A novel spreadsheet method for calculating the free serum concentrations of testosterone, dihydrotestosterone, estradiol, estrone and cortisol: With illustrative examples from male and female populations
Abstract
In humans, testosterone (T), dihydrotestosterone (DHT), estradiol (E2), estrone (E1) and cortisol (C) bind to the serum proteins sex hormone-binding globulin (SHBG), albumin (Alb) and corticosteroid-binding globulin (CBG). Equilibrium dialysis is considered to be the "gold standard" for measuring the free concentrations of these steroids but is technically difficult and not widely available. Based on a mathematical model of the 5-ligand/3-protein binding equilibria, we developed a novel spreadsheet method for calculating the free and bioavailable (free+Alb-bound) concentrations of each steroid in terms of the total steroid and protein concentrations. The model uses 15 association constants K(SHBG-X), K(Alb-X), and K(CBG-X) (X=T, DHT, E2, E1 and C) that have been estimated from a systematic review of published binding studies. The computation of the free and bioavailable concentrations uses an iterative numerical method that can be readily programmed on a spreadsheet. The method is illustrated with six examples corresponding to young men (YM), old men (OM), obese men (Ob M), young women (YM), pregnant women in the 3rd trimester (Preg T3) and oophorectomized women on oral conjugated equine estrogens (CEE). The resulting free hormone concentrations for YM and YW fall within the normal references ranges obtained by equilibrium dialysis for all five hormones. The model also accounts for the competitive binding effects of high estrogen levels on the free T levels in Preg T3. This novel spreadsheet method provides a "user-friendly" approach for estimating the free concentrations of circulating sex hormones and cortisol in men and women.
Integrity signals
Registry
Cites
Statistics
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Testosterone has the second highest association constant for SHBG (Ka 1-2 × 10^9 M−1 s−1), whereas DHT has the highest Ka for SHBG (2.69 × 10^9 M−1 s−1).
“Among steroid hormones, T has the second highest association constant (Ka), valued at 1–2 × 109 M−1 s−1, whereas DHT has the highest Ka for SHBG (2.69 × 109 M−1 s−1) [16].”
From Role of sex hormone-binding globulin in the free hormone hypothesis and the relevance of free testosterone in androgen physiology (2022) · cites this paper as [16]
The first category of free T equations was derived from the general law of mass action, with association constants for albumin and SHBG obtained from in vitro experiments by Scatchard analysis.
“First, several equations were derived from the general law of mass action. Association constants for albumin and SHBG used in these formulas were obtained from in vitro experiments by linearizing data through Scatchard analysis [16, 208, 212].”
From Role of sex hormone-binding globulin in the free hormone hypothesis and the relevance of free testosterone in androgen physiology (2022) · cites this paper as [16]
Free T algorithms can be divided into three categories: linear mass action, non-linear allosteric, and empirical bootstrap.
“A wide spectrum of algorithms for free T exists, which can broadly be divided into three categories (Table 6).”
From Role of sex hormone-binding globulin in the free hormone hypothesis and the relevance of free testosterone in androgen physiology (2022) · cites this paper as [16]
Circulating testosterone is predominantly bound to sex hormone binding globulin and albumin, with small percentages freely circulating or bound to corticosteroid binding globulin.
“Circulating T is predominantly bound to sex hormone binding globulin (SHBG) and albumin, with small percentages freely circulating or associated with corticosteroid binding globulin.”
From Challenges in Testosterone Measurement, Data Interpretation, and Methodological Appraisal of Interventional Trials (2016) · cites this paper as [10]
Testosterone levels were measured by a radioimmunoassay validated against liquid chromatography tandem mass spectrometry.
“Testosterone levels were measured by a radioimmunoassay that has been validated against liquid chromatography tandem mass spectrometry (13) and has a sensitivity of 10 ng/dL.”
From Testosterone induces erythrocytosis via increased erythropoietin and suppressed hepcidin: evidence for a new erythropoietin/hemoglobin set point (2014) · cites this paper as [13]
The trial was randomized, double-blind, placebo-controlled.
“The Testosterone in Older Men with Mobility Limitation trial was a randomized, double-blind, placebo-controlled trial whose design and primary results have been published (13).”
From Testosterone induces erythrocytosis via increased erythropoietin and suppressed hepcidin: evidence for a new erythropoietin/hemoglobin set point (2014) · cites this paper as [13]
Randomization was concealed and computer-generated with block size 6, stratified by age.
“Eligible participants were randomized to placebo or testosterone gel based on concealed, computer-generated randomization tables, using a block size of 6. Randomization was stratified by age: (a) 65-74 and (b) 75 and older.”
From Testosterone induces erythrocytosis via increased erythropoietin and suppressed hepcidin: evidence for a new erythropoietin/hemoglobin set point (2014) · cites this paper as [13]
Cites
A Critical Evaluation of Simple Methods for the Estimation of Free Testosterone in Serum
Vermeulen, A., Verdonck, L., & Kaufman, J. M. (1999) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem.84.10.6079 · Cited by 3,824 · see citing works
DUNN, J. F., NISULA, B. C., & RODBARD, D. (1981) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem-53-1-58 · Cited by 1,238 · see citing works
ANDERSON, D. C. (1974) · Clinical Endocrinology · doi:10.1111/j.1365-2265.1974.tb03298.x · Cited by 1,127 · see citing works
Södergard, R., Bäckström, T., Shanbhag, V., & Carstensen, H. (1982) · Journal of Steroid Biochemistry · doi:10.1016/0022-4731(82)90038-3 · Cited by 1,080 · see citing works
The Free Hormone Hypothesis: A Physiologically Based Mathematical Model*
MENDEL, C. M. (1989) · Endocrine Reviews · doi:10.1210/edrv-10-3-232 · Cited by 961 · see citing works
Transdermal testosterone treatment in women with impaired sexual function after oophorectomy.
