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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">MD-Onco</journal-id><journal-title-group><journal-title xml:lang="en">MD-Onco</journal-title><trans-title-group xml:lang="ru"><trans-title>MD-Onco</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2782-3202</issn><issn publication-format="electronic">2782-6171</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">206</article-id><article-id pub-id-type="doi">10.17650/2782-3202-2025-5-4-14-24</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>RARE COMPLICATIONS, QUALITY OF LIFE, AND FOLLOW-UP CARE OF ONCOHEMATOLOGICAL PATIENTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>РЕДКИЕ ОСЛОЖНЕНИЯ, КАЧЕСТВО ЖИЗНИ И ДИСПАНСЕРНОЕ НАБЛЮДЕНИЕ ОНКОГЕМАТОЛОГИЧЕСКИХ БОЛЬНЫХ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Dynamics of sex hormone levels in pubertal children with Hodgkin’s lymphoma before and after chemotherapy</article-title><trans-title-group xml:lang="ru"><trans-title>Динамика уровней половых гормонов у детей пубертатного возраста с лимфомой Ходжкина до и после химиотерапии</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7334-3034</contrib-id><name-alternatives><name xml:lang="en"><surname>Dzhavadov</surname><given-names>Daniil A.</given-names></name><name xml:lang="ru"><surname>Джавадов</surname><given-names>Даниил Арифович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3618-6890</contrib-id><name-alternatives><name xml:lang="en"><surname>Frantsiyants</surname><given-names>E. M.</given-names></name><name xml:lang="ru"><surname>Франциянц</surname><given-names>Е. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6681-3253</contrib-id><name-alternatives><name xml:lang="en"><surname>Kozel</surname><given-names>Yu. Yu.</given-names></name><name xml:lang="ru"><surname>Козель</surname><given-names>Ю. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2302-8271</contrib-id><name-alternatives><name xml:lang="en"><surname>Bandovkina</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Бандовкина</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3711-8155</contrib-id><name-alternatives><name xml:lang="en"><surname>Cheryarina</surname><given-names>N. D.</given-names></name><name xml:lang="ru"><surname>Черярина</surname><given-names>Н. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2124-3218</contrib-id><name-alternatives><name xml:lang="en"><surname>Dmitrieva</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Дмитриева</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0676-7398</contrib-id><name-alternatives><name xml:lang="en"><surname>Kozyuk</surname><given-names>O. V.</given-names></name><name xml:lang="ru"><surname>Козюк</surname><given-names>О. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2565-1518</contrib-id><name-alternatives><name xml:lang="en"><surname>Dimitriadi</surname><given-names>S. N.</given-names></name><name xml:lang="ru"><surname>Димитриади</surname><given-names>С. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3635-8579</contrib-id><name-alternatives><name xml:lang="en"><surname>Aslanyan</surname><given-names>K. S.</given-names></name><name xml:lang="ru"><surname>Асланян</surname><given-names>К. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>dda.onco@yandex.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Rostov State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Ростовский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Regional Children’s Clinical Hospital</institution></aff><aff><institution xml:lang="ru">ГБУ РО «Областная детская клиническая больница»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-17" publication-format="electronic"><day>17</day><month>12</month><year>2025</year></pub-date><volume>5</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>14</fpage><lpage>24</lpage><history><date date-type="received" iso-8601-date="2025-12-17"><day>17</day><month>12</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-12-17"><day>17</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Dzhavadov D.A., Frantsiyants E.M., Kozel Y.Y., Bandovkina V.A., Cheryarina N.D., Dmitrieva V.V., Kozyuk O.V., Dimitriadi S.N., Aslanyan K.S.