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::Post-prandial plasma gastrointestinal hormone profiles were measured in nine chronic alcoholics, one and fourteen days after complete alcohol withdrawal. Basal plasma pancreatic polypeptide concentration (PP--mean +/- SE mean) was significantly greater in alcoholics (control, 28 +/- 5 pmol/l; alcoholics, post-withdraw...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1983.tb00587.x
更新日期:1983-04-01 00:00:00
abstract:OBJECTIVE:Although abnormalities of the humoral immune system, such as increased immunoglobulin production, are known in sarcoidosis, the relationship between sarcoidosis and autoimmune disorders in uncertain. We studied the incidence of thyroid autoantibodies and the prevalence of Hashimoto's thyroiditis in patients w...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1997.1630976.x
更新日期:1997-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Growth hormone treatment in children with idiopathic short stature (ISS) leads to growth acceleration in the first years, but the effect on final height is still poorly documented. We therefore studied the long-term effect of GH therapy in children with idiopathic short stature. DESIGN:We have...
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.tb02644.x
更新日期:1995-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Peripheral aromatization of testosterone and androstenedione is the principal source for circulating oestrogens in men and in castrated and post-menopausal women. Since human bone is a target organ for androgens and oestrogens, aromatase activity was assessed in human spongiosa obtained from pa...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1995.tb01890.x
更新日期:1995-07-01 00:00:00
abstract:CONTEXT:Hypoparathyroidism is characterized by hypocalcaemia, hyperphosphataemia, and low or inappropriately normal parathyroid hormone (PTH) levels. Idiopathic or genetic drivers are the predominant causes of hypoparathyroidism in paediatric-age patients. OBJECTIVE:This study investigated the aetiology and clinical c...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12944
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:Three independent genome-wide association studies in white populations have reported that single nucleotide polymorphisms (SNPs) in the KIAA0350 gene are associated with susceptibility to type 1 diabetes (T1D). The gene product of KIAA0350 is predicted to be a sugar binding C-type lectin. In the present study...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2008.03437.x
更新日期:2009-07-01 00:00:00
abstract::Six girls and one boy with precocious puberty were treated with a superactive LHRH analogue (D-TRP6-LHRH) for periods ranging from 1 year to 2 years and 3 months. In the first phase of the treatment it was administered in combination with cyproterone acetate (CyA) to counteract an early stimulatory effect until inhibi...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1984.tb03433.x
更新日期:1984-04-01 00:00:00
abstract:BACKGROUND:Type 1 diabetes mellitus (T1DM) is associated with skeletal fragility. While previous meta-analyses have demonstrated an increased risk of fracture in individuals with T1DM, little is known about fracture risk in T1DM, in the absence of age-related confounders. AIMS:To determine the risk of fracture in youn...
journal_title:Clinical endocrinology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/cen.13761
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE:Traumatic brain injury (TBI) has been associated with hypopituitarism and GH deficiency. However, TBI-mediated hypopituitarism may be more frequent than previously thought. The present work, performed in patients with severe TBI at least 1 year before, had three aims: (i) to evaluate the prevalence of hypopit...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2005.02250.x
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVES:There is no licensed, dose-appropriate formulation of hydrocortisone for children with adrenal insufficiency (AI) and patients rely on compounded adult medication. The aim of this study was to evaluate the absorption, palatability and safety of Infacort® , an immediate-release, granule formulation of hydroco...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13447
更新日期:2018-01-01 00:00:00
abstract:OBJECTIVE:Because there is discordance between different immunoassay values for serum hGH, and because clinical state may not correlate with immunoreactive hGH, we have developed an assay to accurately measure serum hGH somatogenic bioactivity. The results of this assay were compared with the Elegance two-site ELISA as...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2002.01507.x
更新日期:2002-04-01 00:00:00
abstract:OBJECTIVE:To determine serum concentrations, intra-individual variability and impact of age-related co-morbidities on serum testosterone (T), dihydrotestosterone (DHT), estradiol (E(2)) and estrone (E(1)) in older men. DESIGN:Observational, repeated measures study. PARTICIPANTS:Men (n = 325) with 40 years and older s...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2012.04432.x
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVE:Calcium absorption is an important determinant of calcium retention and bone metabolism. However, most methods of measuring calcium absorption, including the well-established dual stable isotope method, are costly and cumbersome to implement. We evaluated whether an oral calcium tolerance test (OCTT), which i...
