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Pallotti F, Senofonte G, Conflitti AC, Giancotti A, Anzuini A, Delli Paoli E, Di Chiano S, Faja F, Gatta V, Mondo A, Mosconi M, Rizzo F, Spiniello L, Lombardo F, Paoli D. Safety of gender affirming treatment in assigned female at birth transgender people and association of androgen and estrogen β receptor polymorphisms with clinical outcomes. Endocrine 2023; 81:621-630. [PMID: 37326767 DOI: 10.1007/s12020-023-03421-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023]
Abstract
PURPOSE Gender affirming hormone treatment (GAHT) with androgens in assigned female at birth (AFAB) people with Gender Incongruence (GI) can induce and maintain variable phenotypical changes, but individual response may be genetically determined. To clarify the role of AR and ERβ polymorphisms we prospectively evaluated AFAB subjects undergoing virilizing GAHT. METHODS Fifty-two AFAB people with confirmed GI were evaluated before (T0) and after 6 (T6) and 12 months (T12) of testosterone enanthate 250 mg i.m. every 28 days. Hormone profile (testosterone, estradiol), biochemical (blood count, glyco-metabolic profile) and clinical parameters (Ferriman-Gallwey score, pelvic organs) were evaluated at each time-point, as well as number of CAG and CA repeats for AR and ERβ, respectively. RESULTS All subjects have successfully achieved testosterone levels within normal male ranges and improved their degree of virilization, in absence of significant side effects. Hemoglobin, hematocrit and red blood cells were significantly increased after treatment, but within normal ranges. Ultrasound monitoring of pelvic organs showed their significant reduction already after 6 months of GATH, in absence of remarkable abnormalities. Furthermore, a lower number of CAG repeats was associated with a higher Ferriman-Gallwey score post treatment and a higher number of CA repeats was associated with uterine volume reduction. CONCLUSION We confirmed safety and efficacy of testosterone treatment on all measured parameters. This preliminary data hints a future role of genetic polymorphisms to tailor GAHT in GI people, but evaluation on a larger cohort is necessary as the reduced sample size could limit data generalization at this stage.
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Affiliation(s)
- Francesco Pallotti
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy.
- Faculty of Medicine and Surgery, University of Enna "Kore", 94100, Enna, Italy.
| | - Giulia Senofonte
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Anna Chiara Conflitti
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Antonella Giancotti
- Prenatal Diagnosis Centre, Department of Obstetrics, Gynaecology and Urologic Science, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Antonella Anzuini
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Enrico Delli Paoli
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Silvia Di Chiano
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Fabiana Faja
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Valentina Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, 66100, Chieti, Italy
| | - Alessandro Mondo
- Prenatal Diagnosis Centre, Department of Obstetrics, Gynaecology and Urologic Science, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Maddalena Mosconi
- Gender Identity Development Service, Hospital S. Camillo-Forlanini, 00152, Rome, Italy
| | - Flavio Rizzo
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, 00161, Rome, Italy
| | - Lorenzo Spiniello
- Prenatal Diagnosis Centre, Department of Obstetrics, Gynaecology and Urologic Science, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Francesco Lombardo
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
| | - Donatella Paoli
- Laboratory of Seminology - Sperm Bank "Loredana Gandini", Department of Experimental Medicine, "Sapienza" University of Rome, 00161, Rome, Italy
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Abstract
In this review, we discuss the effects on androgens on the haemopoietic system, focussing largely on the effects of testosterone on erythropoiesis. Stimulation of erythropoiesis is one of the most consistent effects of testosterone treatment observed in clinical trials. In men with anaemia this effect can be beneficial. Conversely, erythrocytosis is one of the most common adverse effects of testosterone treatment with a relative risk of 8.14 (95% CI: 1.87-35.40) estimated by a recent meta-analysis of randomised placebo controlled clinical trials. A reduction in haemoglobin is commonly seen in men receiving androgen deprivation therapy for prostate cancer, and in transwomen receiving gender affirming therapy to reduce serum testosterone. While mechanisms by which androgens regulate erythropoiesis are not fully understood, it is likely that effects on erythropoietic progenitor cells and erythropoietin are involved, with secondary effects on iron metabolism. In contrast, whether androgens exert clinically relevant effects on white blood cells and on platelets requires further study.
