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Adel F, Walsh CD, Bretzman J, Sang P, Lara-Breitinger K, Mahowald M, Maheshwari A, Scott CG, Lee AT, Davidge-Pitts CJ, Pellikka PA, Mankad R. Transgender Women Exhibit a Distinct Stress Echocardiography Profile Compared With Age-Matched Cisgender Counterparts: The Mayo Clinic Women's Heart Clinic Experience. J Am Soc Echocardiogr 2024; 37:740-748. [PMID: 38754746 DOI: 10.1016/j.echo.2024.05.004] [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: 09/20/2023] [Revised: 03/28/2024] [Accepted: 05/03/2024] [Indexed: 05/18/2024]
Abstract
BACKGROUND Stress echocardiographic (SE) testing is an important modality in cardiovascular risk stratification and obstructive coronary artery disease assessment. Binary sex-based parameters are classically used for the interpretation of these studies, even among transgender women (TGW). Coronary artery disease is a leading cause of morbidity and mortality in this population. Yet, it remains unclear whether TGW exhibit a distinct stress testing profile from their cisgender counterparts. METHODS Using a matched case-control study design, the authors compared the echocardiographic stress testing profiles of TGW (n = 43) with those of matched cisgender men (CGM; n = 84) and cisgender women (CGW; n = 86) at a single center. Relevant data, including demographics, comorbidities, and cardiac testing data, were manually extracted from the patients' charts. RESULTS The prevalence of hypertension and dyslipidemia was similar between TGW and CGW and lower than that of CGM (P = .003 and P = .009, respectively). The majority of comorbidities and laboratory values were similar. On average, TGW had higher heart rates than CGM (P = .002) and had lower blood pressures than CGM and CGW (P < .05). TGW's double product and metabolic equivalents were similar to those among CGW and lower than those of CGM (P = .016 and P = .018, respectively). On echocardiography, left ventricular end-diastolic and end-systolic diameters among TGW were similar to those of CGW but lower than those of CGM (P = .023 and P = .018, respectively). Measures of systolic and diastolic function, except for exercise mitral valve E/e' ratio, which was lower in TGW than CGW (P = .029), were largely similar among the three groups. There was no difference in the wall motion score index, and therefore, no difference in the percentage of positive SE test results. CONCLUSIONS This study shows, for the first time, that TGW have a SE profile that is distinct from that of their cisgender counterparts. Larger, multicenter, prospective studies are warranted to further characterize the SE profile of TGW.
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Affiliation(s)
- Fadi Adel
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
| | - Connor D Walsh
- Department of Internal Medicine, University of Washington, Seattle, Washington
| | - John Bretzman
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
| | - Philip Sang
- Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
| | | | - Madeline Mahowald
- Division of Cardiology, Department of Medicine, University of Florida, Jacksonville, Florida
| | | | - Christopher G Scott
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | - Alexander T Lee
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota
| | - Caroline J Davidge-Pitts
- Division of Endocrinology, Diabetes, and Nutrition, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | | | - Rekha Mankad
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.
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Turino Miranda K, Greene DN, Collister D, Krasowski MD, Ahmed SB, Cirrincione LR, Rosas SE, Saad N, Pierre CC. A Holistic Framework for the Evaluation of Kidney Function in a Gender-Diverse Landscape. Am J Kidney Dis 2024; 84:232-240. [PMID: 38458377 DOI: 10.1053/j.ajkd.2024.01.522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 03/10/2024]
Abstract
The most commonly used equations to estimate glomerular filtration rate incorporate a binary male-female sex coefficient, which has important implications for the care of transgender, gender-diverse, and nonbinary (TGD) people. Whether "sex assigned at birth" or a binary "gender identity" is most appropriate for the computation of estimated glomerular filtration rate (eGFR) is unknown. Furthermore, the use of gender-affirming hormone therapy (GAHT) for the development of physical changes to align TGD people with their affirmed gender is increasingly common, and may result in changes in serum creatinine and cystatin C, the biomarkers commonly used to estimate glomerular filtration rate. The paucity of current literature evaluating chronic kidney disease (CKD) prevalence and outcomes in TGD individuals on GAHT makes it difficult to assess any effects of GAHT on kidney function. Whether alterations in serum creatinine reflect changes in glomerular filtration rate or simply changes in muscle mass is unknown. Therefore, we propose a holistic framework to evaluate kidney function in TGD people. The framework focuses on kidney disease prevalence, risk factors, sex hormones, eGFR, other kidney function assessment tools, and the mitigation of health inequities in TGD people.
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Affiliation(s)
- Keila Turino Miranda
- Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada; Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Dina N Greene
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington; LetsGetChecked Laboratories, Monrovia, California
| | - David Collister
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Matthew D Krasowski
- Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Sofia B Ahmed
- Libin Cardiovascular Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Kidney Disease Network, Calgary, Alberta, Canada; Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | | | - Sylvia E Rosas
- Kidney and Hypertension Unit, Joslin Diabetes Center, Boston, Massachusetts; Department of Nephrology, Beth Israel Deaconess Medical Centre, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts
| | - Nathalie Saad
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Christina C Pierre
- Department of Pathology and Laboratory Medicine, Penn Medicine Lancaster General Health, Lancaster, Pennsylvania; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
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Glintborg D, Christensen LL, Andersen MS. Transgender healthcare: metabolic outcomes and cardiovascular risk. Diabetologia 2024:10.1007/s00125-024-06212-6. [PMID: 38958699 DOI: 10.1007/s00125-024-06212-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/21/2024] [Indexed: 07/04/2024]
Abstract
Transgender identity is often associated with gender dysphoria and minority stress. Gender-affirming hormone treatment (GAHT) includes masculinising or feminising treatment and is expected to be lifelong in most cases. Sex and sex hormones have a differential effect on metabolism and CVD in cisgender people, and sex hormone replacement in hypogonadism is associated with higher vascular risk, especially in ageing individuals. Using narrative review methods, we present evidence regarding metabolic and cardiovascular outcomes during GAHT and propose recommendations for follow-up and monitoring of metabolic and cardiovascular risk markers during GAHT. Available data show no increased risk for type 2 diabetes in transgender cohorts, but masculinising GAHT increases lean body mass and feminising GAHT is associated with higher fat mass and insulin resistance. The risk of CVD is increased in transgender cohorts, especially during feminising GAHT. Masculinising GAHT is associated with a more adverse lipid profile, higher haematocrit and increased BP, while feminising GAHT is associated with pro-coagulant changes and lower HDL-cholesterol. Assigned male sex at birth, higher age at initiation of GAHT and use of cyproterone acetate are separate risk factors for adverse CVD markers. Metabolic and CVD outcomes may improve during gender-affirming care due to a reduction in minority stress, improved lifestyle and closer surveillance leading to optimised preventive medication (e.g. statins). GAHT should be individualised according to individual risk factors (i.e. drug, dose and form of administration); furthermore, doctors need to discuss lifestyle and preventive medications in order to modify metabolic and CVD risk during GAHT. Follow-up programmes must address the usual cardiovascular risk markers but should consider that biological age and sex may influence individual risk profiling including mental health, lifestyle and novel cardiovascular risk markers during GAHT.
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Affiliation(s)
- Dorte Glintborg
- Department of Endocrinology, Odense University Hospital, Odense, Denmark.
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.
| | - Louise L Christensen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Marianne S Andersen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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Lake JE, Feng H, Hyatt AN, Miao H, Debroy P, Funderburg N, Ailstock K, Dobs A, Haberlen S, Magnani JW, Margolick JB, McGowan K, Palella FJ, Witt MD, Bhasin S, Budoff MJ, Post WS, Brown TT. Transgender Women With Suppressed Testosterone Display Lower Burden of Coronary Disease Than Matched Cisgender Men. J Endocr Soc 2024; 8:bvae120. [PMID: 38974987 PMCID: PMC11223995 DOI: 10.1210/jendso/bvae120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Indexed: 07/09/2024] Open
Abstract
Context Cardiovascular disease (CVD) in transgender women (TW) may be affected by gender-affirming hormone therapy (GAHT) and HIV, but few data compare TW on contemporary GAHT to well-matched controls. Objective We compared CVD burden and biomarker profiles between TW and matched cisgender men (CM). Methods Adult TW on GAHT (n = 29) were recruited for a cross-sectional study (2018-2020). CM (n = 48) from the former Multicenter AIDS Cohort Study were matched 2:1 to TW on HIV serostatus, age ±5 years, race/ethnicity, BMI category and antiretroviral therapy (ART) type. Cardiac parameters were measured by CT and coronary atherosclerosis by coronary CT angiography; sex hormone and biomarker concentrations were measured centrally from stored samples. Results Overall, median age was 53 years and BMI 29 kg/m2; 69% were non-white. All participants with HIV (71%) had viral suppression on ART. Only 31% of TW had testosterone suppression (<50 ng/dL, TW-S). Traditional CVD risk factors were similar between groups, except that TW-S had higher BMI than TW with non-suppressed testosterone (TW-T). TW-S had no evidence of non-calcified coronary plaque or advanced coronary stenosis, whereas TW-T and CM had similar burden. TW had lower prevalence of any coronary plaque, calcified plaque and mixed plaque than CM, regardless of testosterone concentrations and HIV serostatus. Estradiol but not testosterone concentrations moderately and negatively correlated with the presence of coronary plaque and stenosis. Small sample size limited statistical power. Conclusion Older TW with suppressed total testosterone on GAHT had no CT evidence of non-calcified coronary plaque or advanced coronary stenosis. Longitudinal studies to understand relationships between GAHT and CVD risk in TW are needed.
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Affiliation(s)
- Jordan E Lake
- Department of Medicine, UTHealth Houston, Houston, TX 77030, USA
| | - Han Feng
- Tulane Research and Innovation for Arrhythmia Discoveries-TRIAD Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Ana N Hyatt
- Department of Medicine, UTHealth Houston, Houston, TX 77030, USA
| | - Hongyu Miao
- Department of Statistics and College of Nursing, Florida State University, Tallahassee, FL 32306, USA
| | - Paula Debroy
- Department of Medicine, UTHealth Houston, Houston, TX 77030, USA
| | - Nicholas Funderburg
- Division of Medical Laboratory Science, The Ohio State University, Columbus, OH 43210, USA
| | - Kate Ailstock
- Division of Medical Laboratory Science, The Ohio State University, Columbus, OH 43210, USA
| | - Adrian Dobs
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Sabina Haberlen
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jared W Magnani
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Joseph B Margolick
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kate McGowan
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Frank J Palella
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Mallory D Witt
- Department of Medicine, Lundquist Institute, Torrance, CA 90502, USA
| | - Shalender Bhasin
- Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Matthew J Budoff
- Department of Medicine, Lundquist Institute, Torrance, CA 90502, USA
| | - Wendy S Post
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Todd T Brown
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21218, USA
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Borger O, Perl L, Yackobovitch-Gavan M, Sides R, Brener A, Segev-Becker A, Sheppes T, Weinstein G, Oren A, Lebenthal Y. Body Composition and Metabolic Syndrome Components in Transgender/Gender Diverse Adolescents and Young Adults. LGBT Health 2024; 11:359-369. [PMID: 38557208 DOI: 10.1089/lgbt.2023.0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
Purpose: The objective of this study was to examine the association of designated sex at birth, body composition, and gender-affirming hormone treatment (GAHT) with the components of metabolic syndrome (MetS) (overweight/obesity, elevated blood pressure [BP], altered glucose metabolism, and dyslipidemia) in transgender/gender diverse (TGD) adolescents and young adults. Methods: TGD individuals underwent body composition studies by bioelectrical impedance analysis according to designated sex at birth, and their muscle-to-fat ratio (MFR) z-scores were calculated. Generalized estimating equations with binary logistic models (n = 326) were used to explore associations while adjusting for potential confounders. Results: A total of 55 TGD females and 111 TGD males, with mean age of 18 ± 1.9 years and median duration of GAHT of 1.4 years (interquartile range = 0.6-2.5), were enrolled. Overall, 118/166 (71%) of the TGD cohort showed evidence of at least one MetS component, with a significantly higher rate among TGD males compared with TGD females (91.1% vs. 50.9%, p < 0.001). TGD males were at increased odds for overweight/obesity, elevated/hypertensive BP, elevated triglycerides (TGs), and an atherogenic dyslipidemia index (TG/high-density lipoprotein cholesterol [HDL-c], TG:HDL-c). The odds of overweight/obesity increased by 44.9 for each standard deviation decrease in the MFR z-score, while the odds for an elevated TG:HDL-c index increased by 3.7. Psychiatric morbidity increased the odds for overweight/obesity by 2.89. Conclusions: After considering confounding variables, the TGD males on GAHT were found to be at an increased risk for cardiometabolic disease. Our observations support the importance of targeted medical nutrition intervention in this group of individuals.
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Affiliation(s)
- Ophir Borger
- The Institute of Pediatric Endocrinology and Diabetes, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- The Nutrition and Dietetics Unit, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Liat Perl
- The Institute of Pediatric Endocrinology and Diabetes, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Michal Yackobovitch-Gavan
- Department of Epidemiology and Preventive Medicine, School of Public Health, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Roni Sides
- The Nutrition and Dietetics Unit, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Avivit Brener
- The Institute of Pediatric Endocrinology and Diabetes, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Anat Segev-Becker
- The Institute of Pediatric Endocrinology and Diabetes, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Tamar Sheppes
- The Institute of Pediatric Endocrinology and Diabetes, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Psychological Services, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | | | - Asaf Oren
- The Institute of Pediatric Endocrinology and Diabetes, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- The Nutrition and Dietetics Unit, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Yael Lebenthal
- The Institute of Pediatric Endocrinology and Diabetes, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- The Nutrition and Dietetics Unit, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
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6
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Sánchez Amador L, Becerra Fernández A, Aguilar Vilas MV, Rodríguez Torres R, Alonso Rodríguez MC. Body composition and risk for sarcopenia in transgender women. Nutrition 2024; 123:112398. [PMID: 38521048 DOI: 10.1016/j.nut.2024.112398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/18/2024] [Accepted: 02/13/2024] [Indexed: 03/25/2024]
Abstract
OBJECTIVES Body composition and strength of cisgender (cis) individuals are well established. However, those for transgender women (trans women) undergoing gender-affirming hormone therapy remain unclear. This study aimed to detect possible body composition and strength variations related to sarcopenia. METHODS This was a cross-sectional comparative study of 37 trans women, 34 cis men, and 34 cis women. Body composition was measured in all individuals by bioelectrical impedance analysis; prehensile strength by dynamometry was studied in trans women. RESULTS In this study, trans women had higher body mass index values than cis individuals (P < 0.01). Fat mass was 41% higher for trans women than cis men. Muscle mass (MM) was lower in trans women than cis men (-10%), and higher than cis women (24%). Bone mass was lower in trans women than cis men and higher in cis women (P < 0.01). Trans women's prehensile strengths were 25.26 kg for the right hand and 24.8 kg for the left. Appendicular skeletal muscle mass was 23.63 kg, and appendicular skeletal muscle mass index was 8.14 kg. CONCLUSION Trans women undergoing gender-affirming hormone therapy show a tendency to adapt body compartments to those of cis women with increased fat mass and reduced muscle mass. Prehensile strength in trans women was close to the cutoff points for sarcopenia risk. Nutrition, physical activity, strength, and body composition are important to avoid the possible risk for sarcopenia. More studies along these lines are necessary, especially in older adults.
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Affiliation(s)
- Laura Sánchez Amador
- Food, Nutrition and Public Health Strategies Research Group, University of Alcala, Alcalá de Henares, Madrid, Spain.
| | - Antonio Becerra Fernández
- Food, Nutrition and Public Health Strategies Research Group, University of Alcala, Alcalá de Henares, Madrid, Spain; Department of Biomedical Sciences, Faculty of Pharmacy, University of Alcala, Alcalá de Henares, Madrid, Spain
| | - María Victorina Aguilar Vilas
- Food, Nutrition and Public Health Strategies Research Group, University of Alcala, Alcalá de Henares, Madrid, Spain; Department of Biomedical Sciences, Faculty of Pharmacy, University of Alcala, Alcalá de Henares, Madrid, Spain
| | - Rosa Rodríguez Torres
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcala, Alcalá de Henares, Madrid, Spain
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Singh S, Avila JT, Gorrell S. Charting a Path Toward Improving Detection and Clinical Outcomes for Eating Disorders in Cismales and Gender-Diverse Patients. FOCUS (AMERICAN PSYCHIATRIC PUBLISHING) 2024; 22:312-321. [PMID: 38988456 PMCID: PMC11231465 DOI: 10.1176/appi.focus.20230039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Historically, eating disorders (EDs) have been conceptualized from a female-centric lens. However, consistent research demonstrates that EDs afflict individuals across the gender spectrum, including cismales and gender-diverse individuals. Despite this evidence, a consensus regarding gender-sensitive assessment practices, theoretical formulations, and treatment considerations has yet to be established. The present review briefly summarizes research to date on the presentation of EDs in cismales and gender-diverse individuals, suggests appropriate assessment and treatment practices, and offers recommendations for gender-inclusive ED treatment. To effectively serve patients with EDs across the gender spectrum, more research is needed to validate gender-sensitive assessment tools, comprehensively study ED pathology within gender-representative samples, and conduct randomized controlled trials that serve cismales and gender-diverse patients. In doing so, clinicians and researchers may better detect EDs across the gender spectrum and implement gender-appropriate, evidence-based interventions, thereby reducing impairment and mortality related to EDs for all patients.
