Abstract:
:The role of brain catecholamine (CA) activity in the neuroendocrine regulation of the GnRH-LH system in polycystic ovary syndrome (PCO) was investigated by high-performance liquid chromatography (HPLC) with electrochemical detector. We measured urinary dopamine (DA), noradrenaline (NA), adrenaline (A), vanillylmandelic acid (VMA), homovanillic acid (HVA), 3,4-dihydroxyphenylacetic acid (DOPAC) and total 3-methoxy-4-hydroxyphenylglycol (MHPG) levels in a group of 12 women with PCO before and during peripheral dopa-decarboxylase blockade, by carbidopa. HVA and DOPAC concentrations were significantly lower (P less than 0.001 and P less than 0.005, respectively) in PCO patients compared with twelve control subjects in early follicular phase, whereas total MHPG concentrations and MHPG/VMA ratio were significantly higher (P less than 0.005) in PCO patients. Moreover, HVA and DOPAC concentrations in PCO patients were similar to those of the control subjects in preovulatory phase, while MHPG concentrations remained higher in PCO patients (P less than 0.01). DA, NA, A and VMA concentrations were similar to those of control subjects in both phases of the cycle. During carbidopa administration the concentrations of all urinary CAs and metabolites were unchanged, except those of DA which dropped markedly (P less than 0.001). These data suggest that (1) an altered central catecholamine metabolism consisting of DA deficiency and NA excess is present in PCO, and (2) the site of DA deficiency may be located in the hypothalamus.
journal_name
Clin Endocrinol (Oxf)journal_title
Clinical endocrinologyauthors
Paradisi R,Grossi G,Venturoli S,Capelli M,Porcu E,Fabbri R,Pasquali R,Flamigni Cdoi
10.1111/j.1365-2265.1988.tb01230.xsubject
Has Abstractpub_date
1988-09-01 00:00:00pages
317-26issue
3eissn
0300-0664issn
1365-2265journal_volume
29pub_type
杂志文章abstract::A 16-year-old female patient with an adrenal tumour was studied. Clinically she had progressive hirsutism, showed high urinary 17-oxosteroid excretion with normal plasma cortisol. Plasma C19-steroids, both unconjugated (including testosterone) and sulphate-conjugated, were greatly elevated. On surgical exploration an ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1978.tb02773.x
更新日期:1978-04-01 00:00:00
abstract:OBJECTIVE:This case series documents the response of nine individuals with glucocorticoid-refractory Graves' orbitopathy (GO) to B cell depletion therapy with rituximab (RTX). CONTEXT:Graves' disease (GD) is one of the commonest autoimmune conditions and is frequently associated with inflammatory changes around the ey...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12141
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVES:To report and explore potential reasons for undetectable or low-normal serum intact PTH levels in patients with surgically verified primary hyperparathyroidism with parathyroid adenomas, review the relevant literature, and offer suggestions for management of such patients occasionally encountered in clinical...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2008.03225.x
更新日期:2008-09-01 00:00:00
abstract:OBJECTIVE:The effects of thiazide medication in patients with primary hyperparathyroidism (PHPT) have so far not been elucidated. The aim of this study was to analyse the extent to which the administration of thiazides may influence biochemical parameters and therefore the diagnosis of PHPT in a large cohort of patient...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13046
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:Genotype and phenotype heterogeneity in patients with GH insensitivity syndrome suggests that partial defects exist in the GH receptor. Children with partial GH resistance would be expected to have short stature, elevated GH levels and relatively low levels of IGF-I and IGFBP-3. Provocation tests of the GH-IG...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1998.00407.x
更新日期:1998-06-01 00:00:00
abstract::Three different forms of testosterone (T) replacement therapy were compared; they were the intramuscular injection of mixed testosterone esters 250 mg; the subcutaneous implantation of 6 X 100 mg pellets of fused testosterone; and the oral administration of testosterone undecanoate (TU) 80 mg twice daily. Six hypogona...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1984.tb03448.x
更新日期:1984-08-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Women with previous gestational diabetes (pGDM) are at risk of developing Type 2 diabetes. Glucagon-like peptide-1 (GLP-1) potentiates the insulin response to oral glucose, and its secretion is diminished in Type 2 diabetes. The aim of the study was to see if decreased GLP-1 secretion might be ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2004.02172.x
更新日期:2005-01-01 00:00:00
