1.Upregulation of the Vitamin D Receptor in the Nasal Mucosa of Patients With Allergic Rhinitis
Hyeon Geun KIM ; Da Bin LEE ; Tae Hoon LEE ; Bo Yoon CHOI ; Mun Soo HAN ; Sang Hag LEE ; Tae Hoon KIM
Journal of Rhinology 2021;28(3):141-146
Background and Objectives:
Vitamin D modulates immunity, including that of allergic diseases, and plays its roles through contact with vitamin D receptors (VDR). Recent studies have shown that patients with allergic rhinitis have low systemic serum vitamin D level. However, the expression of VDR in local tissue such as human nasal mucosa has not been investigated. Our study demonstrated that, in nasal mucosa of normal controls and patients with allergic rhinitis.
Materials and Methods:
Nasal mucosa were harvested from twenty-five patients who had normal nasal mucosa and twenty-five patients with allergic rhinitis. After the total RNA isolation, we performed reverse transcriptase-polymerase chain reaction, immunohistochemical staining and western blot analysis.
Results:
VDR were expressed in submucosal glands and the superficial layer of epithelial cell, and that inflammatory cells are expressed more highly in the nasal mucosa of patients with allergic rhinitis compared to those without. In the mucosa of patients with allergic rhinitis, VDR expression level was upregulated compared to that in normal nasal mucosa.
Conclusion
This findings suggest that VDR plays a role in the pathogenesis of allergic rhinitis. Additional research is needed to determine the mechanism and consequences of VDR upregulation.
2.Distinct Neural Correlates of Executive Function by Amyloid Positivity and Associations with Clinical Progression in Mild Cognitive Impairment
Hyung Jun YOON ; Seung Gon KIM ; Sang Hoon KIM ; IL Han CHOO ; Sang Hag PARK ; Eun Hyun SEO ;
Yonsei Medical Journal 2019;60(10):935-943
PURPOSE: This study aimed to identify the neural basis of executive function (EF) in amnestic mild cognitive impairment (aMCI) according to beta-amyloid (Aβ) positivity. Furthermore, we explored if the identified brain areas could serve as predictors for clinical progression. MATERIALS AND METHODS: We included individuals with aMCI using data from [¹⁸F]-florbetapir-positron emission tomography (PET), fluorodeoxyglucose-PET, and EF scores, as well as follow-up clinical severity scores at 1 and 5 years from baseline from the Alzheimer's Disease Neuroimaging Initiative database. The correlations between EF score and regional cerebral glucose metabolism (rCMglc) were analyzed separately for aMCI with low Aβ burden (aMCI Aβ−, n=230) and aMCI with high Aβ burden (aMCI Aβ+, n=268). Multiple linear regression analysis was conducted to investigate the associations between rCMglc and clinical progression. RESULTS: Longitudinal courses differed between aMCI Aβ− and aMCI Aβ+ groups. On average, aMCI Aβ− subjects maintained their level of clinical severity, whereas aMCI Aβ+ subjects showed progression. EF impairment in aMCI Aβ− was related to the anterior cingulate cortex (ACC), whereas that in aMCI Aβ+ was related to Alzheimer's Disease-vulnerable brain regions. ACC and the posterior cingulate cortex were associated with clinical progression in aMCI Aβ− and aMCI Aβ+, respectively. CONCLUSION: Our findings suggest that although MCI subjects showed similar behavioral phenotypes at the time of diagnosis, EF and further progression were associated with different brain regions according to Aβ burden. Clarification of the etiologies and nature of EF impairment in aMCI are critical for disease prognosis and management.
Alzheimer Disease
;
Amyloid
;
Brain
;
Cognition
;
Diagnosis
;
Executive Function
;
Follow-Up Studies
;
Glucose
;
Gyrus Cinguli
;
Linear Models
;
Metabolism
;
Mild Cognitive Impairment
;
Neuroimaging
;
Phenotype
;
Positron-Emission Tomography
;
Prognosis
3.Independent and Interactive Influences of the APOE Genotype and Beta-Amyloid Burden on Cognitive Function in Mild Cognitive Impairment.