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Affiliation(s)
- Simar Singh
- Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco (Singh, Gorrell); Division of Adolescent Medicine, Department of Pediatrics, Stanford University, Palo Alto, California (Avila)
| | - Jonathan T Avila
- Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco (Singh, Gorrell); Division of Adolescent Medicine, Department of Pediatrics, Stanford University, Palo Alto, California (Avila)
| | - Sasha Gorrell
- Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco (Singh, Gorrell); Division of Adolescent Medicine, Department of Pediatrics, Stanford University, Palo Alto, California (Avila)
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8
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de Silva NL, Dimakopoulou A, Quinton O, Jayasena CN. Metabolic and cardiovascular risks of hormone treatment for transgender individuals. Best Pract Res Clin Endocrinol Metab 2024:101907. [PMID: 38942618 DOI: 10.1016/j.beem.2024.101907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/30/2024]
Abstract
Identifying metabolic and cardiovascular risks of gender-affirming hormone therapy (GAHT) is challenging due to other confounding variables that affect patient outcomes and the diversity of treatment regimes. Masculinising hormone therapy produces atherogenic lipid profiles, while effects on other metabolic parameters are not consistent. There is insufficient evidence to conclude if cardiovascular disease risk among transmen is increased. The effects of feminising hormone therapy on metabolic parameters do not demonstrate a consistent pattern in the available literature. However, the risk of venous thromboembolism is greater in transwomen than in cis-gender men and women with a possible increase in cardiovascular disease risk. It is recommended to discuss the potential effects of GAHT on cardiovascular health and encourage patients seeking GAHT to adopt a healthy lifestyle. Performing baseline and periodic assessments of cardiovascular risk factors would enable early identification and interventions. In high-risk individuals, the cardiovascular effects of hormonal regimes might impact the treatment decision.
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Affiliation(s)
- Nipun Lakshitha de Silva
- Department of Clinical Sciences, Faculty of Medicine, General Sir John Kotelawala Defence University, Sri Lanka; Department of Metabolism, Digestion and Reproduction, Imperial College, London, UK.
| | - Anastasia Dimakopoulou
- Tavistock and Portman NHS Foundation Trust, Gender Identity Clinic, Lief House, London, UK.
| | - Oliver Quinton
- Department of Metabolism, Digestion and Reproduction, Imperial College, London, UK.
| | - Channa N Jayasena
- Department of Metabolism, Digestion and Reproduction, Imperial College, London, UK.
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Fowler JA, Warzywoda S, Franks N, Mendis M, Lazarou M, Bisshop F, Wood P, Dean JA. Highs, Lows, and Hormones: A Qualitative Metasynthesis of Transgender Individuals' Experiences Undergoing Gender-Affirming Hormone Therapy. JOURNAL OF HOMOSEXUALITY 2024; 71:1652-1683. [PMID: 36884002 DOI: 10.1080/00918369.2023.2186759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Gender Affirming Hormone Therapy (GAHT) is a key therapeutic approach which aims to help trans and gender diverse (or simply "trans") individuals' transition from their sex-presumed-at-birth to their experienced gender identity. Previous reviews have focused on synthesizing quantitative experiences; however, a qualitative lens is important to understand the personal journey of GAHT. This review provides a qualitative meta-synthesis of the experiences of trans people around the world who have undergone GAHT to elicit contextualized understanding of the changes experienced. Systematic searches of eight databases identified an initial 2670 papers, refined to a final 28 papers. Overall, findings suggested that the GAHT journey is unique and elicited a myriad of changes which, whilst challenging at times, were life-changing and brought about positive psychological, physical, and social changes. Other themes explored GAHT not being treated as a fix-all for associated mental health issues, the rules that govern appraisal of physical changes, how privilege and social identity evolve, and the power of affirmation. This work offers important recommendations to improve the care offered to trans people undergoing GAHT. Namely, person-centered support is essential, and peer-navigation may be a useful future direction to explore.
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Affiliation(s)
- James A Fowler
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
| | - Sarah Warzywoda
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
| | - Nia Franks
- School of Psychology and Counselling, Faculty of Health, Engineering and Sciences, Centre for Health Research, Institute for Resilient Regions, University of Southern Queensland, Ipswich, Queensland, Australia
| | - Marini Mendis
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
| | - Mattea Lazarou
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
| | - Fiona Bisshop
- Holdsworth House Medical Practice, Brisbane, Queensland, Australia
| | - Penny Wood
- Alexander Heights Family Practice, Perth, Western Australia, Australia
| | - Judith A Dean
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, Queensland, Australia
- Poche Centre for Indigenous Health, The University of Queensland, Brisbane, Queensland, Australia
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Nokoff NJ, Bothwell S, Rice JD, Cree MG, Kelsey MM, Moreau KL, Zeitler P, Nadeau KJ. Insulin sensitivity, body composition and bone mineral density after testosterone treatment in transgender youth with and without prior GnRH agonist therapy. J Clin Transl Endocrinol 2024; 36:100356. [PMID: 38948245 PMCID: PMC11214195 DOI: 10.1016/j.jcte.2024.100356] [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: 12/01/2023] [Revised: 05/14/2024] [Accepted: 05/31/2024] [Indexed: 07/02/2024] Open
Abstract
Background 1.8% of youth identify as transgender; a growing proportion are transgender male (female sex, male gender identity). Many receive gonadotropin releasing hormone agonist (GnRHa) therapy to suppress endogenous puberty and/or will start testosterone to induce secondary sex characteristics that align with gender identity. Objectives To determine the effects of 12 months of testosterone on cardiometabolic health among transgender youth, including insulin sensitivity, body composition, and bone mineral density and whether changes in outcomes differ based on prior GnRHa treatment. Methods Participants (n = 19, baseline age 15.0 ± 1.0 years) were examined prior to and 12 months after testosterone therapy in a longitudinal observational study. Fasted morning blood draw, a 2-hour 75-gram oral glucose tolerance test, body composition and bone mineral density (dual-energy X-ray absorptiometry) were assessed at baseline and 12 months. Insulin sensitivity was estimated by HOMA-IR and Matsuda index. Changes were compared with mixed linear regression models evaluating time (baseline, 12 months), group (GnRHa treatment yes/no), and their interaction. Results In the entire cohort, fasted insulin decreased (median [25,75 %ile]: -3 [-5, 0] mIU/L, p = 0.044) and 2-hour glucose increased (mean ± standard deviation): +18.5 ± 28.9 mg/dL, p = 0.013 from baseline after 12 months of testosterone therapy. There were no significant changes in HOMA-IR (p = 0.062) or Matsuda index (p = 0.096), nor by GnRHa status. Absolute (+6.2 [4.7, 7.5] kg, p = 0.016) and percent fat-free mass increased (+7.3 [5.4, 9.1] %, p = 0.003) and percent fat mass declined (-7.4 [-9.3, 5.3]%, p = 0.005) for the entire cohort. There were time*group interactions for absolute (p = 0.0007) and percent fat-free mass (p = 0.033). There were time*group interactions for bone mineral content (p = 0.006). Conclusions Twelve months of testosterone in transgender adolescents resulted in changes in body composition and bone mineral density, with baseline differences between the +/-GnRHa group and convergence after 12 months. There were no changes in insulin sensitivity over time or between groups.
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Affiliation(s)
- Natalie J. Nokoff
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, 13123 E 16 Ave, Aurora, CO 80045, USA
- Ludeman Family Center for Women’s Health Research, USA
| | - Samantha Bothwell
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, 13123 E 16 Ave, Aurora, CO 80045, USA
| | - John D. Rice
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, 13123 E 16 Ave, Aurora, CO 80045, USA
- University of Michigan, Department of Biostatistics, USA
| | - Melanie G. Cree
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, 13123 E 16 Ave, Aurora, CO 80045, USA
- Ludeman Family Center for Women’s Health Research, USA
| | - Megan M. Kelsey
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, 13123 E 16 Ave, Aurora, CO 80045, USA
- Ludeman Family Center for Women’s Health Research, USA
| | - Kerrie L. Moreau
- Ludeman Family Center for Women’s Health Research, USA
- University of Colorado Anschutz Medical Campus, Department of Medicine, USA
| | - Philip Zeitler
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, 13123 E 16 Ave, Aurora, CO 80045, USA
| | - Kristen J. Nadeau
- University of Colorado Anschutz Medical Campus, Department of Pediatrics, 13123 E 16 Ave, Aurora, CO 80045, USA
- Ludeman Family Center for Women’s Health Research, USA
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11
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Ong C, Monita M, Liu M. Gender-affirming hormone therapy and cardiovascular health in transgender adults. Climacteric 2024; 27:227-235. [PMID: 38597210 DOI: 10.1080/13697137.2024.2310518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/20/2024] [Indexed: 04/11/2024]
Abstract
A growing number of people identify as transgender and gender non-binary in the USA and worldwide. Concomitantly, an increasing number of patients are receiving gender-affirming hormone therapy (GAHT) to achieve gender congruence. GAHT has far-ranging effects on clinical and subclinical markers of cardiovascular risk. Transgender patients also appear to be at higher risk for cardiovascular diseases compared to their cisgender peers and the impact of gender-affirming therapy on cardiovascular health is unclear. Studies on the effect of GAHT on cardiovascular outcomes are confounded by differences in GAHT regimens and methodological challenges in a diverse and historically hard-to-reach population. Current cardiovascular guidelines do not incorporate gender identity and hormone status into risk stratification and clinical decision-making. In this review, we provide an overview on the cardiometabolic impact and clinical considerations of GAHT for cardiovascular risk in transgender patients.
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Affiliation(s)
- Caroline Ong
- Division of Cardiology, Lenox Hill Hospital, Northwell Health, New York, NY, USA
| | - Monique Monita
- Department of Medicine, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Minghao Liu
- Department of Endocrinology, Lenox Hill Hospital, Northwell Health, New York, NY, USA
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12
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Iwamoto SJ, Rice JD, Moreau KL, Cornier MA, Wierman ME, Mancuso MP, Gebregzabheir A, Hammond DB, Rothman MS. The association of gender-affirming hormone therapy duration and body mass index on bone mineral density in gender diverse adults. J Clin Transl Endocrinol 2024; 36:100348. [PMID: 38756206 PMCID: PMC11096741 DOI: 10.1016/j.jcte.2024.100348] [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: 01/30/2024] [Revised: 03/23/2024] [Accepted: 04/29/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction Feminizing and masculinizing gender-affirming hormone therapy (fGAHT, mGAHT) results in bone mineral density (BMD) maintenance or improvement over time in transgender and gender diverse (TGD) adults. Mostly European TGD studies have explored GAHT's impact on BMD, but the association of BMI and BMD in TGD adults deserves further study. Objective To determine whether GAHT duration or BMI are associated with BMD and Z-scores among TGD young adults. Methods Cross-sectional study of nonsmoking TGD adults aged 18-40 years without prior gonadectomy or gonadotropin-releasing hormone agonist (GnRHa) therapy taking GAHT for > 1 year. BMD and Z-scores were collected from dual-energy x-ray absorptiometry. Associations between femoral neck, total hip, and lumbar spine BMDs and Z-scores and the predictors, GAHT duration and BMI, were estimated using linear regression. Results Among 15 fGAHT and 15 mGAHT, mean BMIs were 27.6 +/- standard deviation (SD) 6.4 kg/m2 and 25.3 +/- 5.9 kg/m2, respectively. Both groups had mean BMDs and Z-scores within expected male and female reference ranges at all three sites. Higher BMI among mGAHT was associated with higher femoral neck and total hip BMDs (femoral neck: β = 0.019 +/- standard error [SE] 0.007 g/cm2, total hip: β = 0.017 +/- 0.006 g/cm2; both p < 0.05) and Z-scores using male and female references. GAHT duration was not associated with BMDs or Z-scores for either group. Conclusions Z-scores in young, nonsmoking TGD adults taking GAHT for > 1 year, without prior gonadectomy or GnRHa, and with mean BMIs in the overweight range, were reassuringly within the expected ranges for age based on male and female references. Higher BMI, but not longer GAHT duration, was associated with higher femoral neck and total hip BMDs and Z-scores among mGAHT. Larger, prospective studies are needed to understand how body composition changes, normal or low BMIs, and gonadectomy affect bone density in TGD adults.
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Affiliation(s)
- Sean J. Iwamoto
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, 12801 E 17th Ave, 7103, Aurora, CO 80045, USA
- Endocrinology, Medicine and Research Services, Rocky Mountain Regional VA Medical Center, 1700 N Wheeling St, 111H, Aurora, CO 80045, USA
- UCHealth Integrated Transgender Program, University of Colorado Hospital, 1635 Aurora Court, Anschutz Outpatient Pavilion, 6th floor, Aurora, CO 80045, USA
| | - John D. Rice
- Department of Biostatistics, University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, MI 48109, USA
| | - Kerrie L. Moreau
- Division of Geriatrics, Department of Medicine, University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, 12631 E 17th Ave, 8111, Aurora, CO 80045, USA
- Geriatric Research Education and Clinical Center, VA Eastern Colorado Healthcare System, Rocky Mountain Regional VA Medical Center, 1700 N Wheeling St, Aurora, CO 80045, USA
| | - Marc-André Cornier
- Division of Endocrinology, Diabetes and Metabolic Diseases, Department of Medicine, Medical University of South Carolina, 96 Jonathan Lucas St, CSB 822, Charleston, SC 29425, USA
| | - Margaret E. Wierman
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, 12801 E 17th Ave, 7103, Aurora, CO 80045, USA
- Endocrinology, Medicine and Research Services, Rocky Mountain Regional VA Medical Center, 1700 N Wheeling St, 111H, Aurora, CO 80045, USA
| | - Mary P. Mancuso
- Division of General Internal Medicine, Department of Medicine, University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, 12631 E 17th Ave, Aurora, CO, 80045, USA
| | - Amanuail Gebregzabheir
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, 12801 E 17th Ave, 7103, Aurora, CO 80045, USA
| | - Daniel B. Hammond
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, 12801 E 17th Ave, 7103, Aurora, CO 80045, USA
- UCHealth Integrated Transgender Program, University of Colorado Hospital, 1635 Aurora Court, Anschutz Outpatient Pavilion, 6th floor, Aurora, CO 80045, USA
| | - Micol S. Rothman
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado School of Medicine, University of Colorado Anschutz Medical Campus, 12801 E 17th Ave, 7103, Aurora, CO 80045, USA
- UCHealth Integrated Transgender Program, University of Colorado Hospital, 1635 Aurora Court, Anschutz Outpatient Pavilion, 6th floor, Aurora, CO 80045, USA
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13
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Millington K, Lee JY, Olson-Kennedy J, Garofalo R, Rosenthal SM, Chan YM. Laboratory Changes During Gender-Affirming Hormone Therapy in Transgender Adolescents. Pediatrics 2024; 153:e2023064380. [PMID: 38567424 PMCID: PMC11035161 DOI: 10.1542/peds.2023-064380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/02/2024] [Indexed: 04/04/2024] Open
Abstract
OBJECTIVES Guidelines for monitoring of medications frequently used in the gender-affirming care of transgender and gender-diverse (TGD) adolescents are based on studies in adults or other medical conditions. In this study, we aimed to investigate commonly screened laboratory measurements in TGD adolescents receiving gender-affirming hormone therapy (GAHT). METHODS TGD adolescents were recruited from 4 study sites in the United States before beginning GAHT. Hemoglobin, hematocrit, hemoglobin A1c, alanine transaminase, aspartate aminotransferase, prolactin, and potassium were abstracted from the medical record at baseline and at 6, 12, and 24 months after starting GAHT. RESULTS Two-hundred and ninety-three participants (68% designated female at birth) with no previous history of gonadotropin-releasing hormone analog use were included in the analysis. Hemoglobin and hematocrit decreased in adolescents prescribed estradiol (-1.4 mg/dL and -3.6%, respectively) and increased in adolescents prescribed testosterone (+1.0 mg/dL and +3.9%) by 6 months after GAHT initiation. Thirteen (6.5%) participants prescribed testosterone had hematocrit > 50% during GAHT. There were no differences in hemoglobin A1c, alanine transaminase, or aspartate aminotransferase. There was a small increase in prolactin after 6 months of estradiol therapy in transfeminine adolescents. Hyperkalemia in transfeminine adolescents taking spironolactone was infrequent and transient if present. CONCLUSIONS Abnormal laboratory results are rare in TGD adolescents prescribed GAHT and, if present, occur within 6 months of GAHT initiation. Future guidelines may not require routine screening of these laboratory parameters beyond 6 months of GAHT in otherwise healthy TGD adolescents.
