1.A case of implant-supported removable partial denture in a patient with mandibular unilateral residual tooth
Ji San BACK ; Keun-Woo LEE ; Yong-Sang LEE ; Joo-Hyuk BANG ; Hee-Won JANG ; Seong-A KIM
The Journal of Korean Academy of Prosthodontics 2022;60(1):19-28
In removable partial dentures, abutment teeth are essential for support, maintenance, and stability of partial dentures, and are an important factor in the fabrication of functional dentures. If the number of periodontally sound abutments is sufficient and they are located on both sides, it will be easy to manufacture functional dentures with good support, maintenance, and stability. But on the contrary, if the number of teeth is insufficient or if they are located on one side, it is biomechanically disadvantageous and relatively difficult to make functional denture. On the other hand, recently, implant-supported removable dentures, which reinforce the three elements of maintenance, support, and stability by using implant surveyed crown, have been frequently selected as treatment plans.In particular, by adding an implant surveyed crown when only a small number of residual teeth remain, mastication efficiency, esthetics, patient comfort, and pronunciation can be improved. In this case, bilateral posterior extension partial denture was fabricated using implant surveyed crown as abutments by placing implants in the premolars area opposite to the residual tooth unilaterally in the mandible. As a result, the asymmetry of the abutment was resolved, and the maintenance and stability of the denture was achieved.
2.Recombinant Rv0753c Protein of Mycobacterium tuberculosis Induces Apoptosis Through Reactive Oxygen Species-JNK Pathway in Macrophages
Kang-In LEE ; Seunga CHOI ; Han-Gyu CHOI ; Sintayehu Gurmessa KEBEDE ; Thi Binh DANG ; Yong Woo BACK ; Hye-Soo PARK ; Hwa-Jung KIM
Journal of Bacteriology and Virology 2020;50(4):246-256
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), remains one of the most important infectious diseases worldwide. Mtb and its culture filtrates or sonic extracts induce apoptosis in macrophages. However, there is a little known about Mtb components that modulate apoptosis and their regulating mechanism. We identified Rv0753c protein with apoptotic potential through searching the biologic active proteins from the multidimensional fractions of Mtb culture filtrate. Here, we investigated the apoptotic effects of Rv0753c on RAW264.7 cells. The recombinant Rv0753c induced RAW264.7 cells apoptosis in a caspase-9-dependent manner. Dissipation of the mitochondrial transmembrane potential (ΔΨ m ), mitochondrial translocation of Bax, and release of cytochrome c from mitochondria were observed in macrophages treated with Rv0753c. Enhanced reactive oxygen species (ROS) production was required for Rv0753c-mediated apoptosis. Furthermore, ROS-mediated JNK activation was major signaling pathway for Rv0753c-induced apoptosis. Moreover, Rv0753c-mediated apoptosis is dependent on TLR4. Altogether, these results suggest that Rv0753c induce apoptosis through ROS-JNK signaling pathway in RAW264.7 cells.
3.Microsurgical treatment for the recurrent cerebral aneurysm initially treated using coil embolization
Juwhan LEE ; Sung-Tae KIM ; Yong Woo SHIM ; Jin Wook BACK ; Jung Hae KO ; Won Hee LEE ; Sung Hwa PAENG ; Se Young PYO ; Young Jin HEO ; Hae Woong JEONG ; Young Gyun JEONG
Journal of Cerebrovascular and Endovascular Neurosurgery 2020;22(3):165-175
Objective:
Microsurgical treatment could be a good alternative for the treatment of recurrent cerebral aneurysm after coil embolization. The purpose of this study was to present our experience of microsurgical treatment for recurrent cerebral aneurysm previously treated using coil embolization.
Methods:
From June 2012 to May 2019, 34 patients consecutively received microsurgical treatment for a recurrent cerebral aneurysm previously treated using coil embolization after it ruptured.
