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1.
Am J Kidney Dis ; 84(2): 232-240, 2024 08.
Article in English | MEDLINE | ID: mdl-38458377

ABSTRACT

The most commonly used equations to estimate glomerular filtration rate incorporate a binary male-female sex coefficient, which has important implications for the care of transgender, gender-diverse, and nonbinary (TGD) people. Whether "sex assigned at birth" or a binary "gender identity" is most appropriate for the computation of estimated glomerular filtration rate (eGFR) is unknown. Furthermore, the use of gender-affirming hormone therapy (GAHT) for the development of physical changes to align TGD people with their affirmed gender is increasingly common, and may result in changes in serum creatinine and cystatin C, the biomarkers commonly used to estimate glomerular filtration rate. The paucity of current literature evaluating chronic kidney disease (CKD) prevalence and outcomes in TGD individuals on GAHT makes it difficult to assess any effects of GAHT on kidney function. Whether alterations in serum creatinine reflect changes in glomerular filtration rate or simply changes in muscle mass is unknown. Therefore, we propose a holistic framework to evaluate kidney function in TGD people. The framework focuses on kidney disease prevalence, risk factors, sex hormones, eGFR, other kidney function assessment tools, and the mitigation of health inequities in TGD people.


Subject(s)
Glomerular Filtration Rate , Humans , Male , Female , Renal Insufficiency, Chronic/epidemiology , Renal Insufficiency, Chronic/physiopathology , Renal Insufficiency, Chronic/diagnosis , Kidney Function Tests/methods , Transgender Persons , Creatinine/blood , Holistic Health
2.
J Clin Endocrinol Metab ; 108(2): 331-338, 2023 01 17.
Article in English | MEDLINE | ID: mdl-36201493

ABSTRACT

BACKGROUND: Initiating feminizing gender-affirming hormone therapy (GAHT) in transgender women causes a steep decline in serum testosterone. It is unknown if testosterone concentrations change further and whether adrenal androgen levels change during feminizing GAHT and after gonadectomy. This limits clinical decision making in transgender women with symptoms attributed to GAHT or gonadectomy. METHODS: Transgender women (n = 275) initiating estradiol and cyproterone acetate (CPA) were included at baseline, and had follow-up visits after 3 months, 12 months, and 2 to 4 years. During follow-up, 49.5% of transgender women underwent a gonadectomy. Total testosterone (TT), dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEAS), and androstenedione (A4) were measured using liquid chromatography tandem mass spectrometry. RESULTS: After 3 months of GAHT, mean TT, calculated free testosterone (cFT), and A4 decreased by 18.4 nmol/L (95% CI, -19.4 to -17.4, P < 0.001 [ie, -97.1%]), 383 pmol/L (95% CI, -405 to -362, P < 0.001 [ie, -98.3%]), and 1.2 nmol/L (95% CI, -1.4 to -1.0, P < 0.001 [ie, -36.5%]), respectively, and remained stable thereafter. DHEA and DHEAS decreased by 7.4 nmol/L (95% CI, -9.7 to -5.1 [ie, -28.0%]) and 1.8 µmol/L (95% CI, -2.2 to -1.4 [ie, -20.1%]), respectively, after 1 year and did not change thereafter. After gonadectomy, CPA therapy is stopped, which induced no further change in TT, cFT, DHEA, DHEAS, and A4 compared with those who did not undergo gonadectomy. CONCLUSIONS: Our findings confirm that after an initial drop, testosterone levels in transgender women remain stable. Adrenal androgens decrease in the first year of CPA and estrogen supplementation and remain unchanged after gonadectomy. Androgens did not change after gonadectomy and cessation of CPA. Correlates with clinical symptoms remain to be elucidated.


Subject(s)
Androgens , Transgender Persons , Female , Humans , Testosterone , Androstenedione , Cyproterone Acetate/therapeutic use , Dehydroepiandrosterone , Dehydroepiandrosterone Sulfate
3.
Transl Androl Urol ; 9(6): 2771-2785, 2020 Dec.
Article in English | MEDLINE | ID: mdl-33457249

ABSTRACT

Over the last 50 years cancer mortality has decreased, the biggest contributor to this decrease has been the widespread adoption of cancer screening protocols. These guidelines are based on large population studies, which often do not capture the non-gender conforming portion of the population. The aim of this review is to cover current guidelines and practice patterns of cancer screening in transgender patients, and, where evidence-based data is lacking, to draw from cis-gender screening guidelines to suggest best-practice screening approaches for transgender patients. We performed a systematic search of PubMed, Google Scholar and Medline, using all iterations of the follow search terms: transgender, gender non-conforming, gender non-binary, cancer screening, breast cancer, ovarian cancer, uterine cancer, cervical cancer, prostate cancer, colorectal cancer, anal cancer, and all acceptable abbreviations. Given the limited amount of existing literature inclusion was broad. After eliminating duplicates and abstract, all queries yielded 85 unique publications. There are currently very few transgender specific cancer screening recommendations. All the guidelines discussed in this manuscript were designed for cis-gender patients and applied to the transgender community based on small case series. Currently, there is not sufficient to evidence to determine the long-term effects of gender-affirming hormone therapy on an individual's cancer risk. Established guidelines for cisgender individuals and can reasonably followed for transgender patients based on what organs remain in situ. In the future comprehensive cancer screening and prevention initiatives centered on relevant anatomy and high-risk behaviors specific for transgender men and women are needed.

4.
J Midwifery Womens Health ; 64(3): 298-311, 2019 May.
Article in English | MEDLINE | ID: mdl-30957961

ABSTRACT

This article focuses on the provision of gender-affirming care and preventive care for transfeminine individuals-those assigned male at birth who identify as female or on the feminine spectrum. To meet the learning needs of health care providers less familiar with gender-affirming care, this article begins with an overview of gender identity concepts. Initiation and management of feminizing gender-affirming hormone therapy is then covered in detail, including common gender-affirming medications and their adverse effects, diagnostic criteria, psychosocial evaluation, initial physical examination and laboratory work, and recommendations for follow-up visits and laboratory monitoring. Lastly, the article briefly reviews health care of transfeminine individuals before and after surgical gender-affirming interventions and details best practices for transfeminine preventive care.


Subject(s)
Gender Dysphoria/drug therapy , Gender Dysphoria/nursing , Gender Identity , Hormone Replacement Therapy , Midwifery , Transgender Persons , Androgen Antagonists/therapeutic use , Estradiol/therapeutic use , Female , Gender Dysphoria/surgery , Humans , Male , Off-Label Use , Practice Guidelines as Topic , Preventive Medicine , Progesterone/therapeutic use , Speech Therapy
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