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Affiliation(s)
- Kate Millington
- Division of Pediatric Endocrinology and Adolescent Medicine, Hasbro Children’s Hospital, Providence, Rhode Island
- Department of Pediatrics, Warren Alpert Medical School of Brown University, Providence, Rhode Island
| | - Janet Y. Lee
- Division of Pediatric Endocrinology, Department of Pediatrics, University of California, San Francisco, San Francisco, California
- Division of Endocrinology & Metabolism, Department of Medicine, University of California, San Francisco, California
- Endocrine and Metabolism Section, San Francisco Veterans Affairs Health Care System, San Francisco, California
| | - Johanna Olson-Kennedy
- Division of Adolescent and Young Adult Medicine, Department of Pediatrics, Keck School of Medicine of University of Southern California, Los Angeles, California
| | - Robert Garofalo
- Division of Adolescent Medicine, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Stephen M. Rosenthal
- Division of Pediatric Endocrinology, Department of Pediatrics, University of California, San Francisco, San Francisco, California
| | - Yee-Ming Chan
- Division of Endocrinology, Department of Pediatrics, Boston Children’s Hospital, Boston, Massachusetts
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14
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Waters J, Linsenmeyer W. The impact of gender-affirming hormone therapy on nutrition-relevant biochemical measures. Front Nutr 2024; 11:1339311. [PMID: 38646103 PMCID: PMC11026707 DOI: 10.3389/fnut.2024.1339311] [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: 11/15/2023] [Accepted: 03/21/2024] [Indexed: 04/23/2024] Open
Abstract
Gender-affirming hormone therapy carries the potential risk for shifts in biochemical markers that may impact cardiometabolic, hematologic, hepatic, and renal health. The critical evaluation of biochemical data is an integral part of a comprehensive nutrition assessment; therefore, nutrition professionals should be aware of shifts that are expected during the course of masculinizing and feminizing hormone therapy. Changes in important biochemical values along with binary sex-specific standards for interpreting laboratory data can pose significant challenges for nutrition professionals working with transgender and gender-diverse patients who receive gender-affirming hormone therapy. Overall, research on the biochemical impact of masculinizing and feminizing hormone therapy is nascent and limited. Methodologies and outcomes measured are heterogenous across studies, introducing complexities that impede researchers from drawing definitive conclusions. In light of these limitations, this narrative review aims to describe the potential implications of masculinizing and feminizing hormone therapy regimens on biochemical measures that may influence nutrition strategies and interventions to promote optimal health.
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Affiliation(s)
- Jennifer Waters
- School of Health Studies, Northern Illinois University, Dekalb, IL, United States
| | - Whitney Linsenmeyer
- Department of Nutrition and Dietetics, Saint Louis University, Saint Louis, MO, United States
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15
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Panday P, Ejaz S, Gurugubelli S, Prathi SK, Palou Martinez Y, Arrey Agbor DB, Nath TS. Incidence of Type 2 Diabetes Mellitus in Transgender Individuals Undergoing Gender Affirming Hormonal Therapy: A Systematic Review. Cureus 2024; 16:e58137. [PMID: 38738018 PMCID: PMC11088936 DOI: 10.7759/cureus.58137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024] Open
Abstract
Gender-affirming hormonal therapy (GAHT), which includes estrogen, testosterone, androgen agonists, is commonly used in transgender individuals to change their secondary sexual characteristics to align with their gender identity. However, this treatment could result in metabolic side effects that could increase the chances of acquiring type 2 diabetes mellitus. Thus, this study aims to compare differences in body mass index (BMI), insulin resistance, and the incidence of type 2 diabetes mellitus between cisgender and transgender individuals undergoing GAHT. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standards, we conducted a systematic review searching through PubMed, Google Scholar, Medline (Medical Literature Analysis and Retrieval System Online), and ResearchGate for articles published between 2014 and 2024. The final search was conducted in February 2024. Out of the 3,934 articles reviewed, 11 were selected, focusing on insulin sensitivity/resistance, diabetes incidence, and BMI changes with GAHT. Although our result findings did not show clear evidence of increased diabetes incidence among GAHT patients, it was observed that GAHT does increase BMI and insulin resistance in transgender individuals. Notably, compared to transgender men, transgender women on GAHT were found to be more prone to insulin resistance. We recommend regularly monitoring insulin sensitivity parameters and HbA1c during GAHT to monitor metabolic side effects. Further research and more clinical trials are needed to confirm the GAHT's impact on insulin resistance and to evaluate its role in the onset of type 2 diabetes mellitus.
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Affiliation(s)
- Priyanka Panday
- Research, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Internal Medicine, Meharry Medical College, Nashville, USA
| | - Samrah Ejaz
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Simhachalam Gurugubelli
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Internal Medicine, Memorial Healthcare, Gulfport, USA
| | - Suviksh K Prathi
- Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Medicine, St. George's University School of Medicine, St. Georges, GRD
| | | | - Divine Besong Arrey Agbor
- Clinical Research and Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Internal Medicine, Richmond University Medical Center, Staten Island, USA
| | - Tuheen Sankar Nath
- Surgical Oncology, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Surgical Oncology, Tata Medical Centre, Kolkata, IND
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16
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Cortez S, Moog D, Lewis C, Williams K, Herrick C, Fields M, Gray T, Guo Z, Nicol G, Baranski T. Effectiveness and Safety of Different Estradiol Regimens in Transgender Women (TREAT Study): Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2023; 12:e53092. [PMID: 38133914 PMCID: PMC10770781 DOI: 10.2196/53092] [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: 09/25/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Current guidelines for gender-affirming hormone therapy (GAHT) for transgender women are mostly based on clinical experience from experts in the field and treatments used on postmenopausal women. While care is currently provided with the best available evidence, there is a critical gap in knowledge about the safest and most effective estradiol routes of administration for GAHT in transgender women; this statement is supported by the World Professional Association for Transgender Health on their Standards of Care for the Health of Transgender and Gender Diverse People, version 8. Furthermore, the reported rates of cardiometabolic adverse events in transgender women highlight the importance of investigating changes in lipoproteins, glucose, and insulin sensitivity, among other markers while receiving GAHT. OBJECTIVE This study aims to evaluate the degree of testosterone suppression achieved at 1, 6, and 12 months in treatment-naive transgender women when randomized to GAHT with estradiol and spironolactone as antiandrogens. As a secondary aim, this study will assess the treatment effect on metabolic and coagulation factors from baseline to 6 and 12 months after initiating GAHT. METHODS This is a prospective pilot, open-label, randomized clinical trial conducted at an adult transgender clinic in a tertiary medical center. The 3 treatment arms include once-daily sublingual 17-β estradiol, twice-daily sublingual 17-β estradiol, and transdermal 17-β estradiol. All participants received spironolactone as an antiandrogen. Transgender women aged 18 to 45 years who are being evaluated for the initiation of GAHT with 17-β estradiol and did not have a history of coagulopathy, cigarette smoking, liver disease, dyslipidemia requiring treatment, or use of gonadotropin-releasing hormone agonist were eligible to enroll. The main outcome is the total testosterone suppression at 1 and 6 months after the initiation of GAHT, and the secondary outcome is to assess treatment effect in a lipid panel; homeostatic model assessment for insulin resistance; coagulation factors II, IX, and XI; Von Willebrand factor; activated protein C resistance; protein C; and protein S at baseline, 6 months, and 12 months after therapy is initiated. RESULTS This study was funded in March 2022, and enrollment concluded in August 2022. It was concluded in July 2023, and currently, the results are being analyzed for publication. CONCLUSIONS The Transgender Estradiol Affirming Therapy (TREAT) study offers a rigorous and reproducible approach to answer important questions regarding GAHT in transgender women, specifically, the most effective 17-β estradiol regimen to suppress testosterone levels to 50 ng/dL, as currently recommended. TRIAL REGISTRATION ClinicalTrials.gov NCT05010707; https://clinicaltrials.gov/study/NCT05010707. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/53092.
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Affiliation(s)
- Samuel Cortez
- Division of Pediatric Endrocinology, Department of Pediatrics, Washington University School of Medicine, St Louis, MO, United States
| | - Dominic Moog
- Washington University School of Medicine, St Louis, MO, United States
| | - Christopher Lewis
- Division of Pediatric Endrocinology, Department of Pediatrics, Washington University School of Medicine, St Louis, MO, United States
| | - Kelley Williams
- Division of Endocrinology, Diabetes, and Lipid Metabolism, Department of Medicine, Washington University School of Medicine, St Louis, MO, United States
| | - Cynthia Herrick
- Division of Endocrinology, Diabetes, and Lipid Metabolism, Department of Medicine, Washington University School of Medicine, St Louis, MO, United States
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis, MO, United States
| | - Melanie Fields
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, Washington University School of Medicine, St Louis, MO, United States
- Department of Neurology, Washington University School of Medicine, St Louis, MO, United States
| | - Teddi Gray
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, United States
| | - Zhaohua Guo
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, United States
| | - Ginger Nicol
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, United States
| | - Thomas Baranski
- Division of Endocrinology, Diabetes, and Lipid Metabolism, Department of Medicine, Washington University School of Medicine, St Louis, MO, United States
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Yesildemir O, Akbulut G. Gender-Affirming Nutrition: An Overview of Eating Disorders in the Transgender Population. Curr Nutr Rep 2023; 12:877-892. [PMID: 37864747 DOI: 10.1007/s13668-023-00504-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2023] [Indexed: 10/23/2023]
Abstract
PURPOSE OF REVIEW Transgender individuals are vulnerable to many nutrition-related conditions, especially eating disorders due to gender dysphoria. This review aims to summarize the current literature on eating disorders in transgender individuals. The issues that should be considered in nutrition care for the transgender population are discussed regarding public health. RECENT FINDINGS Transgender individuals can exhibit disordered eating behaviors to overcome the stress they experience due to stigma, discrimination, social exclusion, and abuse. Recent studies showed that disordered eating and clinical eating disorders are more prevalent among transgender than cisgender people. It is very important for a multidisciplinary team working in the clinic to understand the epidemiology, etiology, diagnostic criteria, and treatment of eating disorders in the transgender population. However, multidisciplinary nutritional care is limited due to the lack of transgender-specific nutrition guidelines. It is safe to say that adhering to a generally healthy nutritional pattern and using standardized nutrition guidelines. We recommend that health professionals working with patients/clients with eating disorders receive continuing education in transgender health, be empowering and inclusive, address patients/clients with their gender identity nouns and pronouns, and develop nutritional treatment plans that are not gender-specific. Eating disorders are a significant public health problem in the transgender population. Therefore, clinical screening and early intervention are necessary to identify and treat eating disorders in transgender people. Eating disorders in the transgender population should be monitored routinely, and gender-affirming care should be provided as well as treatment of eating disorders.
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Affiliation(s)
- Ozge Yesildemir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Bursa Uludag University, Bursa, 16059, Turkey.
| | - Gamze Akbulut
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Istanbul Kent University, Istanbul, 34433, Turkey
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18
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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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19
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Lake JE, Miao H, Bowman ER, Clark JL, Hyatt AN, Kettelhut A, Lama JR, Reisner SL, Mayer KH, Perez-Brumer A, Funderburg N. Gender-affirming hormone therapy decreases d-dimer but worsens insulin sensitivity in transgender women. HIV Med 2023; 24:1144-1149. [PMID: 37386803 PMCID: PMC10755063 DOI: 10.1111/hiv.13522] [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: 04/21/2023] [Accepted: 06/12/2023] [Indexed: 07/01/2023]
Abstract
OBJECTIVES Gender-affirming hormonal therapies (GAHT) and HIV increase cardiovascular risk for transgender women (TW), yet there is a paucity of data quantifying cardiometabolic changes following GAHT initiation, particularly among TW with HIV. METHODS The Féminas study enrolled TW from October 2016 to March 2017 in Lima, Peru. Participants reported sexual activity that was high risk for HIV acquisition or transmission. All were tested for HIV/ sexually transmitted infection and were given access to GAHT (oestradiol valerate and spironolactone), HIV pre-exposure prophylaxis (PrEP) or antiretroviral therapy (ART) for 12 months. Biomarker measurement was done on stored serum, whereas fasting glucose and lipids were measured in real time. RESULTS In all, 170 TW (32 with HIV, 138 without HIV) had median age 27 years and 70% prior GAHT use. At baseline, PCSK9, sCD14, sCD163, IL-6, sTNFRI/II, CRP and EN-RAGE levels were significantly higher in TW with HIV than in TW without HIV. High-density lipoprotein and total cholesterol were lower and insulin and glucose parameters were similar. All TW with HIV started ART, but only five achieved virological suppression at any time. No TW without HIV initiated PrEP. Over 6 months, all participants initiated GAHT and had worsening insulin, glucose and HOMA-IR. Large d-dimer decreases also occurred. Similar changes occurred in TW with and without HIV. CONCLUSIONS In this unique cohort of TW, GAHT decreased d-dimer but worsened insulin sensitivity. Because PrEP uptake and ART adherence were very low, observed effects are primarily attributed to GAHT use. Further study is needed to better understand cardiometabolic changes in TW by HIV serostatus.
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Affiliation(s)
- Jordan E. Lake
- University of Texas Health Science Center at Houston, 6431 Fannin St. MSB 2.112, Houston, TX 77030, USA
| | - Hongyu Miao
- Florida State University, 600 W College Ave, Tallahassee, FL 32306, USA
| | - Emily R. Bowman
- The Ohio State University, 453 West 10 Ave, Columbus, OH 43210, USA
| | - Jesse L. Clark
- University of California, Los Angeles, 405 Hilgard Ave., Los Angeles 90095, CA, USA
| | - Ana N. Hyatt
- University of Texas Health Science Center at Houston, 6431 Fannin St. MSB 2.112, Houston, TX 77030, USA
| | - Aaren Kettelhut
- The Ohio State University, 453 West 10 Ave, Columbus, OH 43210, USA
| | - Javier R. Lama
- Asociación Civil Impacta Salud y Educación, Av. Almte. Miguel Grau 1010, Lima 15063, Peru
| | - Sari L. Reisner
- Brigham and Women’s Hospital, 75 Francis St, Boston, MA 02115, USA
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Sánchez-Toscano E, Domínguez-Riscart J, Larrán-Escandón L, Mateo-Gavira I, Aguilar-Diosdado M. Cardiovascular Risk Factors in Transgender People after Gender-Affirming Hormone Therapy. J Clin Med 2023; 12:6141. [PMID: 37834785 PMCID: PMC10573211 DOI: 10.3390/jcm12196141] [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: 08/15/2023] [Revised: 09/06/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
INTRODUCTION In the last decade, healthcare for the transgender population has increased considerably in many countries thanks to depathologization movements and the easier accessibility of medical assistance. The age at which they request to start gender-affirming hormones (GAHs) is increasingly younger. The cardiovascular risk associated with hormonal treatment is a novel research field, and the published studies are heterogeneous and inconclusive. Our objective is to determine the metabolic impact of GAHs in the transgender people treated in our Gender Identity Treatment Unit. METHODS We designed a pre-post study to analyze changes in anthropometric parameters (weight and body mass index), analytical determinations (fasting blood glucose, glycated hemoglobin, and lipoproteins), and blood pressure control in the transgender population treated with GAHs in Puerta del Mar University Hospital. These variables were collected before and one year after hormonal therapy. RESULTS A total of 227 transgender people were recruited between 2017 and 2020, 97 (40.09%) transwomen and 136 (59.91%) transmen. The average age at which GAHs began was 18 years. Weight, body mass index, and blood pressure increased significantly in both genders. Transmen showed a more atherogenic lipid profile, with a decrease in cholesterol LDL (p < 0.001) and an increase in triglycerides (p < 0.001). The risk of developing prediabetes or diabetes did not increase one year after treatment, although non-specific alterations in carbohydrate metabolism were detected, such as an increase in glycated hemoglobin in transmen (p = 0.040) and fasting blood glucose in transwomen (p = 0.008). No thromboembolic processes or cardiovascular events were reported during the first year of treatment. CONCLUSION In our setting, transgender people developed changes in their metabolic profiles in the first year after hormonal treatment. Both transmen and transwomen showed early alterations in lipid and carbohydrate metabolism, slight elevations in blood pressure, and a tendency to gain weight. This makes lifestyle interventions necessary from the beginning of GAHs.
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Affiliation(s)
- Esteban Sánchez-Toscano
- Endocrinology and Nutrition Department, Puerta del Mar University Hospital, 11009 Cádiz, Spain; (E.S.-T.); (L.L.-E.); (M.A.-D.)
- Biomedical Research and Innovation Institute of Cádiz (INiBICA), 11009 Cádiz, Spain;
| | - Jesús Domínguez-Riscart
- Biomedical Research and Innovation Institute of Cádiz (INiBICA), 11009 Cádiz, Spain;
- Pediatrics and Specific Areas Department, Puerta del Mar University Hospital, 11009 Cádiz, Spain
| | - Laura Larrán-Escandón
- Endocrinology and Nutrition Department, Puerta del Mar University Hospital, 11009 Cádiz, Spain; (E.S.-T.); (L.L.-E.); (M.A.-D.)
| | - Isabel Mateo-Gavira
- Endocrinology and Nutrition Department, Puerta del Mar University Hospital, 11009 Cádiz, Spain; (E.S.-T.); (L.L.-E.); (M.A.-D.)
- Biomedical Research and Innovation Institute of Cádiz (INiBICA), 11009 Cádiz, Spain;
| | - Manuel Aguilar-Diosdado
- Endocrinology and Nutrition Department, Puerta del Mar University Hospital, 11009 Cádiz, Spain; (E.S.-T.); (L.L.-E.); (M.A.-D.)
- Biomedical Research and Innovation Institute of Cádiz (INiBICA), 11009 Cádiz, Spain;
- School of Medicine, Cadiz University (UCA), 11003 Cádiz, Spain
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21
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Doan D, Sharma Y, Veneros DL, Caceres BA. Caring for Sexual and Gender Minority Adults with Cardiovascular Disease. Nurs Clin North Am 2023; 58:461-473. [PMID: 37536792 DOI: 10.1016/j.cnur.2023.05.010] [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: 08/05/2023]
Abstract
This article summarizes existing evidence on cardiovascular disease (CVD) risk and CVD diagnoses among sexual and gender minority adults and provides recommendations for providing nursing care to sexual and gender minority adults with CVD. More research is needed to develop evidence-based strategies to care for sexual and gender minority adults with CVD.
