1.The palato-gingival groove - anatomical anomaly occurred in maxillary lateral incisors: case reports.
Hyun Il KIM ; Young Shin NOH ; Hoon Sang CHANG ; Hyun Wook RYU ; Kyung San MIN
Journal of Korean Academy of Conservative Dentistry 2007;32(6):483-490
This report describes clinical cases of a palato-gingival groove on a maxillary lateral incisor with associated localized periodontal disease and pulp necrosis. The tooth of the first case was extracted because of severe bone destruction. The palato-gingival groove of the second case was eliminated using a round bur, and the resulting defect was filled with synthetic graft and covered by an absorbable membrane. Both diagnosis and treatment of palato-gingival groove were very difficult and usually extraction of the involved tooth is the treatment of choice, but combined endodontic-periodontic treatment allowed the tooth to be saved.
Dental Pulp Necrosis
;
Diagnosis
;
Incisor*
;
Membranes
;
Periodontal Diseases
;
Tooth
;
Transplants
2.Differential Diagnosis of Breast Mass and Staging of Breast Cancer Using F-18-FDG PET.
Jeong Seok YEO ; Dong Soo LEE ; Keon Wook KANG ; Dong Young NOH ; June Key CHUNG ; Myung Chul LEE
Korean Journal of Nuclear Medicine 1999;33(6):502-511
PURPOSE: F-18-fluorodeoxyglucose (FDG) positron emission tomography (PET) has been proven to be useful in the differential diagnosis of breast mass and staging of breast cancer. This study assessed the diagnostic accuracy of F-18-FDG PET in the differentiation of breast mass and staging of breast cancer. MATERIALS AND METHODS: Total 42 patients who had breast mass underwent F-18-FDG PET (all female, 40+/-10 year old). We compared F-18 FDG PET results with pathologic findings in 24 patients RESULTS: In the differentiation of breast mass, sensitivity and specificity were 95% (19/20) and 77% (7/9) respectively. Three false positive cases were due to inflammation and one false negative patient had small tumor less than 1 cm. In the assessment of axillary lymph node status, sensitivity and specificity were 73% (8/11) and 100% (7/7) respectively. We found distant metastasis that were not suspected before F-18-FDG PET in 2 patients. CONCLUSION: F-18-FDG PET shows good diagnostic performance in differentiation of breast mass and staging of breast cancer.
Breast Neoplasms*
;
Breast*
;
Diagnosis, Differential*
;
Female
;
Humans
;
Inflammation
;
Lymph Nodes
;
Neoplasm Metastasis
;
Positron-Emission Tomography
;
Sensitivity and Specificity
3.Arthroscopic Repair of Combined Rotator Cuff Tears Involving the Subscapularis Tendon.
Young Kyu KIM ; Dong Wook KIM ; Young Tae NOH ; Sang Bok LEE
The Journal of the Korean Orthopaedic Association 2010;45(5):392-398
PURPOSE: Subscapularis tendon tears associated with supraspinatus tendon tears are often found during rotator cuff repair. However, there have been only a few reports about both subscapularis and rotator cuff repair. The authors conducted arthroscopic repair for cuff tear associated with subscapularis tendon tear and assessed its outcomes. MATERIALS AND METHODS: We evaluated 320 cases of arthroscopic repair following rotator cuff tear between June 2006 and January 2009 at Gil Medical Center. Out of 66 cases (21%) associated with subscapularis tear, forty cases of bone to tendon repair using suture anchor were selected except for 26 cases of tendon to tendon repair. Clinical outcomes of 25 cases followed up for over a year were finally assessed. Clinical outcomes were evaluated using the following measures: range of shoulder motion, muscle strength, belly press test, Visual Analogue Scale (VAS) on pain, and University of California Los Angeles (UCLA) score. RESULTS: The average VAS pain scale improved from 5.3 preoperatively to 1.4 postoperatively. Internal rotation strength increased from its preoperative level, 4.1 to 4.2 in postoperative 6 months and to 4.6 at last follow-up. Range of internal rotation increased from the second lumbar level at postoperative 6 months to the 11th thoracic level at last follow-up. UCLA score had significantly improved from 17.4 to 30.8 (p<0.05). CONCLUSION: It is recommended that concurrent repair of the subscapularis tendon during rotator cuff repair for a satisfactory treatment result.
