Cis-unsaturated free fatty acids block VIP-mediated GH and PRL secretion by perturbing the cAMP/protein kinase A pathway.

Abstract:

:Cis-unsaturated free fatty acids (FFA) like oleic acid are strong blockers of both basal and stimulated GH secretion in vivo by acting directly on the somatotroph cell. Several lines of evidence suggest that this inhibitory action is the result of a perturbation of the function of several plasma membrane integral proteins. It has been reported recently that cis-FFA are able to block several steps in the inositolphosphates/phospholipase C/Ca2+ (InsPs/PLC/Ca2+) signal transduction pathway triggered by the activation of the TRH receptor. In this paper we present evidence showing that the inhibition of growth hormone (GH) and prolactin (PRL) secretion by cis-FFA in vitro is also exerted at several different levels on the cAMP-protein kinase A (cAMP/PKA) pathway triggered by the stimulation of the vasoactive intestinal peptide (VIP) receptor in pituitary clonal cells. By means of a sequential analysis of signal transduction events, we observed that cis-unsaturated FFA; (1) reduce the activity of adenylate cyclase; (2) perturb the activity of protein kinase A; (3) suppress the VIP-triggered Ca2+ influx, and (4) do not perturb VIP binding or the homologous desensitization of the VIP receptor.

journal_name

Pituitary

journal_title

Pituitary

authors

Pérez FR,Camiña JP,Menéndez C,Beiras A,Casabiell X,Casanueva FF

doi

10.1023/a:1009962624036

subject

Has Abstract

pub_date

1998-04-01 00:00:00

pages

25-32

issue

1

eissn

1386-341X

issn

1573-7403

journal_volume

1

pub_type

杂志文章
  • Management of cystic prolactinomas: a review.

    abstract:INTRODUCTION:Cystic prolactinoma is a variant of prolactin-secreting pituitary adenoma. The strategies for the management of cystic prolactinoma have not been addressed thoroughly in clinical guidelines. METHODS:A literature search was performed using Pubmed to review the current approaches to the treatment of cystic ...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-018-0888-0

    authors: Nakhleh A,Shehadeh N,Hochberg I,Zloczower M,Zolotov S,Taher R,Daoud Naccache D

    更新日期:2018-08-01 00:00:00

  • Malignant transformation in non-functioning pituitary adenomas (pituitary carcinoma).

    abstract::Non-functioning pituitary carcinomas (NFPC) are defined as tumours of adenophyseal origin with craniospinal or systemic dissemination, with the absence of a hormonal hypersecretion syndrome. These are a histologically heterogenous group of tumours, comprising gonadotroph, null cell, "silent" tumours of corticotroph, s...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-017-0857-z

    authors: Lenders N,McCormack A

    更新日期:2018-04-01 00:00:00

  • Acromegaly secondary to an incidentally discovered growth-hormone-releasing hormone secreting bronchial carcinoid tumour associated to a pituitary incidentaloma.

    abstract::In this report we emphasize the opportunity of considering the uncommon causes of chronic GH-excess in the initial diagnostic process, such as GHRH hypersecretion, especially in the presence of ambiguous pituitary neuroimaging. This topic may have an important clinical significance in order to plan the most cost-effec...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-008-0146-y

    authors: Verrua E,Ronchi CL,Ferrante E,Ferrari DI,Bergamaschi S,Ferrero S,Zatelli MC,Branca V,Spada A,Beck-Peccoz P,Lania AG

    更新日期:2010-09-01 00:00:00

  • Clinical and biochemical manifestations of Cushing's.

    abstract:INTRODUCTION:Cushing's syndrome is associated with a number of clinical manifestations and co-morbidities which may not resolve even after long-term remission leading to excessive mortality. MATERIALS AND METHODS:This review summarizes the main manifestations of Cushing's syndrome (active or in remission) with particu...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-014-0631-4

    authors: Ntali G,Grossman A,Karavitaki N

    更新日期:2015-04-01 00:00:00

  • Endoscopic endonasal approach for pituitary adenomas: a series of 555 patients.

    abstract:PURPOSE:To report the results of a consecutive series of patients who underwent an endoscopic endonasal approach (EEA) for resection of a pituitary adenoma and compare them to previous series of microscopic and endoscopic approaches. METHODS:A retrospective review of clinical and radiographic outcomes of a consecutive...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-013-0502-4

    authors: Paluzzi A,Fernandez-Miranda JC,Tonya Stefko S,Challinor S,Snyderman CH,Gardner PA

    更新日期:2014-08-01 00:00:00

  • Can tissue biomarkers reliably predict the biological behavior of craniopharyngiomas? A comprehensive overview.

