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Jasuja R, Pencina KM, Lawney B, Stephens-Shields AJ, Ellenberg SS, Snyder PJ, Bhasin S. Modulation of circulating free testosterone fraction by testosterone, dihydrotestosterone, and estradiol during testosterone replacement therapy. Andrology 2024. [PMID: 39092887 DOI: 10.1111/andr.13707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/26/2024] [Accepted: 07/06/2024] [Indexed: 08/04/2024]
Abstract
BACKGROUND Testosterone, estradiol, and dihydrotestosterone share common ligand binding sites on sex hormone binding globulin and albumin. It is unknown whether and how changes in testosterone, dihydrotestosterone, and estradiol concentrations during testosterone replacement therapy affect free testosterone fraction. OBJECTIVE To determine the effect of changes in testosterone, dihydrotestosterone, and estradiol concentrations on free testosterone fraction during testosterone replacement therapy of men with hypogonadism. METHODS Using data from the Testosterone Trials, we assessed the association of changes in total testosterone, estradiol, and dihydrotestosterone concentrations over 12 months of testosterone replacement therapy with changes in free testosterone fraction, measured using equilibrium dialysis. We used random forests to evaluate the associations of predicted mean changes in free testosterone fraction with changes in circulating concentrations of each hormone at low, mean, or high change in the other two hormones. RESULTS Testosterone replacement therapy not only increased total testosterone, dihydrotestosterone, estradiol, and free testosterone concentrations, but also the percent free testosterone, even though sex hormone binding globulin levels did not change. The predicted changes in free testosterone fraction during testosterone replacement therapy exhibited a non-linear relationship with changes in each of total testosterone, dihydrotestosterone, and estradiol concentrations. Greater increases in testosterone, dihydrotestosterone, and estradiol levels during testosterone replacement therapy were each associated with higher model-predicted percent free testosterone. Substantially smaller changes in molar concentrations of estradiol and dihydrotestosterone had a greater effect on percent free testosterone than those in testosterone. CONCLUSION During testosterone replacement therapy of men with hypogonadism, changes in testosterone, dihydrotestosterone, and estradiol concentrations each altered percent free testosterone non-linearly. Small changes in estradiol concentrations exerted much larger effect on the free testosterone fraction than testosterone and dihydrotestosterone, suggesting complex interactions of the three hormones with the binding proteins. Assessment of changes in free testosterone during testosterone replacement therapy should include consideration of changes in all three hormones.
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Affiliation(s)
- Ravi Jasuja
- Research Program in Men's Health: Aging and Metabolism, Boston Claude D. Pepper Older Americans Independence Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Karol M Pencina
- Research Program in Men's Health: Aging and Metabolism, Boston Claude D. Pepper Older Americans Independence Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Brian Lawney
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Alisa J Stephens-Shields
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Susan S Ellenberg
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Peter J Snyder
- Division of Endocrinology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Shalender Bhasin
- Research Program in Men's Health: Aging and Metabolism, Boston Claude D. Pepper Older Americans Independence Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Muir CA, Guttman-Jones M, Man EJ. Effects of gender affirming hormone treatment in transgender individuals - a retrospective cohort study. Endocrine 2024; 85:370-379. [PMID: 38386168 DOI: 10.1007/s12020-024-03736-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 02/06/2024] [Indexed: 02/23/2024]
Abstract
PURPOSE Gender affirming hormone treatment (GAHT) results in measurable changes to anthropomorphic, biochemical and hormonal variables that are important to patients and their health care professionals to guide treatment. This study sought to quantify changes which occur in response to initiation of GAHT. METHODS We performed a retrospective cohort study of outcomes in transgender and gender diverse (TGD) patients starting GAHT. The primary outcome was proportion of patients and time required to achieve optimal hormone levels after commencement of GAHT. Additional analyses were performed to assess whether clinical and biochemical factors were associated with likelihood of achieving target hormone levels. RESULTS 345 patients were included. Among 154 transmasculine individuals, 116 (75%) achieved a testosterone level >10 nmol/L during follow-up at a median of 4-months (IQR 4-9). No clinical or biochemical factors were significantly associated with likelihood of reaching therapeutic testosterone concentrations in transmen. Among 191 transfeminine individuals, 131 (72%) achieved a testosterone level <2.0 nmol/L during follow-up at a median of 4-months (IQR 3-9). Factors associated with increased likelihood of testosterone suppression were use of subdermal estradiol implants as well as cyproterone acetate as an androgen antagonist. Changes in differing directions were observed during repeated measures of lipids, liver function, and blood count between transmasculine and transfeminine individuals, reflecting the important effects of testosterone and estradiol on biochemical tests ordered as part of routine clinical care. CONCLUSION Most TGD patients achieve target testosterone levels within 9 months of GAHT initiation. Adverse effects of GAHT are rare, and are usually mild.
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Affiliation(s)
- Christopher A Muir
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia.
| | - Mihal Guttman-Jones
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
| | - Elspeth J Man
- School of Clinical Medicine, Faculty of Medicine and Health, University of New South Wales, Sydney, NSW, Australia
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3
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Cortez S, Moog D, Lewis C, Williams K, Herrick CJ, Fields ME, Gray T, Guo Z, Nicol G, Baranski T. Effectiveness and Safety of Different Estradiol Regimens in Transgender Females: A Randomized Controlled Trial. J Endocr Soc 2024; 8:bvae108. [PMID: 38962490 PMCID: PMC11220669 DOI: 10.1210/jendso/bvae108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Indexed: 07/05/2024] Open
Abstract
Background A goal of gender-affirming hormone therapy (GAHT) for transgender women is to use estradiol to suppress endogenous production of testosterone. However, the effects of different estradiol regimens and route of administration on testosterone suppression is unknown. This is the first open-label randomized trial comparing different GAHT regimens for optimal estradiol route and dosing. Objective To evaluate 1 month and 6 months testosterone suppression <50 ng/dL with pulsed (once- or twice-daily sublingual 17-beta estradiol) and continuous (transdermal 17-beta estradiol) GAHT. Methods This study was conducted at an outpatient adult transgender clinic. Thirty-nine transgender women undergoing initiation of GAHT were randomly assigned to receive either once-daily sublingual, twice-daily sublingual, or transdermal 17-beta estradiol. All participants received spironolactone as an antiandrogen. Doses were titrated at monthly intervals to achieve total testosterone suppression <50 ng/dL. Results Transdermal 17-beta estradiol resulted in more rapid suppression of total testosterone, lower estrone levels, with no differences in estradiol levels when compared to once-daily and twice-daily sublingual estradiol. Moreover, there was no difference in the mean estradiol dose between the once-daily and twice-daily sublingual 17-beta estradiol group. Conclusion Continuous exposure with transdermal 17-beta estradiol suppressed testosterone production more effectively and with lower overall estradiol doses relative to once or twice daily sublingual estradiol. Most transgender women achieved cisgender women testosterone levels within 2 months on 1 or 2 0.1 mg/24 hours estradiol patches. Given no difference between once- or twice-daily sublingual estradiol, pulsed 17-beta estradiol likely provides no benefit for testosterone suppression.
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Affiliation(s)
- Samuel Cortez
- Department of Pediatrics, Division of Endocrinology, Diabetes, and Metabolism, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Dominic Moog
- Washington University School of Medicine in St. Louis, St. Louis,, MO 63110, USA
| | - Christopher Lewis
- Department of Pediatrics, Division of Endocrinology, Diabetes, and Metabolism, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Kelley Williams
- Department of Medicine, Division of Endocrinology, Diabetes, and Lipid Metabolism, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Cynthia J Herrick
- Department of Medicine, Division of Endocrinology, Diabetes, and Lipid Metabolism, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
- Department of Surgery, Division of Public Health Sciences, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Melanie E Fields
- Department of Pediatrics, Division of Hematology/Oncology, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Teddi Gray
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Zhaohua Guo
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Ginger Nicol
- Department of Psychiatry, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
| | - Thomas Baranski
- Department of Medicine, Division of Endocrinology, Diabetes, and Lipid Metabolism, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA
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Patel R, Korenman S, Weimer A, Grock S. A Call for Updates to Hormone Therapy Guidelines for Gender-Diverse Adults Assigned Male at Birth. Cureus 2024; 16:e62262. [PMID: 39006737 PMCID: PMC11245323 DOI: 10.7759/cureus.62262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2024] [Indexed: 07/16/2024] Open
Abstract
Gender-affirming hormone therapy for assigned male at birth (AMAB) individuals with gender incongruence typically consists of estradiol with or without an anti-androgen to achieve physical changes and psychological benefits. However, prescribed hormone regimens vary considerably, and high-quality research in this area is extremely limited. Additional evidence-based research evaluating patient-reported outcome measures (PROMs) is needed to fill current knowledge gaps and create a personalized therapeutic approach for AMAB individuals. This editorial provides a critical description of current treatment options, discusses their variability, reviews some discrepancies in guideline-based dosing recommendations, and recommends areas for further study.