California
;
Follow-Up Studies
;
Los Angeles
;
Muscle Strength
;
Rotator Cuff
;
Shoulder
;
Suture Anchors
;
Tendons
4.Pectolinarin Against Amyloid-beta-induced Neuroinflammation and Apoptosis In vitro
Mei Tong HE ; Byeong Wook NOH ; Hyun Young KIM ; Ah Young LEE ; Eun Ju CHO
Natural Product Sciences 2024;30(4):254-261
An excess of amyloid beta (Aβ) led to a rise in ROS production, which in turn caused inflammatory reactions and mitochondrial dysfunction, both of which accelerate the progression of Alzheimer’s disease (AD).Natural flavonoids are proposed as possible agents for neurodegeneration. Pectolinarin is an important flavone mainly found in Cirsium species. In this study, we explored the potential neuroprotective effect of pectolinarin in Aβ25-35 -induced SH-SY5Y cells. The result demonstrated that pectolinarin enhanced cell viability. Pectolinarin treatment inhibited Aβ25-35 -induced ROS generation. Pectolinarin also suppressed NO generation by inhibiting the translocation of NF-ĸB and downregulating protein expression of iNOS and COX-2. Moreover, the expression of Bcl-2 increased while BAX protein decreased when the cells were exposed to pectolinarin, resulting in a decrease in the BAX/Bcl-2 ratio. Pectolinarin treatment also increased BDNF and its receptor TrkB protein expression. In conclusion, pectolinarin neuroprotected Aβ25-35 -induced inflammation and apoptosis. These findings suggest that pectolinarin may be a promising neuroprotective functional food in the protection of the neurodegenerative diseases, including AD.
5.Pectolinarin Against Amyloid-beta-induced Neuroinflammation and Apoptosis In vitro
Mei Tong HE ; Byeong Wook NOH ; Hyun Young KIM ; Ah Young LEE ; Eun Ju CHO
Natural Product Sciences 2024;30(4):254-261
An excess of amyloid beta (Aβ) led to a rise in ROS production, which in turn caused inflammatory reactions and mitochondrial dysfunction, both of which accelerate the progression of Alzheimer’s disease (AD).Natural flavonoids are proposed as possible agents for neurodegeneration. Pectolinarin is an important flavone mainly found in Cirsium species. In this study, we explored the potential neuroprotective effect of pectolinarin in Aβ25-35 -induced SH-SY5Y cells. The result demonstrated that pectolinarin enhanced cell viability. Pectolinarin treatment inhibited Aβ25-35 -induced ROS generation. Pectolinarin also suppressed NO generation by inhibiting the translocation of NF-ĸB and downregulating protein expression of iNOS and COX-2. Moreover, the expression of Bcl-2 increased while BAX protein decreased when the cells were exposed to pectolinarin, resulting in a decrease in the BAX/Bcl-2 ratio. Pectolinarin treatment also increased BDNF and its receptor TrkB protein expression. In conclusion, pectolinarin neuroprotected Aβ25-35 -induced inflammation and apoptosis. These findings suggest that pectolinarin may be a promising neuroprotective functional food in the protection of the neurodegenerative diseases, including AD.
