Contribution of androgen receptor sensitivity to the relation between testosterone and sexual desire: An exploration in male-to-female transsexuals

Evaluation of Sexual Function of Transgender Individuals

PURPOSE

The current study sought to evaluate the sexual function of transgender men and women and to identify associated factors.

METHODS

Trans individuals who were outpatients at our gender incongruence (GI) center for follow-up of gender-affirming hormone therapy with age ranging 27 to 50 years were invited to participate in this cross-sectional study. Clinical data were collected from the medical records. Two scales, the Female Sexual Function Index (FSFI) and the Male Sexual Function Index (MSFI), were administered to all females (n = 50) and all males (n = 58). Each participant also responded to a semi-structured questionnaire that assessed feelings regarding being transgender and satisfaction with sexual life.

RESULTS

Relative to trans women, trans men had a higher total FSFI score, and higher scores in the FSFI domains of arousal, lubrication, orgasm, and satisfaction (all p < 0.01), and in the total MSFI score, and higher scores in the MFSI domains of arousal, erection, orgasm, and satisfaction (all p < 0.01). A separate semi-structured evaluation indicated that more than half of the trans men and almost half of the trans women were satisfied or very satisfied with their sexual life.

CONCLUSIONS

The total scores from the FSFI and MSFI indicated a high risk of sexual dysfunction in trans men and especially, in trans women. However, the semi-structured evaluation showed that more than half of the trans men and almost half of the trans women were satisfied with their sexual life.

Sexual function of transgender assigned female at birth seeking gender affirming care: a narrative review

Sexual health is pivotal to the overall health and well-being of individuals. To date, transgender persons' sexual function results to be poorly investigated. Gender affirming medical and/or surgical treatments (GAMSTs) in transgender assigned female at birth (t-AFAB) can have an impact on overall quality of life and subsequently on sexual life. Before GAMSTs, literature shows a low sexual wellbeing of t-AFAB due to a complex interaction of organic and psychological factors. During gender affirming hormone therapy, testosterone treatments induce virilization that results in a better sexual satisfaction, in particular for sexual desire, arousal and orgasm. The majority of the available literature reports an increased sexual quality of life among t-AFAB after gender affirming surgery. Nevertheless, the different surgical techniques, the possible post-operative complications and sexual pain can negatively influence sexual function. Thus, this narrative review aims to summarize the available data about modifications on sexual health status in t-AFAB before and after GAMSTs. In transgender population, dealing with the evaluation of sexual life and satisfaction represents a relevant topic with a view to promote and sustain not only sexual wellbeing but especially general quality of life.

The assessment of sexual wellbeing in treatment-seeking transgender individuals: a systematic review of the medical literature

Sexual-wellbeing is recognized as an important aspect of quality-of-life. Yet, no overview exists of which aspects of sexual-wellbeing have been assessed in trans individuals seeking or undergoing medical treatment, nor is it clear what tools are used to evaluate the effect of medical treatment on sexual-wellbeing. First, to identify which topics pertaining to sexual-wellbeing have been assessed in transgender individuals in a medical context. Second, to determine which tools have been used for measuring aspects of sexual-wellbeing. A conceptual framework of sexual-wellbeing, was used as reference. A literature search (in PubMed, Embase, Cochrane Library) was performed up to March 10th, 2020. Studies that assessed aspects of sexual-wellbeing in transgender individuals' medical context were included in this review. Specific sexual topics addressed in each study were extracted by two independent reviewers. Thematic analysis was performed to identify sexual themes. Additionally, tools used to measure topics related to sexuality in transgender individuals were identified. In 172 papers, a total of 178 topics related to sexual-wellbeing were identified. Ten overarching themes were identified; sexuality, enacted sexual script, sexual activities, sexual relations, sexual response cycle, genital function, sexual function, sexual pleasure, sexual satisfaction, and quality-of-sex-life. Functional aspects of sexuality are assessed most frequently. A variety of methods was used to evaluate aspects related to sexual-wellbeing in trans individuals and over 50 different tools were identified. Self-developed questionnaires were used most frequently (n = 80), followed by chart reviews (n = 50), self-developed structured interviews (n = 37) and physical examination (n = 13). 23 previously developed questionnaires were used, all of which were developed for a cisgender population. Many studies in trans individuals touch on topics related to sexual-wellbeing, however, a comprehensive conceptualisation of (10 themes of) sexual-wellbeing is still lacking. Still, no valid tool exists for assessing sexual-wellbeing in the trans population, but is much needed.

