1.Management of Long Bone Fractures with Severe Bone Defect.
Jae Woo CHO ; Jinil KIM ; Han Ju KIM ; Jong Keon OH
Journal of the Korean Fracture Society 2015;28(3):205-214
No abstract available.
Fractures, Bone*
2.Should the High Septal Deviation be Corrected to Improve Nasal Obstruction During Septal Surgery?.
Sung Jun HAN ; Hoon OH ; Yong Kyun PARK ; Sang Gi MIN ; Ji Ho SHIN ; Won Wook LEE ; Jinil KIM ; Hyun Jik KIM
Journal of Rhinology 2016;23(2):85-90
BACKGROUND AND OBJECTIVES: High dorsal deflection of the nasal septum around cartilage or the perpendicular plate is technically difficult to correct. The objective of this study was to assess whether correction of high septal deviation during septoplasty is necessary to improve nasal airflow. PATIENTS AND SURGICAL METHOD: Twenty-one patients with high septal deviation around the septal cartilage or the perpendicular plate were included in this study. In order to improve nasal obstruction, septoturbinoplasty was performed, but high septal deviation was not corrected. Subjective and objective improvements were evaluated using the visual analogue scale and acoustic rhinometry 1 month before and 3 months after surgery. RESULTS: After correction of nasal septum deviation except high septal deviation and reduction of turbinate mucosal volume, postoperative nasal volume and minimum cross-sectional area were significantly increased. Subjective symptom scales for nasal obstruction, rhinorrhea, sneezing, and posterior nasal drip were considerably improved after limited septoturbinoplasty in patients who still had high dorsal deflection of the nasal septum. CONCLUSION: Our findings suggest that limited septoturbinoplasty without excessive resection of high dorsal deflection of the nasal septum can improve nasal airflow and reduce subjective symptoms, including nasal obstruction.
Cartilage
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Humans
;
Methods
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Nasal Obstruction*
;
Nasal Septum
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Rhinometry, Acoustic
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Sneezing
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Turbinates
;
Weights and Measures
3.Downregulation of SIRT2 by Chronic Stress Reduces Expression of Synaptic Plasticity-related Genes through the Upregulation of Ehmt2
Sung Eun WANG ; Seung Yeon KO ; Sungsin JO ; Hye Ryeong JO ; Jinil HAN ; Yong Seok KIM ; Hyeon SON
Experimental Neurobiology 2019;28(4):537-546
Silent information regulator 2 (Sirtuin2 / SIRT2) is a NAD⁺-dependent deacetylase that regulates the cellular oxidative stress response. It modulates transcriptional silencing and protein stability through deacetylation of target proteins including histones. Previous studies have shown that SIRT2 plays a role in mood disorders and hippocampus-dependent cognitive function, but the underlying neurobiological mechanism is poorly understood. Here, we report that chronic stress suppresses SIRT2 expression in the hippocampus. Molecular and biochemical analyses indicate that the stress-induced decrease in the SIRT2 expression downregulates synaptic plasticity-related genes in the hippocampus through the increase of euchromatic histone-lysine N-methyltransferase 2 (Ehmt2) (also known as G9a). shRNA-mediated knockdown of SIRT2 in the dentate gyrus alters the expression of synaptic plasticity-related genes in a way similar to those induced by chronic stress, and produces depression-like behaviors. Our results indicate that SIRT2 plays an important role in the response to stress, thereby modulating depression-like behaviors.
Cognition
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Dentate Gyrus
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Depression
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Down-Regulation
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Hippocampus
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Histone-Lysine N-Methyltransferase
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Histones
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Mood Disorders
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Neuronal Plasticity
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Oxidative Stress
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Protein Stability
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Up-Regulation
4.Therapeutic Outcome of Primary Snoring and Mild Obstructive Sleep Apnea and Clinical Suggestion for Treatment Approaches
Seulki SONG ; Yoonjae SONG ; Han Gyeol PARK ; Jinil KIM ; Sung dong CHO ; Jeong Yeon JI ; Young Seok KIM ; Hyun Jik KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2019;62(2):102-107
BACKGROUND AND OBJECTIVES:
The clinical significance and need for the treatment of primary snoring and mild obstructive sleep apnea have been recently questioned. In this study, we analyzed therapeutic outcome and the methods of treatment of such diseases.SUBJECTS AND METHOD: A retrospective review was conducted using the medical records of patients diagnosed with primary snoring or mild obstructive sleep apnea at a single institution from 2013 to 2015 through polysomnography or WATCHPAT.
RESULTS:
Of the 18 patients (37%) with primary snoring, 13 patients (72.2%) underwent surgery, four patients (22.2%) were treated with surgery and mandibular advancement device, and one patient (5.6%) underwent automatic positive airway pressure therapy. Of the 78 patients (61%) with mild obstructive sleep apnea, 35 patients (44.8%) had surgery, 24 patients (30.8%) were treated with mandibular advancement device, 13 patients (16.7%) were treated with surgery and mandibular advancement device and 6 patients (7.7%) received automatic positive airway pressure therapy. For primary snoring, while Epworth Sleepiness Scale and Pittsburg Sleep Quality Index did not improve, the snoring visual analog scale decreased significantly. In patients with mild obstructive sleep apnea, Apnea-Hypopnea Index, snoring decibel, Epworth Sleepiness Scale, and Pittsburg Sleep Quality Index were significantly decreased after treatment and the lowest oxygen saturation was significantly increased after treatment.