Results:
Of the 34 patients with aneurysm, 33 had the aneurysm located in the anterior circulation. The most common location was the anterior communicating artery (13 cases). Immediate radiologic outcome at coil embolization was completed (n=6), residual neck (n=26), and residual sac (n=2). The reason for microsurgical treatment included rebleeding (n=12), persistent residual sac (n=1), and recurrence on follow-up study (n=21). Rebleeding occurred within 10 days after coil embolization in 10 cases, and the other 2 were due to regrowth. In the 20 recurred and saccular aneurysms, coil compaction was present in 11 aneurysms and regrowth in 9 aneurysms. Simple neck clipping (n=29) and clipping with coil mass extraction (n=3) was possible in the saccular aneurysms. The blood blister like aneurysm (n=2) were treated using bypass and endovascular internal carotid artery trapping. In the follow-up study group after microsurgical treatment there were no severe complications due to the treatment. Age, cause of retreatment, and modified Rankin Scale before microsurgery were associated with good outcome (p<0.001).
Conclusions
Microsurgical treatment may be a viable and effective option for treating recurrent aneurysms previously treated by endovascular techniques.
4.A Case of Hepatocellular Carcinoma with Pulmonary Metastasis Who Showed Complete Response by Cytotoxic Chemotherapy after Sorafenib Failure.
Hwa Sun PARK ; Jae Young JANG ; Min Young BAEK ; Yong Kwon KIM ; Hyun Jin YOUN ; Su Young BACK ; Soung Won JEONG ; Sae Hwan LEE ; Sang Gyune KIM ; Sang Woo CHA ; Young Seok KIM ; Young Deok CHO ; Hong Soo KIM ; Boo Sung KIM
Journal of Liver Cancer 2017;17(1):72-76
Hepatocellular carcinoma (HCC) is the 2nd most common cause of cancer related death in Korea and well-known malignancy with poor prognosis. Sorafenib is the first-line molecular targeted agent in patients with extra-hepatic spread of HCC. However, complete response is extremely rare in patients treated with sorafenib and the disease control rate is only 43%. We report a 53-year-old man with advanced HCC with pulmonary metastasis who showed complete response by cytotoxic chemotherapy with doxorubicin and cisplatin with relatively tolerable adverse effects after failure of treatment with sorafenib.
Carcinoma, Hepatocellular*
;
Cisplatin
;
Doxorubicin
;
Drug Therapy*
;
Humans
;
Korea
;
Middle Aged
;
Neoplasm Metastasis*
;
Prognosis
5.Effects of Ficus carica paste on constipation induced by a high-protein feed and movement restriction in beagles.
Hong Geun OH ; Hak Yong LEE ; Min Young SEO ; Young Rye KANG ; Jung Hoon KIM ; Jung Woo PARK ; Ok Jin KIM ; Hyang Im BACK ; Sun Young KIM ; Mi Ra OH ; Soo Hyun PARK ; Min Gul KIM ; Ji Young JEON ; Min Ho HWANG ; Sook Jeong SHIN ; Soo Wan CHAE
Laboratory Animal Research 2011;27(4):275-281
Constipation is one of the most common functional digestive complaints worldwide. We investigated the laxative effects of figs (Ficus carica L) in a beagle model of constipation induced by high protein diet and movement restriction. The experiments were consecutively conducted over 9 weeks divided into 3 periods of 3 weeks each. All 15 beagles were subjected to a non-treatment (control) period, a constipation induction period, and a fig paste treatment period. We administered fig paste (12 g/kg daily, by gavage) for 3 weeks following a 3-week period of constipation induction in dogs. Segmental colonic transit time (CTT) was measured by counting radiopaque markers (Kolomark) using a radiograph performed every 6 h after feeding Kolomark capsules, until capsules were no longer observed. Fig paste significantly increased fecal quantity in constipated dogs, and segmental CTT was also reduced following fig paste administration. There were no significant differences in feed intake, water intake, body weight, or blood test results, between the constipation and fig paste administration periods. Our results demonstrate that fig is an effective treatment for constipation in beagles. Specifically, stool weight increased and segmental CTT decreased. Fig pastes may be useful as a complementary medicine in humans suffering from chronic constipation.
Animals
;
Body Weight
;
Capsules
;
Carica
;
Colon
;
Complementary Therapies
;
Constipation
;
Diet
;
Dogs
;
Drinking
;
Ficus
;
Hematologic Tests
;
Humans
;
Ointments
;
Stress, Psychological
6.Cardiac Troponin T Elevation After Stroke: Relationships Between Elevated Serum Troponin T, Stroke Location, and Prognosis.