abstract::The present study concerns eighteen chronic alcoholics with minimal liver damage. A significant reduction in total serum T4 with an accompanying drop in circulating TBG was observed in these otherwise euthyroid patients. During alcohol withdrawal, we observed a rapid increase in T4 and TBG into the normal range. We su...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1981.tb00605.x
更新日期:1981-02-01 00:00:00
abstract:OBJECTIVE:Strategies to limit the final height of tall children have centred on the use of high doses of sex steroids to advance skeletal maturation. This limits therapy to the peripubertal years whereas the greatest gain in height is in the prepubertal years. Prepubertal growth is largely GH dependent and previous wor...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2265.1995.tb02670.x
更新日期:1995-05-01 00:00:00
abstract:OBJECTIVE:To assess the effect of nutritional supplementation on growth and puberty in constitutionally delayed children. PATIENTS:One hundred and two boys, 13.6-15.5 years of age, who were referred because of short stature and delayed puberty. METHODS:The boys were randomly allocated to one of the following treatmen...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.2004.02034.x
更新日期:2004-06-01 00:00:00
abstract::A single fasting level of serum prolactin was measured in each of sixty control subjects and eighty-three psychiatric patients of both sexes who had been on neuroleptic therapy for 2-4 weeks (acute treatment) or at least 5 years (chronic treatment) and who were aged either 17-45 or 48-85 years. All groups of patients ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1976.tb01953.x
更新日期:1976-05-01 00:00:00
abstract:OBJECTIVES:Bilateral adrenalectomy may be indicated in patients with Cushing's disease in whom hypercortisolism is not resolved after pituitary microsurgery. However, Nelson's syndrome is a major long-term complication of such therapy. We have carried out a longitudinal study on patients with Cushing's disease who unde...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1993.tb01756.x
更新日期:1993-07-01 00:00:00
abstract:OBJECTIVE:The objective of the present study was to elucidate the parathyroid responsiveness by measurements of blood ionized calcium and serum intact parathyroid hormone (PTH) concentrations, before and during trisodium citrate induced hypocalcaemia. PATIENTS AND CONTROLS:Sixteen patients with primary hyperparathyroi...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1992.tb02336.x
更新日期:1992-10-01 00:00:00
abstract:BACKGROUND/OBJECTIVE:Although the physiology of minipuberty are well-established, it is not fully explained why it occurs. It has been suggested that minipuberty contributes to the development of reproductive organs, somatic growth, cognitive/behavioral, and sex-specific brain development. Given the well-known trade-of...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14384
更新日期:2020-12-05 00:00:00
abstract:OBJECTIVE:To study the effects of thyroxine on orocaecal transit time in a group of elderly hypothyroid patients on long-term thyroxine replacement therapy. DESIGN:Measurement of the effect of withdrawal and subsequent replacement of thyroxine replacement therapy on orocaecal transit time. PATIENTS:Fifteen elderly, p...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1991.tb03563.x
更新日期:1991-11-01 00:00:00
abstract:OBJECTIVE:Thyroid cancer is the most common malignant endocrine tumour, and its incidence has continuously increased worldwide over the past three decades. We focused on the association of multifocal papillary thyroid carcinoma (PTC) with messenger RNA (mRNA) expression to characterize how molecular and histopathologic...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13928
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVES:There is growing evidence for the association between bone mineral density (BMD) and vascular calcification, which is related to cardiovascular disease. Coronary multidetector row computed tomography (MDCT) is a noninvasive tool developed to evaluate coronary status precisely. We used MDCT to evaluate this a...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2009.03535.x
更新日期:2009-11-01 00:00:00
abstract:OBJECTIVE:We assessed the relationship between serum IGFBP-3 levels with IGF-I and quantitative GH secretory status in poorly growing children. DESIGN:We studied the relationship between 24-hour integrated concentration of GH, peak GH to paired sequential stimulation tests, IGF-I and the IGFBP-3 serum levels. PATIENT...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1993.tb02389.x
更新日期:1993-10-01 00:00:00
abstract:OBJECTIVE:Growth deficiency is commonly seen in polytransfused beta-thalassaemia patients, especially in adolescence. It is not completely dependent on the lack of their pubertal growth spurt. GH impairment at different levels (hypothalamic or pituitary) and/or a reduced IGF-1 synthesis have been suggested the main cau...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1997.1951005.x
