Abstract:
:We present a sensitive time-resolved fluorometric immunofunctional assay (TR-FIA) for direct quantitation of functional growth hormone-binding protein (GHBP), using an immunoassay kit for growth hormone (GH-DELFIA). In addition to the immobilized GH antibody, one monoclonal antibody against GHBP was used. This anti-GHBP was labelled with the chelate of europium. The assay was performed in one step. The detection limit for GHBP was 0.044 nmol L-1 (NBS + 3 SD). The calibration curve was linear in the interval 0.11-8.03 nmol L-1. Average intra-assay coefficient of variation (CV) was 3.44%. Average interassay CV at GHBP concentrations 0.563 nmol L-1 and 1.40 nmol L-1 were 12% and 6.3% respectively. Analytical recovery in serum ranged from 76% to 127% with a mean of 101 +/- 3.6%. Serum GHBP in 102 normal subjects ranged from 0.513 to 3.772 nmol L-1 and was positively related to body mass index (P < 0.001). In growth hormone-deficient sera GHBP was higher than in control subjects (1.751 +/- 0.179 nmol L-1 and 1.257 +/- 0.140 nmol L-1 respectively, P < 0.001). Acromegalic patients had lower levels of GHBP than controls (0.946 +/- 0.251 and 1.234 +/- 0.144 nmol L-1 respectively, P = 0.005). This assay also allowed detection of GH-complexed GHBP in serum. These results were in agreement with theoretical values calculated from the measured GH and the functional GHBP concentrations. Results were compared with data obtained by a recently reported, validated ligand immunofunctional assay (LIFA), which is fundamentally different. There was a significant linear relationship between the results from the two assays (r = 0.89, P = 0.001). The slope of the regression line was 0.65. In conclusion, this new convenient GHBP TR-FIA provides a sensitive and precise method for detecting total GHBP as well as complexed GHBP in human serum, and allows easy processing of large numbers of samples.
journal_name
Eur J Clin Investjournal_title
European journal of clinical investigationauthors
Fisker S,Frystyk J,Skriver L,Vestbo E,Ho KK,Orskov Hdoi
10.1046/j.1365-2362.1996.2010558.xsubject
Has Abstractpub_date
1996-09-01 00:00:00pages
779-85issue
9eissn
0014-2972issn
1365-2362journal_volume
26pub_type
杂志文章abstract::Serum testosterone, LH, and FSH before and after i.v. injection of LHRH were studied in ten acromegalic men and in twenty-one males after hypophysectomy. Controls were normal men matched according to age. Compared to the controls, basal FSH was slightly higher and basal LGH slightly lower in the untreated acromegalics...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1977.tb01587.x
更新日期:1977-04-01 00:00:00
abstract:BACKGROUND:Arterial stiffness is an important determinant of cardiovascular risk. It is associated with several cardiovascular risk factors, including hypertension, diabetes and cigarette smoking. However, there are conflicting data about the relationship between arterial stiffness and hypercholesterolemia. Furthermore...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02260.x
更新日期:2010-03-01 00:00:00
abstract::In controls and in patients suffering from congestive heart failure (CHF) the circulating levels of catecholamines, neuropeptide Y-like immunoreactivity (NPY-LI), vasoactive intestinal peptide-LI (VIP-LI), substance P-LI (SP-LI) and calcitonin generated peptide-LI (CGRP-LI) markers of sympathetic, parasympathetic and ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1990.tb01796.x
更新日期:1990-02-01 00:00:00
abstract::The effects of dazoxiben on finger-blood flow in response to cold challenge were studied in normal subjects and patients with Raynaud's phenomenon. In normal subjects concentrations of TXB2 and 6-oxo-PGF1 alpha were measured in blood taken from dorsal hand veins following cold challenge. In a parallel multicentre stud...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2362.1985.tb00138.x
更新日期:1985-02-01 00:00:00
abstract:BACKGROUND:Humming greatly increases nasal nitric oxide (NO) in healthy people by causing a rapid washout of NO from the sinuses. This increase is abolished in patients with complete sinus ostial obstruction. OBJECTIVE:Allergic rhinitis is a risk factor for development of sinusitis and we wanted to study whether nasal...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2004.01384.x
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND:Diets and Omega-3 polyunsaturated fatty acids have been considered as important factors to reduce the risk of cardiovascular and inflammatory diseases, but there are few details on the effects on healthy subjects. The aim of the present study was to examine the variation of several physiological parameters i...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2362.2005.01540.x
更新日期:2005-08-01 00:00:00
abstract:BACKGROUND:This study was conducted to determine the effects of fish oil administration on gene expression related to insulin, lipid and inflammation in women with polycystic ovary syndrome (PCOS). MATERIALS AND METHODS:This randomized, double-blind, placebo-controlled trial was conducted among 40 subjects with PCOS, ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,随机对照试验
doi:10.1111/eci.12893
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND:Mortality from prostate cancer remains a significant problem with current treatment(s), with an expected 30 350 deaths from prostate cancer in 2005. Long-acting natriuretic peptide, vessel dilator, kaliuretic peptide and atrial natriuretic peptide have significant anticancer effects in breast and pancreatic ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2005.01569.x
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:Mutations in endoglin (ENG) and activin receptor-like kinase 1 (ALK-1 or ACVRL1) genes are the underlying basis of hereditary haemorrhagic telangiectasia (HHT) types 1 and 2, respectively. Both genes belong to the transforming growth factor-beta (TGF-beta) receptors superfamily and are expressed in endotheli...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2007.01824.x
更新日期:2007-07-01 00:00:00
abstract::Flow cytometry was used to study phagocytic function and release of reactive oxygen intermediates (ROI) following phagocytosis by granulocytes in 14 patients (six female, eight male) with gram-negative septicaemia prior to, during, and after therapy compared with a group of healthy controls. Phagocytic capacity was as...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1995.tb01723.x
更新日期:1995-06-01 00:00:00
abstract::A haemolytically inactive alpha-mobile complement C8 component was identified by crossed immunoelectrophoresis in a 27-year-old male with recurrent meningococcal infections and absence of complement mediated serum haemolytic activity. The patient's serum/plasma contained no demonstrable normal C8. C8 inhibitor activit...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1983.tb00084.x
更新日期:1983-04-01 00:00:00
abstract:BACKGROUND:The sympathetic nervous exerts a key role in cardiovascular homeostasis control by regulating cardiac output, systemic vascular resistance, heart rate and blood pressure. MATERIALS AND METHODS:Data collected during the past 30 years have unequivocally shown that in a considerable number of cardiovascular as...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/eci.12553
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND:Acute hyperglycaemia is known to inhibit jejunal interdigestive motility. This study was undertaken to establish the effects of hyperglycaemia on fed jejunal motility and small intestinal transit time, and to establish if the effects of hyperglycaemia are mediated in part by hyperinsulinaemia. METHODS:Nine ...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2362.1998.00240.x
更新日期:1998-01-01 00:00:00
abstract::Microvascular research is seriously hampered by the great temporal and spatial variability of the measured skin blood flow and variation in sympathetic vasomotor reflexes within and between persons. Therefore skin vasomotor reflexes were studied before and after ulnar nerve blockade within the same person, resulting i...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1995.tb01738.x
更新日期:1995-07-01 00:00:00
abstract:BACKGROUND:Following cisplatin-based chemotherapy, survivors of testicular cancer have a high prevalence of cardiovascular risk factors and an increased risk of cardiovascular disease. Cardiac function has not been extensively studied and no comparisons have been made with men from the general population. DESIGN:Left ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2005.01460.x
更新日期:2005-02-01 00:00:00
abstract:BACKGROUND:We recently reported high high-density lipoprotein (HDL) cholesterol as a predictor of recurrent risk in a subgroup of postinfarction patients defined by hypercholesterolemia and high C-reactive protein (CRP) levels. We investigated whether a similar high-risk subgroup might exist for incident cardiovascular...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02287.x
更新日期:2010-06-01 00:00:00
abstract::Changes in blood glucose homeostasis induced by the new somatostatin analogue BIM 23014 (BIM) were studied. Eight normal men (study 1) received either vehicle or 1000, 2000 and 3000 micrograms BIM as a 24 h s.c. infusion. Blood glucose, plasma insulin, C-peptide, glucagon and growth hormone (GH) were measured before t...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2362.1992.tb01448.x
更新日期:1992-12-01 00:00:00
abstract::The collagenolytic activities were assayed in fibroblast cultures established from ten keratoconus and six control corneal explants. The assays included those for both type I and type IV collagenase. The amount of free, directly assayable type I collagenase was highly increased in the media of keratoconus primary cell...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1986.tb01311.x
更新日期:1986-02-01 00:00:00