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Affiliation(s)
- Reema Patel
- Endocrinology, Diabetes and Metabolism, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, USA
- Endocrinology, Diabetes and Metabolism, University of California Los Angeles David Geffen School of Medicine, Los Angeles, USA
| | - Stanley Korenman
- Endocrinology, Diabetes and Metabolism, University of California Los Angeles David Geffen School of Medicine, Los Angeles, USA
| | - Amy Weimer
- General Internal Medicine, University of California Los Angeles David Geffen School of Medicine, Los Angeles, USA
| | - Shira Grock
- Endocrinology, Diabetes and Metabolism, University of California Los Angeles David Geffen School of Medicine, Los Angeles, USA
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5
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Gelles-Soto D, Ward D, Florio T, Kouzounis K, Salgado CJ. Maximizing surgical outcomes with gender affirming hormone therapy in gender affirmation surgery. J Clin Transl Endocrinol 2024; 36:100355. [PMID: 38881950 PMCID: PMC11179057 DOI: 10.1016/j.jcte.2024.100355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 05/15/2024] [Accepted: 05/28/2024] [Indexed: 06/18/2024] Open
Abstract
Gender Affirmation Surgery (GAS) is a super specialized subset within the field of plastic and reconstructive surgery (PRS) that is ever evolving and of increasing interest to the PRS community. It is a multifaceted process which, in addition to surgical therapy, involves mental health therapy and hormonal therapy. One rapidly emerging interest within GAS is the role that gender affirming hormone therapy (GAHT) plays in enhancing surgical outcomes. GAHT has been used adjunctively with GAS as a comprehensive therapy to ameliorate gender dysphoria. This literature review will examine the positive effects of GAHT on the surgical outcomes on GAS, as well as other important considerations prior to surgery. As such, the primary objective of this literature review is to evaluate and assess the current evidence concerning the efficacy and safety of GAHT, as it relates to Gender Affirmation Surgery procedures.
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Affiliation(s)
- Desha Gelles-Soto
- Constructive Surgery Associates, 1330 Coral Way, Suite 306, Miami, FL 33145, United States
| | - Danielle Ward
- Larkin Community Hospital - Palm Springs Campus, Plastic Surgery Division, 1475 W 49th Pl, Hialeah, FL 33012, United States
| | - Taylor Florio
- Larkin Community Hospital - Palm Springs Campus, Plastic Surgery Division, 1475 W 49th Pl, Hialeah, FL 33012, United States
| | | | - Christopher J Salgado
- Constructive Surgery Associates, 1330 Coral Way, Suite 306, Miami, FL 33145, United States
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McQueen P, Molina D, Pinos I, Krug S, Taylor AJ, LaFrano MR, Kane MA, Amengual J. Finasteride delays atherosclerosis progression in mice and is associated with a reduction in plasma cholesterol in men. J Lipid Res 2024; 65:100507. [PMID: 38272355 PMCID: PMC10899056 DOI: 10.1016/j.jlr.2024.100507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/27/2024] Open
Abstract
Finasteride is commonly prescribed to treat benign prostate hyperplasia and male-pattern baldness in cis men and, more recently, trans individuals. However, the effect of finasteride on cardiovascular disease remains elusive. We evaluated the role of finasteride on atherosclerosis using low-density lipoprotein (LDL) receptor-deficient (Ldlr-/-) mice. Next, we examined the relevance to humans by analyzing the data deposited between 2009 and 2016 in the National Health and Nutrition Examination Survey. We show that finasteride reduces total plasma cholesterol and delays the development of atherosclerosis in Ldlr-/- mice. Finasteride reduced monocytosis, monocyte recruitment to the lesion, macrophage lesion content, and necrotic core area, the latter of which is an indicator of plaque vulnerability in humans. RNA sequencing analysis revealed a downregulation of inflammatory pathways and an upregulation of bile acid metabolism, oxidative phosphorylation, and cholesterol pathways in the liver of mice taking finasteride. Men reporting the use of finasteride showed lower plasma levels of cholesterol and LDL-cholesterol than those not taking the drug. Our data unveil finasteride as a potential treatment to delay cardiovascular disease in people by improving the plasma lipid profile.
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Affiliation(s)
- Patrick McQueen
- Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Donald Molina
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Ivan Pinos
- Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Samuel Krug
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, USA
| | - Anna J Taylor
- Carver Metabolomics Core, Roy J. Carver Biotechnology Center, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Michael R LaFrano
- Carver Metabolomics Core, Roy J. Carver Biotechnology Center, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Maureen A Kane
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, USA
| | - Jaume Amengual
- Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL, USA; Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL, USA.
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7
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Yaish I, Gindis G, Greenman Y, Moshe Y, Arbiv M, Buch A, Sofer Y, Shefer G, Tordjman K. Sublingual Estradiol Offers No Apparent Advantage Over Combined Oral Estradiol and Cyproterone Acetate for Gender-Affirming Hormone Therapy of Treatment-Naive Trans Women: Results of a Prospective Pilot Study. Transgend Health 2023; 8:485-493. [PMID: 38130980 PMCID: PMC10732161 DOI: 10.1089/trgh.2023.0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Purpose Chronic gender-affirming hormone therapy (GAHT) with sublingual estradiol (SLE) has not been studied. We aimed to compare GAHT with SLE only, to combined oral (CO) estradiol and cyproterone acetate, in treatment-naive trans women. Methods Twenty-two trans women enrolled into either the CO arm or the SLE-only arm (0.5 mg four times daily) in this 6-month prospective study. Anthropometric and laboratory variables were collected at baseline and 3 and 6 months. At the study beginning and end, body composition was measured by dual-energy X-ray absorptiometry and bioelectrical impedance, and gender dysphoria, sexual desire, and function were assessed by validated questionnaires. Results Subjects in the SLE were older, 26.3±5.8 years versus 20.1±2.3 years, p=0.006. All anthropometric, body composition, and laboratory variables were identical at baseline. Although dysphoria appeared greater, and sexual function lower at baseline in the CO group, this canceled out after age adjustment. Both treatments induced similar biochemical and hormonal changes. Creatinine, hemoglobin and cholesterol decreased significantly, while testosterone was suppressed to the same level in both groups: 3.22 [1.47-5.0] nmol/L in the SLE group and 2.41 [0.55-8.5] nmol/L in the CO, p=0.65. Significant changes in body composition toward a more feminine body were noted in both groups. Dysphoria did not significantly improve in either group, while sexual desire and function decreased at six months in both, p<0.001. Conclusions Both treatments achieved similar clinical changes. At this stage, SLE, which repeatedly induces alarming excursions of serum estradiol throughout the day, appears to offer no advantage over the CO approach.
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Affiliation(s)
- Iris Yaish
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Guy Gindis
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Yona Greenman
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Yaffa Moshe
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Mira Arbiv
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Assaf Buch
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Yael Sofer
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Gabi Shefer
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Karen Tordjman
- Institute of Endocrinology, Metabolism, and Hypertension, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
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8
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Momb BA, Szabo GK, Mogus JP, Chipkin SR, Vandenberg LN, Miller MS. Skeletal Muscle Function Is Altered in Male Mice on Low-Dose Androgen Receptor Antagonist or Estrogen Receptor Agonist. Endocrinology 2023; 164:bqad132. [PMID: 37633264 DOI: 10.1210/endocr/bqad132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023]
Abstract
In males, skeletal muscle function may be altered by shifts in either circulating testosterone or estrogen. We examined the effect of acute (2-week) exposures to 17α-ethinyl estradiol (EE2), an estrogen receptor (ER) agonist, or flutamide, an androgen receptor (AR) antagonist, on the contractile function of individual skeletal muscle fibers from slow-contracting soleus and fast-contracting extensor digitorum longus muscles from adult male mice. Single fiber specific tension (force divided by cross-sectional area) was decreased with flutamide treatment in all myosin heavy chain (MHC) fiber types examined (I, IIA, and IIB); similar effects were observed with EE2 treatment but only in the fastest-contracting MHC IIB fibers. The decreases in maximally Ca2+-activated specific tension were primarily a result of fewer strongly bound myosin-actin cross-bridges, with flutamide treatment also showing lower myofilament lattice stiffness. Myosin-actin cross-bridge kinetics were slower in MHC IIA fibers in flutamide-treated mice, but faster in EE2-treated mice, indicating that contractile velocity may be affected differently in this fiber type, which is commonly expressed in human skeletal muscle. Importantly, these effects were observed in the absence of outcomes previously used to evaluate ER agonists or AR antagonists in rodents including weight of reproductive organs or mammary gland morphology. Our findings indicate that substantial shifts in skeletal muscle function occur in male mice following acute exposures to low doses of a pharmacological ER agonist and an AR antagonist. These results suggest that countermeasures to maintain physical function may be needed early in situations that induce similar ER agonist and AR antagonist conditions.
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Affiliation(s)
- Brent A Momb
- Department of Kinesiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Gillian K Szabo
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Joshua P Mogus
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Stuart R Chipkin
- Department of Kinesiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Laura N Vandenberg
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Mark S Miller
- Department of Kinesiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
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9
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Sehgal I. Review of adult gender transition medications: mechanisms, efficacy measures, and pharmacogenomic considerations. Front Endocrinol (Lausanne) 2023; 14:1184024. [PMID: 37476490 PMCID: PMC10355117 DOI: 10.3389/fendo.2023.1184024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 06/16/2023] [Indexed: 07/22/2023] Open
Abstract
Gender dysphoria is the imparity between a person's experienced gender and their birth-assigned gender. Gender transition is the process of adapting a person's sexual characteristics to match their experienced gender. The number of adults receiving sex hormone therapy for gender dysphoria is increasingly and these pharmacotherapies are increasing being prescribed in a general practice setting. The role of hormone therapy is to reverse or reduce physical sexual characteristics of the birth-assigned gender and enhance and build characteristics aligning to the expressed gender and these therapies apply to both transgender and gender nonconforming patients. Recognizing the options and interpreting the effects of gender transition therapies are fundamental to the discussion and treatment of gender dysphoria. This review summarizes pharmacodynamics, comparative dosing, adverse effects, monitoring, and potential pharmacogenetic influence of current pharmacotherapy. These include the use of 17-beta-estradiol, spironolactone, testosterone, GnRH agonists as well as adjunctive phosphodiesterase-5 inhibitors. The article also addresses gaps within the published literature including optimal routes of administration for individual patients, risks of malignancy and dosing reductions as transgender patients age.
