Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 42
Filtrar
Mais filtros

Bases de dados
País/Região como assunto
Tipo de documento
País de afiliação
Intervalo de ano de publicação
1.
J Endocrinol Invest ; 2024 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-38643322

RESUMO

PURPOSE: Sex steroids play a key role on male bone homeostasis and body composition (BC), their role in men living with HIV (MLWH) is less recognized. This study aimed at investigating the prevalence of low BMD, sarcopenia, and sarcopenic obesity (SO) and their relationship with sex steroids in MLWH aged < 50. METHODS: Prospective, cross-sectional, observational study on MLWH younger than 50 (median age 47.0 years). BC and BMD were evaluated with DXA. Two different definitions of sarcopenia were applied: appendicular lean mass/height2 (ALMI) < 7.26 kg/m2 or appendicular lean mass/body weight (ALM/W) < 28.27%. Low BMD was defined for Z-score < -2.0. Sarcopenia coupled with obesity identified SO. Serum total testosterone (T) and estradiol (E2) were measured by LC-MS/MS; free testosterone (cFT) was calculated by Vermeulen equation. RESULTS: Sarcopenia was detected in 107 (34.9%) and 44 (14.3%) out of 307 MLWH according to ALMI and ALM/W, respectively. The prevalence of SO was similar by using both ALMI (11.4%) and ALM/W (12.4%). Sarcopenic and SO MLWH had lower total T and cFT in both the definition for sarcopenia. BMD was reduced in 43/307 (14.0%). Serum E2 < 18 pg/mL was an independent contributing factor for sarcopenia, SO, and low BMD. CONCLUSIONS: T and E2 are important determinants of BC even in MLWH. This is among the first studies investigating the distribution of obesity phenotypes and the prevalence of SO among MLWH showing that SO is present in 11-12% of enrolled MLWH regardless of the definition used. However, deep differences emerged using two different diagnostic definitions.

2.
J Endocrinol Invest ; 47(6): 1457-1465, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38214852

RESUMO

OBJECTIVE: This study aimed to assess the long-term outcome of patients with acromegaly. DESIGN: This is a multicenter, retrospective, observational study which extends the mean observation period of a previously reported cohort of Italian patients with acromegaly to 15 years of follow-up. METHODS: Only patients from the centers that provided information on the life status of at least 95% of their original cohorts were included. Life status information was collected either from clinical records or from the municipal registry offices. Standardized mortality ratios (SMRs) were computed comparing data with those of the general Italian population. RESULTS: A total of 811 patients were included. There were 153 deaths, with 90 expected and an SMR of 1.7 (95% CI 1.4-2.0, p < 0.001). Death occurred after a median of 15 (women) or 16 (men) years from the diagnosis, without gender differences. Mortality remained elevated in the patients with control of disease (SMR 1.3, 95% CI 1.1-1.6). In the multivariable analysis, only older age and high IGF1 concentrations at last available follow-up visit were predictors of mortality. The oncological causes of death outweighed the cardiovascular ones, bordering on statistical significance with respect to the general population. CONCLUSIONS: Mortality remains significantly high in patients with acromegaly, irrespectively of disease status, as long as the follow-up is sufficiently long with a low rate of patients lost to follow-up. Therapy strategy including radiotherapy does not have an impact on mortality. Oncological causes of death currently outweigh the cardiovascular causes.


Assuntos
Acromegalia , Humanos , Masculino , Feminino , Acromegalia/mortalidade , Acromegalia/terapia , Itália/epidemiologia , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto , Seguimentos , Idoso , Taxa de Sobrevida , Prognóstico
3.
J Endocrinol Invest ; 46(10): 2133-2146, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36971952

RESUMO

PURPOSE: Potential negative effects of metabolic surgery on skeletal integrity remain a concern, since long-term data of different surgical approaches are poor. This study aimed to describe changes in bone metabolism in subjects with obesity undergoing both Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG). METHODS: A single center, retrospective, observational clinical study on real-world data was performed enrolling subjects undergoing metabolic surgery. RESULTS: 123 subjects were enrolled (males 31: females 92; ages 48.2 ± 7.9 years). All patients were evaluated until 16.9 ± 8.1 months after surgery, while a small group was evaluated up to 4.5 years. All patients were treated after surgery with calcium and vitamin D integration. Both calcium and phosphate serum levels significantly increased after metabolic surgery and remained stable during follow-up. These trends did not differ between RYGB and SG (p = 0.245). Ca/P ratio decreased after surgery compared to baseline (p < 0.001) and this decrease remained among follow-up visits. While 24-h urinary calcium remained stable across all visits, 24-h urinary phosphate showed lower levels after surgery (p = 0.014), also according to surgery technique. Parathyroid hormone decreased (p < 0.001) and both vitamin D (p < 0.001) and C-terminal telopeptide of type I collagen (p = 0.001) increased after surgery. CONCLUSION: We demonstrated that calcium and phosphorous metabolism shows slight modification even after several years since metabolic surgery, irrespective of calcium and vitamin D supplementation. This different set point is characterized by a phosphate serum levels increase, together with a persistent bone loss, suggesting that supplementation alone may not ensure the maintenance of bone health in these patients.


