Koyanagi technique for repairing proximal hypospadias with penoscrotal transposition / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the application of Koyanagi technique for repairing proximal hypospadias with penoscrotal transposition.</p><p><b>METHODS</b>Koyanagi procedure was used for repairing proximal hypospadias with penoscrotal transposition in 26 boys (mean age 4.2 years) between July 2005 and June 2010.</p><p><b>RESULTS</b>Primary healing was achieved in 22 cases. Three patients suffered from urinary fistula and the external urethral orifice in one patient was retracted to penis coronary sulcus, who were re-operated successfully. Two cases showed slight penile ventral curvature. Slight stricture of the urethral external orifice was noted in one case, which relieved after one to two times of urethral sounding every week for eight months. 20 patients were followed up for 6-36 months (mean 10.5 months) with good cosmetic result and normal urethra function. The penoscrotal transposition was also corrected.</p><p><b>CONCLUSIONS</b>The original Koyanagi procedure might be one of the simple and effective method for repairing proximal hypospadias with penoscrotal transposition.</p>

A New Phase of Bacteria Life Cycle:Long-term Stationary Phase / 微生物学通报

The traditional view of bacterial life cycle consists of four phases,namely,lag phase,exponential or logarithmic phase,stationary phase and death phase.Although the standard textbook description of the bacterial life cycle has been useful,might not always provide us the whole visage of bacteria growth process.Recently,it has demonstrated that bacterial life cycle is expanded to five phases.It is a significant different growth phase after death phase:long-term stationary phase,which may be more akin to the nature environment in which microorganisms exist.Microbial cells survive due to mutating,and forming growth advantage during stationary phase (GASP) phenotype in this phase.It is very important for further study the microorganisms in this phase.