Abstract:
:Somatostatin has been found in the pineal gland of several animal species, which suggests that it may be involved in the regulation of melatonin secretion. Whether somatostatin has regulatory influence on melatonin secretion in man has never been unequivocally shown. We studied the nocturnal melatonin secretion in 8 healthy volunteers, and 6 women with untreated primary hypothyroidism, a disease state that is associated with increased nocturnal secretion of melatonin. The participants were given subcutaneous injections at 18:00 h and 23:00 h of either saline or octreotide (Sandostatin; each injection 50 microg). During the nights when the healthy volunteers were given octreotide, melatonin secretion was similar to that recorded during administration of saline. Also the urinary excretion of melatonin was of similar magnitude at these two occasions. By contrast, the GH secretion was significantly lower the nights the healthy controls were given octreotide (GH AUC 22.6+/-5.4 mU/l x h during octreotide and 126.6+/-21.9 mU/l x h during saline; p<0.01). The patients with hypothyroidism also showed similar nocturnal melatonin secretion during octreotide and saline. Urinary excretion of melatonin also remained unchanged, as did GH secretion. The total nocturnal secretion of TSH was, however, significantly reduced by octreotide (TSH AUC 562+/-136 mU/l x h during octreotide and 851+/-185 mU/l x h during saline; p<0.05), thus suggesting that 100 microg of octreotide should be sufficient to inhibit also the pinealocytes if their function were regulated by somatostatin. Since exogenous somatostatin--in the form of octreotide--fails to influence nocturnal secretion and urinary excretion of melatonin in normal subjects and in patients with primary hypothyroidism, it is reasonable to assume that endogenous somatostatin may not be an important regulator of melatonin secretion in man.
journal_name
J Endocrinol Investjournal_title
Journal of endocrinological investigationauthors
Wikner J,Wetterberg L,Röjdmark Sdoi
10.1007/BF03343604keywords:
subject
Has Abstractpub_date
1999-07-01 00:00:00pages
527-34issue
7eissn
0391-4097issn
1720-8386journal_volume
22pub_type
临床试验,杂志文章,随机对照试验abstract:PURPOSE:Metastases to the thyroid gland are uncommon and they represent 1-3% of all thyroid malignancy. The aim of this study is to analyze the diagnostic problems and the role of surgery in metastatic lesions to the thyroid. METHODS:We retrospectively analyzed all patients who had undergone thyroidectomy at our Cente...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/s40618-020-01282-w
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:Aim of this study is to report on basal clinical phenotype and follow up after diagnosis, of patients with 17beta-hydroxysteroid-dehydrogenase type 3 (17beta-HSD3) deficiency in Italy. SETTING:Pediatric Endocrine Departments, University Hospitals. PATIENTS:The cases of 5 Italian subjects affected by 17beta-...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345738
更新日期:2009-09-01 00:00:00
abstract::Traumatic brain injury (TBI)-induced hypopituitarism remains a relevant medical problem, because it may affect a significant proportion of the population. In the last decade important studies have been published investigating pituitary dysfunction after TBI. Recently, a group of experts gathered and revisited the topi...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.3275/7805
更新日期:2011-07-01 00:00:00
abstract::A rapid routine method of determining estrogens in non-pregnancy urine is described. It involves the following steps: 1) Dilution of each urine sample with an equal volume of saturated ammonium sulfate solution; 2) Addition of Sephadex G-15 beads; 3) Filtration of the mixture; 4) Liberation of the estrogens from the S...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350365
更新日期:1978-04-01 00:00:00
abstract::The effect of exogenous prednisone on serum thyrotropin (TSH), thyroxine (T4), and triiodothyronine (T3) concentrations was investigated in four patients with non-functioning thyroid glands receiving T4 replacement therapy. Orally administered prednisone, in a dose of 20 mg each day for nine days, resulted in a signif...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350367
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abstract::Neurological disorders, such as seizures, are not infrequently associated with anti-leukemic therapy. It has been hypothesized that a disrupted peptidergic transmission between neurons could be the cellular basis of the neurological dysfunction. Since endogenous opioids have been recently found to alter neuronal funct...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350022
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03347227
更新日期:2005-05-01 00:00:00