Assuntos
Cirurgia Bariátrica , Densidade Óssea , Masculino , Feminino , Humanos , Estudos Retrospectivos , Cálcio , Obesidade/complicações , Obesidade/cirurgia , Vitamina D , Fosfatos
4.
J Endocrinol Invest ; 46(6): 1241-1274, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36698034

RESUMO

PURPOSE: Erectile dysfunction (ED) is one of the most prevalent male sexual dysfunctions. ED has been in the past mistakenly considered a purely psycho-sexological symptom by patients and doctors. However, an ever-growing body of evidence supporting the role of several organic factors in the pathophysiological mechanisms underlying ED has been recognized. METHODS: The Italian Society of Andrology and Sexual Medicine (SIAMS) commissioned an expert task force involving several other National Societies to provide an updated guideline on the diagnosis and management of ED. Derived recommendations were based on the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system. RESULTS: Several evidence-based statements were released providing the necessary up-to-date guidance in the context of ED with organic and psychosexual comorbidities. Many of them were related to incorrect lifestyle habits suggesting how to associate pharmacotherapies and counseling, in a couple-centered approach. Having the oral therapy with phosphodiesterase type 5 inhibitors as the gold standard along with several other medical and surgical therapies, new therapeutic or controversial options were also discussed. CONCLUSIONS: These are the first guidelines based on a multidisciplinary approach that involves the most important Societies related to the field of sexual medicine. This fruitful discussion allowed for a general agreement on several recommendations and suggestions to be reached, which can support all stakeholders in improving couple sexual satisfaction and overall general health.


Assuntos
Andrologia , Disfunção Erétil , Humanos , Masculino , Disfunção Erétil/diagnóstico , Disfunção Erétil/etiologia , Disfunção Erétil/terapia , Sociedades Científicas , Comportamento Sexual , Aconselhamento
5.
J Endocrinol Invest ; 45(10): 1887-1897, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35590044

RESUMO

PURPOSE: Coronavirus disease (COVID-19) lockdowns have impacted on management of osteoporosis and the use of telemedicine is increasingly widespread albeit supported by little evidence so far. The aim of the study is to assess adherence to denosumab and incidence of non-traumatic fractures during the lockdown compared to the pre-COVID-19 year and to explore the effectiveness of telemedicine in the management of osteoporotic patients. METHODS: Retrospective, longitudinal, single-center study on patients receiving subcutaneous denosumab therapy every 6 months. Each patient was scheduled to undergo 2 visits: one during the pre-COVID-19 period (March 2019-March 2020) and another visit during the lockdown period (March 2020-March 2021). Data on new fractures, adherence, risk factors for osteoporosis and the modality of visit (telemedicine or face-to-face) were collected. RESULTS: The prevalence of non-adherent patients was higher during the lockdown (35 of 269 patients, 13.0%) than the pre-COVID-19 period (9 of 276 patients, 3.3%) (p < 0.0001). During the lockdown, the number of new non-traumatic fractures was higher than the pre-COVID-19 year (p < 0.0001): 10 patients out of 269 (3.7%) experienced a fragility fracture and 2 patients (0.7%) a probable rebound fracture during the lockdown period, whereas no patient had fragility/rebound fractures during the pre-COVID-19 period. No difference was found in the prevalence of non-adherence and new non-traumatic fractures comparing patients evaluated with tele-medicine to those evaluated with face-to-face visit. CONCLUSION: Non-adherent patients and new non-traumatic fractures (including rebound fractures) were more prevalent during the lockdown in comparison to the pre-COVID-19 period, regardless of the modality of medical evaluation.


Assuntos
Conservadores da Densidade Óssea , COVID-19 , Osteoporose , Fraturas por Osteoporose , Telemedicina , Conservadores da Densidade Óssea/uso terapêutico , COVID-19/epidemiologia , Controle de Doenças Transmissíveis , Denosumab/uso terapêutico , Humanos , Incidência , Osteoporose/tratamento farmacológico , Osteoporose/epidemiologia , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/etiologia , Fraturas por Osteoporose/prevenção & controle , Estudos Retrospectivos
6.
J Endocrinol Invest ; 45(12): 2385-2403, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36018454

