Research Explorer

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Researcher

Justine Defreyne

Awards & Distinctions

38 Results

2024

Approach to the patient : hormonal therapy in transgender adults with complex medical histories

Sean J IwamotoMicol S RothmanGuy T'SjoenJustine Defreyne

A1 Journal Article in JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

2023

Gender-affirming hormonal therapy for transgender and gender-diverse people : a narrative review

Justine DefreyneClara Vander SticheleSean J. IwamotoGuy T'Sjoen

A1 Journal Article in BEST PRACTICE & RESEARCH CLINICAL OBSTETRICS & GYNAECOLOGY

2022

Change in visceral fat and total body fat and the effect on cardiometabolic risk factors during transgender hormone therapy

Maartje KlaverDaan van VelzenChristel de BlokNienke NotaChantal WiepjesJustine DefreyneThomas SchreinerAlessandra FisherJos TwiskJaap Seidell et al.

A1 Journal Article in JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

2021

Characterisation of testicular function and spermatogenesis in transgender women

Gertjan VereeckeJustine DefreyneDorien Van SaenSarah ColletJo Van DorpeGuy T'SjoenEllen Goossens

A1 Journal Article in HUMAN REPRODUCTION

Is there a need for liver enzyme monitoring in people using gender-affirming hormone therapy?

Theresa A. StanglChantal M. WiepjesJustine DefreyneElfi ConemansAlessandra D. FisherThomas SchreinerGuy T'SjoenMartin den Heijer

A1 Journal Article in EUROPEAN JOURNAL OF ENDOCRINOLOGY

Low feasibility of in vitro matured oocytes originating from cumulus complexes found during ovarian tissue preparation at the moment of gender confirmation surgery and during testosterone treatment for fertility preservation in transgender men

Sylvie LiermanAnnelies TolpeIlse De CrooStefanie De GheselleJustine DefreyneMachteld BaetensAnnelies DheedeneRoos ColmanBjörn MentenGuy T'Sjoen et al.

A1 Journal Article in FERTILITY AND STERILITY

Positive and negative affect changes during gender-affirming hormonal treatment : results from the European Network for the Investigation of Gender Incongruence (ENIGI)

Imke MatthysJustine DefreyneEls ElautAlessandra Daphne FisherBaudewijntje P. C. KreukelsAnnemieke StaphorsiusMartin Den HeijerGuy T'Sjoen

A1 Journal Article in JOURNAL OF CLINICAL MEDICINE

Sexual orientation in transgender individuals : results from the longitudinal ENIGI study

Justine DefreyneEls ElautM. Den HeijerB. KreukelsA. D. FisherGuy T'Sjoen

A1 Journal Article in INTERNATIONAL JOURNAL OF IMPOTENCE RESEARCH

2020

Effects of gender-affirming hormone therapy on insulin sensitivity and incretin responses in transgender people

Samiah ShadidKessewa Abosi-AppeaduAnne-Sophie De MaertelaereJustine DefreyneLaurens VeldemanJens J HolstBruno LapauwTina VilsbøllGuy T'Sjoen

A1 Journal Article in DIABETES CARE

Factors other than sex steroid levels contribute to sexual desire in transgender women

Sarah ColletJustine DefreyneMeltem KiyarSarah NobelsDelphine de MeijerGuy T'Sjoen

Gender affirming endocrine care in adults

Justine DefreyneGuy T'SjoenEls Elaut

Lower serum estradiol levels in assigned female at birth transgender people with initiation of testosterone therapy : results from the European Network for the Investigation of Gender Incongruence

Justine DefreyneXavier-Philippe AersSarah ColletChantal M. WiepjesAlessandra D. FisherThomas SchreinerMartin Den HeijerJean KaufmanGuy T'Sjoen

A1 Journal Article in LGBT HEALTH

Organizing the voice questionnaire for transgender persons

Charlotte BultynckCharlotte PasJustine DefreyneMarjan CosynsGuy T'Sjoen

A1 Journal Article in INTERNATIONAL JOURNAL OF TRANSGENDER HEALTH

Parental desire and fertility preservation in assigned female at birth transgender people living in Belgium

Justine DefreyneJudith Van SchuylenberghJoz MotmansKelly TillemanGuy T'Sjoen

A1 Journal Article in FERTILITY AND STERILITY

Parental desire and fertility preservation in assigned male at birth transgender people living in Belgium

Justine DefreyneJudith Van SchuylenberghJoz MotmansKelly TillemanGuy T'Sjoen

A1 Journal Article in INTERNATIONAL JOURNAL OF TRANSGENDER HEALTH

Sexual desire changes in transgender individuals upon initiation of hormone treatment : results from the Investigation of Gender Incongruence

Justine DefreyneEls ElautBaudewijntje KreukelsAlessandra Daphne FisherGiovanni CastelliniAnnemieke StaphorsiusMartin Den HeijerGunter HeylensGuy T'Sjoen

A1 Journal Article in JOURNAL OF SEXUAL MEDICINE

Vaginal bleeding and spotting in transgender men after initiation of testosterone therapy : a prospective cohort study (ENIGI)

Justine DefreyneYuran VanwonterghemSarah ColletSean J. IwamotoChantal M. WiepjesAlessandra D. FisherThomas SchreinerMartin Den HeijerGuy T'Sjoen

A1 Journal Article in INTERNATIONAL JOURNAL OF TRANSGENDER HEALTH

2019

Cardiometabolic effects of testosterone in transmen and estrogen plus cyproterone acetate in transwomen

