Abstract:
:Pituitary collision tumors are rare. They may create difficult diagnostic problems and their histogenesis is not clear. We report here an unusual case of a somatotroph adenoma colliding with a gonadotroph adenoma.The 64-year-old man had clinical acromegaly. His blood growth hormone level was elevated and magnetic resonance imaging demonstrated a pituitary tumor. The surgically removed sellar mass was investigated by histology, immunocytochemistry and electron microscopy. Morphologic study revealed a collision tumor; one was a somatotroph adenoma, the other a gonadotroph adenoma. Authors call attention to the difficulties in clinical, imaging and pathological diagnosis. Detailed morphologic studies are needed to establish the presence of two distinct tumors composed of two different cell types.
journal_name
J Endocrinol Investjournal_title
Journal of endocrinological investigationauthors
Syro LV,Horvath E,Kovacs Kdoi
10.1007/BF03343674keywords:
subject
Has Abstractpub_date
2000-01-01 00:00:00pages
37-41issue
1eissn
0391-4097issn
1720-8386journal_volume
23pub_type
杂志文章abstract::The enterohepatic circulation of thyroxine (T4) and triiodothyronine (T3) is higher in thyrotoxicosis. Bile-salt sequestrants bind iodothyronines and thereby increase their fecal excretion. We, therefore, evaluated the effect of colestipol-hydrochloride administration on clinical and biochemical indices of patients wi...
journal_title:Journal of endocrinological investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF03348036
更新日期:1998-12-01 00:00:00
abstract:PURPOSE:Iodine plays a pivotal role in adaptation during the transition from intrauterine to extrauterine life. Although it is well known that the placenta plays a role in iodine storage, a relationship between the neonatal thyroid stimulating hormone (TSH) peak and placental iodine concentration has not been establish...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-020-01399-y
更新日期:2020-08-28 00:00:00
abstract::Abnormalities of the gene encoding the sequence-specific DNA-binding protein, nuclear phosphorprotein p53, are among the most common genetic alterations observed in human cancers. A mutation of this tumor suppressor gene has been reported with a low prevalence in differentiated thyroid carcinomas, while the prevalence...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03347774
更新日期:1994-11-01 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::Human thyroid blood flow rate (TBF) was measured during operations by electromagnetic flowmetry in 75 euthyroid patients with normal thyroid tissue, nodular goiter, or solitary adenoma, and in 22 hyperthyroid patients with diffuse or nodular goiter. Blood flow rate was measured in one to four of the thyroid arteries. ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349454
更新日期:1981-07-01 00:00:00
abstract::There is increasing evidence that androgen therapy in men may be effectively applied in several conditions to improve well being and health. Classical indications for androgen therapy in males are represented by primary or secondary hypogonadism, delayed puberty, aplastic anemia and that secondary to chronic renal fai...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/BF03343707
更新日期:2000-03-01 00:00:00
abstract::Circulating TSH bioactivity may vary in several clinical and experimental conditions. Since the reliability of the current methods for the measurement of TSH bioactivity is limited, a new bioassay based on cAMP accumulation in Chinese Hamster Ovary cells transfected with recombinant human TSH receptor (CHO-R) was set ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348894
更新日期:1993-07-01 00:00:00
abstract::It has been reported that adult obese subjects present a reduced growth hormone secretion. As no data are available in the pubertal period, which is characterized in lean subjects by an increased spontaneous growth hormone secretion, the growth hormone circadian concentration was studied in a group of 18 obese male su...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350166
更新日期:1988-07-01 00:00:00
abstract:OBJECTIVE:To assess the relationship of waist circumference and weight/height ratio with height, and their association with components of the metabolic syndrome, in Type 2 diabetic patients. DESIGN:multicenter cross-sectional survey on a cohort enrolled in a prospective observational study. SUBJECTS:13,232 patients (...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,多中心研究
doi:10.1007/BF03347475
更新日期:2004-06-01 00:00:00
abstract:INTRODUCTION:Insulinomas are a rare type of pancreatic neuroendocrine tumours characterized by insulin hypersecretion. They are considered malignant when metastases are present. Traditional therapies often promote only temporarily symptomatic relief and may be associated with severe adverse effects. There is scarce exp...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/s40618-018-0911-3
更新日期:2019-03-01 00:00:00
abstract:PURPOSE:Remission of acromegaly has been reported after somatostatin analogs withdrawal, but not after withdrawal of combination therapy with cabergoline, and only in case reports of patients controlled by cabergoline alone. METHODS:To establish the remission rates (normal IGF-1 for age/sex: IGF-1 ≤ 1.00 xULN) after w...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,多中心研究
doi:10.1007/s40618-016-0595-5
更新日期:2017-05-01 00:00:00
abstract::Erythrocytes glutathione (GSH) levels were measured in erythrocytes from 33 subjects, at baseline and after 2-hour glucose loading in order to investigate the effect of glucose ingestion on the erythrocyte GSH. According to the World Health Organisation criteria 18 subjects had normal glucose tolerance (NGT)(mean age ...
