Abstract:
:The effect of prolonged diabetes on epinephrine-induced adenosine 3',5'-monophosphate (cAMP) response in the liver was examined in diabetes-prone BB/W rats. Basal and 1 microM epinephrine-induced cAMP release from isolated perfused liver was similar in non-diabetic and diabetic BB/W rats with preserved adipose tissue. In adipose tissue-absent diabetic rats losing intra- and retro-peritoneal adipose tissue completely, both basal and 1 microM epinephrine-induced cAMP release from the liver were enhanced (P<0.01, each case). Plasma epinephrine and norepinephrine were similar in non-diabetic, adipose tissue-preserved and -absent diabetic BB/W rats. The plasma free thyroxine level was similar in non-diabetic and adipose tissue-preserved diabetic BB/W rats, but was lower in adipose tissue-absent diabetic BB/W rats than in non-diabetic rats (P<0.01), but the frequency of lymphocytic thyroiditis was similar in these three groups, although plasma corticosterone was lower in adipose tissue-preserved diabetic BB/W rats (P<0.05) and the lowest in adipose tissue-absent diabetic BB/W rats (P<0.01). Lymphocytic infiltration was not observed in the adrenal or pituitary glands in any group. Plasma total protein and albumin were low in adipose tissue-absent diabetic BB/W rats (P<0.01, each case). In adipose tissue-absent diabetic BB/W rats, liver dysfunction and hepatomegaly, but no apparent histological change in the liver, were observed. Plasma glucose was higher (P<0.01) and plasma insulin lower (P<0.05) in adipose tissue-absent diabetic BB/W rats than in adipose tissue-preserved diabetic BB/W rats. In conclusion, epinephrine-induced cAMP response in the liver was enhanced only in adipose tissue-absent diabetic BB/W rats. Denervation supersensitivity was not likely to be responsible for the enhanced beta-adrenergic response. The observed reductions in plasma thyroxine and corticosterone seemed to result from severe diabetes. Although the severity of diabetes can vary continuously, severe diabetes with loss of adipose tissue appeared to cause significant changes in the metabolism and enhanced beta-adrenergic response in the liver.
journal_name
Endocr Jjournal_title
Endocrine journalauthors
Yamatani K,Saito K,Ohnuma H,Ikezawa Y,Seino T,Manaka Y,Daimon M,Takahashi K,Sasaki Hdoi
10.1507/endocrj.44.725subject
Has Abstractpub_date
1997-10-01 00:00:00pages
725-32issue
5eissn
0918-8959issn
1348-4540journal_volume
44pub_type
杂志文章abstract::The synthesis of nitric oxide (NO) has been demonstrated in the vascular endothelial cells and other tissues including in rat and bovine adrenal gland. To determine whether NO mediates aldosterone production in the adrenals, we evaluated the basal production of aldosterone, and the ACTH or angiotensin II (A II)-stimul...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.43.157
更新日期:1996-04-01 00:00:00
abstract::To determine whether patients with medullary thyroid carcinoma (MTC) develop other endocrine neoplasms or their relatives develop MTC, we investigated the mutations in the RET proto-oncogene in patients with multiple endocrine neoplasia type 2B (MEN 2B, N = 1) and sporadic MTC (N = 6). DNA from MTC tissue and the peri...
journal_title:Endocrine journal
pub_type: 临床试验,杂志文章
doi:10.1507/endocrj.44.559
更新日期:1997-08-01 00:00:00
abstract::As a rare condition characterized by inflammation of the pituitary gland, hypophysitis usually results in hypopituitarism and pituitary enlargement. The most critical outcome of hypopituitarism is caused by secondary adrenal insufficiency. Glucocorticoid deficiency is a life-threatening condition, and patients who dev...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.EJ20-0213
更新日期:2020-11-28 00:00:00
abstract::Methylenetetrahydrofolate reductase plays an important role in folate metabolism. Individuals who are type 2 diabetes mellitus have greatest risk for the development of vascular complications. The results of studies which assessed the association between MTHFR C677T polymorphism and T2DM with vascular complications we...