Sexual function of transgender women after gender affirming surgery: A mini review

A transgender person has a gender identity opposite to the sex assigned at birth. Transgender individuals may have altered sexual function (SF) due to psychosocial factors related to body image distortion, shame, and dissatisfaction with genital appearance, and these conditions can increase the risk of sexual dysfunction. This study aimed to characterize the SF of trans-women after gender affirming surgery (GAS). We reviewed the Pubmed database for studies published between January 2008 and December 2021. 17 studies were included, four were cross-sectional studies, one prospective study, four prospective cohort studies, five retrospective studies. The instruments used to evaluate the SF were female sexual function index, semistructured questionnaires, patients' opinion, Sexual Desire Inventory, Maudsley Marital Questionnaire-S, WHOQOL-100. The results of our review indicate there is weak evidence that GAS improves the SF of trans-women. We thus recommend that future studies use questionnaires that are validated for the assessment of the SF of trans-women to better determine the impact of genital surgery in this population.

ESSM Position Statement "Sexual Wellbeing After Gender Affirming Surgery"

INTRODUCTION

Much has been published on the surgical and functional results following Gender Affirming Surgery ('GAS') in trans individuals. Comprehensive results regarding sexual wellbeing following GAS, however, are generally lacking.

AIM

To review the impact of various GAS on sexual wellbeing in treatment seeking trans individuals, and provide a comprehensive list of clinical recommendations regarding the various surgical options of GAS on behalf of the European Society for Sexual Medicine.

METHODS

The Medline, Cochrane Library and Embase databases were reviewed on the results of sexual wellbeing after GAS.

MAIN OUTCOMES MEASURE

The task force established consensus statements regarding the somatic and general requirements before GAS and of GAS: orchiectomy-only, vaginoplasty, breast augmentation, vocal feminization surgery, facial feminization surgery, mastectomy, removal of the female sexual organs, metaidoioplasty, and phalloplasty. Outcomes pertaining to sexual wellbeing- sexual satisfaction, sexual relationship, sexual response, sexual activity, enacted sexual script, sexuality, sexual function, genital function, quality of sex life and sexual pleasure- are provided for each statement separately.

RESULTS

The present position paper provides clinicians with statements and recommendations for clinical practice, regarding GAS and their effects on sexual wellbeing in trans individuals. These data, are limited and may not be sufficient to make evidence-based recommendations for every surgical option. Findings regarding sexual wellbeing following GAS were mainly positive. There was no data on sexual wellbeing following orchiectomy-only, vocal feminization surgery, facial feminization surgery or the removal of the female sexual organs. The choice for GAS is dependent on patient preference, anatomy and health status, and the surgeon's skills. Trans individuals may benefit from studies focusing exclusively on the effects of GAS on sexual wellbeing.

CONCLUSION

The available evidence suggests positive results regarding sexual wellbeing following GAS. We advise more studies that underline the evidence regarding sexual wellbeing following GAS. This position statement may aid both clinicians and patients in decision-making process regarding the choice for GAS. Özer M, Toulabi SP, Fisher AD, et al. ESSM Position Statement "Sexual Wellbeing After Gender Affirming Surgery". Sex Med 2022;10:100471.

