Bone health in transgender people: a narrative review

No Bones About It: Sex Is Binary

Anthropologists have led the way in formulating techniques that reveal skeletal differences between males and females. Understanding of physical differences in the pelvis related to childbirth, hormonal impacts on bones, and extensive comparative studies have provided anthropologists with an array of traits and measurements that help them estimate sex using just bones. Forensic anthropologists and bioarcheologists are improving their ability to differentiate males and females by increasing research on a variety of postcranial bones and through the use of molecular data, especially new methods called proteomics, to identify sex in prepubescent juveniles. As remains from more cultures and time periods are studied, sex identification will continue to improve, because skeletal sex differences are in large part biologically determined. Yet, anthropologists have also been at the forefront of arguing that sex lies on a spectrum. Anthropologists who view sex as on a spectrum may deter sex identification progress; from their perspective, an individual of an undetermined sex may just be a nonbinary individual. Anthropologists who consider sex is on a spectrum are coming to this conclusion in part because they are looking for anatomical ideals, mistaking pathology for variation, and confusing independent variables with dependent variables. Nonetheless, anthropologists need to continue to improve sex identification techniques to reconstruct the past accurately, which may reveal less strict sex roles than previously presumed and help with the identification of crime victims. Forensic anthropologists should also increase their efforts to identify whether individuals have undergone medical procedures intended to change one's gender due to the current rise in transitioning individuals.

Primary Care and Health Care of Transgender and Gender-Diverse Older Adults

Clinicians working with older transgender and gender-diverse (TGD) individuals need to acquire the necessary knowledge and skills to provide care that is high quality and culturally appropriate. This includes supporting patients in their exploration of gender and attainment of gender-affirming medical interventions. Clinicians should strive to create environments that are inclusive and safe, and that will facilitate health care access and build constructive provider-patient relationships. Clinicians should be aware of best practices, including that age-appropriate health screenings should be anatomy based, and ensure that TGD older adults on gender-affirming hormone therapy (GAHT) receive ongoing laboratory monitoring and physical assessments, including serum hormone levels and biomarkers. Older TGD adults underutilize advance care planning, and need individualized assessments that consider their unique family structures, social support, and financial situation. End-of-life care services should ensure that TGD individuals are treated with dignity and respect.

The Utility of Preclinical Models in Understanding the Bone Health of Transgender Individuals Undergoing Gender-Affirming Hormone Therapy

PURPOSE OF REVIEW

To summarise the evidence regarding the effects of gender-affirming hormone therapy (GAHT) on bone health in transgender people, to identify key knowledge gaps and how these gaps can be addressed using preclinical rodent models.

RECENT FINDINGS

Sex hormones play a critical role in bone physiology, yet there is a paucity of research regarding the effects of GAHT on bone microstructure and fracture risk in transgender individuals. The controlled clinical studies required to yield fracture data are unethical to conduct making clinically translatable preclinical research of the utmost importance. Novel genetic and surgical preclinical models have yielded significant mechanistic insight into the roles of sex steroids on skeletal integrity. Preclinical models of GAHT have the potential inform clinical approaches to preserve skeletal integrity and prevent fractures in transgender people undergoing GAHT. This review highlights the key considerations required to ensure the information gained from preclinical models of GAHT are informative.

Bone Health in the Transgender Population

» Transgender women are more susceptible to low bone mineral density (BMD) before initiating gender-affirming hormone therapy (GAHT), and while bone density initially improves with GAHT, it gradually declines while still remaining above baseline. Transgender women older than 50 years have a comparable fracture risk as age-matched cisgender women. Transgender men typically have normal or increased BMD before initiating and while receiving GAHT and are not at increased risk of fractures.» Transgender youth who receive puberty-blocking medications experience either no change or a slight decrease in BMD that returns to baseline after initiating GAHT.» It is important to abide by the International Society for Clinical Densitometry guidelines whenever ordering, performing, or reading a BMD scan for a gender-diverse patient.» There are no specific guidelines concerning vitamin D and calcium supplementation or the use of bisphosphonates in the transgender population, so the current recommendation is to abide by the guidelines for cisgender individuals.

Transgender and gender-diverse youth: an update on standard medical treatments for gender dysphoria and the sociopolitical climate

PURPOSE OF REVIEW

Transgender and gender-diverse (TGD) youth experience a discordance between their binary sex assigned at birth and gender identity. All TGD youth benefit from compassionate care delivered by clinicians who are informed in matters of gender diversity. Some of TGD youth experience clinically significant distress, termed gender dysphoria (GD), and may benefit from additional psychological support and medical treatments. Discrimination and stigma fuel minority stress in TGD youth and thus many struggle with mental health and psychosocial functioning. This review summarizes the current state of research on TGD youth and essential medical treatments for gender dysphoria. These concepts are highly relevant in the current sociopolitical climate. Pediatric providers of all disciplines are stakeholders in the care of TGD youth and should be aware of updates in this field.

RECENT FINDINGS

Children who express gender-diverse identities continue to express these identities into adolescence. Medical treatments for GD have a positive effect on mental health, suicidality, psychosocial functioning, and body satisfaction. The overwhelming majority of TGD youth with gender dysphoria who receive medical aspects of gender affirming care continue these treatments into early adulthood. Political targeting and legal interference into social inclusion for TGD youth and medical treatments for GD are rooted in scientific misinformation and have negative impacts on their well being.

SUMMARY

All youth-serving health professionals are likely to care for TGD youth. To provide optimal care, these professionals should remain apprised of best practices and understand basic principles of medical treatments for GD.

Gender-affirming hormone therapy, mental health, and surgical considerations for aging transgender and gender diverse adults

As the transgender and gender diverse (TGD) population ages, more transfeminine and transmasculine individuals present to clinic to initiate or continue their gender-affirming care at older ages. Currently available guidelines on gender-affirming care are excellent resources for the provision of gender-affirming hormone therapy (GAHT), primary care, surgery, and mental health care but are limited in their scope as to whether recommendations require tailoring to older TGD adults. Data that inform guideline-recommended management considerations, while informative and increasingly evidence-based, mainly come from studies of younger TGD populations. Whether results from these studies, and therefore recommendations, can or should be extrapolated to aging TGD adults remains to be determined. In this perspective review, we acknowledge the lack of data in older TGD adults and discuss considerations for evaluating cardiovascular disease, hormone-sensitive cancers, bone health and cognitive health, gender-affirming surgery, and mental health in the older TGD population on GAHT.