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1.
J Endocrinol Invest ; 2024 May 11.
Article in English | MEDLINE | ID: mdl-38733428

ABSTRACT

PURPOSE: Information on the general health of transgender and gender diverse (TGD) individuals continues to be lacking. To bridge this gap, the National Institute of Health in Italy together with the National Office against Racial Discriminations, clinical centres, and TGD organizations carried out a cross-sectional study to define the sociodemographic profile, health-related behaviours, and experiences of healthcare access in Italian TGD adult population. METHODS: A national survey was conducted by Computer-Assisted Web Interviewing (CAWI) technique. Collected data were compared within the TGD subgroups and between TGD people and the Italian general population (IGP). RESULTS: TGD respondents were 959: 65% assigned female at birth (AFAB) and 35% assigned male at birth (AMAB). 91.8% and 8.2% were binary and non-binary TGD respondents, respectively. More than 20% of the TGD population reported to be unemployed with the highest rate detectable in AMAB and non-binary people. Cigarette smoking and binge drinking were higher in the TGD population compared with IGP (p < 0.05), affecting TGD subgroups differently. A significant lower percentage of AFAB TGD people reported having had screening for cervical and breast cancer in comparison with AFAB IGP (p < 0.0001, in both cases). Over 40% was the percentage of AFAB and non-binary TGD people accessing healthcare who felt discriminated against because of their gender identity. CONCLUSIONS: Our results are a first step towards a better understanding of the health needs of TGD people in Italy in order to plan the best policy choices for a more inclusive public health.

2.
J Endocrinol Invest ; 2024 Feb 20.
Article in English | MEDLINE | ID: mdl-38376731

ABSTRACT

PURPOSE: Transition from pediatric to adult care is associated with significant challenges in patients with Turner syndrome (TS). The objective of the TRansition Age Management In Turner syndrome in Italy (TRAMITI) project was to improve the care provided to patients with TS by harnessing the knowledge and expertise of various Italian centers through a Delphi-like consensus process. METHODS: A panel of 15 physicians and 1 psychologist discussed 4 key domains: transition and referral, sexual and bone health and oncological risks, social and psychological aspects and systemic and metabolic disorders. RESULTS: A total of 41 consensus statements were drafted. The transition from pediatric to adult care is a critical period for patients with TS, necessitating tailored approaches and early disclosure of the diagnosis to promote self-reliance and healthcare autonomy. Fertility preservation and bone health strategies are recommended to mitigate long-term complications, and psychiatric evaluations are recommended to address the increased prevalence of anxiety and depression. The consensus also addresses the heightened risk of metabolic, cardiovascular and autoimmune disorders in patients with TS; regular screenings and interventions are advised to manage these conditions effectively. In addition, cardiac abnormalities, including aortic dissections, require regular monitoring and early surgical intervention if certain criteria are met. CONCLUSIONS: The TRAMITI consensus statement provides valuable insights and evidence-based recommendations to guide healthcare practitioners in delivering comprehensive and patient-centered care for patients with TS. By addressing the complex medical and psychosocial aspects of the condition, this consensus aims to enhance TS management and improve the overall well-being and long-term outcomes of these individuals.


The TRansition Age Management in Turner syndrome in Italy (TRAMITI) project aims to improve care for individuals with Turner Syndrome (TS) during their transition from pediatric to adult care. A team of 15 physicians and 1 psychologist collaborated to create a comprehensive set of 41 consensus statements, covering four key areas: transition and referral, sexual and bone health and oncological risks, social and psychological aspects and systemic and metabolic disorders. The consensus statements highlight the importance of patient-centered care, early intervention and long-term monitoring. They emphasize a multidisciplinary approach to address the complex medical and psychosocial aspects of TS. During the critical transition period, tailored approaches and early disclosure of the diagnosis are recommended to promote self-reliance and healthcare autonomy. To mitigate long-term complications, the consensus addresses fertility preservation and bone health strategies. It also recommends psychological or psychiatric evaluations to tackle the increased prevalence of anxiety and depression in patients with TS. In addition, strategies for addressing the heightened risk of metabolic, cardiovascular and autoimmune disorders in patients with TS are proposed. Regular screenings and interventions are advised to effectively manage these conditions. Furthermore, cardiac abnormalities, including aortic dissections, require close monitoring and early surgical intervention if specific criteria are met. Overall, the TRAMITI consensus statement provides valuable insights and evidence-based recommendations. It offers guidance for healthcare practitioners in delivering comprehensive and patient-centered care for individuals with TS. By addressing both medical and psychosocial aspects, the consensus aims to enhance TS management and improve the well-being and long-term outcomes of those affected by this genetic disorder.