Shifren, J. L., Braunstein, G. D., Simon, J. A., Casson, P. R., Buster, J. E., Redmond, G. P., Burki, R. E., Ginsburg, E. S., Rosen, R. C., Leiblum, S. R., et al. (2000) · New England Journal of Medicine · doi:10.1056/nejm200009073431002 · Cited by 954 · see citing works
Self-citationKudielka, B. M., Buske-Kirschbaum, A., Hellhammer, D. H., & Kirschbaum, C. (2004) · Psychoneuroendocrinology · doi:10.1016/s0306-4530(02)00146-4 · Cited by 851 · see citing works
Leptin and Androgens in Male Obesity: Evidence for Leptin Contribution to Reduced Androgen Levels
Isidori, A. M., Caprio, M., Strollo, F., Moretti, C., Frajese, G., Isidori, A., & Fabbri, A. (1999) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem.84.10.6082 · Cited by 560 · see citing works
Kenny, A. M., Prestwood, K. M., Gruman, C. A., Marcello, K. M., & Raisz, L. G. (2001) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/56.5.m266 · Cited by 456 · see citing works
Vermeulen, A. (1996) · Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.81.5.1821 · Cited by 455 · see citing works
The Apparent Free Testosterone Concentration, An Index of Androgenicity
Vermeulen, A., Stoica, T., & Verdonck, L. (1971) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem-33-5-759 · Cited by 388 · see citing works
Vermeulen, A., Verdonck, L., Straeten, M. V. D., & ORIE, N. (1969) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem-29-11-1470 · Cited by 385 · see citing works
Measurement of Free Hormones in Blood
Ekins, R. P. (1990) · Endocrine Reviews · doi:10.1210/edrv-11-1-5 · Cited by 308 · see citing works
Miller, K. K., Rosner, W., Lee, H., Hier, J., Sesmilo, G., Schoenfeld, D., Neubauer, G., & Klibanski, A. (2004) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2003-030680 · Cited by 301 · see citing works
Sex hormone-binding globulin mediates steroid hormone signal transduction at the plasma membrane
Rosner, W., Hryb, D. J., Khan, M., Nakhla, A. M., & Romas, N. A. (1999) · The Journal of Steroid Biochemistry and Molecular Biology · doi:10.1016/s0960-0760(99)00070-9 · Cited by 195 · see citing works
Soldin, O. P., Guo, T., Weiderpass, E., Tractenberg, R. E., Hilakivi‐Clarke, L., & Soldin, S. J. (2005) · Fertility and Sterility · doi:10.1016/j.fertnstert.2005.02.045 · Cited by 186 · see citing works
Ly, L. P., & Handelsman, D. J. (2005) · European Journal of Endocrinology · doi:10.1530/eje.1.01844 · Cited by 180 · see citing works
Rosner, W., & Smith, R. N. (1975) · Biochemistry · doi:10.1021/bi00693a006 · Cited by 154 · see citing works
Pétra, P. H. (1991) · The Journal of Steroid Biochemistry and Molecular Biology · doi:10.1016/0960-0760(91)90299-k · Cited by 147 · see citing works
Mathematical theory of cross-reactive radioimmunoassay and ligand-binding systems at equilibrium
Feldman, H. A., Rodbard, D., & Levine, D. M. (1972) · Analytical Biochemistry · doi:10.1016/0003-2697(72)90216-3 · Cited by 143 · see citing works
Errors in the Measurement of Plasma Free Testosterone 1
Rosner, W. (1997) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem.82.6.9999 · Cited by 140 · see citing works
The Free Hormone Hypothesis Distinction from the Free Hormone Transport Hypothesis
Mendel, C. M. (1992) · Journal of Andrology · doi:10.1002/j.1939-4640.1992.tb01639.x · Cited by 128 · see citing works
Morris, P., Malkin, C., Channer, K., & Jones, T. (2004) · European Journal of Endocrinology · doi:10.1530/eje.0.1510241 · Cited by 122 · see citing works
Zumoff, B., Miller, L. K., & Strain, G. W. (2003) · Metabolism · doi:10.1016/s0026-0495(03)00186-0 · Cited by 118 · see citing works
Purnell, J. Q., Kahn, S. E., Samuels, M. H., Brandon, D., Loriaux, D. L., & Brunzell, J. D. (2009) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.90769.2008 · Cited by 112 · see citing works
de Ronde, W., van der Schouw, Y. T., Muller, M., Grobbee, D. E., Gooren, L. J., Pols, H. A. P., & de Jong, F. H. (2005) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2004-0422 · Cited by 97 · see citing works
Mickelson, K. E., Forsthoefel, J., & Westphal, U. (1981) · Biochemistry · doi:10.1021/bi00524a047 · Cited by 95 · see citing works
Moll, G., ROSENFIEL, R. L., & Helke, J. (1981) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jcem-52-5-868 · Cited by 92 · see citing works
Klosterman, L. L., Murai, J. T., & Siiteri, P. K. (1986) · Endocrinology · doi:10.1210/endo-118-1-424 · Cited by 89 · see citing works
Shifren, J. L., Desindes, S., McIlwain, M., Doros, G., & Mazer, N. A. (2007) · Menopause · doi:10.1097/gme.0b013e31803867a · Cited by 89 · see citing works
Self-citationInterspecies variations of corticosteroid-binding globulin parameters
Gayrard, V., Alvinerie, M., & Toutain, P. (1996) · Domestic Animal Endocrinology · doi:10.1016/0739-7240(95)00042-9 · Cited by 83 · see citing works
Transport of protein-bound steroid hormones into liver in vivo.
