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 published in the past 30 years. The aim of this study was to assess and compare the effects of T on the different domains of sexual life. DATA SOURCE:A comprehensive search of all published randomized clinical trials was performed in MEDLINE, the Cochrane Library, EMBASE and Current Contents databases. REVIEW METHODS:Guided by prespecified criteria, software-assisted data abstraction and quality assessed by two independent reviewers, a total of 17 randomized placebo-controlled trials were found to be eligible. For each domain of sexual function we calculated the standardized mean difference relative to T and reported the results of pooled estimates of T treatment using the random effect model of meta-analysis. Heterogeneity, reproducibility and consistency of the findings across studies were explored using sensitivity and meta-regression analysis. RESULTS:Overall, 656 subjects were evaluated: 284 were randomized to T, 284 to placebo (P) and 88 treated in cross-over. The median study length was 3 months (range 1-36 months). Our meta-analysis showed that in men with an average T level at baseline below 12 nmol/l, T treatment moderately improved the number of nocturnal erections, sexual thoughts and motivation, number of successful intercourses, scores of erectile function and overall sexual satisfaction, whereas T had no effect on erectile function in eugonadal men compared to placebo. Heterogeneity was explored by grouping studies according to the characteristics of the study population. A cut-off value of 10 nmol/l for the mean T of the study population failed to predict the effect of treatment, whereas the presence of risk factors for vasculogenic erectile dysfunction (ED), comorbidities and shorter evaluation periods were associated with greater treatment effects in the studies performed in hypogonadal, but not in eugonadal, men. Meta-regression analysis showed that the effects of T on erectile function, but not libido, were inversely related to the mean baseline T concentration. The meta-analysis of available studies indicates that T treatment might be useful for improving vasculogenic ED in selected subjects with low or low-normal T levels. The evidence for a beneficial effect of T treatment on erectile function should be tempered with the caveats that the effect tends to decline over time, is progressively smaller with increasing baseline T levels, and long-term safety data are not available. The present meta-analysis highlights the need, and pitfalls, for large-scale, long-term, randomized controlled trials to formally investigate the efficacy of T replacement in symptomatic middle-aged and elderly men with reduced T levels and ED.
journal_name
Clin Endocrinol (Oxf)journal_title
Clinical endocrinologyauthors
Isidori AM,Giannetta E,Gianfrilli D,Greco EA,Bonifacio V,Aversa A,Isidori A,Fabbri A,Lenzi Adoi
10.1111/j.1365-2265.2005.02350.xkeywords:
subject
Has Abstractpub_date
2005-10-01 00:00:00pages
381-94issue
4eissn
0300-0664issn
1365-2265pii
CEN2350journal_volume
63pub_type
杂志文章,meta分析,评审abstract::To quantify the role of endogenous oestrogen activity in osteoporosis we measured relative metacarpal cortical area (RCA), body mass, serum oestrone, oestradiol, androstenedione, and sex hormone binding globulin (SHBG) in 746 postmenopausal women aged 53 to 76 years, sampled from the general population. The occurrence...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1989.tb01274.x
更新日期:1989-10-01 00:00:00
abstract::Uncorrected thyroid dysfunction in pregnancy has well-recognized deleterious effects on foetal and maternal health. The early gestation period is one of the critical foetal vulnerability during which maternal thyroid dysfunction may have lasting repercussions. Accordingly, a pragmatic preconception strategy is key for...