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Джавадов Д.А., Франциянц Е.М., Козель Ю.Ю., Бандовкина В.А., Черярина Н.Д., Дмитриева В.В., Козюк О.В., Димитриади С.Н., Асланян К.С.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Dzhavadov D.A., Frantsiyants E.M., Kozel Y.Y., Bandovkina V.A., Cheryarina N.D., Dmitrieva V.V., Kozyuk O.V., Dimitriadi S.N., Aslanyan K.S.</copyright-holder><copyright-holder xml:lang="ru">Джавадов Д.А., Франциянц Е.М., Козель Ю.Ю., Бандовкина В.А., Черярина Н.Д., Дмитриева В.В., Козюк О.В., Димитриади С.Н., Асланян К.С.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://mdonco.abvpress.ru/jour/article/view/206">https://mdonco.abvpress.ru/jour/article/view/206</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Sex hormones play a crucial role in normal sexual and reproductive development during puberty. Hodgkin’s lymphoma (HL) and its chemotherapy may significantly disrupt hormonal balance, adversely affecting the reproductive system.</p> <p><bold>Aim. </bold>To investigate the levels of sex hormones – estrone (E1), estradiol (E2), estriol (E3), progesterone (P4), total testosterone (T), free testosterone (FT), sex hormone-binding globulin (SHBG), as well as estrogen receptors α (ERα), β (ERβ), and androgen receptor (AR) – in the blood of pubertal children with HL before chemotherapy (CT) and after its completion.</p> <p><bold>Materials and methods. </bold>The study included 40 pubertal children of both sexes with HL (median age 13.65 years, range 11–17). The control group consisted of 40 age- and sex-matched healthy children (median age 15.25 years). Hormone levels were measured in blood samples from the patient group before treatment and 14 days after completing all CT courses. Reference values were derived from the control group. Statistical analysis was performed using Statistica 10 software.</p> <p><bold>Results. </bold>Prior to HL treatment, girls showed a 27.8-fold increase in E3 compared to controls. Levels of E1, P4, T, FT, and AR were decreased by 2.4-, 3.7-, 2.0-, 2.3-, and 3.0-fold, respectively. Post-CT, E1 decreased 3.4- and 8.0-fold relative to pre-treatment and controls, respectively; E3 decreased 3.8-fold but remained elevated 7.3-fold above controls. P4 was reduced 2.0- and 7.5-fold versus pre-treatment and controls. ERα declined 8.3- and 7.5-fold relative to pre-treatment and controls. T and FT remained decreased by 2.0- and 1.9-fold, respectively. AR increased 2.2-fold amid a 1.6-fold decrease in SHBG compared topre-treatment. Boys before treatment exhibited reductions in E1, E2, P4, FT, and AR by 1.9-, 2.7-, 1.7-, 1.4-, and 4.7-fold, respectively, relative to controls. Total testosterone was elevated 1.8-fold in 50 % of patients but decreased 42.0-fold in the remainder. SHBG was increased 2.4-fold. After CT, E2 rose 1.6-fold but remained 1.7-fold below controls. P4 decreased 2.6-fold compared to pre-treatment and was 4.5-fold below controls. T remained 1.7-fold above controls in half of patients and increased 10.2-fold in others but stayed 4.1-fold below controls. FT decreased 1.6-fold and was 2.2-fold below controls. AR increased 3.0-fold but stayed 1.6-fold below controls. SHBG decreased 1.7-fold but exceeded control levels by 1.4-fold.</p> <p><bold>Conclusion. </bold>Despite limitations in gonadal tissue sampling and preservation in pubertal patients with HL before treatment, developing new fertility preservation strategies through a multidisciplinary approach involving pediatric oncologists, reproductive specialists, endocrinologists, and psychologists is critical. Assessing hormonal status before and after antitumor therapy enables identification of at-risk patients and timely correction of hormonal imbalances, improving reproductive outcomes in HL survivors.