Abstract:
:In order to evaluate simultaneously in thyrotoxic subjects the relative contributions of insulin secretion, insulin-sensitivity (SI) and glucose-mediated (SG) glucose disposal to overall glucose tolerance, seven non-obese patients with thyrotoxicosis were studied by the minimal model analysis of the frequently sampled intravenous glucose tolerance test, before and greater than 1 month after being rendered euthyroid, and compared with eight healthy control subjects. Basal glucose, C-peptide and glucagon levels were similar in all groups but, in the toxic and euthyroid states, basal insulin levels were significantly elevated compared to the control group (11.2 +/- 2.0 and 7.9 +/- 1.1 vs 5.1 +/- 0.6 microU/ml, mean +/- SE, P less than 0.02). FFA levels were raised in the thyrotoxic subjects prior to treatment (0.95 +/- 0.11 vs 0.68 +/- 0.08 and 0.54 +/- 0.08 mmol/l, P less than 0.02). Glucose tolerance (Kg) was reduced in the thyrotoxic subjects compared to the euthyroid state (1.16 +/- 0.12 vs 1.44 +/- 0.13 per min, P less than 0.025) and control group (1.44 +/- 1.0 per min, 0.05 less than P less than 0.1). First phase (phi 1) and second phase (phi 2) insulin release were both significantly elevated in the thyrotoxic and euthyroid states compared to the control group (phi 1 7.10 +/- 1.88 and 5.29 +/- 1.03 vs 1.72 +/- 0.17 microU/mg/min X 10(-2), P less than 0.01; phi 2 18.64 +/- 3.14 and 16.74 +/- 4.48 vs 9.23 +/- 0.74 microU/mg/min X 10(-2) respectively, P less than 0.02). SG was similar in all groups but SI was significantly reduced in the thyrotoxic subjects compared to the control group (2.24 +/- 0.62 vs 5.92 +/- 1.50/min/microU/ml X 10(4), P less than 0.02) and rose post-treatment in the euthyroid subjects (4.23 +/- 1.75/min/microU/ml X 10(4)). In the thyrotoxic subjects before and after treatment, log SI correlated negatively with basal FFA levels (r = -0.57, P less than 0.05) and with phi 2 (r = -0.58, P less than 0.05). The fractional clearance rate of insulin was unaltered by the thyrotoxic state. It is concluded that in thyrotoxicosis the impairment of Kg is due to reduced insulin sensitivity in the presence of enhanced insulin secretion, but glucose-mediated glucose disposal is unaltered by the toxic state.
journal_name
Clin Endocrinol (Oxf)journal_title
Clinical endocrinologyauthors
Pestell R,Alford F,Ramos R,Sawyer S,Best J,Ward Gsubject
Has Abstractpub_date
1990-10-01 00:00:00pages
481-93issue
4eissn
0300-0664issn
1365-2265journal_volume
33pub_type
杂志文章abstract:BACKGROUND:Pregnancy and lactation comprise a critical window spanning all seasons during which maternal vitamin D status potentially may influence the long-term health of the newborn. Women typically receive calcium/vitamin D supplementation through antenatal vitamins, but there has been limited serial evaluation of m...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12989
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVE:Scalp hair loss is often encountered in clinical practice in Japan after successful surgery for acromegaly. However, this intriguing issue has not been addressed in the literature. The aim of this study was to examine scalp hair loss after surgery for acromegaly. METHODS:Postoperative scalp hair loss was sur...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12040
更新日期:2013-09-01 00:00:00
abstract::The biological response, as measured in the cytochemical bioassay, to the high circulating levels of immunoreactive parathyroid hormone (iPTH) in patients with pseudohypoparathyroidism type I (PSPI) is affected by the presence of an endogenous inhibitor. This is evidenced by the reduced recovery of the biological acti...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1986.tb03284.x
更新日期:1986-05-01 00:00:00
abstract::Human liver contains components in both cytosol and nucleosol which bind the synthetic testosterone derivative, mibolerone, with a high affinity, moderate capacity and a high specificity for androgens. Gel filtration chromatography shows two binding components, a high molecular weight component (mol wt. 250 000) prese...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1985.tb01108.x
更新日期:1985-11-01 00:00:00
abstract:CONTEXT:Germline mutations in four genes (RET, VHL, SDHB and SDHD) are detected in about 17% of patients with apparently sporadic pheochromocytoma. Thus, genetic screening of all patients with this disease is suggested for a rational diagnostic approach and management. OBJECTIVE:To report the clinical, biochemical and...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12032