Eun Hyun SEO ; Sang Hoon KIM ; Sang Hag PARK ; Seong Ho KANG ; IL Han CHOO
Journal of Korean Medical Science 2016;31(2):286-295
This study aimed to investigate the independent and interactive influences of apolipoprotein E (APOE) epsilon4 and beta-amyloid (Abeta) on multiple cognitive domains in a large group of cognitively normal (CN) individuals and patients with mild cognitive impairment (MCI) and Alzheimer's disease (AD). Participants were included if clinical and cognitive assessments, amyloid imaging, and APOE genotype were all available from the Alzheimer's Disease Neuroimaging Initiative database (CN = 324, MCI = 502, AD = 182). Individuals with one or two copies of epsilon4 were designated as APOE epsilon4 carriers (epsilon4+); individuals with no epsilon4 were designated as APOE epsilon4 non-carriers (epsilon4-). Based on mean florbetapir standard uptake value ratios, participants were classified as Abeta burden-positive (Abeta+) or Abeta burden-negative (Abeta-). In MCI, APOE epsilon4 effects were predominantly observed on frontal executive function, with epsilon4+ participants exhibiting poorer performances; Abeta positivity had no influence on this effect. Abeta effects were observed on global cognition, memory, and visuospatial ability, with Abeta+ participants exhibiting poorer performances. Measures of frontal executive function were not influenced by Abeta. Interactive effects of APOE epsilon4+ and Abeta were observed on global cognition and verbal recognition memory. Abeta, not APOE epsilon4+, influenced clinical severity and functional status. The influences of APOE epsilon4+ and Abeta on cognitive function were minimal in CN and AD. In conclusion, we provide further evidence of both independent and interactive influences of APOE epsilon4+ and Abeta on cognitive function in MCI, with APOE epsilon4+ and Abeta showing dissociable effects on executive and non-executive functions, respectively.
Aged
;
Aged, 80 and over
;
Alzheimer Disease/genetics/pathology
;
Amyloid beta-Peptides/*metabolism
;
Aniline Compounds/chemistry
;
Apolipoprotein E4/*genetics
;
Brain/radiography
;
Cognition
;
Databases, Factual
;
Demography
;
Ethylene Glycols/chemistry
;
Female
;
Genotype
;
Humans
;
Male
;
Mild Cognitive Impairment/genetics/*pathology
;
Positron-Emission Tomography
4.Psychiatric Symptoms in Temporal Lobe Epilepsy with Left Mesial Hippocampal Sclerosis.
Hyun JANG ; Sang Hoon KIM ; Sang Hag PARK ; Il Han CHOO ; Seung Gon KIM
Psychiatry Investigation 2015;12(2):274-277
A 16-year-old woman was referred to us for depression and persistent suicidal and homicidal ideation. From 2010, the patient visited a neurologist due to recurrent grand mal epilepsy, auditory and visual hallucinations, episodic memory loss, and persistent depression. Upon admission, it was revealed through clinical history taking that she had suffered from chronic bullying from same-sex peers and sexual abuse, twice, from an adult male in the neighborhood when she was 10 years old. A brain magnetic resonance imaging study showed left mesial hippocampal sclerosis. The patient exhibited improvement of her psychiatric symptoms after treatment with a combination of fluoxetine (30 mg) and aripiprazole (10 mg). Children and adolescents with epilepsy experience conflicts in the family, challenges at school, stigma, and psychosocial limitations or deprivations due to their comorbid psychiatric symptoms and hence, psychiatric evaluation and early intervention is important when treating these patients.
Adolescent
;
Adult
;
Brain
;
Bullying
;
Child
;
Depression
;
Early Intervention (Education)
;
Epilepsy
;
Epilepsy, Temporal Lobe*
;
Epilepsy, Tonic-Clonic
;
Female
;
Fluoxetine
;
Hallucinations
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Memory, Episodic
;
Residence Characteristics
;
Sclerosis*
;
Sex Offenses
;
Suicidal Ideation
;
Aripiprazole
5.Antiallergic Effects of Trichostatin A in a Murine Model of Allergic Rhinitis.
Jung Sun CHO ; Ju Hyung KANG ; In Hye HAN ; Ji Young UM ; Il Ho PARK ; Sang Hag LEE ; Heung Man LEE
Clinical and Experimental Otorhinolaryngology 2015;8(3):243-249
OBJECTIVES: Trichostatin A (TSA), an inhibitor of histone deacetylase, has been shown to play an important role in attenuating asthmatic inflammation. However, the effect of TSA in allergic rhinitis is not known. The aims of this study were to investigate the effect of TSA on allergic nasal inflammation and on the induction of regulatory T cells in a murine model of allergic rhinitis. METHODS: BALB/c mice were sensitized intraperitoneally with ovalbumin (OVA) and then challenged intranasally with OVA. TSA (1 mg/kg) was given to the treatment group, and multiple parameters of allergic responses were evaluated to determine the effects of TSA on allergic rhinitis. Allergic nasal symptom scores, including frequency of rubbing and sneezing, were checked. Eosinophil infiltrations were stained with Chromotrope 2R, and the expression levels of OVA-specific IgE, T-helper 1 (Th1) cytokine (interferon-gamma [IFN-gamma]), Th2 cytokines (interleukin [IL] 4 and IL-5) and Treg (Foxp3, IL-10, and transforming growth factor-beta [TGF-beta]) were measured by quantitative reverse transcription-polymerase chain reaction or enzyme-linked immunosorbent assay. RESULTS: TSA reduced the scores of allergic nasal symptoms and the amount of eosinophil infiltration into the nasal mucosa. TSA suppressed OVA-specific IgE levels and reduced expression of the IL-4 and IL-5. However, the expression of IFN-gamma was unchanged in the treatment group. The levels of Foxp3, IL-10, and TGF-beta were increased in pretreatment with TSA as compared to control group. CONCLUSION: This study shows that TSA induced antiallergic effects by decreasing eosinophilic infiltration and Th2 cytokines in a murine model of allergic rhinitis via regulation of Tregs. Thus, TSA may be considered a potentially therapeutic agent in treating allergic rhinitis.