abstract::Juvenile Rheumatoid Arthritis (JRA) is frequently associated with osteoporosis. In order to determine if JRA osteoporosis is related to reduced formation or to increased bone resorption or both, serum levels of calcium (Ca), phosphorus (PO4), magnesium (Mg), alkaline phosphatase (ALP), parathormone (PTHi), 25-hydroxyv...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03347283
更新日期:1998-01-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349858
更新日期:1996-03-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 临床试验,杂志文章
doi:10.1007/BF03348003
更新日期:1997-09-01 00:00:00
abstract::Pyoderma gangrenosum is a rare chronic and recurrent skin disease characterized by progressing lesions from papulopustules to large necrotic sterile ulcers. Its definite etiology remains unknown. In a 40-year-old woman with typical pyoderma gangrenosum an intrasellar mass with suprasellar extension was diagnosed and r...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349595
更新日期:1990-09-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.3275/7571
更新日期:2011-09-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/BF03348712
更新日期:1992-03-01 00:00:00
abstract::This study examined the association of depression, anxiety, and stress with Type 2 diabetes (T2DM) in Bahrain, an island-country with a very high prevalence of T2DM. This was a cross-sectional study involving administering Depression Anxiety Stress Scales (DASS)-21 structured depression, anxiety, and stress scale to 1...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345642
更新日期:2008-11-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.3275/7879
更新日期:2012-06-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349835
更新日期:1995-12-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-019-01140-4
更新日期:2020-05-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348554
更新日期:1985-12-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
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更新日期:2003-09-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:
更新日期:2011-07-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345471
更新日期:1999-01-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348606
更新日期:1990-06-01 00:00:00
abstract::A study of the effects of salmon calcitonin (sCT) infusion on blood sugar and serum insulin levels under basal conditions and after intravenous glucose load in normal subjects is reported. Under basal conditions, a 30 min infusion of sCT at approximately a rate of 1 U/min produced a highly significant increase in the ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349315
更新日期:1979-04-01 00:00:00
abstract::A 41-year-old male with primary hypothyroidism and a huge TSH-secreting pituitary tumor presented with a bleeding nasal mass that was initially misdiagnosed as a paraganglioma. Other unique features of the case include lack of complaints related to hypothyroidism, an extremely elevated TSH level of 3474 mU/l, and a lo...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03343584
更新日期:1999-06-01 00:00:00
abstract:BACKGROUND AND AIM:Evidences suggest that androgen deficiency is associated with sudden cardiac death (SCD). Our purpose was to analyse some electrocardiographic (ECG) markers of repolarization phase in hypogonadal patients either at baseline or after testosterone replacement therapy (TRT). PATIENTS AND METHODS:Baseli...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-019-01026-5
更新日期:2019-09-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03343715
更新日期:2000-04-01 00:00:00
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journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
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更新日期:2016-09-01 00:00:00
abstract::Recent evidence suggests that patients with traumatic brain injury (TBI) are at substantial risk of hypopituitarism. The pathomechanisms, however, are not completely understood yet. Little is known about the association of morphological changes in the sella region with pituitary function in TBI. In this study, we asse...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
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更新日期:2007-04-01 00:00:00
abstract::In 1939 Alan Turing, a major scholar in the field of mechanical computation, described a system whose computational power was beyond that of a discrete, finite state machine (Turing Machine). The composition of this system was likely the first example of what is now called an hybrid computational system. Since then, d...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:
更新日期:2004-01-01 00:00:00
abstract::Antithyroid hormone autoantibodies (THBA), described in both humans and animals, result in variable interference when thyroid hormone plasma levels are measured by immunoassays. We previously described a quick chromatographic method to detect circulating THBA in humans. In the present experience, we applied the method...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03347880
更新日期:1996-12-01 00:00:00