1.Inhibitory effect of carvacrol on lipopolysaccharide-induced memory impairment in rats
Bombi LEE ; Mijung YEOM ; Insop SHIM ; Hyejung LEE ; Dae hyun HAHM
The Korean Journal of Physiology and Pharmacology 2020;24(1):27-37
Neuroinflammation is an important process underlying a wide variety of neurodegenerative diseases. Carvacrol (CAR) is a phenolic monoterpene commonly used as a food additive due to its antibacterial properties, but it has also been shown to exhibit strong antioxidative, anti-inflammatory, and neuroprotective effects. Here, we sought to investigate the effects of CAR on inflammation in the hippocampus and prefrontal cortex, as well as the molecular mechanisms underlying these effects. In our study, lipopolysaccharide was injected into the lateral ventricle of rats to induce memory impairment and neuroinflammation. Daily administration of CAR (25, 50, and 100 mg/kg) for 21 days improved recognition, discrimination, and memory impairments relative to untreated controls. CAR administration significantly attenuated expression of several inflammatory factors in the brain, including interleukin-1β, tumor necrosis factor-α, and cyclooxygenase-2. In addition, CAR significantly increased expression of brain-derived neurotrophic factor (BDNF) mRNA, and decreased expression of Toll-like receptor 4 (TLR4) mRNA. Taken together, these results show that CAR can improve memory impairment caused by neuroinflammation. This cognitive enhancement is due to the anti-inflammatory effects of CAR medicated by its regulation of BDNF and TLR4. Thus, CAR has significant potential as an inhibitor of memory degeneration in neurodegenerative diseases.
Animals
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Brain
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Brain-Derived Neurotrophic Factor
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Cyclooxygenase 2
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Cytokines
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Discrimination (Psychology)
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Food Additives
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Hippocampus
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Inflammation
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Lateral Ventricles
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Lipopolysaccharides
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Memory
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Necrosis
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Neurodegenerative Diseases
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Neuroprotective Agents
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Phenol
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Prefrontal Cortex
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Rats
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RNA, Messenger
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Toll-Like Receptor 4
2.Prediction Model for Massive Transfusion in Placenta Previa during Cesarean Section
Jieun KANG ; Hye Sim KIM ; Eun Bi LEE ; Young UH ; Kyoung Hee HAN ; Eun Young PARK ; Hyang Ah LEE ; Dae Ryong KANG ; In Bai CHUNG ; Seong Jin CHOI
Yonsei Medical Journal 2020;61(2):154-160
0.05). The area under the receiver operating characteristics curve (AUC) was 0.922 [95% confidence interval (CI) 0.89–0.95]. In external validation, the discrimination was good, with an AUC value of 0.833 (95% CI 0.70–0.92) for this model. Nomogram calibration plots indicated good agreement between the predicted and observed outcomes, exhibiting close approximation between the predicted and observed probability.CONCLUSION: We constructed a scoring model for predicting massive transfusion during cesarean section in women with placenta previa. This model may help in determining the need to prepare an appropriate amount of blood products and the optimal timing of blood transfusion.]]>
Area Under Curve
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Blood Transfusion
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Calibration
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Cesarean Section
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Cohort Studies
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Discrimination (Psychology)
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Early Intervention (Education)
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Erythrocytes
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Female
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Humans
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Logistic Models
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Maternal Age
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Nomograms
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Placenta Previa
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Placenta
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Placentation
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Postpartum Hemorrhage
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Pregnancy
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ROC Curve
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Ultrasonography
3.A Topic Modeling Analysis for Online News Article Comments on Nurses' Workplace Bullying
Jiyeon KANG ; Soogyeong KIM ; Seungkook ROH
Journal of Korean Academy of Nursing 2019;49(6):736-747
PURPOSE: This study aimed to explore public opinion on workplace bullying in the nursing field, by analyzing the keywords and topics of online news comments.METHODS: This was a text-mining study that collected, processed, and analyzed text data. A total of 89,951 comments on 650 online news articles, reported between January 1, 2013 and July 31, 2018, were collected via web crawling. The collected unstructured text data were preprocessed and keyword analysis and topic modeling were performed using R programming.RESULTS: The 10 most important keywords were “work” (37121.7), “hospital” (25286.0), “patients” (24600.8), “woman” (24015.6), “physician” (20840.6), “trouble” (18539.4), “time” (17896.3), “money” (16379.9), “new nurses” (14056.8), and “salary” (13084.1). The 22,572 preprocessed key words were categorized into four topics: “poor working environment”, “culture among women”, “unfair oppression”, and “society-level solutions”.CONCLUSION: Public interest in workplace bullying among nurses has continued to increase. The public agreed that negative work environment and nursing shortage could cause workplace bullying. They also considered nurse bullying as a problem that should be resolved at a societal level. It is necessary to conduct further research through gender discrimination perspectives on nurse workplace bullying and the social value of nursing work.