Pardridge, W. M., & Mietus, L. J. (1979) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.1979.237.4.e367 · Cited by 79 · see citing works
Plasma Cortisol Transport and Primate Evolution
Pugeat, M., Chrousos, G. P., Nisula, B. C., Loriaux, D. L., Brandon, D. D., & LIPSETT, M. B. (1984) · Endocrinology · doi:10.1210/endo-115-1-357 · Cited by 79 · see citing works
The Endocrine Function of the Human Testis
(1973) · Elsevier eBooks · doi:10.1016/c2013-0-10910-5 · Cited by 75 · see citing works
Avvakumov, G. V., Grishkovskaya, I., Muller, Y. A., & Hammond, G. L. (2001) · Journal of Biological Chemistry · doi:10.1074/jbc.m106274200 · Cited by 74 · see citing works
Sex hormone-binding globulin/androgen-binding protein: Steroid-binding and dimerization domains
Hammond, G. L., & Bocchinfuso, W. P. (1995) · The Journal of Steroid Biochemistry and Molecular Biology · doi:10.1016/0960-0760(95)00110-l · Cited by 71 · see citing works
Interaction of Estrogen Therapy and Thyroid Hormone Replacement in Postmenopausal Women
Mazer, N. A. (2004) · Thyroid · doi:10.1089/105072504323024561 · Cited by 68 · see citing works
Self-citationKerlan, V., Nahoul, K., Le Martelot, M., & Bercovici, J. (1994) · Clinical Endocrinology · doi:10.1111/j.1365-2265.1994.tb02478.x · Cited by 66 · see citing works
Maternal hormone levels among populations at high and low risk of testicular germ cell cancer
Zhang, Y., Graubard, B. I., Klebanoff, M. A., Ronckers, C. M., Stanczyk, F. Z., Longnecker, M. P., & McGlynn, K. A. (2005) · British Journal of Cancer · doi:10.1038/sj.bjc.6602545 · Cited by 45 · see citing works
Cherkasov, A., Ban, F., Santos-Filho, O., Thorsteinson, N., Fallahi, M., & Hammond, G. L. (2008) · Journal of Medicinal Chemistry · doi:10.1021/jm7011485 · Cited by 42 · see citing works
Westphal, U. (1955) · Endocrinology · doi:10.1210/endo-57-4-456 · Cited by 37 · see citing works
Fernández‐Real, J. M., PUGEAT, M. M., López‐Bermejo, A., Bornet, H., & Ricart, W. (2005) · Metabolism · doi:10.1016/j.metabol.2004.11.015 · Cited by 32 · see citing works
Interactions of steroids with human plasma proteins
Slaunwhite, W. R., Rosenthal, H. E., & Sandberg, A. A. (1963) · Archives of Biochemistry and Biophysics · doi:10.1016/0003-9861(63)90116-4 · Cited by 27 · see citing works
THE PHYSICAL STATE OF TESTOSTERONE IN PLASMA
Vermeulen, A. (1973) · Elsevier eBooks · doi:10.1016/b978-0-12-380101-2.50013-x · Cited by 26 · see citing works
Corticosteroid-binding globulin
Westphal, U. (1983) · Molecular and Cellular Biochemistry · doi:10.1007/bf00673709 · Cited by 25 · see citing works
Belgorosky, A., Escobar, M. E., & Rivarola, M. A. (1987) · Journal of Steroid Biochemistry · doi:10.1016/0022-4731(87)91061-2 · Cited by 25 · see citing works
Metzger, J., Schnitzbauer, A. A., Meyer, M., Söder, M., Cuilleron, C. Y., Hauptmann, H., Huber, E., & Luppa, P. B. (2003) · Biochemistry · doi:10.1021/bi035269k · Cited by 25 · see citing works
Shanbhag, V. P., & Södergård, R. (1986) · Journal of Steroid Biochemistry · doi:10.1016/0022-4731(86)90118-4 · Cited by 24 · see citing works
Circulating Progesterone and Obesity in Men
Blanchette, S., Marceau, P., Biron, S., Brochu, G., & Tchernof, A. (2006) · Hormone and Metabolic Research · doi:10.1055/s-2006-925392 · Cited by 22 · see citing works
BINDING OF 5α-ANDROSTANE-3α,17β-DIOL TO HUMAN PLASMA PROTEINS
CLARK, A. F., & BIRD, C. E. (1973) · Journal of Endocrinology · doi:10.1677/joe.0.0570289 · Cited by 14 · see citing works
Jong, D. A., & James, A. (1977) · Pro Rege · Cited by 8 · see citing works
Steady-state pharmacokinetics of conjugated equine estrogens in healthy, postmenopausal women.
Mayer, P. R., Tse, S. Y. H., Sendi, M., Bourg, D., & Morrison, D. (2008) · PubMed · Cited by 7 · see citing works
Pripp, U., Schenck-Gustafsson, K. G., Landgren, B.-M., & Carlström, K. (2004) · Scandinavian Journal of Clinical and Laboratory Investigation · doi:10.1080/00365510410002995 · Cited by 6 · see citing works
Flagged first, then by citations
Cited by
Sorted by citations
Adverse Events Associated with Testosterone Administration
Basaria, S., Coviello, A. D., Travison, T. G., Storer, T. W., Farwell, W. R., Jette, A. M., Eder, R., Tennstedt, S., Ulloor, J., Zhang, A., et al. (2010) · New England Journal of Medicine · doi:10.1056/nejmoa1000485 · Cited by 1,494 · see citing works
Self-citationBachman, E., Travison, T. G., Basaria, S., Davda, M. N., Guo, W., Li, M., Connor Westfall, J., Bae, H., Gordeuk, V., & Bhasin, S. (2014) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/glt154 · Cited by 426 · see citing works
Lindheim, L., Bashir, M., Münzker, J., Trummer, C., Zachhuber, V., Leber, B., Horvath, A., Pieber, T. R., Gorkiewicz, G., Stadlbauer, V., et al. (2017) · PLOS ONE · doi:10.1371/journal.pone.0168390 · Cited by 416 · see citing works
“Free testosterone and free DHT were calculated from total testosterone/DHT and SHBG according to Mazer, assuming a blood albumin concentration of 6.2 μmol/l [28].”
