The basic mechanism for the excitation of the peripheral vestibular receptors following acute hypotension induced by sodium nitroprusside (SNP) or hemorrhage was investigated in anesthetized rats. Electrical activity of the afferent vestibular nerve was measured after pretreatment with kynurenic acid, an NMDA receptor antagonist. The activity of the vestibular nerve at rest following acute hypotension induced by SNP or simulating hemorrhage was a greater increase than in control animals. The gain of the vestibular nerve with sinusoidal rotation following acute hypotension increased significantly compared to control animals. The acute hypotension induced by SNP or hemorrhage did not change the activity of the afferent vestibular nerve after kynurenic acid injection. These results suggest that acute hypotension produced excitation of the vestibular hair cells via glutamate excitotoxicity in response to ischemia.
Animals ; Glutamic Acid ; Hair Cells, Vestibular ; Hemorrhage ; Hypotension* ; Ischemia ; Kynurenic Acid ; N-Methylaspartate ; Nitroprusside ; Rats* ; Vestibular Nerve*

"Journal of Korean Academy of Adult Nursing" has been published since 1989 and more than 330 articles have been published up 2000. We reviewed all the articles published in this journal to analyze the contents and trend of published articles and to find out the way of improvement both in quantity and quality of studies in this area. The results are as follows; 1) Ninety percent of articles were quantitative studies. Experimental design was used in 16.1% and quasi-experimental design was adapted in 73.6% of articles. Qualitative research were 10.3% of total articles reviewed. 2) Only 5.1% of articles described theoretical framework and 73.6% of experimentally designed articles included research hypotheses. 3) Among experimental studies, only one was true experimental studie design. Eighty nine point three persent had descriptive survey method among non-experimental studies. Amog the thirty four qualitative studies, phenomenologic(73.5%), grounded theory(14.7%), and ethnographic (11.8%) design were used. 4) Most of research subject were patients and few healthy people, healthcare worker, and patient family. 5) Psychosocial data collection method which used questionnaire were 53.7% and interview, physical measurement, observation were used in 22.8%, 8.2%, 5.4% of articles respectively. 6) Total number of keywords were 692, and average number of key words per article was 2.2. Health-related keyword was the most frequently used according to four metaparadigm of nursing (human, health, nursing, and environment). Environment related keyword was rarely appeared. The number and quality of nursing research in "Journal of Korean Academy of Adult Nursing" have been improved continuously. It is difficult to find out special trend or characteristics which is unique in this journal because of relatively short history of adult nursing studies. This review study was performed to analyze adult nursing studies only in the view of quantitative aspect, but it is needed to analyse qualitatively to find philosophical or theoretical trend in nursing.
Adult* ; Surveys and Questionnaires ; Delivery of Health Care ; Humans ; Nursing Research* ; Nursing* ; Qualitative Research ; Research Design ; Research Subjects

The National Evidence-based Collaborating Agency (NECA) holds the NECA Round-table Conference that not only disseminates objective and systematic information on topics of social concern in public health care but also organizes discussions on core issues under dispute in the literature through panels composed of multidisciplinary experts. Accordingly, the Round-table Conference was composed of multidisciplinary experts including medical specialists in the areas of psychiatry and preventive medicine, psychiatric and mental health nursing, psychologists, social welfare experts, consultation experts, religious leaders, and government officials from the Ministry of Education, Science and Technology, and Ministry of Health and Welfare. The Round-table Conference, tasked with analysis of the actual status and causes of, and search for solutions for suicide in adolescents, has reached consensus on the current status, trend, risk factors and prevention factors, problems and issues in prevention and coping strategies, effective prevention and coping strategies and areas of research needed for the future. The Round-table Conference commented on the actual status and gravity of suicides in adolescents, and came to the agreement that mental health issues including stress from interpersonal relationships and depression are the key risk factors of suicide. It was further agreed that problems in the measures being implemented for each of the areas include lack of manpower and funding, and inadequate organic association and cooperation among relevant institutions. They also agreed that development of a government-initiated suicide prevention program for adolescents, association among relevant experts, and development, and management of practical guidelines that are of broad and practical use are important. Furthermore, the panels were in agreement that the mass media must comply with the recommended level of coverage in reporting of suicide as adolescents are greatly influenced by provocative mass media reports due to their strong impulsive dispositions.
Adenosine-5'-(N-ethylcarboxamide) ; Adolescent ; Cause of Death ; Consensus ; Depression ; Dissent and Disputes ; Financial Management ; Gravitation ; Humans ; Mass Media ; Mental Health ; Occupational Groups ; Porphyrins ; Preventive Medicine ; Public Health ; Risk Factors ; Social Welfare ; Specialization ; Suicide