human
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: BACKGROUND The efficacy and safety of testosterone treatment for hypoactive sexual desire disorder in postmenopausal women not receiving estrogen therapy  are unknown . METHODS We conducted a double-blind , placebo-controlled , 52-week trial in which 814 women with hypoactive sexual desire disorder were r and omly assigned to receive a patch delivering 150 or 300 microg of testosterone per day or placebo .  Efficacy was measured to week 24 ; safety was evaluated over a period of 52 weeks , with a subgroup of participants followed for an additional year . The primary end point was the change from baseline to week 24 in the 4-week frequency of satisfying sexual episodes . RESULTS At 24 weeks , the increase in the 4-week frequency of satisfying sexual episodes was significantly greater in the group receiving 300 microg of testosterone per day than in the placebo group ( an increase of 2.1 episodes vs. 0.7 , P<0.001 ) but not in the group receiving 150 microg per day ( 1.2 episodes , P=0.11 ) . As compared with placebo , both doses of testosterone were associated with significant increases in desire ( 300 microg per day , P<0.001 ; 150 microg per day , P=0.04 ) and decreases in distress ( 300 microg per day , P<0.001 ; 150 microg per day , P=0.04 ) . The rate of and rogenic adverse events - primarily unwanted hair growth - was higher in the group receiving 300 microg of testosterone per day than in the placebo group ( 30.0 % vs. 23.1 % ) . Breast cancer was diagnosed in four women who received testosterone ( as compared with none who received placebo ) ; one of the four received the diagnosis in the first 4 months of the study period , and one , in retrospect , had symptoms before undergoing r and omization . CONCLUSIONS In postmenopausal women not receiving estrogen therapy  , treatment with a patch delivering 300 microg of testosterone per day result ed in a modest but meaningful improvement in sexual function . The long-term effects of testosterone , including effects on the breast , remain uncertain . ( Clinical Trials.gov number , NCT00131495 . Objective To evaluate the efficacy and safety of a transdermal testosterone patch ( TTP , 300 μg/day ) in naturally menopausal women with hypoactive sexual desire disorder ( HSDD ) . Methods A total of 272 naturally menopausal women , predominantly not using hormone therapy , were r and omized in this 6-month , placebo-controlled , double-blind , multicenter study to receive twice weekly either TTP or an identical placebo . Efficacy endpoints measured were the 4-week frequency of satisfying sexual episodes ( SSE ) using the Sexual Activity Log , the sexual desire domain of the Profile of Female Sexual Function and distress by the Personal Distress Scale . Safety was assessed by adverse events , laboratory parameters and hormone levels . Results The TTP group demonstrated significant improvements in SSE ( p = 0.0089 ) as well as in sexual desire ( p = 0.0007 ) and reduced personal distress ( p = 0.0024 ) versus placebo at 6 months ( intent-to-treat analysis , n = 247 ) . The results were significant for all three endpoints in the subgroup ( n = 199 ) not using hormone therapy . Similar numbers of women treated with placebo and TTP discontinued ( n = 39 , 27.5 % vs. n = 26 , 20 % ) , reported adverse events ( including application site reactions ) ( n = 101 , 71.1 % vs. n = 81 , 62.3 % ) and withdrew due to adverse events ( n = 20 , 14.1 % vs. n = 9 , 6.9 % ) . No clinical ly relevant changes were noted in laboratory parameters . Serum free and total testosterone levels increased from baseline in the TTP group ( geometric means 5.65 pg/ml and 67.8 ng/dl , respectively , at week 24 ) within the physiological range ; no changes were seen in estradiol and sex hormone binding globulin levels . Conclusions TTP was effective in treating HSDD and improving sexual function in this study of naturally menopausal women with and without concurrent hormone therapy Objectives : To investigate the cognitive effects of high-dose oral estrogen alone or in combination with oral methyltestosterone in postmenopausal women . Methods : Participants were tested with a r and omized , double-blind design on the Identical Pictures , Cube Comparisons , Building Memory and Shape Memory tasks before and after 4 months of hormone treatment . Results : Women