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Affiliation(s)
- Annabelle M Warren
- Department of Endocrinology, Austin Health and University of Melbourne, Australia.
| | - Mathis Grossmann
- Department of Endocrinology, Austin Health and University of Melbourne, Australia.
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Kaufman JM, Lapauw B, Mahmoud A, T'Sjoen G, Huhtaniemi IT. Aging and the Male Reproductive System. Endocr Rev 2019; 40:906-972. [PMID: 30888401 DOI: 10.1210/er.2018-00178] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 12/27/2018] [Indexed: 12/21/2022]
Abstract
This narrative review presents an overview of current knowledge on fertility and reproductive hormone changes in aging men, the factors driving and modulating these changes, their clinical consequences, and the benefits and risks of testosterone (T) therapy. Aging is accompanied by moderate decline of gamete quality and fertility. Population mean levels show a mild total T decline, an SHBG increase, a steeper free T decline, and a moderate LH increase with important contribution of comorbidities (e.g., obesity) to these changes. Sexual symptoms and lower hematocrit are associated with low T and are partly responsive to T therapy. The relationship of serum T with body composition and metabolic health is bidirectional; limited beneficial effects of T therapy on body composition have only marginal effects on metabolic health and physical function. Skeletal changes are associated primarily with estradiol and SHBG. Cognitive decline is not consistently linked to low T and is not improved by T therapy. Although limited evidence links moderate androgen decline with depressive symptoms, T therapy has small beneficial effects on mood, depressive symptoms, and vitality in elderly patients with low T. Suboptimal T (and/or DHT) has been associated with increased risk of stroke, but not of ischemic heart disease, whereas an association with mortality probably reflects that low T is a marker of poor health. Globally, neither severity of clinical consequences attributable to low T nor the nature and magnitude of beneficial treatment effects justify the concept of some broadly applied "T replacement therapy" in older men with low T. Moreover, long-term safety of T therapy is not established.
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Affiliation(s)
- Jean-Marc Kaufman
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Bruno Lapauw
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Ahmed Mahmoud
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Guy T'Sjoen
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - Ilpo Tapani Huhtaniemi
- Department of Surgery and Cancer, Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom.,Department of Physiology, Institute of Biomedicine, University of Turku, Turku, Finland
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4
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Guo W, Schmidt PJ, Fleming MD, Bhasin S. Hepcidin is not essential for mediating testosterone's effects on erythropoiesis. Andrology 2019; 8:82-90. [DOI: 10.1111/andr.12622] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 12/21/2022]
Affiliation(s)
- W. Guo
- Research Program in Men's Health: Aging and Metabolism The Boston Claude D. Pepper Older Americans Independence Center Brigham and Women's Hospital, and Harvard Medical School Boston MA USA
| | - P. J. Schmidt
- Department of Pathology Boston Children's Hospital and Harvard Medical School Boston MA USA
| | - M. D. Fleming
- Department of Pathology Boston Children's Hospital and Harvard Medical School Boston MA USA
| | - S. Bhasin
- Research Program in Men's Health: Aging and Metabolism The Boston Claude D. Pepper Older Americans Independence Center Brigham and Women's Hospital, and Harvard Medical School Boston MA USA
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Gagliano-Jucá T, Pencina KM, Ganz T, Travison TG, Kantoff PW, Nguyen PL, Taplin ME, Kibel AS, Li Z, Huang G, Edwards RR, Nemeth E, Basaria S. Mechanisms responsible for reduced erythropoiesis during androgen deprivation therapy in men with prostate cancer. Am J Physiol Endocrinol Metab 2018; 315:E1185-E1193. [PMID: 30325657 PMCID: PMC6336960 DOI: 10.1152/ajpendo.00272.2018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Androgen deprivation therapy (ADT) is a mainstay of treatment for prostate cancer (PCa). As androgens stimulate erythropoiesis, ADT is associated with a reduction in hematocrit, which in turn contributes to fatigue and related morbidity. However, the mechanisms involved in ADT-induced reduction in erythropoiesis remain unclear. We conducted a 6-mo prospective cohort study and enrolled men with PCa about to undergo ADT (ADT-Group) and a control group of men who had previously undergone prostatectomy for localized PCa and were in remission (Non-ADT Group). All participants had normal