Abstract:
OBJECTIVE:The DAZ (deleted in azoospermia) gene family on the Y chromosome long arm is the major candidate for the AZFc (azoospermia factor c) phenotype of male infertility and it is expressed only in germ cells. The aim of the study was to assess Sertoli cell function in subjects with AZFc deletions. DESIGN:Case-control, prospective study. METHODS:We have studied six severely oligozoospermic subjects with AZFc-DAZ deletions, and looked whether they responded in terms of inhibin B production to a 1 month FSH treatment. These patients were compared with three groups of patients affected by different spermatogenic alterations not related to deletions on the Y chromosome. RESULTS:Although affected by severe testiculopathy, patients with AZFc-DAZ deletions had only slightly elevated FSH, and normal inhibin B plasma concentrations. Inhibin B responded normally during FSH treatment, supporting the hypothesis that Sertoli cells are not altered. On the contrary, other severe testiculopathies not related to Y chromosome deletions showed high FSH and low inhibin B concentrations, with no response to FSH treatment. In these cases the cause of the spermatogenic defect probably damaged both germ and Sertoli cells. Finally, idiopathic patients with a hormonal status similar to Y-deleted patients (slightly elevated FSH and normal inhibin B concentrations) did not respond to FSH treatment, suggesting that Sertoli cells were already at their maximal functional capability. CONCLUSIONS:These data confirm that Sertoli cell function is not damaged in patients with AZFc-DAZ deletions and that the strong reduction of germ cells does not affect the FSH-inhibin B feedback loop.
journal_name
Eur J Endocrinoljournal_title
European journal of endocrinologyauthors
Foresta C,Bettella A,Moro E,Rossato M,Merico M,Garolla A,Ferlin Adoi
10.1530/eje.0.1460801subject
Has Abstractpub_date
2002-06-01 00:00:00pages
801-6issue
6eissn
0804-4643issn
1479-683Xpii
146801journal_volume
146pub_type
杂志文章abstract::In recent years, 2-[(18)F]-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (FDG-PET/CT) has emerged as an important tool for the postoperative management of patients with differentiated thyroid cancer (DTC) and it is widely used in selected clinical situations. The most valuable role that FDG...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/EJE-15-0066
更新日期:2015-09-01 00:00:00
abstract:OBJECTIVE:In the absence of widely available measures of determining free and/or bioavailable testosterone (BioT) physicians may use formulae such as the free androgen index (FAI) to estimate free testosterone. We compared the efficacy of calculated markers of androgen status in predicting serum BioT and hypogonadism. ...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1510241
更新日期:2004-08-01 00:00:00
abstract::Cinacalcet HCl, an allosteric modulator of the calcium-sensing receptor (CaR), has recently been approved for the treatment of secondary hyperparathyroidism in patients with chronic kidney disease on dialysis, due to its suppressive effect on parathyroid hormone (PTH) secretion. Although cinacalcet's effects in patien...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.02007
更新日期:2005-10-01 00:00:00
abstract::We compared two highly specific markers for bone resorption-pyridinium cross-links (pyridinoline (PYR) and deoxypyridinoline (DPR)) in urine and carboxy-terminal telopeptide of type I collagen (ICTP) in serum-in 63 healthy postmenopausal women and 63 women with osteoporosis characterized by more bone resorption than b...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1310258
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abstract::Growth hormone (GH) is used by athletes like bodybuilders to increase muscle strength and weight gain. On the other hand, chronic hypersecretion of GH in active acromegaly may result in outwardly hypertrophied but functionally weaker muscles. As a model for studying long-term effects of GH on muscle strength, we analy...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1330735
更新日期:1995-12-01 00:00:00
abstract:BACKGROUND:A substantial proportion of all pheochromocytomas is currently detected during the evaluation of an adrenal incidentaloma. Recently, it has been suggested that biochemical testing to rule out pheochromocytoma is unnecessary in case of an adrenal incidentaloma with an unenhanced attenuation value ≤10 Hounsfie...
journal_title:European journal of endocrinology
pub_type: 杂志文章,多中心研究
doi:10.1530/EJE-18-0006
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:To analyse trends in diagnostic practices of thyroid diseases and to relate them to the increase in thyroid cancer incidence in France over time. DESIGN:From 1980 to 2000, a French retrospective multicentric (three endocrinology and three nuclear medicine centres) study of thyroid diseases was conducted on 2...
journal_title:European journal of endocrinology
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更新日期:2004-02-01 00:00:00
abstract:OBJECTIVE:Cardiovascular disease (CVD) occurs frequently and may progress more rapidly in overt hypothyroidism (OVH). However, the role of mild thyroid failure as a risk factor for CVD is not clear. This study is aimed at exploring the association between subclinical hypothyroidism (SCH) and coronary artery disease (CA...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-11-0014
更新日期:2011-07-01 00:00:00
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journal_title:European journal of endocrinology
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更新日期:2015-08-01 00:00:00
abstract:Aim:To establish pancreatic alpha-cell mass in lean, non-diabetic humans over the adult lifespan, performed as a follow-up study to beta-cell mass across the adult human lifespan. Methods:We examined human pancreatic autopsy tissue from 66 lean, non-diabetic individuals aged from 30 to 102 years, grouped into deciles:...