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Affiliation(s)
- Inder Sehgal
- Department of Biomedical Sciences, Rocky Vista University, Ivins, UT, United States
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10
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Nokoff NJ, Senefeld J, Krausz C, Hunter S, Joyner M. Sex Differences in Athletic Performance: Perspectives on Transgender Athletes. Exerc Sport Sci Rev 2023; 51:85-95. [PMID: 37057897 PMCID: PMC10330580 DOI: 10.1249/jes.0000000000000317] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Sex hormone concentrations, particularly testosterone, are primary determinants of sex-based differences in athletic and sports performance, and this relationship may inform fair competition and participation for athletes. This article describes the sex-based dichotomy in testosterone and the implications for sex-based differences in individual sports performance, including factors that relate to athletic performance for transgender individuals, and areas of future investigation.
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Affiliation(s)
- Natalie J Nokoff
- Division of Endocrinology, Department of Pediatrics, University of Colorado Anschutz Medical Campus
| | - Jonathon Senefeld
- Department of Anesthesiology & Perioperative Medicine and Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN
| | - Csilla Krausz
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Sandra Hunter
- Exercise Science Program, Department of Physical Therapy, and Athletic & Human Performance Research Center, Marquette University, Milwaukee, WI
| | - Michael Joyner
- Department of Anesthesiology & Perioperative Medicine and Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN
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11
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Hanson CJ, Reibel YG, Christianson D, Evans MD, Arnett MC. Students' knowledge, comfort, attitudes, and training on oral health of transgender individuals: A pilot study. J Dent Educ 2023. [PMID: 36807304 DOI: 10.1002/jdd.13186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/28/2022] [Accepted: 01/10/2023] [Indexed: 02/22/2023]
Abstract
PURPOSE The purpose of this pilot study was to evaluate students' knowledge, comfort, attitudes, and formal training on oral health of transgender individuals. METHODS A single-site cross-sectional study of 223 students from four educational programs were invited to participate in this study. A 17-item survey was modified from two previous instruments with permission. The electronic survey was disseminated via Google Forms two times 6 weeks a part. Analyses were conducted using R version 4.1.1. Survey responses were summarized as means and standard deviations. Comparisons of survey responses by program type, age group, prior degree, and gender were performed using the chi-square test for association and analysis of variance. RESULTS A total of118 completed the survey for a 53% response rate. Students disagreed (26.3%) they had knowledge on hormone treatments or non-hormonal treatment (40.7%) and strongly disagreed (40.7%) they had knowledge on oral manifestations of hormonal or non-hormonal therapies. Students strongly agreed they are comfortable treating transgender patients (63.6%) and believe it is the responsibility of all healthcare providers to care for transgender patients (83.1%). Students disagreed they are prepared to care for transgender patients (40.7%) or that their faculty demonstrate competency caring for transgender patients undergoing hormonal treatment (21.4%). CONCLUSION Students are comfortable providing oral health care to transgender individuals and feel a responsibility to care for them. Formal training on hormonal and non-hormonal therapy for transgender individuals is needed in dental education programs to enhance students' knowledge and faculty competence.
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Affiliation(s)
- Callie J Hanson
- Department of Primary Dental Care, Division of Dental Therapy, University of Minnesota School of Dentistry, Minneapolis, Minnesota, USA
| | - Yvette G Reibel
- Department of Primary Dental Care, Division of Dental Hygiene, University of Minnesota School of Dentistry, Minneapolis, Minnesota, USA
| | - Drew Christianson
- Department of Primary Dental Care, Division of Dental Therapy, University of Minnesota School of Dentistry, Minneapolis, Minnesota, USA
| | - Michael D Evans
- Biostatistical Design and Analysis Center, Clinical and Translational Science Institute, University of Minnesota, Minneapolis, Minnesota, USA
| | - Michelle C Arnett
- Department of Primary Dental Care, Division of Dental Hygiene, University of Minnesota School of Dentistry, Minneapolis, Minnesota, USA
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Hodax JK, DiVall S. Gender-affirming endocrine care for youth with a nonbinary gender identity. Ther Adv Endocrinol Metab 2023; 14:20420188231160405. [PMID: 37006780 PMCID: PMC10064168 DOI: 10.1177/20420188231160405] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 02/11/2023] [Indexed: 04/04/2023] Open
Abstract
Nonbinary individuals, or those who identify outside of the traditional gender binary, are currently present in up to 9% of the general population of youth or up to 55% of gender-diverse youth. Despite the high numbers of nonbinary individuals, this population continues to experience barriers to healthcare due to providers' inability to see beyond the transgender binary and lack of competence in providing nonbinary care. In this narrative review, we discuss using embodiment goals to individualize care of nonbinary individuals, and review hormonal and nonhormonal treatment options for gender affirmation. Hormonal treatments include those often used in binary transgender individuals, such as testosterone, estradiol, and anti-androgens, but with adjustments to dosing or timeline to best meet a nonbinary individual's embodiment goals. Less commonly used medications such as selective estrogen receptor antagonists are also discussed. For nonhormonal options, alterations in gender expression such as chest binding, tucking and packing genitalia, and voice training may be beneficial, as well as gender-affirming surgeries. Many of these treatments lack research specific to nonbinary individuals and especially nonbinary youth, and future research is needed to ensure safety and efficacy of gender-affirming care in this population.
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13
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Transwoman Elite Athletes: Their Extra Percentage Relative to Female Physiology. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159103. [PMID: 35897465 PMCID: PMC9331831 DOI: 10.3390/ijerph19159103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/28/2022] [Accepted: 07/07/2022] [Indexed: 12/03/2022]
Abstract
There is increasing debate as to whether transwoman athletes should be included in the elite female competition. Most elite sports are divided into male and female divisions because of the greater athletic performance displayed by males. Without the sex division, females would have little chance of winning because males are faster, stronger, and have greater endurance capacity. Male physiology underpins their better athletic performance including increased muscle mass and strength, stronger bones, different skeletal structure, better adapted cardiorespiratory systems, and early developmental effects on brain networks that wires males to be inherently more competitive and aggressive. Testosterone secreted before birth, postnatally, and then after puberty is the major factor that drives these physiological sex differences, and as adults, testosterone levels are ten to fifteen times higher in males than females. The non-overlapping ranges of testosterone between the sexes has led sports regulators, such as the International Olympic Committee, to use 10 nmol/L testosterone as a sole physiological parameter to divide the male and female sporting divisions. Using testosterone levels as a basis for separating female and male elite athletes is arguably flawed. Male physiology cannot be reformatted by estrogen therapy in transwoman athletes because testosterone has driven permanent effects through early life exposure. This descriptive critical review discusses the inherent male physiological advantages that lead to superior athletic performance and then addresses how estrogen therapy fails to create a female-like physiology in the male. Ultimately, the former male physiology of transwoman athletes provides them with a physiological advantage over the cis-female athlete.
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14
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Majumder A. Endocrine Therapy of Adult Gender-Incongruent Individuals Seeking Gender Reaffirmation. Indian J Plast Surg 2022; 55:149-155. [PMID: 36017400 PMCID: PMC9398529 DOI: 10.1055/s-0042-1749406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
AbstractGender-affirming hormone therapy (GAHT) is integral to the management of gender-incongruent (GI) individuals. GAHT greatly improves the quality of life for GI individuals. Current research about outcomes of GAHT and adverse events in adults receiving GAHT is limited in India and large cohort studies are absent. This document on medical management provides protocols for the prescribing clinician relating to counseling for GAHT, baseline evaluation, choice of therapy, targets for hormone therapy, clinical and biochemical monitoring, and perioperative hormone therapy.
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Affiliation(s)
- Anirban Majumder
- Department of Endocrinology, KPC Medical College and Hospital, Kolkata, West Bengal, India
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15
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Rashid A, Afiqah SN, Iguchi Y. Use of Hormones Among Trans Women in the West Coast of Peninsular Malaysia: A Mixed Methods Study. Transgend Health 2022; 7:242-249. [PMID: 35785047 PMCID: PMC9245722 DOI: 10.1089/trgh.2020.0119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Purpose: There are no national data on hormone use by trans women in Malaysia. The objective of this study was to determine hormone use and the associated factors by trans women in Malaysia. Methods: This mixed method (quantitative and qualitative) study (JPEC 03-18-0021) was conducted using a self-administered questionnaire among trans women who used hormones and recruited using snow ball sampling method. All participants had undergone a blood test in an assigned laboratory. Besides total testosterone and total estradiol blood levels, renal and liver function tests and lipid profile were done. Results: A total of 111 out of the 141 respondents who participated were taking hormones. The main reason for not taking hormones was the concern for side effects. The main source of information concerning hormones was friends, and most procured the hormones from pharmacy without prescription and without first undergoing a physical or blood examination. All were on estrogens and only about half were on progesterone. The common mode of intake was oral and by injection. Most were on <4 mg of estrogens and did not report any major complication. Most rated the hormone affordability and satisfaction as good. Most had inadequate testosterone and estradiol blood levels. Except for total cholesterol and low-density lipoproteins, all other blood tests were normal. Correlation between serum testosterone and estradiol (R2 0.012. B−9.273 (95% confidence interval −16.44 to −2.11). p=0.012) was statistically significant. Conclusion: The prevalence of hormone use was high, mostly nonprescription use and with no medical supervision.