4.
J Endocrinol Invest ; 45(3): 657-673, 2022 Mar.
Article in English | MEDLINE | ID: mdl-34677807

ABSTRACT

PURPOSE: Gender Incongruence (GI) is a marked and persistent incongruence between an individual's experienced and the assigned gender at birth. In the recent years, there has been a considerable evolution and change in attitude as regards to gender nonconforming people. METHODS: According to the Italian Society of Gender, Identity and Health (SIGIS), the Italian Society of Andrology and Sexual Medicine (SIAMS) and the Italian Society of Endocrinology (SIE) rules, a team of experts on the topic has been nominated by a SIGIS-SIAMS-SIE Guideline Board on the basis of their recognized clinical and research expertise in the field, and coordinated by a senior author, has prepared this Position statement. Later on, the present manuscript has been submitted to the Journal of Endocrinological Investigation for the normal process of international peer reviewing after a first internal revision process made by the SIGIS-SIAMS-SIE Guideline Board. RESULTS: In the present document by the SIGIS-SIAMS-SIE group, we propose experts opinions concerning the psychological functioning, gender affirming hormonal treatment, safety concerns, emerging issues in transgender healthcare (sexual health, fertility issues, elderly trans people), and an Italian law overview aimed to improve gender non-conforming people care. CONCLUSION: In this Position statement, we propose experts opinions concerning the psychological functioning of transgender people, the gender-affirming hormonal treatment (full/partial masculinization in assigned female at birth trans people, full/partial feminization and de-masculinization in assigned male at birth trans people), the emerging issues in transgender health care aimed to improve patient care. We have also included an overview of Italian law about gender affirming surgery and registry rectification.


Subject(s)
Gender Identity , Hormone Replacement Therapy , Patient Care , Transgender Persons/psychology , Transsexualism , Emotional Adjustment/physiology , Expert Testimony , Gonadal Steroid Hormones/therapeutic use , Hormone Replacement Therapy/methods , Hormone Replacement Therapy/standards , Humans , Italy , Male , Patient Care/methods , Patient Care/standards , Quality Improvement/organization & administration , Reproductive Medicine/methods , Sex Reassignment Surgery/legislation & jurisprudence , Sex Reassignment Surgery/methods , Transsexualism/psychology , Transsexualism/therapy
6.
Andrologia ; 46(7): 791-5, 2014 Sep.
Article in English | MEDLINE | ID: mdl-23944849

ABSTRACT

Administration of cross-sex hormones to male-to-female transsexual subjects, usually oestrogens + often anti-androgens, such as cyproterone acetate, carries a risk of venous thromboembolism (VTE). VTE usually occurs in the first year of oestrogen administration. Ethinyl oestradiol, due to its chemical structure, was in 2003 identified as a major factor in the occurrence of VTE. Most clinics do not prescribe ethinyl oestradiol any longer, but people who take hormones without medical supervision use often oral contraceptives containing ethinyl oestradiol, many times in overdose. Cessation of use of ethinyl oestradiol and peri-operative thrombosis prophylaxis for surgery have reduced prevalence rate of VTE. Other oral oestrogens should not be overdosed, and transdermal oestrogen is to be preferred. Thrombosis prophylaxis for surgery is mandatory. It seems advisable to stop hormone use at least 2 weeks before major surgery, to be resumed only after 3 weeks following full mobilisation.