receiving estrogen and methyltestosterone maintained a steady level of performance on the Building Memory task , whereas those receiving estrogen alone showed a decrease in performance . Conclusions : These results indicate that the addition of testosterone to high-dose estrogen replacement exerts a protective effect on memory performance in postmenopausal women CONTEXT Hypoactive sexual desire disorder ( HSDD ) is one of the most common sexual problems reported by women , but few studies have been conducted to evaluate treatments for this condition . OBJECTIVE The objective of this study was to evaluate the efficacy and safety of a testosterone patch in surgically menopausal women with HSDD . DESIGN The design was a r and omized , double-blind , parallel-group , placebo-controlled , 24-wk study ( the Intimate SM 1 study ) . SETTING The study was performed at private or institutional practice s. PATIENTS The subjects studied were women , aged 26 - 70 yr , with HSDD after bilateral salpingo-oophorectomy who were receiving concomitant estrogen therapy . Placebo ( n = 279 ) or testosterone 300 microg/d ( n = 283 ) was administered . There were 19 patients who withdrew due to adverse events in the placebo group and 24 in the 300 mug/d testosterone group . INTERVENTION Testosterone ( 300 microg/d ) or placebo patches were applied twice weekly . MAIN OUTCOME MEASURE(S ) The primary end point was the change in the frequency of total satisfying sexual activity at 24 wk . Secondary end points included other sexual functioning end points and safety assessment s. RESULTS At 24 wk , there was an increase from baseline in the frequency of total satisfying sexual activity of 2.10 episodes/4 wk in the testosterone group , which was significantly greater than the change of 0.98 episodes/4 wk in the placebo group ( P = 0.0003 ) . The testosterone group also experienced statistically significant improvements in sexual desire and a decrease in distress . The overall safety profile was similar in both treatment groups . CONCLUSION In the Intimate SM 1 study , the testosterone patch improved sexual function and decreased distress in surgically menopausal women with HSDD and was well tolerated in this trial Objective To compare an oral estrogen- and rogen combination with estrogens alone on bone , menopausal symptoms , and lipoprotein profiles in postmenopausal women . Methods Surgically menopausal women received oral esterified estrogens ( 1.25 mg ) , or esterified estrogens ( 1.25 mg ) and methyltestosterone ( 2.5 mg ) daily , for 2 years . Bone mineral density of the lumbar spine and hip , menopausal symptoms , lipoprotein profiles , and biochemical and hematologic indices were evaluated . Results Sixty-six patients were enrolled in the study . Both treatment regimens prevented bone loss at the spine and hip ; combined estrogen- and rogen therapy was associated with a significant increase in spinal bone mineral density compared with baseline ( n = 24 ; mean score ± st and ard error 3.4 ± 1.2 % , P < .01 ) . In the estrogen group , high-density lipoprotein ( HDL ) cholesterol increased significantly and low-density lipoprotein cholesterol decreased significantly . Cholesterol , HDL cholesterol , and triglycerides decreased significantly in the estrogen- and rogen  group . Menopausal symptoms of somatic origin ( hot flashes , vaginal dryness , and insomnia ) were improved significantly by both treatments . Neither adverse hepatic effects nor significant safety or tolerance problems were reported in either group . Conclusion Oral estrogen- and rogen  increased vertebral bone mineral density compared with pre-treatment values and relieved somatic symptoms . Safety indices , including lipoprotein levels , indicated that the combination was well tolerated over the 2 years of treatment CONTEXT Changes in and rogen levels across the adult female life span and the effects of natural menopause and oophorectomy have not been clearly established . OBJECTIVE The objective of this study was to document the effects of age on and rogen levels in healthy women and to explore the effects of natural and surgical menopause . DESIGN , SETTING , AND PARTICIPANTS A cross-sectional study was conducted of 1423 non-healthcare-seeking women , aged 18 - 75 yr , r and omly recruited from the community over 15 months . MAIN OUTCOME MEASURES Serum levels by age of total