    abstract:BACKGROUND:The growing interest in the molecular and genetic alterations of craniopharyngiomas (CPs) is embodied in recent studies revealing insights into the CP tumorigenesis and identifying novel molecular pathways amenable of targeted therapies. The actual impact of this new information, however, remains inconclusiv...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-018-0890-6

    authors: Prieto R,Pascual JM

    更新日期:2018-08-01 00:00:00

  • A case of lymphocytic infundibuloneurohypophysitis: histophathological studies.

    abstract::A 57-year-old woman presented with 2-year history of polyuria and polydipsia. Hormonal studies revealed almost normal anterior pituitary function and central diabetes insipidus. Magnetic resonance imaging showed thickening of the pituitary stalk and enlargement of the neurohypophysis without high intensity of the post...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1023/a:1009914711287

    authors: Waki K,Yamada S,Ozawa Y,Seki K,Endo Y

    更新日期:1999-05-01 00:00:00

  • Double pituitary lesions in three patients with Cushing's disease.

    abstract::Double pituitary adenomas are rare in surgical specimens and the most common clinical feature in reported patients has been acromegaly. We report 3 cases of double pituitary lesions in patients who presented with Cushing's disease. In a 22-year-old man (case 1) with delayed puberty and low testosterone levels, mild hy...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1023/a:1011499609096

    authors: Meij BP,Lopes MB,Vance ML,Thorner MO,Laws ER Jr

    更新日期:2000-11-01 00:00:00

  • Evaluation of survivin splice variants in pituitary tumors.

    abstract:PURPOSE:Survivin is an apoptosis inhibitor, expressed in almost all types of human malignancies, but rarely in differentiated normal tissues. Recently, survivin gene splice variants with different anti-apoptotic activities have been reported. The current study was undertaken to examine the expression of survivin and it...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-014-0590-9

    authors: Waligórska-Stachura J,Andrusiewicz M,Sawicka-Gutaj N,Kubiczak M,Jankowska A,Liebert W,Czarnywojtek A,Waśko R,Blanco-Gangoo AR,Ruchała M

    更新日期:2015-06-01 00:00:00

  • Growth hormone granulation pattern and somatostatin receptor subtype 2A correlate with postoperative somatostatin receptor ligand response in acromegaly: a large single center experience.

    abstract::Acromegaly is associated with serious morbidity and mortality, if not well controlled. Approved somatostatin receptor ligands (SRLs) are a mainstay of medical therapy and exhibit preferential affinity for somatostatin receptor (SSTR) subtype 2. Our objective was to assess whether characteristic features of individual ...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-012-0445-1

    authors: Brzana J,Yedinak CG,Gultekin SH,Delashaw JB,Fleseriu M

    更新日期:2013-12-01 00:00:00

  • Primary central nervous system lymphoma mimicking pituitary apoplexy: case report.

    abstract::Lymphoma involving the pituitary gland is very rare and usually results from metastatic spread of systemic lymphoma. We present a case of primary central nervous system (CNS) large B cell lymphoma that manifested as pituitary apoplexy. A 45-year-old woman presented with headache, and then rapidly developed a third ner...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-008-0084-8

    authors: Quintero Wolfe S,Hood B,Barker J,Benveniste RJ

    更新日期:2009-01-01 00:00:00

  • Hypopituitarism in five PROP1 mutation siblings: long-lasting natural course and the effects of growth hormone replacement introduction in middle adulthood.

    abstract::Twenty years after the first description of combined hypopituitarism (CPHD) caused by PROP1 mutations, the phenotype of affected subjects is still challenging for clinicians. These patients suffer from pituitary hormone deficits ranging from IGHD to panhypopituitarism. ACTH deficiency usually develops later in life. P...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-020-01049-9

    authors: Doknic M,Gasic V,Stojanovic M,Pavlovic S,Marinkovic S,Miljic D,Pekic S,Manojlovic-Gacic E,Damjanovic D,Soldatovic I,Petakov M

    更新日期:2020-08-01 00:00:00

  • Radiological features for the approach in trans-sphenoidal pituitary surgery.

    abstract:INTRODUCTION:In order to perform trans-sphenoidal endoscopic pituitary surgery safely and efficiently it is important to identify anatomical and pituitary disease features on the pre-operative CT and MRI scans; thereby minimising the risk to surrounding structures and optimising outcomes. We aim to create a checklist t...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-017-0787-9

    authors: Twigg V,Carr SD,Balakumar R,Sinha S,Mirza S

    更新日期:2017-08-01 00:00:00

  • IGF-I assays: current assay methodologies and their limitations.

    abstract::The diagnosis of disorders of growth hormone (GH) is dependent upon accurate measurement of insulin-like growth factor-I (IGF-I) concentrations since serum IGF-I assays have been found to be useful as a screening tests for the presence of growth hormone deficiency (GHD) in children and in both children and adults they...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-007-0032-z

    authors: Clemmons DR

    更新日期:2007-01-01 00:00:00

  • Effect of gsp oncogene on somatostatin receptor subtype 1 and 2 mRNA levels in GHRH-responsive GH3 cells.