6.Pectolinarin Against Amyloid-beta-induced Neuroinflammation and Apoptosis In vitro
Mei Tong HE ; Byeong Wook NOH ; Hyun Young KIM ; Ah Young LEE ; Eun Ju CHO
Natural Product Sciences 2024;30(4):254-261
An excess of amyloid beta (Aβ) led to a rise in ROS production, which in turn caused inflammatory reactions and mitochondrial dysfunction, both of which accelerate the progression of Alzheimer’s disease (AD).Natural flavonoids are proposed as possible agents for neurodegeneration. Pectolinarin is an important flavone mainly found in Cirsium species. In this study, we explored the potential neuroprotective effect of pectolinarin in Aβ25-35 -induced SH-SY5Y cells. The result demonstrated that pectolinarin enhanced cell viability. Pectolinarin treatment inhibited Aβ25-35 -induced ROS generation. Pectolinarin also suppressed NO generation by inhibiting the translocation of NF-ĸB and downregulating protein expression of iNOS and COX-2. Moreover, the expression of Bcl-2 increased while BAX protein decreased when the cells were exposed to pectolinarin, resulting in a decrease in the BAX/Bcl-2 ratio. Pectolinarin treatment also increased BDNF and its receptor TrkB protein expression. In conclusion, pectolinarin neuroprotected Aβ25-35 -induced inflammation and apoptosis. These findings suggest that pectolinarin may be a promising neuroprotective functional food in the protection of the neurodegenerative diseases, including AD.
7.Pectolinarin Against Amyloid-beta-induced Neuroinflammation and Apoptosis In vitro
Mei Tong HE ; Byeong Wook NOH ; Hyun Young KIM ; Ah Young LEE ; Eun Ju CHO
Natural Product Sciences 2024;30(4):254-261
An excess of amyloid beta (Aβ) led to a rise in ROS production, which in turn caused inflammatory reactions and mitochondrial dysfunction, both of which accelerate the progression of Alzheimer’s disease (AD).Natural flavonoids are proposed as possible agents for neurodegeneration. Pectolinarin is an important flavone mainly found in Cirsium species. In this study, we explored the potential neuroprotective effect of pectolinarin in Aβ25-35 -induced SH-SY5Y cells. The result demonstrated that pectolinarin enhanced cell viability. Pectolinarin treatment inhibited Aβ25-35 -induced ROS generation. Pectolinarin also suppressed NO generation by inhibiting the translocation of NF-ĸB and downregulating protein expression of iNOS and COX-2. Moreover, the expression of Bcl-2 increased while BAX protein decreased when the cells were exposed to pectolinarin, resulting in a decrease in the BAX/Bcl-2 ratio. Pectolinarin treatment also increased BDNF and its receptor TrkB protein expression. In conclusion, pectolinarin neuroprotected Aβ25-35 -induced inflammation and apoptosis. These findings suggest that pectolinarin may be a promising neuroprotective functional food in the protection of the neurodegenerative diseases, including AD.
8.Pectolinarin Against Amyloid-beta-induced Neuroinflammation and Apoptosis In vitro
Mei Tong HE ; Byeong Wook NOH ; Hyun Young KIM ; Ah Young LEE ; Eun Ju CHO
Natural Product Sciences 2024;30(4):254-261
An excess of amyloid beta (Aβ) led to a rise in ROS production, which in turn caused inflammatory reactions and mitochondrial dysfunction, both of which accelerate the progression of Alzheimer’s disease (AD).Natural flavonoids are proposed as possible agents for neurodegeneration. Pectolinarin is an important flavone mainly found in Cirsium species. In this study, we explored the potential neuroprotective effect of pectolinarin in Aβ25-35 -induced SH-SY5Y cells. The result demonstrated that pectolinarin enhanced cell viability. Pectolinarin treatment inhibited Aβ25-35 -induced ROS generation. Pectolinarin also suppressed NO generation by inhibiting the translocation of NF-ĸB and downregulating protein expression of iNOS and COX-2. Moreover, the expression of Bcl-2 increased while BAX protein decreased when the cells were exposed to pectolinarin, resulting in a decrease in the BAX/Bcl-2 ratio. Pectolinarin treatment also increased BDNF and its receptor TrkB protein expression. In conclusion, pectolinarin neuroprotected Aβ25-35 -induced inflammation and apoptosis. These findings suggest that pectolinarin may be a promising neuroprotective functional food in the protection of the neurodegenerative diseases, including AD.