testosterone ( T ) , calculated free T , dehydroepi and rosterone sulfate , and and rostenedione in a reference group of women free of confounding factors . Women in the reference group had no usage of exogenous steroid therapy ; no history of tubal ligation , hysterectomy , or bilateral oophorectomy ; and no hyperprolactinemia or polycystic ovarian syndrome . The effects of natural and surgical menopause on sex steroid levels were also examined . RESULTS In the reference population ( n = 595 ) , total T , calculated free T , dehydroepi and rosterone sulfate , and and rostenedione declined steeply with age ( P < 0.001 ) , with the decline of each being greater in the earlier than the later decades . Examination of serum and rogen levels by year in women aged 45 - 54 yr showed no independent effect of menopausal status on and rogen levels . In women aged 55 yr or older , those who reported bilateral oophorectomy and were not on exogenous steroids had significantly lower total T and free T levels than women 55 yr or older in the reference group . CONCLUSIONS We report that serum and rogen levels decline steeply in the early reproductive years and do not vary because a consequence of natural menopause and that the postmenopausal ovary appears to be an ongoing site of testosterone production . These significant variations in and rogens with age must be taken into account when normal ranges are reported and in studies of the role of and rogens in women OBJECTIVE In some women , a decline in sexual interest accompanies a relative and rogen insufficiency after menopause . We sought to characterize the hormonal effects of the combination of oral esterified estrogens and methyltestosterone and to investigate whether this regimen improves hypoactive sexual desire . DESIGN Double-blind r and omized trial . SETTING Healthy volunteers in a multicenter research environment . PATIENT(S ) Postmenopausal women taking estrogen therapy who were experiencing hypoactive sexual desire . INTERVENTION(S ) 4 months of treatment with 0.625 mg of esterified estrogens ( n = 111 ) or the combination of 0.625 mg of esterified estrogens and 1.25 mg of methyltestosterone ( n = 107 ) . MAIN OUTCOME MEASURES Baseline and end-of- study measurements of total and bioavailable testosterone and sex hormone-binding globulin ( SHBG ) , and mean change in level of sexual interest or desire as rated on the Sexual Interest Question naire . RESULT ( S ) Treatment with the combination of esterified estrogens and methyltestosterone significantly increased the concentration of bioavailable testosterone and suppressed SHBG . Scores measuring sexual interest or desire and frequency of desire increased from baseline with combination treatment and were significantly greater than those achieved with esterified estrogens alone . Treatment with the combination was well tolerated . CONCLUSION ( S ) Increased circulating levels of unbound testosterone and suppression of SHBG provide a plausible hormonal explanation for the significantly improved sexual functioning in women receiving the combination of esterified estrogen and methyltestosterone Objective : The extent to which aromatization of testosterone ( T ) to estradiol is required for the observed effects of testosterone therapy on sexual function and well-being are not known . Therefore , the authors investigated the effects of aromatase enzyme inhibition on sexual function , well-being , and mood in estrogen- and T-replete postmenopausal women in a double-blind , r and omized , placebo-controlled study . Design : Postmenopausal women using transdermal estrogen therapy for at least 8 weeks and reporting low sexual satisfaction ( score < 42 for the Sabbatsberg Sexual Self-rating Scale [ SSS ] ) with a total T value of less than 1.2 nmol/L were treated with 400 μL of a 0.5 % T gel ( total dose 2 mg ) and were r and omly assigned to receive treatment with either 2.5 mg/day of letrozole or an identical placebo tablet . Women were assessed at baseline ( week −2 ) and at 0 , 4 , 8 , and 16 weeks . Sexual function was assessed with the SSS , well-being was assessed with the Psychological General Well-being Index , and mood was ass 
    Output:
    
agent
Some studies suggest that testosterone therapy has additional effects , which include increased bone mineral density and decreased serum high-density lipoprotein ( HDL ) cholesterol .
