1.Assessment and Understanding of Chronotype
Sleep Medicine and Psychophysiology 2019;26(1):5-15
Chronotype (CT) is defined as an inter-individual difference in sleep-wake cycles and daily activities. Previous studies have suggested that this individual difference can influence our biological and psychological functioning. Literature regarding the psychometric properties and validity of CT measures are reviewed. We provide an overview of biological indicators (sleep-wake cycle, body temperature, cortisol, and melatonin) that are used for distinguishing two chronotypes: morningness (MT) and eveningness (ET). We also review the differences between CT in relation to personality traits and the occurrence of psychopathology. In addition, the methodological limitations of studies on CT are discussed. Finally, future research directions in terms of CT are proposed.
Body Temperature
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Hydrocortisone
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Individuality
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Psychometrics
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Psychopathology
2.Successful replantation of an avulsed frontal scalp through microvascular anastomoses of only one artery and one vein: a case report
Dongjin KIM ; Somin OH ; Woo Shik JEONG
Archives of Craniofacial Surgery 2024;25(2):95-98
Scalp avulsion is a devastating injury. The best possible procedure is replantation. Several successful scalp replantations with anastomoses of several vessels in large defects have been reported. In this report, we present a case of replantation of a large scalp avulsion using revascularizing with only one artery and vein. Despite the initial signs of flap congestion, we could predict the survival of the replanted scalp and terminate the procedure after detecting good perfusion and washout with indocyanine green fluorescence imaging. The procedure was successful following the patient’s recovery of sensory and sweating functions without complications such as flap necrosis or infection. Several important factors for successful scalp replantation with positive esthetic and functional outcomes were considered.
3.A Case of Chronic Renal Failure and Renal Cancer in a Worker Exposed to Lead.
Somin PARK ; Jongeun KIM ; Jungwon KIM ; Daegyun HONG ; Sangbum YE ; Dongmug KANG ; Euna KIM
Korean Journal of Occupational and Environmental Medicine 2008;20(3):272-281
INTRODUCTION: Studies evaluating rats and mice have provided convincing evidence that renal adenoma and carcinoma are induced by oral doses of lead acetate and lead subacetate, as well as by parenteral doses of lead phosphate. In addition, at least 2 cases of kidney cancer associated with heavy exposure to lead have been reported. However, there is still not enough information to confirm or rule out an association between kidney cancer and exposure to lead. CASE REPORT: In this study, we describe a case of kidney cancer in 54-year-old male worker that was exposed to lead-stearate while employed in the polyvinyl chloride processing industry for 17 years. The patient presented with gout and hypertension. Further examination revealed proteinuria, glucose in the urine and elevated blood urea nitrogen/creatinine levels. Renal ultrasonography, renal computed tomography and renal biopsy revealed chronic renal failure and renal cell cancer. CONCLUSION: We concluded that the gout and chronic renal failure in this case was caused by chronic lead exposure. However, further study is required to determine if the renal cancer was induced by lead exposure.
Adenoma
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Animals
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Biopsy
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Glucose
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Gout
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Humans
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Hypertension
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Kidney Failure, Chronic
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Kidney Neoplasms
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Lead
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Lead Poisoning
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Male
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Mice
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Middle Aged
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Occupational Diseases
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Organometallic Compounds
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Polyvinyl Chloride
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Proteinuria
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Rats
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Renal Insufficiency
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Urea
4.The Relationship between Work Ability and Job Stress Factors in Manufacturing Industries.
Sangbum YE ; Dongmug KANG ; Youngki KIM ; Minjeong SON ; Jongeun KIM ; Somin PARK
Korean Journal of Occupational and Environmental Medicine 2008;20(3):260-271
OBJECTIVE: This study was performed to investigate the association between work ability and job stress factors in three manufacturing industries. METHODS: The data were gathered from 705 workers of 3 manufacturing industries, from August 2007 to January 2008. A structured, self-reported questionnaire was used to access the demographic, socioeconomic and work related characteristics. Work ability and job stress factors were determined using two questionnaires: the work ability index (WAI) of the Finnish Institute of Occupational Health and the Korean Occupational Stress Scale (KOSS), respectively. RESULTS: According to the logistic regression analysis results, WAI was related to job stress factors after adjustment for age, shift work, employment type and exercise. Of the eight subscales, job demand, interpersonal conflict, lack of reward, occupational climate and total score were significantly associated with WAI. In the analysis of each factory, interpersonal conflict, job insecurity and lack of reward were significantly associated with WAI in factory II, and organizational system, lack of reward and total score in factory III, but there was no significant association in factory I. CONCLUSIONS: Job stress factors were significantly associated with WAI in two of the three manufacturing industries. Further and more detailed study needs to be conducted to reduce the job stress and improve the work ability.
Climate
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Employment
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Logistic Models
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Occupational Health
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Questionnaires
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Reward
5.A Case of Retinal Vessel Occlusion Caused by Bartonella Infection.
Minji WOO ; Somin AHN ; Joon Young SONG ; Seong Woo KIM
Journal of Korean Medical Science 2018;33(47):e297-
No abstract available.
Bartonella Infections*
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Bartonella*
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Retinal Vessels*
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Retinaldehyde*
6.Targeting Microglial and Neuronal Toll-like Receptor 2 in Synucleinopathies
Somin KWON ; Michiyo IBA ; Eliezer MASLIAH ; Changyoun KIM
Experimental Neurobiology 2019;28(5):547-553
Synucleinopathies are neurodegenerative disorders characterized by the progressive accumulation of α-synuclein (α-syn) in neurons and glia and include Parkinson's disease (PD) and dementia with Lewy bodies (DLB). In this review, we consolidate our key findings and recent studies concerning the role of Toll-like receptor 2 (TLR2), a pattern recognition innate immune receptor, in the pathogenesis of synucleinopathies. First, we address the pathological interaction of α-syn with microglial TLR2 and its neurotoxic inflammatory effects. Then, we show that neuronal TLR2 activation not only induces abnormal α-syn accumulation by impairing autophagy, but also modulates α-syn transmission. Finally, we demonstrate that administration of a TLR2 functional inhibitor improves the neuropathology and behavioral deficits of a synucleinopathy mouse model. Altogether, we present TLR2 modulation as a promising immunotherapy for synucleinopathies.