Animals
;
Cytokines
;
Enzyme-Linked Immunosorbent Assay
;
Eosinophils
;
Histone Deacetylases
;
Immunoglobulin E
;
Inflammation
;
Interleukin-10
;
Interleukin-4
;
Interleukin-5
;
Mice
;
Nasal Mucosa
;
Ovalbumin
;
Ovum
;
Rhinitis*
;
Sneezing
;
T-Lymphocytes, Regulatory
;
Transforming Growth Factor beta
6.Psychiatric Characteristics According to Tinnitus Severity.
Jae Hong KIM ; Jung Ho KIM ; Sung Il CHO ; Sang Hag PARK ; Sang Hoon KIM ; Il Han CHOO ; Seung Gon KIM
Journal of the Korean Society of Biological Psychiatry 2015;22(1):7-13
OBJECTIVES: The purpose of this study was to examine the psychiatric characteristics of outpatients with tinnitus. METHODS: A total of 88 subjects were included in this study. According to Tinnitus Handicap Inventory (THI) scores, the subjects were classified into two group ; a mild tinnitus symptoms (mild-tinnitus) group and a severe tinnitus symptoms (severe-tinnitus) group. A questionnaire was used for an assessment of demographic characteristics, and the THI, the Visual Analogue Scale (VAS) about tinnitus, the Beck Depression Inventory (BDI), and the Beck Anxiety Inventory (BAI) are applied for evaluation of other clinical psychiatric characteristics. RESULTS: Higher THI scores were positively correlated with tinnitus course, the number of accompanying symptoms, and the VAS. BDI total scores, BDI factors, and BAI total scores were significantly higher in the severe-tinnitus group than in the mild-tinnitus group. Also suicidal ideation, interpersonal problems, sleep problems, occupational impairment, and fatigue were significantly higher in the severe-tinnitus group than in the mild-tinnitus group. CONCLUSIONS: Tinnitus is a common disorder of hearing which is associated frequently with psychiatric problems. This study suggests that psychiatric interventions should be taken into consideration in the treatment of patients suffering from tinnitus.
Anxiety
;
Depression
;
Fatigue
;
Hearing
;
Humans
;
Outpatients
;
Suicidal Ideation
;
Tinnitus*
7.Electroconvulsive Therapy in a Case of Gender Dysphoria Patient with Severe Mood Dysregulation and Suicidal Ideation.
Jae Hong KIM ; Sang Hoon KIM ; Sang Hag PARK ; Il Han CHOO ; Seung Gon KIM
Journal of Korean Neuropsychiatric Association 2014;53(1):54-57
Gender dysphoria is very rare, but has frequent psychiatric comorbidity. In addition, risk of suicide is higher in patients with gender dysphoria than for the general population. Treatment of gender dysphoria is not determined, and more aggressive treatment is required for patients with suicidal ideation. No case involving electroconvulsive therapy of a gender dysphoria patient has been reported in South Korea. We discuss a 24 year-old man given electroconvulsive therapy for gender dysphoria with severe mood dysregulation and suicidal ideation.
Comorbidity
;
Electroconvulsive Therapy*
;
Humans
;
Republic of Korea
;
Suicidal Ideation*
;
Suicide
;
Young Adult
8.Violence Frequency by Sexual Assault Characteristics.
