{"title":"Polysomnography Analysis of Electroencephalography in Patients Expending Benzodiazepine Drugs","authors":"D. Jang, Dong-Kyu Lim, Jae Kyung Kim","doi":"10.15324/kjcls.2021.53.4.333","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.333","url":null,"abstract":"Polysomnography Analysis of Electroencephalography in Patients Expending Benzodiazepine Drugs Da Jun Jang, Dong Kyu Lim, Jae Kyung Kim Department of Biomedical Laboratory Science, General Graduate School, Dankook University, Cheonan, Korea Department of Medical Laser, Dankook University Graduate School of Medicine, Cheonan, Korea Department of Biomedical Laboratory Science, Dankook University College of Health Sciences, Cheonan, Korea","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44972942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Obesity, Obstructive Sleep Apnea, and Metabolic Dysfunction","authors":"Jinkwan Kim, Sang-Shin Pyo, D. Yoon","doi":"10.15324/kjcls.2021.53.4.285","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.285","url":null,"abstract":"Sleep plays an important role in maintaining overall human health. There is increasing interest regarding the impact of sleep related disorders on metabolic diseases. Obstructive sleep apnea (OSA) is a common health problem, and in the last decade, the emergence of increasing obesity rates has further led to a remarkable increase in the prevalence of OSA, along with more prominent metabolic diseases. Obesity is the strongest risk factor for OSA. However, OSA is also known to cause obesity, suggesting an interaction between OSA and obesity. Although the underlying mechanisms leading to OSA-induced metabolic diseases are probably multi-factorial and are yet to be fully elucidated, the activation of inflammation and oxidative stress and the dysregulation of appetite-regulating hormones have emerged as important pathophysiological components of metabolic dysfunction and obesity observed in patients with OSA. Here, we will review the current state of research regarding the association of OSA with metabolic diseases and the possible pathophysiological mechanisms by which OSA could lead to such diseases. This will enhance our understanding of the potential interactions between OSA and obesity and between OSA and metabolic dysfunction.","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47116238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Interaction of High Sensitivity C-Reactive Protein and Uric Acid on Obesity in Koreans: Based on the Seventh Korea National Health and Nutrition Examination Survey (KNHANES VII, 2016∼2018)","authors":"Sang-Shin Pyo","doi":"10.15324/kjcls.2021.53.4.342","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.342","url":null,"abstract":"We used data from the 7th Korea National Health and Nutrition Examination Survey (KNHANES) (2016∼2018) to investigate an association between high sensitivity C-reactive protein (hsCRP) and uric acid in the obese. Obesity was defined as a body mass index (BMI) of 25 kg/m 2 or more, severe obesity as a BMI of 30 kg/m 2 or more, and morbid obesity as a BMI of 35 kg/m 2 or more. In the complex samples multiple logistic regression, despite adjustment by adding major risk factors, the odds ratio (OR) for obesity was higher in the group with high levels of both, hsCRP and uric acid than the reference group at all stages (obesity, OR 1.89, P<0.001 vs. severe obesity, OR 5.04, P<0.001 vs. morbid obesity, OR 8.20, P<0.001). The association between hsCRP and uric acid in obese patients increased from 1.89 to 8.20 as the obesity level increased, suggesting that participants with increased BMI were significantly affected by hsCRP and uric acid. Moreover, the interaction between hsCRP and uric acid was statistically significant even in the model corrected for major confounding factors (P for interaction=0.009).","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45364776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yeong Ju Lee, H. You, Song Hee Lee, S. Lee, Han Lee, H. Sung, Hee-Gyoo Kang, S. Hyun
{"title":"Comparison of Optimal Storage Temperature and Collection Reagents for Living Bacterial Cells in Swab Samples","authors":"Yeong Ju Lee, H. You, Song Hee Lee, S. Lee, Han Lee, H. Sung, Hee-Gyoo Kang, S. Hyun","doi":"10.15324/kjcls.2021.53.4.326","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.326","url":null,"abstract":"are useful and common sampling tools in various research fields, such as medicine, ecology, biotechnology, forensic medicine, and pollutant monitoring systems. Collection reagents are one of the essential components in sampling. It is important to develop a sample collection kit and designate an appropriate storage temperature because samples need to be stored for a long time. The purpose of this study was to identify the effects of three collection reagents and three storage temperatures on the recovery of living bacteria without media. We selected Escherichia coli and Staphylococcus aureus as representative environmental bacteria. Distilled water (DW), phosphate