DESIGN:In a prospective study, blood was sampled every 10 minutes during 24 hours for assay of TSH (IRMA). Thyroid hormones and TSH responsiveness to TRH were then measured. SUBJECTS:Nine patients with overt primary hypothyroidism...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1992.tb01481.x
更新日期:1992-12-01 00:00:00
abstract:OBJECTIVE:The menopausal transition is characterized by increased body fat accumulation, including redistribution from peripheral to central fat depots. This distribution is associated with an increased risk of type 2 diabetes and cardiovascular disease that are linked to low-grade inflammation. We determined whether p...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2011.04322.x
更新日期:2012-11-01 00:00:00
abstract:CONTEXT:Carney complex (CNC) is an autosomal dominant multiple endocrine neoplasia syndrome (OMIM 160980). About 70% of cases are familiar; most have mutations of the PRKAR1A gene on chromosome 17q22-24. There is little phenotype-genotype correlation known to date. OBJECTIVE:To study the genotype-phenotype correlation...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2008.03286.x
更新日期:2008-11-01 00:00:00
abstract::The uterine cross-sectional area (UXA) of women with polycystic (PCO) or multifollicular ovaries (MFO) is significantly larger and smaller, respectively, than those of normal women during the early-mid-follicular phase of the menstrual cycle. In the present study the distribution of oestradiol in plasma from normal wo...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1987.tb00813.x
更新日期:1987-05-01 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:There is compelling evidence that insulin resistance may play a pivotal role in the development of pregnancy complications including pre-eclampsia and intrauterine growth restriction (IUGR). As dysregulation of visfatin and adiponectin is found in insulin resistance, both adipokines might contribute to pregna...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2007.02751.x
更新日期:2007-03-01 00:00:00
abstract::Plasma aldosterone (PA), plasma renin activity (PRA), extracellular fluid volume (EFV) and hepatic blood flow were measured in forty-four patients with sustained essential hypertension and compared with forty-two normotensive controls of same age and sex. All patient had inulin clearances within the normal range and b...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb03150.x
更新日期:1982-01-01 00:00:00
abstract:OBJECTIVE:The insulin tolerance test (ITT) is contraindicated in a proportion of patients with suspected ACTH deficiency. The aim of this study was to investigate the diagnostic accuracy of the glucagon stress test (GST) compared with the overnight metyrapone test (OMT) in patients with contraindications to ITT. DESIG...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12043
更新日期:2013-05-01 00:00:00
abstract::Serum immunoreactive melatonin was measured in thirty-three male subjects with delayed puberty, thirty of whom had simple (idiopathic) delayed puberty (SDP) and three of whom were GH deficient. The results were compared with a control population of twenty-six subjects. Significantly elevated values of serum melatonin ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb01623.x
更新日期:1982-11-01 00:00:00
abstract::Acid glycosaminoglycans were measured in the tissues of a virtually untreated 83-year-old woman with myxoedema. Intercellular oedema was demonstrated histologically in the tongue, myocardium, striated muscles, and in the skin. Tissue oedema was absent in two female control patients. All tissues from the patient with m...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb03166.x
更新日期:1982-02-01 00:00:00
abstract::A wide variety of adverse effects of methimazole (MMI) have been reported. Here we report a new MMI-induced disorder, acute pancreatitis and parotitis. Three weeks after a woman started MMI treatment for Graves' disease, she developed a high fever, painful parotid swelling and dull pain in the upper abdomen with eleva...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1999.00888.x
更新日期:1999-11-01 00:00:00