Subject(s)
Hormone Replacement Therapy/adverse effects , Transsexualism , Venous Thromboembolism/etiology , Female , Humans , Male
7.
Int J Impot Res ; 25(5): 172-7, 2013 Sep.
Article in English | MEDLINE | ID: mdl-23552580

ABSTRACT

To date, the effects of long-term testosterone (T) administration on the human vagina are not completely understood. Thus, the aim of this study was to investigate the effects of long-term T treatment on vaginal tissue histology, estrogen receptor alpha (ERα) and beta (ERß) expression and proliferation in female to male transsexual subjects (FtM). We compared vaginal samples from FtM subjects with those of premenopausal women (PrM) and postmenopausal women (M) not receiving any hormonal treatment for at least 2 years. Vaginal tissue samples from 16 FtM subjects treated with T (intramuscular injections of 100 mg Testoviron Depot/7-10 days for at least 1 year), undergoing sex reassignment surgery, and 16 PrM and 16 M subjects undergoing a vaginal hysterectomy for prolapse, were collected. For each sample, morphology, glycogen content, proliferation (ki-67), ERα and ERß expression were evaluated. Vaginal samples from FtM showed a loss of normal architecture of the epithelium, intermediate and superficial layers were completely lost, and glycogen content was depleted. T administration resulted in a strong proliferation reduction when compared with both M and PrM subjects. Stromal and epithelial ERα as well as ERß were significantly decreased in FtM when compared with PrM subjects. In conclusion, our data suggests that systemic T administration at supraphysiological dosage, determines profound changes in histomorphology and reduces ERs expression and proliferation of vaginal epithelium.


Subject(s)
Epithelium/drug effects , Estrogen Receptor alpha/analysis , Estrogen Receptor beta/analysis , Sex Reassignment Procedures , Testosterone/administration & dosage , Vagina/drug effects , Adult , Aged , Drug Combinations , Epithelium/anatomy & histology , Female , Glycogen/analysis , Humans , Ki-67 Antigen/analysis , Middle Aged , Postmenopause , Premenopause , Transsexualism , Vagina/anatomy & histology
8.
Int J Impot Res ; 25(1): 7-11, 2013 Jan.
Article in English | MEDLINE | ID: mdl-22739456

ABSTRACT

Recent data report an important role of testosterone (T) in modulating female sexual responses, but little is known about the expression and distribution of androgen receptor (AR) in the human vagina. Therefore, the aims of our study were to evaluate the expression of AR in the human vagina in premenopausal (PrM) and menopausal (M) women and in T-treated women. Vaginal biopsies were obtained from PrM and postmenopausal women and from women with gender identity disorder (female to male (FtM)) receiving exogenous T. AR gene and protein expression levels in vaginal tissues were determined by real-time PCR and western blot analysis, respectively, whereas the localization of AR in vaginal mucosa and stroma was performed by immunohistochemistry. ARs were detected by immunostaining both in the mucosa and stroma. In vaginal mucosa, AR density score decreases with age but does not change with T administration. In stromal tissue, AR density score does not change with age but significantly increases with T administration (P<0.01). AR protein expression was significantly increased in FtM subjects (P<0.001). The expression of AR messenger RNA (mRNA) evaluated by Real-time PCR showed a significantly higher mRNA expression in FtM versus M patients (P<0.01) and in PrM versus M subjects (P<0.05). In conclusion, we found AR protein and mRNA expression both in the epithelium and stroma of the human vagina in all groups of women. A negative correlation exists between age and AR expression in the vaginal mucosa. T administration increases AR expression in both the mucosa and stroma.