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Affiliation(s)
- Danny Doan
- Center for Sexual and Gender Minority Health Research, Columbia University School of Nursing, 560 West 168th Street, New York, NY 10032, USA
| | - Yashika Sharma
- Center for Sexual and Gender Minority Health Research, Columbia University School of Nursing, 560 West 168th Street, New York, NY 10032, USA
| | - David López Veneros
- Center for Sexual and Gender Minority Health Research, Columbia University School of Nursing, 560 West 168th Street, New York, NY 10032, USA
| | - Billy A Caceres
- Center for Sexual and Gender Minority Health Research, Columbia University School of Nursing, 560 West 168th Street, New York, NY 10032, USA.
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22
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Round R, Gokool N, Manica G, Paschall L, Foulcer S. Improving access for and experience of transgender and non-binary patients in clinical research: Insights from a transgender patient focus group and targeted literature reviews. Contemp Clin Trials 2023; 131:107243. [PMID: 37245727 DOI: 10.1016/j.cct.2023.107243] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 05/30/2023]
Abstract
INTRODUCTION The transgender and non-binary communities make up a significant, growing proportion of the population, but, to date, few clinical trials report including transgender and non-binary individuals. METHODS As part of a mixed-method approach, multiple literature searches for articles published from January 2018 to July 2022 and a Patient Advisory Council (a semi-structured patient focus group) meeting were conducted to identify challenges faced by the transgender and non-binary communities when accessing healthcare and participating in clinical research. A set of guidelines to promote inclusivity in clinical research was developed using these findings. RESULTS During this time period, only 107 (0.08%) of 141,661 published articles of clinical trials reported participation of transgender or non-binary patients. A targeted search identified only 48 articles reporting specific barriers to inclusion in clinical research, while an expanded search identified 290 articles reporting barriers to healthcare access for transgender and non-binary patients. Several key considerations to promote study inclusivity emerged from the literature searches and Patient Advisory Council: adjust clinical protocols, informed consent documents, and data collection forms to distinguish sex assigned at birth from gender identity; involve members of the transgender and non-binary communities in research whenever possible; provide communication training to personnel involved in clinical research; and maximize accessibility for potential participants. CONCLUSION Future research on investigational drug dosing and drug interactions in transgender and non-binary patients, along with regulatory guidance, are recommended to ensure clinical trials' processes, designs, systems, and technologies are transgender and non-binary patient-friendly, inclusive, and welcoming.
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23
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Moreland E, Cheung AS, Hiam D, Nolan BJ, Landen S, Jacques M, Eynon N, Jones P. Implications of gender-affirming endocrine care for sports participation. Ther Adv Endocrinol Metab 2023; 14:20420188231178373. [PMID: 37323162 PMCID: PMC10262668 DOI: 10.1177/20420188231178373] [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: 08/31/2022] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
Many transgender (trans) individuals utilize gender-affirming hormone therapy (GAHT) to promote changes in secondary sex characteristics to affirm their gender. Participation rates of trans people in sport are exceedingly low, yet given high rates of depression and increased cardiovascular risk, the potential benefits of sports participation are great. In this review, we provide an overview of the evidence surrounding the effects of GAHT on multiple performance-related phenotypes, as well as current limitations. Whilst data is clear that there are differences between males and females, there is a lack of quality evidence assessing the impact of GAHT on athletic performance. Twelve months of GAHT leads to testosterone concentrations that align with reference ranges of the affirmed gender. Feminizing GAHT in trans women increases fat mass and decreases lean mass, with opposite effects observed in trans men with masculinizing GAHT. In trans men, an increase in muscle strength and athletic performance is observed. In trans women, muscle strength is shown to decrease or not change following 12 months of GAHT. Haemoglobin, a measure of oxygen transport, changes to that of the affirmed gender within 6 months of GAHT, with very limited data to suggest possible reductions in maximal oxygen uptake as a result of feminizing GAHT. Current limitations of this field include a lack of long-term studies, adequate group comparisons and adjustment for confounding factors (e.g. height and lean body mass), and small sample sizes. There also remains limited data on endurance, cardiac or respiratory function, with further longitudinal studies on GAHT needed to address current limitations and provide more robust data to inform inclusive and fair sporting programmes, policies and guidelines.
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Affiliation(s)
- Ethan Moreland
- Institute for Health and Sport (IHeS), Victoria University, Footscray, VIC, Australia
| | - Ada S. Cheung
- Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, VIC, Australia
- Department of Endocrinology, Austin Health, Heidelberg, VIC, Australia
| | - Danielle Hiam
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Brendan J. Nolan
- Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, VIC, Australia
- Department of Endocrinology, Austin Health, Heidelberg, VIC, Australia
| | - Shanie Landen
- Institute for Health and Sport (IHeS), Victoria University, Footscray, VIC, Australia
| | - Macsue Jacques
- Institute for Health and Sport (IHeS), Victoria University, Footscray, VIC, Australia
| | - Nir Eynon
- Institute for Health and Sport (IHeS), Victoria University, Footscray, VIC, Australia
| | - Patrice Jones
- Institute for Health and Sport (IHeS), Victoria University, Ballarat Road, Footscray, VIC 3011, Australia
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24
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Pribish AM, Iwamoto SJ. Cardiovascular disease and feminizing gender-affirming hormone therapy: Implications for the provision of safe and lifesaving care. CURRENT OPINION IN PHYSIOLOGY 2023; 33:100650. [PMID: 36968433 PMCID: PMC10035588 DOI: 10.1016/j.cophys.2023.100650] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Sex recorded at birth, gender identity, and feminizing gender-affirming hormone therapy (fGAHT) likely contribute to cardiovascular disease (CVD) risk in transgender women. Understanding the interplay of these factors is necessary for the provision of safe, affirming, and lifesaving care. Among transgender women taking fGAHT, data show increases in CVD mortality and rates of myocardial infarction, stroke, and venous thromboembolism compared to reference populations, depending on study design and comparators. However, most studies are observational with a paucity of contextualizing information (e.g., dosing, route of administration, gonadectomy status), which makes it difficult to parse adverse fGAHT effects from confounders and interaction with known CVD risk factors (e.g., obesity, smoking, psychosocial and gender minority stressors). Increased CVD risk in transgender women points toward a need for greater attention to CVD management in this population including cardiology referral when indicated and additional research on the mechanisms and mediators of CVD risk.
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Affiliation(s)
- Abby M. Pribish
- Division of Cardiology, Department of Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, 12631 East 17 Avenue, B130, Aurora, CO, 80045, USA
| | - Sean J. Iwamoto
- Division of Endocrinology, Metabolism and Diabetes, University of Colorado School of Medicine, Anschutz Medical Campus, 12801 East 17 Avenue, Mail Stop: 8106, Aurora, CO, 80045, USA
- Endocrinology Service, Medicine Service, Rocky Mountain Regional Veterans Affairs Medical Center, Eastern Colorado Health Care System, 1700 North Wheeling Street, Aurora, CO, 80045, USA
- UCHealth Integrated Transgender Program, 1635 Aurora Court, Anschutz Outpatient Pavilion, 6 Floor (Diabetes and Endocrinology Clinic), Aurora, CO, 80045, USA
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25
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Basit A, Amory JK, Mettu VS, Li CY, Heyward S, Jariwala PB, Redinbo MR, Prasad B. Relevance of Human Aldoketoreductases and Microbial β-Glucuronidases in Testosterone Disposition. Drug Metab Dispos 2023; 51:427-435. [PMID: 36623880 PMCID: PMC10043941 DOI: 10.1124/dmd.122.000975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 11/06/2022] [Accepted: 12/06/2022] [Indexed: 01/11/2023] Open
Abstract
Testosterone exhibits high variability in pharmacokinetics and glucuronidation after oral administration. Although testosterone metabolism has been studied for decades, the impact of UGT2B17 gene deletion and the role of gut bacterial β-glucuronidases on its disposition are not well characterized. We first performed an exploratory study to investigate the effect of UGT2B17 gene deletion on the global liver proteome, which revealed significant increases in proteins from multiple biological pathways. The most upregulated liver proteins were aldoketoreductases [AKR1D1, AKR1C4, AKR7A3, AKR1A1, and 7-dehydrocholesterol reductase (DHCR7)] and alcohol or aldehyde dehydrogenases (ADH6, ADH1C, ALDH1A1, ALDH9A1, and ALDH5A). In vitro assays revealed that AKR1D1 and AKR1C4 inactivate testosterone to 5β-dihydrotestosterone (5β-DHT) and 3α,5β-tetrahydrotestosterone (3α,5β-THT), respectively. These metabolites also appeared in human hepatocytes treated with testosterone and in human serum collected after oral testosterone dosing in men. Our data also suggest that 5β-DHT and 3α, 5β-THT are then eliminated through glucuronidation by UGT2B7 in UGT2B17 deletion individuals. Second, we evaluated the potential reactivation of testosterone glucuronide (TG) after its secretion into the intestinal lumen. Incubation of TG with purified gut microbial β-glucuronidase enzymes and with human fecal extracts confirmed testosterone reactivation into testosterone by gut bacterial enzymes. Both testosterone metabolic switching and variable testosterone activation by gut microbial enzymes are important mechanisms for explaining the disposition of orally administered testosterone and appear essential to unraveling the molecular mechanisms underlying UGT2B17-associated pathophysiological conditions. SIGNIFICANCE STATEMENT: This study investigated the association of UGT2B17 gene deletion and gut bacterial β-glucuronidases with testosterone disposition in vitro. The experiments revealed upregulation of AKR1D1 and AKR1C4 in UGT2B17 deletion individuals, and the role of these enzymes to inactivate testosterone to 5β-dihydrotestosterone and 3α, 5β-tetrahydrotestosterone, respectively. Key gut bacterial species responsible for testosterone glucuronide activation were identified. These data are important for explaining the disposition of exogenously administered testosterone and appear essential to unraveling the molecular mechanisms underlying UGT2B17-associated pathophysiological conditions.
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Affiliation(s)
- Abdul Basit
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
| | - John K Amory
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
| | - Vijaya Saradhi Mettu
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
| | - Cindy Yanfei Li
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
| | - Scott Heyward
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
| | - Parth B Jariwala
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
| | - Matthew R Redinbo
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
| | - Bhagwat Prasad
- Department of Pharmaceutical Sciences, Washington State University, Spokane, Washington (A.B., V.S.M., B.P.); Departments of Medicine (J.K.A.) and Pharmaceutics (C.Y.L.), University of Washington, Seattle, Washington; BioIVT Inc., Baltimore, Maryland (S.H.); and Departments of Chemistry, Biochemistry, and Microbiology and the Integrated Program for Biological and Genome Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (P.B.J., M.R.R.)
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Raths F, Karimzadeh M, Ing N, Martinez A, Yang Y, Qu Y, Lee TY, Mulligan B, Devkota S, Tilley WT, Hickey TE, Wang B, Giuliano AE, Bose S, Goodarzi H, Ray EC, Cui X, Knott SR. The molecular consequences of androgen activity in the human breast. CELL GENOMICS 2023; 3:100272. [PMID: 36950379 PMCID: PMC10025454 DOI: 10.1016/j.xgen.2023.100272] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/20/2022] [Accepted: 01/30/2023] [Indexed: 03/24/2023]
Abstract
Estrogen and progesterone have been extensively studied in the mammary gland, but the molecular effects of androgen remain largely unexplored. Transgender men are recorded as female at birth but identify as male and may undergo gender-affirming androgen therapy to align their physical characteristics and gender identity. Here we perform single-cell-resolution transcriptome, chromatin, and spatial profiling of breast tissues from transgender men following androgen therapy. We find canonical androgen receptor gene targets are upregulated in cells expressing the androgen receptor and that paracrine signaling likely drives sex-relevant androgenic effects in other cell types. We also observe involution of the epithelium and a spatial reconfiguration of immune, fibroblast, and vascular cells, and identify a gene regulatory network associated with androgen-induced fat loss. This work elucidates the molecular consequences of androgen activity in the human breast at single-cell resolution.
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Affiliation(s)
- Florian Raths
- Center for Bioinformatics and Functional Genomics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Mehran Karimzadeh
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
- Vector Institute, Toronto, ON, Canada
- Peter Munk Cardiac Centre, University Health Network, Toronto, ON, Canada
- Department of Urology, University of California, San Francisco, San Francisco, CA, USA
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
- Bakar Computational Health Sciences Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Nathan Ing
- Center for Bioinformatics and Functional Genomics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Andrew Martinez
- Center for Bioinformatics and Functional Genomics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Yoona Yang
- Center for Bioinformatics and Functional Genomics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ying Qu
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Tian-Yu Lee
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Brianna Mulligan
- Center for Bioinformatics and Functional Genomics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Suzanne Devkota
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Wayne T. Tilley
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
- Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide, SA, Australia
| | - Theresa E. Hickey
- Dame Roma Mitchell Cancer Research Laboratories, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Bo Wang
- Vector Institute, Toronto, ON, Canada
- Peter Munk Cardiac Centre, University Health Network, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Computer Science, University of Toronto, Toronto, ON, Canada
| | | | - Shikha Bose
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Hani Goodarzi
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, San Francisco, CA, USA
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
- Bakar Computational Health Sciences Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Edward C. Ray
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Transgender Surgery and Health Program, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Xiaojiang Cui
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Simon R.V. Knott
- Center for Bioinformatics and Functional Genomics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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27
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Berni AC, Wamboldt R, Baranchuk A. Arrhythmias in transgender individuals. ARCHIVOS DE CARDIOLOGIA DE MEXICO 2023; 93:18-22. [PMID: 37992702 PMCID: PMC10665108 DOI: 10.24875/acm.m23000089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 09/07/2023] [Indexed: 11/24/2023] Open
Abstract
The need to improve access to health services for the transgender community has become evident, especially concerning cardiovascular risk, which is higher compared to the general population. Surgical procedures and hormone therapies are common in this population to affirm gender identity, but they pose challenges as they are associated with disruptions in lipid metabolism, body fat concentration, and insulin resistance. Additionally, there is an increased risk of adverse cardiovascular events such as venous thromboembolism, stroke, and myocardial infarction. The influence of sex hormones on the electrophysiological properties of the heart has been studied, highlighting gender differences that may predispose the transgender population to cardiac arrhythmias. Exogenous hormone therapy, for both transgender women and men, can affect the QT interval and increase the risk of arrhythmias, including atrial fibrillation. Although the incidence of arrhythmias in the transgender population is not entirely clear, evidence suggests the need for careful cardiovascular monitoring and consideration of risk factors before initiating hormone therapies.
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Affiliation(s)
- Ana C. Berni
- Departamento de Cardiología, Laboratorio de Arritmias, Hospital Ángeles Pedregal, Ciudad de México, México
| | - Rachel Wamboldt
- Departamento de Cardiología, Kingston Health Science Center, Queen’s University, Kingston, Canada
| | - Adrián Baranchuk
- Departamento de Cardiología, Kingston Health Science Center, Queen’s University, Kingston, Canada
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28
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Iwamoto SJ, Defreyne J, Kaoutzanis C, Davies RD, Moreau KL, Rothman MS. Gender-affirming hormone therapy, mental health, and surgical considerations for aging transgender and gender diverse adults. Ther Adv Endocrinol Metab 2023; 14:20420188231166494. [PMID: 37113210 PMCID: PMC10126651 DOI: 10.1177/20420188231166494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 03/13/2023] [Indexed: 04/29/2023] Open
Abstract
As the transgender and gender diverse (TGD) population ages, more transfeminine and transmasculine individuals present to clinic to initiate or continue their gender-affirming care at older ages. Currently available guidelines on gender-affirming care are excellent resources for the provision of gender-affirming hormone therapy (GAHT), primary care, surgery, and mental health care but are limited in their scope as to whether recommendations require tailoring to older TGD adults. Data that inform guideline-recommended management considerations, while informative and increasingly evidence-based, mainly come from studies of younger TGD populations. Whether results from these studies, and therefore recommendations, can or should be extrapolated to aging TGD adults remains to be determined. In this perspective review, we acknowledge the lack of data in older TGD adults and discuss considerations for evaluating cardiovascular disease, hormone-sensitive cancers, bone health and cognitive health, gender-affirming surgery, and mental health in the older TGD population on GAHT.
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Affiliation(s)
| | - Justine Defreyne
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Christodoulos Kaoutzanis
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- UCHealth Integrated Transgender Program – Anschutz Medical Campus, Aurora, CO, USA
| | - Robert D. Davies
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- CUMedicine LGBTQ Mental Health Clinic, University of Colorado Hospital, Aurora, CO, USA
- UCHealth Integrated Transgender Program – Anschutz Medical Campus, Aurora, CO, USA
| | - Kerrie L. Moreau
- Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- Eastern Colorado Geriatric Research Education and Clinical Center, Rocky Mountain Regional VA Medical Center, Aurora, CO, USA
| | - Micol S. Rothman
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
- UCHealth Integrated Transgender Program – Anschutz Medical Campus, Aurora, CO, USA
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Bays HE, Gonsahn-Bollie S, Younglove C, Wharton S. Obesity Pillars Roundtable: Body mass index and body composition in Black and Female individuals. Race-relevant or racist? Sex-relevant or sexist? OBESITY PILLARS 2022; 4:100044. [PMID: 37990673 PMCID: PMC10662008 DOI: 10.1016/j.obpill.2022.100044] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 11/23/2023]
Abstract
Background Body mass index (BMI or weight in kilograms/height in meters2) is the most common metric to diagnose overweight and obesity. However, a body composition analysis more thoroughly assesses adiposity, percent body fat, lean body mass (i.e., including skeletal muscle), and sometimes bone mineral density. BMI is not an accurate assessment of body fat in individuals with increased or decreased muscle mass; the diagnostic utility of BMI in individuals is also influenced by race and sex. Methods Previous Obesity Pillars Roundtables addressed the diagnostic limitations of BMI, the importance of android and visceral fat (especially among those with South and East Asian ancestry), and considerations of obesity among individuals who identify as Hispanic, diverse in sexual-orientation, Black, Native American, and having ancestry from the Mediterranean and Middle East regions. This roundtable examines considerations of BMI in Black and female individuals. Results The panelists agreed that body composition assessment was a more accurate measure of adiposity and muscle mass than BMI. When it came to matters of race and sex, one panelist felt: "race is a social construct and not a defining biology." Another felt that: "BMI should be a screening tool to prompt further evaluation of adiposity that utilizes better diagnostic tools for body composition." Regarding bias and misperceptions of resistance training in female individuals, another panelist stated: "I have spent my entire medical career taking care of women and have never seen a woman unintentionally gain 'too much' muscle mass and bulk up from moderate strength training." Conclusions Conveying the importance of race and sex regarding body composition has proven challenging, with the discussion sometimes devolving into misunderstandings or misinformation that may be perceived as racist or sexist. Body composition analysis is the ultimate diagnostic equalizer in addressing the inaccuracies and biases inherent in the exclusive use of BMI.