Bullying
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Data Mining
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Discrimination (Psychology)
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Nursing
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Public Opinion
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Sexism
4.Reconsideration of urine culture for the diagnosis of acute pyelonephritis in children: a new challenging method for diagnosing acute pyelonephritis
Korean Journal of Pediatrics 2019;62(12):433-437
Acute pyelonephritis (APN) should be detected and treated as soon as possible to reduce the risk of the development of acquired renal scarring. However, in the medical field, urine culture results are not available or considered when the prompt discrimination of APN is necessary and empirical treatment is started. Furthermore, urine culture cannot discriminate APN among children with febrile urinary tract infection (UTI) (pyelitis, lower UTI with other fever focus). Therefore, the usefulness of urine culture for diagnostic purposes is small and the sampling procedure is invasive. Congenital hypoplastic kidney is the most common cause of chronic kidney injury in children. Thus, it is desirable that a main target be detected as early as possible when imaging studies are performed in children with APN. However, if APN does not recur, no medical or surgical treatment or imaging studies would be needed because the acquired renal scar would not progress further. Therefore, the long-term prognosis of APN in young children, particularly infants, depends on the number of recurrent APN, not other febrile UTI. New methods that enable prompt, practical, and comfortable APN diagnosis in children are needed as alternatives to urinary catheterization for urine culture sampling.
Child
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Cicatrix
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Diagnosis
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Discrimination (Psychology)
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Fever
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Humans
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Infant
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Kidney
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Methods
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Prognosis
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Pyelitis
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Pyelonephritis
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Urinary Catheterization
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Urinary Catheters
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Urinary Tract Infections
5.Common Scope of Practice for Advanced Practice Nurses in Korea Derived from Expert Agreement
Cho Sun LEEM ; Su Jung CHOI ; Kyung Choon LIM ; Young Hee YI ; Jae Sim JEONG ; Yong Ae SHIN ; Young Ah KANG ; Hayoung PARK ; Eun Mi KIM
Journal of Korean Critical Care Nursing 2019;12(3):35-49
PURPOSE: This study aimed to propose a common scope of practice (SOP) for 13 specialties of Advanced Practice Nurses (APNs) in Korea.METHODS: The first draft of a common SOP was extracted from domestic and international laws with a literature review by 17 experts from the Korean Association of Advanced Practice Nurses (KAAPN). Then, the common SOP was finalized after comparing the activities of APNs in clinical settings.RESULTS: A total of 70 duties were identified and six categories were suggested for the common SOP. The SOP proposed by the KAAPN featured the following: 1) identification of and discrimination between health problems; 2) prescription and implementation of diagnostic tests; 3) treatment of injuries and diseases while implementing measures to prevent exacerbation; 4) prescription of medicinal products in line with 1) to 3); 5) referral and consultation; and 6) education and counseling. It was then confirmed that the proposed six categories in the common SOP reflected all the duties performed by APNs in clinical practice, including all 40 activities.CONCLUSION: The results of this study can be used as evidence for the legalization of a common SOP for APNs. Given the increasing multidisciplinary team approach adopted in Korean hospitals, it may be desirable to establish a broader SOP to reflect the diverse duties of APNs.