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Affiliation(s)
- Abdul Rashid
- Department of Public Health Medicine, RCSI & UCD Malaysia Campus, George Town, Malaysia
| | - Siti Nur Afiqah
- Centre for Research on Women and Gender (KANITA), University Sains Malaysia, George Town, Malaysia
| | - Yufu Iguchi
- College of Asia Pacific Studies, Ritsumeikan Asia Pacific University, Beppu, Japan
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16
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Singh H, Kumar R, Mazumder A, Salahuddin, Mazumder R, Abdullah MM. Insights into Interactions of Human Cytochrome P450 17A1: Review. Curr Drug Metab 2022; 23:172-187. [DOI: 10.2174/1389200223666220401093833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 01/15/2022] [Accepted: 02/04/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Cytochrome P450s are a widespread and vast superfamily of hemeprotein monooxygenases that metabolize physiologically essential chemicals necessary for most species' survival, from protists to plants to humans. They catalyze the synthesis of steroid hormones, cholesterol, bile acids, and arachidonate metabolites and the degradation of endogenous compounds such as steroids, fatty acids, and other catabolizing compounds as an energy source and detoxifying xenobiotics such as drugs, procarcinogens, and carcinogens. The human CYP17A1 is one of the cytochrome P450 genes located at the 10q chromosome. The gene expression occurs in the adrenals and gonads, with minor amounts in the brain, placenta, and heart. This P450c17 cytochrome gene is a critical steroidogenesis regulator which performs two distinct activities: 17 alpha-hydroxylase activity (converting pregnenolone to 17-hydroxypregnenolone and progesterone to 17-hydroxyprogesterone, these precursors are further processed to provide glucocorticoids and sex hormones) and 17, 20-lyase activity (which converts 17-hydroxypregnenolone to DHEA). Dozens of mutations within CYP17A1 are found to cause 17-alpha-hydroxylase and 17, 20-lyase deficiency. This condition affects the function of certain hormone-producing glands, resulting in high blood pressure levels (hypertension), abnormal sexual development, and other deficiency diseases. This review highlights the changes in CYP17A1 associated with gene-gene interaction, drug-gene interaction, chemical-gene interaction, and its biochemical reactions; they have some insights to correlate with the fascinating functional characteristics of this human steroidogenic gene. The findings of our theoretical results will be helpful to further the design of specific inhibitors of CYP17A1.
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Affiliation(s)
- Himanshu Singh
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, India
| | - Rajnish Kumar
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, India
| | - Avijit Mazumder
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, India
| | - Salahuddin
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, India
| | - Rupa Mazumder
- Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Greater Noida, India
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17
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Shafaat S, Mangir N, Chapple C, MacNeil S, Hearnden V. A physiologically relevant, estradiol‐17β [E2]‐responsive in vitro tissue‐engineered model of the vaginal epithelium for vaginal tissue research. Neurourol Urodyn 2022; 41:905-917. [PMID: 35312089 PMCID: PMC9313856 DOI: 10.1002/nau.24908] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 02/11/2022] [Indexed: 11/13/2022]
Abstract
Aims There are many situations where preclinical models of the human vagina would be valuable for in vitro studies into the pathophysiology of vaginally transmitted diseases, microbicide efficacy, irritability testing, and particularly, for assessing materials to be inserted in the vagina for support of the pelvic floor. The aim of this study is to develop a physiologically relevant, low cost, and ethically suitable model of the vagina using sheep vaginal tissue (SVT) to reduce the need for animal testing in gynecological research. Methods Tissue‐engineered (TE) vaginal models were developed by culturing primary vaginal epithelial cells and vaginal fibroblasts, isolated from the native SVTs on decellularized sheep vaginal matrices at an air–liquid interface. Morphological analyses of the models were conducted by performing hematoxylin and eosin staining and further characterization was done by immunohistofluorescence (IHF) of structural proteins and cytokeratins. Results Histological analysis of the models revealed a gradual formation of a stratified epithelium on our decellularized matrices and cell metabolic activity remained high for 21 days as measured by the resazurin assay. Our models showed a dose‐dependent response to estradiol‐17β [E2] with an increase in the vaginal epithelium thickness and cellular proliferation under higher E2 concentrations (100–400 pg/ml). The physiological relevance of these results was confirmed by the IHF analysis of Ki67, and cytokeratins 10 and 19 expression. Conclusion In this study, we have developed an estradiol‐responsive TE vaginal model that closely mimics the structural and physiological properties of the native SVT.
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Affiliation(s)
- Sarah Shafaat
- Department of Materials Science and Engineering, Kroto Research Institute University of Sheffield Sheffield UK
| | - Naside Mangir
- Department of Urology, School of Medicine Hacettepe University Ankara Turkey
| | - Christopher Chapple
- Department of Urology, Royal Hallamshire Hospital Urology Clinic Sheffield UK
| | - Sheila MacNeil
- Department of Materials Science and Engineering, Kroto Research Institute University of Sheffield Sheffield UK
| | - Vanessa Hearnden
- Department of Materials Science and Engineering, Kroto Research Institute University of Sheffield Sheffield UK
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18
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Pine-Twaddell E, Newfield RS, Marinkovic M. Extended Use of Histrelin Implant in Pediatric Patients. Transgend Health 2022. [DOI: 10.1089/trgh.2021.0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Elyse Pine-Twaddell
- Chase Brexton Health Care, Pediatric Endocrinology, Pediatrics at University of Maryland, Baltimore, Maryland, USA
| | - Ron S. Newfield
- Division of Pediatric Endocrinology, Department of Pediatrics, University of California San Diego and Rady Children's Hospital, San Diego, California, USA
| | - Maja Marinkovic
- Division of Pediatric Endocrinology, Department of Pediatrics, University of California San Diego and Rady Children's Hospital, San Diego, California, USA
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19
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Krakowsky Y, Potter E, Hallarn J, Monari B, Wilcox H, Bauer G, Ravel J, Prodger JL. The Effect of Gender-Affirming Medical Care on the Vaginal and Neovaginal Microbiomes of Transgender and Gender-Diverse People. Front Cell Infect Microbiol 2022; 11:769950. [PMID: 35127550 PMCID: PMC8814107 DOI: 10.3389/fcimb.2021.769950] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/14/2021] [Indexed: 01/07/2023] Open
Abstract
Transgender and gender diverse individuals may seek gender-affirming medical care, such as hormone therapy or surgery, to produce primary and/or secondary sex characteristics that are more congruent with their gender. Gender-affirming medical care for transmasculine individuals can include testosterone therapy, which suppresses circulating estrogen and can lead to changes in the vaginal epithelium that are reminiscent of the post-menopausal period in cisgender females. Among transfeminine individuals, gender-affirming medical care can include vaginoplasty, which is the surgical creation of a vulva and neovaginal canal, commonly using penile and scrotal skin. The effect of gender-affirming medical care on the vagina of transmasculine individuals and on the neovagina of transfeminine individuals is poorly characterized. This review summarizes what is known of the epithelium and local microbiota of the testosterone-exposed vagina and the neovagina. We focus on potential pathogens and determinants of gynecological health and identify key knowledge gaps for future research.
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Affiliation(s)
- Yonah Krakowsky
- Division of Urology, Department of Surgery, Women’s College Hospital and Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada,Transition Related Surgery, Department of Surgery, Women’s College Hospital, University of Toronto, Toronto, ON, Canada
| | - Emery Potter
- Transition Related Surgery, Department of Surgery, Women’s College Hospital, University of Toronto, Toronto, ON, Canada
| | - Jason Hallarn
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Bern Monari
- Program in Molecular Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Hannah Wilcox
- Department of Microbiology and Immunology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Greta Bauer
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, United States,Department of Microbiology & Immunology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Jessica L. Prodger
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada,Department of Microbiology and Immunology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada,*Correspondence: Jessica L. Prodger,
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20
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Patel H, Samaha Y, Ives G, Lee TY, Cui X, Ray E. Chest Feminization in Male-to-Female Transgender Patients: A Review of Options. Transgend Health 2022; 6:244-255. [PMID: 34993297 DOI: 10.1089/trgh.2020.0057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Management of a transgender (TG) woman's gender dysphoria is individualized to address the sources of her distress. This typically involves some combination of psychological therapy, hormone modulation, and surgical intervention. Breast enhancement is the most commonly pursued physical modification in this population. Because hormone manipulation provides disappointing results for most TG women, surgical treatment is frequently required to achieve the goal of a feminine chest. Creating a female breast from natal male chest anatomy poses significant challenges; the sexual dimorphism requires a different approach than that used in cisgender breast augmentation. The options and techniques used continue to evolve as experience in this field grows.
