Abstract：
BACKGROUND:The study evaluates the circadian rhythm of melatonin in relation to sex and age and identified contemporary alterations in the secreton of some hypophyseal hormones, suggesting that melatonin may exert a modulatory action on the latter. METHODS:The melatonin metabolite (6-hydroxymelatonin sulfate) was assayed in urine samples from 48 subjects of both sexes aged between 25 and 60 years old using the RIA method described by Arendt, modified for the ise of iodine markers. A blood sample was taken from the same subjects to assay hypophyseal hormones. RESULTS:Melatonin secretion does not remain constant over 24 hours in young subjects of both sexes, but instead is rhythmic. This rhythmic secretion is lacking in adults, revealing a daytime pineal secreton that is surprisingly higher than in younger persons. A difference in secretion levels was also found between sexes, a higher melatonin peak in females compared to males. Some young female subjects reveal a contemporary hypersecretion of the somatotropic hormone in line with the falling nocturnal peak of melatonin. Subjects with latent hypothyroidism show a diminished melatonin peak compared to that in euthyroid subjects. CONCLUSIONS:Changes in pineal secretion between the second and sixth decade of life are characterised by the loss of rhythmic secretion, linked not only to the loss of the nocturnal peak but an increased daytime secretion compared to younger subjects. The other finding that emerged from this study was the difference in secretion levels between the sexes. Lastly, we affirm that the pineal gland may exert a modulating influence on the hypophysis.
journal_name
Minerva Endocrinoljournal_title
Minerva endocrinologicaauthors
Pallotti S,Nordio M,Giuliano Skeywords:
subject
Has Abstractpub_date
2002-06-01 00:00:00pages
73-7issue
2eissn
0391-1977issn
1827-1634journal_volume
27pub_type
杂志文章abstract：BACKGROUND:The aim of this study was to compare the diagnostic accuracy of fine needle biopsy (FNB) and intraoperative frozen-section biopsy (FS) regarding the surgical management of thyroid nodules. METHODS:A total of 812 patients with solitary nodule or dominant nodule in a multinodular goiter were evaluated. The pa...
journal_title：Minerva endocrinologica
pub_type： 临床试验,杂志文章
doi：
更新日期：1997-03-01 00:00:00
abstract：:Obesity has become a national epidemic and a disease of global magnitude. The numbers of patients with obesity have grown exponentially in the last 10 years to the degree that the Centers for Disease Control and Prevention reports that one third of the US population is obese. The prevalence of diabetes has grown by mo...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2013-06-01 00:00:00
abstract：:Medullary thyroid carcinoma arises from the C cells, which produce a characteristic hormone, calcitonin. At present, surgery is the main treatment modality. Medullary thyroid carcinoma is usually treated with total thyroidectomy and with removal of nodes in the central portion of the neck and upper mediastinum. Cervic...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：1998-12-01 00:00:00
abstract：:The desire to reproduce is a base human instinct. However, for many individuals, the chances of being able to have a genetic child are compromised by a number of factors. For some, therapies aimed at treating serious medical illness, such as cancer; result in a deleterious impact on the function of eggs and sperm in t...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：10.23736/S0391-1977.17.02666-9
更新日期：2018-03-01 00:00:00
abstract：AIM:The efficacy of low and high fixed dose radioactive iodine (RAI) therapy in patients with toxic nodular goiter was investigated. METHODS:Ninety-three patients (25 males, 68 females) were included into the study (32 patients with toxic adenoma, 61 patients with toxic multinodular goiter). Patients were treated with...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：
更新日期：2011-06-01 00:00:00
abstract：:A 49-year-old man presented with a 6-month history of weight loss, muscular weakness, easy fatigue, impotence, decreased visual acuity, campimetry defects. The results of radiologic and endocrine testing disclosed the presence of pituitary dysfunction due to pituitary stalk section caused by a giant suprasellar aneury...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：
更新日期：1989-10-01 00:00:00
abstract：:The present paper reports our personal data on gonadotropin therapy in patients with idiopathic secretory oligozoospermia due to a low biological activity of LH. In recent years the use of more specific diagnostic procedures, particularly the biological assay of gonadotropins, and a better knowledge of the biological ...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：1990-01-01 00:00:00
abstract：:Small cell lung cancer (SCLC) is a biologically aggressive tumor with a low long-term survival rate. SCLC is highly responsive to chemotherapy and surgery has a very limited role in its treatment because the disease is usually widely disseminated at the diagnosis. Good results from surgery have been reported in the sm...
