The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
Testosterone supplementation in men with type 2 diabetes, visceral obesity and partial androgen deficiency
Open accessAbstract
The objective of this study was to assess the effects of oral testosterone supplementation therapy on glucose homeostasis, obesity and sexual function in middle-aged men with type 2 diabetes and mild androgen deficiency. Forty-eight middle-aged men, with type 2 diabetes, (visceral) obesity and symptoms of androgen deficiency, were included in this open-label study. Twenty-four subjects received testosterone undecanoate (TU; 120 mg daily, for 3 months); 24 subjects received no treatment. Body composition was analyzed by bio-impedance. Parameters of metabolic control were determined. Symptoms of androgen deficiency and erectile dysfunction were scored by self-administered questionnaires. TU had a positive effect on (visceral) obesity: statistically significant reduction in body weight (2.66%), waist-hip ratio (-3.96%) and body fat (-5.65%); negligible changes were found in the control group. TU significantly improved metabolic control: decrease in blood glucose values and mean glycated hemoglobin (HbA1c) (from 10.4 to 8.6%). TU treatment significantly improved symptoms of androgen deficiency (including erectile dysfunction), with virtually no change in the control group. There were no adverse effects on blood pressure or hematological, biochemical and lipid parameters, and no adverse events. Oral TU treatment of type 2 diabetic men with androgen deficiency improves glucose homeostasis and body composition (decrease in visceral obesity), and improves symptoms of androgen deficiency (including erectile dysfunction). In these men, the benefit of testosterone supplementation therapy exceeds the correction of symptoms of androgen deficiency and also includes glucose homeostasis and metabolic control.
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In the citing paper
“Insulin sensitivity may improve within few days, but effects on glycemic control become evident only after 3–12 months.”
From Onset of effects of testosterone treatment and time span until maximum effects are achieved (2011) · cites this paper as [31]
In the citing paper
“and a decrease in the waist hip ratio after 3 months (31, 36) or after 6 months and 30 weeks respectively (17).”
From Onset of effects of testosterone treatment and time span until maximum effects are achieved (2011) · cites this paper as [31]
In the citing paper
“A decline in HbA1c was observed after 3 months (31, 36, 43) with further decrease after 12 months (43).”
From Onset of effects of testosterone treatment and time span until maximum effects are achieved (2011) · cites this paper as [31]
In the citing paper
“Several studies indicate that upon testosterone administration, serum glucose is reduced after 3 months in men with impaired glucose tolerance (31, 36, 43).”
From Onset of effects of testosterone treatment and time span until maximum effects are achieved (2011) · cites this paper as [31]
In the citing paper
“A decrease in fatigue and listlessness was found after 1 month (31) or 6 weeks (68).”
From Onset of effects of testosterone treatment and time span until maximum effects are achieved (2011) · cites this paper as [31]
In the citing paper
“Several studies on carotid artery atherosclerosis have demonstrated an inverse relationship between level of T and degree of atherogenesis [8,10].”
In the citing paper
“Two studies in type 2 diabetic men have shown an improvement in glycemic control (26,27) with testosterone replacement therapy”
From Clinical and Biochemical Assessment of Hypogonadism in Men With Type 2 Diabetes (2007) · cites this paper as [27]
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Citations
Cites
Role of Insulin Resistance in Human Disease
Reaven, G. M. (1988) · Diabetes · doi:10.2337/diab.37.12.1595 · Cited by 12,154
Haffner, S. M., Lehto, S., Rönnemaa, T., Pyörälä, K., & Laakso, M. (1998) · New England Journal of Medicine · doi:10.1056/nejm199807233390404 · Cited by 7,000
Impotence and Its Medical and Psychosocial Correlates: Results of the Massachusetts Male Aging Study
Feldman, H. A., Goldstein, I., Hatzichristou, D. G., Krane, R. J., & McKinlay, J. B. (1994) · Journal of Urology · doi:10.1016/s0022-5347(17)34871-1 · Cited by 5,074
Stamler, J., Vaccaro, O., Neaton, J. D., Wentworth, D., & The Multiple Risk Factor Intervention Trial Research Group (1993) · Diabetes Care · doi:10.2337/diacare.16.2.434 · Cited by 4,063
Rosen, R., Cappelleri, J. C., Smith, M., Lipsky, J., & Peña, B. (1999) · International Journal of Impotence Research · doi:10.1038/sj.ijir.3900472 · Cited by 3,095
Kaplan, N. M. (1989) · Archives of Internal Medicine · doi:10.1001/archinte.149.7.1514 · Cited by 1,672
(1999) · doi:10.1016/s0090-4295(99)00099-0 · Cited by 1,051
Kaplan, N. M. (1989) · Archives of Internal Medicine · doi:10.1001/archinte.1989.00390070054005 · Cited by 842
The effects of testosterone treatment on body composition and metabolism in middle-aged obese men.