RESUMO

PURPOSE: To provide the evidence-based recommendations on the role of testosterone (T) on age-related symptoms and signs remains. METHODS: The Italian Society of Andrology and Sexual Medicine (SIAMS) and the and the Italian Society of Endocrinology (SIE) commissioned an expert task force to provide an updated guideline on adult-onset male hypogonadism. Derived recommendations were based on Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system. RESULTS: Clinical diagnosis of adult-onset hypogonadism should be based on a combination of clinical and biochemical parameters. Testosterone replacement therapy (TRT) should be offered to all symptomatic subjects with hypogonadism after the exclusion of possible contraindications. T gels and the long-acting injectable T are currently available preparations showing the best efficacy/safety profile. TRT can improve all aspects of sexual function, although its effect is limited in more complicated patients. Body composition (reducing fat mass and increasing lean mass) is improved after TRT, either in subjects with or without metabolic syndrome or type 2 diabetes. Conversely, the role of TRT in improving glycometabolic control is more conflicting. TRT can result in increasing bone mineral density, particularly at lumbar site, but no information on fracture risk is available. Limited data support the use of TRT for improving other outcomes, including mood frailty and mobility. CONCLUSIONS: TRT can improve sexual function and body composition particularly in less complicated adult and in aging subjects with hypogonadism. When hypogonadism is adequately diagnosed, T appropriately prescribed and subjects correctly followed up, no short-term increased risk of adverse events is observed. Longer and larger studies are advisable to better clarify TRT long-term efficacy/safety profile.


Assuntos
Andrologia , Diabetes Mellitus Tipo 2 , Hipogonadismo , Adulto , Humanos , Masculino , Diabetes Mellitus Tipo 2/tratamento farmacológico , Terapia de Reposição Hormonal , Hipogonadismo/diagnóstico , Hipogonadismo/tratamento farmacológico , Hipogonadismo/complicações , Itália/epidemiologia , Testosterona/uso terapêutico , Sociedades Médicas
7.
J Endocrinol Invest ; 45(9): 1787-1799, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35527295

RESUMO

In the last years, hypersexual behavior has been broadly scientifically studied. The interest in this topic, belonging to psycho-sexology and sexual medicine, has been due to its still unclear aetiology, nature, and its manifestation in relationship with several organic and psychopathological conditions. So, the specialist (the psychologist, psychiatrist, endocrinologist, neurologist) may encounter some difficulties in diagnosing and managing this symptom. The first main objective of this position statement, which has been developed in collaboration between the Italian Society of Andrology and Sexual Medicine (SIAMS) and the Italian Society of Psychopathology (SOPSI) is to give to the reader evidence about the necessity to consider hypersexuality as a symptom related to another underlying condition. Following this consideration, the second main objective is to give specific statements, for the biopsychosocial assessment and the diagnosis of hypersexual behavior, developed on the basis of the most recent literature evidence. To develop a psycho-pharmacological treatment tailored on patients' needs, our suggestion is to assess the presence of specific comorbid psychopathological and organic conditions, and the impact of pharmacological treatments on the presence of an excess of sexual behavior. Finally, a suggestion of a standardized psychometric evaluation of hypersexuality will be given.


Assuntos
Andrologia , Transtornos Parafílicos , Comportamento Compulsivo , Humanos , Transtornos Parafílicos/diagnóstico , Transtornos Parafílicos/terapia , Psicometria , Comportamento Sexual/psicologia
8.
J Endocrinol Invest ; 45(5): 1085-1113, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35075609

RESUMO

PURPOSE: Infertility affects 15-20% of couples and male factors are present in about half of the cases. For many aspects related to the diagnostic and therapeutic approach of male factor infertility, there is no general consensus, and the clinical approach is not uniform. METHODS: In the present document by the Italian Society of Andrology and Sexual Medicine (SIAMS), endorsed by the Italian Society of Embryology, Reproduction, and Research (SIERR), we propose evidence-based recommendations for the diagnosis, treatment, and management of male factor infertility to improve patient and couple care. RESULTS: Components of the initial evaluation should include at minimum medical history, physical examination, and semen analysis. Semen microbiological examination, endocrine assessment, and imaging are suggested in most men and recommended when specific risk factors for infertility exist or first-step analyses showed abnormalities. Full examination including genetic tests, testicular cytology/histology, or additional tests on sperm is clinically oriented and based on the results of previous investigations. For treatment purposes, the identification of the specific cause and the pathogenetic mechanism is advisable. At least, distinguishing pre-testicular, testicular, and post-testicular forms is essential. Treatment should be couple-oriented, including lifestyle modifications, etiologic therapies, empirical treatments, and ART on the basis of best evidence and with a gradual approach. CONCLUSION: These Guidelines are based on two principal aspects: they are couple-oriented and place high value in assessing, preventing, and treating risk factors for infertility. These Guidelines also highlighted that male infertility and in particular testicular function might be a mirror of general health of a man.