journal_title：Minerva endocrinologica
pub_type： 临床试验,杂志文章
doi：
更新日期：2001-12-01 00:00:00
abstract：:As it's well known from the clinic, human syndromes depending on pituitary GH, ACTH and PRL secreting tumors are associated with alteration of glucose homeostasis. There is an hypothetical but convincing explanation for this, based on a number of concrete observations and experiments. The main mechanism for glucose in...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：1990-07-01 00:00:00
abstract：AIM:Patients with differentiated thyroid carcinoma (DTC) are closely monitored during the first decade after diagnosis. At intervals of 1-2 years withdrawal of suppressive doses of T(4) is recommended in order to check thyroglobulin (Tg) levels under increased TSH. T(4) therapy is usually withdrawn for 5 weeks (during ...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：
更新日期：2006-06-01 00:00:00
abstract：:The characterisation of adrenal lesions is a common radiological dilemma. Incidental adrenal lesions are commonly detected with computed tomography (CT), and lesion characterisation is critical. The prevalence of incidental adrenal lesions has been reported to be 2.3% at autopsy and 0.5-2% with abdominal CT. Such lesi...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2009-06-01 00:00:00
abstract：:Neuroendocrine tumours (NET) are relatively rare neoplasms affecting principally the gastroenteropancreatic tract, but with potential ubiquitary location, as the neural crest cells, origin of this group of tumours, are dispersed in various organs and tissues. After the discovery of somatostatin receptors (SSTR) over-e...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2008-09-01 00:00:00
abstract：:The use of GH treatment in subjects with a GH deficiency has led to contrasting results concerning its impact to develop thyroid hyperfunction, whereas many others have underlined the possible onset of hypothyroidism. A number of studies have been carried out over short periods in subjects with multiple tropin deficie...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:Primary hyperparathyroidism is a not uncommon disease in the elderly. A prevalence of 3% for women and 1% for men is reported in subjects aged 65 years and over. Routine serum calcium determination and parathyroid hormone radioimmuno-assay allow to make an early diagnosis in still asymptomatic subjects. In the elderly...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：
更新日期：1994-12-01 00:00:00
abstract：:Steroid hormones mediate pleiotropic cellular processes involved in metabolism, cellular proliferation, and differentiation. The ability of the cell to respond to its hormonal environment is transduced by nuclear receptors (NRs) that bind both hormone and DNA. Hence, NRs represent a link between the external hormonal ...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2002-03-01 00:00:00
abstract：:Many hormones and some neuropeptides and neurotransmitters play a key role in regulating numerous lymphoid cell functions. In particular, somatostatin (ss), substance P (sp) and vasoactive intestinal polypeptide (vip) appear to be involved in numerous regulating mechanisms of cell activities in the immune system under...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2001-09-01 00:00:00
abstract：BACKGROUND:The aim of this study was to evaluate long-term effectiveness and safety of liraglutide in real world. METHODS:A diabetes clinic in Italy systematically collected data of all patients treated with liraglutide. Generalized hierarchical linear regression models for repeated measures were applied to assess tre...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
abstract：:Breast cancer is the second most frequent type of cancer worldwide and the most commonly occurring malignancy in women, and its incidence is increasing in most developed and developing countries. There is growing evidence that lifestyle factors, in particular diet may be associated with higher Breast Cancer risk. Some...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：10.23736/S0391-1977.20.03266-6
更新日期：2020-09-24 00:00:00
abstract：:The major issue currently being faced in the management of prostate cancer is the inability to distinguish between indolent prostate tumors that will not present clinically from more aggressive and metastatic prostate cancers that will impact on men's lives. Only a small proportion of prostate cancers can be accounted...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2012-06-01 00:00:00