InfluentialA Reappraisal of Testosterone’s Binding in Circulation: Physiological and Clinical Implications
Goldman, A. L., Bhasin, S., Wu, F. C. W., Krishna, M., Matsumoto, A. M., & Jasuja, R. (2017) · Endocrine Reviews · doi:10.1210/er.2017-00025 · Cited by 414 · see citing works
Androgen therapy in women: a reappraisal: an Endocrine Society Clinical Practice Guideline
Wierman, M. E., Arlt, W., Basson, R., Davis, S. R., Miller, K. K., Murad, M. H., Rosner, W., & Santoro, N. (2014) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2014-2260 · Cited by 363 · see citing works
Bhasin, S., Pencina, M., Jasuja, G. K., Travison, T. G., Coviello, A., Orwoll, E., Wang, P. Y., Nielson, C., Wu, F., Tajar, A., et al. (2011) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2010-3012 · Cited by 355 · see citing works
Basaria, S. (2014) · The Lancet · doi:10.1016/s0140-6736(13)61126-5 · Cited by 328 · see citing works
Basaria, S., Harman, S. M., Travison, T. G., Hodis, H., Tsitouras, P., Budoff, M., Pencina, K. M., Vita, J., Dzekov, C., Mazer, N. A., et al. (2015) · JAMA · doi:10.1001/jama.2015.8881 · Cited by 268 · see citing works
Self-citationLiquid chromatography tandem mass spectrometry for analysis of steroids in clinical laboratories
Kushnir, M. M., Rockwood, A. L., Roberts, W. L., Yue, B., Bergquist, J., & Meikle, A. W. (2010) · Clinical Biochemistry · doi:10.1016/j.clinbiochem.2010.07.008 · Cited by 226 · see citing works
Genetic determinants of serum testosterone concentrations in men
Ohlsson, C., Wallaschofski, H., Lunetta, K. L., Stolk, L., Perry, J. R. B., Koster, A., Petersen, A.-K., Eriksson, J., Lehtimäki, T., Huhtaniemi, I. T., et al. (2011) · PLoS Genetics · doi:10.1371/journal.pgen.1002313 · Cited by 224 · see citing works
Frederiksen, H., Johannsen, T. H., Andersen, S. E., Albrethsen, J., Landersoe, S. K., Petersen, J. H., Andersen, A. N., Vestergaard, E. T., Schorring, M. E., Linneberg, A., et al. (2020) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/clinem/dgz196 · Cited by 211 · see citing works
Murri, M., Insenser, M. R., Fernández‐Durán, E., San‐Millán, J. L., & Escobar-Morreale, H. F. (2013) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2013-2218 · Cited by 188 · see citing works
Influence of sex and hormone status on circulating natriuretic peptides
Lam, C. S. P., Cheng, S., Choong, K., Larson, M. G., Murabito, J. M., Newton-Cheh, C., Bhasin, S., McCabe, E. L., Miller, K. K., Redfield, M. M., et al. (2011) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2011.03.042 · Cited by 181 · see citing works
Khan, A. M., Cheng, S. C., Magnusson, M., Larson, M. G., Newton‐Cheh, C., McCabe, E. L., Coviello, A. D., Florez, J. C., Fox, C. S., Levy, D. A., et al. (2011) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2011-1182 · Cited by 175 · see citing works
Storer, T. W., Basaria, S., Traustadottir, T., Harman, S. M., Pencina, K., Li, Z., Travison, T. G., Miciek, R., Tsitouras, P., Hally, K., et al. (2016) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2016-2771 · Cited by 174 · see citing works
Travison, T. G., Basaria, S., Storer, T. W., Jette, A. M., Miciek, R., Farwell, W. R., Choong, K., Lakshman, K., Mazer, N. A., Coviello, A. D., et al. (2011) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/glr100 · Cited by 160 · see citing works
Self-citationKrasnoff, J. B., Basaria, S., Pencina, M. J., Jasuja, G. K., Vasan, R. S., Ulloor, J., Zhang, A., Coviello, A., Kelly-Hayes, M., D'Agostino, R. B., et al. (2010) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2009-2680 · Cited by 152 · see citing works
Bhasin, S., Travison, T. G., Storer, T. W., Lakshman, K., Kaushik, M., Mazer, N. A., Ngyuen, A.-H., Davda, M. N., Jara, H., Aakil, A., et al. (2012) · JAMA · doi:10.1001/jama.2012.227 · Cited by 152 · see citing works
Self-citationBasaria, S. S., Collins, L. F., Dillon, E. L., Orwoll, K., Storer, T. W., Miciek, R., Ulloor, J., Zhang, A., Eder, R. V., Zientek, H., et al. (2010) · The Journals of Gerontology Series A · doi:10.1093/gerona/gls078 · Cited by 154 · see citing works
Surampudi, P. N., Wang, C., & Swerdloff, R. S. (2012) · International Journal of Endocrinology · doi:10.1155/2012/625434 · Cited by 151 · see citing works
Aging and the Male Reproductive System.
