• Development and Reproduction
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• v.20 no.3
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• pp.267-274
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• 2016

Cichlid fish species exhibit characteristic sexual behaviors according to not only reproductive stages but also social status. In a reproductive season, Astatotilapia burtoni males compete for females and a small number of dominant winners finally obtain the chance of spermiation. In addition to the characteristic behaviors, the dominant males have relatively bigger gonadotropin-releasing hormone 1 (GnRH1) neurons in the preoptic area (POA) of brain compared to those of subordinate males. Although the stimulatory effect of GnRH1 in vertebrate reproduction is well established, little is known about the triggering signal pathway to control GnRH1 neurons and GnRH1-mediated sexual behavior. In the present study, we evaluated the potential effect of TOR inhibitor rapamycin in relation to the cichlid male behaviors and GnRH1 neuron. After 14 h and 26 h of intraventricular injection of rapamycin, behavior patterns of chasing and courtship display did not show significant changes between rapamycin- and DMSO-injected males. Behaviors of spawning site entry increased in rapamycin-injected fish at 26 h post-injection than at 14 h post-injection significantly (P<0.05). Meanwhile, there was a tendency that GnRH1 neurons' soma size in the POA shrank by rapamycin injection, whereas the testes did not show notable changes. Taken together, these results suggest the possible role of TOR signal on GnRH1-mediated sexual behavior in cichlid dominant males, although further biological characterization of the TOR signaling pathway will be required to clarify this matter.

• Journal of the Korea Convergence Society
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• v.11 no.3
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• pp.145-152
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• 2020

This study investigated the differences in health behaviors of adolescents depending on their sexual experiences. Secondary data analysis was conducted using the data of 61,861 respondents from the 2017 adolescents' health behavior online survey in Korea. Adolescents with sexual experience were typically male, in high school, from a boy's school, had low academic performance, lived apart from their parents, and of either high or low economic status; their health behaviors were characterized by more physical activity, stress, sadness and hopelessness, thought/planned/attempted suicide, drinking, and smoking. Almost half of adolescents with sexual experience (48.9%) did not use contraception. The results of this study are significant and can contribute to the development of sex education programs when considering the characteristics of Korean adolescents and their sexual health.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.2
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• pp.311-320
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• 2019

This study is a descriptive study to investigate the relationship between sexual function, sleep quality, and depression in male cirrhosis patients. Data were collected from a structured questionnaire from August 16, 2017 to January 30, 2018. Data were collected by t-test, ANOVA, Scheffe test, Pearson correlation. AS a result, the lower the sexual function of male cirrhosis patients, the lower the quality of sleep (r=-.232, p =.005) and the higher the depression score (r=-.381, p<.001) The lower the score, the higher the score of depression (r=.561, p<.001). Sexual function, quality of sleep and depression were found to be statistically significant. The results of this study can be used as basic data for the development of nursing intervention for male cirrhosis patients.

• Journal of the Korea Convergence Society
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• v.12 no.1
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• pp.327-340
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• 2021

This is nonequivalent control group pretest-posttest quasi-experimental study to develop a sexual education program for improving sexual confidence of men with spinal cord injury disabled and assess the effect of the program. The program was based on Dick & Carey's systematic design of instruction, literature review, focus group, in-depth interview, expert meeting, and preliminary study and formative evaluation. Subjects were conveniently assigned to experimental group of 30 and control group of 29, and the program was provided to experimental group once a week for 90~120 minutes, 3 sessions total. Sexual knowledge, attitude, and marriage intention were measured before, after, and after 4 weeks of intervention, and there was a significant difference in sexual knowledge(p<.001) and attitude(p=.020). The program positively changed sexual knowledge and attitude of men with spinal cord injury, and was useful nursing intervention. This study is considered to be significant as a basic data for social awareness ventilation and health education for the disabled.

• 한국균학회소식:학술대회논문집
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• 2009.10a
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• pp.96-97
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• 2009

• Proceedings of the Microbiological Society of Korea Conference
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• 2003.05a
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• pp.46-48
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• 2003

• Proceedings of the Microbiological Society of Korea Conference
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• 2009.05a
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• pp.154-154
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• 2009

• Proceedings of the Korean Society of Life Science Conference
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• 2006.09a
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• pp.33.2-33.2
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• 2006

• Proceedings of the Microbiological Society of Korea Conference
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• 2006.05a
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• pp.137-137
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• 2006

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 1998.06a
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• pp.167.1-168
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• 1998