Animals
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Autophagy
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Dementia
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Immunotherapy
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Lewy Bodies
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Mice
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Neurodegenerative Diseases
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Neuroglia
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Neurons
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Neuropathology
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Parkinson Disease
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Toll-Like Receptor 2
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Toll-Like Receptors
7.Randomized controlled trial of the effect of general anesthetics on postoperative recovery after minimally invasive nephrectomy
Hyun-Kyu YOON ; Somin JOO ; Susie YOON ; Jeong-Hwa SEO ; Won Ho KIM ; Ho-Jin LEE
Korean Journal of Anesthesiology 2024;77(1):95-105
Background:
General anesthetic techniques can affect postoperative recovery. We compared the effect of propofol-based total intravenous anesthesia (TIVA) and desflurane anesthesia on postoperative recovery.
Methods:
In this randomized trial, 150 patients undergoing robot-assisted or laparoscopic nephrectomy for renal cancer were randomly allocated to either the TIVA or desflurane anesthesia (DES) group. Postoperative recovery was evaluated using the Korean version of the Quality of Recovery-15 questionnaire (QoR-15K) at 24 h, 48 h, and 72 h postoperatively. A generalized estimating equation (GEE) was performed to analyze longitudinal QoR-15K data. Fentanyl consumption, pain severity, postoperative nausea and vomiting, and quality of life three weeks after discharge were also compared.
Results:
Data were analyzed for 70 patients in each group. The TIVA group showed significantly higher QoR-15K scores at 24 and 48 h postoperatively (24 h: DES, 96 [77, 109] vs. TIVA, 104 [82, 117], median difference 8 [95% CI: 1, 15], P = 0.029; 48 h: 110 [95, 128] vs. 125 [109, 130], median difference 8 [95% CI: 1, 15], P = 0.022), however not at 72 h (P = 0.400). The GEE revealed significant effects of group (adjusted mean difference 6.2, 95% CI: 0.39, 12.1, P = 0.037) and time (P < 0.001) on postoperative QoR-15K scores without group-time interaction (P = 0.051). However, there were no significant differences in other outcomes, except for fentanyl consumption, within the first 24 h postoperatively.
Conclusions
Propofol-based TIVA showed only a transient improvement in postoperative recovery than desflurane anesthesia, without significant differences in other outcomes.
8.The Effectiveness of Virtual Reality Intervention for COVID-19-Related Psychological Distress: A Systematic Review
Seul-Ah LEE ; Simyang HEO ; Somin KIM ; Chaeyeon PARK ; Yujin JUNG ; Garam JI ; Hyeon-Ah LEE ; Kibum KIM ; Sungkean KIM ; Bin-Na KIM ; Ji Sun KIM
Psychiatry Investigation 2023;20(4):357-368
Objective:
The prolonged coronavirus disease-2019 (COVID-19) pandemic is likely to cause psychological distress in people. This systematic review aimed to identify the effectiveness of virtual reality (VR)-based psychological intervention among individuals with psychological distress during the COVID-19 crisis. PubMed, Ovid MEDLINE, Cochrane Library, Web of Science, Embase, and PsycINFO databases were searched for articles published until July 2022.
Methods:
The available citations were deduplicated and screened by two authors using the title and abstract information. Eligibility criteria were constructed according to the PICOT guidelines. Empirical studies of all designs and comparator groups were included if they appraised the impact of an immersive VR intervention on any standardized measure indicative of psychological distress (stress, anxiety, depression, and post-traumatic symptoms) or improvements in quality of life in participants, including COVID-19 patients, medical staff working with COVID-19 patients, and people who had experienced strict social distancing during the COVID-19 pandemic.
Results:
The results were discussed using a narrative synthesis because of the heterogeneity between studies. Seven of the studies met the inclusion criteria. There were two randomized controlled trials and five uncontrolled studies on VR interventions.
Conclusion
All studies reported significant improvement in a wide range of psychological distress during COVID-19, ranging from stress, anxiety, depression, and post-traumatic symptoms to quality of life, supporting the efficacy of VR-based psychological intervention. Our results suggest that VR intervention has potential to ameliorate COVID-19-related psychological distress with efficacy and safety.
9.Rapid detection of deformed wing virus in honeybee using ultra-rapid qPCR and a DNA-chip
Jung Min KIM ; Su Jin LIM ; SoMin KIM ; MoonJung KIM ; ByoungHee KIM ; Truong A TAI ; Seonmi KIM ; ByoungSu YOON
Journal of Veterinary Science 2020;21(1):e4-
Fast and accurate detection of viral RNA pathogens is important in apiculture. A polymerase chain reaction (PCR)-based detection method has been developed, which is simple, specific, and sensitive. In this study, we rapidly (in 1 min) synthesized cDNA from the RNA of deformed wing virus (DWV)-infected bees (Apis mellifera), and then, within 10 min, amplified the target cDNA by ultra-rapid qPCR. The PCR products were hybridized to a DNA-chip for confirmation of target gene specificity. The results of this study suggest that our method might be a useful tool for detecting DWV, as well as for the diagnosis of RNA virus-mediated diseases on-site.