Subject(s)
Menopause/metabolism , Premenopause/metabolism , Receptors, Androgen/metabolism , Testosterone/pharmacology , Vagina/metabolism , Adult , Aged , Female , Humans , Male , Middle Aged , Receptors, Androgen/genetics , Sex Reassignment Procedures , Vagina/drug effects , Vagina/surgery
9.
Int J Impot Res ; 23(6): 276-85, 2011.
Article in English | MEDLINE | ID: mdl-21833007

ABSTRACT

Childhood maltreatment (CM) is quite common and constitutes a nonspecific risk factor for a range of different psychiatric symptoms during lifespan. It has been demonstrated that sexual minorities are at higher risk of maltreatment and abuse, and a high proportion of transsexual subjects report CM. The aim of this study is to evaluate the prevalence of reported CM in a clinical sample of patients with male-to-female Gender Identity Disorder (MtF GID), and to explore the relationship between these early life events, body image and different psychopathological and clinical variables. A consecutive series of 162 patients with male genotype was evaluated from July 2008 to May 2010. A total of 109 subjects (mean age 36 ± 10 years) meeting the criteria for MtF GID and giving their informed consent were considered. The occurrence of CM experiences was evaluated through a face-to-face clinical interview. Patients were asked to complete the Body Uneasiness Test and Symptom Checklist-90 Revised. More than one-fourth of patients reported CM. Maltreated subjects reported a higher body dissatisfaction and display a worse lifetime mental health. The presence of reported CM in these patients has relevant psychopathological implications, and therefore should be carefully investigated.


Subject(s)
Child Abuse/statistics & numerical data , Transsexualism/psychology , Adult , Body Image , Child , Humans , Male , Mental Disorders/psychology , Middle Aged , Risk Factors , Surveys and Questionnaires
10.
Int J Androl ; 34(6 Pt 1): 548-55, 2011 Dec.
Article in English | MEDLINE | ID: mdl-21087288

ABSTRACT

Testosterone administered alone or in combination with progestogens in male contraception induces reversible oligo-azoospermia, but its effects on body composition and metabolism are less known. We analysed anthropometric and metabolic parameters in five groups of 10 males: four receiving testosterone undecanoate (TU: 1000 mg) plus norethisterone enanthate (NETE: 200 mg) at different intervals (every 8 weeks: NETE-8; every 12 weeks: NETE-12; every 6 weeks for 12 weeks and then every 12 weeks: NETE-6/12; every 6 weeks for 12 weeks and then TU plus placebo every 12 weeks: NETE-6/12/0) and one placebo (NETE-0/0) for a total of 48 weeks. Body mass index (BMI) and waist circumference did not change in any groups except for the NETE-8 in which BMI increased significantly (p = 0.02) at the end of the treatment period. Lean body mass (MAMC or AMA) increased significantly in the highest hormonal dose groups (p = 0.04, NETE-6/12; p = 0.004, NETE-8). No differences were observed in glucose levels, insulin sensitivity index and lipid profile as well as in biochemical and cell count parameters in any groups. In conclusion, NETE and TU for 48 weeks were not accompanied by any metabolic changes and any adverse effects. The weight gain of the highest NETE plus TU dosage was mainly because of gain in muscle mass.


Subject(s)
Anthropometry , Norethindrone/analogs & derivatives , Testosterone/analogs & derivatives , Adult , Body Mass Index , Humans , Male , Norethindrone/administration & dosage , Norethindrone/therapeutic use , Placebos , Testosterone/administration & dosage , Testosterone/therapeutic use
11.
Eur J Endocrinol ; 162(5): 831-3, 2010 May.
Article in English | MEDLINE | ID: mdl-20150325

ABSTRACT

The treatment of transsexual subjects is a challenging task for the endocrinologist who, in collaboration with the mental health professional and the surgeon, is called upon to confirm the diagnosis and adjust hormonal treatment aimed at suppressing endogenous sex hormones and to develop hormone characteristics of the desired gender. These guidelines are structured to provide evidence-based suggestions or, where evidence is lacking, expert recommendations on diagnostic procedures and hormonal treatment in adolescent and adult transsexuals, including long-term care and eligibility for surgery. The multidisciplinary approach to treatment, the additional diagnostic role of hormone administration and the need to maintain hormone levels within the physiological range are key suggestions stressed in the guidelines which are particularly important for an endocrinologist unfamiliar with this field. The need for psychological assessment before surgery is not common in many countries and should be stressed further in the guidelines. Some important issues such as time and method of hormone withdrawal before surgery together with when and which hormones should be administered after sex reassignment surgery has been completed also remain unclear. These guidelines represent a pivotal document for endocrinologists setting a standard for the care of transsexuals and providing directions for future research.