journal_title:Clinical endocrinology
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2265.2009.03576.x
更新日期:2010-01-01 00:00:00
abstract::Cushing's syndrome in pregnancy is rare but associated with a high fetal loss rate, premature labour and excessive maternal morbidity. There has been controversy regarding the safety and efficacy of surgical treatment during pregnancy. We describe two further cases, both due to adrenal adenomas, in whom the diagnosis ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1987.tb01148.x
更新日期:1987-08-01 00:00:00
abstract:BACKGROUND:Polycystic ovary syndrome (PCOS) is the most common endocrinopathy in women of reproductive age. Some evidence suggests that dysbiosis of the gut microbiota could be associated with PCOS clinical parameters, but little is known for the association between vaginal microbiome and PCOS. OBJECTIVE:To determine ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14198
更新日期:2020-07-01 00:00:00
abstract::The effect of chlorpromazine (CPZ) on prolactin (PRL) secretion was studied in fourteen sexually immature males; nine with idiopathic hypogonadotrophic hypogonadism and five who proved to be normal early pubertal boys. Initially, clinical features and basal levels of testosterone, LH and FSH in serum collected in the ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb00723.x
更新日期:1982-04-01 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::The urine clearance of TRH after intravenous injection in man has been measured by radioimmunoassay. Between 4.4 percent and 10.7 percent of the dose was excreted within 90 min, the majority within 30 min. The TRH excreted was immunochemically and chromatographically indistinguishable from synthetic TRH and was inacti...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1975.tb01549.x
更新日期:1975-07-01 00:00:00
abstract:OBJECTIVE:Nonuniformity in suppression of spermatogenesis induced by various hormones or hormone combinations has impeded the development of an effective hormonal male contraceptive. The basis for this heterogeneity in response remained unresolved to date; however, the presence of ethnic differences points to an involv...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2002.01652.x
更新日期:2002-11-01 00:00:00
abstract:RATIONALE:In vitro fertilization (IVF) is a common treatment for infertility. In mice, IVF is associated with development of glucose intolerance. However, human data are limited regarding the metabolic, endocrine and inflammatory effects of IVF therapy in IVF-conceived pregnancies. OBJECTIVE:To explore effects of IVF ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.14270
更新日期:2020-12-01 00:00:00
abstract:CONTEXT:Childbearing is considered to be a significant risk factor for developing overweight and obesity. Physical activity might influence weight change via hormonal changes. OBJECTIVE:To test the hypothesis that higher levels of moderate-to-vigorous intensity physical activity (MVPA) are positively associated with m...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12593
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:Malignant phaeochromocytomas are rare and highly aggressive tumours. This retrospective study evaluated the outcome of combined chemotherapy with cyclophosphamide, vincristine and dacarbazine (also known as CVD regimen). METHODS:Patients with histologically and radiologically confirmed malignant phaeochromoc...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12590
更新日期:2015-01-01 00:00:00
abstract::A 25-year-old primigravid woman presented with Cushing's syndrome at 23 weeks gestation; serum cortisol was 1090 nmol/l at 0900 h, 1230 nmol/l at 2200 h; basal urinary free cortisol excretion was 3680 nmol/24 h, and 8830 nmol/24 h after dexamethasone 8 mg daily for 48 hours; plasma ACTH was < 1.1 pmol/l. CT scan of th...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1993.tb02380.x
更新日期:1993-09-01 00:00:00
abstract::The response of plasma immunoreactive met-enkephalin (IR-met-enkephalin) to ethanol (8 g by mouth) after chlorpropamide (250 mg daily for 14 d) was studied in three groups of non-insulin dependent diabetics (a) six diabetics who showed chlorpropamide alcohol flush (CPAF) and in whom the reaction could be blocked by in...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1984.tb01386.x
更新日期:1984-11-01 00:00:00
abstract:CONTEXT:In men, obesity and the metabolic syndrome are accompanied by decreased testosterone levels, but little is known about the associations between visceral adipose tissue (VAT), VAT-related inflammation and sex steroids. OBJECTIVE:To examine the relative impact of VAT, abdominal subcutaneous adipose tissue (SAT) ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2012.04401.x
更新日期:2013-03-01 00:00:00
abstract:OBJECTIVES:The aim of this study was to examine (1) the diurnal variation in SHBG and (2) the inter-relationships of insulin, IGF-I, SHBG and IGFBP-1 over 24 hours in 10 women with anovulatory PCOS and compare them with weight-matched ovulatory controls. PATIENTS AND METHODS:The two groups comprised 10 anovulatory wom...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1995.tb01910.x
更新日期:1995-08-01 00:00:00
abstract:OBJECTIVE:The purpose of this investigation was to evaluate the effectiveness of short-term administration of recombinant biosynthetic IGF-I on patients with an hereditary inability to generate this hormone. DESIGN AND PATIENTS:Ten patients with Laron type dwarfism (LTD) (4 males, six females) aged 3 1/2 to 37 3/4 yea...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2265.1991.tb03513.x
更新日期:1991-08-01 00:00:00
abstract:OBJECTIVES:A population-based study was undertaken to determine the mortality and morbidity for people with hypoparathyroidism compared to the general population. METHODS:In this study, patients identified with chronic hypoparathyroidism using data linkage from regional datasets were compared with five age- and gender...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13895
更新日期:2019-02-01 00:00:00
abstract::Sera from patients with Graves' disease and Hashimoto's thyroiditis were reacted with normal T lymphocyte preparations in an attempt to detect binding of immunoglobulin G (IgG) to T cells. Sera from normal subjects and patients with toxic adenomas served as controls. Each serum was reacted with at least three differen...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1983.tb00739.x
更新日期:1983-07-01 00:00:00
abstract:OBJECTIVES:The role of androgen decline in the sexual activity of adult males is controversial. To clarify whether sexual function would benefit from testosterone (T) treatment in men with partially or severely reduced serum T levels, we conducted a systematic review and meta-analysis of placebo-controlled studies publ...
journal_title:Clinical endocrinology
pub_type: 杂志文章,meta分析,评审
doi:10.1111/j.1365-2265.2005.02350.x
更新日期:2005-10-01 00:00:00