Assuntos
Andrologia , Infertilidade Masculina , Humanos , Infertilidade Masculina/diagnóstico , Infertilidade Masculina/etiologia , Infertilidade Masculina/terapia , Masculino , Reprodução , Análise do Sêmen , Espermatozoides
9.
J Endocrinol Invest ; 45(9): 1769-1776, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35608733

RESUMO

BACKGROUND: Klinefelter syndrome (KS) is frustratingly under-diagnosed. KS have a broad spectrum of clinical features, making it difficult to identify.  OBJECTIVE: We describe KS clinical presentation in a large Italian cohort. DESIGN: This is the first observational cohort study within a national network, the Klinefelter ItaliaN Group (KING). Primary outcomes were to describe the basic clinical features and the actual phenotype of KS in Italy. Secondary outcomes were to determine age at diagnosis and geographical distribution. METHODS: We performed a basic phenotyping and evaluation of the hormonal values of 609 adult KS patients. RESULTS: Mean age at diagnosis was 37.4 ± 13.4 years. The overall mean testicular size was 3 ml, and 2.5 ml in both testes in untreated KS group. BMI was 26.6 ± 5.8 kg/m2, and 25.5% of KS had metabolic syndrome (MetS). LH and FSH were increased, and mean total testosterone were 350 ± 9.1 ng/dl. A descriptive analysis showed that 329 KS patients were evaluated in Northern Italy, 76 in Central and 204 in Southern Italy. Analysis of variance demonstrated significant statistical differences (p < 0001) between the age at diagnosis of the three geographical groups. Compared with the expected number among male patients matched for age in Italy, only 16% of KS patients received a diagnosis. CONCLUSIONS: These data are the results of the only national database available that collects the clinical and hormonal data of the KS patients, currently referred at the KING centers. In Italy the typical KS patient is overweight, with small testes, and elevated LH and FSH. Only 25.5% of them are diagnosed with MetS. Early detection and timely treatment are mandatory.


Assuntos
Hipogonadismo , Síndrome de Klinefelter , Síndrome Metabólica , Hormônio Foliculoestimulante/uso terapêutico , Humanos , Hipogonadismo/tratamento farmacológico , Síndrome de Klinefelter/complicações , Síndrome de Klinefelter/diagnóstico , Síndrome de Klinefelter/epidemiologia , Masculino , Síndrome Metabólica/complicações , Síndrome Metabólica/diagnóstico , Síndrome Metabólica/epidemiologia , Testículo , Testosterona/uso terapêutico
10.
Hum Reprod ; 36(6): 1469-1480, 2021 05 17.
Artigo em Inglês | MEDLINE | ID: mdl-33792685

RESUMO

Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) play complementary roles in follicle development and ovulation via a complex interaction in the hypothalamus, anterior pituitary gland, reproductive organs, and oocytes. Impairment of the production or action of gonadotropins causes relative or absolute LH and FSH deficiency that compromises gametogenesis and gonadal steroid production, thereby reducing fertility. In women, LH and FSH deficiency is a spectrum of conditions with different functional or organic causes that are characterized by low or normal gonadotropin levels and low oestradiol levels. While the causes and effects of reduced LH and FSH production are very well known, the notion of reduced action has received less attention by researchers. Recent evidence shows that molecular characteristics, signalling as well as ageing, and some polymorphisms negatively affect gonadotropin action. These findings have important clinical implications, in particular for medically assisted reproduction in which diminished action determined by the afore-mentioned factors, combined with reduced endogenous gonadotropin production caused by GnRH analogue protocols, may lead to resistance to gonadotropins and, thus, to an unexpected hypo-response to ovarian stimulation. Indeed, the importance of LH and FSH action has been highlighted by the International Committee for Monitoring Assisted Reproduction Technologies (ICMART) in their definition of hypogonadotropic hypogonadism as gonadal failure associated with reduced gametogenesis and gonadal steroid production due to reduced gonadotropin production or action. The aim of this review is to provide an overview of determinants of reduced FSH and LH action that are associated with a reduced response to ovarian stimulation.


Assuntos
Hormônio Foliculoestimulante , Hormônio Liberador de Gonadotropina , Estradiol , Feminino , Gonadotropinas , Humanos , Hormônio Luteinizante , Reprodução
11.
J Endocrinol Invest ; 44(7): 1501-1513, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33123965

RESUMO

PURPOSE: To cope physical and/or psychological threats, the human body activates multiple processes, mediated by a close interconnection among brain, endocrine and inflammatory systems. The aim of the study was to assess the hypothalamic-pituitary-adrenal (HPA) and hypothalamic-pituitary-thyroid (HPT) axes involvement after an acute stressful event (Emilia Romagna earthquake swarm) with a big data approach. METHODS: A retrospective, observational trial was performed, collecting all biochemical examinations regarding HPA and HPT axes performed in the same laboratory the year before and the year after the earthquake swarm (20-29 May 2012). RESULTS: Comparing 2576 pre-earthquake to 3021 post-earthquake measurements, a cortisol serum level increase was observed (p < 0.001). Similar increase was evident for urinary free cortisol (p = 0.016), but not for adrenocorticotropic hormone (p = 0.222). The biochemical hypercortisolism incidence increased from 7.6 to 10.3% after earthquakes (p = 0.001). Comparing 68,456 pre-earthquake to 116,521 post-earthquake measurements, a reduction in thyroid-stimulating hormone (TSH) levels was evident (p = 0.018), together with an increase in free triiodothyronine and free thyroxine levels (p < 0.001 and p < 0.001). Moreover, a significant increase in altered TSH after earthquakes was registered considering the epicenter-nearest measurements (p < 0.001). No clinically relevant alterations were observed considering thyroid-specific autoantibodies. CONCLUSION: A long-term HPA axis activation in the inhabitants of the earthquake-affected areas was highlighted for the first time. Moreover, an increased incidence of biochemical hypercortisolism emerged after earthquakes. We confirmed a recruitment of HPT axis after stressful events, together with increased incidence of altered TSH in the. Our big data study allowed to increase knowledge about the connection between external stressors and endocrine regulation.


