Search results for "Insulin-like growth factor-binding protein"

showing 5 items of 5 documents

Elevated serum levels of IGF-binding protein 2 in patients with non-seminomatous germ cell cancer: correlation with tumor markers alpha-fetoprotein a…

2008

Background/aimsAlterations of the IGF system have been described in several different types of cancer. However, no information is available about the role of the IGF system in patients with non-seminomatous germ cell cancer.MethodsFree IGF-I, IGF-II, acid-labile subunit, and IGF-binding proteins (IGFBPs) 1–4 were analyzed by specific RIAs in 32 patients with untreated non-seminomas and compared with IGFBP levels of 38 healthy controls. Serum IGFBPs were analyzed by western ligand blotting (WLB) and immunoblotting. In 16 patients, IGFBP profiles were measured before, during, and after treatment.ResultsIn patients with testicular cancer, IGF-II levels were on average 1.44-fold higher than in …

AdultMalemedicine.medical_specialtyEndocrinology Diabetes and MetabolismProtein subunitBiologyChorionic GonadotropinInsulin-like growth factor-binding proteinHuman chorionic gonadotropinEndocrinologyTesticular NeoplasmsInsulin-Like Growth Factor IIRecurrenceInternal medicinemedicineBiomarkers TumorHumansIn patientTesticular cancerBinding proteinCancerGeneral MedicineMiddle AgedNeoplasms Germ Cell and Embryonalmedicine.diseaseUp-RegulationInsulin-Like Growth Factor Binding ProteinsInsulin-Like Growth Factor Binding Protein 2EndocrinologyInsulin-Like Growth Factor Binding Protein 3Case-Control Studiesbiology.proteinalpha-FetoproteinsOncofetal antigenProtein Processing Post-TranslationalEuropean journal of endocrinology
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A combined approach for gene discovery identifies insulin-like growth factor-binding protein-related protein 1 as a new gene implicated in human endo…

2003

In the past, human endometrial receptivity has been investigated by chasing specific molecules throughout the menstrual cycle. Now the genomic approach allows us to investigate the hierarchical contribution of a high number of genes to a specific function. In this study, we analyzed differentially the gene expression pattern of 375 human cytokines, chemokines, and related factors, plus that of their receptors, in endometrial receptivity. To do this, we used a combined approach of human endometrium and cell lines. We have compared the gene expression pattern in receptive vs. prereceptive human endometria and contrasted the results with gene expression in the highly adhesive cell line (to JAR…

Endocrinology Diabetes and Metabolismmedicine.medical_treatmentClinical BiochemistryBiologyEndometriumBiochemistryInsulin-like growth factor-binding proteinCell LineEndometriumMiceEndocrinologyPregnancyGene expressionmedicineCell AdhesionAnimalsHumansRNA MessengerReceptorGeneIn Situ HybridizationMenstrual CycleFluorescent DyesMessenger RNAReverse Transcriptase Polymerase Chain ReactionBiochemistry (medical)Epithelial CellsMolecular biologyImmunohistochemistryInsulin-Like Growth Factor Binding ProteinsCytokinemedicine.anatomical_structureBlastocystGene Expression RegulationCell culturebiology.proteinFemaleStromal CellsCarrier ProteinsThe Journal of clinical endocrinology and metabolism
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Altered Regulation of Insulin-Like Growth Factor Binding Protein-I in Patients With Polycystic Ovary Syndrome

1995

Insulin-like growth factor (IGF-I) action is influenced by circulating as well as tissue levels of its binding proteins. Because serum IGF binding protein-1 (IGFBP-1) levels have been found to be decreased in patients with polycystic ovary syndrome (PCOS), we tested the hypothesis that regulation of IGFBP-1 secretion may be different in patients with PCOS compared with normal women. We studied 15 normal ovulatory women and 15 women with PCOS of similar age (21 ± 1 and 22 ± 1 years, respectively). All subjects were studied after an overnight fast between days 5–8 after spontaneous or progestin-induced menses. Perturbations included the administration of insulin intravenously, maintenance of …

medicine.medical_specialty030219 obstetrics & reproductive medicineInsulinmedicine.medical_treatmentGrowth factorSerum insulinObstetrics and GynecologyOctreotideBiologyPolycystic ovaryInsulin-like growth factor-binding protein03 medical and health sciences0302 clinical medicineEndocrinologyInternal medicinemedicinebiology.proteinIn patientSecretion030217 neurology & neurosurgerymedicine.drugJournal of the Society for Gynecologic Investigation
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The Divergent Effect of Insulin-Like Growth Factor Binding Protein (IGFBP) - 1 on IGF-induced Steroidogenesis in Bovine Adrenocortical Cells is not d…

2007

In previous studies we have shown that insulin-like growth factor (IGF)-II stimulates basal as well as ACTH-induced cortisol secretion from bovine adrenocortical cells more potently than IGF-I. The steroidogenic effect of both, IGF-I and IGF-II, is mediated through the IGF-I receptor and modified by locally produced IGF binding proteins. Further studies demonstrate that bovine adrenocortical cells do synthesize IGFBP-1 to -4 and that their secretion is regulated differentially by IGFs and ACTH. Since IGFBP-1 selectively is induced 3- to 4- fold by ACTH, the aim of the following studies was to evaluate the effect of IGFBP-1 on IGF-induced cortisol secretion from bovine adrenocortical cells i…

Cortisol secretionmedicine.medical_specialtyHydrocortisoneEndocrinology Diabetes and Metabolismmedicine.medical_treatmentBiologyCulture Media Serum-FreeInsulin-like growth factor-binding proteinInsulin-like growth factorEndocrinologyAdrenocorticotropic HormoneSomatomedinsInternal medicineInternal MedicinemedicineAnimalsPhosphorylationReceptorCells CulturedAdrenal cortexGrowth factorGeneral MedicineLigand (biochemistry)Insulin-Like Growth Factor Binding Protein 1KineticsEndocrinologymedicine.anatomical_structureInsulin-like growth factor 2Adrenal Cortexbiology.proteinCattlehormones hormone substitutes and hormone antagonistsExperimental and Clinical Endocrinology & Diabetes
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Alterations in the sensitivity of serum insulin-like growth factor 1 and insulin-like growth factor binding protein-3 to octreotide in polycystic ova…

1995

Objective To determine if the somatostatin analog, octreotide, affects insulin and related peptides and, hence, androgen levels differently between polycystic ovary syndrome (PCOS) patients and controls. Design Prospective controlled trial. Setting Reproductive endocrinology clinic of our medical center. Patients Eleven women with PCOS and six matched ovulatory controls. Interventions Octreotide (100 μg) was administered subcutaneously in the midfollicular phase. Serum was obtained before and at 60, 120, 180, and 240 minutes after octreotide. Main Outcome Measures Fasting insulin, insulin-like growth factor 1 (IGF-1), insulin-like growth factor binding protein-3 (IGFBP-3), T, androstenedion…

Adultmedicine.medical_specialtyAdolescentendocrine system diseasesmedicine.drug_classmedicine.medical_treatmentOctreotideBiologyOctreotideInsulin-like growth factor-binding proteinInternal medicinemedicineHumansInsulinTestosteroneProspective StudiesInsulin-Like Growth Factor ITestosteronePancreatic hormoneInsulinAndrostenedioneObstetrics and GynecologyFastingLuteinizing HormoneAndrogenPolycystic ovaryInsulin-Like Growth Factor Binding ProteinsSomatostatinEndocrinologyReproductive Medicinebiology.proteinFemaleCarrier ProteinsPolycystic Ovary Syndromemedicine.drugFertility and Sterility
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