更新日期:2013-03-01 00:00:00
abstract::Recent evidence suggests that oxytocin (OXT) and arginine vasopressin (AVP) are involved in the response to stress. We have examined the changes in peripheral plasma OXT during abdominal surgery in eight patients (six males, two female; ages 60-82 years) undergoing hemicolectomy and compared the results with those for...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1988.tb01213.x
更新日期:1988-03-01 00:00:00
abstract:INTRODUCTION:Guidelines do not currently recommend routine systematic hormonal screening for pheochromocytoma (PHEO) in all/normotensive patients with neurofibromatosis type 1 (NF1), in contrast to other PHEO-predisposing genetic syndromes such as Von Hippel-Lindau syndrome and multiple endocrine neoplasia type 2. OBJ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13265
更新日期:2017-03-01 00:00:00
abstract::We have examined the characteristics of circulating immunoreactive human calcitonin (IR-hCT) by studying its different molecular weight (MW) forms under various secretory conditions in a patient with medullary carcinoma of the thyroid. Plasma IR-hCT (318 mg/l basal) increased 9 and 12 times, respectively, after calciu...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1980.tb01032.x
更新日期:1980-08-01 00:00:00
abstract::A recently developed radioimmunoassay for direct measurement of 18-hydroxycortisol (18-OH-F) in plasma and urine has been used to study the physiology of this newly described steroid in normal subjects. Plasma levels of 18-OH-F show a circadian variation similar to that of cortisol and are increased and suppressed by ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1985.tb01118.x
更新日期:1985-11-01 00:00:00
abstract:OBJECTIVE:Primary hyperparathyroidism (PHPT) is an uncommonly diagnosed condition among adolescents and young adults. We review the clinical characteristics of these patients based on our institutional experience. SUBJECTS:Patients aged 12-28 years treated for PHPT at our institution from 1990 to 1996 were evaluated b...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1998.00329.x
更新日期:1998-04-01 00:00:00
abstract:OBJECTIVE:Infusion of GH secretagogues appears to be a novel endocrine approach to reverse the catabolic state of critical illness, through amplification of the endogenously blunted GH secretion associated with a substantial IGF-I rise. Here we report the dynamic characteristics of spontaneous nightly TSH and PRL secre...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2265.1997.3371118.x
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Acromegalic patients have increased prevalence of colonic polyps. Development of hyperplastic polyps was related to suppressor of cytokine signalling (SOCS) 2 haploinsufficiency in animal models of acromegaly. OBJECTIVE AND PATIENTS:To evaluate whether variations in SOCS2 expression in the colonic mucosa of...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2008.03431.x
更新日期:2009-06-01 00:00:00
abstract::A convenient, sensitive radioimmunoassay of free thyroxine in serum dialysates is described. The method utilizes a solid phase separation system (pre-formed double antibody) and a relatively short incubation period (220 min) with a staggered addition of tracer. Blanks were low and consistent. The normal range for non-...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb03153.x
更新日期:1982-01-01 00:00:00
abstract:CONTEXT:The substitution of liothyronine (L-T3) for levothyroxine (L-T4) is commonly employed during thyroid hormone (TH) withdrawal in preparation for diagnostic and therapeutic interventions on thyroid cancer patients. Presently, only limited data are available on the L-T3 for L-T4 therapeutic substitution. Objective...
journal_title:Clinical endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2265.2009.03700.x
更新日期:2010-05-01 00:00:00
abstract:OBJECTIVE:Research on sources of variation in adolescent's gonadal hormone levels is limited. We sought to decompose individual differences in adolescent testosterone, estradiol, and pubertal status, into genetic and environmental components. DESIGN:A sample of male and female adolescent twins from the greater Austin ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13522
更新日期:2018-02-01 00:00:00
abstract::Recombinant human TSH (rhTSH) has revolutionized the care of patients with differentiated thyroid cancer. Since its approval for clinical use in 2001 in Europe (1998 in the USA), rhTSH has greatly enhanced the surveillance of these patients by allowing the avoidance of hypothyroidism for TSH stimulation. Previously, a...