journal_title:European journal of endocrinology
pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
abstract:OBJECTIVE:The androgen receptor (AR) gene contains a CAG repeat polymorphism coding for a polyglutamine chain, the length of which is inversely correlated with AR transcriptional activity. We explored whether this polymorphism modulates the activities of testosterone (T) related to body composition in elderly men. DES...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-06-0607
更新日期:2007-03-01 00:00:00
abstract:OBJECTIVE:Local 5'-deiodination of l-thyroxine (T(4)) to active thyroid hormone 3,3',5-tri-iodothyronine (T(3)) catalyzed by the two 5'-deiodinase enzymes (D1 and D2) regulates various T(3)-dependent functions in the anterior pituitary and has been well studied in rodents. Only limited information about deiodinase expr...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1470263
更新日期:2002-08-01 00:00:00
abstract:OBJECTIVE:FSH, via its receptor (FSHR), influences bone remodeling and osteoclast proliferation and activity. The aim of this study was to evaluate the influence of two single nucleotide polymorphisms (SNPs) of the FSHR gene on bone mineral density (BMD) and bone turnover markers (bone alkaline phosphatase and type I c...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-10-0043
更新日期:2010-07-01 00:00:00
abstract:Objective:Retrospective studies suggest that women have more active brown adipose tissue (BAT) than men, but little is known of the effect of fluctuating sex steroids across the menstrual cycle on thermogenesis in women. Design:To characterise the effects of sex and sex steroids on BAT activity we recruited healthy we...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-20-0184
更新日期:2020-09-01 00:00:00
abstract::123I-metaiodobenzylguanidine (123I-MIBG) scintigraphy scanning is commonly used in the imaging of phaeochromocytoma (and paraganglioma) to confirm the site of disease and whether any spread has occurred. However, 123I-MIBG imaging is negative in 15% of cases of benign phaeochromocytoma and around 50% of cases of malig...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-07-0369
更新日期:2007-10-01 00:00:00
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journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1530/eje.0.1320313
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:Previous studies have suggested that infections are an important cause of death in patients with Addison's disease, but epidemiological studies on the frequency of infections in this population are lacking. OBJECTIVE:To assess and compare the incidence risk of infections in patients with primary adrenal ins...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-12-0879
更新日期:2013-03-15 00:00:00
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journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-10-0718
更新日期:2010-12-01 00:00:00
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journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1440291
更新日期:2001-03-01 00:00:00
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journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.02178
更新日期:2006-07-01 00:00:00
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journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1500345
更新日期:2004-03-01 00:00:00
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journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-18-0580
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:Adult height deficit seen in Turner syndrome (TS) originates, in part, from growth retardation in utero and throughout the first 3 years of life. Earlier diagnosis enables earlier therapeutic intervention, such as with recombinant human GH (r-hGH), which may help to prevent growth retardation. In this open-la...
journal_title:European journal of endocrinology
pub_type: 杂志文章,多中心研究
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更新日期:2011-06-01 00:00:00
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journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-12-0073
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:Epidemiological studies suggest that hypopituitary patients have an increased risk for cardiovascular mortality. The dyslipidaemia associated with this condition is often characterised by an increase in total cholesterol (TC) and low-density lipoprotein (LDL) cholesterol (LDL-C) and may contribute to these f...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.1.02105
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVE:We measured the total and nonphosphorylated insulin-like growth factor-binding protein (IGFBP)-1 concentrations in obese children to determine the effect of obesity on the status of IGFBP-1 phosphorylation. We also measured the serum levels of insulin, total and free IGF-I, and IGFBP-3 to investigate their re...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1410585
更新日期:1999-12-01 00:00:00
abstract::Congenital generalized lipoatrophy (CGL) is a syndrome with multiple clinical manifestations and complete atrophy of adipose tissue. The exact mechanism of this disease remains unknown. One hypothesis presupposes an abnormal development of adipocytes. Leptin, the adipocyte-specific product of the ob gene, acts as a re...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/eje.0.1400107
更新日期:1999-01-01 00:00:00
abstract::In the last few years, molecular studies on pituitary adenomas have yielded evidence supporting a primary pituitary origin of these tumors. Although the existence of genomic alterations in tumoral cells is strongly suggested by the fact that almost all pituitary adenomas are monoclonal in origin, structural genetic ab...
journal_title:European journal of endocrinology
pub_type: 杂志文章,评审
doi:10.1530/eje.0.1300043
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Primary hyperparathyroidism (PHPT) is associated with increased cardiovascular mortality and morbidity. Little is known about hemostatic features of patients with PHPT. To our knowledge, plasma tissue factor pathway inhibitor (TFPI) and thrombin-activatable fibrinolysis inhibitor (TAFI) levels...
journal_title:European journal of endocrinology
pub_type: 杂志文章
doi:10.1530/EJE-09-0069
更新日期:2009-05-01 00:00:00
abstract::To evaluate the effects of two regimens of recombinant human GH (rhGH) on growth, bone growth and bone mineralization in GH deficient children, we studied two groups (A and B), each including 16 GH deficient children matched for sex, age, body mass index, height, height velocity and bone age/chronological age ratio (B...
journal_title:European journal of endocrinology
pub_type: 临床试验,杂志文章
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更新日期:2000-01-01 00:00:00