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Половые гормоны играют ключевую роль в нормальном половом и репродуктивном развитии детей пубертатного возраста. Лимфома Ходжкина (ЛХ) и проводимая химиотерапия (ХТ) могут значительно нарушать гормональный баланс, что отрицательно сказывается на репродуктивной системе.</p> <p><bold>Цель исследования </bold>– изучить уровни половых гормонов: эстрона (estrone, E1), эстрадиола (estradiol, E2), эстриола (estriol, E3), прогестерона (progesterone, P4), общего тестостерона (total testosterone, T), свободного тестостерона (free testosterone, FT), глобулина, связывающего половые гормоны (ГСПГ), а также рецепторов эстрогена α (estrogen receptor α, ERα), β (ERβ) и андрогенов (androgen receptor, AR) в крови детей пубертатного возраста с ЛХ до ХТ и после ее окончания.</p> <p><bold>Материалы и методы. </bold>В исследование включены 40 детей обоих полов пубертатного возраста с впервые установленным диагнозом ЛХ; медиана возраста – 13,65 (11–17) года. Контрольную группу составили 40 условно здоровых детей в равном половом соотношении; медиана возраста – 15,25 (11–17) года. В образцах крови детей основной группы до начала и через 14 дней после завершения всех курсов ХТ определяли уровни E1, E2, E3, P4, T, FT, ERα, ERβ, AR, ГСПГ. В качестве нормы использовали средние уровни гормонов, полученные из образцов крови контрольной группы. Статистическую обработку результатов проводили с помощью программы Statistica 10.</p> <p><bold>Результаты. </bold>До лечения ЛХ у девочек выявлено повышение уровня Е3 в 27,8 раза относительно нормы. Уровни Е1, P4, Т, FТ, и AR были ниже нормы в 2,4; 3,7; 2,0; 2,3 и 3,0 раза соответственно. После ХТ уровень Е1 снизился по сравнению с уровнем до лечения и нормой в 3,4 и 8,0 раза соответственно; Е3 – в 3,8 раза, но все еще превышал норму в 7,3 раза. Уровень P4 был ниже показателей до лечения и нормы в 2,0 и 7,5 раза соответственно. Отмечено снижение уровня ERα в 8,3 раза по сравнению с уровнем до лечения и в 7,5 раза по сравнению с нормой. Уровни Т и FТ оставались снижены относительно нормы в 2,0 и 1,9 раза соответственно. Уровень AR повысился в 2,2 раза на фоне снижения уровня ГСПГ относительно концентрации до лечения в 1,6 раза.</p> <p>У мальчиков до лечения отмечено снижение уровней Е1, Е2, P4, FТ и AR относительно нормы в 1,9; 2,7; 1,7; 1,4 и 4,7 раза соответственно. Уровень Т у 50 % (n = 10) пациентов превышал норму в 1,8 раза, у остальных был ниже в 42,0 раза. Концентрация ГСПГ была повышена в 2,4 раза. После ХТ уровень Е2 повысился в 1,6 раза, но оставался ниже нормы в 1,7 раза. Уровень P4 снизился в 2,6 раза по сравнению с уровнем до лечения и был ниже нормы в 4,5 раза. Уровень Т у половины пациентов оставался выше нормы в 1,7 раза, у остальных увеличился в 10,2 раза, но оставался ниже нормы в 4,1 раза. Уровень FТ снизился в 1,6 раза и был ниже нормы в 2,2 раза. Уровень AR повысился в 3,0 раза, оставаясь ниже нормы в 1,6 раза. Уровень ГСПГ снизился в 1,7 раза, но превышал норму в 1,4 раза.</p> <p><bold>Заключение. </bold>Несмотря на ограничения процедуры забора и консервации гонадной ткани у подростков с ЛХ до начала лечения, важно разрабатывать новые подходы к сохранению фертильности в междисциплинарной команде врача-онколога, репродуктолога, эндокринолога и психолога. Оценка гормонального фона до и после терапии позволяет выявить группу риска и своевременно скорректировать гормональный статус, повышая шансы пациентов реализовать репродуктивный потенциал.