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Affiliation(s)
- Harold Edward Bays
- American Board of Obesity Medicine, Medical Director / President Louisville Metabolic and Atherosclerosis Research Center Clinical Associate Professor / University of Louisville Medical School, 3288 Illinois Avenue Louisville KY, 40213, USA
| | - Sylvia Gonsahn-Bollie
- American Board of Obesity Medicine, Embrace You Weight & Wellness Founder, Black Physicians Healthcare Network, Council of Black Obesity Physicians Founding Member, 8705 Colesville Rd Suite 103, Silver Spring, MD, 20910, USA
| | - Courtney Younglove
- American Board of Obesity Medicine, Founder/Medical Director: Heartland Weight Loss, 14205 Metcalf Avenue Overland Park, KS, 66223, USA
| | - Sean Wharton
- McMaster University, York University, University of Toronto Wharton Medical Clinic 2951 Walker’s Line, Burlington,Ontario, Canada
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Lamri A, De Paoli M, De Souza R, Werstuck G, Anand S, Pigeyre M. Insight into genetic, biological, and environmental determinants of sexual-dimorphism in type 2 diabetes and glucose-related traits. Front Cardiovasc Med 2022; 9:964743. [PMID: 36505380 PMCID: PMC9729955 DOI: 10.3389/fcvm.2022.964743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/21/2022] [Indexed: 11/25/2022] Open
Abstract
There is growing evidence that sex and gender differences play an important role in risk and pathophysiology of type 2 diabetes (T2D). Men develop T2D earlier than women, even though there is more obesity in young women than men. This difference in T2D prevalence is attenuated after the menopause. However, not all women are equally protected against T2D before the menopause, and gestational diabetes represents an important risk factor for future T2D. Biological mechanisms underlying sex and gender differences on T2D physiopathology are not yet fully understood. Sex hormones affect behavior and biological changes, and can have implications on lifestyle; thus, both sex-specific environmental and biological risk factors interact within a complex network to explain the differences in T2D risk and physiopathology in men and women. In addition, lifetime hormone fluctuations and body changes due to reproductive factors are generally more dramatic in women than men (ovarian cycle, pregnancy, and menopause). Progress in genetic studies and rodent models have significantly advanced our understanding of the biological pathways involved in the physiopathology of T2D. However, evidence of the sex-specific effects on genetic factors involved in T2D is still limited, and this gap of knowledge is even more important when investigating sex-specific differences during the life course. In this narrative review, we will focus on the current state of knowledge on the sex-specific effects of genetic factors associated with T2D over a lifetime, as well as the biological effects of these different hormonal stages on T2D risk. We will also discuss how biological insights from rodent models complement the genetic insights into the sex-dimorphism effects on T2D. Finally, we will suggest future directions to cover the knowledge gaps.
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Affiliation(s)
- Amel Lamri
- Department of Medicine, McMaster University, Hamilton, ON, Canada,Population Health Research Institute (PHRI), Hamilton, ON, Canada
| | - Monica De Paoli
- Department of Medicine, McMaster University, Hamilton, ON, Canada,Thrombosis and Atherosclerosis Research Institute (TaARI), Hamilton, ON, Canada
| | - Russell De Souza
- Population Health Research Institute (PHRI), Hamilton, ON, Canada,Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Geoff Werstuck
- Department of Medicine, McMaster University, Hamilton, ON, Canada,Thrombosis and Atherosclerosis Research Institute (TaARI), Hamilton, ON, Canada
| | - Sonia Anand
- Department of Medicine, McMaster University, Hamilton, ON, Canada,Population Health Research Institute (PHRI), Hamilton, ON, Canada,Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada
| | - Marie Pigeyre
- Department of Medicine, McMaster University, Hamilton, ON, Canada,Population Health Research Institute (PHRI), Hamilton, ON, Canada,*Correspondence: Marie Pigeyre
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Riddle MC, Safer JD. Medical considerations in the care of transgender and gender diverse patients with eating disorders. J Eat Disord 2022; 10:178. [PMID: 36414965 PMCID: PMC9682795 DOI: 10.1186/s40337-022-00699-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/09/2022] [Indexed: 11/24/2022] Open
Abstract
Transgender and gender diverse (TGD) individuals are at increased risk for the development of eating disorders, but very little has been published with regards to the unique aspects of their medical care in eating disorder treatment. Providing gender affirming care is a critical component of culturally competent eating disorder treatment. This includes knowledge of gender affirming medical and surgical interventions and how such interventions may be impacted by eating disordered behaviors, as well as the role of such interventions in eating disorder treatment and recovery. TGD individuals face barriers to care, and one of these can be provider knowledge. By better understanding these needs, clinicians can actively reduce barriers and ensure TGD individuals are provided with appropriate care. This review synthesizes the available literature regarding the medical care of TGD patients and those of patients with eating disorders and highlights areas for further research.
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Affiliation(s)
- Megan C Riddle
- Eating Recovery Center, 1231 116Th Ave NE, Bellevue, WA, 98004, USA. .,Department of Psychiatry and Behavioral Sciences, University of Washington, 1959 NE Pacific Street, Box 356560, Seattle, WA, 98195-6560, USA.
| | - Joshua D Safer
- Mount Sinai Center for Transgender Medicine and Surgery, 275 7Th Ave 12Th Floor, New York, NY, 10001, USA
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Sudhakar D, Huang Z, Zietkowski M, Powell N, Fisher AR. Feminizing gender‐affirming hormone therapy for the transgender and gender diverse population: An overview of treatment modality, monitoring, and risks. Neurourol Urodyn 2022. [DOI: 10.1002/nau.25097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 11/06/2022] [Indexed: 11/21/2022]
Affiliation(s)
| | - Zhong Huang
- Pritzker School of Medicine University of Chicago Chicago Illinois USA
| | - Maeson Zietkowski
- Pritzker School of Medicine University of Chicago Chicago Illinois USA
| | - Natasha Powell
- Pritzker School of Medicine University of Chicago Chicago Illinois USA
| | - Andrew R. Fisher
- Department of Obstetrics and Gynecology University of Chicago Chicago Illinois USA
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Deischinger C, Slukova D, Just I, Kaufmann U, Harreiter J, van Trotsenburg M, Trattnig S, Krššák M, Kautzky-Willer A, Klepochova R, Kosi-Trebotic L. Effects of gender-affirming hormone therapy on cardiovascular risk factors focusing on glucose metabolism in an Austrian transgender cohort. INTERNATIONAL JOURNAL OF TRANSGENDER HEALTH 2022; 24:499-509. [PMID: 37901063 PMCID: PMC10601523 DOI: 10.1080/26895269.2022.2123425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Objective We aimed to investigate the effect of gender-affirming hormone therapy (GAHT) on cardiovascular disease risk factors focusing on glucose tolerance. Patients and Methods This primarily translational study enrolled 16 transgender persons assigned female at birth (AFAB), 22 assigned male at birth (AMAB), and 33 age- and BMI-matched cisgender controls at the Medical University of Vienna from 2013 to 2020. A 3-Tesla MRI scan to measure intramyocardial, pancreatic, hepatic fat content and subcutaneous-to-visceral adipose tissue ratio (SAT/VAT-ratio), an oral glucose tolerance test (oGTT), bloodwork including brain natriuretic peptide (pro-BNP), sex hormones and two glucose-metabolism related biomarkers (adiponectin, betatrophin) were performed. Results Estrogen intake was associated with higher fasting insulin (p = 0.034) and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) (p = 0.037), however, lower HbA1c levels (p = 0.031) in AMAB than cisgender males. Adiponectin (p = 0.001) and betatrophin (p = 0.034) levels were higher in AMAB than cisgender males, but similar to cisgender females. Compared to cisgender females, AFAB displayed no differences in glucose metabolism or SAT/VAT-ratio. AFAB had lower pro-BNP levels (p = 0.014), higher liver enzymes (AST: p = 0.011; ALT: p = 0.012) and lower HDL levels (p = 0.017) than cisgender females, but comparable levels to cisgender males. AMAB showed an increased heart rate (p < 0.001) and pro-BNP (p = 0.002) levels, but a more favorable SAT/VAT-ratio (p = 0.013) and lower creatine kinase (CK) (p = 0.001) than cisgender males. There were no relevant differences in organ fat content between transgender persons and their respective cisgender controls. Conclusion In AMAB, most investigated parameters adapted to levels seen in cisgender females except for parameters related to fasted insulin resistance. AMAB should be monitored with respect to the development of insulin resistance.
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Affiliation(s)
- Carola Deischinger
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, General Hospital Vienna, Vienna, Austria
| | - Dorota Slukova
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, General Hospital Vienna, Vienna, Austria
| | - Ivica Just
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, General Hospital Vienna, Vienna, Austria
- High field MR Centre of Excellence, Department of Biomedical Imaging and Image guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Ulrike Kaufmann
- Department of Obstetrics and Gynaecology, Clinical Division of Gynaecologic Endocrinology and Reproductive Medicine, General Hospital Vienna, Vienna, Austria
| | - Juergen Harreiter
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, General Hospital Vienna, Vienna, Austria
| | - Mick van Trotsenburg
- Department of Obstetrics and Gynecology, University of st Pölten Lilienfeld, Vienna, Austria
| | - Siegfried Trattnig
- High field MR Centre of Excellence, Department of Biomedical Imaging and Image guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Martin Krššák
- High field MR Centre of Excellence, Department of Biomedical Imaging and Image guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Alexandra Kautzky-Willer
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, General Hospital Vienna, Vienna, Austria
| | - Radka Klepochova
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, General Hospital Vienna, Vienna, Austria
- High field MR Centre of Excellence, Department of Biomedical Imaging and Image guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Lana Kosi-Trebotic
- Department of Internal Medicine III, Clinical Division of Endocrinology and Metabolism, Gender Medicine Unit, Medical University of Vienna, General Hospital Vienna, Vienna, Austria
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Gusmão-Silva JV, Lichtenecker DCK, Ferreira LGA, Gois Í, Argeri R, Gomes GN, Dias-da-Silva MR. Body, metabolic and renal changes following cross-sex estrogen/progestogen therapy in a rodent model simulating its use by transwomen. J Endocrinol Invest 2022; 45:1875-1885. [PMID: 35689728 DOI: 10.1007/s40618-022-01817-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/02/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE The use of sex steroids by trans people has been of paramount importance regarding body changes during gender transition. The objective of this study was to assess the effects of an injectable steroid combination frequently used by transwomen, namely estradiol enanthate with dihydroxyprogesterone acetophenide (E2EN/DHPA), on blood pressure and metabolic outcomes using an animal model. METHODS Two-month-old male Wistar rats were orchiectomized or sham-operated and divided into groups: (1) Sham treated with sesame oil vehicle (SG), (2) sham treated with E2EN/DHPA (SP), (3) orchiectomized rats treated with vehicle (OG), and (4) orchiectomized rats treated with E2EN/DHPA (OP), with all groups treated every 10 days for 5 months. We evaluated systolic blood pressure (SBP), body weight (BW), abdominal circumference, nasoanal length (NAL), food and water intake (FI, WI), lipid profile (triglycerides, LDL, and HDL), serum C-reactive protein (CRP), plasma concentrations of urea (URpl) and creatinine (CRpl), 24 h urinary volume (V24 h), sodium and potassium excretion (UNa+, UK+), and proteinuria. RESULTS E2EN/DHPA administration reduced BW (SP 324.5 ± 31.1; OP 291.7 ± 41.3 g) and NAL (SP 24.5 ± 0.4; OP 24.6 ± 1.0 cm), without changing blood pressure, but increased URpl concentration (SP 55.0 ± 4.8; OP 42.5 ± 8.8 mg/dL) and CRpl (SP 0.47 ± 0.05; OP 0.46 ± 0.04 mg/dL), sodium (SP 3.1 ± 0.8; OP 3.3 ± 0.4 µEq/min/kg), potassium (SP 0.91 ± 0.22; OP 0.94 ± 0.22 µEq/min/kg) excretions and urinary volume (SP 15.5 ± 2.1; OP 16.4 ± 2.9 mL/24 h). CONCLUSION Cross-sex hormone therapy with E2EN/DHPA significantly modified body characteristics in male rats, producing a feminizing change without altering blood pressure or generating harmful metabolic parameters, but larger translational studies are still needed.
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Affiliation(s)
- J V Gusmão-Silva
- Laboratory of Renal Physiology, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/Unifesp), Rua Botucatu nº 862, Sao Paulo, 04023-900, Brazil
| | - D C K Lichtenecker
- Laboratory of Renal Physiology, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/Unifesp), Rua Botucatu nº 862, Sao Paulo, 04023-900, Brazil
| | - L G A Ferreira
- Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/Unifesp), Rua Pedro de Toledo, nº 699, Sao Paulo, 04039-032, Brazil
| | - Í Gois
- Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/Unifesp), Rua Pedro de Toledo, nº 699, Sao Paulo, 04039-032, Brazil
- Trans Care Outpatient Clinics; Núcleo de Estudos, Pesquisa, Extensão e Assitência à Pessoa Trans Professor Roberto Farina, Universidade Federal de Sao Paulo (Núcleo TransUnifesp), Rua Napoleão de Barros nº 859, Sao Paulo, 04024-002, Brazil
| | - R Argeri
- Laboratory of Renal Physiology, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/Unifesp), Rua Botucatu nº 862, Sao Paulo, 04023-900, Brazil
| | - G N Gomes
- Laboratory of Renal Physiology, Department of Physiology, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/Unifesp), Rua Botucatu nº 862, Sao Paulo, 04023-900, Brazil.
| | - M R Dias-da-Silva
- Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de Sao Paulo (EPM/Unifesp), Rua Pedro de Toledo, nº 699, Sao Paulo, 04039-032, Brazil
- Trans Care Outpatient Clinics; Núcleo de Estudos, Pesquisa, Extensão e Assitência à Pessoa Trans Professor Roberto Farina, Universidade Federal de Sao Paulo (Núcleo TransUnifesp), Rua Napoleão de Barros nº 859, Sao Paulo, 04024-002, Brazil
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Coleman E, Radix AE, Bouman WP, Brown GR, de Vries ALC, Deutsch MB, Ettner R, Fraser L, Goodman M, Green J, Hancock AB, Johnson TW, Karasic DH, Knudson GA, Leibowitz SF, Meyer-Bahlburg HFL, Monstrey SJ, Motmans J, Nahata L, Nieder TO, Reisner SL, Richards C, Schechter LS, Tangpricha V, Tishelman AC, Van Trotsenburg MAA, Winter S, Ducheny K, Adams NJ, Adrián TM, Allen LR, Azul D, Bagga H, Başar K, Bathory DS, Belinky JJ, Berg DR, Berli JU, Bluebond-Langner RO, Bouman MB, Bowers ML, Brassard PJ, Byrne J, Capitán L, Cargill CJ, Carswell JM, Chang SC, Chelvakumar G, Corneil T, Dalke KB, De Cuypere G, de Vries E, Den Heijer M, Devor AH, Dhejne C, D'Marco A, Edmiston EK, Edwards-Leeper L, Ehrbar R, Ehrensaft D, Eisfeld J, Elaut E, Erickson-Schroth L, Feldman JL, Fisher AD, Garcia MM, Gijs L, Green SE, Hall BP, Hardy TLD, Irwig MS, Jacobs LA, Janssen AC, Johnson K, Klink DT, Kreukels BPC, Kuper LE, Kvach EJ, Malouf MA, Massey R, Mazur T, McLachlan C, Morrison SD, Mosser SW, Neira PM, Nygren U, Oates JM, Obedin-Maliver J, Pagkalos G, Patton J, Phanuphak N, Rachlin K, Reed T, Rider GN, Ristori J, Robbins-Cherry S, Roberts SA, Rodriguez-Wallberg KA, Rosenthal SM, Sabir K, Safer JD, Scheim AI, Seal LJ, Sehoole TJ, Spencer K, St Amand C, Steensma TD, Strang JF, Taylor GB, Tilleman K, T'Sjoen GG, Vala LN, Van Mello NM, Veale JF, Vencill JA, Vincent B, Wesp LM, West MA, Arcelus J. Standards of Care for the Health of Transgender and Gender Diverse People, Version 8. INTERNATIONAL JOURNAL OF TRANSGENDER HEALTH 2022; 23:S1-S259. [PMID: 36238954 PMCID: PMC9553112 DOI: 10.1080/26895269.2022.2100644] [Citation(s) in RCA: 609] [Impact Index Per Article: 304.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Background: Transgender healthcare is a rapidly evolving interdisciplinary field. In the last decade, there has been an unprecedented increase in the number and visibility of transgender and gender diverse (TGD) people seeking support and gender-affirming medical treatment in parallel with a significant rise in the scientific literature in this area. The World Professional Association for Transgender Health (WPATH) is an international, multidisciplinary, professional association whose mission is to promote evidence-based care, education, research, public policy, and respect in transgender health. One of the main functions of WPATH is to promote the highest standards of health care for TGD people through the Standards of Care (SOC). The SOC was initially developed in 1979 and the last version (SOC-7) was published in 2012. In view of the increasing scientific evidence, WPATH commissioned a new version of the Standards of Care, the SOC-8. Aim: The overall goal of SOC-8 is to provide health care professionals (HCPs) with clinical guidance to assist TGD people in accessing safe and effective pathways to achieving lasting personal comfort with their gendered selves with the aim of optimizing their overall physical health, psychological well-being, and self-fulfillment. Methods: The SOC-8 is based on the best available science and expert professional consensus in transgender health. International professionals and stakeholders were selected to serve on the SOC-8 committee. Recommendation statements were developed based on data derived from independent systematic literature reviews, where available, background reviews and expert opinions. Grading of recommendations was based on the available evidence supporting interventions, a discussion of risks and harms, as well as the feasibility and acceptability within different contexts and country settings. Results: A total of 18 chapters were developed as part of the SOC-8. They contain recommendations for health care professionals who provide care and treatment for TGD people. Each of the recommendations is followed by explanatory text with relevant references. General areas related to transgender health are covered in the chapters Terminology, Global Applicability, Population Estimates, and Education. The chapters developed for the diverse population of TGD people include Assessment of Adults, Adolescents, Children, Nonbinary, Eunuchs, and Intersex Individuals, and people living in Institutional Environments. Finally, the chapters related to gender-affirming treatment are Hormone Therapy, Surgery and Postoperative Care, Voice and Communication, Primary Care, Reproductive Health, Sexual Health, and Mental Health. Conclusions: The SOC-8 guidelines are intended to be flexible to meet the diverse health care needs of TGD people globally. While adaptable, they offer standards for promoting optimal health care and guidance for the treatment of people experiencing gender incongruence. As in all previous versions of the SOC, the criteria set forth in this document for gender-affirming medical interventions are clinical guidelines; individual health care professionals and programs may modify these in consultation with the TGD person.