    abstract::Growth hormone releasing hormone (GHRH) signals via G protein-coupled receptors (GHRH-R) to enhance intracellular Galphas/adenylyl cyclase/cAMP signaling, which in turn has positive effects on GH synthesis and release, as well as proliferation of the GH-producing cells of the anterior pituitary gland. Some GH-producin...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-005-5245-4

    authors: Kim E,Sohn S,Lee M,Park C,Jung J,Park S

    更新日期:2005-01-01 00:00:00

  • Adamantinomatous craniopharyngiomas express tumor stem cell markers in cells with activated Wnt signaling: further evidence for the existence of a tumor stem cell niche?

    abstract:INTRODUCTION:Early disease onset, clinical manifestation, histomorphology, and increased tendency to relapse distinguish the adamantinomatous craniopharyngioma (adaCP) from the more favorable papillary variant (papCP). A molecular hallmark of adaCP is the activated Wnt signaling pathway indicated by nuclear β-catenin a...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-013-0543-8

    authors: Hölsken A,Stache C,Schlaffer SM,Flitsch J,Fahlbusch R,Buchfelder M,Buslei R

    更新日期:2014-12-01 00:00:00

  • Neuro-radiological features can predict hypopituitarism in primary autoimmune hypophysitis.

    abstract::Primary autoimmune hypophysitis (PAH) is considered an underdiagnosed disease, due to the difficulty in reaching a definitive diagnosis. PAH clinical diagnosis remains an exclusion diagnosis. We aimed to correlate PAH neuro-radiological signs to endocrine features and evaluate their prognostic role. 24 PAH cases were ...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-018-0892-4

    authors: Tartaglione T,Chiloiro S,Laino ME,Giampietro A,Gaudino S,Zoli A,Bianchi A,Pontecorvi A,Colosimo C,De Marinis L

    更新日期:2018-08-01 00:00:00

  • Acute administration of alprazolam, a benzodiazepine activating GABA receptors, inhibits cortisol secretion in patients with subclinical but not overt Cushing's syndrome.

    abstract::The purpose of this study is to verify whether acute pre-treatment with alprazolam (ALP), a benzodiazepine that inhibits HPA secretion in normal subjects, could better characterize patients with subclinical Cushing's syndrome (SCS) than the 1-mg dexamethasone test (DST). In 22 patients with SCS, 10 with overt Cushing'...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-012-0433-5

    authors: Giordano R,Berardelli R,Karamouzis I,D'Angelo V,Picu A,Zichi C,Fussotto B,Manzo M,Mengozzi G,Ghigo E,Arvat E

    更新日期:2013-09-01 00:00:00

  • Subclinical Cushing's syndrome.

    abstract::Clinically inapparent adrenal masses, or adrenal incidentalomas, are discovered inadvertently in the course of workup or treatment of unrelated disorders. Cortical adenoma is the most frequent type of adrenal incidentaloma accounting for approximately 50% of cases in surgical series and even greater shares in medical ...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-005-4024-6

    authors: Terzolo M,Reimondo G,Bovio S,Angeli A

    更新日期:2004-01-01 00:00:00

  • Sellar collision tumor involving pituitary gonadotroph adenoma and chondroma: a potential clinical diagnosis.

    abstract::We report on a 74-year-old male patient who presented with progressive neuroophthalmologic symptoms soon after the administration of a long-acting gonadotropin-releasing hormone agonist for treatment of a prostate cancer. Imaging revealed a destructively growing and extensively calcified sellar mass inconsistent with ...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-009-0199-6

    authors: Sahli R,Christ E,Kuhlen D,Giger O,Vajtai I

    更新日期:2011-12-01 00:00:00

  • Adverse anthropometric risk profile in biochemically controlled acromegalic patients: comparison with an age- and gender-matched primary care population.

    abstract::GH and IGF-1 play an important role in the regulation of metabolism and body composition. In patients with uncontrolled acromegaly, cardiovascular morbidity and mortality are increased but are supposed to be normalised after biochemical control is achieved. We aimed at comparing body composition and the cardiovascular...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-010-0218-7

    authors: Dimopoulou C,Sievers C,Wittchen HU,Pieper L,Klotsche J,Roemmler J,Schopohl J,Schneider HJ,Stalla GK

    更新日期:2010-09-01 00:00:00

  • Isolated familial somatotropinomas: clinical features and analysis of the MEN1 gene.

    abstract::Isolated familial somatotropinomas (IFS) rarely occurs in the absence of multiple endocrine neoplasia type I (MEN1) or the Carney complex. In the present study we report two Italian siblings affected by GH-secreting adenomas. There was no history of parental consanguinity. The sister presented at 18 years of age with ...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1023/a:1022193015993

    authors: De Menis E,Prezant TR

    更新日期:2002-01-01 00:00:00

  • Geometric survey on magnetic resonance imaging of growth hormone producing pituitary adenoma.