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Hodgkin’s lymphoma</kwd><kwd>adolescents</kwd><kwd>hormones</kwd><kwd>androgens</kwd><kwd>estrogens</kwd><kwd>testosterone</kwd><kwd>progesterone</kwd><kwd>estrone</kwd><kwd>estriol</kwd><kwd>estradiol</kwd><kwd>fertility</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>лимфома Ходжкина</kwd><kwd>подростки</kwd><kwd>гормоны</kwd><kwd>андрогены</kwd><kwd>эстрогены</kwd><kwd>тестостерон</kwd><kwd>прогестерон</kwd><kwd>эстрон</kwd><kwd>эстриол</kwd><kwd>эстрадиол</kwd><kwd>фертильность</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Belyaeva E.S., Susuleva N.A., Valiev T.T. The importance of intensive chemotherapy for advanced Hodgkin lymphoma in children. RMZH. Mat i ditya = Russian Journal of Woman and Child Health 2020;3(2):149–53. (In Russ.). DOI: 10.32364/2618-8430-2020-3-2-149-154</mixed-citation><mixed-citation xml:lang="ru">Беляева Е.С., Сусулева Н.А., Валиев Т.Т. Значение интенсивной химиотерапии для лечения детей с распространенными стадиями лимфомы Ходжкина. РМЖ. Мать и дитя 2020;3(2):149–53. DOI: 10.32364/2618-8430-2020-3-2-149-154</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Kulichkina N.S., Belyaeva E.S., Popa A.V. et al. The role of intermediate positron emission tomography combined with computed tomography in the treatment of Hodgkin’s lymphoma in children. Sovremennaya onkologiya = Journal of Modern Oncology 2017;19(3):52–6. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Куличкина Н.С., Беляева Е.С., Попа А.В. и др. Роль промежуточной позитронно-эмиссионной томографии, совмещенной с компьютерной томографией, в тактике лечения лимфомы Ходжкина у детей. Современная онкология 2017;19(3):52–6.</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Valiev T.T., Morozova O.V., Kovrigina A.M. et al. Diagnosis and treatment of anaplastic large-cell lymphomas in children. Gematologiya i transfuziologiya = Russian Journal of Hematology and Transfusiology 2012;57(1):3–9. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Валиев Т.Т., Морозова О.В., Ковригина А.М. и др. Диагностика и лечение анапластических крупноклеточных лимфом у детей. Гематология и трансфузиология 2012;57(1):3–9.</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><citation-alternatives><mixed-citation xml:lang="en">Valiev T.T., Makhonova L.A., Kovrigina A.M. et al. Case of congenital Langerhans cells histiocytosis in an infant. Onkogematologiya = Oncohematology 2011;6(2):19–23. (In Russ.). DOI: 10.17650/1818-8346-2011-6-2-19-22</mixed-citation><mixed-citation xml:lang="ru">Валиев Т.Т., Махонова Л.А., Ковригина А.М. и др. Случай врожденного лангергансоклеточного гистиоцитоза у ребенка раннего возраста. Онкогематология 2011;6(2):19–23. DOI: 10.17650/1818-8346-2011-6-2-19-22</mixed-citation></citation-alternatives></ref><ref id="B5"><label>5.</label><citation-alternatives><mixed-citation xml:lang="en">Valiev T.T., Sholohova L.A., Mayakova S.A. et al. Clinical and morphoimmunological features of non-Hodgkin’s lymphomas in children. Immunologiya gemopoeza = Hematopoiesis Immunology 2009;6(2):8–44. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Валиев Т.Т., Шолохова Е.Н., Маякова С.А. и др. Клинико-морфоиммунологические особенности неходжкинских лимфом у детей. Иммунология гемопоэза 2009;6(2):8–44.</mixed-citation></citation-alternatives></ref><ref id="B6"><label>6.</label><citation-alternatives><mixed-citation xml:lang="en">Valiev T.T., Levashov A.S., Senzhapova E.R. Targeted drugs in pediatric oncology. Onkopediatriya = Oncopediatrics 2016;3(1):8–15. (In Russ.). DOI: 10.15690/onco.v3i1.1524</mixed-citation><mixed-citation xml:lang="ru">Валиев Т.Т., Левашов А.С., Сенжапова Э.Р. Таргетные препараты в детской онкологии. Онкопедиатрия 2016;3(1):8–15. DOI: 10.15690/onco.v3i1.1524</mixed-citation></citation-alternatives></ref><ref id="B7"><label>7.</label><citation-alternatives><mixed-citation xml:lang="en">Zaeva G.E., Valiev T.T., Gavrilenko T.F. et al. Long-term effects of pediatric cancer therapy: 35-year clinical experience. Sovremennaya onkologiya = Journal of Modern Oncology 2016;18(1):55–60. (In Russ.).</mixed-citation><mixed-citation xml:lang="ru">Заева Г.Е., Валиев Т.