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Affiliation(s)
- E Coleman
- Institute for Sexual and Gender Health, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, MN, USA
| | - A E Radix
- Callen-Lorde Community Health Center, New York, NY, USA
- Department of Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | - W P Bouman
- Nottingham Centre for Transgender Health, Nottingham, UK
- School of Medicine, University of Nottingham, Nottingham, UK
| | - G R Brown
- James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA
- James H. Quillen VAMC, Johnson City, TN, USA
| | - A L C de Vries
- Department of Child and Adolescent Psychiatry, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - M B Deutsch
- Department of Family & Community Medicine, University of California-San Francisco, San Francisco, CA, USA
- UCSF Gender Affirming Health Program, San Francisco, CA, USA
| | - R Ettner
- New Health Foundation Worldwide, Evanston, IL, USA
- Weiss Memorial Hospital, Chicago, IL, USA
| | - L Fraser
- Independent Practice, San Francisco, CA, USA
| | - M Goodman
- Emory University Rollins School of Public Health, Atlanta, GA, USA
| | - J Green
- Independent Scholar, Vancouver, WA, USA
| | - A B Hancock
- The George Washington University, Washington, DC, USA
| | - T W Johnson
- Department of Anthropology, California State University, Chico, CA, USA
| | - D H Karasic
- University of California San Francisco, San Francisco, CA, USA
- Independent Practice at dankarasic.com
| | - G A Knudson
- University of British Columbia, Vancouver, Canada
- Vancouver Coastal Health, Vancouver, Canada
| | - S F Leibowitz
- Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - H F L Meyer-Bahlburg
- New York State Psychiatric Institute, New York, NY, USA
- Department of Psychiatry, Columbia University, New York, NY, USA
| | | | - J Motmans
- Transgender Infopunt, Ghent University Hospital, Gent, Belgium
- Centre for Research on Culture and Gender, Ghent University, Gent, Belgium
| | - L Nahata
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, USA
- Endocrinology and Center for Biobehavioral Health, The Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - T O Nieder
- University Medical Center Hamburg-Eppendorf, Interdisciplinary Transgender Health Care Center Hamburg, Institute for Sex Research, Sexual Medicine and Forensic Psychiatry, Hamburg, Germany
| | - S L Reisner
- Harvard Medical School, Boston, MA, USA
- Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - C Richards
- Regents University London, UK
- Tavistock and Portman NHS Foundation Trust, London, UK
| | | | - V Tangpricha
- Division of Endocrinology, Metabolism & Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
- Atlanta VA Medical Center, Decatur, GA, USA
| | - A C Tishelman
- Boston College, Department of Psychology and Neuroscience, Chestnut Hill, MA, USA
| | - M A A Van Trotsenburg
- Bureau GenderPRO, Vienna, Austria
- University Hospital Lilienfeld-St. Pölten, St. Pölten, Austria
| | - S Winter
- School of Population Health, Curtin University, Perth, WA, Australia
| | - K Ducheny
- Howard Brown Health, Chicago, IL, USA
| | - N J Adams
- University of Toronto, Ontario Institute for Studies in Education, Toronto, Canada
- Transgender Professional Association for Transgender Health (TPATH)
| | - T M Adrián
- Asamblea Nacional de Venezuela, Caracas, Venezuela
- Diverlex Diversidad e Igualdad a Través de la Ley, Caracas, Venezuela
| | - L R Allen
- University of Nevada, Las Vegas, NV, USA
| | - D Azul
- La Trobe Rural Health School, La Trobe University, Bendigo, Australia
| | - H Bagga
- Monash Health Gender Clinic, Melbourne, Victoria, Australia
- Monash University, Melbourne, Victoria, Australia
| | - K Başar
- Department of Psychiatry, Hacettepe University, Ankara, Turkey
| | - D S Bathory
- Independent Practice at Bathory International PLLC, Winston-Salem, NC, USA
| | - J J Belinky
- Durand Hospital, Guemes Clinic and Urological Center, Buenos Aires, Argentina
| | - D R Berg
- National Center for Gender Spectrum Health, Institute for Sexual and Gender Health, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, MN, USA
| | - J U Berli
- Oregon Health & Science University, Portland, OR, USA
| | - R O Bluebond-Langner
- NYU Langone Health, New York, NY, USA
- Hansjörg Wyss Department of Plastic Surgery, New York, NY, USA
| | - M-B Bouman
- Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Plastic Surgery, Amsterdam UMC Location Vrije Universiteit Amsterdam, , Amsterdam, Netherlands
| | - M L Bowers
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Mills-Peninsula Medical Center, Burlingame, CA, USA
| | - P J Brassard
- GrS Montreal, Complexe CMC, Montreal, Quebec, Canada
- Université de Montreal, Quebec, Canada
| | - J Byrne
- University of Waikato/Te Whare Wānanga o Waikato, Hamilton/Kirikiriroa, New Zealand/Aotearoa
| | - L Capitán
- The Facialteam Group, Marbella International Hospital, Marbella, Spain
| | | | - J M Carswell
- Harvard Medical School, Boston, MA, USA
- Boston's Children's Hospital, Boston, MA, USA
| | - S C Chang
- Independent Practice, Oakland, CA, USA
| | - G Chelvakumar
- Nationwide Children's Hospital, Columbus, OH, USA
- The Ohio State University, College of Medicine, Columbus, OH, USA
| | - T Corneil
- School of Population & Public Health, University of British Columbia, Vancouver, BC, Canada
| | - K B Dalke
- Penn State Health, PA, USA
- Penn State College of Medicine, Hershey, PA, USA
| | - G De Cuypere
- Center for Sexology and Gender, Ghent University Hospital, Gent, Belgium
| | - E de Vries
- Nelson Mandela University, Gqeberha, South Africa
- University of Cape Town, Cape Town, South Africa
| | - M Den Heijer
- Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Endocrinology, Amsterdam UMC Location Vrije Universiteit Amsterdam, , Amsterdam, Netherlands
| | - A H Devor
- University of Victoria, Victoria, BC, Canada
| | - C Dhejne
- ANOVA, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - A D'Marco
- UCTRANS-United Caribbean Trans Network, Nassau, The Bahamas
- D M A R C O Organization, Nassau, The Bahamas
| | - E K Edmiston
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - L Edwards-Leeper
- Pacific University, Hillsboro, OR, USA
- Independent Practice, Beaverton, OR, USA
| | - R Ehrbar
- Whitman Walker Health, Washington, DC, USA
- Independent Practice, Maryland, USA
| | - D Ehrensaft
- University of California San Francisco, San Francisco, CA, USA
| | - J Eisfeld
- Transvisie, Utrecht, The Netherlands
| | - E Elaut
- Center for Sexology and Gender, Ghent University Hospital, Gent, Belgium
- Department of Clinical Experimental and Health Psychology, Ghent University, Gent, Belgium
| | - L Erickson-Schroth
- The Jed Foundation, New York, NY, USA
- Hetrick-Martin Institute, New York, NY, USA
| | - J L Feldman
- Institute for Sexual and Gender Health, Institute for Sexual and Gender Health, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, MN, USA
| | - A D Fisher
- Andrology, Women Endocrinology and Gender Incongruence, Careggi University Hospital, Florence, Italy
| | - M M Garcia
- Department of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Departments of Urology and Anatomy, University of California San Francisco, San Francisco, CA, USA
| | - L Gijs
- Institute of Family and Sexuality Studies, Department of Neurosciences, KU Leuven, Leuven, Belgium
| | | | - B P Hall
- Duke University Medical Center, Durham, NC, USA
- Duke Adult Gender Medicine Clinic, Durham, NC, USA
| | - T L D Hardy
- Alberta Health Services, Edmonton, Alberta, Canada
- MacEwan University, Edmonton, Alberta, Canada
| | - M S Irwig
- Harvard Medical School, Boston, MA, USA
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | - A C Janssen
- Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
- Northwestern Feinberg School of Medicine, Chicago, IL, USA
| | - K Johnson
- RMIT University, Melbourne, Australia
- University of Brighton, Brighton, UK
| | - D T Klink
- Department of Pediatrics, Division of Pediatric Endocrinology, Ghent University Hospital, Gent, Belgium
- Division of Pediatric Endocrinology and Diabetes, ZNA Queen Paola Children's Hospital, Antwerp, Belgium
| | - B P C Kreukels
- Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Medical Psychology, Amsterdam UMC Location Vrije Universiteit Amsterdam, , Amsterdam, Netherlands
| | - L E Kuper
- Department of Psychiatry, Southwestern Medical Center, University of Texas, Dallas, TX, USA
- Department of Endocrinology, Children's Health, Dallas, TX, USA
| | - E J Kvach
- Denver Health, Denver, CO, USA
- University of Colorado School of Medicine, Aurora, CO, USA
| | - M A Malouf
- Malouf Counseling and Consulting, Baltimore, MD, USA
| | - R Massey
- WPATH Global Education Institute
- Department of Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - T Mazur
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
- John R. Oishei Children's Hospital, Buffalo, NY, USA
| | - C McLachlan
- Professional Association for Transgender Health, South Africa
- Gender DynamiX, Cape Town, South Africa
| | - S D Morrison
- Division of Plastic Surgery, Seattle Children's Hospital, Seattle, WA, USA
- Division of Plastic Surgery, Department of Surgery, University of Washington Medical Center, Seattle, WA, USA
| | - S W Mosser
- Gender Confirmation Center, San Francisco, CA, USA
- Saint Francis Memorial Hospital, San Francisco, CA, USA
| | - P M Neira
- Johns Hopkins Center for Transgender Health, Baltimore, MD, USA
- Johns Hopkins Medicine Office of Diversity, Inclusion and Health Equity, Baltimore, MD, USA
| | - U Nygren
- Division of Speech and Language Pathology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Speech and Language Pathology, Medical Unit, Karolinska University Hospital, Stockholm, Sweden
| | - J M Oates
- La Trobe University, Melbourne, Australia
- Melbourne Voice Analysis Centre, East Melbourne, Australia
| | - J Obedin-Maliver
- Stanford University School of Medicine, Department of Obstetrics and Gynecology, Palo Alto, CA, USA
- Department of Epidemiology and Population Health, Stanford, CA, USA
| | - G Pagkalos
- Independent PracticeThessaloniki, Greece
- Military Community Mental Health Center, 424 General Military Training Hospital, Thessaloniki, Greece
| | - J Patton
- Talkspace, New York, NY, USA
- CytiPsychological LLC, San Diego, CA, USA
| | - N Phanuphak
- Institute of HIV Research and Innovation, Bangkok, Thailand
| | - K Rachlin
- Independent Practice, New York, NY, USA
| | - T Reed
- Gender Identity Research and Education Society, Leatherhead, UK
| | - G N Rider
- National Center for Gender Spectrum Health, Institute for Sexual and Gender Health, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, MN, USA
| | - J Ristori
- Andrology, Women Endocrinology and Gender Incongruence, Careggi University Hospital, Florence, Italy
| | | | - S A Roberts
- Harvard Medical School, Boston, MA, USA
- Division of Endocrinology, Boston's Children's Hospital, Boston, MA, USA
| | - K A Rodriguez-Wallberg
- Department of Reproductive Medicine, Karolinska University Hospital, Stockholm, Sweden
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - S M Rosenthal
- Division of Pediatric Endocrinology, UCSF, San Francisco, CA, USA
- UCSF Child and Adolescent Gender Center
| | - K Sabir
- FtM Phoenix Group, Krasnodar Krai, Russia
| | - J D Safer
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Mount Sinai Center for Transgender Medicine and Surgery, New York, NY, USA
| | - A I Scheim
- Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
- Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, Ontario, Canada
| | - L J Seal
- Tavistock and Portman NHS Foundation Trust, London, UK
- St George's University Hospitals NHS Foundation Trust, London, UK
| | | | - K Spencer
- National Center for Gender Spectrum Health, Institute for Sexual and Gender Health, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, MN, USA
| | - C St Amand
- University of Houston, Houston, TX, USA
- Mayo Clinic, Rochester, MN, USA
| | - T D Steensma
- Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Medical Psychology, Amsterdam UMC Location Vrije Universiteit Amsterdam, , Amsterdam, Netherlands
| | - J F Strang
- Children's National Hospital, Washington, DC, USA
- George Washington University School of Medicine, Washington, DC, USA
| | - G B Taylor
- Atrium Health Department of Obstetrics and Gynecology, Division of Female Pelvic Medicine and Reconstructive Surgery, Charlotte, NC, USA
| | - K Tilleman
- Department for Reproductive Medicine, Ghent University Hospital, Gent, Belgium
| | - G G T'Sjoen
- Center for Sexology and Gender, Ghent University Hospital, Gent, Belgium
- Department of Endocrinology, Ghent University Hospital, Gent, Belgium
| | - L N Vala
- Independent Practice, Campbell, CA, USA
| | - N M Van Mello
- Center of Expertise on Gender Dysphoria, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Obstetrics and Gynaecology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - J F Veale
- School of Psychology, University of Waikato/Te Whare Wānanga o Waikato, Hamilton/Kirikiriroa, New Zealand/Aotearoa
| | - J A Vencill
- Department of Psychiatry & Psychology, Mayo Clinic, Rochester, MN, USA
- Division of General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - B Vincent
- Trans Learning Partnership at https://spectra-london.org.uk/trans-learning-partnership, UK
| | - L M Wesp
- College of Nursing, University of Wisconsin MilwaukeeMilwaukee, WI, USA
- Health Connections Inc., Glendale, WI, USA
| | - M A West
- North Memorial Health Hospital, Robbinsdale, MN, USA
- University of Minnesota, Minneapolis, MN, USA
| | - J Arcelus
- School of Medicine, University of Nottingham, Nottingham, UK
- Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
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Krupka E, Curtis S, Ferguson T, Whitlock R, Askin N, Millar AC, Dahl M, Fung R, Ahmed SB, Tangri N, Walsh M, Collister D. The Effect of Gender-Affirming Hormone Therapy on Measures of Kidney Function: A Systematic Review and Meta-Analysis. Clin J Am Soc Nephrol 2022; 17:1305-1315. [PMID: 35973728 PMCID: PMC9625103 DOI: 10.2215/cjn.01890222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 06/27/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND AND OBJECTIVES Gender-affirming hormone therapy modifies body composition and lean muscle mass in transgender persons. We sought to characterize the change in serum creatinine, other kidney function biomarkers, and GFR in transgender persons initiating masculinizing and feminizing gender-affirming hormone therapy. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We searched PubMed, EMBASE, the Cochrane Library, and ClinicalTrials.gov from inception to September 16, 2020 for randomized controlled trials, observational studies, and case series that evaluated the change in serum creatinine, other kidney function biomarkers, and GFR before and after the initiation of gender-affirming hormone therapy in adult transgender persons. Two reviewers independently screened and abstracted data, and disagreements were resolved by a third reviewer. A random effects meta-analysis was performed to determine the change in outcomes over follow-up of 3, 6, and 12 months. RESULTS Of the 4758 eligible studies, 26 met the inclusion criteria, including nine studies that recruited 488 transgender men and 593 women in which data were meta-analyzed. There was heterogeneity in study design, populations, gender-affirming hormone therapy routes, and dosing. At 12 months after initiating gender-affirming hormone therapy, serum creatinine increased by 0.15 mg/dl (95% confidence interval, 0.00 to 0.29) in 370 transgender men and decreased by -0.05 mg/dl (95% confidence interval, -0.16 to 0.05) in 361 transgender women. No study reported the effect of gender-affirming hormone therapy on albuminuria, proteinuria, cystatin C, or measured GFR. CONCLUSIONS Gender-affirming hormone therapy increases serum creatinine in transgender men and does not affect serum creatinine in transgender women. The effect on gender-affirming hormone therapy on other kidney function biomarkers and measured GFR is unknown. CLINICAL TRIAL REGISTRY NAME AND REGISTRATION NUMBER Change in Kidney Function Biomarkers in Transgender Persons on Gender Affirmation Hormone Therapy-A Systematic Review and Meta-Analysis, CRD42020214248.