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Affiliation(s)
- Harsh Patel
- Department of Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Yasmina Samaha
- Department of Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Graham Ives
- Department of Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Tian-Yu Lee
- Department of Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Xiaojiang Cui
- Department of Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
| | - Edward Ray
- Department of Surgery, Cedars Sinai Medical Center, Los Angeles, California, USA
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21
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Tollinche LE, Rosa WE, van Rooyen CD. Perioperative Considerations for Person-Centered Gender-Affirming Surgery. Adv Anesth 2021; 39:77-96. [PMID: 34715982 PMCID: PMC8562883 DOI: 10.1016/j.aan.2021.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
With more than 1 million people identifying as transgender in the United States alone, the likelihood of encountering a transgender patient and their family of choice in the perioperative setting is very high. A lack of data exists to equitably inform transgender-specific issues, as well as the associated morbidity during the transgender reassignment perioperative period. Anaesthesiologists should actively acquire the knowledge and skills needed to inclusively and respectfully manage these patients and be aware of their unique physiological and psychosocial needs. The pre-operative approach includes a detailed history, focusing on the patients cross-sex hormone treatment (CSHT) regimen and associated medical conditions. An in-depth understanding of commonly used hormones such as estrogen and testosterone and their effect in the perioperative periods is essential. The physical examination should be relevant to the anatomy that is currently present while taking into consideration feminising and masculinising procedures (e.g., genioplasty, thyroid cartilage augmentation), how these interventions alter the anatomy, and potential airway complications. Laboratory results should be interpreted with care – and with expert assistance if needed - as hormone therapy might affect reference values. In addition, risk assessment tools should be used with caution since they often include sex in their scoring system but do not account for the use of CSHT. Intraoperative considerations include urethral catheter placement, drug dosing, and drug interactions that are commonly encountered in the transgender patient. Special attention should be taken in transgender females who have undergone vocal feminization, as case reports have described unexpected difficult airway management. A multimodal approach, which includes regional blocks and attention to pre-existing chronic pain conditions, should be employed as part of the post-operative pain management plan. The post-operative nausea and vomiting risk has not yet been established in this population, requiring appropriate anti-emetic prophylaxis. Despite societal advances that improve transgender health, the medical community still lacks empirical evidence to effectively mitigate the distinctive challenges confronted by this at-risk population.
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Affiliation(s)
- Luis E Tollinche
- Department of Anesthesiology, MetroHealth Medical Center, 2500 MetroHealth Drive, Cleveland, OH 44109-1998, USA.
| | - William E Rosa
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, USA
| | - Christian D van Rooyen
- Department of Anesthesiology, University of Washington School of Medicine, 1959 NE Pacific St, Seattle, WA 98195, USA
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22
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Doll E, Gunsolus I, Thorgerson A, Tangpricha V, Lamberton N, Sarvaideo JL. Pharmacokinetics of Sublingual vs. Oral Estradiol in Transgender Women. Endocr Pract 2021; 28:237-242. [PMID: 34781041 DOI: 10.1016/j.eprac.2021.11.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/25/2021] [Accepted: 11/04/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To investigate the pharmacokinetics of 17ß-estradiol administered orally versus sublingually in transgender women. METHODS Single doses of 17ß-estradiol were administered orally (1 mg) to ten transgender women, then sublingually (1 mg) after a one-week washout. Blood samples were taken at baseline and T = 1,2,3,4,6,8 hours after dosing. Samples were frozen and analyzed using LC-MS/MS (liquid chromatography mass spectrometry) and immunoassay. RESULTS Results demonstrated that sublingual estradiol had a significantly higher peak serum estradiol (E2) concentration at 144 pg/mL by LC-MS/MS compared to oral estradiol at 35 pg/mL by LC-MS/MS (p= 0.003). Sublingual estradiol peaked at hour 1 and oral estradiol peaked at hour 8 when measured by LC-MS/MS. The area under the curve (AUC) 0-8h for sublingual estradiol measured by LC-MS/MS showed a 1.8-fold higher level compared to the AUC 0-8h for oral estradiol measured by LC-MS/MS. Additionally, sublingual E2 was found to have an increased E2 to estrone (E1) ratio at all timepoints (1.1 ± 1.0 v. 0.7 ± 0.4, p= <0.0001), the clinical significance of which is unclear. CONCLUSION Oral estradiol administered sublingually has a different pharmacokinetic profile, with higher serum estradiol levels and AUC (0-8h) than traditionally administered oral E2. Multi-daily dosing may be necessary to suppress testosterone levels with sublingual estradiol. The appropriate dosing, efficacy and safety of sublingual estradiol compared to other estradiol preparations is unknown.
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Affiliation(s)
| | - Ian Gunsolus
- Medical College of Wisconsin, Department of Pathology
| | | | - Vin Tangpricha
- Emory University School of Medicine, Division of Endocrinology
| | - Nathan Lamberton
- Medical College of Wisconsin School of Pharmacy, Department of Clinical Sciences
| | - Jenna L Sarvaideo
- Medical College of Wisconsin, Division of Endocrinology and Molecular Medicine.
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23
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Tomson A, McLachlan C, Wattrus C, Adams K, Addinall R, Bothma R, Jankelowitz L, Kotze E, Luvuno Z, Madlala N, Matyila S, Padavatan A, Pillay M, Rakumakoe MD, Tomson-Myburgh M, Venter WDF, de Vries E. Southern African HIV Clinicians' Society gender-affirming healthcare guideline for South Africa. South Afr J HIV Med 2021; 22:1299. [PMID: 34691772 PMCID: PMC8517808 DOI: 10.4102/sajhivmed.v22i1.1299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 12/31/2022] Open
Abstract
No abstract available.
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Affiliation(s)
- Anastacia Tomson
- My Family GP, Cape Town, South Africa.,Shemah Koleinu, Cape Town, South Africa
| | - Chris/Tine McLachlan
- KwaZulu-Natal Department of Health, Pietermaritzburg, South Africa.,Department of Psychology, College of Human Sciences, University of South Africa, Pretoria, South Africa.,Professional Association for Transgender Health South Africa, Cape Town, South Africa.,Psychological Society of South Africa, Johannesburg, South Africa
| | - Camilla Wattrus
- Southern African HIV Clinicians Society, Johannesburg, South Africa
| | - Kevin Adams
- Professional Association for Transgender Health South Africa, Cape Town, South Africa.,Department of Plastic Surgery, Faculty of Health Science, University of Cape Town, Cape Town, South Africa
| | - Ronald Addinall
- Professional Association for Transgender Health South Africa, Cape Town, South Africa.,Department of Social Development, Faculty of Humanities, University of Cape Town, Cape Town, South Africa.,Southern African Sexual Health Association, Cape Town, South Africa
| | - Rutendo Bothma
- Wits Reproductive Health Institute, Johannesburg, South Africa
| | | | - Elliott Kotze
- Psychologist, Independent Practice, Cape Town, South Africa
| | - Zamasomi Luvuno
- School of Nursing and Public Health, Centre for Rural Health, University of KwaZulu-Natal, Durban, South Africa
| | - Nkanyiso Madlala
- Department of Psychology, College of Human Sciences, University of South Africa, Pretoria, South Africa.,Professional Association for Transgender Health South Africa, Cape Town, South Africa.,Psychological Society of South Africa, Johannesburg, South Africa
| | | | | | - Mershen Pillay
- Professional Association for Transgender Health South Africa, Cape Town, South Africa.,Department of Speech-Language Therapy, Faculty of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.,Department of Speech-Language Therapy, Faculty of Health Sciences, Massey University, Auckland, New Zealand
| | - Mmamontsheng D Rakumakoe
- Professional Association for Transgender Health South Africa, Cape Town, South Africa.,Quadcare, Johannesburg, South Africa
| | | | - Willem D F Venter
- Ezintsha, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Elma de Vries
- Professional Association for Transgender Health South Africa, Cape Town, South Africa.,Cape Town Metro Health Services, Cape Town, South Africa.,School of Public Health and Family Medicine, Faculty of Health Science, University of Cape Town, Cape Town, South Africa
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24
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Maheshwari A, Nippoldt T, Davidge-Pitts C. An Approach to Nonsuppressed Testosterone in Transgender Women Receiving Gender-Affirming Feminizing Hormonal Therapy. J Endocr Soc 2021; 5:bvab068. [PMID: 34278180 PMCID: PMC8279075 DOI: 10.1210/jendso/bvab068] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Indexed: 12/14/2022] Open
Abstract
Nonsuppressed levels of testosterone are seen in up to a quarter of transgender women on gender-affirming feminizing hormonal treatment. Multiple factors contribute to this situation, including patient, medication, laboratory, and organ-specific concerns. We propose a stepwise approach to determine the etiology of nonsuppressed levels of testosterone in transgender women. This may lead to an appropriate feminizing hormonal therapy regimen and diagnosis of manageable medical conditions.