testosterone levels at baseline. Fasting blood samples were collected at baseline, 12 wk, and 24 wk after initiation of ADT; samples were obtained at the same intervals from enrollment in the Non-ADT group. Blood count, iron studies, erythropoietin, erythroferrone, and hepcidin levels were measured. Seventy participants formed the analytical sample (31 ADT, 39 Non-ADT). ADT was associated with a significant reduction in erythrocyte count (estimated mean difference = -0.2×106 cells/µl, 95%CI = -0.3 to -0.1×106 cells/µl, P < 0.001), hematocrit (-1.9%, 95%CI = -2.7 to -1.1%, P < 0.001), and hemoglobin (-0.6 g/dl, 95%CI = -0.8 to -0.3 g/dl, P < 0.001). Serum hepcidin concentration increased in the ADT-group (18 ng/ml, P < 0.001); however, iron concentrations did not change (-1.1 µg/dl, P = 0.837). Ferritin levels increased in men on ADT (60 ng/ml, P < 0.001). Iron binding capacity, transferrin saturation, erythroferrone, and erythropoietin did not change. Nine men undergoing ADT developed new-onset anemia. In conclusion, reduced proliferation of marrow erythroid progenitors leads to ADT-induced reduction in erythropoiesis. Future studies should evaluate the role of selective androgen receptor modulators in the treatment of ADT-induced anemia.
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Affiliation(s)
- Thiago Gagliano-Jucá
- Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - Karol M Pencina
- Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - Tomas Ganz
- Department of Medicine and Department of Pathology, David Geffen School of Medicine at University of California , Los Angeles, California
| | | | - Philip W Kantoff
- Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College , New York, New York
| | - Paul L Nguyen
- Department of Radiation Oncology, Dana-Farber Cancer Institute , Boston, Massachusetts
| | - Mary-Ellen Taplin
- Department of Medical Oncology, Dana-Farber Cancer Institute , Boston, Massachusetts
| | - Adam S Kibel
- Division of Urology, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - Zhuoying Li
- Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - Grace Huang
- Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - Robert R Edwards
- Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
| | - Elizabeta Nemeth
- Department of Medicine and Department of Pathology, David Geffen School of Medicine at University of California , Los Angeles, California
| | - Shehzad Basaria
- Research Program in Men's Health: Aging and Metabolism, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts
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Cognette MC, da Silva AV, Machado RD, Faria EF. Reply to letter to editor regarding: LHRH analog therapy is associated with worse metabolic side effects than bilateral orchiectomy in prostate cancer. World J Urol 2018; 36:683-684. [PMID: 29470648 DOI: 10.1007/s00345-018-2226-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 02/03/2018] [Indexed: 11/30/2022] Open
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Castilla-Cortazar I, de Ita JR, Aguirre GA, Castorena-Torres F, Ortiz-Urbina J, García-Magariño M, de la Garza RG, Diaz Olachea C, Elizondo Leal MI. Fanconi Anemia and Laron Syndrome. Am J Med Sci 2017; 353:425-432. [PMID: 28502327 DOI: 10.1016/j.amjms.2017.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 02/02/2017] [Accepted: 02/02/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Fanconi anemia (FA) is a condition characterized by genetic instability and short stature, which is due to growth hormone (GH) deficiency in most cases. However, no apparent relationships have been identified between FA complementation group genes and GH. In this study, we thereby considered an association between FA and Laron syndrome (LS) (insulin-like growth factor 1 [IGF-1] deficiency). METHODS A 21-year-old female Mexican patient with a genetic diagnosis of FA was referred to our research department for an evaluation of her short stature. Upon admission to our facility, her phenotype led to a suspicion of LS; accordingly, serum levels of IGF-1 and IGF binding protein 3 were analyzed and a GH stimulation test was performed. In addition, we used a next-generation sequencing approach for a molecular evaluation of FA disease-causing mutations and genes involved in the GH-IGF signaling pathway. RESULTS Tests revealed low levels of IGF-1 and IGF binding protein 3 that remained within normal ranges, as well as a lack of response to GH stimulation. Sequencing confirmed a defect in the GH receptor signaling pathway. CONCLUSIONS To the best of our knowledge, this study is the first to suggest an association between FA and LS. We propose that IGF-1 administration might improve some FA complications and functions based upon IGF-1 beneficial actions observed in animal, cell and indirect clinical models: erythropoiesis modulation, immune function improvement and metabolic regulation.