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::The assessment of growth hormone (GH) secretory status is often difficult because of the intermittent nature of GH release and resulting wide swings in plasma GH levels. Urinary GH excretion holds promise as an index of integrated plasma GH free of this limitation, but technical problems have prevented its use until r...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350732
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:Neuroendocrine dysfunction in polycystic ovary syndrome (PCOS) was addressed by studying the steroid hormone changes in women with PCOS with either high or normal LH levels leading to inferences regarding the primacy of elevated LH in the pathophysiology of PCOS. METHODS:A cross-sectional study was designed ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345319
更新日期:2005-11-01 00:00:00
abstract::The aim of the study was to assess iodine status in over 3800 young male subjects aged 18, living in 6 different provinces of Piemonte and in Aosta Valley, Italy. A cross-sectional study on 3837 young male subjects undergoing medical evaluation preliminary to military enrolment was performed. Spot urine samples were o...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349155
更新日期:2003-12-01 00:00:00
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
更新日期:1989-10-01 00:00:00
abstract:PURPOSE:In our previous study, we introduced a rat model of polycystic ovary syndrome (PCOS) induced by prenatal exposure to a single dose of testosterone on embryonic day 20. In the current study, we aimed to investigate whether prenatal exposure to a single dose of testosterone could also induce metabolic disturbance...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-014-0198-y
更新日期:2015-05-01 00:00:00
abstract:OBJECTIVE:Globalisation has extended to the kitchen and the Asian cuisine has gained international popularity with sushi and seaweed now being widespread. We explored the possible acute adverse effects of an iodine load from a single sushi-and-seaweed meal as seaweed iodine may induce thyroid dysfunction. METHODS:Nine...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,随机对照试验
doi:10.1007/s40618-019-01122-6
更新日期:2020-04-01 00:00:00
abstract:INTRODUCTION:Impact of in utero exposure to nicotine, on the structure of the thyroid-pituitary axis and the parathyroid glands have been examined in 1-month-old rats and compared with that of thiocyanate. MATERIALS AND METHODS:Three pregnant female groups were used; control, nicotine and thiocyanate. Treatment starte...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/s40618-013-0043-8
更新日期:2014-05-01 00:00:00
abstract::The coexistence of hyperparathyroidism complicating thyrotoxicosis is quite rare. We report the case of one patient who presented with thyrotoxicosis, (total thyroxine of 15.1 micrograms/dl (5-13), free thyroxine index of 18 (4-15) and triiodothyronine by RIA of 305 ng/dl (70-230) and asymptomatic hypercalcemia of 15 ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/BF03346819
更新日期:1991-04-01 00:00:00
abstract::Hypocalcemia associated with labor and lactation is a rare condition reported previously in patients with hypovitaminosis D. We here describe a case of a young woman in whom symptomatic severe hypocalcemia appeared after her second delivery, early in lactation. At the end of lactation the condition worsened. We review...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章,评审
doi:10.1007/BF03345501
更新日期:2002-06-01 00:00:00
abstract:AIM:We investigated inpatients with and without Type 2 diabetes mellitus, aged over 60 yr, to compare their vitamin D status and calcium homeostatic parameters. MATERIALS AND METHODS:We studied 140 patients consecutively admitted to our Internal Medicine Unit during the year 2010 (61 from November to April, 79 from Ma...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.3275/8236
更新日期:2012-10-01 00:00:00
abstract::We report two patients with incidentally discovered enlarged parathyroid glands while performing neck ultrasonography (US) for thyroid nodules. The parathyroid masses were seen as hypoechoic, homogeneous, oval nodules, separated from the thyroid gland. Both patients were completely asymptomatic, although subclinical e...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03343646
更新日期:1999-11-01 00:00:00
abstract::ACTH, beta lipotropin (beta LPH), beta endorphin (beta EP), Prolactin (PRL) and Cortisol were measured in the first five days of puerperium at 9:00, before and 30 minutes after suckling, in 7 healthy lactating women. With the exception of PRL plasma levels which decline, although remaining at high concentrations durin...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350534
更新日期:1982-11-01 00:00:00
abstract:OBJECTIVE:To our knowledge, no case of remission in autoimmune Addison's disease has previously been reported. We describe a patient with primary adrenal insufficiency caused by autoimmune adrenalitis in whom partial remission was observed after 7 yr. CASE:A 39-yr-old male was referred because of extreme fatigue, weig...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345623
更新日期:2008-07-01 00:00:00
abstract::To verify if the entity of the peak GH responses to the GHRH+arginine (ARG) test is able to show different degree forms of GH deficiency (GHD), we linked these responses with the number of other anterior pituitary deficits. These anterior pituitary deficits were also related with IGF-I levels. To this purpose, we stud...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03345381
更新日期:2005-03-01 00:00:00
abstract::Excess production of proopiomelanocortin (POMC)-derived peptides with aldosterone-stimulating activity has been suggested to play a pathogenetic role in idiopathic hyperaldosteronism (IHA). To further investigate this issue, the opiate receptor antagonist naloxone was administered to 14 patients with primary aldostero...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03350149
更新日期:1988-04-01 00:00:00
abstract::A 34-yr-old nulliparous black woman presented with hair loss, facial hirsutism, irregular menses and infertility associated with greatly increased serum total testosterone levels. The adrenal glands and the ovaries were normal on radiological and ultrasonographic investigation. Catheterization of the veins draining fr...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03348033
更新日期:1997-12-01 00:00:00
abstract::TSH has been incriminated in Graves' disease for increasing the production of antibodies against TSH receptor (TRAb). It has been, therefore, suggested that T4 administration after successful antithyroid drug (ATD) treatment may indirectly decrease the production of TRAb and, therefore, the frequency of recurrence of ...
journal_title:Journal of endocrinological investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF03348195
更新日期:2003-10-01 00:00:00
abstract::We studied 8 insulin dependent stable young diabetics with a mean age of 20 yr. Each patient received 10 mg of diazepam orally after with drawing the baseline blood sample. Subsequent samples were obtained at 30 min intervals for 150 min. The oral administration of diazepam resulted in a significant increase in serum ...
journal_title:Journal of endocrinological investigation
pub_type: 杂志文章
doi:10.1007/BF03349471
更新日期:1982-05-01 00:00:00