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Affiliation(s)
- Emily Krupka
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Sarah Curtis
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Thomas Ferguson
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Reid Whitlock
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
| | - Nicole Askin
- University of Manitoba, Winnipeg, Manitoba, Canada
| | - Adam C. Millar
- Department of Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Marshall Dahl
- Division of Endocrinology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Raymond Fung
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, Michael Garron Hospital, Toronto, Ontario, Canada
| | - Sofia B. Ahmed
- Division of Nephrology, Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Navdeep Tangri
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
- Max Rady Department of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Michael Walsh
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
- Population Health Research Institute, Hamilton Health Sciences/McMaster University, Hamilton, Ontario, Canada
| | - David Collister
- Chronic Disease Innovation Centre, Seven Oaks General Hospital, Winnipeg, Manitoba, Canada
- Max Rady Department of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
- Population Health Research Institute, Hamilton Health Sciences/McMaster University, Hamilton, Ontario, Canada
- Section of Nephrology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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Karalexi MA, Frisell T, Cnattingius S, Holmberg D, Holmberg M, Kollia N, Skalkidou A, Papadopoulos FC. Cardiovascular outcomes in transgender individuals in Sweden after initiation of gender-affirming hormone therapy. Eur J Prev Cardiol 2022; 29:2017-2026. [PMID: 35778824 DOI: 10.1093/eurjpc/zwac133] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/22/2022] [Accepted: 06/28/2022] [Indexed: 11/12/2022]
Abstract
AIMS We compared the incidence of cardiovascular disease (CVD) in transgender participants with a diagnosis of gender dysphoria (GD) with and without gender-affirming hormone therapy (GAHT) to the incidence observed in the general population. METHODS AND RESULTS The population-based cohort included all individuals >10 years in Sweden linked to Swedish nationwide healthcare Registers (2006-2016). Two comparator groups without GD/GAHT were matched (1:10) on age, county of residence, and on male and female birth-assigned sex, respectively. Cox proportional models provided hazard ratios (HR) and 95% confidence intervals (CI) for CVD outcomes. Among 1779 transgender individuals (48% birth-assigned males [AMAB], 52% birth-assigned females [AFAB]) 18 developed CVD, most of which were conduction disorders. The incidence of CVD for AFAB individuals with GD was 3.7 per 1000 person-years (95%CI: 1.4-10.0). AMAB individuals with GD had an incidence of CVD event of 7.1 per 1000 person-years (95%CI: 4.2-12.0). The risk of CVD event was 2.4 times higher in AMAB individuals (HR: 2.4, 95%CI: 1.3-4.2) compared to cisgender women, and 1.7 higher compared to cisgender men (HR: 1.7, 95%CI: 1.0-2.9). Analysis limited to transgender individuals without GAHT yielded similar results to those with GAHT treatment. CONCLUSION The incidence of CVD among GD/GAHT individuals was low, although increased compared to matched individuals without GD and similar to the incidence among GD/no GAHT individuals, thus not lending support for a causal relationship between treatment and CVD outcomes. Larger studies with longer follow-up are needed to verify these findings, as well as possible effect modification by comorbidity.
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Affiliation(s)
- Maria A Karalexi
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Thomas Frisell
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Sven Cnattingius
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Dag Holmberg
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Mats Holmberg
- ANOVA, Andrology, Sexual Medicine and Transgender Medicine, Karolinska University Hospital, Stockholm, Sweden.,Department of Medicine, Huddinge, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Natasa Kollia
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Greece
| | - Alkistis Skalkidou
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
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Jones PR, Voisin S, Nolan BJ, Landen S, Jacques M, Newell B, Zwickl S, Cook T, Wong A, Ginger A, Palmer A, Garnham A, Alvarez-Romero J, Mohandas N, Seale K, Cheung A, Eynon N. Uncovering the effects of gender affirming hormone therapy on skeletal muscle and epigenetics: protocol for a prospective matched cohort study in transgender individuals (the GAME study). BMJ Open 2022; 12:e060869. [PMID: 35545400 PMCID: PMC9096568 DOI: 10.1136/bmjopen-2022-060869] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION Gender affirming hormone therapy (GAHT) is increasingly used by transgender individuals and leads to shifts in sex hormone levels. Skeletal muscle is highly responsive to hormone activity, with limited data on the effects of GAHT on different human tissues. Here, we present the protocol for the GAME study (the effects of Gender Affirming hormone therapy on skeletal Muscle training and Epigenetics), which aims to uncover the effects of GAHT on skeletal muscle 'omic' profiles (methylomics, transcriptomics, proteomics, metabolomics) and markers of skeletal muscle health and fitness. METHODS AND ANALYSIS This study is a prospective age-matched cohort study in transgender adults commencing GAHT (n=80) and age-matched individuals not commencing GAHT (n=80), conducted at Austin Health and Victoria University in Victoria, Australia. Assessments will take place prior to beginning GAHT and 6 and 12 months into therapies in adults commencing GAHT. Age-matched individuals will be assessed at the same time points. Assessments will be divided over three examination days, involving (1) aerobic fitness tests, (2) muscle strength assessments and (3) collection of blood and muscle samples, as well as body composition measurements. Standardised diets, fitness watches and questionnaires will be used to control for key confounders in analyses. Primary outcomes are changes in aerobic fitness and muscle strength, as well as changes in skeletal muscle DNA methylation and gene expression profiles. Secondary outcomes include changes in skeletal muscle characteristics, proteomics, body composition and blood markers. Linear mixed models will be used to assess changes in outcomes, while accounting for repeated measures within participants and adjusting for known confounders. ETHICS AND DISSEMINATION The Austin Health Human Research Ethics Committee (HREC) and Victoria University HREC granted approval for this study (HREC/77146/Austin-2021). Findings from this project will be published in open-access, peer-reviewed journals and presented to scientific and public audiences. TRIAL REGISTRATION NUMBER ACTRN12621001415897; Pre-results.
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Affiliation(s)
- Patrice R Jones
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | - Sarah Voisin
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | - Brendan J Nolan
- Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia
- Department of Endocrinology (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia
| | - Shanie Landen
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | - Macsue Jacques
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | - Beau Newell
- Pride in Sport, ACON Health, Surry Hills, New South Wales, Australia
| | - Sav Zwickl
- Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia
| | - Teddy Cook
- Pride in Sport, ACON Health, Surry Hills, New South Wales, Australia
| | - Alex Wong
- Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia
| | - Ariel Ginger
- Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia
| | - Andrew Palmer
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | - Andrew Garnham
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | | | - Namitha Mohandas
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | - Kirsten Seale
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
| | - Ada Cheung
- Trans Health Research Group, Department of Medicine (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia
- Department of Endocrinology (Austin Health), The University of Melbourne, Heidelberg, Victoria, Australia
| | - Nir Eynon
- Institute for Health and Sport, Victoria University, Footscray, Victoria, Australia
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Coyle CS, Prescott M, Handelsman DJ, Walters KA, Campbell RE. Chronic androgen excess in female mice does not impact luteinizing hormone pulse frequency or putative GABAergic inputs to GnRH neurons. J Neuroendocrinol 2022; 34:e13110. [PMID: 35267218 PMCID: PMC9286661 DOI: 10.1111/jne.13110] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 11/28/2022]
Abstract
Polycystic ovary syndrome (PCOS) is associated with androgen excess and, frequently, hyperactive pulsatile luteinizing hormone (LH) secretion. Although the origins of PCOS are unclear, evidence from pre-clinical models implicates androgen signalling in the brain in the development of PCOS pathophysiology. Chronic exposure of female mice to dihydrotestosterone (DHT) from 3 weeks of age drives both reproductive and metabolic impairments that are ameliorated by selective androgen receptor (AR) loss from the brain. This suggests centrally driven mechanisms in hyperandrogen-mediated PCOS-like pathophysiology that remain to be defined. Acute prenatal DHT exposure can also model the hyperandrogenism of PCOS, and this is accompanied by increased LH pulse frequency and increased GABAergic innervation of gonadotrophin-releasing hormone (GnRH) neurons. We aimed to determine the impact of chronic exposure of female mice to DHT, which models the hyperandrogenism of PCOS, on pulsatile LH secretion and putative GABAergic input to GnRH neurons. To do this, GnRH-green fluorescent protein (GFP) female mice received either DHT or blank capsules for 90 days from postnatal day 21 (n = 6 or 7 per group). Serial tail-tip blood sampling was used to measure LH dynamics and perfusion-fixed brains were collected and immunolabelled for vesicular GABA transporter (VGAT) to assess putative GABAergic terminals associated with GFP-labelled GnRH neurons. As expected, chronic DHT resulted in acyclicity and significantly increased body weight. However, no differences in LH pulse frequency or the density of VGAT appositions to GnRH neurons were identified between ovary-intact DHT-treated females and controls. Chronic DHT exposure significantly increased the number of AR expressing cells in the hypothalamus, whereas oestrogen receptor α-expressing neuron number was unchanged. Therefore, although chronic DHT exposure from 3 weeks of age increases AR expressing neurons in the brain, the GnRH neuronal network changes and hyperactive LH secretion associated with prenatal androgen excess are not evident. These findings suggest that unique central mechanisms are involved in the reproductive impairments driven by exposure to androgen excess at different developmental stages.
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Affiliation(s)
- Chris S. Coyle
- Centre for Neuroendocrinology and Department of PhysiologySchool of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
| | - Melanie Prescott
- Centre for Neuroendocrinology and Department of PhysiologySchool of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
| | - David J Handelsman
- Andrology LaboratoryANZAC Research InstituteConcord HospitalUniversity of SydneySydneyNSWAustralia
| | - Kirsty A. Walters
- Fertility and Research CentreSchool of Women’s and Children’s HealthUniversity of New South WalesSydneyNSWAustralia
| | - Rebecca E. Campbell
- Centre for Neuroendocrinology and Department of PhysiologySchool of Biomedical SciencesUniversity of OtagoDunedinNew Zealand
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Silva MSB, Campbell RE. Polycystic Ovary Syndrome and the Neuroendocrine Consequences of Androgen Excess. Compr Physiol 2022; 12:3347-3369. [PMID: 35578968 DOI: 10.1002/cphy.c210025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a major endocrine disorder strongly associated with androgen excess and frequently leading to female infertility. Although classically considered an ovarian disease, altered neuroendocrine control of gonadotropin-releasing hormone (GnRH) neurons in the brain and abnormal gonadotropin secretion may underpin PCOS presentation. Defective regulation of GnRH pulse generation in PCOS promotes high luteinizing hormone (LH) pulsatile secretion, which in turn overstimulates ovarian androgen production. Early and emerging evidence from preclinical models suggests that maternal androgen excess programs abnormalities in developing neuroendocrine circuits that are associated with PCOS pathology, and that these abnormalities are sustained by postpubertal elevation of endogenous androgen levels. This article will discuss experimental evidence, from the clinic and in preclinical animal models, that has significantly contributed to our understanding of how androgen excess influences the assembly and maintenance of neuroendocrine impairments in the female brain. Abnormal central gamma-aminobutyric acid (GABA) signaling has been identified in both patients and preclinical models as a possible link between androgen excess and elevated GnRH/LH secretion. Enhanced GABAergic innervation and drive to GnRH neurons is suspected to contribute to the pathogenesis and early manifestation of neuroendocrine derangement in PCOS. Accordingly, this article also provides an overview of GABA regulation of GnRH neuron function from prenatal development to adulthood to discuss possible avenues for future discovery research and therapeutic interventions. © 2022 American Physiological Society. Compr Physiol 12:3347-3369, 2022.
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Affiliation(s)
- Mauro S B Silva
- Department of Medicine, Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Rebecca E Campbell
- Centre for Neuroendocrinology, Department of Physiology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
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Islam N, Nash R, Zhang Q, Panagiotakopoulos L, Daley T, Bhasin S, Getahun D, Sonya Haw J, McCracken C, Silverberg MJ, Tangpricha V, Vupputuri S, Goodman M. Is There a Link Between Hormone Use and Diabetes Incidence in Transgender People? Data From the STRONG Cohort. J Clin Endocrinol Metab 2022; 107:e1549-e1557. [PMID: 34850912 PMCID: PMC8947226 DOI: 10.1210/clinem/dgab832] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Risk of type 2 diabetes mellitus (T2DM) in transgender and gender diverse (TGD) persons, especially those receiving gender-affirming hormone therapy (GAHT) is an area of clinical and research importance. METHODS We used data from an electronic health record-based cohort study of persons 18 years and older enrolled in 3 integrated health care systems. The cohort included 2869 transfeminine members matched to 28 300 cisgender women and 28 258 cisgender men on age, race/ethnicity, calendar year, and site, and 2133 transmasculine members similarly matched to 20 997 cisgender women and 20 964 cisgender men. Cohort ascertainment spanned 9 years from 2006 through 2014 and follow-up extended through 2016. Data on T2DM incidence and prevalence were analyzed using Cox proportional hazards and logistic regression models, respectively. All analyses controlled for body mass index. RESULTS Both prevalent and incident T2DM was more common in the transfeminine cohort relative to cisgender female referents with odds ratio and hazard ratio (95% CI) estimates of 1.3 (1.1-1.5) and 1.4 (1.1-1.8), respectively. No significant differences in prevalence or incidence of T2DM were observed across the remaining comparison groups, both overall and in TGD persons with evidence of GAHT receipt. CONCLUSION Although transfeminine people may be at higher risk for T2DM compared with cisgender females, the corresponding difference relative to cisgender males is not discernable. Moreover, there is little evidence that T2DM occurrence in either transfeminine or transmasculine persons is attributable to GAHT use.
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Affiliation(s)
- Noreen Islam
- Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Rebecca Nash
- Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - Qi Zhang
- Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | | | - Tanicia Daley
- Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Shalender Bhasin
- Brigham and Women’s Hospital, Boston, MA 02115, USA
- Harvard School of Medicine, Boston, MA 02115, USA
| | - Darios Getahun
- Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, CA 91101, USA
- Department of Health Systems Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, CA 91101, USA
| | - J Sonya Haw
- Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Courtney McCracken
- Center for Research and Evaluation, Kaiser PermanenteGeorgia, Atlanta, GA 30309, USA
| | - Michael J Silverberg
- Division of Research, Kaiser Permanente, Northern California, Oakland, CA 94612, USA
| | - Vin Tangpricha
- Emory University School of Medicine, Atlanta, GA 30322, USA
- The Atlanta VA Medical Center, Atlanta, GA 30033, USA
| | - Suma Vupputuri
- Mid-Atlantic Permanente Research Institute, Kaiser Permanente Mid-Atlanta States, Rockville, MD 20852, USA
| | - Michael Goodman
- Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
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42
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The effects of gender-affirming hormone therapy on cardiovascular and skeletal health: A literature review. Metabol Open 2022; 13:100173. [PMID: 35282421 PMCID: PMC8907681 DOI: 10.1016/j.metop.2022.100173] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 01/09/2023] Open
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Collister D, Krakowsky Y, Potter E, Millar AC. Chronic Kidney Disease in the Transgender, Nonbinary, or Gender Diverse Person. Semin Nephrol 2022; 42:129-141. [PMID: 35718361 DOI: 10.1016/j.semnephrol.2022.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nephrologists are increasingly providing care to transgender, nonbinary, and gender diverse (TNBGD) individuals with chronic kidney disease. This narrative review discusses the care of TNBGD individuals from a nephrology perspective. TNBGD individuals are under-represented in the nephrology literature. TNBGD individuals are at an increased risk of adverse outcomes compared with the cisgender population including mental health, cardiovascular disease, malignancy, sexually transmitted infections, and mortality. Gender-affirming hormone therapy (GAHT) with estradiol in transfeminine individuals potentially increases the risk of venous thromboembolism and cardiovascular disease. GAHT with testosterone in transmasculine individuals potentially increases the risk of erythrocytosis and requires careful monitoring. GAHT modifies body composition and lean muscle mass, which in turn influence creatinine generation and excretion, which may impact the performance of estimated glomerular filtration rate (GFR) equations and the estimation of 24-hour urine values from spot urine albumin/protein to creatinine ratios. There are limited studies regarding TNBGD individuals with chronic kidney disease. Additional research is needed to evaluate the effects of GAHT on GFR and biomarkers of kidney function and the performance of the estimated GFR equation in TNBGD populations.