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: BACKGROUND The efficacy and safety of testosterone treatment for hypoactive sexual desire disorder in postmenopausal women not receiving estrogen therapy  are unknown . METHODS We conducted a double-blind , placebo-controlled , 52-week trial in which 814 women with hypoactive sexual desire disorder were r and omly assigned to receive a patch delivering 150 or 300 microg of testosterone per day or placebo .  Efficacy was measured to week 24 ; safety was evaluated over a period of 52 weeks , with a subgroup of participants followed for an additional year . The primary end point was the change from baseline to week 24 in the 4-week frequency of satisfying sexual episodes . RESULTS At 24 weeks , the increase in the 4-week frequency of satisfying sexual episodes was significantly greater in the group receiving 300 microg of testosterone per day than in the placebo group ( an increase of 2.1 episodes vs. 0.7 , P<0.001 ) but not in the group receiving 150 microg per day ( 1.2 episodes , P=0.11 ) . As compared with placebo , both doses of testosterone were associated with significant increases in desire ( 300 microg per day , P<0.001 ; 150 microg per day , P=0.04 ) and decreases in distress ( 300 microg per day , P<0.001 ; 150 microg per day , P=0.04 ) . The rate of and rogenic adverse events - primarily unwanted hair growth - was higher in the group receiving 300 microg of testosterone per day than in the placebo group ( 30.0 % vs. 23.1 % ) . Breast cancer was diagnosed in four women who received testosterone ( as compared with none who received placebo ) ; one of the four received the diagnosis in the first 4 months of the study period , and one , in retrospect , had symptoms before undergoing r and omization . CONCLUSIONS In postmenopausal women not receiving estrogen therapy  , treatment with a patch delivering 300 microg of testosterone per day result ed in a modest but meaningful improvement in sexual function . The long-term effects of testosterone , including effects on the breast , remain uncertain . ( Clinical Trials.gov number , NCT00131495 . Objective To evaluate the efficacy and safety of a transdermal testosterone patch ( TTP , 300 μg/day ) in naturally menopausal women with hypoactive sexual desire disorder ( HSDD ) . Methods A total of 272 naturally menopausal women , predominantly not using hormone therapy , were r and omized in this 6-month , placebo-controlled , double-blind , multicenter study to receive twice weekly either TTP or an identical placebo . Efficacy endpoints measured were the 4-week frequency of satisfying sexual episodes ( SSE ) using the Sexual Activity Log , the sexual desire domain of the Profile of Female Sexual Function and distress by the Personal Distress Scale . Safety was assessed by adverse events , laboratory parameters and hormone levels . Results The TTP group demonstrated significant improvements in SSE ( p = 0.0089 ) as well as in sexual desire ( p = 0.0007 ) and reduced personal distress ( p = 0.0024 ) versus placebo at 6 months ( intent-to-treat analysis , n = 247 ) . The results were significant for all three endpoints in the subgroup ( n = 199 ) not using hormone therapy . Similar numbers of women treated with placebo and TTP discontinued ( n = 39 , 27.5 % vs. n = 26 , 20 % ) , reported adverse events ( including application site reactions ) ( n = 101 , 71.1 % vs. n = 81 , 62.3 % ) and withdrew due to adverse events ( n = 20 , 14.1 % vs. n = 9 , 6.9 % ) . No clinical ly relevant changes were noted in laboratory parameters . Serum free and total testosterone levels increased from baseline in the TTP group ( geometric means 5.65 pg/ml and 67.8 ng/dl , respectively , at week 24 ) within the physiological range ; no changes were seen in estradiol and sex hormone binding globulin levels . Conclusions TTP was effective in treating HSDD and improving sexual function in this study of naturally menopausal women with and without concurrent hormone therapy Objectives : To investigate the cognitive effects of high-dose oral estrogen alone or in combination with oral methyltestosterone in postmenopausal women . Methods : Participants were tested with a r and omized , double-blind design on the Identical Pictures , Cube Comparisons , Building Memory and Shape Memory tasks