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RISS 인기검색어
- 검색키워드
- 저자 : Behre, H.M. (검색결과 5 건)
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Brock, G.,Heiselman, D.,Maggi, M.,Kim, S.W.,Rodriguez Vallejo, J.M.,Behre, H.M.,McGettigan, J.,Dowsett, S.A.,Hayes, R.P.,Knorr, J.,Ni, X.,Kinchen, K. Williams and Wilkins Co 2016 The Journal of urology Vol.195 No.3
<P>Purpose: We determined the effect of testosterone solution 2% on total testosterone level and the 2 symptoms of hypogonadism, sex drive and energy level. Materials and Methods: This was a randomized, multicenter, double-blind, placebo controlled, 16-week study to compare the effect of testosterone and placebo on the proportion of men with a testosterone level within the normal range (300 to 1,050 ng/dl) upon treatment completion. We also assessed the impact of testosterone on sex drive and energy level measured using SAID (Sexual Arousal, Interest and Drive scale) and HED (Hypogonadism Energy Diary), respectively. A total of 715 males 18 years old or older with total testosterone less than 300 ng/dl and at least 1 symptom of testosterone deficiency (decreased energy and/or decreased sexual drive) were randomized to 60 mg topical testosterone solution 2% or placebo once daily. Results: Of study completers 73% in the testosterone vs 15% in the placebo group had a testosterone level within the normal range at study end point (p < 0.001). Participants assigned to testosterone showed greater baseline to end point improvement in SAID scores (low sex drive subset p < 0.001 vs placebo) and HED scores (low energy subset p = 0.02 vs placebo, not significant at prespecified p < 0.01). No major adverse cardiovascular or venous thrombotic events were reported in the testosterone group. The incidence of increased hematocrit was higher with testosterone vs placebo (p = 0.04). Conclusions: Once daily testosterone solution 2% for 12 weeks was efficacious in restoring normal testosterone levels and improving sexual drive in hypogonadal men. Improvement was also seen in energy levels on HED though not at the prespecified p < 0.01. No new safety signals were identified.</P>
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Diagnosis of Cardiac Metastasis from Endometrial Cancer by F-18 FDG-PET/CT
T. Liu,S. Khan,S. Behr,C. Mari Aparici 대한핵의학회 2014 핵의학 분자영상 Vol.48 No.3
We report a case of a 59-year-old woman with rightventricular metastasis of undifferentiated endometrial cancer. Cardiac metastasis from endometrial cancer is a very rarefinding. The case demonstrates that undifferentiated endometrialcancer is capable of metastasizing, presumably through ahematogenous route, to unexpected distant organs. Theseunexpected sites should not be undermined in the restagingand surveillance of these patients.
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Verena Preis,Sebastian Hahnel,Michael Behr,Martin Rosentritt 대한치과보철학회 2018 The Journal of Advanced Prosthodontics Vol.10 No.4
PURPOSE. To investigate the fatigue and fracture resistance of computer-aided design and computer-aided manufacturing (CAD/CAM) ceramic molar crowns on dental implants and human teeth. MATERIALS AND METHODS. Molar crowns (n=48; n=8/group) were fabricated of a lithium-disilicate-strengthened lithium aluminosilicate glass ceramic (N). Surfaces were polished (P) or glazed (G). Crowns were tested on human teeth (T) and implant-abutment analogues (I) simulating a chairside (C, crown bonded to abutment) or labside (L, screw channel) procedure for implant groups. Polished/glazed lithium disilicate (E) crowns (n=16) served as reference. Combined thermal cycling and mechanical loading (TC: 3000×5캜/3000×55캜; ML: 1.2×106 cycles, 50 N) with antagonistic human molars (groups T) and steatite spheres (groups I) was performed under a chewing simulator. TCML crowns were then analyzed for failures (optical microscopy, SEM) and fracture force was determined. Data were statistically analyzed (Kolmogorow-Smirnov, one-way-ANOVA, post-hoc Bonferroni, α=.05). RESULTS. All crowns survived TCML and showed small traces of wear. In human teeth groups, fracture forces of N crowns varied between 1214±293 N (NPT) and 1324±498 N (NGT), differing significantly (P≤.003) from the polished reference EPT (2044±302 N). Fracture forces in implant groups varied between 934±154 N (NGI_L) and 1782±153 N (NPI_C), providing higher values for the respective chairside crowns. Differences between polishing and glazing were not significant (P≥.066) between crowns of identical materials and abutment support. CONCLUSION. Fracture resistance was influenced by the ceramic material, and partly by the tooth or implant situation and the clinical procedure (chairside/labside). Type of surface finish (polishing/glazing) had no significant influence. Clinical survival of the new glass ceramic may be comparable to lithium disilicate.
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Vitamin A Supplementation for Different Periods Alters Oxidative Parameters in Lungs of Rats
Matheus Augusto de Bittencourt Pasquali,Daniel Pens Gelain,Marcos Roberto de Oliveira,Guilherme Antônio Behr,Leonardo Lisbôa da Motta,Ricardo Fagundes da Rocha,Fábio Klamt,José Cláudio Fonseca Moreira 한국식품영양과학회 2009 Journal of medicinal food Vol.12 No.6
Lungs require an adequate supply of vitamin A (retinol) for normal embryonic development, postnatal maturation, and maintenance and repair during adult life. However, recent intervention studies revealed that supplementation with retinoids resulted in higher incidence of lung cancer, although the mechanisms underlying this effect are still unknown. Here, we studied the effect of vitamin A supplementation on oxidative stress parameters in lungs of Wistar rats. Vitamin A supplementation at either therapeutic (1,000 and 2,500IU/kg) or excessive (4,500 and 9,000IU/kg) doses for 3, 7, or 28 days induced lipid peroxidation, protein carbonylation, and oxidation of protein thiol groups, as well as change in catalase and superoxide dismutase activity. Together, these results suggest that vitamin A supplementation causes significant changes in redox balance, which are frequently associated with severe lung dysfunction.
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Development of a 60 Hz Power Standard Using SNS Programmable Josephson Voltage Standards
Burroughs, C.J.,Benz, S.P.,Dresselhaus, P.D.,Waltrip, B.C.,Nelson, T.L.,Yonuk Chong,Williams, J.M.,Henderson, D.,Patel, P.,Palafox, L.,Behr, R. Institute of Electrical and Electronics Engineers 2007 IEEE transactions on instrumentation and measureme Vol.56 No.2
<P>We are implementing a new standard for 60 Hz power measurements based on precision sinusoidal reference voltages from two independent programmable Josephson voltage standards (PJVS): one for voltage and one for current. The National Institute of Standards and Technology PJVS systems use series arrays of Josephson junctions to produce accurate quantum-based DC voltages. Using stepwise-approximation synthesis, the PJVS systems produce sinewaves with precisely calculable RMS voltage and spectral content. We present measurements and calculations that elucidate the sources of error in the RMS voltage that are intrinsic to the digital-synthesis technique and that are due to the finite rise times and transients that occur when switching between the discrete voltages. Our goal is to reduce all error sources and uncertainty contributions from the PJVS synthesized waveforms to a few parts in 10 <SUP>7</SUP> so that the overall uncertainty in the AC-power standard is a few parts in 10<SUP>6</SUP></P>
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