Subject(s)
Practice Guidelines as Topic , Transsexualism/drug therapy , Adolescent , Adult , Ethinyl Estradiol/adverse effects , Female , Gonadotropin-Releasing Hormone/analogs & derivatives , Gonadotropin-Releasing Hormone/therapeutic use , Hormones/adverse effects , Hormones/therapeutic use , Humans , Male , Puberty/drug effects , Risk , Transsexualism/diagnosis , Transsexualism/psychology , Venous Thromboembolism/chemically induced
12.
Ultrasound Obstet Gynecol ; 33(2): 209-12, 2009 Feb.
Article in English | MEDLINE | ID: mdl-19173235

ABSTRACT

OBJECTIVE: To evaluate if cervical length predicts prepartum bleeding and emergency Cesarean section in cases of placenta previa. METHODS: Between September 2005 and September 2007, cervical length was measured by transvaginal ultrasound in women with complete placenta previa persisting into the third trimester of pregnancy. A complete follow-up of pregnancy was obtained in all cases. RESULTS: Overall, 59 women were included in the study group. The mean +/- SD gestational age at ultrasound was 30.7 +/- 2.7 weeks and the cervical length was 36.9 +/- 8.8 mm. Cesarean delivery was performed in all cases, at a mean gestational age of 34.7 +/- 2.3 weeks. Twenty-nine (49.1%) of the women presented prepartum bleeding and 12 (20.3%) required an emergency Cesarean section prior to 34 completed weeks due to massive hemorrhage. Cervical length did not differ significantly between cases with and those without prepartum bleeding (35.3 +/- 9.3 mm vs. 38.4 +/- 8.2 mm; P = 0.18), but was significantly shorter among patients who underwent emergency Cesarean section < 34 weeks due to massive hemorrhage compared with patients who underwent elective Cesarean section (29.4 +/- 5.7 mm vs. 38.8 +/- 8.5 mm; P = 0.0006). CONCLUSIONS: Transvaginal sonographic cervical length predicts the risk of emergency Cesarean section < 34 weeks in women with complete placenta previa.


Subject(s)
Cervical Length Measurement , Cesarean Section/statistics & numerical data , Obstetric Labor, Premature/etiology , Placenta Previa/diagnostic imaging , Uterine Hemorrhage , Adult , Female , Humans , Predictive Value of Tests , Pregnancy , Pregnancy Trimester, Third , Prospective Studies
14.
Ultrasound Obstet Gynecol ; 30(5): 778-82, 2007 Oct.
Article in English | MEDLINE | ID: mdl-17899576

ABSTRACT

OBJECTIVE: To evaluate the feasibility of three-dimensional multiplanar sonography in the local staging of cervical carcinoma. METHODS: Between January 2005 and May 2006, 14 patients with invasive cervical carcinoma underwent transvaginal volume ultrasound examination prior to primary surgery. Parametrial invasion was evaluated in the coronal plane, while both bladder and rectal invasion were evaluated in the sagittal plane. Ultrasound findings were compared with surgical and histological results. RESULTS: In 12 of the 14 cases, three-dimensional ultrasound findings were compatible with pathology results. In the remaining two cases, either infiltration of right parametrium or rectal invasion were suspected at ultrasound but not confirmed at pathology. CONCLUSIONS: Despite the small number of patients evaluated, three-dimensional multiplanar sonography appears to be a promising technique in the local staging of cervical carcinoma.