journal_title:Endocrine journal
pub_type: 杂志文章,meta分析
doi:10.1507/endocrj.ej14-0071
更新日期:2014-01-01 00:00:00
abstract::We assessed the incidence of elderly patients in Japanese acromegalics and the characteristics of their clinical presentation. We also evaluated the safety and efficacy of transsphenoidal surgery (TSS) in this patient group. During the 28-year period from 1980 to 2007 we treated 290 patients with acromegaly at our hos...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.k08e-117
更新日期:2008-10-01 00:00:00
abstract::The mechanism of onset of hypoglycemia in patients with carnitine deficiency has yet to be determined. Using mice with systemic carnitine deficiency (JVS mice), we examined this mechanism, focusing on the weaning period (days 14-28 postpartum). For normal mice, the survival rate was 100%, and no hypoglycemia was obser...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.k07-044
更新日期:2007-12-01 00:00:00
abstract::Metabolic syndrome is a common disorder in Taiwan. For this study 431 subjects were randomly selected from visitors to the Department of Health Management. Blood pressure, blood glucose, lipid, uric acid levels and anthropometric measurements with immunoreactive insulin (IRI) and leptin levels were all correlated. We ...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.52.139
更新日期:2005-02-01 00:00:00
abstract::In order to investigate the immunological aspects of silent thyroiditis, T lymphocyte subsets were analyzed by two-color flow cytometry in 10 patients with silent thyroiditis in the thyrotoxic phase, 12 patients with silent thyroiditis in the recovery phase, and 11 healthy volunteers as a control. The percentages of C...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.41.663
更新日期:1994-12-01 00:00:00
abstract::Patients with growth hormone (GH) deficiency (GHD) have a clinical feature of visceral adiposity and it has been reported that these patients have an increased active cortisol (F)/inactive cortisone (E) metabolite ratio. 11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1) is an enzyme expressed in liver and adipo...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.k08e-311
更新日期:2009-01-01 00:00:00
abstract::There are two main subtypes of GH-producing pituitary adenoma: densely granulated (DG-type) and sparsely granulated (SG-type). Despite the difference in drug responsiveness between the two subtypes, their molecular mechanisms remain unknown. The aim of this study is to evaluate the differential expression of genes r...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.ej11-0177
更新日期:2012-01-01 00:00:00
abstract::A case of isolated ACTH deficiency who developed autoimmune-mediated hypothyroidism and still showed impaired water diuresis during glucocorticoid replacement therapy is reported. A 45-year-old woman was initially admitted for nausea, vomiting, and general malaise. Her serum sodium and plasma osmolality, ACTH and cort...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.47.667
更新日期:2000-12-01 00:00:00
abstract::The syndrome of inappropriate secretion of thyrotropin (SITSH) is defined as the inappropriate non-suppression of serum TSH in the presence of elevated free thyroid hormone; TSH-secreting pituitary adenomas and the syndrome of resistance to thyroid hormone are the main etiologies of SITSH. In addition, erroneous thyro...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.ej12-0089
更新日期:2012-01-01 00:00:00
abstract::The effect of luteinizing hormone releasing hormone (LHRH) on the neuronal activity of CA1 and CA3 regions of the hippocampus was studied by means of extracellular recordings in the castrated male, intact male, castrated female, and castrated female injected s.c. with 20 micrograms estradiol benzoate (EB) for 3 days. ...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.42.251
更新日期:1995-04-01 00:00:00
abstract::In hope of understanding possible roles of estrogen during early embryogenesis, we examined the expression of both estrogen receptor alpha (ER alpha) and ER beta, a recently cloned novel subtype, in mouse oocytes and preimplantation embryos by means of reverse transcription polymerase chain reaction (RT-PCR). To inves...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.46.153
更新日期:1999-02-01 00:00:00
abstract::Age is an important prognostic factor in papillary thyroid carcinoma (PTC). In this study, we investigated the difference in prognosis of 7 subsets of PTC patients without distant metastasis at presentation or a history of radiation exposure (20 years or younger, 21-30 years, 31-40 years, 41-50 years, 51-60 years, 61...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.ej12-0044
更新日期:2012-01-01 00:00:00
abstract::Ovarian 20alpha-hydroxysteroid dehydrogenase (20alpha-HSD), which converts progesterone to a derivative devoid of biological activity, plays a crucial role in achieving the short estrous cycle in rats. Although 20alpha-HSD activity has also been demonstrated in the thymus, its molecular nature, function, and regulatio...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.48.557
更新日期:2001-10-01 00:00:00
abstract::Carcinoma showing thymic-like differentiation (CASTLE) is a rare tumour of the thyroid, which arises from ectopic thymic tissue or remnants of branchial pouches. A systematic review of English literature evidences less than thirty cases; from them, it clearly appears that CASTLE is considered an indolent slow-growing ...