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Affiliation(s)
- David Collister
- Division of Nephrology, University of Alberta, Edmonton, Alberta, Canada; Population Health Research Institute, Hamilton, Ontario, Canada.
| | - Yonah Krakowsky
- Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada; Division of Urology, Department of Surgery, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Surgery, Women's College Hospital, Toronto, Ontario, Canada
| | - Emery Potter
- Department of Surgery, Women's College Hospital, Toronto, Ontario, Canada; Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
| | - Adam C Millar
- Division of Endocrinology and Metabolism, Department of Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada; Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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Andrade SRDL, Mucida YM, Xavier JDC, Fernandes LN, Silva RDO, Bandeira F. Bone mineral density, trabecular bone score and muscle strength in transgender men receiving testosterone therapy versus cisgender men. Steroids 2022; 178:108951. [PMID: 34953881 DOI: 10.1016/j.steroids.2021.108951] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 12/02/2021] [Accepted: 12/19/2021] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Data on body composition, bone mineral density (BMD) and microarchitecture between cis and trans men are scarce. Few studies have reported trabecular bone score (TBS) data for transgender men using testosterone. EXPERIMENTAL We studied 19 transgender men and 19 cisgender men (mean age 23.6 ± 3.4 years, p = 0.539) paired by age and body mass index (BMI). They underwent clinical and hormonal evaluation, body composition measurement, and evaluation BMD, the TBS, grip strength, the level of physical activity (IPAQ) and physical performance (SPPB). RESULTS Median serum testosterone levels were similar between the cisgender and transgender groups (638 vs. 685 ng/dl; p = 0.863). Mean serum estradiol levels were slightly higher in the transgender men (51.95 ± 44.26 vs. 32.26 ± 8.40 pg/ml, p = 0.005), and the median testosterone use duration in the transgender group was 24 months. Total muscle mass (44.09 ± 6.27 vs. 55.71 ± 7.28 kg, p < 0.001), and hand grip strength (28.82 ± 5.42 vs. 40.34 ± 8.03 kg, p < 0.001) were considerably lower in the transgender men. Total body BMD (1.208 ± 0.132 vs. 1.271 ± 0.081 g/cm2, p = 0.008) and femoral neck BMD (1.019 ± 0.163 vs. 1.137 ± 0.166 g/cm2, p = 0.016) were lower in the transgender group. The TBS was similar between groups. Thus, our data demonstrated that despite similar serum testosterone levels, transgender men undergoing testosterone therapy had lower muscle strength, muscle mass, and total body and femoral neck BMD values than cisgender men.
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Affiliation(s)
- Sérgio R de L Andrade
- Division of Endocrinology and Diabetes, Agamenon Magalhães Hospital, University of Pernambuco, Faculty of Medical Sciences, Estrada do Arraial, 2723, Casa Amarela, Recife, PE 52070-230, Brazil.
| | - Yasmim M Mucida
- Division of Endocrinology and Diabetes, Agamenon Magalhães Hospital, University of Pernambuco, Faculty of Medical Sciences, Estrada do Arraial, 2723, Casa Amarela, Recife, PE 52070-230, Brazil
| | - Jônatas da C Xavier
- University of Pernambuco, Faculty of Medical Sciences, Rua Arnóbio Marques, 310, Santo Amaro, Recife, PE 50100-130, Brazil
| | - Larissa N Fernandes
- University of Pernambuco, Faculty of Medical Sciences, Rua Arnóbio Marques, 310, Santo Amaro, Recife, PE 50100-130, Brazil; Pernambuco Health College, Avenida Mal. Mascarenhas de Morais, 4861, Imbiribeira, Recife, PE 51150-000, Brazil
| | - Rodrigo de O Silva
- Lessa de Andrade Polyclinic, Municipal Health Secretariat, Estrada dos Remédios, 2416, Madalena, Recife, PE 50770-120, Brazil
| | - Francisco Bandeira
- Division of Endocrinology and Diabetes, Agamenon Magalhães Hospital, University of Pernambuco, Faculty of Medical Sciences, Estrada do Arraial, 2723, Casa Amarela, Recife, PE 52070-230, Brazil
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45
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Singh P, Covassin N, Marlatt K, Gadde KM, Heymsfield SB. Obesity, Body Composition, and Sex Hormones: Implications for Cardiovascular Risk. Compr Physiol 2021; 12:2949-2993. [PMID: 34964120 PMCID: PMC10068688 DOI: 10.1002/cphy.c210014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Cardiovascular disease (CVD) continues to be the leading cause of death in adults, highlighting the need to develop novel strategies to mitigate cardiovascular risk. The advancing obesity epidemic is now threatening the gains in CVD risk reduction brought about by contemporary pharmaceutical and surgical interventions. There are sex differences in the development and outcomes of CVD; premenopausal women have significantly lower CVD risk than men of the same age, but women lose this advantage as they transition to menopause, an observation suggesting potential role of sex hormones in determining CVD risk. Clear differences in obesity and regional fat distribution among men and women also exist. While men have relatively high fat in the abdominal area, women tend to distribute a larger proportion of their fat in the lower body. Considering that regional body fat distribution is an important CVD risk factor, differences in how men and women store their body fat may partly contribute to sex-based alterations in CVD risk as well. This article presents findings related to the role of obesity and sex hormones in determining CVD risk. Evidence for the role of sex hormones in determining body composition in men and women is also presented. Lastly, the clinical potential for using sex hormones to alter body composition and reduce CVD risk is outlined. © 2022 American Physiological Society. Compr Physiol 12:1-45, 2022.
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Affiliation(s)
- Prachi Singh
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | | | - Kara Marlatt
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | - Kishore M Gadde
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | - Steven B Heymsfield
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
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Yuasa T, Takata Y, Aki N, Kunimi K, Satoh M, Nii M, Izumi Y, Otoda T, Hashida S, Osawa H, Aihara KI. Insulin receptor cleavage induced by estrogen impairs insulin signaling. BMJ Open Diabetes Res Care 2021; 9:9/2/e002467. [PMID: 34969688 PMCID: PMC8719150 DOI: 10.1136/bmjdrc-2021-002467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 12/06/2021] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Soluble insulin receptor (sIR), which is the ectodomain of insulin receptor (IR), is present in human plasma. Plasma sIR levels are positively correlated with blood glucose levels and negatively correlated with insulin sensitivity. An in vitro model of IR cleavage shows that extracellular calpain 2 directly cleaves IR, which generates sIR, and sequential cleavage of the IRβ subunit by γ-secretase impairs insulin signaling in a glucose concentration-dependent manner. Nevertheless, sIR levels vary among subjects with normal glucose levels. RESEARCH DESIGN AND METHODS We examined sIR levels of pregnant women throughout gestation. Using an in vitro model, we also investigated the molecular mechanisms of IR cleavage induced by estradiol. RESULTS In pregnant women, sIR levels were positively correlated with estrogen levels and significantly increased at late pregnancy independent of glucose levels. Using an in vitro model, estrogen elicited IR cleavage and impaired cellular insulin signaling. Estradiol-induced IR cleavage was inhibited by targeting of calpain 2 and γ-secretase. Estrogen exerted these biological effects via G protein-coupled estrogen receptor, and its selective ligand upregulated calpain 2 expression and promoted exosome secretion, which significantly increased extracellular calpain 2. Simultaneous stimulation of estrogen and high glucose levels had a synergic effect on IR cleavage. Metformin prevented calpain 2 release in exosomes and restored insulin signaling impaired by estrogen. CONCLUSIONS Estradiol-induced IR cleavage causes cellular insulin resistance, and its molecular mechanisms are shared with those by high glucose levels. sIR levels at late pregnancy are significantly elevated along with estrogen levels. Therefore, estradiol-induced IR cleavage is preserved in pregnant women and could be part of the etiology of insulin resistance in gestational diabetes mellitus and overt diabetes during pregnancy.
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Affiliation(s)
- Tomoyuki Yuasa
- Community Medicine and Medical Science, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yasunori Takata
- Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Nanako Aki
- Internal Medicine, Anan Kyoei Hospital, Anan, Japan
| | - Kotaro Kunimi
- Obstetrics and Gynecology, Anan Kyoei Hospital, Anan, Japan
| | - Miki Satoh
- Obstetrics and Gynecology, Anan Kyoei Hospital, Anan, Japan
| | - Mari Nii
- Obstetrics and Gynecology, Anan Kyoei Hospital, Anan, Japan
| | | | - Toshiki Otoda
- Community Medicine and Medical Science, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Seiichi Hashida
- Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Haruhiko Osawa
- Diabetes and Molecular Genetics, Ehime University Graduate School of Medicine, Toon, Japan
| | - Ken-Ichi Aihara
- Community Medicine and Medical Science, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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47
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Mahowald MK, Maheshwari AK, Lara-Breitinger KM, Adel FW, Pellikka PA, Davidge-Pitts CJ, Nippoldt TB, Kantor B, Mankad R. Characteristics of Transgender Women Referred to Women's Heart Clinic. Am J Prev Cardiol 2021; 7:100223. [PMID: 34611649 PMCID: PMC8387274 DOI: 10.1016/j.ajpc.2021.100223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/10/2021] [Accepted: 07/07/2021] [Indexed: 12/21/2022] Open
Abstract
Introduction Transgender women have been reported to have a high burden of cardiovascular disease (CVD) and risk factors based largely on surveys. Our aim was to describe the prevalence of CVD and associated comorbidities among a cohort of older transgender women referred to cardiology as part of their gender-affirming care. Methods This was a retrospective, cross-sectional study of transgender women at a single institution from 2017 to 2019. Results Fifty-two consecutive patients were included. The most common reasons for referral were cardiac risk factor management (45%) and pre-operative cardiac risk stratification prior to gender-affirming surgery (35%). The mean age was 57 ± 10 years, 87% were white, and 92% had insurance coverage. Forty-eight patients (92%) were taking gender-affirming hormone therapy; 5 had undergone breast augmentation, 4 had undergone orchiectomy, and 2 had undergone vaginoplasty. The most common comorbidities were depression and/or anxiety (63%), obesity (58%), and hyperlipidemia (54%). Excluding aldosterone antagonists, 46% were on cardiac medications; changes were recommended for 25% of patients: new prescriptions in 9, dose adjustments in 5, and discontinuations in 4. According to the pooled cohort equation, the 10-year risk of atherosclerotic CVD was 9.4 ± 7.7% when the study population was calculated as male and 5.2 ± 5.1% when calculated as female (p <0.001). For patients who completed exercise testing, the functional aerobic capacity was fair (77.6 ± 21.4%) when calculated as male and average (99.5 ± 27.5%) as female (p < .0001); there was inconsistency in sex used for calculating the result on the formal report. Conclusions Older transgender women may have an underestimated prevalence of CVD and its risk factors. More research is needed to identify cardiovascular health profiles, improve practice consistency, and establish normative values for transgender patients.
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Affiliation(s)
| | - Arvind K Maheshwari
- Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, Mayo Clinic, Rochester, MN
| | | | - Fadi W Adel
- Department of Internal Medicine, Mayo Clinic, Rochester, MN
| | | | - Caroline J Davidge-Pitts
- Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, Mayo Clinic, Rochester, MN
| | - Todd B Nippoldt
- Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, Mayo Clinic, Rochester, MN
| | - Birgit Kantor
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
| | - Rekha Mankad
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN
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Morán-Costoya A, Proenza AM, Gianotti M, Lladó I, Valle A. Sex Differences in Nonalcoholic Fatty Liver Disease: Estrogen Influence on the Liver-Adipose Tissue Crosstalk. Antioxid Redox Signal 2021; 35:753-774. [PMID: 33736456 DOI: 10.1089/ars.2021.0044] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Significance: Nonalcoholic fatty liver disease (NAFLD) is a hepatic and systemic disorder with a complex multifactorial pathogenesis. Owing to the rising incidence of obesity and diabetes mellitus, the prevalence of NAFLD and its impact on global health care are expected to increase in the future. Differences in NAFLD exist between males and females, and among females depending on their reproductive status. Clinical and preclinical data show that females in the fertile age are more protected against NAFLD, and studies in postmenopausal women and ovariectomized animal models support a protective role for estrogens. Recent Advances: An efficient crosstalk between the liver and adipose tissue is necessary to regulate lipid and glucose metabolism, protecting the liver from steatosis and insulin resistance contributing to NALFD. New advances in the knowledge of sexual dimorphism in liver and adipose tissue are providing interesting clues about the sex differences in NAFLD pathogenesis that could inspire new therapeutic strategies. Critical Issues: Sex hormones influence key master regulators of lipid metabolism and oxidative stress in liver and adipose tissue. All these sex-biased metabolic adjustments shape the crosstalk between liver and adipose tissue, contributing to the higher protection of females to NAFLD. Future Directions: The development of novel drugs based on the protective action of estrogens, but without its feminizing or undesired side effects, might provide new therapeutic strategies for the management of NAFLD. Antioxid. Redox Signal. 35, 753-774.
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Affiliation(s)
- Andrea Morán-Costoya
- Energy Metabolism and Nutrition Group, Department of Fundamental Biology and Health Sciences, Research Institute of Health Sciences (IUNICS), University of the Balearic Islands, Palma, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Ana M Proenza
- Energy Metabolism and Nutrition Group, Department of Fundamental Biology and Health Sciences, Research Institute of Health Sciences (IUNICS), University of the Balearic Islands, Palma, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain.,Center for Biomedical Research in the Pathophysiology of Obesity and Nutrition Network, Carlos III Health Institute, Madrid, Spain
| | - Magdalena Gianotti
- Energy Metabolism and Nutrition Group, Department of Fundamental Biology and Health Sciences, Research Institute of Health Sciences (IUNICS), University of the Balearic Islands, Palma, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain.,Center for Biomedical Research in the Pathophysiology of Obesity and Nutrition Network, Carlos III Health Institute, Madrid, Spain
| | - Isabel Lladó
- Energy Metabolism and Nutrition Group, Department of Fundamental Biology and Health Sciences, Research Institute of Health Sciences (IUNICS), University of the Balearic Islands, Palma, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain.,Center for Biomedical Research in the Pathophysiology of Obesity and Nutrition Network, Carlos III Health Institute, Madrid, Spain
| | - Adamo Valle
- Energy Metabolism and Nutrition Group, Department of Fundamental Biology and Health Sciences, Research Institute of Health Sciences (IUNICS), University of the Balearic Islands, Palma, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain.,Center for Biomedical Research in the Pathophysiology of Obesity and Nutrition Network, Carlos III Health Institute, Madrid, Spain
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49
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Maheshwari A, Dines V, Saul D, Nippoldt T, Kattah A, Davidge-Pitts C. The Effect of Gender-Affirming Hormone Therapy on Serum Creatinine in Transgender Individuals. Endocr Pract 2021; 28:52-57. [PMID: 34474185 DOI: 10.1016/j.eprac.2021.08.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 01/17/2023]
Abstract
OBJECTIVE To describe the changes in serum creatinine (Cr) levels after the initiation of gender-affirming hormone therapy (GAHT) in transgender individuals to better understand the expected changes and interpretation of laboratory values in this population. METHODS A retrospective chart review of all adult transgender patients initiated on GAHT at Mayo Clinic from January 2011 to October 2019 was completed. Laboratory values were obtained prior to initiating GAHT and at 3, 6, and 12 months after initiating GAHT. Baseline Cr values were compared with Cr values at 3, 6, and 12 months after initiating GAHT in transgender men (TM) on testosterone and transgender women (TW) on estradiol and antiandrogens. RESULTS A total of 84 TW (median age of 30 years) and 24 TM (median age of 23 years) were included for analysis. Following a matched pair analysis of TW, Cr values were found to be significantly decreased by -0.03 at 3 months (P = .04), -0.10 at 6 months (P < .01), and -0.07 at 12 months (P < .01) compared with baseline values. Following a matched pair analysis of TM, Cr values were found to be significantly increased, on average, by 0.14 at 3 months (P = .04), 0.21 at 6 months (P = .016), and 0.15 at 12 months (P = .003) compared with baseline values. CONCLUSION In TW and TM, a change in Cr level was seen as early as 3 months toward their affirmed gender after initiating GAHT. Clinicians can use Cr levels established at 6 months as new baseline values, as these changes continue to persist up to 12 months.
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Affiliation(s)
- Arvind Maheshwari
- Division of Endocrinology, Diabetes, Nutrition, Mayo Clinic, Rochester, Minnesota.
| | - Virginia Dines
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Dominik Saul
- Kogod Center for Aging, Mayo Clinic, Rochester, Minnesota
| | - Todd Nippoldt
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Andrea Kattah
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
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50
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Nolan BJ, Cheung AS. Relationship Between Serum Estradiol Concentrations and Clinical Outcomes in Transgender Individuals Undergoing Feminizing Hormone Therapy: A Narrative Review. Transgend Health 2021; 6:125-131. [PMID: 34414268 DOI: 10.1089/trgh.2020.0077] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Transgender, including gender diverse and nonbinary, individuals are treated with estradiol with or without antiandrogen to align their physical appearance with their gender identity, improve mental health and quality of life. Consensus guidelines give target ranges for serum estradiol concentration based on premenopausal female reference ranges. However, limited studies have evaluated the relationship between serum estradiol concentrations and clinical outcomes in transgender individuals undergoing feminizing hormone therapy. The available evidence has not found that higher serum estradiol concentrations, together with suppressed testosterone, enhance breast development, or produce more feminine changes to body composition. However, ensuring testosterone suppression appears to be an important factor to maximize these physical changes. Higher serum estradiol concentrations have been associated with higher areal bone mineral density. Although the resultant long-term clinical implications are yet to be determined, this could be a consideration for individuals with low bone mass. The precise serum estradiol concentration that results in adequate feminization without increasing the risk of complications (thromboembolic disease, cholelithiasis) remains unknown. Further prospective trials are required.
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Affiliation(s)
- Brendan J Nolan
- 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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