journal_title:Clinical endocrinology
pub_type: 杂志文章,评审
doi:10.1111/cen.13731
更新日期:2018-09-01 00:00:00
abstract::In-vitro data of pituitary adenoma cells from 28 acromegalic patients were evaluated. In addition to GH, PRL was produced by 16 adenomas (57%) and alpha-subunit by 15 adenomas (54%) while there was a significantly higher incidence of tumours producing PRL and alpha-subunit simultaneously. From 26 pituitary adenomas en...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1989.tb00264.x
更新日期:1989-06-01 00:00:00
abstract::Specific, homologous human neurophysin I and II radioimmunoassays were established and used to measure the individual, immunoreactive neurophysin concentrations in human plasma. Circulating levels of human neurophysin I in normal individuals were less than 1 ng/ml and neurophysin II levels were 1-2 ng/ml. During dehyd...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1979.tb02079.x
更新日期:1979-03-01 00:00:00
abstract::The uterine cross-sectional area (UXA) of women with polycystic (PCO) or multifollicular ovaries (MFO) is significantly larger and smaller, respectively, than those of normal women during the early-mid-follicular phase of the menstrual cycle. In the present study the distribution of oestradiol in plasma from normal wo...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1987.tb00813.x
更新日期:1987-05-01 00:00:00
abstract:CONTEXT:Unlike pituitary macroadenomas, microadenomas (micros) are not commonly associated with hypopituitarism. In clinical practice, we have observed that patients with ACTH-secreting micros have a higher than expected prevalence of central hypothyroidism (HT), and we speculated that this effect might be because of g...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2012.04442.x
更新日期:2012-12-01 00:00:00
abstract:CONTEXT:Anaerobic capacity is impaired in adults with GH deficiency (GHD), adversely affecting physical function and quality of life (QoL). OBJECTIVE:To investigate whether GH replacement improves anaerobic capacity, physical function and QoL in adults with GHD. DESIGN:One-month double-blind placebo-controlled crosso...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13147
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVE:Heterozygous inactivating mutations of the calcium-sensing receptor (CaR) gene cause familial hypocalciuric hypercalcaemia (FHH), a generally benign disorder characterized by mild to moderate PTH-dependent hypercalcaemia. We aimed to identify the causative CaR mutations in three families with FHH and examine ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2006.02512.x
更新日期:2006-05-01 00:00:00
abstract:OBJECTIVE:To explore differences in irisin concentrations between lean adolescents with PCOS and age- and body mass index (BMI)-matched controls and examine the associations of irisin with core features of the syndrome. DESIGN:Cross-sectional study. PATIENTS:Lean females with PCOS, aged 13-21 years. MEASUREMENTS:Phy...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13555
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVE:We investigated the content and compared the molecular forms of parathyroid hormone-related protein in tumour tissue, plasma and pleural fluid. DESIGN:Measurement of parathyroid hormone-related protein in tumour extracts and biological fluids and comparison of the elution profiles of parathyroid hormone-rela...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1993.tb01008.x
更新日期:1993-03-01 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:Whether or not the distribution of biologically active fragments in TSAb-IgG molecules parallels antigen-binding activity in other anti-thyroidal antibodies was examined. DESIGN:Both the thyroid stimulating (TS) activity (cAMP production in thyroid cells) and TSH binding inhibition (TBI) activity (determined...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.1997.1110923.x
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVE:To assess the relationship between circulating leptin levels, bone mineral content and density in the elderly. DESIGN:A cross-sectional study. PATIENTS:A cohort of 92 men and 171 women, with ages ranging from 68 to 75 years, selected as a healthy and normal functioning group, in the city centre of Verona. ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1046/j.1365-2265.2003.01808.x
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVES:An inverse relationship has been shown between body mass index (BMI) and the peak growth hormone (GH) response to stimulation in adults and in children with short stature. This relation is observed even within a normal range of BMI. The aim of this study was to investigate the effect of BMI on the GH respons...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2011.03988.x
更新日期:2011-06-01 00:00:00
abstract::Serum thyroxine was consistently unmeasurable by radioimmunoassay in an elderly patient with myxoedema after successful treatment with oral thyroxine. Abnormal binding of thyroxine was suspected and shown to be due to the presence in serum of antibodies of the IgG variety. The characteristics of these antibodies with ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1981.tb02741.x
更新日期:1981-07-01 00:00:00
abstract:OBJECTIVE:Growth hormone deficiency (GHD) in adults has been associated with impaired health status and quality of life (QoL) in several studies using generic measures, and in a few studies using recently developed disease-specific measures. Theoretically, disease-specific measures may be more sensitive and succinct th...
