Abstract:
CONTEXT:Endothelial progenitor cells (EPCs) are bone marrow-derived cells required for endothelial repair. Circulating EPC concentration is low in conditions characterized by endothelial dysfunction but their number can be increased by treatment with phosphodiesterase-5 (PDE5) inhibitors. EPCs are also reduced in hypogonadal men and testosterone (T) treatment restores their concentration. OBJECTIVE:To evaluate the relationship between the effect of PDE5 inhibitors and T on EPCs, we analysed the acute effect of vardenafil on the number of EPCs in hypogonadotrophic hypogonadal (HH) patients, before and after T treatment. DESIGN AND SETTING:A case-control study at a university andrology centre. PATIENTS:Fifteen HH subjects and 25 aged-matched controls. MAIN OUTCOME MEASURES:The number of circulating EPCs and progenitor cells (PCs) in HH patients was evaluated after acute vardenafil administration at baseline and after 6 months of T supplementation. RESULTS:At baseline, HH men had significantly lower numbers of PCs and EPCs with respect to controls and vardenafil administration had no effect on the number of these cells. After 6 months of T treatment, all HH patients were eugonadal. With respect to baseline, PCs and EPCs were significantly higher and reached the levels observed in controls. Vardenafil administration in HH men at the end of T treatment induced a significant increase in PCs and EPCs in a manner similar to that in controls. CONCLUSIONS:This study showed that normal T levels are necessary to restore the responsiveness of EPCs to PDE5 inhibitors, suggesting that T positively modulates PDE5 in bone marrow.
journal_name
Clin Endocrinol (Oxf)journal_title
Clinical endocrinologyauthors
Foresta C,Di Mambro A,Caretta N,De Toni L,Zuccarello D,Ferlin Adoi
10.1111/j.1365-2265.2008.03507.xsubject
Has Abstractpub_date
2009-09-01 00:00:00pages
412-6issue
3eissn
0300-0664issn
1365-2265pii
CEN3507journal_volume
71pub_type
杂志文章abstract:OBJECTIVE:The relationship of quantitative GH secretion to height, growth velocity and puberty is complex and has been the subject of extensive study in children. This study was designed to relate quantitative GH secretion to final height. SUBJECTS:Twenty tall (> 183 cm, 90th centile for adult height) and 20 short (< ...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2265.1999.00844.x
更新日期:1999-11-01 00:00:00
abstract:OBJECTIVE:To assess possible side-effects of long-term continuous growth hormone (GH) treatment on carbohydrate (CH) metabolism in children with short stature born small for gestational age. DESIGN:In a prospective, randomised double-blind, dose-response multicentre trial, the effect of GH treatment on CH metabolism w...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2265.2001.01178.x
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVE:It is known that growth hormone can induce accelerated bone turnover in GH deficient people as well as healthy elderly people. In this study we examined the effect of recombinant human GH (rhGH) on bone mineral mass and bone turnover in the presence of the bone resorption inhibiting agent, pamidronate. Effect...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1995.tb02920.x
更新日期:1995-11-01 00:00:00
abstract::Obesity may be characterized by abnormal sex steroid secretion and reduced sex hormone binding globulin (SHBG) which in turn is related to fat distribution and insulin secretion. Recent in-vitro and in-vivo evidence suggests that insulin is the common mechanism regulating the secretion of SHBG and insulin-like growth ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1990.tb00507.x
更新日期:1990-09-01 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:OBJECTIVE:Disordered water balance causes substantial morbidity in a subset of schizophrenics and is the consequence of unexplained defects in the regulation of fluid intake and antidiuretic function. We aimed to determine whether oropharyngeal regulation of water balance is altered in these patients. DESIGN:A 2-hour ...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2265.1996.641463.x
更新日期:1996-01-01 00:00:00
abstract::The pharmacokinetics, safety and endocrine effects of an authentic human growth hormone (bio-hGH), produced by the expression of genomic hGH in a mammalian cell line, were studied in six healthy young men who were administered 0.2 U/kg/day subcutaneously for five consecutive days. Changes in sodium balance and in thyr...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1989.tb00431.x
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVE:Animal studies suggest pathological foetal programming of hypothalamic circuits regulating food intake in the setting of leptin deficiency and intrauterine growth restriction (IUGR). We aimed to compare placental leptin synthesis and leptin-binding capability in venous cord blood between IUGR newborns and neo...
