Abstract:
:The concentrations of beta-endorphin, ACTH, insulin (IRI), glucagon (IRG), cortisol and growth hormone were determined by radioimmunoassay during oral glucose tolerance test (OGTT) performed in 13 obese patients with normal glucose tolerance and without arterial hypertension. The test was performed in random, before and after intravenous administration of 0.8 mg of naloxone. Six persons with normal body weight served as controls. Higher basal concentrations of beta-endorphin and significant increase in beta-endorphin levels during OGTT, without concomitant increase in ACTH concentrations, have been found in obese patients. No effect of naloxone on beta-endorphin liberation during OGTT was observed, though the drug caused lowering in maximal increment of beta-endorphin and paradoxically lowered the concentrations of ACTH and cortisol. The basal concentrations of beta-endorphin did not correlate with the concentrations of insulin, ACTH, cortisol and growth hormone. Elevated concentrations of insulin, lowered concentration of growth hormone and normal levels of glucose and glucagon were observed in basal conditions, and excessive responses of insulin, glucose and glucagon were observed in obese patients during OGTT. Naloxone lowered insulin response and inhibited the fall of growth hormone during OGTT but did not influence the concentrations of glucose and glucagon. No correlation was found during OGTT after naloxone between insulin and beta-endorphin, ACTH or cortisol, whereas negative correlation was observed between insulin and growth hormone. The obtained results suggest that the elevated concentrations of beta-endorphin in simple obesity may be of both hypophyseal and peripheral origin. Hyper-beta-endorphinemia observed in obesity is probably not directly responsible for hyperinsulinemia, it may, however, be responsible for lower sensitivity of tissues to the action of insulin.
journal_name
Endokrynol Poljournal_title
Endokrynologia Polskaauthors
Krzyzanowska-Swiniarska B,Gruszczyńska M,Pilarska K,Widecka K,Czekalski Ssubject
Has Abstractpub_date
1993-01-01 00:00:00pages
517-29issue
4eissn
0423-104Xissn
2299-8306journal_volume
44pub_type
杂志文章abstract:INTRODUCTION:Patients with hypogonadism are at increased risk of cardiac and metabolic diseases and osteoporosis. Vitamin D and Fibroblast growth factor-23 (FGF-23) play role in the regulation of bone mineral metabolism and endothelial functions. Low vitamin D levels are reported in hypogonadism, while there is no data...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:10.5603/EP.a2017.0009
更新日期:2017-01-01 00:00:00
abstract:INTRODUCTION:Dysregulation of adipokine secretion and action is a characteristic feature of obesity and a key clinical feature of Cushing's syndrome (CS). We have investigated whether endogenous glucocorticoid excess influences adipose tissue-derived gene expression. MATERIAL AND METHODS:mRNA expression of adipokines;...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:10.5603/EP.a2018.0091
更新日期:2019-01-01 00:00:00
abstract::Diabetic kidney disease (DKD) remains the leading cause of the end-stage renal disease (ESRD) and the most common reason for renal replacement therapy. Research has been carried out for years to find a marker that would enable early identification of people at risk of DKD occurrence, as well as people who will progres...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:10.5603/EP.a2020.0077
更新日期:2020-01-01 00:00:00
abstract::Hypoxia-inducible factors (HIFs), as a family of transcription factors involved in the cellular response to hypoxia, are key regulatory factors in the regulation mechanism of an organism's response to hypoxia. A large number of studies have shown that HIFs are closely related to the angiogenesis, erythropoiesis, cell ...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:10.5603/EP.a2020.0064
更新日期:2020-01-01 00:00:00