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Affiliation(s)
- Inma Castilla-Cortazar
- Escuela de Medicina, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico; Fundación de Investigación HM Hospitales, Madrid, Spain.
| | | | | | | | - Jesús Ortiz-Urbina
- Escuela de Medicina, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico
| | | | | | - Carlos Diaz Olachea
- Escuela de Medicina, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico
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Zhou P, Meng Z, Liu M, Ren X, Zhu M, He Q, Zhang Q, Liu L, Song K, Jia Q, Tan J, Li X, Liu N, Hu T, Upadhyaya A. The associations between leukocyte, erythrocyte or platelet, and metabolic syndrome in different genders of Chinese. Medicine (Baltimore) 2016; 95:e5189. [PMID: 27858856 PMCID: PMC5591104 DOI: 10.1097/md.0000000000005189] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Leukocyte, erythrocyte or platelet and metabolic syndrome (MS) are closely correlated, and there exist gender differences. We aimed to explore the associations between the hematological parameters and MS in different genders of Chinese. This cross-sectional study included 32,900 participants (20,733 males, 12,167 females) who were enrolled in a health examination. Clinical data including anthropometric measurements and serum parameters were collected. The associations between hematological parameters and MS of both genders were analyzed separately. Odds ratio (OR) of MS was calculated by binary logistic regression models. All hematological parameters were related to MS. With leukocyte and erythrocyte counts rising, the risks of developing MS increased in both genders, which was more obvious in women. For instance, in model 3, the ORs of MS in leukocyte quartiles in females were from 1.333 to 2.045 (P < 0.01), while in males, from 1.238 to 1.675 (P < 0.01). Platelet seemed as a protective factor in males. Model 1 and model 3 in quartile 2 demonstrated ORs of 0.922 (P < 0.05) and 0.912 (P < 0.05). However, platelet acted as risk factor in female. For instance, the ORs were 1.253 (P < 0.01), 1.461 (P < 0.01), and 1.322 (P < 0.01) in platelet quartile 4 of all 3 models in female. Gender has influences on the associations between leukocyte, erythrocyte or platelet, and MS. In both genders, higher levels of leukocyte and erythrocyte increased risks of MS. For men, platelet was a protective factor, but for women, platelet seemed as a risk factor.