before and after 4 months of hormone treatment . Results : Women receiving estrogen and methyltestosterone maintained a steady level of performance on the Building Memory task , whereas those receiving estrogen alone showed a decrease in performance . Conclusions : These results indicate that the addition of testosterone to high-dose estrogen replacement exerts a protective effect on memory performance in postmenopausal women CONTEXT Hypoactive sexual desire disorder ( HSDD ) is one of the most common sexual problems reported by women , but few studies have been conducted to evaluate treatments for this condition . OBJECTIVE The objective of this study was to evaluate the efficacy and safety of a testosterone patch in surgically menopausal women with HSDD . DESIGN The design was a r and omized , double-blind , parallel-group , placebo-controlled , 24-wk study ( the Intimate SM 1 study ) . SETTING The study was performed at private or institutional practice s. PATIENTS The subjects studied were women , aged 26 - 70 yr , with HSDD after bilateral salpingo-oophorectomy who were receiving concomitant estrogen therapy . Placebo ( n = 279 ) or testosterone 300 microg/d ( n = 283 ) was administered . There were 19 patients who withdrew due to adverse events in the placebo group and 24 in the 300 mug/d testosterone group . INTERVENTION Testosterone ( 300 microg/d ) or placebo patches were applied twice weekly . MAIN OUTCOME MEASURE(S ) The primary end point was the change in the frequency of total satisfying sexual activity at 24 wk . Secondary end points included other sexual functioning end points and safety assessment s. RESULTS At 24 wk , there was an increase from baseline in the frequency of total satisfying sexual activity of 2.10 episodes/4 wk in the testosterone group , which was significantly greater than the change of 0.98 episodes/4 wk in the placebo group ( P = 0.0003 ) . The testosterone group also experienced statistically significant improvements in sexual desire and a decrease in distress . The overall safety profile was similar in both treatment groups . CONCLUSION In the Intimate SM 1 study , the testosterone patch improved sexual function and decreased distress in surgically menopausal women with HSDD and was well tolerated in this trial Objective To compare an oral estrogen- and rogen combination with estrogens alone on bone , menopausal symptoms , and lipoprotein profiles in postmenopausal women . Methods Surgically menopausal women received oral esterified estrogens ( 1.25 mg ) , or esterified estrogens ( 1.25 mg ) and methyltestosterone ( 2.5 mg ) daily , for 2 years . Bone mineral density of the lumbar spine and hip , menopausal symptoms , lipoprotein profiles , and biochemical and hematologic indices were evaluated . Results Sixty-six patients were enrolled in the study . Both treatment regimens prevented bone loss at the spine and hip ; combined estrogen- and rogen therapy was associated with a significant increase in spinal bone mineral density compared with baseline ( n = 24 ; mean score ± st and ard error 3.4 ± 1.2 % , P < .01 ) . In the estrogen group , high-density lipoprotein ( HDL ) cholesterol increased significantly and low-density lipoprotein cholesterol decreased significantly . Cholesterol , HDL cholesterol , and triglycerides decreased significantly in the estrogen- and rogen  group . Menopausal symptoms of somatic origin ( hot flashes , vaginal dryness , and insomnia ) were improved significantly by both treatments . Neither adverse hepatic effects nor significant safety or tolerance problems were reported in either group . Conclusion Oral estrogen- and rogen  increased vertebral bone mineral density compared with pre-treatment values and relieved somatic symptoms . Safety indices , including lipoprotein levels , indicated that the combination was well tolerated over the 2 years of treatment CONTEXT Changes in and rogen levels across the adult female life span and the effects of natural menopause and oophorectomy have not been clearly established . OBJECTIVE The objective of this study was to document the effects of age on and rogen levels in healthy women and to explore the effects of natural and surgical menopause . DESIGN , SETTING , AND PARTICIPANTS A cross-sectional study was conducted of 1423 non-healthcare-seeking women , aged 