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Department of Medicine, University of Padova, Padova, Italy
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indirectly through the estrogen receptor (ER) after the transformation of testosterone to estradiol by the aromatase enzyme ( 32 , 37 ). In detail, testosterone modulates bone metabolism throughout life in males ( 38 ). The increase in the production of
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Diagnostic Clinic, University Hospital of North Norway, Tromso, Norway
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Division of Internal Medicine, University Hospital of North Norway, Tromso, Norway
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hormonal contraceptives (CHC), which includes an estrogenic component, has been consistently reported ( 3 , 11 ). Several tissues, including the parathyroid gland, can utilize DBP-bound 25(OH)D, possibly modifying the significance of free 25(OH)D levels
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Characteristics of included studies. Author Publication Design Country Interventions (dose) Controls (dose) Patients, no. Duration of treatment (years) Age at starting GH (year) Age at starting estrogen (year) Outcome measures
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that estrogen is strongly related to osteoporosis, and estrogen deficiency can lead to increased apoptosis on osteoblast, bone loss, and osteoporosis ( 7 , 31 ). We speculated that it might be related to changes in sex hormone levels after menopause
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major driver of prostate cancer growth and progression, and thus androgen-deprivation therapy is the standard of care for advanced disease. In addition to androgens, the prostate is also an estrogen-regulated organ and there is a body of evidence that
Laboratory for Anthropology and Skeletal Biology, Institute of Anatomy, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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osteocyte death also occurs due to hormonal reasons, such as estrogen deficiency or corticosteroid excess ( 38 , 39 , 45 ). Moreover, osteocyte death may be caused by mechanical factors ( 36 , 46 ), but the relationship between mechanical loading and
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adjuvant therapies. Recent prospective study demonstrated that estrogen replacement therapy reduced osteoporotic fractures in women with surgical menopause (28) . Therefore, estrogen replacement therapy may prevent some degree of such bone mineral loss
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Introduction It has been shown that the levels of different adipokines, such as leptin, adiponectin, resistin, vaspin, omentin-1 and RBP4 are higher in women than those in men ( 1 , 2 , 3 , 4 , 5 , 6 ), and that estrogens stimulate
Department of Epidemiology St. Luke’s International University Graduate School of Public Health, Tokyo, Japan
Fujita Health University Toyoake, Japan
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Department of Epidemiology St. Luke’s International University Graduate School of Public Health, Tokyo, Japan
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malignancies. Previous studies have reported that diabetic patients have higher levels of estrogens than nondiabetic patients due to high levels of insulin and insulin resistance ( 29 , 30 ). This elevated estrogens may cause specific cancers, such as uterine
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Introduction Diethylstilbestrol (DES) ( Fig. 1 ) is a potent synthetic estrogen ( 1 ), as its relative binding affinity to rat estrogen receptors being three-fold higher than that of the natural ligand 17β-estradiol ( 2 ). DES was once