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Affiliation(s)
| | - Zhaowei Meng
- Department of Nuclear Medicine
- Correspondence: Zhaowei Meng, Department of Nuclear Medicine, Tianjin Medical University General Hospital, Anshan Road No. 154, Heping District, Tianjin, 300052, Peoples Republic of China (e-mail: )
| | - Ming Liu
- Department of Endocrinology and Metabolism
| | | | - Mei Zhu
- Department of Endocrinology and Metabolism
| | - Qing He
- Department of Endocrinology and Metabolism
| | - Qing Zhang
- Department of Health Management, Tianjin Medical University General Hospital, Tianjin, Peoples Republic of China
| | - Li Liu
- Department of Health Management, Tianjin Medical University General Hospital, Tianjin, Peoples Republic of China
| | - Kun Song
- Department of Health Management, Tianjin Medical University General Hospital, Tianjin, Peoples Republic of China
| | | | | | - Xue Li
- Department of Nuclear Medicine
| | - Na Liu
- Department of Nuclear Medicine
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LHRH analog therapy is associated with worse metabolic side effects than bilateral orchiectomy in prostate cancer. World J Urol 2016; 34:1621-1628. [DOI: 10.1007/s00345-016-1831-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 04/12/2016] [Indexed: 11/27/2022] Open
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10
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Decrease in lean body mass in men with prostate cancer receiving androgen deprivation therapy: mechanism and biomarkers. Urology 2013; 81:376-80. [PMID: 23374809 DOI: 10.1016/j.urology.2012.10.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 10/29/2012] [Accepted: 10/30/2012] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To elucidate the mechanism of the androgen deprivation therapy (ADT)-related decrease in lean body mass (LBM). MATERIALS AND METHODS The LBM and blood samples were studied before and after 6 months of ADT in 72 patients with localized prostate cancer. The LBM was assessed using a foot-to-foot bioelectrical impedance analyzer. RESULTS Before ADT, the LBM correlated with none of the serum sex steroid levels; however, it correlated closely with serum 5α-androstane-3α,17β-diol glucuronide (Spearman's rank correlation coefficient = 0.409, P = .001) and insulin-like growth factor-1 (IGF-I, Spearman's rank correlation coefficient = 0.329, P = .005). After ADT, the LBM decreased by 0.9% (P = .036), and the serum testosterone and dihydrotestosterone had decreased by 96.8% and 94.3%, respectively (P <.001 for both), and the IGF-I had increased by 11.6% (from 19.9 to 22.2 nmol/L, P = .001). The serum 1,25-dihydroxyvitamin D3 [1,25(OH)2D] levels decreased after ADT by 9.8% (from 66.2 to 59.7 pg/mL, P = .008), and the post-treatment LBM correlated inversely with 1,25(OH)2D (Spearman's rank correlation coefficient = -0.343, P = .003). The post-treatment LBM was dissociated with 5α-androstane-3α,17β-diol glucuronide and IGF-I. The pretreatment and post-treatment LBMs both correlated inversely with serum sex hormone-binding globulin (P = .024 and P = .016, respectively). CONCLUSION The deficiency in androgen levels was suggested to be a link to the ADT-related decrease in LBM; the androgen metabolite 5α-androstane-3α,17β-diol glucuronide has a potential value for assessing the LBM in untreated men. IGF-I also promotes muscle building and is positively regulated during ADT. Sex hormone-binding globulin possibly accelerates the ADT-related decrease in LBM. Although the mechanism for the decrease in 1,25(OH)2D and its inverse correlation with LBM during ADT is unclear, 1,25(OH)2D might be a biomarker reflecting the ADT-related decrease in LBM.
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Guo W, Bachman E, Li M, Roy CN, Blusztajn J, Wong S, Chan SY, Serra C, Jasuja R, Travison TG, Muckenthaler MU, Nemeth E, Bhasin S. Testosterone administration inhibits hepcidin transcription and is associated with increased iron incorporation into red blood cells. Aging Cell 2013; 12:280-91. [PMID: 23399021 PMCID: PMC3602280 DOI: 10.1111/acel.12052] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2013] [Indexed: 01/01/2023] Open
Abstract
Testosterone administration increases hemoglobin levels and has been used to treat anemia of chronic disease. Erythrocytosis is the most frequent adverse event associated with testosterone therapy of hypogonadal men, especially older men. However, the mechanisms by which testosterone increases hemoglobin remain unknown. Testosterone administration in male and female mice was associated with a greater increase in hemoglobin and hematocrit, reticulocyte count, reticulocyte hemoglobin concentration, and serum iron and transferrin saturation than placebo. Testosterone downregulated hepatic hepcidin mRNA expression, upregulated renal erythropoietin mRNA expression, and increased erythropoietin levels. Testosterone-induced suppression of hepcidin expression was independent of its effects on erythropoietin or hypoxia-sensing mechanisms. Transgenic mice with liver-specific constitutive hepcidin over-expression failed to exhibit the expected increase in hemoglobin in response to testosterone administration. Testosterone upregulated splenic ferroportin expression and reduced iron retention in spleen. After intravenous administration of transferrin-bound (58) Fe, the amount of (58) Fe incorporated into red blood cells was significantly greater in testosterone-treated mice than in placebo-treated mice. Serum from testosterone-treated mice stimulated hemoglobin synthesis in K562 erythroleukemia cells more than that from vehicle-treated mice. Testosterone administration promoted the association of androgen receptor (AR) with Smad1 and Smad4 to reduce their binding to bone morphogenetic protein (BMP)-response elements in hepcidin promoter in the liver. Ectopic expression of AR in hepatocytes suppressed hepcidin transcription; this effect was blocked dose-dependently by AR antagonist flutamide. Testosterone did not affect hepcidin mRNA stability. In conclusion, testosterone inhibits hepcidin transcription through its interaction with BMP/Smad signaling. Testosterone administration is associated with increased iron incorporation into red blood cells.