abstract:INTRODUCTION:Aim of the study was present personal observations connected with the management of patients referred to surgical treatment for secondary hyperparathyroidism (SHT) or tertiary hyperparathyroidism (THT), and to assess immediate results of such management. MATERIAL AND METHODS:A total of 175 patients aged 2...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2010-05-01 00:00:00
abstract::Most medical agents currently applied in osteoporosis therapy act by inhibiting bone resorption and reducing bone remodelling, i.e. they inhibit the process of bone mass loss by suppressing bone resorption processes. These drugs provide an ideal therapeutic option to prevent osteoporosis progression. They however have...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:Vitamin D receptor (VDR) is encoded by the VDR gene. Several studies have supported that this gene is associated with diabetes. Heterodimer VDR/RXR functions as an enhancer of the BGLAP gene and increases the basal transcription rate of osteocalcin (OC) during osteoblast differentiation. OC is a regulator ...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:10.5603/EP.2015.0042
更新日期:2015-01-01 00:00:00
abstract::Ig-G4 related disease (IgG4RD) is a heterogeneous disorder with multi-organ involvement recognised as a separate entity at the start of this century only. It is currently one of the hottest areas of clinical and translational research across specialties. Thyroid involvement in IgG4RD is rare, believed to occur in less...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:10.5603/EP.2016.0061
更新日期:2016-01-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to evaluate the influence of body mass changes on plasma concentrations of proinflammatory cytokines in obese women after the initially obtained weight reduction in a five-year follow-up period. MATERIAL AND METHODS:Thirty out of 42 women with simple obesity (age 41.8 ± 11.9 year...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2012-01-01 00:00:00
abstract:INTRODUCTION:The present study aims to evaluate the incidence, types, timing and risk factors in amiodarone (AMD)-induced thyroid dysfunction. MATERIAL AND METHODS:The study comprised 229 patients from an iodine-replete area (115 women, 114 men, mean age 63.8 ± 9.2 years), chronically treated with AMD. The cases were ...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2012-01-01 00:00:00
abstract:INTRODUCTION:EUS-guided ethanol ablation of insulinoma is a new method of treatment of this neuroendocrine tumour. Ablation is recommended in patients who are poor surgical candidates or refuse surgery. We present a case of an 81-year-old female with symptomatic insulinoma, treated successfully with EUS-guided alcoholi...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:10.5603/EP.2017.0053
更新日期:2017-01-01 00:00:00
abstract::Thyroid disorders are more frequently observed in diabetic patients. These conditions have been shown to be mainly of autoimmune origin and all of them may lead to hormonal imbalance. Especially strong links exist between autoimmune thyroid diseases (AITD) and type 1 diabetes. Importantly, both hypothyroidism and hype...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,实务指引
doi:
更新日期:2013-01-01 00:00:00
abstract::The present study is aimed to present the potential role of thyroid hormones (TH) in the pathogenesis of glioblastoma multiforme (GBM). In first part of this presentation the effect of general homeostasis of TH on GBM formation and course was shown. Then the evidence concerning present state of the knowledge about act...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:10.5603/EP.2015.0055
更新日期:2015-01-01 00:00:00
abstract::The authors present numerous historical descriptions of persons who might suffered from gigantism or acromegaly. The oldest medical data of patients, initial attempts of causal neurosurgical treatment, history of growth hormone, insulin-like growth factor-1, growth hormone releasing hormone and somatostatin discovery ...