Subject(s)
Uterine Cervical Neoplasms/diagnostic imaging , Adult , Aged , Feasibility Studies , Female , Humans , Imaging, Three-Dimensional/methods , Middle Aged , Neoplasm Invasiveness , Neoplasm Staging/methods , Rectal Neoplasms/diagnostic imaging , Rectal Neoplasms/pathology , Sensitivity and Specificity , Treatment Outcome , Ultrasonography , Urinary Bladder Neoplasms/diagnostic imaging , Urinary Bladder Neoplasms/pathology , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/therapy
15.
Minerva Ginecol ; 59(3): 299-310, 2007 Jun.
Article in English | MEDLINE | ID: mdl-17576406

ABSTRACT

Contraception is a crucial human right for its role on health, development and quality of life. Since the introduction of hormonal female contraception the burden of family planning has fallen mostly on women. The few methods of family planning available for men--namely condoms, vasectomy, periodic abstinence and withdrawal--are hundred year old in concept, are based on preindustrial practices and have low efficacy or are difficult to reverse. In spite of the shortcomings of currently available male contraceptives, 1/3 of the couples that use contraception worldwide rely on male methods suggesting that development of a safe, effective, reversible and affordable contraceptive method for men would meet a critical need. Recent surveys have shown that men want to know more about reproductive health and want to support their partner more actively. In recent decades, there have been exceptional advances in the development of safer and more effective contraceptives. Currently, several methods of contraception for men are under development. This paper summarises the efforts performed over the past decades to develop an effective, safe and reversible male contraceptive.


Subject(s)
Contraception/methods , Coitus Interruptus , Condoms , Contraception/trends , Contraceptive Agents, Male/pharmacology , Contraceptive Agents, Male/therapeutic use , Drug Therapy, Combination , Family Planning Services/trends , Gossypol/therapeutic use , Humans , Male , Natural Family Planning Methods , Norethindrone/analogs & derivatives , Norethindrone/therapeutic use , Oligospermia/chemically induced , Sterilization, Reproductive , Testosterone/analogs & derivatives , Testosterone/therapeutic use , Treatment Outcome , Vasectomy
16.
J Endocrinol Invest ; 28(3): 241-6, 2005 Mar.
Article in English | MEDLINE | ID: mdl-15952409

ABSTRACT

The aim of this study was to evaluate the effect of selective and short-term sex hormone modifications on ghrelin levels in normal-weight eugonadal men undergoing hormonal contraceptive treatments. Seven men received an oral progestin [cyproterone acetate (CPA) or dienogest (DNG)] 10 mg/day for 3 weeks (CPA-DNG group), 7 CPA orally 5 mg/day in association with testosterone enanthate (TE) im 200 mg/week for 8 weeks (CPA-TE group), and 7 placebo (PLAC) for 8 weeks (PLAC group). Anthropometry and blood levels of LH, FSH, testosterone, estradiol, glucose, insulin and total ghrelin were evaluated. At baseline, no parameters differed among the three groups. After treatment, LH and FSH decreased in both CPA-DNG and CPA-TE groups, whereas they did not change in the PLAC group. Testosterone and estradiol decreased in the CPA-DNG group to the hypogonadal range, increased in the CPA-TE group to supraphysiological concentrations and, as expected, remained unchanged in the PLAC group. Total ghrelin levels increased in the CPA-DNG, decreased in the CPA-TE and did not change in the PLAC group. Ns modifications in the other parameters were observed in any group, demonstrating that the short-term changes of circulating sex hormones are able to modify ghrelin levels. These data, therefore, suggest that sex steroids are important regulators of ghrelin in normal-weight healthy men too.


Subject(s)
Gonadal Steroid Hormones/blood , Nandrolone/analogs & derivatives , Peptide Hormones/blood , Testosterone/analogs & derivatives , Adult , Androgens/blood , Anthropometry , Blood Pressure/physiology , Body Weight/physiology , Contraceptive Agents, Male/pharmacology , Contraceptives, Oral, Hormonal/pharmacology , Cyproterone Acetate/pharmacology , Estradiol/blood , Ghrelin , Humans , Male , Middle Aged , Nandrolone/pharmacology , Testosterone/pharmacology
17.
J Clin Endocrinol Metab ; 90(4): 2005-14, 2005 Apr.
Article in English | MEDLINE | ID: mdl-15634716