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVE:Although autoantibody production is a key feature of autoimmunity, it is not known whether variation in autoantibody production and clearance pathways is involved in disease susceptibility. The Fc Gamma Receptor IIa (FcGRIIa) molecule is involved in the clearance of autoantibodies and a functional single nucl...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2010.03780.x
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVES:Papillary thyroid microcarcinoma (PTMC) has an excellent prognosis with an indolent disease course. However, some PTMCs have an aggressive course with lateral cervical lymph node (LCLN) metastasis or distant metastasis. This study aimed to evaluate the pre-operative features of PTMC associated with LCLN meta...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13322
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:To audit the efficacy of quinagolide (CV205-502, Norprolac, Sandoz) in lowering prolactin, and its tolerability, in patients with bromocriptine resistance (BCR) or bromocriptine intolerance (BCI), in view of the paucity of results published in patients specifically with BCR or BCI, by collating results in our...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2265.1994.tb02799.x
更新日期:1994-12-01 00:00:00
abstract::Plasma concentrations of FSH, LH, testosterone and prolactin have been studied in seventeen men, aged 19 to 38 years, with traumatic paraplegia. Plasma testosterone, FSH and LH values were normal in all patients. The median LH concentration in patients was significantly higher (P less than 0.05) than in controls but t...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb01594.x
更新日期:1982-09-01 00:00:00
abstract:OBJECTIVE AND DESIGN:Depot somatostatin analogues are well accepted as either adjuvant or primary therapy for acromegaly, and their long dosage intervals facilitate adherence to treatment. Our objective was to evaluate whether lanreotide Autogel 120 mg, every 4-8 weeks, was as effective in controlling acromegaly as lan...
journal_title:Clinical endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2265.2006.02595.x
更新日期:2006-09-01 00:00:00
abstract::The demonstration that the incretin hormone glucagon-like peptide 1 can improve glycaemic control in patients with type 2 diabetes has led to the rapid development during the last decade of promising new classes of agent for the management of type 2 diabetes. These agents possess a range of physiological effects that ...
journal_title:Clinical endocrinology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2265.2008.03396.x
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND:Left ventricular hypertrophy (LVH) is the most common cardiac abnormality in acromegaly. Left ventricular mass (LVM) is an important parameter measured to detect LVH, but the relationship with body size should be considered by correcting LVM to body surface area (BSA), height or height2.7. All trials concern...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2004.01985.x
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVE:Cadmium (Cd) has been shown to impair pubertal development in experimental animals. However, no data are available for male adolescents with increased urinary cadmium levels. DESIGN:The aim of this cross-sectional study was to evaluate pubertal onset and pituitary-gonadal axis hormones in male adolescents wi...
journal_title:Clinical endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1111/cen.12704
更新日期:2015-09-01 00:00:00
abstract::The effect of glucocorticoid excess on insulin disappearance from plasma was examined in eight normal men during cortisone treatment (50 mg orally twice daily for 4 d) and in the absence of any medication (control) in random order. Constant infusion of insulin (1-5 mU/kg/min) was used to achieve different levels of st...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1987.tb00818.x
更新日期:1987-05-01 00:00:00
abstract::Thirteen normal children, seven males and six females, during early puberty (I-II according to Tanner), have been studied. Each subject was injected at weekly intervals and in random order with 100 micrograms of LHRH, 0.2 mg/kg of naloxone and 0.9% saline in single bolus. The gonadotrophin response was evaluated. The ...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1984.tb00086.x
更新日期:1984-03-01 00:00:00
abstract::Hyperthyroidism is a well recognized complication of gestational trophoblastic tumours (GTT) and may be due to high circulating concentrations of human chorionic gonadotrophin (hCG) or its variants. We have studied 24 clinically euthyroid women with GTT. Eight were biochemically hyperthyroid with low or undetectable s...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1990.tb00487.x
更新日期:1990-08-01 00:00:00