Assuntos
Síndrome de Cushing/epidemiologia , Terremotos , Hidrocortisona/metabolismo , Hipotálamo/patologia , Sistema Hipófise-Suprarrenal/patologia , Glândula Tireoide/patologia , Hormônios Tireóideos/metabolismo , Adulto , Big Data , Síndrome de Cushing/metabolismo , Síndrome de Cushing/patologia , Análise de Dados , Feminino , Seguimentos , Humanos , Hipotálamo/metabolismo , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Sistema Hipófise-Suprarrenal/metabolismo , Estudos Retrospectivos , Glândula Tireoide/metabolismo
12.
J Endocrinol Invest ; 42(9): 1041-1049, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30796757

RESUMO

PURPOSE: The serum calcium/phosphorus (Ca/P) ratio is an accurate tool to differentiate patients with primary hyperparathyroidism (PHPT) from healthy subjects. However, other disorders of the Ca-P metabolism might impair the Ca/P ratio, such as hypophosphatemia (HypoP) not PHPT related. The aim of this study is to examine the diagnostic value of Ca/P ratio in the diagnosis of PHPT and HypoP not PHPT related. METHODS: Single-center, retrospective, case-control study, including 150 patients with PHPT and 306 patients with HypoP, compared with 150 controls. HypoP patients were enrolled among HIV-infected patients by selecting those with Fanconi-like syndrome due to antiretroviral treatment. Parameters which were measured were serum Ca, P, parathyroid hormone (PTH), 25-OH vitamin D, albumin and creatinine). RESULTS: The Ca/P ratio was significantly higher in PHPT and HypoP patients, compared to controls (p < 0.0001). At receiver operator characteristic (ROC) curve analysis, the cut-off of 3.56 (2.75 SI) for Ca/P ratio was able to identify patients with PHPT and HypoP (sensitivity 95%; specificity 93%). Among patients with Ca/P ratio above 3.56, the thresholds of 10.3 mg/dL (2.6 mmol/L) for serum Ca (sensitivity 93%; specificity 98%) and 80.5 pg/mL for PTH (sensitivity 91%; specificity 91%) were defined for the specific diagnosis of PHPT. CONCLUSIONS: The Ca/P ratio above 3.56 (2.75 SI) is a highly accurate tool to identify PHPT and HypoP not PHPT-related patients. Thanks to its simplicity, this index can be proposed as a screening and first-line examination in the diagnostic work-up when a disorder of Ca-P metabolism is suspected or should be ruled out.


Assuntos
Biomarcadores/metabolismo , Cálcio/metabolismo , Infecções por HIV/metabolismo , Hiperparatireoidismo Primário/diagnóstico , Hipofosfatemia/diagnóstico , Fósforo/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Seguimentos , HIV/isolamento & purificação , Infecções por HIV/complicações , Infecções por HIV/virologia , Humanos , Hiperparatireoidismo Primário/complicações , Hiperparatireoidismo Primário/metabolismo , Hipofosfatemia/complicações , Hipofosfatemia/metabolismo , Masculino , Pessoa de Meia-Idade , Prognóstico , Reprodutibilidade dos Testes , Estudos Retrospectivos , Adulto Jovem
13.
J Endocrinol Invest ; 42(10): 1199-1204, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30912057

RESUMO

PURPOSE: The prevalence and the etiopathogenesis of thyroid dysfunctions in Klinefelter syndrome (KS) are still unclear. The primary aim of this study was to evaluate the pathogenetic role of hypogonadism in the thyroid disorders described in KS, with the scope to distinguish between patients with KS and hypogonadism due to other causes (Kallmann syndrome, idiopathic hypogonadotropic hypogonadism, iatrogenic hypogonadism and acquired hypogonadotropic hypogonadism after surgical removal of pituitary adenomas) called non-KS. Therefore, we evaluated thyroid function in KS and in non-KS hypogonadal patients. METHODS: This is a case-control multicentre study from KING group: Endocrinology clinics in university-affiliated medical centres. One hundred and seventy four KS, and sixty-two non-KS hypogonadal men were enrolled. The primary outcome was the prevalence of thyroid diseases in KS and in non-KS. Changes in hormonal parameters were evaluated. Exclusion criterion was secondary hypothyroidism. Analyses were performed using Student's t test. Mann-Whitney test and Chi-square test. RESULTS: FT4 was significantly lower in KS vs non-KS. KS and non-KS presented similar TSH and testosterone levels. Hashimoto's thyroiditis (HT) was diagnosed in 7% of KS. Five KS developed hypothyroidism. The ratio FT3/FT4 was similar in both groups. TSH index was 1.9 in KS and 2.3 in non-KS. Adjustment for differences in age, sample size and concomitant disease in multivariate models did not alter the results. CONCLUSIONS: We demonstrated in KS no etiopathogenic link to hypogonadism or change in the set point of thyrotrophic control in the altered FT4 production. The prevalence of HT in KS was similar to normal male population, showing absence of increased risk of HT associated with the XXY karyotype.