Counseling
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Diagnostic Tests, Routine
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Discrimination (Psychology)
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Education
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International Law
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Korea
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Prescriptions
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Professional Practice
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Referral and Consultation
6.The New Cutoff Value of the Hepatic Venous Pressure Gradient on Predicting Long-Term Survival in Cirrhotic Patients
Tae Yeob KIM ; Ki Tae SUK ; Soung Won JEONG ; Tom RYU ; Dong Joon KIM ; Soon Koo BAIK ; Joo Hyun SOHN ; Woo Kyoung JEONG ; Eunhee CHOI ; Jae Young JANG ; Moon Young KIM
Journal of Korean Medical Science 2019;34(33):e223-
BACKGROUND: This study aimed to determine the prognostic role of the categorized hemodynamic stage (HS) based on the hepatic venous pressure gradient (HVPG) in patients with portal hypertension. METHODS: Of 1,025 cirrhotic patients who underwent HVPG measurement, data on 572 non-critically-ill patients were collected retrospectively between 2008 and 2013. The following two HS categorizations were used: HS-1 (6–9, 10–12, 13–16, 17–20, and > 20 mmHg; designated as groups 1–5, respectively) and HS-2 (6–12, 13–20, and > 20 mmHg). Clinical characteristics, mortality rates, and prognostic predictors were analyzed according to the categorized HS. RESULTS: During the mean follow-up period of 25 months, 86 (15.0%) patients died. The numbers of deaths in HS-1 groups were 7 (6.3%), 7 (6.9%), 30 (18.0%), 20 (15.6%), and 22 (34.4%), respectively (P < 0.001). However, the traditional HVPG cutoffs of 10 and 16 mmHg did not improve the discrimination of mortality. In contrast, the mortality rates did differ significantly between the three HS-2 groups (P < 0.05). In the multivariate analysis, all models revealed that HS-2 was a common prognostic factor in predicting mortality. The mortality rates increased significantly according to HS-2 in patients with hypoalbuminemia (HVPG, 13–20 mmHg; hazard ratio [HR], 2.54 and HVPG > 20 mmHg; HR, 5.45) and intermediate model for end-stage liver disease (MELD) score (HVPG, 13–20 mmHg; HR, 3.86 and HVPG > 20 mmHg; HR, 8.77; P < 0.05). CONCLUSION: Categorizing HVPG values according to HS-2 is a useful prognostic modality in patients with portal hypertension and can play an independent role in predicting the prognosis in patients with hypoalbuminemia and an intermediate MELD score.
Discrimination (Psychology)
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Fibrosis
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Follow-Up Studies
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Hemodynamics
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Humans
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Hypertension, Portal
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Hypoalbuminemia
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Liver Diseases
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Mortality
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Multivariate Analysis
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Prognosis
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Retrospective Studies
;
Venous Pressure
7.What Else Is Needed in the Korean Government's Master Plan for People With Developmental Disabilities?
Korean Journal of Preventive Medicine 2019;52(3):200-204
On September 12, 2018, President Jae-In Moon announced the Comprehensive Plan for Lifelong Care for People with Developmental Disabilities, with representatives from the associated government branches (Ministry of Health and Welfare, Ministry of Education, and Ministry of Employment and Labor) in attendance. The goals of this plan are to provide health, medical, rehabilitative, special education, and social welfare services according to the life-stages of the affected individuals; to reduce parental pressure; to promote social interventions; and to enhance community-level participation in order to create a ‘welfare society in harmony.’ However, in order for the plan to succeed, additional efforts must be made in the following areas. First, an epidemiological survey is needed to understand the scale, prevalence, and incidence of developmental disabilities and to establish an evidence base to support policy development. Second, accurate definitions of developmental disabilities must be established in order to avoid policy discrimination based on impairment type and age. Third, personal evaluations to assess disabled individuals' unmet needs and customized service designs to deliver those needs are required. Fourth, the plan must fulfill the goals of accessibility and fairness that the government intends to provide. Fifth, the government should consider an integrated financial support system and to propose a detailed plan for monetary distributions. Finally, an integrated system that links health, medical, employment, educational, and welfare services must be constructed.