18 - 75 yr , r and omly recruited from the community over 15 months . MAIN OUTCOME MEASURES Serum levels by age of total testosterone ( T ) , calculated free T , dehydroepi and rosterone sulfate , and and rostenedione in a reference group of women free of confounding factors . Women in the reference group had no usage of exogenous steroid therapy ; no history of tubal ligation , hysterectomy , or bilateral oophorectomy ; and no hyperprolactinemia or polycystic ovarian syndrome . The effects of natural and surgical menopause on sex steroid levels were also examined . RESULTS In the reference population ( n = 595 ) , total T , calculated free T , dehydroepi and rosterone sulfate , and and rostenedione declined steeply with age ( P < 0.001 ) , with the decline of each being greater in the earlier than the later decades . Examination of serum and rogen levels by year in women aged 45 - 54 yr showed no independent effect of menopausal status on and rogen levels . In women aged 55 yr or older , those who reported bilateral oophorectomy and were not on exogenous steroids had significantly lower total T and free T levels than women 55 yr or older in the reference group . CONCLUSIONS We report that serum and rogen levels decline steeply in the early reproductive years and do not vary because a consequence of natural menopause and that the postmenopausal ovary appears to be an ongoing site of testosterone production . These significant variations in and rogens with age must be taken into account when normal ranges are reported and in studies of the role of and rogens in women OBJECTIVE In some women , a decline in sexual interest accompanies a relative and rogen insufficiency after menopause . We sought to characterize the hormonal effects of the combination of oral esterified estrogens and methyltestosterone and to investigate whether this regimen improves hypoactive sexual desire . DESIGN Double-blind r and omized trial . SETTING Healthy volunteers in a multicenter research environment . PATIENT(S ) Postmenopausal women taking estrogen therapy who were experiencing hypoactive sexual desire . INTERVENTION(S ) 4 months of treatment with 0.625 mg of esterified estrogens ( n = 111 ) or the combination of 0.625 mg of esterified estrogens and 1.25 mg of methyltestosterone ( n = 107 ) . MAIN OUTCOME MEASURES Baseline and end-of- study measurements of total and bioavailable testosterone and sex hormone-binding globulin ( SHBG ) , and mean change in level of sexual interest or desire as rated on the Sexual Interest Question naire . RESULT ( S ) Treatment with the combination of esterified estrogens and methyltestosterone significantly increased the concentration of bioavailable testosterone and suppressed SHBG . Scores measuring sexual interest or desire and frequency of desire increased from baseline with combination treatment and were significantly greater than those achieved with esterified estrogens alone . Treatment with the combination was well tolerated . CONCLUSION ( S ) Increased circulating levels of unbound testosterone and suppression of SHBG provide a plausible hormonal explanation for the significantly improved sexual functioning in women receiving the combination of esterified estrogen and methyltestosterone Objective : The extent to which aromatization of testosterone ( T ) to estradiol is required for the observed effects of testosterone therapy on sexual function and well-being are not known . Therefore , the authors investigated the effects of aromatase enzyme inhibition on sexual function , well-being , and mood in estrogen- and T-replete postmenopausal women in a double-blind , r and omized , placebo-controlled study . Design : Postmenopausal women using transdermal estrogen therapy for at least 8 weeks and reporting low sexual satisfaction ( score < 42 for the Sabbatsberg Sexual Self-rating Scale [ SSS ] ) with a total T value of less than 1.2 nmol/L were treated with 400 μL of a 0.5 % T gel ( total dose 2 mg ) and were r and omly assigned to receive treatment with either 2.5 mg/day of letrozole or an identical placebo tablet . Women were assessed at baseline ( week −2 ) and at 0 , 4 , 8 , and 16 weeks . Sexual function was assessed with the SSS , well-being was assessed with the Psychological General Well-being Index , and mood was ass 
    Output:
    