Assuntos
Síndrome de Klinefelter/fisiopatologia , Glândula Tireoide/fisiologia , Centros Médicos Acadêmicos , Adolescente , Adulto , Idoso , Estudos de Casos e Controles , Feminino , Doença de Hashimoto/sangue , Doença de Hashimoto/fisiopatologia , Humanos , Hipogonadismo/sangue , Hipogonadismo/fisiopatologia , Itália , Síndrome de Klinefelter/sangue , Masculino , Pessoa de Meia-Idade , Doenças da Glândula Tireoide/sangue , Doenças da Glândula Tireoide/fisiopatologia , Testes de Função Tireóidea , Hormônios Tireóideos/sangue , Tireotropina/sangue , Adulto Jovem
14.
J Endocrinol Invest ; 41(11): 1259-1266, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29536433

RESUMO

PURPOSE: To examine differences in effects according to growth hormone (GH) treatment duration in adult GH-deficient patients. METHODS: In the Italian cohort of the observational Hypopituitary Control and Complications Study, GH-treated adults with GH deficiency (GHD) were grouped by duration of treatment; ≤ 2 years (n = 451), > 2 to ≤ 6 years (n = 387) and > 6 years (n = 395). Between-group differences in demographics, medical history, physical characteristics, insulin-like growth factor-I standard deviation score (IGF-I SDS) and lipid profile at baseline, last study visit and changes from baseline to last study visit were assessed overall, for adult- and childhood-onset GHD and by gender using ANOVA for continuous variables and Chi-squared test for categorical variables. RESULTS: At baseline, treatment duration groups did not differ significantly for age, gender, body mass index, GHD onset, IGF-I SDS, lipid profile, and quality of life. Mean initial GH dose did not differ significantly according to treatment duration group in any subgroup, except female patients, with highest mean dose seen in the longest duration group. In the longest duration group for patients overall, adult-onset patients and male patients, there were significant decreases in GH dose from baseline to last visit, and in total and low-density lipoprotein (LDL)-cholesterol concentrations. IGF-I SDS increased, to a greater extent, in the longest duration group for patients overall and female patients. CONCLUSIONS: The results show that long-term GH treatment is associated with decreasing GH dose, increased IGF-I, decreased LDL-cholesterol and the presence of surrogate markers that help to give confidence in a diagnosis of GHD.


Assuntos
Terapia de Reposição Hormonal/métodos , Hormônio do Crescimento Humano/uso terapêutico , Hipopituitarismo/tratamento farmacológico , Fator de Crescimento Insulin-Like I/metabolismo , Adulto , Fatores Etários , Índice de Massa Corporal , Estudos de Coortes , Relação Dose-Resposta a Droga , Feminino , Hormônio do Crescimento Humano/sangue , Hormônio do Crescimento Humano/deficiência , Humanos , Hipopituitarismo/sangue , Itália , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Resultado do Tratamento
15.
J Endocrinol Invest ; 40(2): 123-134, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27644703

RESUMO

Klinefelter Syndrome (KS) is characterized by an extreme heterogeneity in its clinical and genetic presentation. The relationship between clinical phenotype and genetic background has been partially disclosed; nevertheless, physicians are aware that several aspects concerning this issue are far to be fully understood. By improving our knowledge on the role of some genetic aspects as well as on the KS, patients' interindividual differences in terms of health status will result in a better management of this chromosomal disease. The aim of this review is to provide an update on both genetic and clinical phenotype and their interrelationships.