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Affiliation(s)
- Wen Guo
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
| | - Eric Bachman
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
| | - Michelle Li
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
| | - Cindy N. Roy
- Division of Geriatric Medicine and Gerontology, Johns Hopkins University, Room 2A.44, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA,
| | - Jerzy Blusztajn
- Woods Hole Oceanographic Institution, 266 Woods Hole Rd. MS# 25, Woods Hole, MA 02543-1050, USA,
| | - Siu Wong
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
| | - Stephen Y. Chan
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Carlo Serra
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
| | - Ravi Jasuja
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
| | - Thomas G. Travison
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
| | - Martina U. Muckenthaler
- University of Heidelberg, Department of Molecular Medicine, Otto-Meyerhof-Zentrum, Im Neuenheimer Feld 350, 69120 Heidelberg, Germany,
| | - Elizabeta Nemeth
- Center for Iron Disorders, Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine at UCLA, CHS 52-239, 10833 Le Conte Ave, Los Angeles, CA 90095-1690, USA,
| | - Shalender Bhasin
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston Claude D. Pepper Older Americans Independence Center Boston Medical Center, Boston, MA 02118, USA
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Prostate carcinogenesis with diabetes and androgen-deprivation-therapy-related diabetes: an update. EXPERIMENTAL DIABETES RESEARCH 2012; 2012:801610. [PMID: 22792092 PMCID: PMC3389736 DOI: 10.1155/2012/801610] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Accepted: 05/10/2012] [Indexed: 01/06/2023]
Abstract
Prostate cancer and the androgen deprivation therapy (ADT) thereof are involved in diabetes in terms of diabetes-associated carcinogenesis and ADT-related metabolic disorder, respectively. The aim of this study is to systematically review relevant literature. About 218,000 men are estimated to be newly diagnosed with prostate cancer every year in the United States. Approximately 10% of them are still found with metastasis, and in addition to them, about 30% of patients with nonmetastatic prostate cancer recently experience ADT. Population-based studies have shown that dissimilar to other malignancies, type 2 diabetes is associated with a lower incidence of prostate cancer, whereas recent large cohort studies have reported the association of diabetes with advanced high-grade prostate cancer. Although the reason for the lower prevalence of prostate cancer among diabetic men remains unknown, the lower serum testosterone and PSA levels in them can account for the increased risk of advanced disease at diagnosis. Meanwhile, insulin resistance already appears in 25–60% of the patients 3 months after the introduction of ADT, and long-term ADT leads to a higher incidence of diabetes (reported hazard ratio of 1.28–1.44). Although the possible relevance of cytokines such as Il-6 and TNF-α to ADT-related diabetes has been suggested, its mechanism is poorly understood.