Т., Гавриленко Т.Ф. и др. Отдаленные последствия терапии злокачественных опухолей у детей: 35-летний опыт клинических наблюдений. Современная онкология 2016;18(1):55–60.</mixed-citation></citation-alternatives></ref><ref id="B8"><label>8.</label><citation-alternatives><mixed-citation xml:lang="en">Baryshnikov A.Yu., Valiev T.T., Gubin A.N. et al. Lymphomas in children. Practical guide. Moscow, 2014.</mixed-citation><mixed-citation xml:lang="ru">Барышников А.Ю., Валиев Т.Т., Губин А.Н. и др. Лимфомы у детей. Практическое руководство. М., 2014.</mixed-citation></citation-alternatives></ref><ref id="B9"><label>9.</label><mixed-citation>Ansell S.M. Hodgkins lymphoma: diagnosis and treatment. Mayo Clin Proc 2015;90(11):1574–83. DOI: 10.1016/j.mayocp.2015.07.005</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Castellino S.M., Pei Q., Parsons S.K. et al. Brentuximab vedotin with chemotherapy in pediatric high-risk Hodgkin’s lymphoma. N Engl J Med 2022;387(18):1649–60. DOI: 10.1056/NEJMoa2206660</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Castellino S.M., Li H., Herrera A.F. et al. Progression-free survival (PFS) and toxicity with nivolumab-AVD compared to brentuximab vedotin-AVD in pediatric advanced stage (AS) classic Hodgkin lymphoma (cHL), results of SWOG S1826. Blood 2023; 142(Suppl 1):610. DOI: 10.1182/blood-2023-180107</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Sonigo C., Beau I., Binart N., Grynberg M. The impact of chemotherapy on the ovaries: molecular aspects and the prevention of ovarian damage. Int J Mol Sci 2019;20(21): 5342. DOI: 10.3390/ijms20215342</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Spears N., Lopes F., Stefansdottir A. et al. Ovarian damage from chemotherapy and current approaches to its protection. Hum Reprod Update 2019;25(6):673–93. DOI: 10.1093/humupd/dmz027</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Mulder R.L., Font-Gonzalez A., Hudson M.M. et al. Fertility preservation for female patients with childhood, adolescent, and young adult cancer: recommendations from the PanCareLIFE consortium and the International Late Effects of Childhood Cancer Guideline Harmonization Group. Lancet Oncol 2021;22(2):e45–56. DOI: 10.1016/S1470-2045(20)30594-5</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Rowell E., Duncan F., Laronda M. ASRM removes the experimental label from Ovarian Tissue Cryopreservation (OTC): pediatric research must continue. Fertil Steril Dialog 2020. DOI: 10.1016/78659c74-03b7-4024-85ad-c628e2542107</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Drechsel K.C.E., Broer S.L., Stoutjesdijk F.S. et al. The impact of treatment for childhood classical Hodgkin lymphoma according to the EuroNet-PHL-C2 protocol on serum anti-Müllerian hormone. Hum Reprod 2024;39(8):1701–11. DOI: 10.1093/humrep/deae112</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Goossens E., Jahnukainen K., Mitchell R.T. et al. Fertility preservation in boys: recent developments and new insights. Hum Reprod Open 2020;2020(3):hoaa016. DOI: 10.1093/hropen/hoaa016</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Brignardello E., Felicetti F., Castiglione A. et al. Gonadal status in long-term male survivors of childhood cancer. J Cancer Res Clin Oncol 2016;142(5):1127–32. DOI: 10.1007/s00432-016-2124-5</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Drechsel K.C.E., Broer S.L., van Breda H.M.K. et al. Semen analysis and reproductive hormones in boys with classical Hodgkin lymphoma treated according to the EuroNet-PHL-C2 protocol. Hum Reprod 2024;39(11):2411–22. DOI: 10.1093/humrep/deae204</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Kaprara A., Huhtaniemi I.T. The hypothalamus-pituitary-gonad axis: tales of mice and men. Metabolism 2018;86:3–17. DOI: 10.1016/j.metabol.2017.11.018</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Loosfelt H., Misrahi M., Atger M. et al. Cloning and sequencing of porcine LH-hCG receptor cDNA: variants lacking transmembrane domain. Science 1989;245(4917):525–8. DOI: 10.1126/science.2502844</mixed-citation></ref><ref id="B22"><label>22.