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Affiliation(s)
- Arvind Maheshwari
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN 55905, USA
| | - Todd Nippoldt
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN 55905, USA
| | - Caroline Davidge-Pitts
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, MN 55905, USA
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25
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Burinkul S, Panyakhamlerd K, Suwan A, Tuntiviriyapun P, Wainipitapong S. Anti-Androgenic Effects Comparison Between Cyproterone Acetate and Spironolactone in Transgender Women: A Randomized Controlled Trial. J Sex Med 2021; 18:1299-1307. [PMID: 37057417 DOI: 10.1016/j.jsxm.2021.05.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/12/2021] [Accepted: 05/03/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Spironolactone and cyproterone acetate are commonly used in feminizing hormone therapy to achieve the goal of female range testosterone level; however, the data on the efficacy comparing between these two anti-androgens are scarce. AIM To compare the anti-androgenic effects between spironolactone and cyproterone acetate as the component of feminizing hormone therapy among transgender women population. METHODS The study was single-blinded randomized controlled trial involved 52 transgender women from two transgender health clinics. Each participant received oral estradiol valerate 4 mg/day combined with anti-androgen, spironolactone 100 mg/day or cyproterone acetate 25 mg/day, depending on which group they were randomized to. Clinical and biochemical variables were obtained at baseline and at 12 weeks of feminizing hormone therapy. MAIN OUTCOME MEASURES The change of testosterone level from baseline. Other changes including free testosterone, estradiol, prolactin and lipid profile after the therapy. RESULTS After a 12 weeks of feminizing hormone therapy, the change of testosterone level in the cyproterone acetate group [558.0 ng/dL (IQR 352.0 to 783.3)] was significantly higher than the spironolactone group [226.2 ng/dL (IQR,-4.3 to 480.1)](p value <0.001). Testosterone and calculated free testosterone in the cyproterone acetate group were significantly lower than the spironolactone group. Consequently, a proportion of the participants who achieved the female range testosterone (<50 ng/dL) was significantly higher in cyproterone acetate group (90%) compared to the spironolactone group (19%). Serious adverse effects observed in cyproterone acetate users were drug-induced liver injury and asymptomatic hyperprolactinemia. CLINICAL IMPLICATIONS The data on the differences between the two anti-androgen could be benefit for the transgender health-care providers in medication selection and adverse-effects counseling. STRENGTHS & LIMITATIONS The study design was randomized controlled trial and controlled the estrogen component by prescribed the same type and dose for each participant. However, the study was suffered from the confound feminizing effects from previous hormone therapy and the high drop-out rate. CONCLUSION For feminizing hormone therapy, cyproterone acetate had a higher testosterone suppression efficacy than spironolactone. Burinkul S, Panyakhamlerd K, Suwan A, et al. Anti-Andorgenic Effects Comparison Between Cyproterone Acetate and Spironolactone in Transgender Women: A Randomized Controlled Trial. J Sex Med 2021;18:1299-1307.
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Affiliation(s)
- Supanat Burinkul
- Division of Gender, Sexual and Climacteric medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Krasean Panyakhamlerd
- Division of Gender, Sexual and Climacteric medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
| | - Ammarin Suwan
- Division of Gender, Sexual and Climacteric medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Punkavee Tuntiviriyapun
- Division of Reproductive Medicine, Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sorawit Wainipitapong
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Chantrapanichkul P, Stevenson MO, Suppakitjanusant P, Goodman M, Tangpricha V. SERUM HORMONE CONCENTRATIONS IN TRANSGENDER INDIVIDUALS RECEIVING GENDER-AFFIRMING HORMONE THERAPY: A LONGITUDINAL RETROSPECTIVE COHORT STUDY. Endocr Pract 2021; 27:27-33. [PMID: 33471729 DOI: 10.4158/ep-2020-0414] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To examine the association of various gender-affirming hormone therapy regimens with blood sex hormone concentrations in transgender individuals. METHODS This retrospective study included transgender people receiving gender-affirming hormone therapy between January 2000 and September 2018. Data on patient demographics, laboratory values, and hormone dose and frequency were collected. Nonparametric tests and linear regression analyses were used to identify factors associated with serum hormone concentrations. RESULTS Overall, 196 subjects (134 transgender women and 62 transgender men), with a total of 941 clinical visits, were included in this study. Transgender men receiving transdermal testosterone had a significantly lower median concentration of serum total testosterone when compared with those receiving injectable preparations (326.0 ng/dL vs 524.5 ng/dL, respectively, P = .018). Serum total estradiol concentrations in the transgender women were higher in those receiving intramuscular estrogen compared with those receiving oral and transdermal estrogen (366.0 pg/mL vs 102.0 pg/mL vs 70.8 pg/mL, respectively, P < .001). A dose-dependent increase in the hormone levels was observed for oral estradiol (P < .001) and injectable testosterone (P = .018) but not for intramuscular and transdermal estradiol. Older age and a history of gonadectomy in both the transgender men and women were associated with significantly higher concentrations of serum gender-affirming sex hormones. CONCLUSION In the transgender men, all routes and formulations of testosterone appeared to be equally effective in achieving concentrations in the male range. The intramuscular injections of estradiol resulted in the highest serum concentrations of estradiol, whereas transdermal estradiol resulted in the lowest concentration. There was positive relationship between both oral estradiol and injectable testosterone dose and serum sex hormone concentrations in transgender people receiving GAHT.
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Affiliation(s)
- Panicha Chantrapanichkul
- Division of Gynecologic Endocrinology, Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Mary O Stevenson
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Emory University, Atlanta, Georgia
| | | | - Michael Goodman
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Vin Tangpricha
- Division of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Emory University, Atlanta, Georgia; Atlanta VA Medical Center, Decatur, Georgia.
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Cirrincione LR, Winston McPherson G, Rongitsch J, Sadilkova K, Drees JC, Krasowski MD, Dickerson JA, Greene DN. Sublingual Estradiol Is Associated with Higher Estrone Concentrations than Transdermal or Injectable Preparations in Transgender Women and Gender Nonbinary Adults. LGBT Health 2021; 8:125-132. [PMID: 33439749 DOI: 10.1089/lgbt.2020.0249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose: Serum hormone profiles among different feminizing gender-affirming hormone therapies (GAHT) are poorly characterized. To address this gap, we described the serum estrogen profiles of three 17β-estradiol preparations, taken with or without an antiandrogen, using a novel liquid chromatography-mass spectrometry (LC-MS/MS) assay in adults taking feminizing GAHT. Methods: This was a secondary analysis of 93 healthy transgender women and gender nonbinary adults taking feminizing GAHT in a prospective cross-sectional study. Eligible participants took 17β-estradiol (sublingual tablet, transdermal patch, or intramuscular/subcutaneous injection) with or without oral spironolactone for ≥12 months before study entry. We determined serum estrone and estradiol concentrations for each hormone preparation and described the association between estrone and (1) clinically relevant estradiol concentration ranges (≤200 and >200 pg/mL) and (2) antiandrogen use. To achieve our objectives, we described our protocol for developing an LC-MS/MS assay to measure estrone and estradiol concentrations. Results: Estrone concentrations were higher among participants taking sublingual 17β-estradiol tablets compared with transdermal or injectable preparations (p < 0.0001). Estradiol concentrations were higher for injectable versus transdermal preparations (p = 0.0201), but both were similar to sublingual tablet concentrations (p > 0.05). Estradiol >200 pg/mL (vs. ≤200 pg/mL) was associated with higher estrone concentrations among participants taking sublingual 17β-estradiol, but not transdermal or injectable 17β-estradiol. We observed no association between spironolactone and estrone concentrations (p > 0.5). Conclusion: Estrone concentrations were higher among transgender women and gender nonbinary adults taking sublingual 17β-estradiol compared with transdermal or injectable preparations. The role of estrone in clinical monitoring and the influence of other antiandrogens (e.g., cyproterone acetate) on the estrogen profile remain to be determined.
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Affiliation(s)
| | | | | | - Katerina Sadilkova
- Department of Laboratories, Seattle Children's Hospital, Seattle, Washington, USA
| | - Julia C Drees
- The Permanente Medical Group Regional Laboratories, Berkeley, California, USA
| | - Matthew D Krasowski
- Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Jane A Dickerson
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, USA.,Department of Laboratories, Seattle Children's Hospital, Seattle, Washington, USA
| | - Dina N Greene
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, USA
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Cirrincione LR, Narla RR. Gender-Affirming Hormone Therapy and Bone Health: Do Different Regimens Influence Outcomes in Transgender Adults? A Narrative Review and Call for Future Studies. J Appl Lab Med 2021; 6:219-235. [PMID: 33432334 DOI: 10.1093/jalm/jfaa213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/23/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Gender-affirming hormone therapy (GAHT) influences bone health in transgender individuals. Several hormone preparations and administration routes are available for GAHT, but no studies have compared clinical and laboratory bone health measures across different GAHT regimens. CONTENT We searched PubMed (MEDLINE), Embase, and Google Scholar for studies measuring bone turnover markers and bone mineral density before and during GAHT in transgender adults. We summarized bone health data by hormone type and administration route (estrogen or testosterone; oral, transdermal/percutaneous, intramuscular). Among trans women, we also examined outcomes among regimens containing different adjunctive agents (antiandrogens or gonadotropin-releasing hormone analogs). SUMMARY Most hormone preparations maintained or increased areal bone mineral density among trans adults taking GAHT for at least 12 months from baseline. Different bone turnover markers were measured across studies, and we were unable to compare or comment on the direct influence of selected hormone preparations on these clinical laboratory measures. Larger and uniformed studies are needed to measure volumetric bone mineral density and biomarkers of bone metabolism in trans adults taking standardized GAHT regimens.