Assuntos
Hipogonadismo/genética , Hipogonadismo/patologia , Síndrome de Klinefelter/genética , Síndrome de Klinefelter/patologia , Humanos , Fenótipo
16.
J Endocrinol Invest ; 40(8): 841-850, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28326509

RESUMO

PURPOSE: Liquid-chromatography tandem mass-spectrometry (LC-MS/MS) was developed in parallel to Immunoassays (IAs) and today is proposed as the "gold standard" for steroid assays. Leydig cells of men with Klinefelter syndrome (KS) are able to respond to human chorionic gonadotropin (hCG) stimulation, even if testosterone (T) production was impaired. The aim was to evaluate how results obtained by IAs and LC-MS/MS can differently impact on the outcome of a clinical research on gonadal steroidogenesis after hCG stimulation. METHODS: A longitudinal, prospective, case-control clinical trial. (clinicaltrial.gov NCT02788136) was carried out, enrolling KS men and healthy age-matched controls, stimulated by hCG administration. Serum steroids were evaluated at baseline and for 5 days after intramuscular injection of 5000 IU hCG using both IAs and LC-MS/MS. RESULTS: 13 KS patients (36 ± 9 years) not receiving T replacement therapy and 14 controls (32 ± 8 years) were enrolled. T, progesterone, cortisol, 17-hydroxy-progesterone (17OHP) and androstenedione, were significantly higher using IAs than LC-MS/MS. IAs and LC-MS/MS showed direct correlation for all five steroids, although the constant overestimation detected by IAs. Either methodology found the same 17OHP and T increasing profile after hCG stimulation, with equal areas under the curves (AUCs). CONCLUSIONS: Although a linearity between IA and LC-MS/MS is demonstrated, LC-MS/MS is more sensitive and accurate, whereas IA shows a constant overestimation of sex steroid levels. This result suggests the need of reference intervals built on the specific assay. This fundamental difference between these two methodologies opens a deep reconsideration of what is needed to improve the accuracy of steroid hormone assays.


Assuntos
Gonadotropina Coriônica/uso terapêutico , Hormônios Esteroides Gonadais/sangue , Imunoensaio/métodos , Síndrome de Klinefelter/sangue , Espectrometria de Massas em Tandem/métodos , 17-alfa-Hidroxiprogesterona/sangue , Adolescente , Adulto , Estudos de Casos e Controles , Humanos , Hidrocortisona/sangue , Síndrome de Klinefelter/tratamento farmacológico , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Progesterona/sangue , Estudos Prospectivos , Testosterona/sangue , Adulto Jovem
17.
Osteoporos Int ; 27(3): 1103-1114, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26510848

RESUMO

SUMMARY: By investigating the relationship between serum testosterone, estradiol, and bone mineral density (BMD) in a large cohort of HIV-infected men, estradiol was associated with BMD, relative estrogen deficiency being involved in bone loss in men with hypogonadism, in addition to all HIV-related factors. Increased aromatization in adipose tissue does not counteract HIV-related bone loss. INTRODUCTION: The purpose of this study is to evaluate the relationship between serum testosterone, estradiol, and BMD in a large cohort of HIV-infected men. METHODS: We investigated biochemical, hormonal parameters, and BMD in 1204 HIV-infected men (age 45.64 ± 7.33 years) participating in a cross-sectional, observational study. Among other parameters, the main outcome measures were serum total testosterone and estradiol, gonadotropins, 25-hydroxyvitamin D [25(OH)D], parathormone (PTH), calcium, phosphorous, femoral, and lumbar BMD. RESULTS: In men with HIV, the prevalence of osteoporosis and osteopenia is 15.1 and 63.2% with 25(OH)D insufficiency being very common (60.1%). After age adjustment, BMD is positively associated with estradiol, but not testosterone, at linear (p < 0.001) and stepwise (p < 0.05) multiple regression. Lumbar BMD significantly increases across the estradiol quartiles but not among testosterone quartiles. Femoral and lumbar BMD are significantly higher in men with estradiol ≥ 27 pg/mL than in those with estradiol <27 pg/mL. Apart from estradiol, only age, calcium, and BMI predict BMD at stepwise linear multiple regression, but the strength of this association is weak. CONCLUSIONS: Estradiol, but not testosterone, is associated with BMD in HIV-infected men and exerts a protective role on bone especially when it is above 27 pg/mL. Relative estrogen deficiency is a potential mechanism involved in bone loss in hypogonadal HIV-infected men, in addition to all HIV-related factors. Increased aromatization in adipose tissue does not counteract HIV-related bone loss. Finally, reduced BMD in young-to-middle-aged HIV-infected men might be considered a peculiar hallmark of HIV infection due to its relevant prevalence, representing one of the several pieces composing the complicated puzzle of premature aging related to HIV infection.


Assuntos
Estradiol/sangue , Infecções por HIV/complicações , Osteoporose/virologia , Testosterona/sangue , Adulto , Idoso , Antropometria/métodos , Densidade Óssea/fisiologia , Doenças Ósseas Metabólicas/sangue , Doenças Ósseas Metabólicas/fisiopatologia , Doenças Ósseas Metabólicas/virologia , Estudos Transversais , Fêmur/diagnóstico por imagem , Fêmur/fisiopatologia , Infecções por HIV/sangue , Humanos , Vértebras Lombares/diagnóstico por imagem , Vértebras Lombares/fisiopatologia , Masculino , Pessoa de Meia-Idade , Osteoporose/sangue , Osteoporose/diagnóstico por imagem , Osteoporose/fisiopatologia , Adulto Jovem
18.
J Endocrinol Invest ; 39(7): 807-34, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26969462