Kaufman, J., Lapauw, B., Mahmoud, A., T'sjoen, G., & Huhtaniemi, I. (2019) · Endocrine reviews · doi:10.1210/er.2018-00178 · Cited by 97 · see citing works
ORIGINAL ARTICLE: Accuracy of calculated free testosterone formulae in men
Ly, L. P., Sartorius, G., Hull, L., Leung, A., Swerdloff, R. S., Wang, C., & Handelsman, D. J. (2010) · Clinical Endocrinology · doi:10.1111/j.1365-2265.2010.03804.x · Cited by 172 · see citing works
Acupuncture for ovulation induction in polycystic ovary syndrome: a randomized controlled trial
Johansson, J., Redman, L. M., Veldhuis, P. P., Sazonova, A., Labrie, F., Holm, G., Johannsson, G., & Stener‐Victorin, E. (2013) · American Journal of Physiology-Endocrinology and Metabolism · doi:10.1152/ajpendo.00039.2013 · Cited by 131 · see citing works
Shores, M. M., Biggs, M. L., Arnold, A. M., Smith, N. L., Longstreth, W. T., Kizer, J. R., Hirsch, C. H., Cappola, A. R., & Matsumoto, A. M. (2014) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2013-3576 · Cited by 130 · see citing works
Jensen, M. B., Lawaetz, J. G., Andersson, A., Petersen, J. H., Nordkap, L., Bang, A. K., Ekbom, P., Joensen, U. N., Prætorius, L., Lundstrøm, P., et al. (2016) · Human Reproduction · doi:10.1093/humrep/dew152 · Cited by 122 · see citing works
Pöllänen, E., Sipilä, S., Alén, M., Ronkainen, P. H. A., Ankarberg‐Lindgren, C., Puolakka, J. O., Suominen, H., Hämäläinen, E. K., Turpeinen, U., Konttinen, Y. T., et al. (2011) · Aging Cell · doi:10.1111/j.1474-9726.2011.00701.x · Cited by 121 · see citing works
Auyeung, T. W., Lee, J. S. W., Kwok, T. C. Y., Leung, J. C. S., Ohlsson, C., Vandenput, L., Leung, P., & Woo, J. (2011) · European Journal of Endocrinology · doi:10.1530/eje-10-0952 · Cited by 109 · see citing works
Lakshman, K. M., Kaplan, B., Travison, T. G., Basaria, S. S., Knapp, P. E., Singh, A. B., LaValley, M. P., Mazer, N. A., & Bhasin, S. (2010) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2010-0102 · Cited by 103 · see citing works
Self-citationNarinx, N., David, K., Walravens, J., Vermeersch, P., Claessens, F., Fiers, T., Lapauw, B., Antonio, L., & Vanderschueren, D. (2022) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-022-04562-1 · Cited by 96 · see citing works
Trost, L. W., & Mulhall, J. P. (2016) · The Journal of Sexual Medicine · doi:10.1016/j.jsxm.2016.04.068 · Cited by 98 · see citing works
Diagnosis and treatment of hypogonadism in men
Bhasin, S., & Basaria, S. S. (2011) · Best Practice & Research Clinical Endocrinology & Metabolism · doi:10.1016/j.beem.2010.12.002 · Cited by 89 · see citing works
Murri, M., Insenser, M. R., Fernández‐Durán, E., San‐Millán, J. L., Luque‐Ramírez, M., & Escobar-Morreale, H. F. (2018) · Metabolism · doi:10.1016/j.metabol.2018.01.011 · Cited by 88 · see citing works
Honour, J. W. (2017) · Annals of Clinical Biochemistry International Journal of Laboratory Medicine · doi:10.1177/0004563217739930 · Cited by 84 · see citing works
A multi-step, dynamic allosteric model of testosterone's binding to sex hormone binding globulin
Zakharov, M. N., Bhasin, S., Travison, T. G., Xue, R., Ulloor, J., Vasan, R. S., Carter, E., Wu, F., & Jasuja, R. (2015) · Molecular and Cellular Endocrinology · doi:10.1016/j.mce.2014.09.001 · Cited by 81 · see citing works
Hanson, E. D., Sheaff, A. K., Sood, S., Ma, L., Francis, J. D., Goldberg, A. P., & Hurley, B. F. (2012) · The Journals of Gerontology Series A · doi:10.1093/gerona/gls206 · Cited by 78 · see citing works
Free Testosterone: Pumping up the Tires or Ending the Free Ride?
Handelsman, D. J. (2017) · Endocrine Reviews · doi:10.1210/er.2017-00171 · Cited by 78 · see citing works
Prenatal and adult androgen activities in alcohol dependence
Lenz, B., Mühle, C., Braun, B., Weinland, C., Bouna-Pyrrou, P., Behrens, J., Kubis, S., Mikolaiczik, K., Muschler, M.-R., Saigali, S., et al. (2017) · Acta Psychiatrica Scandinavica · doi:10.1111/acps.12725 · Cited by 74 · see citing works
Luque‐Ramírez, M., Martínez-García, M. Á., Montes‐Nieto, R., Fernández‐Durán, E., Insenser, M. R., Alpañés, M., & Escobar-Morreale, H. F. (2013) · Human Reproduction · doi:10.1093/humrep/det097 · Cited by 73 · see citing works
Duong, P., Tenkorang, M. A. A., Trieu, J., McCuiston, C., Rybalchenko, N., & Cunningham, R. L. (2020) · Biology of Sex Differences · doi:10.1186/s13293-020-0283-1 · Cited by 72 · see citing works
Basaria, S. S. (2013) · Endocrinology and Metabolism Clinics of North America · doi:10.1016/j.ecl.2013.02.012 · Cited by 74 · see citing works
Androgens, health and sexuality in women and men
Wylie, K. R., REES, M. C. P., Hackett, G. I., Anderson, R. A., Bouloux, P.-M. G., Cust, M., Goldmeier, D., Kell, P. D., TERRY, T. R., TRINICK, T. R., et al. (2010) · Maturitas · doi:10.1016/j.maturitas.2010.07.011 · Cited by 72 · see citing works
Charlier, T. D., Underhill, C., Hammond, G. L., & Soma, K. K. (2009) · Hormones and Behavior · doi:10.1016/j.yhbeh.2009.06.012 · Cited by 71 · see citing works
Kallak, T. K., Hellgren, C., Skalkidou, A., Sandelin-Francke, L., Ubhayasekhera, K., Bergquist, J., Axelsson, O., Comasco, E., Campbell, R. E., & Sundström Poromaa, I. (2017) · European Journal of Endocrinology · doi:10.1530/eje-17-0207 · Cited by 70 · see citing works
Lawson, L. P., Keelan, J. A., Jamnadass, E. S. L., Maybery, M. T., Hickey, M., & Whitehouse, A. (2015) · Early Human Development · doi:10.1016/j.earlhumdev.2014.12.011 · Cited by 70 · see citing works
Shores, M. M., Arnold, A. M., Biggs, M. L., Longstreth, W. T., Smith, N. L., Kizer, J. R., Cappola, A. R., Hirsch, C. H., Marck, B. T., & Matsumoto, A. M. (2014) · Clinical Endocrinology · doi:10.1111/cen.12452 · Cited by 71 · see citing works
Fiers, T., Wu, F., Moghetti, P., Vanderschueren, D., Lapauw, B., & Kaufman, J.-M. (2018) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2017-02360 · Cited by 70 · see citing works
Hackbarth, J. S., Hoyne, J. B., Grebe, S. K. G., & Singh, R. (2010) · Steroids · doi:10.1016/j.steroids.2010.08.008 · Cited by 62 · see citing works
Traustadóttir, T., Harman, S. M., Tsitouras, P. D., Pencina, K. M., Li, Z., Travison, T. G., Eder, R. V., Miciek, R., McKinnon, J., Woodbury, E. A., et al. (2018) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2017-01902 · Cited by 59 · see citing works
Basaria, S. S., Davda, M. N., Travison, T. G., Ulloor, J., Singh, R., & Bhasin, S. (2012) · The Journals of Gerontology Series A · doi:10.1093/gerona/gls138 · Cited by 56 · see citing works
Relation of Visceral Adiposity to Circulating Natriuretic Peptides in Ambulatory Individuals
Cheng, S. C., Fox, C. S., Larson, M. G., Massaro, J. M., McCabe, E. L., Khan, A. M., Levy, D. A., Hoffmann, U., O’Donnell, C. J., Miller, K. K., et al. (2011) · The American Journal of Cardiology · doi:10.1016/j.amjcard.2011.05.033 · Cited by 56 · see citing works
Do low testosterone levels contribute to ill-health during male ageing?
