No abstract available.
Oxandrolone*

PURPOSE: Short stature is the most constant finding in Turner syndrome. Short stature in Turner syndrome has lately received considerable attention, mostly because of recent attemp to improve growth by hormonal treatments; growth hormone, oxandrolone, estrogen. The aim of this study was to find out whether growth promoting treatment would improve final height in girls with Turner syndrome. METHODS:Seventy-one girls with the clinical chracteristics Turner syndrome verified by karyotype analysis were entered into this study. The following selection criteria for final adult height were used; Chronological age of more than 14years old, bone age of more than 15years old and growth velocity of less than 0.5cm per 6months. Analysis was performed by means of multiple regression analysis between descriptive data; modality of treatment with oxandrolone and/or estrigen, parental height, karyotype and final adult height. RESULTS: 1) The final adult height of untreated Turner syndrome was 138.9+/-3.9cm. 2)The final adult height in 29 GH treated Turner girls was 143.9+/-6.5cm, significant higher value than 42 GH untreated Turner girls height, 139.8+/-5.2cm(p<0.01). 3) The final height in GH only group and combined group were 141.2+/-6.0cm, 146.2+/-6.2cm, respectively. The combined therapy was more effective than GH therapy(p<0.01). 4) The final height in 32 patients with karyotype of 45,X was 141.6+/-5.6cm, and that of 31 structural aberration group was 140.3+/-6.2cm. There was no significant difference between two groups. But in mosaicism, only numeric abnormalities, the final height 145.9+/-6.1cm was much more higher than other two groups(p<0.05). 5) The final adult height in Turner syndrome was in good correlation with target height. Final adult height(cm)= 1.01*Target height(cm)- 4.97 r=0.51, p<0.05. 6) There was positive correlation between final adult height and height SDS at start GH treatment and negative correlation with age at start GH treatment. The delta height (final height - height at start treatment) correlate with GH treatment duration. CONCLUSIONS:The final adult height in Turner syndrome in a given ethinic or national population varies in the same way as adult height in normal women. Growth hormone therapy may increase final height in Turner syndrome irrespective of ethinic or national difference. Further growth was observed in GH combined with estrogen or oxandrolone.
Adult* ; Estrogens ; Female ; Growth Hormone ; Humans ; Karyotype ; Mosaicism ; Oxandrolone ; Parents ; Patient Selection ; Turner Syndrome*

PURPOSE: Children born with single ventricle physiology demonstrate poor growth rate and suffer from malnutrition, which lead to increased morbidity and mortality in this population. We assume that an anabolic steroid, oxandrolone, will promote growth in these infants by improving myocardial energy utilization. The purpose of this paper is to study the efficacy of oxandrolone on myocardial energy consumption in these infants. MATERIALS AND METHODS: We modeled single ventricle physiology in a lamb by prenatally shunting the aorta to the pulmonary artery and then postnatally, we monitored cardiac energy utilization by quantitatively measuring the first order reaction rate constant, kf of the creatine-kinase reaction in the heart using magnetization transfer 31P magnetic resonance spectroscopy, home built 1H/31P transmit/receive double tuned coil, and transmit/receive switch. We also performed cine MRI to study the structure and dynamic function of the myocardium and the left ventricular chamber. The spectroscopy data were processed using home-developed python software, while cine data were analyzed using Argus software. RESULTS: We quantitatively measured both the first order reaction rate constant and ejection fraction in the control, shunted, and the oxandrolone-treated lambs. Both kf and ejection fraction were found to be more significantly reduced in the shunted lambs compared to the control lambs, and they are increased in oxandrolone-treated lambs. CONCLUSION: Some improvement was observed in both the first order reaction rate constant and ejection fraction for the lamb treated with oxandrolone in our preliminary study.
Aorta ; Boidae ; Child ; Evaluation Studies as Topic ; Heart ; Humans ; Infant ; Magnetic Resonance Imaging, Cine ; Magnetic Resonance Spectroscopy ; Malnutrition ; Mortality ; Myocardium ; Oxandrolone ; Physiology ; Pulmonary Artery ; Spectrum Analysis