journal_title:Endokrynologia Polska
pub_type: 历史文章,杂志文章
doi:
更新日期:2008-05-01 00:00:00
abstract:INTRODUCTION:Secretory products from adipocytes may contribute to deterioration in glycaemic control and increased insulin resistance (IR). Retinol-binding protein 4 (RBP-4) may increase IR in mice, with elevated levels in insulin-resistant mice and humans with obesity and type 2 diabetes. However, the mechanisms regul...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2008-07-01 00:00:00
abstract::A case of POF in a 31-year-old woman with karyotype 47,XXX. The aim of the study was to discuss a case of POF in a 31-year-old patient with polysomy 47,XXX. The described karyotype is not usually associated with this characteristic physical phenotype. In some rare cases, menstrual disorders, sterility, secondary ameno...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2010-03-01 00:00:00
abstract::Not required for Clinical Vignette. ...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:10.5603/EP.a2019.0045
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Prolactin (PRL) exists in human blood in several molecular forms. Macroprolactin (MaPRL), which most often consists of monomeric PRL and immunoglobulin G, has the highest molecular weight but no biological activity. Immunoassays do not distinguish MaPRL from monomeric PRL, what can lead to an incorrect diagn...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2011-01-01 00:00:00
abstract::A case of rare association of hyperparathyroidism with fully developed hyperthyroidism appearing in a woman 23 years old with advanced generalized cystic fibrosis has been presented. ...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to explore the association between thyroid hormones and abdominal fat quantities in euthyroid post-menopausal women. MATERIAL AND METHODS:Serum levels of thyroid stimulating hormone (TSH), free triiodothyronine (fT3), and free thyroxine (fT4) as well as body mass index (BMI) and ...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:10.5603/EP.a2020.0037
更新日期:2020-01-01 00:00:00
abstract:INTRODUCTION:Anaplastic thyroid carcinoma (ATC) is one of the most aggressive human malignancies and constitutes approximately 1.6-5% of the malignant neoplasms of the thyroid gland. ATC usually manifests itself with the local symptoms due to a rapidly enlarging thyroid mass, and as other thyroid cancers, has only seld...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:10.5603/EP.a2018.0010
更新日期:2018-01-01 00:00:00
abstract::The aim of immunohistochemistry and immunocytochemistry is to reveal specific antigens in cells and tissue samples. Those techniques are based on an antigen-antibody reaction and visualization of its product in microscopic examination. The precursor of this new diagnostic procedure was an immunofluorescent reaction in...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:
更新日期:2005-05-01 00:00:00
abstract::Acromegaly can be treated with several medical modalities. The growth hormone (GH) receptor antagonist pegvisomant, in particular, is able to reduce serum insulin-like growth factor I (IGF-I) concentrations to almost any desired level. Along with this important achievement come other practical issues. The most importa...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:
更新日期:2007-07-01 00:00:00
abstract:INTRODUCTION:Over the last decade, average life expectancy has continuously increased. There has been no data on normal sex hormone (SH) levels in a Polish elderly population. In this study, we assessed SH in the PolSenior cohort to determine normal reference ranges in relation to gender, age, and cardiovascular diseas...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2013-01-01 00:00:00
abstract::The study, supported by program MZ-XVII, was carried on 4567 inhabitants of the area of Szczecin (2350 females and 2217 males). The population was chosen randomly, according to a simple drawing scheme. All subjects were clinically examined using standardised questionnaires. In 3468 persons (including 1807 girls and wo...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:The activity of androgen receptor (AR) is modulated by a polymorphic region located within exon 1 its gene and characterizing a variable number of trinucleotide CAG repeats. The length of polymorphic region is inversely correlated with the transactivation function of AR gene. It was showed an ethnic differen...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2009-07-01 00:00:00
abstract::Growth hormone (GH) and insulin-like growth factor 1 (IGF-1) are often used by athletes as doping agents. It is estimated that up to 25% of sportsmen using anabolic-androgenic steroids also take GH. Available data do not confirm the influence of GH or IGF-1 preparations on physical performance improvement. However, th...
journal_title:Endokrynologia Polska
pub_type: 杂志文章,评审
doi:
更新日期:2009-09-01 00:00:00
abstract::The study was aimed at evaluation of usefulness of determination of blood serum 21-deoxycortisol concentration for the detection of heterozygous carriers of incomplete block of 21-hydroxylase synthesis leading to adrenal hyperplasia. An earlier observation of the authors that the determination of 21-deoxycortisol is a...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract::Acromegaly is usually caused by excess GH (growth hormone) secretion by pituitary adenoma. Extremely rare (< 1% of cases) acromegaly can be a result of ectopic GHRH (growth hormone releasing hormone) secretion by bronchial tubes, lung, pancreatic or intestinal tumor. The aim of this description is to present the case ...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
abstract:INTRODUCTION:The clinical usefulness of baroreflex sensitivity (BRS) in the early detection of autonomic dysfunction in patients with diabetes is not well established. The aim of the study was the evaluation of BRS in subjects with type 1 diabetes with and without cardiovascular autonomic neuropathy (CAN). MATERIAL AN...
journal_title:Endokrynologia Polska
pub_type: 杂志文章
doi:
更新日期:2008-09-01 00:00:00