Mårin, P., Holmäng, S., Jönsson, L., Sjöström, L., Kvist, H., Holm, G., Lindstedt, G., & Björntorp, P. A. (1992) · PubMed · Cited by 553
Androgen Treatment of Abdominally Obese Men
Mårin, P., Holmtäng, S., Gustafsson, C., Jönsson, ‡., Kvist, ‡., Elander, A., Eldh, J., Sjöström, L., Holm, G., & Björntorp, P. (1993) · Obesity Research · doi:10.1002/j.1550-8528.1993.tb00618.x · Cited by 345
Research works printed but not linked: 6
- Carlin BW., Metab Clin Exp, 19
- Popivanov P, Medicographia
- Mårin P, 1992, Eur J Med, 1, 329
- Mårin P, 1992, Int J Obes Relat Metab Disord, 16, 991
- Rebuffe-Scrive M, 1991, Int J Obes, 15, 791
- Lund BC, 1999, Pharmaco- therapy, 19, 961
Cited by
Sorted by citations
Items 301–380 of 380
Ishikawa, K., Tsujimura, A., Kanda, T., Narita, S., Anno, Y., Wakita, H., Taniguchi, A., Uesaka, Y., Nozaki, T., Shirai, M., et al. (2025) · International Journal of Urology · doi:10.1111/iju.70128 · Cited by 1
Impact of Testosterone Deficiency and Testosterone Therapy on Men’s Health
Traish, A. M. (2025) · Springer eBooks · doi:10.1007/978-3-031-89650-7_13 · Cited by 1
Endogenous Sex Hormones and Risk of Type 2 Diabetes Mellitus in Men and Women
Golden, S. H. (2010) · Principles of Gender-Specific Medicine · doi:10.1016/b978-0-12-374271-1.00056-3 · Cited by 1
Androgens, visceral obesity and the risks for cardiovascular disease and diabetes mellitus
Gooren, L. J. (2007) · The Journal of Men s Health and Gender · doi:10.1016/j.jmhg.2007.02.001 · Cited by 1
Can the administration of testosterone to men with late-onset hypogonadism be discontinued?
Gooren, L. J. (2008) · Journal of Men s Health · doi:10.1016/j.jomh.2008.09.005 · Cited by 1
METABOLI) SYNDROME AND MALE REPRODUCTIVE HEALTH
Burmistrova, T. A., & Zykova, T. A. (2012) · CyberLeninK (CyberLeninka) · Cited by 1
Are Androgens Valuable in Management of Diabetes?
Kakabadze, M. (2017) · Current Research in Diabetes & Obesity Journal · doi:10.19080/crdoj.2017.02.555598 · Cited by 3
La dysfonction érectile du diabétique
Colson, M.-H., Cuzin, B., Faix, A., Grellet, L., & Huyghes, É. (2018) · Sexologies · doi:10.1016/j.sexol.2018.01.011 · Cited by 1
Laskin, G. R., Steiner, J. L., Berryman, C. E., & Gordon, B. S. (2023) · Biochemical and Biophysical Research Communications · doi:10.1016/j.bbrc.2023.10.005 · Cited by 1
Benefícios e riscos do tratamento da andropausa
Martits, A. M., & Costa, E. M. F. (2005) · Revista da Associação Médica Brasileira · doi:10.1590/s0104-42302005000200009 · Cited by 1
[Action of androgens on fat distribution and metabolic balance].
Tostain, J.-B., Heim, M., & Rossi, D. (2004) · PubMed · Cited by 1
Cardiometabolic effects of testosterone in older men
Hackett, G. I. (2015) · Cardiovascular Endocrinology · doi:10.1097/xce.0000000000000050 · Cited by 1
Hypogonadism in Male Sexual Dysfunction
Stoian, D. L., Mozos, I. M., Craina, M. L., Paul, C., Velea, I. P., Schiller, A., & Crăciunescu, M. (2017) · InTech eBooks · doi:10.5772/intechopen.69107 · Cited by 1
Tiwari, A., & Srivastava, A. (2016) · Journal of Evidence Based Medicine and Healthcare · doi:10.18410/jebmh/2016/975 · Cited by 1
El-kady, D. S., Mabrouk, M., Kotob, S. E., Abdelhalim, M. M., Elmegeed, G. A., Beheri, H. H., & Ahmed, H. H. (2021) · Egyptian Journal of Chemistry · doi:10.21608/ejchem.2021.57952.3295 · Cited by 1
State of the Art Reviews : Male Menopause: Fact or Fiction?