journal_title:Clinical endocrinology
pub_type: 评论,杂志文章
doi:10.1046/j.1365-2265.2000.00899.x
更新日期:2000-02-01 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::In nine patients with thyrotoxicosis (three patients with ophthalmopathy, one patient with T3 thyrotoxicosis) we followed plasma levels of triiodothyronine (T3) and thyroxine (T4) and the TRH induced TSH release before and under treatment with propythiouracil (PTU), carbimazole or methimazol. The patients were observe...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1975.tb01523.x
更新日期:1975-03-01 00:00:00
abstract:BACKGROUND/OBJECTIVES:Acylation-stimulating protein (ASP) is an adipose tissue-derived hormone, which stimulates glucose and free fatty acid (FFA) uptake into adipocytes. Changes in ASP metabolism are associated with alterations in lipid metabolism. As postnatal catch-up growth has been associated with dyslipidaemia in...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2010.03771.x
更新日期:2010-06-01 00:00:00
abstract::A young man is reported with an autoimmune polyglandular syndrome (APS) characterized by Addison's disease, primary hypothyroidism, primary hypogonadism, vitiligo, associated with primary empty sella and partial impairment of pituitary hormone secretion. Two years later the patient showed a null cell type acute lympho...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1987.tb01183.x
更新日期:1987-11-01 00:00:00
abstract:OBJECTIVE:The aim was to determine the target range into which mean daily serum cortisol should be lowered in patients on medical therapy for Cushing's syndrome, using isotopically estimated cortisol production rates as 'gold standard'. DESIGN:Patients with Cushing's syndrome on medical treatment were given 12 ng of t...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1993.tb02391.x
更新日期:1993-10-01 00:00:00
abstract::A late rise in serum GH occurs 3-5 h following oral glucose in man. In order to investigate the mechanisms through which this occurs we have studied the late GH rise after oral glucose during administration of a supramaximal dose of GHRH. In eight normal subjects, oral glucose (100 g) greatly enhanced the GH responses...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1990.tb00895.x
更新日期:1990-05-01 00:00:00
abstract::Two cases of Cushing's syndrome are reported in which apparently autonomous adrenal adenomata were associated with the presence of pituitary tumours. In one case the patient was apparently cured by unilateral adrenalectomy, although she was noted to have radiological evidence of an intrasellar tumour; serum cortisol w...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1995.tb00546.x
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:Phaeochromocytomas (PHEO) and functional paragangliomas (PGLs) are catecholamine-secreting neuroendocrine tumours. Although most PHEO/PGLs are benign, 10-35% present as (or develop into) malignant tumours with a poor prognosis. Overexpression of ERBB2 (v-erb-b2 erythroblastic leukaemia viral oncogene homologu...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2012.04388.x
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:Adrenal crises are potentially life-threatening complications in patients with adrenal insufficiency (AI). Our objective was to investigate the frequency of adrenal crises in different forms of AI. DESIGN/PATIENTS:The Statutory Health Insurance (SHI) database of the Techniker Krankenkasse - covering more tha...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.13043
更新日期:2016-09-01 00:00:00
abstract::Plasma aldosterone (PA), plasma renin activity (PRA), extracellular fluid volume (EFV) and hepatic blood flow were measured in forty-four patients with sustained essential hypertension and compared with forty-two normotensive controls of same age and sex. All patient had inulin clearances within the normal range and b...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1982.tb03150.x
更新日期:1982-01-01 00:00:00
abstract:OBJECTIVE:Mutations in SLC16A2, the gene encoding the thyroid hormone (TH)-specific transporter monocarboxylate transporter 8 (MCT8), result in a thyroid phenotype and severe mental retardation caused by neuronal TH deficiency. These mutational effects raise the question of whether polymorphic variation in SLC16A2 may ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.2008.03377.x
更新日期:2009-04-01 00:00:00
abstract::A controlled therapeutic trial on seventy-four 70-year-old women was carried out with the purpose of finding the optimal treatment for post menopausal osteoporosis. The bone mineral content (BMC) was measured by I-photonabsorptiometry at two sites in the distal part of the forearms, where the trabecular/cortical ratio...
journal_title:Clinical endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2265.1982.tb02769.x
更新日期:1982-05-01 00:00:00
abstract:OBJECTIVE:Serum thyroglobulin (Tg) is a marker of residual differentiated thyroid cancer (DTC) after total thyroidectomy; however, circulating antithyroglobulin antibodies (TgAb) may interfere with the immunoassay for Tg. Ultrasensitive assays may have a more significant role in detecting circulating Tg in the context ...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/cen.12736
更新日期:2016-02-01 00:00:00
abstract::Two patients with profound hypocalcaemia due to uraemia and hypoparathyroidism respectively presented with alterations of mental state as their dominant symptom. 1-Alpha-hydroxycholecalciferol (1-alpha-OHD3) was chosen as the principal therapy because of its potency and rapid action. In both patients the plasma calciu...
journal_title:Clinical endocrinology
pub_type: 杂志文章
doi:10.1111/j.1365-2265.1976.tb01983.x
更新日期:1976-09-01 00:00:00