RESUMO

Treatment of osteoporosis is aimed to prevent fragility fractures and to stabilize or increase bone mineral density. Several drugs with different efficacy and safety profiles are available. The long-term therapeutic strategy should be planned, and the initial treatment should be selected according to the individual site-specific fracture risk and the need to give the maximal protection when the fracture risk is highest (i.e. in the late life). The present consensus focused on the strategies for the treatment of postmenopausal osteoporosis taking into consideration all the drugs available for this purpose. A short revision of the literature about treatment of secondary osteoporosis due both to androgen deprivation therapy for prostate cancer and to aromatase inhibitors for breast cancer was also performed. Also premenopausal females and males with osteoporosis are frequently seen in endocrine settings. Finally particular attention was paid to the tailoring of treatment as well as to its duration.


Assuntos
Densidade Óssea/efeitos dos fármacos , Osteoporose/tratamento farmacológico , Fraturas por Osteoporose/prevenção & controle , Conservadores da Densidade Óssea/uso terapêutico , Consenso , Endocrinologistas , Feminino , Humanos , Itália , Masculino
19.
J Endocrinol Invest ; 36(9): 722-8, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23579962

RESUMO

BACKGROUND: Italy is characterized by high prevalence of goiter. To date, only limited data about the prevalence of goiter in the Italian adult population are available. AIM: To investigate the prevalence of thyroid ultrasound abnormalities in adults unaware of any thyroid disease and evaluate the rate of differentiated thyroid cancer (DTC) obtained by this intervention. METHODS: Ultrasound (US) thyroid scan was performed in adult volunteers recruited by advertisement in Modena, Italy. One hundred and thirty-five women and 66 men (no.= 201), unaware of any thyroid disease (mean age of 46 ± 10.7 yr) underwent their first thyroid US scan. RESULTS: US thyroid abnormalities were found in 101 subjects (50.3%): 91 nodular goiters (45.2%) and 13 US-thyroiditis (6.5%) associated with positive auto-antibodies in 11 of them. Seventeen subjects (18%) with nodules underwent US-fine needle aspiration biopsy with the following cytological class (C) outcome: 14 patients C2 (82%), 1 patient C3 (6%), 2 patients had C4 (12%), the latter received histological confirmation. CONCLUSIONS: The prevalence of thyroid abnormalities is very high in subjects unaware of any thyroid disease. DTC was found in 1% of subjects and in 2% of those affected by nodular goiter. Compared to the detection rate of the well-established screening programs for breast (0.45%) and colorectal (0.27%) cancer, the prevalence of DTC seems to be much higher. Thyroid US screening could allow the detection of DTC in asymptomatic subjects and this diagnosis often includes DTC at an advanced stage. Thus, US screening not necessarily results in the over-diagnosis of clinically not relevant thyroid diseases.


Assuntos
Doenças da Glândula Tireoide/epidemiologia , Glândula Tireoide/diagnóstico por imagem , Adulto , Idoso , Autoanticorpos/análise , Biópsia por Agulha Fina , Feminino , Bócio Nodular/diagnóstico por imagem , Bócio Nodular/epidemiologia , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Doenças da Glândula Tireoide/diagnóstico por imagem , Glândula Tireoide/imunologia , Glândula Tireoide/patologia , Neoplasias da Glândula Tireoide/diagnóstico por imagem , Neoplasias da Glândula Tireoide/epidemiologia , Tireoidite/patologia , Ultrassonografia
20.
Andrology ; 6(2): 272-285, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29499097

RESUMO

Male osteoporosis is now a well-recognized medical disorder with established clinical guidelines for both diagnosis and management. Prevention as well as management of osteoporosis in men consulting the andrological outpatient clinic because of low testosterone, however, is not well established. This gap of knowledge is-at least partly-explained by the controversy with respect to the threshold of testosterone needed for skeletal maintenance. However, testosterone deficiency may be clearly associated with bone loss as well as frailty in men. If anything, andrologists should therefore be aware of the potential silent presence of osteoporosis in men with confirmed hypogonadism. Therefore, the management of patients with potential hypogonadism should include a complete bone health assessment, besides clinical and biochemical evaluation of gonadal status. Such bone health assessment should include specific items in medical history and physical examination related to fracture risk. Furthermore, dual-energy absorptiometry is indicated to evaluate fracture risk in men with confirmed clinical hypogonadism. Regarding treatment, besides general measures to prevent or manage male osteoporosis testosterone replacement can be initiated (as described in guidelines for hypogonadism), but data on its efficacy in preventing fractures are lacking. Thus, additional anti-osteoporotic may be needed, especially in men with very low testosterone who are at high risk of bone loss and/or in men not able to receive testosterone replacement.


Assuntos
Hipogonadismo/diagnóstico , Osteoporose/prevenção & controle , Instituições de Assistência Ambulatorial , Nível de Saúde , Humanos , Hipogonadismo/complicações , Masculino , Osteoporose/etiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA