The entero-insular axis in polycystic ovarian syndrome.

Abstract:

:We investigated the contributions made by the entero-insular axis, proinsulin and the fractional hepatic extraction of insulin to the hyperinsulinaemia characteristic of polycystic ovarian syndrome (PCOS). We measured plasma glucose, gastric inhibitory polypeptide (GIP), glucagon-like peptide-1 (7-36 amide) (GLP-1(7-36) amide), immunoreactive insulin (IRI), intact proinsulin (IPI), and C-peptide concentrations during a 75 g oral glucose tolerance test in seven normal weight women with PCOS and eight healthy women. Women with PCOS had higher fasting (P = 0.05) and integrated (P < 0.01) IRI concentrations than controls. Fasting C-peptide levels were similar in both groups but integrated C-peptide (P < 0.05) concentrations were greater in PCOS subjects than controls. Fasting and integrated concentrations of glucose, GIP and GLP-1(7-36) amide were similar in subjects with PCOS and controls. Although fasting IPI concentrations were similar in both groups, integrated IPI concentrations were higher (P = 0.05) in patients with PCOS. Women with PCOS had similar fasting but higher (P < 0.05) integrated IRI:C-peptide molar ratios than controls. Fasting and integrated IPI:IRI molar ratios were similar in both groups. These results confirm that lean women with PCOS have peripheral hyperinsulinaemia. The mild fasting hyperinsulinaemia is due to increased pancreatic secretion, whereas the stimulated hyperinsulinaemia is due to both pancreatic hypersecretion and reduced fractional hepatic extraction of insulin. Hyperproinsulinaemia is modest and appropriate in PCOS, GIP and GLP-1(7-36) amide do not contribute to the stimulated hyperinsulinaemia in PCOS.

journal_name

Ann Clin Biochem

authors

Gama R,Norris F,Wright J,Morgan L,Hampton S,Watkins S,Marks V

doi

10.1177/000456329603300303

subject

Has Abstract

pub_date

1996-05-01 00:00:00

pages

190-5

eissn

0004-5632

issn

1758-1001

journal_volume

33 ( Pt 3)

pub_type

杂志文章
  • Red blood cell distribution width and neutrophil to lymphocyte ratio are associated with outcomes of adult subarachnoid haemorrhage patients admitted to intensive care unit.

    abstract::Background Red blood cell distribution width (RDW) and neutrophil to lymphocyte ratio (NLR) have been reported to be associated with outcomes of acute cerebral infarction. However, their prognostic value in patients with subarachnoid haemorrhage (SAH) remains largely unknown. The aim of this study was to investigate t...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/0004563216686623

    authors: Huang YL,Han ZJ,Hu ZD

    更新日期:2017-11-01 00:00:00

  • Prognostic evaluation of serum long non-coding RNA H19 for endoscopic keyhole surgery or craniotomy in glioma.

    abstract:BACKGROUND:Our study aims to explore the effect of serum long non-coding RNA (lncRNA) H19 level on the long-term prognosis of endoscopic keyhole surgery or craniotomy for glioma. METHODS:A total of 264 glioma patients were selected. Patients were randomly divided into the Craniotomy-high H19 group, the Craniotomy-low ...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/0004563220941888

    authors: Shen L,Xu M,Wang Z,Yu Z

    更新日期:2020-09-01 00:00:00

  • The reproducibility and usefulness of the oral glucose tolerance test in screening for diabetes and other cardiovascular risk factors.

    abstract::We examined the reproducibility of oral glucose tolerance tests (OGTT) using the World Health Organization criterion in 212 Chinese subjects (male 149, female 63) who underwent two 75 g OGTTs within a 6-week period. The overall reproducibility was 65.6% (139/212) of which 74 subjects had normal glucose tolerance, 24 h...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456329803500107

    authors: Ko GT,Chan JC,Woo J,Lau E,Yeung VT,Chow CC,Cockram CS

    更新日期:1998-01-01 00:00:00

  • High-density lipoprotein, lipid, and carbohydrate metabolism during increasing fitness.

    abstract::Eleven unfit bank executives in sedentary employment exercised daily for 10 weeks according to the Canadian Air-Force 5BX Exercise Programme. Over this period no changes were observed in the glucose or insulin responses to a standard breakfast or to intravenous glucose, or in the glucose response to intravenous insuli...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456327901600115

    authors: Moore RA,Penfold WA,Simpson RD,Simpson RW,Mann JI,Turner RC

    更新日期:1979-03-01 00:00:00

  • Evaluation of red blood cell size distribution histograms: the fraction of microcytes.

    abstract::A method is described for the assessment of the fraction of microcytes from the red blood cell (RBC) size distribution histogram. For quantification of the fraction of microcytes an upper threshold corresponding with a RBC volume of 70 fL is established. The reference interval for the fraction of microcytes covers a r...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456328802500615

    authors: Bartels PC,Helleman PW,Soons JB

    更新日期:1988-11-01 00:00:00

  • The development of an artificial stool usable for the surveillance of faecal haemoglobin testing.

    abstract::Background Faecal occult blood testing is an important diagnostic tool for the detection of colorectal cancer. However, it has not been standardized due to the absence of suitable specimens for surveillance. Methods We developed a ready-to-use artificial stool made from rice flour. This new artificial stool homogeneou...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/0004563217732587

    authors: Miike A,Ogawa Z,Sakurabayashi I

    更新日期:2018-05-01 00:00:00

  • Validity of estimating non-sex hormone-binding globulin bound testosterone and oestradiol from total hormone measurements in boys and girls.

    abstract:BACKGROUND:Circulating levels of bioavailable oestradiol and testosterone are often desirable for clinical practice or investigational studies of children. However, assays to measure circulating hormone levels might not always be accessible. We sought to validate the empirical calculation of circulating bioavailable te...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章,随机对照试验

    doi:10.1258/acb.2010.009112

    authors: Egleston BL,Chandler DW,Dorgan JF

    更新日期:2010-05-01 00:00:00

  • A modified method for the estimation of galactose-1-phosphate.

    abstract::The measurement of galactose-1-phosphate has been advocated for monitoring galactosaemia. A radioenzymatic method is described in which red-cell haemolysates are incubated with radiolabelled uridine diphospho-glucose and exogenous galactose-1-phosphate uridyl transferase. Labelled glucose-1-phosphate is formed in prop...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456328602300313

    authors: Dobbie JA,Holton JB

    更新日期:1986-05-01 00:00:00

  • Radioimmunoassays of arginine vasopressin and atrial natriuretic peptide: application of a common protocol for plasma extraction using Sep-Pak C18 cartridges.

    abstract::A rapid vacuum-driven procedure, using pre-treated Sep-Pak C18 cartridges, has been developed for the simultaneous extraction of arginine vasopressin (AVP) and atrial natriuretic peptide (ANP) from plasma. Non-specific interference was removed by fractional elution with an aqueous methanol/trifluoroacetic acid (TFA) m...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456329202900606

    authors: Penney MD,Hampton D,Oleesky DA,Livingstone C,Mulkerrin E

    更新日期:1992-11-01 00:00:00

  • Screening of bacteria in urine using luciferin-luciferase assay of microbial ATP: a comparative study.

    abstract::A total of 3227 urine specimens were analysed to investigate the applicability of a firefly luciferase assay of microbial adenosine triphosphate (ATP) for the rapid screening of bacteriuria in clinical specimens. Urine sediment, dipslide culture, and three plate cultures were also investigated in the majority of the u...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456328201900605

    authors: Ruokonen A,Koskinen M,Leinonen M,Tiilikainen A,Vihko R

    更新日期:1982-11-01 00:00:00

  • Comparison of simple acid-ethanol precipitation with gel exclusion chromatography for measuring leptin binding in serum of normal subjects and cancer patients.

    abstract:BACKGROUND:In humans, leptin circulates in a free form and is also bound to macromolecules. The aim of the present study was to compare a rapid acid-ethanol precipitation (AEP) method of measuring bound leptin with the more laborious gel exclusion chromatography (GEC) reference procedure. Serum samples collected from h...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1258/000456303763046157

    authors: Jamieson NB,McMillan DC,Brown DJ,Wallace AM

    更新日期:2003-03-01 00:00:00

  • Evaluation of the diagnostic value of serum bile acid in the detection and functional assessment of liver diseases.

    abstract::The diagnostic usefulness of fasting total serum bile acids (SBA/F) in the detection of liver diseases and assessment of different aspects of hepatic function alteration was evaluated in 61 healthy subjects and 186 patients with liver disease. The value of SBA/F was compared with other routine tests. In 49 healthy sub...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456328502200608

    authors: Cravetto C,Molino G,Biondi AM,Cavanna A,Avagnina P,Frediani S

    更新日期:1985-11-01 00:00:00

  • Effects of bilirubin and its photoisomers on direct bilirubin measurement using bilirubin oxidase.

    abstract::We examined the reactivity of human serum albumin-bound bilirubin and its photoisomers as substrates for a direct bilirubin assay using bilirubin oxidase. The reduction of (EZ)-cyclobilirubin reached 100% 5 min after addition of the enzyme at any pH tested (3.5-7.4) in 0.1 mol/L phosphate buffer, whereas the reduction...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456320003700404

    authors: Itoh S,Kusaka T,Imai T,Isobe K,Onishi S

    更新日期:2000-07-01 00:00:00

  • Hyperamylasaemia and dual paraneoplastic syndromes in small cell lung cancer.

    abstract::We hereby describe the rare case of a 59-year-old patient presenting with marked hyperamylasaemia mimicking acute pancreatitis upon admission. Investigation of co-existent hypokalemia revealed the presence of ectopic adrenocorticotropic hormone secretion, leading to the final diagnosis of small cell lung cancer, exhib...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/0004563213500658

    authors: Akinosoglou K,Siagris D,Geropoulou E,Kosmopoulou O,Velissaris D,Kyriazopoulou V,Gogos C

    更新日期:2014-01-01 00:00:00

  • The metabolic investigation of sudden infant death.

    abstract::Inherited metabolic disorders account for a small but significant number of sudden unexplained deaths in neonates, infants and occasionally older children. In particular, inherited disorders of fatty acid oxidation may closely mimic sudden infant death syndrome. Post-mortem investigations offer the final opportunity t...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章,评审

    doi:10.1258/0004563041201473

    authors: Olpin SE

    更新日期:2004-07-01 00:00:00

  • Effect of storage of plasma and serum on enzymatic determination of non-esterified fatty acids.

    abstract::Many contradictory results have been published on the stability of total non-esterified fatty acids in blood, plasma and serum under different storage conditions. The present study was undertaken to investigate the stability of non-esterified fatty acids, measured with an enzymatic method, in samples of EDTA-treated p...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1258/0004563011900470

    authors: Menéndez LG,Fernández AL,Enguix A,Ciriza C,Amador J

    更新日期:2001-05-01 00:00:00

  • Differential extraction of endogenous and exogenous 25-OH-vitamin D from serum makes the accurate quantification in liquid chromatography-tandem mass spectrometry assays challenging.

    abstract:BACKGROUND:Extraction followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis is the method of choice when it comes to the accurate quantification of 25-OH-vitamin D in blood samples. It is generally assumed that the addition of exogenous internal standard allows for the determination of the endo...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/0004563214533316

    authors: Lankes U,Elder PA,Lewis JG,George P

    更新日期:2015-01-01 00:00:00

  • External quality assessment of serum alpha-fetoprotein assays.

    abstract::Adequate control of performance in immunoassays of maternal serum alpha-fetoprotein is an essential part of screening for neural tube defects. Information derived from external quality assessment schemes may be of limited value in monitoring individual laboratory performance and stresses the need for proper internal q...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456328001700611

    authors: Woodhead JS,Kemp HA,Nix AB,Rowlands RJ

    更新日期:1980-11-01 00:00:00

  • Genetics of hyperhomocysteinaemia in cardiovascular disease.

    abstract::Homocysteine, a sulphur amino acid, is a branch-point intermediate of methionine metabolism. It can be degraded in the transsulphuration pathway to cystathionine, or remethylated to methionine via the remethylation pathway. In both pathways, major genetic defects that cause enzyme deficiencies are associated with very...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章,评审

    doi:10.1258/000456303321016169

    authors: Lievers KJ,Kluijtmans LA,Blom HJ

    更新日期:2003-01-01 00:00:00

  • Removal of protein-bound and unbound unconjugated bilirubin by perfusion of plasma through an anion-exchange resin in a case of Crigler-Najjar syndrome type I.

    abstract:BACKGROUND:Patients with Crigler-Najjar syndrome, type I (CNS-I) have an inherited absence of hepatocellular bilirubin uridine diphosphate-glucuronosyltransferase activity, which results in severe unconjugated hyperbilirubinaemia, often causing kernicterus and death in infancy or childhood. METHODS:Our patient is a 19...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1258/000456303322326443

    authors: Ihara H,Shino Y,Hashizume N,Shimizu N,Aoki T,Yoshida M

    更新日期:2003-09-01 00:00:00

  • Measurement of bone-specific alkaline phosphatase by an immunoselective enzyme assay method.

    abstract::We evaluated a new immunoselective enzyme assay of bone-specific alkaline phosphatase (ALP). The monoclonal antibody used in this assay was raised against purified bone-specific ALP obtained from SAOS-2 human osteosarcoma cell line. Calibration was based on the enzyme's own activity. The relative activity of the antib...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456329603300205

    authors: Hata K,Tokuhiro H,Nakatsuka K,Miki T,Nishizawa Y,Morii H,Miura M

    更新日期:1996-03-01 00:00:00

  • EXPRESS: Calculated globulin as a screening tool for hypogammaglobulinaemia or paraproteins in hospitalised patients.

    abstract:BACKGROUND:Calculated globulin fraction is derived from the liver function tests by subtracting albumin from the total protein. Since immunoglobulins comprise the largest component of the serum globulin concentration, increased or decreased calculated globulins and may identify patients with hypogammaglobulinaemia or h...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/0004563221989737

    authors: Hoo T,Lim E,John M,D'Orsogna L,McLean-Tooke A

    更新日期:2021-01-11 00:00:00

  • Interpreting indicators of iron status during an acute phase response--lessons from malaria and human immunodeficiency virus.

    abstract::Iron status is influenced by inflammation when the normal control of iron metabolism is reorganized by the primary mediators of the acute phase response, tumour necrosis factor-alpha and interleukin-1. The objective of this review is to show how indices of iron status, particularly haemoglobin, serum ferritin and solu...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章,评审

    doi:10.1258/acb.2007.007167

    authors: Northrop-Clewes CA

    更新日期:2008-01-01 00:00:00

  • Impact of blood collection method on first-trimester dried blood free Beta hCG and PAPP-A.

    abstract::Background Analysis of dried blood specimens has been an integral part of laboratory medicine dating back to the early 1960s when they were introduced as part of neonatal screening programs. More recently, they have been used in Down syndrome screening programmes. Dried blood spot specimens can be collected either by ...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/0004563213484906

    authors: Krantz DA,Carmichael JB

    更新日期:2013-11-01 00:00:00

  • Assessment of oxygenation in the critically ill.

    abstract::This paper reviews the physiology and pathology of oxygen transport from the atmosphere to the cells in critically ill patients. A thorough understanding of this allows a rational approach to monitoring and managing an hypoxic patient in the intensive care setting. ...

    journal_title:Annals of clinical biochemistry

    pub_type: 指南,杂志文章,评审

    doi:10.1177/000456329102800104

    authors: Clapham MC

    更新日期:1991-01-01 00:00:00

  • Effect of plantain on therapeutic drug monitoring of digoxin and thirteen other common drugs.

    abstract:INTRODUCTION:Plantain, a herbal remedy, has been reported to interfere with therapeutic drug monitoring of digoxin. We evaluated three commercially available plantain products for potential interference with therapeutic drug monitoring of digoxin and 13 other common drugs. METHOD:Dry content of plantain capsule or pla...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1258/000456306776865214

    authors: Dasgupta A,Davis B,Wells A

    更新日期:2006-05-01 00:00:00

  • Postprandial effect of a high fat meal on plasma lipid, lipoprotein cholesterol and apolipoprotein measurements.

    abstract::We investigated the effect of a fatty meal on plasma concentrations of lipids, apolipoproteins, and the cholesterol component of lipoproteins. Sixteen nonobese, healthy, asymptomatic males, 22-34 years of age, served as subjects for this study. None smoked, consumed more than two alcoholic drinks per day, or took any ...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456329002700512

    authors: Rifai N,Merrill JR,Holly RG

    更新日期:1990-09-01 00:00:00

  • A new method of measuring the antioxidant activity of polyphenols using cumene hydroperoxide.

    abstract:BACKGROUND:It is well known that polyphenols lower the risk of chronic diseases such as heart disease and cancer. We describe a new method using cumene hydroperoxide (CHP) to determine the antioxidant activity of polyphenols. CHP is considered to be a model reactive lipid peroxidation product. METHODS:The method was b...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1258/000456304322664744

    authors: Sugita O,Ishizawa N,Matsuto T,Okada M,Kayahara N

    更新日期:2004-01-01 00:00:00

  • Why the assay of serum cystine by protein precipitation and chromatography should be abandoned.

    abstract::The higher bias of serum cystine estimations by a HPLC method compared with those by ion exchange techniques is shown to be largely due to differences in the sample preparation procedures of the two techniques. The ion exchange methods utilised sulphosalicylic acid serum protein precipitation and post-column ninhydrin...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1177/000456328802500516

    authors: Cooper JD,Turnell DC,Green B,Wright DJ,Coombes EJ

    更新日期:1988-09-01 00:00:00

  • Association of angiopoietin-like protein 3 with hepatic triglyceride lipase and lipoprotein lipase activities in human plasma.

    abstract:BACKGROUND:The relationship between plasma angiopoietin-like protein 3 (ANGPTL3), and lipoprotein lipase (LPL) activity and hepatic triglyceride lipase (HTGL) activity has not been investigated in the metabolism of remnant lipoproteins (RLPs) and high-density lipoprotein (HDL) in human plasma. METHODS:ANGPTL3, LPL act...

    journal_title:Annals of clinical biochemistry

    pub_type: 杂志文章

    doi:10.1258/acb.2010.009307

    authors: Nakajima K,Kobayashi J,Mabuchi H,Nakano T,Tokita Y,Nagamine T,Imamura S,Ai M,Otokozawa S,Schaefer EF

    更新日期:2010-09-01 00:00:00