ABSTRACT

The goal of this study was to find the most favorable injection interval of norethisterone enanthate (NETE) plus testosterone undecanoate (TU) in terms of gonadotropin, sperm suppression, and prostatic effects. Fifty normal men were randomly assigned to receive NETE 200 mg plus TU 1000 mg every 8 wk (n = 10), every 12 wk (n = 10), every 6 wk for 12 wk and then every 12 wk (n = 10), and every 6 wk for 12 wk and thereafter TU 1000 mg plus placebo every 12 wk (n = 10), and placebo plus placebo every 6 wk for 12 wk and then every 12 wk (n = 10) for 48 wk. Semen analyses, blood drawings, physical examinations, and prostate ultrasounds were performed throughout the study. Of the men in the 8-wk injection group, 90% (nine of 10) achieved azoospermia, compared with 37.5% (three of eight) in the 12-wk injection group (P = 0.019). TU plus placebo injected every 12 wk did not maintain sperm suppression. Prostate volumes did not change significantly in either group. In conclusion, these data suggest that the combined administration of NETE and TU at 8-wk intervals represents an effective hormonal contraceptive regimen.


Subject(s)
Contraception , Norethindrone/analogs & derivatives , Norethindrone/administration & dosage , Prostate/drug effects , Spermatogenesis/drug effects , Testis/drug effects , Testosterone/analogs & derivatives , Testosterone/administration & dosage , Adolescent , Adult , Drug Combinations , Follicle Stimulating Hormone/blood , Humans , Injections , Luteinizing Hormone/blood , Male , Middle Aged , Prospective Studies , Sperm Count , Testosterone/blood
18.
J Clin Endocrinol Metab ; 88(12): 5818-26, 2003 Dec.
Article in English | MEDLINE | ID: mdl-14671175

ABSTRACT

In this study we evaluated whether testosterone undecanoate (TU), alone or combined with low dose cyproterone acetate (CPA), can maintain spermatogenic suppression induced by higher doses of CPA plus TU. Twenty-four men received for 12 wk 20 mg/d CPA plus 1000 mg/6 wk TU and then 1000 mg/8 wk TU plus 20 mg/d CPA (n = 8), 2 mg/d CPA (n = 8), or plus placebo (n = 8) for 32 wk. Blood samples, physical examinations, hormones, chemistry, hematology, semen analysis, and sexual/behavioral assessments were performed throughout the study. Sperm counts decreased to less than 1 million/ml in all subjects by wk 12, and 54% of them achieved azoospermia. Suppression of sperm counts was maintained until wk 44. Serum LH and FSH levels were suppressed by wk 12 of hormone administration and remained suppressed until wk 44. No significant changes in any biochemical parameters were detected at wk 44 in any group. There was a slight increase in total prostate volume to within the normal range at wk 44 that returned to baseline 1 yr after stopping hormone administration. In conclusion, TU alone or combined with lower doses of CPA maintains sperm suppression induced by higher dose CPA plus TU for 32 wk. This prototype regimen represents a promising male contraceptive regimen.


Subject(s)
Contraceptive Agents, Male/pharmacology , Cyproterone Acetate/pharmacology , Spermatogenesis/drug effects , Testosterone/analogs & derivatives , Testosterone/pharmacology , Adult , Contraceptive Agents, Male/administration & dosage , Cyproterone Acetate/administration & dosage , Dose-Response Relationship, Drug , Drug Synergism , Follicle Stimulating Hormone/antagonists & inhibitors , Follicle Stimulating Hormone/blood , Humans , Luteinizing Hormone/antagonists & inhibitors , Luteinizing Hormone/blood , Male , Reference Values , Single-Blind Method , Sperm Count , Time Factors
19.
Contraception ; 65(4): 269-72, 2002 Apr.
Article in English | MEDLINE | ID: mdl-12020775

ABSTRACT

Hormones inhibit fertility in men by suppressing sperm production. Testosterone-enanthate induced azoospermia has proven to provide optimal contraceptive protection. Preliminary studies have shown that testosterone alone or androgen-progestin combinations induce profound sperm suppression in the Eastern and white populations, respectively. Thus, these regimens may represent viable options for male contraception. New long-acting androgen formulations represent a major advancement in this field, allowing for the development of more acceptable and effective regimens.