The Role of Emotion Projection, Sexual Desire, and Self-Rated Attractiveness in the Sexual Overperception Bias

A consistent finding in the literature is that men overperceive sexual interest in women (i.e., sexual overperception bias). Several potential mechanisms have been proposed for this bias, including projecting one's own interest onto a given partner, sexual desire, and self-rated attractiveness. Here, we examined the influence of these factors in attraction detection accuracy during speed-dates. Sixty-seven participants (34 women) split in four groups went on a total of 10 speed-dates with all opposite-sex members of their group, resulting in 277 dates. The results showed that attraction detection accuracy was reliably predicted by projection of own interest in combination with participant sex. Specifically, men were more accurate than women in detecting attraction when they were not interested in their partner compared to when they were interested. These results are discussed in the wider context of arousal influencing detection of partner attraction.

Androgen receptor gene polymorphism and sexual function in midlife women

PURPOSE

To assess the impact of serum androgen levels and androgen receptor CAG polymorphism on sexual function in 45 healthy midlife women living in a heterosexual relationship.

METHODS

Cross-sectional study [Cantonal Ethics Committee Bern (Ref.-Nr.

KEK-BE

087/13)].

MAIN OUTCOME MEASURES

Association between androgen serum levels, androgen receptor CAG polymorphism and sexual function was assessed by the FSFI-d questionnaire.

RESULTS

In our cohort of healthy, midlife, well-educated, middle-class, mostly postmenopausal women living in a heterosexual satisfying partnership, sexual function was perceived to remain stable or to decline during menopausal transition with sexual desire scoring lowest (FSFI-d 3.3 ± 0.9). Androgen serum levels did not correlate with sexual function. Mean CAG repeat number was 21.6 ± 1.9. There was a highly inverse though non-significant correlation between female sexual function and AR CAG repeat polymorphism with specifically higher numbers of CAG repeats being significantly positively correlated to more frequent or more severe pain during or after sexual intercourse.

CONCLUSION

The AR polymorphism is a non-negligible factor in female sexual function. Future studies on female sexual (dys)function should incorporate its assessment.

Molecular basis of androgen action on human sexual desire

Reproduction is a fundamental process for the species maintenance and the propagation of genetic information. The energy expenditure for mating is overtaken by motivational stimuli, such as orgasm, finely regulated by steroid hormones, gonadotropins, neurotransmitters and molecules acting in the brain and peripheral organs. These functions are often investigated using animal models and translated to humans, where the androgens action is mediated by nuclear and membrane receptors converging in the regulation of both long-term genomic and rapid non-genomic signals. In both sexes, testosterone is a central player of this game and is involved in the regulation of sexual desire and arousal, and, finally, in reproduction through cognitive and peripheral physiological mechanisms which may decline with aging and circadian disruption. Finally, genetic variations impact on reproductive behaviours, resulting in sex-specific effect and different reproductive strategies. In this review, androgen actions on sexual desire are evaluated, focusing on the molecular levels of interaction.

Sexual and Romantic Experiences of Transgender Youth Before Gender-Affirmative Treatment

OBJECTIVE

In various Western countries early medical gender-affirmative treatment has become increasingly available for transgender adolescents. Research conducted before the start of medical gender-affirming treatment has focused on psychological and social functioning, and knowledge about the sexual health of this specific young group is lacking.

METHODS

Gender identity clinics referred 137 adolescents: 60 transgirls (birth-assigned boys, mean age 14.11 years, SD 2.21) and 77 transboys (birth assigned girls, mean age 15.14 years, SD 2.09; P = .05). A questionnaire on sexual experiences (kissing, petting while undressed, sexual intercourse), romantic experiences (falling in love, romantic relationships), sexual orientation, negative sexual experiences, and sexual satisfaction was administered. Experiences of the transgender adolescents were compared with data for same-aged youth of a Dutch general population study (N = 8520).

RESULTS

Of the transgender adolescents, 77% had fallen in love, 50% had had a romantic relationship, 26% had experienced petting while undressed, and 5% had had sexual intercourse. Transboys had more sexual experience than transgirls. In comparison with the general population, transgender adolescents were both sexually and romantically less experienced.

CONCLUSIONS

Despite challenges, transgender adolescent are sexually active, although to a lesser extent than their peers from the general population.