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Affiliation(s)
| | - Radhika R Narla
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA
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Coelingh Bennink HJT, Egberts JFM, Mol JA, Roes KCB, van Diest PJ. Breast Cancer and Major Deviations of Genetic and Gender-related Structures and Function. J Clin Endocrinol Metab 2020; 105:5864415. [PMID: 32594127 DOI: 10.1210/clinem/dgaa404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/24/2020] [Indexed: 11/19/2022]
Abstract
We have searched the literature for information on the risk of breast cancer (BC) in relation to gender, breast development, and gonadal function in the following 8 populations: 1) females with the Turner syndrome (45, XO); 2) females and males with congenital hypogonadotropic hypogonadism and the Kallmann syndrome; 3) pure gonadal dysgenesis (PGD) in genotypic and phenotypic females and genotypic males (Swyer syndrome); 4) males with the Klinefelter syndrome (47, XXY); 5) male-to-female transgender individuals; 6) female-to-male transgender individuals; 7) genotypic males, but phenotypic females with the complete androgen insensitivity syndrome, and 8) females with Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome (müllerian agenesis). Based on this search, we have drawn 3 major conclusions. First, the presence of a Y chromosome protects against the development of BC, even when female-size breasts and female-level estrogens are present. Second, without menstrual cycles, BC hardly occurs with an incidence comparable to males. There is a strong correlation between the lifetime number of menstrual cycles and the risk of BC. In our populations the BC risk in genetic females not exposed to progesterone (P4) is very low and comparable to males. Third, BC has been reported only once in genetic females with MRKH syndrome who have normal breasts and ovulating ovaries with normal levels of estrogens and P4. We hypothesize that the oncogenic glycoprotein WNT family member 4 is the link between the genetic cause of MRKH and the absence of BC women with MRKH syndrome.
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Affiliation(s)
| | | | - Jan A Mol
- Faculty of Veterinary Medicine, University of Utrecht, GA Utrecht, the Netherlands
| | - Kit C B Roes
- Department of Health Evidence, Section Biostatistics, Radboud University Medical Centre, GA Nijmegen, the Netherlands
| | - Paul J van Diest
- Department of Pathology, University Medical Center Utrecht, GA Utrecht, the Netherlands
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30
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Irwig MS. Is there a role for 5α-reductase inhibitors in transgender individuals? Andrology 2020; 9:1729-1731. [PMID: 32749751 DOI: 10.1111/andr.12881] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/19/2020] [Accepted: 07/28/2020] [Indexed: 12/19/2022]
Abstract
This commentary will explore the important clinical question regarding whether the antiandrogen class of 5α-reductase inhibitors should be considered as an effective and safe treatment option for transfeminine and/or transmasculine individuals. The use of finasteride in transfeminine individuals is based upon the theory that the goal of medical treatment is to reduce the concentrations of androgens, including dihydrotestosterone. Nonetheless, it is unclear that finasteride will have any additive clinical benefit once testosterone levels have already been lowered with standard treatment regimens (i.e. estrogen with spironolactone or cyproterone acetate). For transmasculine individuals, 5α-reductase inhibitors may be a potential treatment option for a subset with androgenetic alopecia but may come at the expense of impairing virilization driven by dihydrotestosterone. In the absence of efficacy and safety data on 5α-reductase inhibitors in gender diverse populations, clinicians should discuss this issue with patients who request or are contemplating their use.
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Affiliation(s)
- Michael S Irwig
- Division of Endocrinology, Diabetes & Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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Cocchetti C, Ristori J, Romani A, Maggi M, Fisher AD. Hormonal Treatment Strategies Tailored to Non-Binary Transgender Individuals. J Clin Med 2020; 9:jcm9061609. [PMID: 32466485 PMCID: PMC7356977 DOI: 10.3390/jcm9061609] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/15/2020] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
Introduction: To date no standardized hormonal treatment protocols for non-binary transgender individuals have been described in the literature and there is a lack of data regarding their efficacy and safety. Objectives: To suggest possible treatment strategies for non-binary transgender individuals with non-standardized requests and to emphasize the importance of a personalized clinical approach. Methods: A narrative review of pertinent literature on gender-affirming hormonal treatment in transgender persons was performed using PubMed. Results: New hormonal treatment regimens outside those reported in current guidelines should be considered for non-binary transgender individuals, in order to improve psychological well-being and quality of life. In the present review we suggested the use of hormonal and non-hormonal compounds, which—based on their mechanism of action—could be used in these cases depending on clients’ requests. Conclusion: Requests for an individualized hormonal treatment in non-binary transgender individuals represent a future challenge for professionals managing transgender health care. For each case, clinicians should balance the benefits and risks of a personalized non-standardized treatment, actively involving the person in decisions regarding hormonal treatment.
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Affiliation(s)
- Carlotta Cocchetti
- Andrology, Women’s Endocrinology and Gender Incongruence Unit, Florence University Hospital, 50139 Florence, Italy; (C.C); (J.R.); (A.R.)
| | - Jiska Ristori
- Andrology, Women’s Endocrinology and Gender Incongruence Unit, Florence University Hospital, 50139 Florence, Italy; (C.C); (J.R.); (A.R.)
| | - Alessia Romani
- Andrology, Women’s Endocrinology and Gender Incongruence Unit, Florence University Hospital, 50139 Florence, Italy; (C.C); (J.R.); (A.R.)
| | - Mario Maggi
- Department of Experimental, Clinical and Biomedical Sciences, Careggi University Hospital, 50139 Florence, Italy;
| | - Alessandra Daphne Fisher
- Andrology, Women’s Endocrinology and Gender Incongruence Unit, Florence University Hospital, 50139 Florence, Italy; (C.C); (J.R.); (A.R.)
- Correspondence:
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Nolan BJ, Brownhill A, Bretherton I, Wong P, Fox S, Locke P, Russell N, Grossmann M, Zajac JD, Cheung AS. Relationships between body mass index with oral estradiol dose and serum estradiol concentration in transgender adults undergoing feminising hormone therapy. Ther Adv Endocrinol Metab 2020; 11:2042018820924543. [PMID: 32547727 PMCID: PMC7249588 DOI: 10.1177/2042018820924543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/15/2020] [Indexed: 11/16/2022] Open
Abstract
AIM Feminising hormone therapy with estradiol is used to align an individual's physical characteristics with their gender identity. Given considerable variations in doses of estradiol therapy administered as gender-affirming hormone therapy (GAHT), we aimed to assess if body mass index (BMI) correlated with estradiol dose/concentration and assess the correlation between estradiol dose and estradiol concentrations. METHODS In a retrospective cross-sectional study, we analysed transgender individuals attending a primary or secondary care clinic in Melbourne, Australia who were prescribed oral estradiol valerate for at least 6 months and had estradiol dose and concentration available. Estradiol concentration was measured by immunoassay. Outcomes were the correlation between estradiol dose and BMI, and estradiol dose and estradiol concentration. RESULTS Data were available for 259 individuals {median age 25.8 [interquartile range (IQR) 21.9, 33.5] years}. Median duration of estradiol therapy was 24 (15, 33) months. Median estradiol concentration was 328 (238, 434) pmol/l [89 (65, 118) pg/ml] on 6 (4, 8) mg estradiol valerate. Median BMI was 24.7 (21.8, 28.6) kg/m2. There was a weak positive correlation between estradiol dose and estradiol concentration (r = 0.156, p = 0.012). There was no correlation between BMI and estradiol concentration achieved (r = -0.063, p = 0.413) or BMI and estradiol dose (r = 0.048, p = 0.536). Estradiol concentrations were within the target range recommended in consensus guidelines in 172 (66%) individuals. CONCLUSION Estradiol dose was only weakly correlated with estradiol concentration, suggesting significant interindividual variability. Prescription of estradiol dose should not be based upon an individual's BMI, which did not correlate with estradiol concentration achieved. In all, 66% of individuals achieved estradiol concentrations recommended in Australian consensus guidelines with a relatively high oral estradiol dose.
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Affiliation(s)
| | - Adam Brownhill
- Equinox Gender Diverse Clinic, Thorne Harbour Health, Fitzroy, Victoria, Australia
| | - Ingrid Bretherton
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia
| | - Peggy Wong
- Equinox Gender Diverse Clinic, Thorne Harbour Health, Fitzroy, Victoria, Australia
| | - Susan Fox
- Equinox Gender Diverse Clinic, Thorne Harbour Health, Fitzroy, Victoria, Australia
| | - Peter Locke
- Equinox Gender Diverse Clinic, Thorne Harbour Health, Fitzroy, Victoria, Australia
| | - Nicholas Russell
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia
| | - Mathis Grossmann
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia
| | - Jeffrey D. Zajac
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia
| | - Ada S. Cheung
- Department of Endocrinology, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Victoria, Australia
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The Medical Management of Gender Dysphoric, Gender Fluid, Gender Nonconforming, Gender Queer, Nonbinary, and Transgender Patients: One Clinic’s Approach. CURRENT SEXUAL HEALTH REPORTS 2019. [DOI: 10.1007/s11930-019-00221-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Jain J, Kwan D, Forcier M. Medroxyprogesterone Acetate in Gender-Affirming Therapy for Transwomen: Results From a Retrospective Study. J Clin Endocrinol Metab 2019; 104:5148-5156. [PMID: 31127826 DOI: 10.1210/jc.2018-02253] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 04/17/2019] [Indexed: 02/04/2023]
Abstract
CONTEXT Medroxyprogesterone acetate (MPA) is a widely used progestin in feminizing hormone therapy. However, the side effects and hormonal changes elicited by this drug have never been investigated in the transgender population. OBJECTIVE We evaluated the incidence of self-reported effects among transwomen using MPA and this drug's impact on hormonal and metabolic parameters. DESIGN, SETTING, AND PARTICIPANTS We retrospectively collected data from 290 follow-up visits (FUVs) of transwomen treated at Rhode Island Hospital from January 2011 to July 2018 (mean duration of therapy 3.4 ± 1.7 years). FUVs followed regimens of estradiol (E) and spironolactone, with MPA (n = 102) or without MPA (n = 188). MAIN OUTCOME MEASURES We assessed the incidence of self-reported effects after MPA treatment. We also compared blood levels of E, testosterone, and various laboratory parameters between MPA and non-MPA groups. RESULTS Mean weighted E level was 211 ± 57 pg/mL after MPA treatment and 210 ± 31 pg/mL otherwise; this difference was nonsignificant [t(274) = 0.143, P = 0.886]. Mean weighted testosterone level was 79 ± 18 ng/dL after MPA treatment and 215 ± 29 ng/dL otherwise; testosterone levels were significantly lower in the MPA group [t(122) = 32.4, P < 0.001]. There were minimal changes in other laboratory parameters. Of 39 patients receiving MPA, 26 reported improved breast development and 11 reported decreased facial hair. Five patients experienced mood swings on MPA. CONCLUSIONS In our cohort of transwomen, we found minimal side effects, unchanged E levels, and a decline in testosterone associated with MPA, outcomes consistent with feminization. Prospective studies are needed to confirm our findings.