Yeap, B. B., de Araújo, A. B., & Wittert, G. (2012) · Critical Reviews in Clinical Laboratory Sciences · doi:10.3109/10408363.2012.725461 · Cited by 53 · see citing works
Androgen Physiology, Pharmacology, and Abuse
Handelsman, D. J. (2015) · Elsevier eBooks · doi:10.1016/b978-0-323-18907-1.00138-4 · Cited by 52 · see citing works
Lindheim, L., Bashir, M., Münzker, J., Trummer, C., Zachhuber, V., Pieber, T. R., Gorkiewicz, G., & Obermayer-Pietsch, B. M. (2016) · Frontiers in Microbiology · doi:10.3389/fmicb.2016.01270 · Cited by 52 · see citing works
Metabolic Syndrome, Androgens, and Hypertension
Moulana, M., Lima, R., & Reckelhoff, J. F. (2011) · Current Hypertension Reports · doi:10.1007/s11906-011-0184-0 · Cited by 51 · see citing works
High Serum SHBG Predicts Incident Vertebral Fractures in Elderly Men
Vandenput, L., Mellström, D., Kindmark, A., Johansson, H., Lorentzon, M., Leung, J. C. S., Redlund-Johnell, I., Rosengren, B. E., Karlsson, M. K., Wáng, Y. X. J., et al. (2015) · Journal of Bone and Mineral Research · doi:10.1002/jbmr.2718 · Cited by 49 · see citing works
Testosterone imbalance may link depression and increased body weight in premenopausal women
Stanikova, D., Zsido, R. G., Luck, T., Pabst, A., Enzenbach, C., Bae, Y. J., Thiery, J., Ceglarek, U., Engel, C., Wirkner, K., et al. (2019) · Translational Psychiatry · doi:10.1038/s41398-019-0487-5 · Cited by 47 · see citing works
Preclinical challenges in steroid analysis of human samples
Ceglarek, U., Werner, M., Kortz, L., Körner, A., Kieß, W., Thiery, J., & Kratzsch, J. (2010) · The Journal of Steroid Biochemistry and Molecular Biology · doi:10.1016/j.jsbmb.2010.03.039 · Cited by 47 · see citing works
Soy Isoflavones for Reducing Bone Loss Study
Alekel, D. L., Genschel, U., Koehler, K. J., Hofmann, H., Loan, M. D. V., Beer, B. S., Hanson, L. N., Peterson, C. T., & Kurzer, M. S. (2014) · Menopause The Journal of The North American Menopause Society · doi:10.1097/gme.0000000000000280 · Cited by 47 · see citing works
Gynaecomastia in 786 adult men: clinical and biochemical findings
Mieritz, M. G., Christiansen, P., Jensen, M. B., Joensen, U. N., Nordkap, L., Olesen, I. A., Bang, A. K., Juul, A., & Jørgensen, N. (2017) · European Journal of Endocrinology · doi:10.1530/eje-16-0643 · Cited by 46 · see citing works
Travison, T. G., Zhuang, W. V., Lunetta, K. L., Karasik, D., Bhasin, S., Kiel, D. P., Coviello, A. D., & Murabito, J. M. (2014) · Clinical Endocrinology · doi:10.1111/cen.12260 · Cited by 41 · see citing works
Free testosterone and free dihydrotestosterone throughout the life span of men
Stárka, L., Pospíšilová, H., & Hill, M. (2009) · The Journal of Steroid Biochemistry and Molecular Biology · doi:10.1016/j.jsbmb.2009.05.008 · Cited by 41 · see citing works
Huang, G., Pencina, K. M., Li, Z., Basaria, S., Bhasin, S., Travison, T. G., Storer, T. W., Harman, S. M., & Tsitouras, P. (2018) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2017-02545 · Cited by 40 · see citing works
Bone Density, Structure and Strength, and Their Determinants in Aging Sprint Athletes
Korhonen, M. T., Heinonen, A. O., SIEKKINEN, J., Isolehto, J., Alén, M., Kiviranta, I., & Suominen, H. (2012) · Medicine & Science in Sports & Exercise · doi:10.1249/mss.0b013e318267c954 · Cited by 41 · see citing works
Low Progesterone and Low Estradiol Levels Associate With Abdominal Aortic Aneurysms in Men
Ohlsson, C., Langenskiöld, M., Smidfelt, K., POUTANEN, M. H., Ryberg, H., Norlén, A., Nordanstig, J., Bergström, G. M. L., & Tivesten, Å. (2021) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/clinem/dgab867 · Cited by 41 · see citing works
Joyce, K. E., Biggs, M. L., Djoussé, L., Ix, J. H., Kizer, J. R., Siscovick, D. S., Shores, M. M., Matsumoto, A. M., & Mukamal, K. J. (2016) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2016-2623 · Cited by 40 · see citing works
Ramachandran, S., Hackett, G. I., & Strange, R. C. (2019) · Sexual Medicine Reviews · doi:10.1016/j.sxmr.2019.06.006 · Cited by 40 · see citing works
Sharma, A. N., Aoun, P., Wigham, J. R., Weist, S. M., & Veldhuis, J. D. (2014) · American Journal of Physiology-Regulatory, Integrative and Comparative Physiology · doi:10.1152/ajpregu.00551.2013 · Cited by 39 · see citing works
Free estradiol and sex hormone-binding globulin
Rosner, W. (2014) · Steroids · doi:10.1016/j.steroids.2014.08.005 · Cited by 38 · see citing works