buffered saline (PBS), and Tris-EDTA (TE) buffer were used as collection reagents and stored at 22°C, 4°C, and − 70°C after sampling. The results of using each collection reagent and storage temperature on the bacteria were compared using relative light units (RLU) and the number of colony forming units (CFU). When using − 70°C storage temperature and the TE buffer, the number of living bacteria and the RLU values remained constant. It is therefore recommended that the sample be stored at − 70°C immediately after collection and a TE buffer solution be used as the collection reagent.","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45388336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MNNG-Regulated Differentially Expressed Genes that Contribute to Cancer Development in Stomach Cells","authors":"Tae-Jin Kim, Myeong-Kwan Kim, Dongju Jung","doi":"10.15324/kjcls.2021.53.4.353","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.353","url":null,"abstract":"Cancer is a global health problem. There are diverse types of cancers, but there are several common pathways which lead to the development of cancer. Changes in gene expression might be the most common similarity found in almost all cancers. An understanding of the underlying changes in gene expression during cancer progression could lay a valuable foundation for the development of cancer therapeutics and even cancer vaccines. In this study, a well-known carcinogen, N-methyl-N’-nitro-N-nitrosoguanidine (MNNG), was employed to induce changes in gene expression in normal stomach cells. MNNG is known to cause cancer by inducing damage to DNA in MNNG-treated mammalian cells and animals fed with this carcinogen. An analysis was performed by comparing the differentially expressed genes (DEGs) caused by MNNG treatment with DEGs in stomach cancer cell lines. To this end, methods of analysis for functional categorization and protein-protein interaction networks, such as gene ontology (GO), the database for annotation, visualization, and integrated discovery (DAVID), Kyoto encyclopedia of genes and genomics (KEGG) and search tool for the retrieval of interacting genes/proteins (STRING), were used. As a result of these analyses, MNNG-regulated specific genes and interaction networks of their protein products that contributed to stomach cancer were identified. Copyright Ⓒ","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49051656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Protective Effects of Lespedeza bicolor Extract on B16/F10 Melanoma Cell Lines Damaged by Lead Acetate, Heavy Metal Compounds","authors":"Y. Seo","doi":"10.15324/kjcls.2021.53.4.363","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.363","url":null,"abstract":"","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42384914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Diagnosis and Prognosis of Sepsis","authors":"Chang-Eun Park","doi":"10.15324/kjcls.2021.53.4.309","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.309","url":null,"abstract":"Sepsis is a physiological response to a source of infection that triggers mechanisms that compromise organ function, leading to death if not treated early. Biomarkers with high sensitivity, specificity, speed, and accuracy that could differentiate sepsis from non-infectious systemic inflammatory response syndrome (SIRS) could bring about a revolution in sepsis treatment. Given the limitations and time required for microbial verification of pathogens, the accurate diagnosis of infection before employing antibiotic therapy is important and clinically necessary. Procalcitonin (PCT), lactate, C-reactive protein (CRP), cytokines, and proadrenomedullin (ProADM) are the common biomarkers used for diagnosis. The procalcitonin (PCT)-guided antibiotic treatment in patients with acute respiratory infections effectively reduces antibiotic exposure and side effects while improving survival rates. The evidence regarding sepsis screening in hospitalized patients is limited. Clinicians, researchers, and healthcare decision-makers should consider these findings and limitations when implementing screening tools, future research, or policy on sepsis recognition in hospitalized patients. The use of biomarkers in pediatric sepsis is promising, although such use should always be correlated with clinical evaluation. Biomarkers may also improve the prediction of mortality, especially in the early phase of sepsis, when the levels of certain pro-inflammatory cytokines and proteins are elevated.","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49128152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Distribution Variations of Chigger Mites Collected in Jinan, Jeollabuk-do","authors":"Chul Park, H. Lee","doi":"10.15324/kjcls.2021.53.4.317","DOIUrl":"https://doi.org/10.15324/kjcls.2021.53.4.317","url":null,"abstract":"","PeriodicalId":52807,"journal":{"name":"Korean Journal of Clinical Laboratory Science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42921939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}