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Okaji Y, Tashiro Y, Gritli I, Nishida C, Sato A, Ueno Y, Del Canto Gonzalez S, Ohki-Koizumi M, Akiyama H, Nakauchi H, Hattori K, Heissig B. Plasminogen deficiency attenuates postnatal erythropoiesis in male C57BL/6 mice through decreased activity of the LH-testosterone axis. Exp Hematol 2011; 40:143-54. [PMID: 22056679 DOI: 10.1016/j.exphem.2011.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 10/21/2011] [Accepted: 10/26/2011] [Indexed: 11/17/2022]
Abstract
Novel roles for the serine protease plasmin have been implicated recently in physiological and pathological processes. However, whether plasmin is involved in erythropoiesis is not known. In the present study, we studied the consequences of plasminogen deficiency on erythropoiesis in plasminogen-deficient (Plg knockout [KO]) mice. Erythroid differentiation was attenuated in male Plg KO mice and resulted in erythroblastic accumulation within the spleen and bone marrow, with increased apoptosis in the former, erythrocytosis, and splenomegaly, whereas similar erythropoietic defect was less prominent in female Plg KO mice. In addition, erythrocyte lifespan was shorter in both male and female Plg KO mice. Erythropoietin levels were compensatory increased in both male and female Plg KO mice, and resulted in a higher frequency of burst-forming units-erythroid within the spleen and bone marrow. Surprisingly, we found that male Plg KO mice, but not their female counterparts, exhibited normochromic normocytic anemia. The observed sex-linked erythropoietic defect was attributed to decreased serum testosterone levels in Plg KO mice as a consequence of impaired secretion of the pituitary luteinizing hormone (LH) under steady-state condition. Surgical castration causing testosterone deficiency and stimulating LH release attenuated erythroid differentiation and induced anemia in wild-type animals, but did not further decrease the hematocrit levels in Plg KO mice. In addition, complementation of LH using human choriogonadotropin, which increases testosterone production, improved the erythropoietic defect and anemia in Plg KO mice. The present results identify a novel role for plasmin in the hormonal regulation of postnatal erythropoiesis by the LH-testosterone axis.
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Affiliation(s)
- Yurai Okaji
- Frontier Research Initiative, Institute of Medical Sciences, University of Tokyo, Tokyo, Japan
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Moyad MA, Roach M. Promoting wellness for patients on androgen deprivation therapy: why using numerous drugs for drug side effects should not be first-line treatment. Urol Clin North Am 2011; 38:303-12. [PMID: 21798392 DOI: 10.1016/j.ucl.2011.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The controversy over androgen deprivation therapy (ADT) for prostate cancer seems to have shifted over the past decade. The issue of adverse events or side effects now seems to dominate over that of clinical efficacy. However, this article provides evidence that questions the treatment of these side effects with numerous prescription medications that have their own unique toxicity profile in patients with nonmetastatic disease. The hope is that patients will no longer be considered passive participants in the prevention and treatment of ADT side effects, now that information is available to help mitigate many of these effects.
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Affiliation(s)
- Mark A Moyad
- Department of Urology, University of Michigan Medical Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-0330, USA.
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Hara N, Takizawa I, Isahaya E, Nishiyama T, Hoshii T, Ishizaki F, Takahashi K. Insulin-like growth factor-1 is associated with regulation of the luteinizing hormone production in men receiving androgen deprivation therapy with gonadotropin-releasing hormone analogues for localized prostate cancer. Urol Oncol 2011; 30:596-601. [PMID: 21458314 DOI: 10.1016/j.urolonc.2010.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 11/01/2010] [Accepted: 11/03/2010] [Indexed: 11/28/2022]
Abstract