Ray, J. A., Kushnir, M. M., Bunker, A. M., Rockwood, A. L., & Meikle, A. W. (2012) · Clinica Chimica Acta · doi:10.1016/j.cca.2012.02.028 · Cited by 38 · see citing works
Smith, A. J., Phipps, W. R., Arikawa, A. Y., O’Dougherty, M., Kaufman, B. C., Thomas, W. T. B., Schmitz, K. H., & Kurzer, M. S. (2011) · Cancer Epidemiology Biomarkers & Prevention · doi:10.1158/1055-9965.epi-10-1219 · Cited by 38 · see citing works
Haring, R., Travison, T. G., Bhasin, S., Vasan, R. S., Wallaschofski, H., Davda, M. N., Coviello, A. D., & Murabito, J. M. (2011) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2011-1068 · Cited by 37 · see citing works
Zheng, X., Bi, C., Brooks, M., & Hage, D. S. (2015) · Analytical Chemistry · doi:10.1021/acs.analchem.5b03007 · Cited by 36 · see citing works
Jamnadass, E. S. L., Keelan, J. A., Lawson, L. P., Hickey, M., Maybery, M. T., & Whitehouse, A. (2015) · Journal of Neurodevelopmental Disorders · doi:10.1186/s11689-015-9114-9 · Cited by 35 · see citing works
Storer, T. W., Bhasin, S., Travison, T. G., Pencina, K. M., Miciek, R., McKinnon, J., & Basaria, S. S. (2016) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2015-4333 · Cited by 35 · see citing works
Circulating testosterone and SHBG concentrations are heritable in women: the Framingham Heart Study
Coviello, A. D., Zhuang, W. V., Lunetta, K. L., Bhasin, S., Ulloor, J., Zhang, A., Karasik, D., Kiel, D. P., Vasan, R. S., & Murabito, J. M. (2011) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2011-0050 · Cited by 33 · see citing works
Serum Estradiol Levels Are Inversely Associated With Cortical Porosity in Older Men
Vandenput, L., Lorentzon, M., Sundh, D., Nilsson, M., Karlsson, M. K., Mellström, D., & Ohlsson, C. (2014) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2014-1319 · Cited by 33 · see citing works
Jasuja, G. K., Travison, T. G., Davda, M. N., Rose, A. J., Zhang, A., Kushnir, M. M., Rockwood, A. L., Meikle, W. A., Coviello, A. D., D’Agostino, R. B., et al. (2013) · Diabetes Care · doi:10.2337/dc12-2477 · Cited by 32 · see citing works
Samavat, H., Wu, A. H., Ursin, G., Torkelson, C. J., Wang, R., Yu, M. C., Yee, D., Kurzer, M. S., & Yuan, J. (2019) · Journal of Nutrition · doi:10.1093/jn/nxy316 · Cited by 33 · see citing works
Kong, S. H., Kim, J. H., Lee, J. H., Hong, A. R., Shin, C. S., & Cho, N. H. (2019) · Calcified Tissue International · doi:10.1007/s00223-019-00566-5 · Cited by 30 · see citing works
Tapper, J., Arver, S., Pencina, K. M., Martling, A., Blomqvist, L., Buchli, C., Li, Z., Gagliano‐Jucá, T., Travison, T. G., Huang, G. T.-W., et al. (2017) · Andrology · doi:10.1111/andr.12454 · Cited by 29 · see citing works
Escobar-Morreale, H. F., Martínez-García, M. Á., Montes‐Nieto, R., Fernández‐Durán, E., Temprano‐Carazo, S., & Luque‐Ramírez, M. (2016) · Clinical Nutrition · doi:10.1016/j.clnu.2016.01.015 · Cited by 29 · see citing works
Berkseth, K. E., Rubinow, K. B., Melhorn, S. J., Webb, M. F., Leon, M. R. B. D., Marck, B. T., Matsumoto, A. M., Amory, J. K., Page, S. T., & Schur, E. A. (2018) · Obesity · doi:10.1002/oby.22324 · Cited by 29 · see citing works
Sex hormones are negatively associated with vertebral bone marrow fat
Mistry, S., Woods, G. N., Sigurdsson, S. O., Ewing, S. K., Hue, T. F., Eiríksdóttir, G., Xu, K., Hilton, J. F., Kado, D. M., Gudnason, V. G., et al. (2017) · Bone · doi:10.1016/j.bone.2017.12.009 · Cited by 28 · see citing works
Travison, T. G., O’Donnell, C. J., Bhasin, S., Massaro, J. M., Hoffmann, U., Vasan, R. S., D’Agostino, R. B., & Basaria, S. S. (2016) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2015-4299 · Cited by 27 · see citing works
Gagliano‐Jucá, T., İçli, T. B., Pencina, K. M., Li, Z., Tapper, J., Huang, G. T.-W., Travison, T. G., Tsitouras, P. D., Harman, S. M., Storer, T. W., et al. (2016) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2016-3669 · Cited by 26 · see citing works
Estrogen receptor 1 gene variants and estradiol activities in alcohol dependence
Mühle, C., Barry, B. K., Weinland, C., Kornhuber, J., & Lenz, B. (2019) · Progress in Neuro-Psychopharmacology and Biological Psychiatry · doi:10.1016/j.pnpbp.2019.01.008 · Cited by 27 · see citing works
Androgens, health and sexuality in women and men