Daan M. van VelzenAlessia PaldinoMaartje KlaverNienke M. NotaJustine DefreyneG. Kees HovinghAbel ThijsSuat SimsekGuy T'SjoenMartin den Heijer

A1 Journal Article in JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

Effects of gender-affirming hormones on lipid, metabolic, and cardiac surrogate blood markers in transgender persons

Justine DefreyneLaurens Van de BruaeneErnst RietzschelJudith Van SchuylenberghGuy T'Sjoen

A1 Journal Article in CLINICAL CHEMISTRY

Health considerations for transgender women and remaining unknowns : a narrative review

Sean J IwamotoJustine DefreyneMicol S RothmanJudith Van SchuylenberghLaurens Van de BruaeneJoz MotmansGuy T'Sjoen

A1 Journal Article in THERAPEUTIC ADVANCES IN ENDOCRINOLOGY AND METABOLISM

No correlation between serum testosterone levels and state-level anger intensity in transgender people : results from the European Network for the Investigation of Gender Incongruence

Justine DefreyneBaudewijntje KreukelsGuy T'SjoenAnnemieke StaphorsiusMartin Den HeijerGunter HeylensEls Elaut

A1 Journal Article in HORMONES AND BEHAVIOR

Sexual desire in transgender persons in relation with gender affirming hormone treatment : results from ENIGI, a large multicenter prospective cohort study in transgender people

Justine DefreyneBaudewijntje KreukelsGuy T'SjoenMartin Den HeijerGunter HeylensEls Elaut

Sexual health, transition-related risk behavior and need for health care among transgender sex workers

Judith Van SchuylenberghJoz MotmansJustine DefreyneAnna SomersGuy T'Sjoen

A1 Journal Article in INTERNATIONAL JOURNAL OF TRANSGENDERISM

Sexual orientation during transition, fixed or fluid? : a study in the ENIGI-cohort

Brand CoumouJustine DefreyneEls ElautBaudewijntje Kreukels

Transmasculine hormone therapy

Justine DefreyneGuy T'Sjoen

A1 Journal Article in ENDOCRINOLOGY AND METABOLISM CLINICS OF NORTH AMERICA

2018

Effects of sex hormone treatment on the metabolic syndrome in transgender individuals : focus on metabolic cytokines

Matthias K AuerThomas EbertMaik PietznerJustine DefreyneJohannes FussGuenter K StallaGuy T'Sjoen

A1 Journal Article in JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

Prospective evaluation of hematocrit in gender-affirming hormone treatment : results from European Network for the Investigation of Gender Incongruence

Justine DefreyneBram VantommeEva Van CaenegemKatrien WierckxCJM De BlokM KlaverNM NotaD Van DijkCM WiepjesM Den Heijer et al.

A1 Journal Article in ANDROLOGY

Prospective evaluation of self-reported aggression in transgender persons

Justine DefreyneGuy T'SjoenWalter Pierre BoumanNicola BrewinJon Arcelus

A1 Journal Article in JOURNAL OF SEXUAL MEDICINE

Routine histopathological examination after female-to-male gender-confirming mastectomy

Sofie Van RenterghemJo Van DorpeStan MonstreyJustine DefreyneKarel ClaesMarleen PraetSofie VerbekeGuy T'SjoenMieke Van Bockstal

A1 Journal Article in BRITISH JOURNAL OF SURGERY

2017

Concerning the article by Fung et al, titled 'Differential effects of cyproterone acetate vs spironolactone on serum high-density lipoprotein and prolactin concentrations in the hormonal treatment of transgender women'

Justine DefreyneGuy T'Sjoen

Editorial material

Fertility in Trans Persons

Chloë De RooJustine DefreynePetra De SutterKelly TillemanJoz MotmansBoudewijn KreukelsBjörn MentenGuy T'SjoenNora van Mello

Healthcare costs and quality of life outcomes following gender affirming surgery in trans men : a review

Justine DefreyneJoz MotmansGuy T'Sjoen

A1 Journal Article in EXPERT REVIEW OF PHARMACOECONOMICS & OUTCOMES RESEARCH

Histopathology of transgender breast specimens : expect the unexpected!

Sofie Van RenterghemJo Van DorpeGuy T'SjoenStan MonstreySofie VerbekeMieke Van Bockstalthe additional authors on the posterJustine DefreyneKarel ClaesMarleen Praet

Is type 1 diabetes mellitus more prevalent than expected in transgender persons? A local observation

Justine DefreyneDirk De BacquerSamiah ShadidBruno LapauwGuy T'Sjoen

A1 Journal Article in SEXUAL MEDICINE

Self-perception of voice in transgender persons during cross-sex hormone therapy

Charlotte BultynckCharlotte PasJustine DefreyneMarjan CosynsMartin den HeijerGuy T'Sjoen

A1 Journal Article in LARYNGOSCOPE

Transient elevated serum prolactin in trans women is caused by cyproterone acetate treatment

Justine DefreyneNienke NotaCecilia PereiraThomas SchreinerAlessandra D FisherMartin den HeijerGuy T'Sjoen

A1 Journal Article in LGBT HEALTH

Type 1 diabetes mellitus is more prevalent than expected in transgender patients : a local observation

Justine DefreyneDirk De BacquerSamiah ShadidBruno LapauwGuy T'Sjoen

Type 1 diabetes mellitus is more prevalent than expected in transgender patients; a local observation

Justine DefreyneDirk De BacquerSamiah ShadidBruno LapauwGuy T'Sjoen