9.Role of High-Resolution Magnetic Resonance Imaging in the Diagnosis of Primary Angiitis of the Central Nervous System.
Hyun Jin NOH ; Jin Wook CHOI ; Jun Pyo KIM ; Gyeong Joon MOON ; Oh Young BANG
Journal of Clinical Neurology 2014;10(3):267-271
BACKGROUND: Primary angiitis of the central nervous system (PACNS) is a rare disorder and is often difficult to diagnose due to the lack of a confirmatory test. PACNS can generally be diagnosed based on typical angiographic findings. We describe herein a patient diagnosed with PACNS despite the presence of normal findings on conventional angiography. CASE REPORT: A 44-year-old man with a recent history of ischemic stroke in the right posterior cerebral artery territory developed acute-onset vertigo. Diffusion-weighted imaging revealed an acute infarction within the left posterior inferior cerebellar artery. His medical history was unremarkable except for hyperlipidemia; the initial examination revealed mild gait imbalance. During the 10 days of hospital admission, the patient experienced four recurrent ischemic strokes within the posterior circulation territory (occipital lobe, pons, and cerebellum). He was diagnosed with recurrent cerebral infarctions due to PACNS. The basilar artery exhibited no demonstrable luminal stenosis, but there were direct imaging signs of central nervous system angiitis including wall thickening and contrast enhancement. High-dose intravenous steroid therapy followed by oral prednisolone was administered. There was no further stroke recurrence and follow-up imaging of the arterial walls showed normalization of their characteristics. CONCLUSIONS: The present case emphasizes the importance of wall imaging in the diagnosis and treatment of PACNS.
Adult
;
Angiography
;
Arteries
;
Basilar Artery
;
Central Nervous System*
;
Cerebral Infarction
;
Constriction, Pathologic
;
Diagnosis*
;
Follow-Up Studies
;
Gait
;
Humans
;
Hyperlipidemias
;
Infarction
;
Inflammation
;
Magnetic Resonance Imaging*
;
Phenobarbital
;
Pons
;
Posterior Cerebral Artery
;
Prednisolone
;
Recurrence
;
Stroke
;
Vasculitis*
;
Vasculitis, Central Nervous System
;
Vertigo
10.Acute Eosinophilic Pneumonia Associated with Amitriptyline in a Hemodialysis Patient.
Hyunjin NOH ; Young Kyu LEE ; Shin Wook KANG ; Kyu Hun CHOI ; Dae Suk HAN ; Ho Yung LEE
Yonsei Medical Journal 2001;42(3):357-359
Drugs are well known causes of eosinophilic lung disease. In many patients, drug-induced eosinophilic lung disease presents with transient eosinophilic infiltrates that disappear after discontinuation of the drug. Some patients, however, experience a fulminant, acute eosinophilia-like disease. Recently, we experienced a case of amitriptyline-associated acute eosinophilic pneumonia with respiratory failure in a diabetic hemodialysis patient. Eight days after treatment with amitriptyline, sudden fever, chill, dry cough and dyspnea developed. Subsequently, multiple patch consolidations appeared on the chest radiographs. Bronchoalveolar lavage (BAL), established a diagnosis of acute eosinophilic pneumonia. After immediate discontinuation of amitriptyline, a rapid clinical and radiological improvement was observed. The present case indicates that the possibility of acute eosinophilic pneumonia should be fully considered in dialysis patients developing unexplained respiratory symptoms while on amitriptyline therapy.
Acute Disease
;
Adult
;
Amitriptyline/*adverse effects
;
Antidepressive Agents, Tricyclic/*adverse effects
;
Female
;
Human
;
Pulmonary Eosinophilia/*etiology
;
*Renal Dialysis