</label><mixed-citation>Papadopoulos V., Miller W.L. Role of mitochondria in steroidogenesis. Best Pract Res Clin Endocrinol Metab 2012;26(6):771–90. DOI: 10.1016/j.beem.2012.05.002</mixed-citation></ref><ref id="B23"><label>23.</label><mixed-citation>Fuentes N., Silveyra P. Estrogen receptor signaling mechanisms. Adv Protein Chem Struct Biol 2019;116:135–70. DOI: 10.1016/bs.apcsb.2019.01.001</mixed-citation></ref><ref id="B24"><label>24.</label><mixed-citation>Hammes S.R., Levin E.R. Impact of estrogens in males and androgens in females. J Clin Invest 2019;129(5):1818–26. DOI: 10.1172/JCI125755</mixed-citation></ref><ref id="B25"><label>25.</label><mixed-citation>Miller K.D., Siegel R.L., Lin C.C. et al. Cancer treatment and survivorship statistics, 2016. CA Cancer J Clin 2016;66(4):271–89. DOI: 10.3322/caac.21349</mixed-citation></ref><ref id="B26"><label>26.</label><mixed-citation>Sklar C.A., Antal Z., Chemaitilly W. et al. Hypothalamic-pituitary and growth disorders in survivors of childhood cancer: an Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab 2018;103(8):2761–84. DOI: 10.1210/jc.2018-01175</mixed-citation></ref><ref id="B27"><label>27.</label><mixed-citation>Duca Y., Di Cataldo A., Russo G. et al. Testicular function of childhood cancer survivors: who is worse? J Clin Med 2019;8(12):2204. DOI: 10.3390/jcm8122204</mixed-citation></ref><ref id="B28"><label>28.</label><mixed-citation>Moravek M.B., Appiah L.C., Anazodo A. et al. Development of a pediatric fertility preservation program: a report from the pediatric initiative network of the oncofertility consortium. J Adolesc Health 2019;64(5):563–73. DOI: 10.1016/j.jadohealth.2018.10.297</mixed-citation></ref><ref id="B29"><label>29.</label><mixed-citation>Garcia-Velasco J.A., Domingo J., Cobo A. et al. Five years’ experience using oocyte vitrification to preserve fertility for medical and nonmedical indications. Fertil Steril 2013;99(7):1994–9. DOI: 10.1016/j.fertnstert.2013.02.004</mixed-citation></ref><ref id="B30"><label>30.</label><mixed-citation>Coyne K., Purdy M., O’Leary K. et al. Challenges and considerations in optimizing ovarian stimulation protocols in oncofertility patients. Front Public Health 2014;2:246. DOI: 10.3389/fpubh.2014.00246</mixed-citation></ref><ref id="B31"><label>31.</label><mixed-citation>Manuel S.L., Moravek M.B., Confino R. et al. Ovarian stimulation is a safe and effective fertility preservation option in the adolescent and young adult population. J Assist Reprod Genet 2020;37(3): 699–708. DOI: 10.1007/s10815-019-01639-y</mixed-citation></ref><ref id="B32"><label>32.</label><mixed-citation>Guzelce E.C., Galbiati F., Goldman A.L. et al. Accurate measurement of total and free testosterone levels for the diagnosis of androgen disorders. Best Pract Res Clin Endocrinol Metab 2022;36(4):101683. DOI: 10.1016/j.beem.2022.101683</mixed-citation></ref><ref id="B33"><label>33.</label><mixed-citation>Ward E.P., Evans D.B., Tsai S. Ten-year experience in optimizing neoadjuvant therapy for localized pancreatic cancer – Medical college of Wisconsin perspective. J Surg Oncol 2021;123(6):1405–13. DOI: 10.1002/jso.26395</mixed-citation></ref><ref id="B34"><label>34.</label><mixed-citation>Wu E., Son S.Y., Gariwala V., O’Neill C. Gastric gastrointestinal stromal tumor (GIST) with co-occurrence of pancreatic neuroendocrine tumor. Radiol Case Rep 2021;16(6):1391–4. DOI: 10.1016/j.radcr.2021.03.014</mixed-citation></ref><ref id="B35"><label>35.</label><mixed-citation>Sciarra F., Campolo F., Franceschini E. et al. Gender-specific impact of sex hormones on the immune system. Int J Mol Sci 2023;24(7):6302. DOI: 10.3390/ijms24076302</mixed-citation></ref></ref-list></back></article>