abstract：:We investigated the beta-pancreatic function in response to a standard oral glucose tolerance test (OGTT) and a tolbutamide test in a group of GH-deficient adult subjects and in a group of control subjects. Fasting plasma glucose levels were normal in all subjects; the insulin levels, basal (0.19 +/- 0.02 vs 0.99 +/- ...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：
更新日期：1990-04-01 00:00:00
abstract：:It is known that young female cancer survivors are at higher risk for decreased fertility and early menopause. Because the risk of these outcomes varies by age, cancer type, treatment regimen and other patient-specific characteristics, there is a need for valid tools for measuring and predicting reproductive function ...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2010-12-01 00:00:00
abstract：:Diabetes mellitus (DM) is a group of metabolic disorders of carbohydrate metabolism in which glucose is underutilized, resulting in hyperglycemia. Reproductive impairment in poorly controlled diabetes mellitus type 1 (T1DM) results from a combined effect of insulin deficiency and hyperglycemia that disrupt the functio...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：10.23736/S0391-1977.16.02477-9
更新日期：2017-09-01 00:00:00
abstract：:A number of studies have been carried out over the past year to characterise the physiological functions and possible therapeutic applications of somatostatin (sst). Somatostatin is one of the most widespread peptides in the body and it fulfils a very wide spectrum of actions in the various organs and tissues. The aim...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2001-09-01 00:00:00
abstract：:Familial non-medullary thyroid cancer (FNMTC) constitutes 3-9% of all thyroid cancers and occur in two or more first-degree relatives in the absence of predisposing environmental factors. Out of all FNMTC cases, only 5% are represented by syndromic forms (Gardner's syndrome, familial adenomatous polyposis, Cowden's sy...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：10.23736/S0391-1977.20.03338-6
更新日期：2020-10-12 00:00:00
abstract：:The World population is facing a health challenge never seen since the Spanish influenza of one hundred years ago. During the last months, the scientific community has been debating on the potential harmful effect of Angiotensin-converting-enzyme inhibitors (ACEi) or Angiotensin II receptor Type 1 receptor blockers (A...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：10.23736/S0391-1977.20.03402-1
更新日期：2021-01-12 00:00:00
abstract：BACKGROUND:Mild hypothyroidism (thyroid stimulating hormone [TSH] less than 10 mIU/L) induces reversible cognitive dysfunction, which can be evaluated by event related potentials (ERP). So far, only little is known about the impact of subclinical hypothyroidism on ERP as electrophysiological markers of cognitive activi...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：10.23736/S0391-1977.16.02327-0
更新日期：2017-03-01 00:00:00
abstract：:Growth hormone (GH) has been recently approved by the Italian Health Authorities for use in transition patients with childhood onset-growth hormone deficiency (CO-GHD). GH in addition to promote linear growth influences several key metabolic processes. In particular, in the transition period, from late adolescent to e...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2015-03-01 00:00:00
abstract：:Adrenal scintigraphy using 131I-6-beta-iodomethyl-19-norcholesterol or 6-methyl-75Se-methyl-19-norcholesterol is a function-dependent imaging method which, in association with high-resolution spatial imaging techniques, plays an essential role in the study of adrenocortical hyperfunction. It can distinguish between bi...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：1995-03-01 00:00:00
abstract：:Subclinical hypothyroidism - i.e., a condition characterized by serum TSH concentrations above the normal reference range in the presence of normal serum T4 levels - affects 4 to 20% of the population living in iodine-sufficient areas. The present work reviews the clinical challenges regarding, on the one hand, the si...
journal_title：Minerva endocrinologica
pub_type： 杂志文章
doi：10.23736/S0391-1977.20.03176-4
更新日期：2020-08-03 00:00:00
abstract：:Multiple endocrine neoplasia type 1 (MEN1; formerly known as Wermer syndrome) is a rare disorder characterized by the combined occurrence of two or more tumors involving parathyroid, pancreatic islets and anterior pituitary glands; some other tumors have also been described. In most cases it is inherited in an autosom...
journal_title：Minerva endocrinologica
pub_type： 杂志文章,评审
doi：
更新日期：2013-03-01 00:00:00
