Assertion: steroid | /r/CapableOf | circulate in blood
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Source sentences:
text: They circulate in blood free or bound (95%) to plasma carrier proteins.56,57,58 Sex hormone-binding globulin (SHBG), also known as testosterone-estradiol-binding globulin (TeBG), and androgen-binding protein (ABP) are encoded by the same gene.59 ABP is produced by the Sertoli cells of the testis, and SHBG is produced by the liver and is present in the circulatory system.58 SHBG binds most gonadal steroids, and corticosteroid-binding globulin (CBG or transcortin) binds glucocorticoids and progesterone with different affinities.