journal_title:Clinical endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2265.2010.03943.x
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:Nonclassical congenital adrenal hyperplasia (NC-CAH) is caused by mutations of the CYP21A2 gene. The clinical manifestations and hormonal derangements of NC-CAH are quite variable. OBJECTIVES:(i) To define the phenotype and its relation to genotype according to gender and age and (ii) to evaluate the validi...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12543
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVE:The insulin tolerance test (ITT) is contraindicated in a proportion of patients with suspected ACTH deficiency. The aim of this study was to investigate the diagnostic accuracy of the glucagon stress test (GST) compared with the overnight metyrapone test (OMT) in patients with contraindications to ITT. DESIG...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12043
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:Women with polycystic ovary syndrome (PCOS) have an increased risk of cardiovascular disease. The contribution of lipid abnormalities to this higher risk, in particular atherogenic modifications of low density lipoprotein (LDL) such as a shift towards smaller LDL, has not been properly explored. We aimed to e...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2001.01245.x
更新日期:2001-04-01 00:00:00
abstract:OBJECTIVE:To define and discuss the changes of important risk factors and TNM staging over the last 40 years in patients operated on for differentiated thyroid carcinoma (DTC), resulting from the introduction of newer sensitive diagnostic procedures in the preoperative evaluation of thyroid nodules. PATIENTS:We review...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2011.04199.x
更新日期:2012-02-01 00:00:00
abstract::We have studied the inositol phospholipid turnover response to thyrotrophin-releasing hormone (TRH) gonadotrophin-releasing hormone (GnRH) and arginine vasopressin (AVP) in five corticotroph and six somatotroph pituitary adenomas. GnRH (100 nM) increased inositol phospholipid turnover in five of five somatotroph adeno...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1990.tb00467.x
更新日期:1990-07-01 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::The nature of the thyroid disorder presented by patients with normal T4 and T3 but blunted TSH response to TRH has not been clarified. In this study, we compared thyroid function tests in 16 such patients with those of 14 controls and 10 hyperthyroid patients. Basal total T4, free T4, total T3, iodine uptake and chole...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1986.tb03612.x
更新日期:1986-11-01 00:00:00
abstract::The catechol oestrogen 2-hydroxyoestrone has been reported to lower serum prolactin concentrations acutely in normal women and it has been proposed that it may be effective in suppressing prolactin secretion in hyperprolactinaemic patients. Five women with hyperprolactinaemia and anovulation were studied. Following a ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1981.tb00678.x
更新日期:1981-10-01 00:00:00
abstract:BACKGROUND:In patients with congenital adrenal hyperplasia (CAH) type and doses of glucocorticoids used as well as sex hormone secretion during puberty have important actions on bone mineral density (BMD) in adulthood. AIM:To evaluate BMD in adult CAH patients depending on current glucocorticoid therapy and on androge...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14149
更新日期:2020-04-01 00:00:00
abstract::Immunoreactive calcitonin was found in extracts of seven out of eight consecutive breast carcinomas and four selected lung carcinomas, but not in extracts of benign breast lesions or normal tissues. This suggests that the high plasma calcitonin levels observed in patients with a wide variety of cancers reflect ectopic...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract:OBJECTIVE:We have evaluated parameters of growth, the pubertal process and attained adult height in patients with congenital hypothyroidism (CH) of various aetiologies, diagnosed by the neonatal screening programme, and followed up longitudinally. To the best of our knowledge, no such data are available in the publishe...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1997.3181148.x
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND:22q11.2 deletion syndrome (22q11.2DS) is a relatively common yet under-recognized genetic syndrome that may present with endocrine features. We aimed to address the factors that contribute to the high prevalence of hypocalcaemia. METHODS:We investigated hypocalcaemia in a well-characterized sample of 138 ad...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12466
更新日期:2014-08-01 00:00:00
abstract::Growth hormone (GH) is widely prescribed for children with short stature across a range of growth disorders. Recombinant human (rh) insulin-like growth factor-1 (rhIGF-1) therapy is approved for severe primary IGF-I deficiency - a state of severe GH resistance. Evidence is increasing for an unacceptably high rate of p...
journal_title:Clinical endocrinology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2265.2012.04420.x
更新日期:2012-08-01 00:00:00
abstract:OBJECTIVE:Surgery of bone metastases from differentiated thyroid carcinoma seems indicated in individual patients. This study was performed (1) to analyse retrospectively patients with bone metastases from differentiated thyroid carcinoma and (2) to evaluate the impact of surgery of bone metastases on survival. PATIEN...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2002.01482.x
更新日期:2002-03-01 00:00:00
abstract:OBJECTIVE:To study the effects of long-term combined continuous oral hormone replacement therapy (HRT) on vascular function in healthy postmenopausal women. BACKGROUND:The cardiovascular effects of HRT are controversial. Improvement in vascular function is a proposed mechanism of oestrogen action but there are no long...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2265.2001.01382.x
更新日期:2001-11-01 00:00:00
abstract:OBJECTIVE:The success of a low-iodine diet (LID) is best determined by measurement of 24-h urine iodine (U-I) excretion. The aim of this study was to determine reliable estimates for 24-h U-I based on spot-urine samples and to provide cut-offs to determine the effectiveness of LID preparation. DESIGN:We prospectively ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2009.03774.x
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Peroxisomal proliferator-activated receptors (PPAR)- gamma are expressed abundantly in ACTH-secreting pituitary tumours. The PPAR-gamma activator rosiglitazone has been shown to suppress ACTH secretion in human adrenocorticotroph tumour cells in vitro, and prevent and reduce adrenocorticotroph tumour develop...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2006.02501.x
更新日期:2006-05-01 00:00:00
abstract::A wide variety of adverse effects of methimazole (MMI) have been reported. Here we report a new MMI-induced disorder, acute pancreatitis and parotitis. Three weeks after a woman started MMI treatment for Graves' disease, she developed a high fever, painful parotid swelling and dull pain in the upper abdomen with eleva...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1999.00888.x
更新日期:1999-11-01 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:OBJECTIVES:The differentiation of constitutional delayed puberty (CDP) from gonadotrophin deficiency (GD) in boys at referral poses a difficult challenge. The effectiveness of the GnRH agonist (GnRH-a) test in distinguishing between the two conditions was evaluated and compared with findings of the GnRH and hCG stimula...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2002.01520.x
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND:Papillary thyroid cancer (PTC) is a common endocrine cancer and commonly presents with lymph node (LN) metastases. The role of surgical removal of the central cervical LN compartment is poorly defined. There are no prospective randomized controlled trials addressing the relevance to the extent of the initial...
journal_title:Clinical endocrinology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/j.1365-2265.2011.04162.x
更新日期:2012-01-01 00:00:00
abstract::Hypercalcaemia, a common complication of malignancy, may result from either the lytic effect of multiple osseous metastases or the effect of tumour-derived humoral factors. Excessive secretion of parathyroid hormone-related peptide (PTHrP), a major cause of humoral hypercalcaemia of malignancy, has been incriminated a...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1997.1090921.x
更新日期:1997-03-01 00:00:00