    abstract::Apart from the radiologic features regarding size and invasiveness, we had noticed some differences in morphology among types of pituitary adenomas. We conducted this study to verify the differences in radiologic morphology between growth hormone producing pituitary adenomas (GHoma) and nonfunctioning pituitary adenom...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-013-0479-z

    authors: Bakhtiar Y,Hanaya R,Tokimura H,Hirano H,Oyoshi T,Fujio S,Bohara M,Arita K

    更新日期:2014-04-01 00:00:00

  • Cushing's disease.

    abstract::Cushing's disease, i.e., pituitary ACTH-secreting adenoma causing excess glucocorticoid secretion, is a rare disease with significant mortality and morbidity. Timely diagnosis and appropriate treatment can alter the course of the disease and are therefore mandatory. First step of the diagnostic work-up is the endogeno...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-006-0407-6

    authors: De Martin M,Pecori Giraldi F,Cavagnini F

    更新日期:2006-01-01 00:00:00

  • Roles of insulin-like growth factor-I and growth hormone in mediating insulin resistance in acromegaly.

    abstract::Most patients with acromegaly have some degree of insulin resistance. The principal mediator of insulin resistance in acromegaly is hypersecretion of growth hormone. Growth hormone acts at several levels to block insulin actions including inhibiting phosphorylation of the insulin receptor and one of its principal sign...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1023/a:1023321421760

    authors: Clemmons DR

    更新日期:2002-01-01 00:00:00

  • Thrombin generation in Cushing's Syndrome: do the conventional clotting indices tell the whole truth?

    abstract::Cushing's Syndrome (CS) is associated with an increased mortality, where hypercoagulability seems to have a crucial role in both arterial and venous thrombosis. Parameters of in vitro thrombin generation (TG) such as lag time, peak thrombin and endogenous thrombin potential (ETP), that describe the time until thrombin...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-013-0467-3

    authors: Koutroumpi S,Spiezia L,Albiger N,Barbot M,Bon M,Maggiolo S,Gavasso S,Simioni P,Frigo A,Mantero F,Scaroni C

    更新日期:2014-02-01 00:00:00

  • Thyroid-stimulating hormone (thyrotropin)-secretion pituitary adenoma in an 8-year-old boy: case report.

    abstract::In this report, an extremely rare case of pediatric thyrotropin-secreting pituitary macroadenoma (TSHoma) is described. An 8-year-old boy, complaining of unsteady gait, was suspected of endocrinopathy because of emaciation and muscle weakness of the legs. Endocrinological work-up established a diagnosis of hyperthyroi...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-010-0275-y

    authors: Nakayama Y,Jinguji S,Kumakura S,Nagasaki K,Natsumeda M,Yoneoka Y,Saito T,Fujii Y

    更新日期:2012-03-01 00:00:00

  • Childhood craniopharyngioma.

    abstract::Craniopharyngiomas (CP) are partly cystic embryogenic malformations of the sellar and parasellar region. With an overall incidence of 0.5-2.0 new cases/million population/year, approximately 30-50 % of all cases represent childhood CP. Typical manifestations at diagnosis are headache, visual impairment, polyuria/polyd...

    journal_title:Pituitary

    pub_type: 杂志文章,评审

    doi:10.1007/s11102-012-0401-0

    authors: Müller HL

    更新日期:2013-03-01 00:00:00

  • Phospho-histone H3 (pHH3) immuno-reactivity as a prognostic marker in non-functioning pituitary adenomas.

    abstract::Nonfunctioning pituitary adenomas (NFPA) are typically benign neoplasms that can cause significant morbidity through local mass effects. MIB-1/Ki-67 and p53 immuno-reactivity are used to predict aggressive behavior but have known limitations. No marker to date is widely used to reliably predict tumor progression. Phos...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-011-0367-3

    authors: Hightower E,Cabanillas ME,Fuller GN,McCutcheon IE,Hess KR,Shah K,Waguespack SG,Corley LJ,Devin JK

    更新日期:2012-12-01 00:00:00

  • Angiographically documented cerebral vasospasm following transsphenoidal surgery for pituitary tumors.

    abstract::Symptomatic cerebral vasospasm (CVS) after transsphenoidal surgery (TSS) is very rare compared with vasospasm resulting from aneurysmal subarachnoid hemorrhage (SAH). Fewer than six cases documented by cerebral angiography have been reported. We evaluated the records of 15 patients in whom SAH developed after TSS. The...

    journal_title:Pituitary

    pub_type: 杂志文章

    doi:10.1007/s11102-012-0415-7

    authors: Kim EH,Oh MC,Kim SH

    更新日期:2013-06-01 00:00:00