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Affiliation(s)
- Jaison Jain
- Gender and Sexual Health Services, Department of Pediatrics, Rhode Island Hospital, Providence, Rhode Island
- Department of Plastic and Reconstructive Surgery, Rhode Island Hospital, Providence, Rhode Island
- Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Daniel Kwan
- Department of Plastic and Reconstructive Surgery, Rhode Island Hospital, Providence, Rhode Island
- Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Michelle Forcier
- Gender and Sexual Health Services, Department of Pediatrics, Rhode Island Hospital, Providence, Rhode Island
- Warren Alpert Medical School of Brown University, Providence, Rhode Island
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Leinung MC, Miller CH, Tehrani B, Joseph J. The Effect of Efavirenz on Estradiol Metabolism in Transgender Women. Transgend Health 2019; 4:197-199. [PMID: 31501775 PMCID: PMC6729103 DOI: 10.1089/trgh.2019.0018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The goal of hormonal therapy in treating gender dysphoria is to maintain cross-sex hormone levels in the normal physiological range for the desired gender. Estrogen is the mainstay of hormonal therapy for male to female transgender patients. Efavirenz, a non-nucleoside reverse-transcriptase inhibitor, has been one of the most commonly prescribed antiretroviral therapies (ARTs). However, this regimen has also given rise to the most clinically significant drug-drug interactions between ARTs and hormone-based contraceptives. We discuss here three transgender HIV-positive women in whom efavirenz effected the metabolism of orally administered estradiol (and probably medroxyprogesterone).
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Affiliation(s)
| | - Cynthia H Miller
- Division of HIV Medicine, Albany Medical College, Albany, New York
| | - Babak Tehrani
- Department of Medicine, Albany Medical College, Albany, New York
| | - Jalaja Joseph
- Division of Endocrinology, Albany Medical College, Albany, New York
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36
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Shoemaker R, Tannock LR, Su W, Gong M, Gurley SB, Thatcher SE, Yiannikouris F, Ensor CM, Cassis LA. Adipocyte deficiency of ACE2 increases systolic blood pressures of obese female C57BL/6 mice. Biol Sex Differ 2019; 10:45. [PMID: 31484552 PMCID: PMC6727421 DOI: 10.1186/s13293-019-0260-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 08/26/2019] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Obesity increases the risk for hypertension in both sexes, but the prevalence of hypertension is lower in females than in males until menopause, despite a higher prevalence of obesity in females. We previously demonstrated that angiotensin-converting enzyme 2 (ACE2), which cleaves the vasoconstrictor, angiotensin II (AngII), to generate the vasodilator, angiotensin-(1-7) (Ang-(1-7)), contributes to sex differences in obesity-hypertension. ACE2 expression in adipose tissue was influenced by obesity in a sex-specific manner, with elevated ACE2 expression in obese female mice. Moreover, estrogen stimulated adipose ACE2 expression and reduced obesity-hypertension in females. In this study, we hypothesized that deficiency of adipocyte ACE2 contributes to obesity-hypertension of females. METHODS We generated a mouse model of adipocyte ACE2 deficiency. Male and female mice with adipocyte ACE2 deficiency or littermate controls were fed a low (LF) or a high fat (HF) diet for 16 weeks and blood pressure was quantified by radiotelemetry. HF-fed mice of each sex and genotype were challenged by an acute AngII injection, and blood pressure response was quantified. To translate these findings to humans, we performed a proof-of-principle study in obese transwomen in which systemic angiotensin peptides and blood pressure were quantified prior to and after 12 weeks of gender-affirming 17β-estradiol hormone therapy. RESULTS Adipocyte ACE2 deficiency had no effect on the development of obesity in either sex. HF feeding increased systolic blood pressures (SBP) of wild-type male and female mice compared to LF-fed controls. Adipocyte ACE2 deficiency augmented obesity-induced elevations in SBP in females, but not in males. Obese female, but not obese male mice with adipocyte ACE2 deficiency, had an augmented SBP response to acute AngII challenge. In humans, plasma 17β-estradiol concentrations increased in obese transwomen administered 17β-estradiol and correlated positively with plasma Ang-(1-7)/AngII balance, and negatively to SBP after 12 weeks of 17β-estradiol administration. CONCLUSIONS Adipocyte ACE2 protects female mice from obesity-hypertension, and reduces the blood pressure response to systemic AngII. In obese transwomen undergoing gender-affirming hormone therapy, 17β-estradiol administration may regulate blood pressure via the Ang-(1-7)/AngII balance.
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Affiliation(s)
- Robin Shoemaker
- Department of Dietetics and Human Nutrition, University of Kentucky, Lexington, KY, 40506, USA.
| | - Lisa R Tannock
- Division of Endocrinology and Molecular Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Wen Su
- Department of Physiology, University of Kentucky, Lexington, KY, 40536, USA
| | - Ming Gong
- Department of Physiology, University of Kentucky, Lexington, KY, 40536, USA
| | - Susan B Gurley
- Division of Nephrology and Hypertension, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Sean E Thatcher
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, 40536, USA
| | - Frederique Yiannikouris
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, 40536, USA
| | - Charles M Ensor
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, 40536, USA
| | - Lisa A Cassis
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, 40536, USA
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Iwamoto SJ, Defreyne J, Rothman MS, Van Schuylenbergh J, Van de Bruaene L, Motmans J, T’Sjoen G. Health considerations for transgender women and remaining unknowns: a narrative review. Ther Adv Endocrinol Metab 2019; 10:2042018819871166. [PMID: 31516689 PMCID: PMC6719479 DOI: 10.1177/2042018819871166] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 07/31/2019] [Indexed: 12/17/2022] Open
Abstract
Transgender (trans) women (TW) were assigned male at birth but have a female gender identity or gender expression. The literature on management and health outcomes of TW has grown recently with more publication of research. This has coincided with increasing awareness of gender diversity as communities around the world identify and address health disparities among trans people. In this narrative review, we aim to comprehensively summarize health considerations for TW and identify TW-related research areas that will provide answers to remaining unknowns surrounding TW's health. We cover up-to-date information on: (1) feminizing gender-affirming hormone therapy (GAHT); (2) benefits associated with GAHT, particularly quality of life, mental health, breast development and bone health; (3) potential risks associated with GAHT, including cardiovascular disease and infertility; and (4) other health considerations like HIV/AIDS, breast cancer, other tumours, voice therapy, dermatology, the brain and cognition, and aging. Although equally deserving of mention, feminizing gender-affirming surgery, paediatric and adolescent populations, and gender nonbinary individuals are beyond the scope of this review. While much of the data we discuss come from Europe, the creation of a United States transgender cohort has already contributed important retrospective data that are also summarized here. Much remains to be determined regarding health considerations for TW. Patients and providers will benefit from larger and longer prospective studies involving TW, particularly regarding the effects of aging, race and ethnicity, type of hormonal treatment (e.g. different oestrogens, anti-androgens) and routes of administration (e.g. oral, parenteral, transdermal) on all the topics we address.
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Affiliation(s)
- Sean J. Iwamoto
- University of Colorado School of Medicine, Division of Endocrinology, Metabolism and Diabetes, 12801 East 17th Avenue, Mail Stop: 8106, Aurora, CO 80045, USA
- UCHealth Integrated Transgender Program, Anschutz Medical Campus, Aurora, CO, USA
- Division of Endocrinology, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
| | - Justine Defreyne
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Micol S. Rothman
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
- UCHealth Integrated Transgender Program, Anschutz Medical Campus, Aurora, CO, USA
| | | | | | - Joz Motmans
- Center for Sexology and Gender, Ghent University Hospital, Ghent, Belgium
- Center for Research on Culture and Gender, Ghent University, Ghent, Belgium
| | - Guy T’Sjoen
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
- Center for Sexology and Gender, Ghent University Hospital, Ghent, Belgium
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