BACKGROUND Luteinizing hormone (LH) during androgen-deprivation therapy (ADT) with gonadotropin-releasing hormone analogues (GnRHa) has been thought to be biologically inactive, and the regulation of LH during ADT with GnRHa is thus unknown. Insulin-like growth factor-1 (IGF-1) is involved in the regulation of cell proliferation and differentiation, and IGF-1 production in the liver is dependent on growth hormone (GH) secretion from the anterior pituitary. Despite the presence of IGF-1 receptors in the gonadotroph, associations between the GH/IGF-1 and pituitary-gonadal axes, e.g., whether IGF-1 elicits the LH secretion, remain unclear. METHODS Seventy-one patients with localized prostate cancer, who received ADT with GnRHa, were prospectively studied based on their blood samples before treatment and after ADT for 6 months. We employed highly sensitive assays for measurement of serum testosterone (electrochemiluminescence immunoassay), GH/IGF-1 (radioimmunoassay), adrenocorticotropic hormone (ACTH: immunoradiometric assay), LH (chemiluminescent immunoassay), and dehydroepiandrosterone sulfate (DHEA-S: chemiluminescent enzyme immunoassay). RESULTS No correlation was noted between the pretreatment LH and IGF-1 levels; after ADT, the serum LH level was closely correlated with the IGF-1 concentration [Spearman's correlation coefficient (rs) = 0.370, P = 0.001]. The serum levels of androgens and gonadotropins reduced following ADT (P < 0.001 in all). The serum IGF-1 level increased (22 ± 6 nmol/L) compared with that at the baseline (19 ± 5 nmol/L) (P < 0.001), but no change was observed in the serum GH concentration between before and after ADT (1.4 ± 2.3 vs. 0.9 ± 0.9 μg/L, respectively, P = 0.691). The serum testosterone level was not correlated with the LH level either before or after ADT. The testosterone and DHEA-S levels after ADT were correlated with ACTH concentration (rs = 0.367, P = 0.002 and rs = 0.354, P = 0.002, respectively). We did not identify any correlations between the serum IGF-1 concentration and Gleason score, PSA value, or androgen levels. CONCLUSIONS During ADT with GnRHa, IGF-1 possibly promotes LH production, although its role is unclear. Associations among pituitary-gonadal, pituitary-adrenal, and GH/IGF-1 axes represented by IGF-1-mediated LH secretion and ACTH-mediated androgen synthesis are of interest, since both prostate epithelium proliferation and male anabolic activity are involved in these 3 axes. Assessment of oncologic outcomes is warranted for their significance in patients with prostate cancer.
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Affiliation(s)
- Noboru Hara
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
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Colloca G, Venturino A, Vitucci P. Re: Hara et al.: Decline of the red cell blood count in patients receiving androgen deprivation therapy for localized prostate cancer: impact of ADT on insulin-like growth factor 1 and erythropoesis. (Urology 2010;75:1441-1445). Urology 2010; 76:1020. [PMID: 20932425 DOI: 10.1016/j.urology.2010.06.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2010] [Revised: 06/27/2010] [Accepted: 06/29/2010] [Indexed: 11/25/2022]
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Hara N. Reply by the Authors. Urology 2010. [DOI: 10.1016/j.urology.2010.07.455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Takizawa I, Nishiyama T, Hara N, Isahaya E, Hoshii T, Takahashi K. Serum prostate-specific antigen levels reflect the androgen milieu in patients with localized prostate cancer receiving androgen deprivation therapy: Tumor malignant potential and androgen milieu. Prostate 2010; 70:1395-401. [PMID: 20687212 DOI: 10.1002/pros.21174] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Although androgen deprivation therapy (ADT) has a marked impact on the androgen milieu in vivo and outcomes of prostate cancer (PCa), it remains unclear which parameters reflect the androgen milieu during ADT or whether the milieu is associated with PCa aggressiveness. METHODS Seventy-two patients with localized PCa were prospectively studied based on their blood samples before and after ADT for 6 months. Serum androgens and related values were measured. RESULTS Before ADT, there was no correlation between the serum prostate-specific antigen (PSA) and androgen levels. After ADT, the serum PSA levels were correlated with each level of serum testosterone, dihydrotestosterone, androstenedione, dehydroepiandrosterone-sulfate (DHEA-S), and 3alpha-diol G (P < 0.010 in all). Before ADT, patients with Gleason score of > or = 8 were likely to have lower serum testosterone levels than those with Gleason score of < or = 6 (P = 0.058). After ADT, conversely, the testosterone levels in patients with Gleason score of > or = 8 appeared to be higher than in those with Gleason score of < or = 6 (P = 0.060). The serum DHEA-S level was correlated with Gleason score before and after ADT (P = 0.050 and P = 0.040, respectively). CONCLUSIONS The serum PSA levels well reflect the androgen milieu in localized PCa patients receiving ADT, which can be explained by the Saturation Model and disease control. The androgen milieu in men with high Gleason score PCa is probably less affected by conventional ADT than that in men with low score cancer, which was suggested to be associated with adrenal androgen levels.
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Affiliation(s)
- Itsuhiro Takizawa
- Division of Urology, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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