Wald, M., Miner, M. M., & Seftel, A. D. (2008) · American Journal of Lifestyle Medicine · doi:10.1177/1559827607311513 · Cited by 1
Traish, A. M., Saad, F., & Guay, A. T. (2008) · Cited by 1
Hackett, G. I. (2017) · Wiley eBooks · doi:10.1002/9781118954621.ch13 · Cited by 1
Willemse, P.-P. M., Burggraaf, J., Hamdy, N. A. T., & Osanto, S. (2013) · British Journal of Cancer · doi:10.1038/bjc.2013.567 · Cited by 1
The interrelationship of sex steroid levels, body composition and bone characteristics in men
Lapauw, B. (2009) · Ghent University Academic Bibliography (Ghent University)
The Effect of Testosterone on Metabolic Syndrome and Type 2 Diabetes
Quammen, A. (2010) · CommonKnowledge Research Repository (Pacific University Oregon)
Hormonwirkungen und Hormontherapie
Schubert, M., Jockenhövel, F., Brüning, J. C., Allolio, B., Callies, F., Lerchl, A., Gerhards, S., Kühnert, B., & Nieschlag, E. (2004) · Springer eBooks · doi:10.1007/978-3-642-18705-6_2
Déficit androgénico y síndrome metabólico
Hernández, J. J. C. (2007) · Revista Internacional de Andrología · doi:10.1016/s1698-031x(07)74065-7
Male hypogonadism and the metabolic syndrome: lessons from clinical studies
Rodzvilla, J. P. (2006) · Drug Development Research · doi:10.1002/ddr.20135
Coronary Artery Disease in Men: The Role of Sex Hormones
Channer, K. S. (2006) · Future Cardiology · doi:10.2217/14796678.2.3.247
Hypoandrogen–metabolic (HAM) syndrome: an important men's health issue
Gould, D. C. (2007) · The Journal of Men s Health and Gender · doi:10.1016/j.jmhg.2007.03.007
Effects of Testosterone on Adipose Tissue Metabolism
Jeong, S. (2013) · The Journal of the Korean Institute of Information and Communication Engineering · doi:10.6109/jkiice.2013.17.12.2995
Farrell, J. A. B., Deshmukh, A., & Baghaie, A. A. (2010) · Expert Review of Endocrinology & Metabolism · doi:10.1586/eem.09.59
Effects of Androgen on the Cardiovascular System in the Aging Male
Kim, J. W., Kim, J. J., & Moon, D. G. (2011) · Korean Journal of Andrology · doi:10.5534/kja.2011.29.1.10
Impact of Testosterone Levels and Treatment on Aging Men’s Health: Should We Worry?
Barqawi, A. B., Gewehr, E. V., Akduman, B., & Crawford, E. D. (2005) · Aging Health · doi:10.2217/1745509x.1.2.253
Hormones and the heart — is sleep apnoea the link?: Reply
Malkin, C. J. (2004) · European Heart Journal · doi:10.1016/j.ehj.2003.07.013
Review Testosterone and Erectile Dysfunction
Yassin, A. A., Saad, F., & Schering, B. (2008)
Testosterone and frailty in elderly men
Emmelot‐Vonk, M. H. (2009) · Utrecht University Repository (Utrecht University)
PHYSIOLOGICAL ASPECTS OF TESTOSTERONE ADMINISTRATION IN ANDROPAUSE
Judiwati, R., I’tishom, R., & Winarso, H. (2007) · Majalah Ilmu Faal Indonesia
Tip 2 Diyabetik Erkeklerde Klinik ve Biyokimyasal Olarak Hipogonadizmin Değerlendirilmesi
Tekin, B., Tekin, S., Temizkan, Ş., Karabayraktar, T., Doğan, B. Ç., Orçun, A., Tekçe, M., Ustaoğlu, M. A., & Sargın, M. (2015) · Ankara Medical Journal · doi:10.17098/amj.80992
Testerone Replacement Therapy for Men with Metabolic Syndrome
Soedjono, J. (2011)
Naharcı, M. İ., Bolu, E., Karadurmuş, N., & Başaran, Y. (2010)
Age-Related Androgen Deficiency In Men And A Cardiovascular Disease
Požarskis, A., Pozarska, J., & Ērenpreiss, J. (2011) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.12647235
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Yassin, A. A., Saad, F., & Schering, B. (2008)
Júnior, A. D. S., Clapauch, R., & Buksman, S. (2009)
Applegarth, L. D., Oates, R. D., & Schlegel, P. N. (2013) · Cambridge University Press eBooks · doi:10.1017/cbo9780511997761.005