Subject(s)
Contraceptive Agents, Male , Androgens/administration & dosage , Antispermatogenic Agents/administration & dosage , Clinical Trials as Topic , Contraceptive Agents, Male/administration & dosage , Contraceptive Agents, Male/adverse effects , Humans , Male , Progestins/administration & dosage , Spermatogenesis/drug effects , Testosterone/administration & dosage
20.
Hum Reprod ; 13(5): 1225-9, 1998 May.
Article in English | MEDLINE | ID: mdl-9647551

ABSTRACT

After a control phase, 10 normal men received cyproterone acetate (CPA) at a dose of 25 mg/day (CPA-25; n=5) or 12.5 mg/day (CPA-12.5; n=5) plus testosterone enanthate (TE) 100 mg/week, for 16 weeks. Throughout the study sperm counts were performed every 2 weeks, and luteinizing hormone (LH), follicle stimulating hormone (FSH), testosterone, biochemical and haematological tests were performed every 4 weeks. All five men in group CPA-25 and three men in group CPA-12.5 achieved azoospermia. One man in group CPA-25 was azoospermic by week 12 of hormone administration, but had a sperm count of 0.1 x 10(6)/ml at week 16. Time to azoospermia was 9.0+/-1.3 and 8.7+/-0.7 weeks in groups CPA-25 and CPA-12.5 respectively. Gonadotrophins were decreased by week 4 of hormone administration, remained around the minimum detectability of the assay for the duration of hormone administration and returned to baseline after stopping hormone administration. Testosterone values did not change. No change in any biochemical parameters was found. Haematological parameters were decreased at week 16 of hormone administration and returned to baseline after stopping hormone administration. In conclusion, these results suggest that an hormonal regimen consisting of testosterone plus a progestin with anti-androgenic properties holds promise as an effective, safe and reversible male contraceptive.


PIP: Previous research conducted by the authors demonstrated that the administration of testosterone together with high doses of the progestin cyproterone acetate (CPA) effectively suppresses spermatogenesis without adverse effects. The present study investigated the effectiveness of lower doses of CPA than those administered previously on spermatogenesis, gonadotropins, and metabolic and hematologic parameters. 10 healthy US men received CPA at a dose of 25 mg/day (CPA-25) or 12.5 mg/day (CPA-12.5) plus 100 mg of testosterone enanthate per week for 16 weeks. All 5 men who received CPA-25 and 3 of the 5 men given CPA-12.5 achieved azoospermia. The mean time to azoospermia in the two groups was 9.0 +or- 1.3 weeks and 8.7 +or- 0.7 weeks, respectively. Gonadotropins were decreased by week 4 of hormone administration, remained around the minimum of detectability of the assay for the remainder of the study period, and returned to baseline when hormone administration ceased. There was no change in testosterone values or any biochemical parameters. Hematologic parameters were decreased at week 16, but returned to baseline at the end of the study period. These findings attest that a hormonal regimen consisting of testosterone together with a progestin with anti-androgenic properties holds promise as an effective, safe, and reversible male contraceptive.


Subject(s)
Contraceptive Agents, Male/administration & dosage , Cyproterone Acetate/administration & dosage , Testosterone/analogs & derivatives , Adult , Contraceptive Agents, Male/adverse effects , Cyproterone Acetate/adverse effects , Follicle Stimulating Hormone/blood , Hematocrit , Hemoglobins/metabolism , Humans , Lipids/blood , Luteinizing Hormone/blood , Male , Oligospermia/chemically induced , Safety , Sperm Count , Spermatogenesis/drug effects , Testis/drug effects , Testis/pathology , Testosterone/administration & dosage , Testosterone/adverse effects , Testosterone/blood , Time Factors
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