CONCLUSION
For primary snoring, the direction of treatment should be determined in accordance with the presence of associated diseases related to sleep disturbance breathing. For mild obstructive sleep apnea, active treatment may be helpful.
5.Therapeutic Outcome of Primary Snoring and Mild Obstructive Sleep Apnea and Clinical Suggestion for Treatment Approaches
Seulki SONG ; Yoonjae SONG ; Han Gyeol PARK ; Jinil KIM ; Sung dong CHO ; Jeong Yeon JI ; Young Seok KIM ; Hyun Jik KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2019;62(2):102-107
BACKGROUND AND OBJECTIVES: The clinical significance and need for the treatment of primary snoring and mild obstructive sleep apnea have been recently questioned. In this study, we analyzed therapeutic outcome and the methods of treatment of such diseases. SUBJECTS AND METHOD: A retrospective review was conducted using the medical records of patients diagnosed with primary snoring or mild obstructive sleep apnea at a single institution from 2013 to 2015 through polysomnography or WATCHPAT. RESULTS: Of the 18 patients (37%) with primary snoring, 13 patients (72.2%) underwent surgery, four patients (22.2%) were treated with surgery and mandibular advancement device, and one patient (5.6%) underwent automatic positive airway pressure therapy. Of the 78 patients (61%) with mild obstructive sleep apnea, 35 patients (44.8%) had surgery, 24 patients (30.8%) were treated with mandibular advancement device, 13 patients (16.7%) were treated with surgery and mandibular advancement device and 6 patients (7.7%) received automatic positive airway pressure therapy. For primary snoring, while Epworth Sleepiness Scale and Pittsburg Sleep Quality Index did not improve, the snoring visual analog scale decreased significantly. In patients with mild obstructive sleep apnea, Apnea-Hypopnea Index, snoring decibel, Epworth Sleepiness Scale, and Pittsburg Sleep Quality Index were significantly decreased after treatment and the lowest oxygen saturation was significantly increased after treatment. CONCLUSION: For primary snoring, the direction of treatment should be determined in accordance with the presence of associated diseases related to sleep disturbance breathing. For mild obstructive sleep apnea, active treatment may be helpful.
Humans
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Mandibular Advancement
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Medical Records
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Methods
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Oxygen
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Polysomnography
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Respiration
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Retrospective Studies
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Sleep Apnea, Obstructive
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Snoring
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Visual Analog Scale
6.Predicting the Response of Neoadjuvant Chemotherapy in Hormone Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative Breast Cancer With Axillary Lymph Node Metastasis by Multigene Assay
Jun-Hee LEE ; Jai Min RYU ; Jee Hyun AHN ; Soo Youn CHO ; Se Kyung LEE ; Jonghan YU ; Byung Joo CHAE ; Seok Jin NAM ; Jinil HAN ; Jeong Eon LEE ; Seok Won KIM
Journal of Breast Cancer 2022;25(6):473-484
Purpose:
The GenesWell™ breast cancer test (BCT) is a recently developed multigene assay that predicts the risk of distant recurrence in patients with hormone receptor-positive (HR+) and human epidermal growth factor-2 negative (HER2−) early breast cancer (BC). The ability of this assay to predict the response to neoadjuvant chemotherapy (NACT) has not been established to date.
Methods:
Biopsy specimens from HR+/HER2− BC patients with axillary lymph node (LN) metastasis who underwent NACT were analyzed using the BCT score. The modified BCT score was developed and patients classified into high-and low-response groups. A total of 88 patients were available for the BCT score among the 108 eligible patients. The median followup duration was 35.9 (7.8–128.5) months.
Results:
Among them, 61 (65.1%) had cN1 and 53 (60.2%) had cT1 or cT2 disease. The BCT score was low in 25 (28.4%) patients and high in 63 (71.6%). Among the 50 patients with pathologic complete response or partial response, 41 (82.0%) were in the high BCT score group and 9 (18.0%) were in the low BCT score group. Among the 38 patients with stable or progressive disease, 22 (57.9%) were in the high BCT score group and 16 (42.1%) were in the low BCT score group (p = 0.025). Ki-67 before NACT was a significant factor for predicting tumor response (p = 0.006; 3.81 [1.50–10.16]). The BCT score showed a significant response to NACT (p = 0.016; 4.18 [1.34–14.28]). Distant metastasis-free survival was significantly different between the high- and low-response groups (p = 0.004).
Conclusion
We demonstrated that the BCT score predicts NACT responsiveness in HR+/ HER2− BC with LN metastasis and might help determine whether NACT should be performed. Further studies are required to validate these results.