정선효 (2013)
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Walker, C. N., Meller, S. M., & Mena‐Hurtado, C. (2013)
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Zini, A. S., & Alhathal, N. K. (2013) · Cambridge University Press eBooks · doi:10.1017/cbo9781139169349.013
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Reis, L. O., & Miyaoka, R. (2015) · Elsevier eBooks · doi:10.1016/b978-0-12-800872-0.00019-6
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Pós-Graduação, P. D., & Médicas, C. (2010)
Causas y consecuencias del hipogonadismo en varones con diabetes mellitus tipo 2
Ruiz, A. H. (2015) · Gredos (University of Salamanca) · doi:10.14201/gredos.128430
EVALUATION OF TESTOSTERONE DEFICIENCY IN PATIENTS OF TYPE 2 DIABETES MELLITUS
Chandel, K., Gupta, A., Agrawal, P., & Nath, K. (2016) · Journal of Evolution of Medical and Dental Sciences · doi:10.14260/jemds/2016/309
The Challenges and Opportunities of Managing Diabetes in Long-Term Care
Marasco, R. A., Samos, L. F., & Pandya, N. (2008) · Journal of the American Medical Directors Association · doi:10.1016/j.jamda.2008.04.005
Effects of testosterone levels on mortality and cardiovascular risk in men with Type 2 diabetes
Muraleedharan, V. (2018) · White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York)
Albayrak, A. T., & Şerefoğlu, E. C. (2019) · Elsevier eBooks · doi:10.1016/b978-0-12-816665-9.00007-x
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Bateman, L. (2020) · Sheffield Hallam University · doi:10.7190/shu-thesis-00351 · Cited by 1
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(2013) · Journal of Andrology and Gynaecology · doi:10.13188/2332-3442.1000007
(2013) · Canadian Journal of Diabetes · doi:10.1016/j.jcjd.2013.03.434
(2013) · Canadian Journal of Diabetes · doi:10.1016/j.jcjd.2013.02.033
Brock, G. B., & Harper, W. R. (2013) · Canadian Journal of Diabetes · doi:10.1016/j.jcjd.2013.07.038
Shimshi, M., & Potenza, M. V. (2009) · Journal of clinical lipidology · doi:10.1016/j.jacl.2009.01.002
Raynor, M., Pinsky, M. R., Chawla, A., & Hellstrom, W. J. G. (2011) · Humana Press eBooks · doi:10.1007/978-1-60761-916-1_14
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Metadata
- Authors
- Boyanov, M. A., Boneva, Z., & Christov, V. G.
- Affiliations
- Alexandrovska Hospital (BG)
- Ministry of Interior (BG)
- ORCID
- Boyanov, M. A.
- Venue
- The Aging Male
- Publisher
- Informa UK Limited
- Published
- 2003-01
- Volume
- 6
- Issue
- 1
- Pages
- 1-7
- ISSN
- 1368-5538 (ISSN-L)
- 1473-0790
- OpenAlex
- W2134451964
- Cited by
- 381
- References
- 32
- Citations by year
- 2026: 2 · 2025: 5 · 2024: 2 · 2023: 9 · 2022: 25 · 2021: 11 · 2020: 13 · 2019: 8 · 2018: 16 · 2017: 16 · 2016: 13 · 2015: 21 · 2014: 20 · 2013: 29 · 2012: 19
- FWCI
- 7.34
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- The Aging Male (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
- Health Sciences › Medicine › Reproductive Medicine › Sperm and Testicular Function
- Keywords
- testosterone supplementation, testosterone undecanoate, type 2 diabetes, androgen deficiency, visceral obesity, glucose homeostasis, HbA1c, erectile dysfunction, body composition, waist-to-hip ratio, middle-aged men
- MeSH terms
- Androgens, Blood Glucose, Body Composition, Diabetes Mellitus, Type 2, Homeostasis, Humans, Erectile Dysfunction, Libido, Male, Middle Aged, Obesity, Testosterone, Hormone Replacement Therapy
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