Wylie, K. R., REES, M. C. P., Hackett, G. I., Anderson, R. A., Bouloux, P.-M. G., Cust, M., Goldmeier, D., Kell, P. D., TERRY, T. R., TRINICK, T. R., et al. (2010) · Human Fertility · doi:10.3109/14647273.2010.530966 · Cited by 26 · see citing works
Laboratory testing for secondary osteoporosis evaluation
Adler, R. A. (2012) · Clinical Biochemistry · doi:10.1016/j.clinbiochem.2012.01.024 · Cited by 26 · see citing works
Panton, K. K., Mikkelsen, G., Irgens, W. Ø., Hovde, A. K., Killingmo, M. W., Øien, M. A., Thorsby, P. M., & Åsberg, A. (2019) · Scandinavian Journal of Clinical and Laboratory Investigation · doi:10.1080/00365513.2019.1622031 · Cited by 25 · see citing works
Allosterically Coupled Multisite Binding of Testosterone to Human Serum Albumin
Jayaraj, A., Schwanz, H. A., Spencer, D. J., Bhasin, S., Hamilton, J. A., Jayaram, B., Goldman, A. L., Krishna, M., Krishnan, M., Shah, A., et al. (2021) · Endocrinology · doi:10.1210/endocr/bqaa199 · Cited by 28 · see citing works
Jasuja, R., Pencina, K. M., Spencer, D. J., Peng, L., Privat, F., Dhillo, W. S., Jayasena, C. N., Hayes, F. J., Yeap, B. B., Matsumoto, A. M., et al. (2022) · Andrology · doi:10.1111/andr.13310 · Cited by 25 · see citing works
Serum androgens and risk of atrial fibrillation in older men: The Cardiovascular Health Study
Rosenberg, M. A., Shores, M. M., Matsumoto, A. M., Bůžková, P., Lange, L. A., Kronmal, R. A., Heckbert, S. R., & Mukamal, K. J. (2018) · Clinical Cardiology · doi:10.1002/clc.22965 · Cited by 25 · see citing works
Jasuja, R., Spencer, D. J., Jayaraj, A., Peng, L., Krishna, M., Lawney, B. P., Patel, P., Jayaram, B., Thayer, K. M., Beveridge, D. L., et al. (2021) · iScience · doi:10.1016/j.isci.2021.102414 · Cited by 24 · see citing works
Hsu, B., Cumming, R. G., Blyth, F., Naganathan, V., Waite, L. M., Couteur, D. G. L., Seibel, M. J., & Handelsman, D. J. (2017) · The Journals of Gerontology Series A · doi:10.1093/gerona/glx170 · Cited by 24 · see citing works
Sex differences in serum steroid hormone levels during embryonic development in hen eggs
Wang, Y., Jin, G., Ma, M., & Xiang, X. (2019) · Poultry Science · doi:10.3382/ps/pez270 · Cited by 22 · see citing works
Balogun, K. A., Lenis, M. S. G., Papp, E., Loutfy, M. R., Yudin, M. H., MacGillivray, J., Walmsley, S. L., Silverman, M. E., & Serghides, L. (2017) · Clinical Infectious Diseases · doi:10.1093/cid/cix761 · Cited by 22 · see citing works
New Biomarkers to Evaluate Hyperandrogenemic Women and Hypogonadal Men
Karakas, S. E., & Surampudi, P. N. (2018) · Advances in clinical chemistry · doi:10.1016/bs.acc.2018.06.001 · Cited by 22 · see citing works
Holt, R., Yahyavi, S. K., Kooij, I., Poulsen, N. N., Juul, A., Jørgensen, N., & Blomberg Jensen, M. (2024) · Andrology · doi:10.1111/andr.13505 · Cited by 21 · see citing works
Sex steroids and cardiovascular disease
Yeap, B. B. (2014) · Asian Journal of Andrology · doi:10.4103/1008-682x.122357 · Cited by 20 · see citing works
A Perspective on the Evolving Landscape in Male Reproductive Medicine
Bhasin, S. (2016) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2015-3843 · Cited by 19 · see citing works
- Authors
- Mazer, N. A.
- Affiliations
- Boston University (US)
- Corresponding author
- Mazer, Norman A.
- ORCID
- Mazer, Norman A.
- Venue
- Steroids
- Publisher
- Elsevier BV
- Published
- 2009-06
- Volume
- 74
- Issue
- 6
- Pages
- 512-519
- ISSN
- 0039-128X (ISSN-L)
- OpenAlex
- W2003710746
- Cited by
- 189
- References
- 53
- Citations by year
- 2026: 7 · 2025: 11 · 2024: 8 · 2023: 8 · 2022: 9 · 2021: 11 · 2020: 5 · 2019: 13 · 2018: 13 · 2017: 17 · 2016: 11 · 2015: 11 · 2014: 11 · 2013: 13 · 2012: 11
- FWCI
- 9.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Steroids (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health (5p30ag031679-15)
- National Institute on Aging (U01AG014369, R01AG031206, 1 P30 AG031679, 5UO1AG14369)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
- Keywords
- sex hormone-binding globulin, albumin, corticosteroid-binding globulin, testosterone, dihydrotestosterone, estradiol, estrone, cortisol, competitive binding, pregnancy, oophorectomy, conjugated equine estrogens, binding constant
- MeSH terms
- Adult, Aged, Algorithms, Estradiol, Estrone, Female, Humans, Hydrocortisone, Male, Mathematical Computing, Ovariectomy, Pregnancy, Pregnancy Trimester, Third, Reference Values, Dihydrotestosterone, Testosterone, Reproducibility of Results
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review