The loop diuretic bumetanide (Bumex) is thought to have antiepileptic properties via modulate GABAA mediated signaling through their antagonism of cation-chloride cotransporters. Given that loop diuretics may act as antiepileptic drugs that modulate GABAergic signaling, we sought to investigate whether they also affect hippocampal function. The current study was performed to evaluate the possible role of NKCC1 on the hippocampal function. Brain slice extracellular recording, inhibitory avoidance, and western blot were applied in this study. Results showed that hippocampal Long-term potentiation was attenuated by suprafusion of NKCC1 inhibitor bumetanide, in a dose dependent manner. Sequent experiment result showed that Intravenous injection of bumetanide (15.2 mg/kg) 30 min prior to the training session blocked inhibitory avoidance learning significantly. Subsequent control experiment's results excluded the possible non-specific effect of bumetanide on avoidance learning. We also found the phosphorylation of hippocampal MAPK was attenuated after bumetanide administration. These results suggested that hippocampal NKCC1 may via MAPK signaling cascade to possess its function.

Purpose:To analyze the distribution of human papillomavirus (HPV) types and the characteristics of genital condyloma in Korean men. Materials and Methods: Between January 2015 and December 2015, we reviewed the medical charts of 435 male patients diagnosed with genital condyloma. A total of 441 samples were identified. The detection rate of each HPV type and its associated characteristics (age, number of HPV types, low-risk and/or high-risk types, number of lesions) were analyzed. Our sample population was divided into two groups: The non-urethral condyloma group and the urethral condyloma group. In addition, subgroup analysis was also performed. Results: Among the total 441 specimens, 409 (92.7%) were non-urethral condyloma and 32 (7.3%) were urethral condyloma. Single-type infection was observed in 56.7% and multiple-type infection was seen in 43.3%. HPV type 6 and type 11 were the most common types in total genital condyloma and subgroups. HPV type 11, which was detected in 43.8% of those in the urethral condyloma group and in 22.0% of those in the non-urethral condyloma group (p=0.009), showed a statistically significant difference with respect to the type-specific detection rate. Conclusions: As in previous studies, our study also showed that HPV type 6 was the most prevalent type among all genital condylomas, followed by HPV type 11. A subgroup analysis also showed the same result.