Jung In PARK ; Il Han CHOO ; Seung Gon KIM ; Sang Hag PARK ; Woon Yeong PARK ; Gyoung Hwa HWANG ; Sang Hoon KIM
Journal of Korean Neuropsychiatric Association 2013;52(5):360-364
OBJECTIVES: Sexual assaults are increasing in the world. They are frequently associated with violence of verbal or physical force and threat. The aim of this study is to investigate frequency of violence according to characteristics of sexual assault. METHODS: Eighty two female sexual assault victims were referred to the psychiatric clinic from Gwangju One-Stop Service Center between Sep. 4, 2006 and Dec. 31, 2012. We compared the frequency of violence, including verbal or physical force and threat according to characteristics of sexual assault : sexual assault type ; relationship with perpetrator ; time lag to visit one-stop center ; assault location. RESULTS: According to the results, 58.5% (n=48) of subjects had experienced violence before the sexual assaults. Compared to rape (50.9%), indecent (76.0%) showed more frequent violence ; and stranger assailant (81.8%) showed greater frequency of violence than acquaintance (50.0%). Victims who visited the One-stop center within 24 hours (76.7%) had greater exposure to violence than those who visited after 24 hours (48.1%). Regarding assault location, violence frequency was higher in other locations (65.7%) than in accommodations (26.7%). CONCLUSION: Our results suggest that frequency of violence before sexual assaults could be influenced by their characteristics.
Female
;
Humans
;
Rape
;
Violence*
9.Ulnar Shortening Osteotomy for the Treatment of Ulnar Impaction Syndrome.
Jae Cheol PARK ; Yoo Joon SUR ; Seung Koo RHEE ; Seok Whan SONG ; Sang Myung LEE ; Sang Hag HAN
Journal of the Korean Society for Surgery of the Hand 2009;14(4):172-178
PURPOSE: To compare the clinical outcomes of the ulnar shortening osteotomy alone and the ulnar shortening osteotomy with arthroscopic debridement in the idiopathic ulnar impaction syndrome with positive ulnar variance. MATERIALS AND METHODS: Twenty seven cases, who underwent the ulnar shortening osteotomy with or without arthroscopic debridement for treatment of the idiopathic ulnar impaction syndrome with positive ulnar variance, were included. The mean age was 40.3 years (range, 21 to 63 years) and the mean follow-up period was 20.6 months (range, 12 to 60 months). The ulnar shortening osteotomy alone and the ulnar shortening osteotomy with arthroscopic debridement were performed in 14 and 13 cases respectively. Pre- and postoperative functional results of the wrist were evaluated by the modified Mayo wrist score. RESULTS: The ulnar variance was corrected from 4.61 mm (range, 1.8~10 mm) to -0.06 mm (range, -3.3~3.1 mm) in the ulnar shortening osteotomy alone group and from 3.01 mm (range, 1.2~7.6 mm) to -0.74 mm (range, -1.8~0 mm) in the ulnar shortening osteotomy with arthroscopic debridement group. The final results of the ulnar shortening osteotomy alone were excellent in 4 cases, good in 5 cases, and fair in 5 cases. Those of the ulnar shortening osteotomy with arthroscopic debridement group were excellent in 6 cases, good in 2 cases, fair in 1 case, and poor in 2 cases. The modified Mayo wrist score at the last follow-up were 83.57(range, 75~100) in the ulnar shortening osteotomy alone group and 83.35(range, 40~100) in the ulnar shortening osteotomy with arthroscopic debirdement group. No statistically significant difference was demonstrated between two groups (p=0.43). CONCLUSION: The ulnar shortening osteotomy is valuable treatment for the idiopathic ulnar impaction syndrome with positive ulnar variance. The combined arthroscopic debridment does not appear to have positive influence to the final results.
Debridement
;
Follow-Up Studies
;
Osteotomy
;
Wrist
10.The prenatal care and delivery in a pregnant woman complicated by hereditary sideroblastic anemia.
Geon Young LEE ; Young Sim LEE ; In Bai CHUNG ; Sang Hag LEE ; Byung Wook KIM ; Hyuk Dong HAN ; Young Jin LEE
Korean Journal of Obstetrics and Gynecology 2001;44(9):1744-1760
Anemia is the one of the most common complications among pregnant women, but sideroblastic anemia is very rare condition. The sideroblastic anemias have diverse etiologies but have in common an impaired biosynthesis of heme in the erythroid cells of the marrow. The ringed sideroblasts in the bone marrow aspirate is diagnostic hallmark of sideroblastic anemia. We report here a prenatal care and delivery in a pregnant woman complicated by hereditary sideroblastic anemia. This patient was treated with 200mg of pyridoxine per day during entire pregnancy period and further more, 4mg of oral folate per day was supplemented because concomitant folate deficiency is frequent in case of erythroid hyperplasia. Intermittently, the transfusions of packed red blood cells were required to maintain the hemoglobin level in the 9 to 10gm/dl range. We have experienced healthy maternal and perinatal outcome.
Anemia
;
Anemia, Sideroblastic*
;
Bone Marrow
;
Erythrocytes
;
Erythroid Cells
;
Female
;
Folic Acid
;
Heme
;
Humans
;
Hyperplasia
;
Pregnancy
;
Pregnant Women*
;
Prenatal Care*
;
Pyridoxine

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