journal_title:Clinical endocrinology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2265.2004.02025.x
更新日期:2004-08-01 00:00:00
abstract::A 47-year-old woman was evaluated for congenital dwarfism, primary amenorrhoea due to hypogonadotrophic hypogonadism, severe hyperlipidaemia with pancreatitis, and overt diabetes mellitus associated with severe insulin resistance requiring 2.5-3 units of insulin per kilogram body weight. Chromosomal analysis with tryp...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1995.tb01921.x
更新日期:1995-08-01 00:00:00
abstract::The effect of clomiphene citrate on the occurrence and timing of the endogenous LH surge in superovulated cycles is unclear. To study further this event, five normally ovulating women were treated with clomiphene citrate 100 mg per day in two different cycles, that is, for 5 days in one cycle (days 2 to 6, CC-5) and f...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1988.tb03700.x
更新日期:1988-11-01 00:00:00
abstract:OBJECTIVE:Data about GnRHa on adult height in girls with central precocious puberty(CPP) have shown variable results, ranging from improvement of growth prognosis to lack of any benefit.This study was designed to delineate the criteria to decide which girls with idiopathic CPP(iCPP) will have a height benefit from GnRH...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14420
更新日期:2021-01-18 00:00:00
abstract::1. A mathematical model has been constructed of human thyroid hormone regulation by the anterior pituitary gland, which takes account of most of the currently available experimental data. 2. Successful simulation of data on the stimulation of thyrotrophin (TSH) secretion by thyrotrophin releasing hormone (TRH) was ach...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1976.tb01976.x
更新日期:1976-09-01 00:00:00
abstract:OBJECTIVE:Postablation whole-body scintigraphy, which is performed 5-7 days after administration of ablation activity of radioactive iodine-131 (131 I) in patients with thyroid cancer, is considered a routine procedure for remnant ablation and a useful tool for disease staging. However, the relationship of pre-ablation...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13158
更新日期:2017-01-01 00:00:00
abstract::Transdermal oestradiol, 100 micrograms/d, was used to treat 11 women suffering from postmenopausal symptoms. After 3 weeks therapy there was a significant rise in the plasma oestradiol into the premenopausal range and a significant fall in plasma FSH level and symptom score. Bone resorption, assessed by urinary excret...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1986.tb03607.x
更新日期:1986-11-01 00:00:00
abstract:OBJECTIVES:Papillary thyroid microcarcinoma (PTMC) has an excellent prognosis with an indolent disease course. However, some PTMCs have an aggressive course with lateral cervical lymph node (LCLN) metastasis or distant metastasis. This study aimed to evaluate the pre-operative features of PTMC associated with LCLN meta...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13322
更新日期:2017-06-01 00:00:00
abstract::Renin-angiotensin-aldosterone system (RAAS) plays a crucial role in maintaining water and electrolytes homoeostasis, and its deregulation contributes to the development of arterial hypertension. Since the historical description of the "classical" RAAS, a dramatic increase in our understanding of the molecular mechanis...
journal_title:Clinical endocrinology
pub_type: 杂志文章,评审
doi:10.1111/cen.13741
更新日期:2018-10-01 00:00:00
abstract::Prolactin secretion and biological activity have been investigated in 20 females with persistent idiopathic galactorrhoea who had normal resting serum prolactin levels at presentation. Results were compared with those in 34 normal controls. Hyperprolactinaemia, which was persistent in one and intermittent in the other...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1985.tb03003.x
更新日期:1985-05-01 00:00:00
abstract:OBJECTIVE:The aim was to study the relationship between growth hormone (GH) and insulin-like growth factor-I (IGF-I) in critically ill patients. DESIGN:Case-control study of critically ill patients admitted to the intensive care unit was carried out. PATIENTS:Six critically ill patients (51-78 years) who required ven...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1991.tb03495.x
更新日期:1991-07-01 00:00:00
abstract:OBJECTIVE:This study was designed in order to evaluate bone turnover with bone formation and resorption markers in hyperthyroidism and its possible relationship with serum cytokines interleukin 6 (IL-6) and tumour necrosis-alpha (TNF-alpha), levels of thyroid hormones and thyroid autoantibodies. DESIGN AND PATIENTS:Tw...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2002.01578.x
更新日期:2002-07-01 00:00:00
abstract:OBJECTIVE:Although the polymorphisms of the cytotoxic T lymphocyte antigen 4 (CTLA4) gene have been shown to be associated with Type 1 diabetes in Caucasians, some conflicting results have been reported among subjects of different ethnic backgrounds. We examined a CTLA4 polymorphism and its relationship to human leucoc...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2001.01397.x
更新日期:2001-11-01 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::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