journal_title:Endocrine journal
pub_type: 杂志文章,评审
doi:10.1507/endocrj.k07e-147
更新日期:2008-08-01 00:00:00
abstract::A 77-year-old man was diagnosed as having hypothyroidism. An electrocardiogram obtained at the time of the first examination revealed Brugada electrocardiographic waveforms in leads V1 to V3. When pilsicainide hydrochloride loading changed the waveforms of the electrocardiographic ST segment, this result suggested an ...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.k07e-024
更新日期:2008-07-01 00:00:00
abstract::Thyroid dysfunction has been known to be closely associated with increased vascular events. The aims of the present study included determining the prevalence of subclinical thyroid disease and relationships between normal ranges of thyroid function and internal carotid artery steno-occlusion (ICS) in patients with isc...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.k10e-135
更新日期:2010-01-01 00:00:00
abstract:PURPOSE:Surgical removal of growth hormone-producing pituitary adenomas (GHomas) becomes difficult when they invade the cavernous sinus (CS). We investigated the relation among tumor proliferative potential, tumor volume and invasion of GHomas to CS. MATERIALS & METHODS:15 patients with GHoma aged 20-59 years were enr...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.47.supplmarch_s77
更新日期:2000-03-01 00:00:00
abstract::The onset of physical signs in infants with hypophosphatemic vitamin D resistant rickets (HDRR) has generally been considered to be at the age of 12 months, but the time of appearance of hypophosphatemia and rachitic signs on radiographs remains unclear. We report a prospective study in three neonates whose mothers we...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.43.339
更新日期:1996-06-01 00:00:00
abstract::It has been indicated that some subsets of clinically nonfunctioning pituitary adenoma exhibit immunohistochemical and ultrastructural features of somatotroph or corticotroph cells, which are described as silent somatotroph and corticotroph adenomas, respectively. We here describe a 70-year-old woman with nonfunctioni...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.44.329
更新日期:1997-04-01 00:00:00
abstract::Administration of monosodium L-glutamate (MSG) to neonatal mice produces a hypothalamic syndrome consisting of stunted growth and later development of obesity. We assayed plasma insulin (IRI), thyroxine (T4) and insulin-like growth factor-I (IGF-I) to investigate their roles in the growth of the mice. Two mg/g body we...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.40.461
更新日期:1993-08-01 00:00:00
abstract::Decreased circulating levels of adiponectin, a novel adipose-derived adipocytokine, in obesity possibly contribute to the development of insulin resistance which is a major factor in the pathogenesis of type 2 diabetes. The present study was conducted to examine whether circulating and adipose tissue adiponectin level...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.52.427
更新日期:2005-08-01 00:00:00
abstract::The antidiabetic effects of Lactobacillus casei (LC) on a non-insulin-dependent diabetes mellitus (NIDDM) model, KK-Ay mice, were investigated. The oral administration of LC to male 4-week-old KK-Ay mice, or raising the mice on a 0.05% LC-containing diet significantly decreased the plasma glucose at 8 to 10 weeks of a...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.44.357
更新日期:1997-06-01 00:00:00
abstract::Breast cancer in young women younger than 35 years old is rare, aggressive and associated with a poor prognosis. Endocrine therapy is a preferred treatment modality in hormone receptor-positive early stage and advanced breast cancer, combined therapy of goserelin and letrozole presents an option for premenopausal wome...
journal_title:Endocrine journal
pub_type: 临床试验,杂志文章
doi:10.1507/endocrj.ej12-0434
更新日期:2013-01-01 00:00:00
abstract::Although subacute thyroiditis (de Quervain's thyroiditis) is presumed to be caused by a viral infection, only 2 familial occurrences of subacute thyroiditis have been reported in the literature. Typical and severe subacute thyroiditis was diagnosed in an older sister who was hospitalized for 8 days. During this period...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.49.207
更新日期:2002-04-01 00:00:00
abstract::In order to compare the bone aging process in Werner's syndrome, a disease characterized by premature aging, and that in natural aging, we have assessed the bone status in a total of 19 cases (11 males and eight postmenopausal females) with Werner's syndrome. The spinal deformity index was determined for a total of 87...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.45.505
更新日期:1998-08-01 00:00:00
abstract::Adrenocortical carcinoma (ACC) is a rare aggressive tumor originating from adrenocortical parenchymal cells and its incidence is approximately 1 per million population per year. An oncocytic ACC is a recently identified entity among the several known histopathological variants of ACC, which is characterized by oncocyt...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.EJ20-0024
更新日期:2020-08-28 00:00:00
abstract::The present study was aimed to examine the possible functional relationship between melatonin and hypothalamic transmitters, endogenous opioids and excitatory amino acids in controlling gonadotropin secretion in ovariectomized estrogen-primed rats. An intravenous injection of naloxone (mu opioid receptor antagonist), ...
journal_title:Endocrine journal
pub_type: 杂志文章
doi:10.1507/endocrj.46.831
更新日期:1999-12-01 00:00:00