abstract:BACKGROUND:Glucocorticosteroids are effective in the treatment of allergic rhinitis, a disease characterized by a variety of symptoms, e.g. rhinorrhea and itching. The time course of symptomatic relief for allergic rhinitis by steroids has not been examined in detail to date, although the onset of steroid action is one...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2362.2004.01293.x
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Linear growth restriction is a unique feature of paediatric inflammatory bowel diseases (IBD), and reduced insulin-like growth factor (IGF-1) is a major determinant of short stature. We aimed to assess factors influencing somatic height in children suffering from IBD. MATERIALS AND METHODS:This was a retros...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.12969
更新日期:2018-08-01 00:00:00
abstract::Inheritance is a major determinant of increased sodium-lithium countertransport (SLC) activity in hypertension. However, hyperlipidaemia can also cause increased SLC activity in some individuals and it is difficult to distinguish this effect from the effect of hypertension. Erythrocyte SLC activity and its kinetic det...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1992.tb01435.x
更新日期:1992-11-01 00:00:00
abstract::The in vivo metabolism in the rat of radioiodinated human and rat high-density lipoprotein was compared with a double-label procedure using 125I and 131I. While rat high-density lipoprotein showed a biphasic serum decay, human high-density lipoprotein was characterized by a monoexponential serum decay. No differences ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1985.tb00291.x
更新日期:1985-12-01 00:00:00
abstract:BACKGROUND:Glomerulonephritis clusters in families. However, infections are common inducers of glomerulonephritis and may also cluster in families. Studies of adoptees and their biological and adoptive parents may disentangle genetic from environmental causes of familial clustering. This is the first adoption study aim...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.13148
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Kinetic abnormalities of apolipoprotein B (apoB)-containing lipoproteins in noninsulin-dependent diabetes mellitus (NIDDM) remain poorly understood. To get further insight into these abnormalities we performed a stable isotope kinetic experiment comparing the metabolism of apoB-containing lipoproteins in mod...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:
更新日期:2000-08-01 00:00:00
abstract::Currently available information on adipose tissue metabolism in man is mainly based on studies in vitro. In the present work adipose tissue lipid uptake was studied in vivo in man. 100 g glucose and 120 g milk fat with 10 microCi U-14C oleic acid were given in the overnight fasting state to eight women and 2 h after a...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2362.1990.tb02263.x
更新日期:1990-04-01 00:00:00
abstract:BACKGROUND:Adiponectin is an insulin-sensitizing, antiatherogenic and anti-inflammatory adipocytokine that circulates in three isoforms: a trimer [low-molecular weight (LMW)], a hexamer (trimer-dimer) of medium molecular weight (MMW) and a multimeric high molecular weight (HMW) isoform. Evidence is accumulating that HM...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2008.02028.x
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:The aetiology of inguinal hernia includes changes in collagen turnover and metalloproteinase (MMP) expression, and direct hernia has been linked to increased MMP-2 expression. Since transforming growth factor beta1 (TGFbeta1) plays a role in tissue remodelling, this growth factor could directly affect metall...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2007.01816.x
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND:Several studies have reported a significant gender difference in low-density lipoprotein (LDL) size, with men being characterized by smaller, denser LDL particles than women, and it has been suggested that the contribution of the greater accumulation of visceral adipose tissue in men compared with women may ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2002.01092.x
更新日期:2002-12-01 00:00:00
abstract::Primary biliary cirrhosis (PBC) is a chronic cholestatic liver disease associated with autoimmune disorders. The aetiology is unknown, although it has been suggested that the disease may be related to infectious agents. Previous studies revealed that sera from patients with PBC react against Mycobacterium gordonae. Th...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.1997.1690724.x
更新日期:1997-08-01 00:00:00
abstract:BACKGROUND:Prevalence of fatty liver (FL) and nonalcoholic fatty liver disease (NAFLD) depends mainly on obesity, diabetes and genetic factors. FL and NAFLD prevalence was evaluated in Portuguese adult population and correlated with several risk factors and related mortality data, within the same period. MATERIALS AND...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.13235
更新日期:2020-06-01 00:00:00