Comprehensive Health Care
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Developmental Disabilities
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Discrimination (Psychology)
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Education
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Education, Special
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Employment
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Financial Support
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Humans
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Incidence
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Intellectual Disability
;
Moon
;
Parents
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Policy Making
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Prevalence
;
Social Welfare
8.External Validation of the ELAPSS Score for Prediction of Unruptured Intracranial Aneurysm Growth Risk
Mayte Sánchez VAN KAMMEN ; Jacoba P GREVING ; Satoshi KURODA ; Daina KASHIWAZAKI ; Akio MORITA ; Yoshiaki SHIOKAWA ; Toshikazu KIMURA ; Christophe COGNARD ; Anne C JANUEL ; Antti LINDGREN ; Timo KOIVISTO ; Juha E JÄÄSKELÄINEN ; Antti RONKAINEN ; Liisa PYYSALO ; Juha ÖHMAN ; Melissa RAHI ; Johanna KUHMONEN ; Jaakko RINNE ; Eva L LEEMANS ; Charles B MAJOIE ; W Peter VANDERTOP ; Dagmar VERBAAN ; Yvo B W E M ROOS ; René VAN DEN BERG ; Hieronymus D BOOGAARTS ; Walid MOUDROUS ; Ido R VAN DEN WIJNGAARD ; Laura ten HOVE ; Mario TEO ; Edward J ST GEORGE ; Katharina A M HACKENBERG ; Amr ABDULAZIM ; Nima ETMINAN ; Gabriël J E RINKEL ; Mervyn D I VERGOUWEN
Journal of Stroke 2019;21(3):340-346
BACKGROUND AND PURPOSE: Prediction of intracranial aneurysm growth risk can assist physicians in planning of follow-up imaging of conservatively managed unruptured intracranial aneurysms. We therefore aimed to externally validate the ELAPSS (Earlier subarachnoid hemorrhage, aneurysm Location, Age, Population, aneurysm Size and Shape) score for prediction of the risk of unruptured intracranial aneurysm growth. METHODS: From 11 international cohorts of patients ≥18 years with ≥1 unruptured intracranial aneurysm and ≥6 months of radiological follow-up, we collected data on the predictors of the ELAPSS score, and calculated 3- and 5-year absolute growth risks according to the score. Model performance was assessed in terms of calibration (predicted versus observed risk) and discrimination (c-statistic). RESULTS: We included 1,072 patients with a total of 1,452 aneurysms. During 4,268 aneurysm-years of follow-up, 199 (14%) aneurysms enlarged. Calibration was comparable to that of the development cohort with the overall observed risks within the range of the expected risks. The c-statistic was 0.69 (95% confidence interval [CI], 0.64 to 0.73) at 3 years, compared to 0.72 (95% CI, 0.68 to 0.76) in the development cohort. At 5 years, the c-statistic was 0.68 (95% CI, 0.64 to 0.72), compared to 0.72 (95% CI, 0.68 to 0.75) in the development cohort. CONCLUSIONS: The ELAPSS score showed accurate calibration for 3- and 5-year risks of aneurysm growth and modest discrimination in our external validation cohort. This indicates that the score is externally valid and could assist patients and physicians in predicting growth of unruptured intracranial aneurysms and plan follow-up imaging accordingly.
Aneurysm
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Calibration
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Cohort Studies
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Discrimination (Psychology)
;
Follow-Up Studies
;
Humans
;
Intracranial Aneurysm
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Risk Factors
;
Subarachnoid Hemorrhage
9.The Effects of Olfactory Training with Intranasal Corticosteroid Spray in Korean Patients with Olfactory Dysfunction
Young Do JUNG ; Deok Su KIM ; Byung Jun KANG ; Seung Heon SHIN ; Mi Kyung YE
Journal of Rhinology 2019;26(2):106-112
discrimination, and identification) scoreRESULTS: Olfactory function improved in 74 of 134 patients (55.2%). Etiology of olfactory disorder, sex, and age had statistically significant influence on the improvement rate of olfactory function, among which etiology of olfactory loss was the most important. However, initial severity and duration of olfactory loss had no statistically significant influence on the improvement rate. The TDI score at three months of olfactory training showed remarkable improvement, primarily because of improvements in the discrimination and identification components.CONCLUSION: The present study showed that olfactory training with intranasal corticosteroid was beneficial to improve olfactory function in patients with olfactory dysfunction, particularly in postviral infection patients.]]>
Adult
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Discrimination (Psychology)
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Fluticasone
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Humans
;
Methods
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Odors
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Olfaction Disorders
;
Regeneration
10.Comparing the Effectiveness of Olfactory Training, According as Type and Preference of Odorant
Dong Young KIM ; Jung Ho HA ; Ju Ho LEE ; Hyun Jun KIM ; Do Yang PARK
Journal of Rhinology 2019;26(2):92-98
discrimination, identification score, and subjective VAS score of olfaction. Olfactory testing was performed before and after training for 4 and 12 weeks.RESULTS: There was no demographic difference between the two groups. After olfactory training, the preference group showed statistically significant improvement in threshold, identification, TDI score, and VAS score. Conversely, there was no significant change of olfactory function in the non-preference group.CONCLUSION: Thus, we conclude that odorants of olfactory training should be applied depending on cultural preferences, and that the preferred odorants of each individual patient will have a greater therapeutic effect on olfactory dysfunction compared to non-preferred odorants.]]>
Discrimination (Psychology)
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Humans
;
Methods
;
Odors
;
Precision Medicine
;
Prevalence
;
Prospective Studies
;
Smell

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