Hwa Suk SONG ; Jang Hyun BACK ; Dong Kwan JIN ; Pil Wook CHUNG ; Heui Soo MOON ; Bum Chun SUH ; Yong Bum KIM ; Byung Moon KIM ; Hee Yeon WOO ; Yong Taek LEE ; Kwang Yeol PARK
Journal of Clinical Neurology 2008;4(2):75-83
Background and Purpose: Elevation of serum cardiac troponin T (cTnT) is regarded as a specific marker of acute coronary syndrome. Serum cTnT can be increased in patients with acute ischemic stroke, but its clinical implications remain unclear. The aim of this study was to identify the relationships between elevated cTnT and stroke severity, location, and prognosis. Methods: From January 2005 to December 2006, this study recruited 455 consecutive patients who were admitted to Kangbuk Samsung Hospital due to acute ischemic stroke within 3 days of onset, which was confirmed by diffusion magnetic resonance imaging. A total of 416 patients was finally included and divided into 2 groups: an elevated cTnT group (n=45) and a normal cTnT group (n=371). The short-term prognosis was assessed by 30-day modified Rankin Scale responder analysis was compared between the two groups. Results: Serum cTnT was elevated in 10.8% of cases, with elevated cTnT associated with greater stroke severity, as assessed by the National Institutes of Health Stroke Scale score, Insular-lobe involvement was more common in patients with elevated cTnT than in the normal cTnT group. Short-term prognosis was more unfavorable in the elevated cTnT group than in the normal cTnT group. Multivariate regression analysis indicated that elevated cTnT was independently related to insular involvement, cardioembolism, and unfavorable outcome. Conclusions: Elevated cTnT in acute ischemic stroke was associated with severe neurological deficits at stroke onset and damages to the insular lobe. The outcome of acute ischemic stroke was worse for patients with elevated cTnT than for those with normal cTnT. The pathomechanism underlying acute ischemic stroke and subclinical myocardial damage warrants further study.
Acute Coronary Syndrome
;
Diffusion Magnetic Resonance Imaging
;
Humans
;
National Institutes of Health (U.S.)
;
Prognosis
;
Stroke
;
Troponin
;
Troponin T
7.A case of primary peritoneal origin malignant mixed mullerian tumor.
Jun Woo AHN ; Yong Soon KWON ; Kun Yong KONG ; Su Jin BACK ; Ae Ra HAN ; Young Tak KIM ; Joo Hyun NAM
Korean Journal of Obstetrics and Gynecology 2007;50(9):1284-1288
Malignant mixed mullerian tumor (MMMT) is rare and has pathologically carcinoma and sarcoma components. Among them, primary peritoneal MMMTs are extremely rare, and their proper treatment and prognosis are not well-known. We experienced a case of primary peritoneal origin MMMT, so we report it with a brief review of the literatures.
Peritoneum
;
Prognosis
;
Sarcoma
8.Changes of Regional Cerebral Blood Flow in Left Anterior Thalamic Infarction: Analysis of 99mTc-Ethyl Cysteinate Dimer (ECD) SPECT by using Statistical Parametric Mapping.
Yong Soo SHIM ; Dong Won YANG ; Beum Saeng KIM ; Young Min SHON ; Woo Jun KIM ; See Back LEE ; Yong An CHUNG ; Hyung Sun SOHN
Journal of the Korean Neurological Association 2005;23(3):307-312
BACKGROUND: The thalamus has multiple connections with areas of the cerebral cortex involved in arousal and cognition. Thalamic damage has been reported to be associated with variable neuropsychological dysfunctions and dementia. This study investigates the changes of regional cerebral blood flow (rCBF) by using SPM analysis of 99mTc-ECD SPECT and examining the neuropsychological abnormalities of 4 patients with anterior thalamic infarctions. METHODS: Four patients with left anterior thalamic infarctions and eleven normal controls were evaluated. K-MMSE and the Seoul Neuropsychological Screening Battery were performed within 2 days after stroke. The normalized SPECT data of 4 patients were compared to those of 11 controls for the detection of areas with decreased rCBF by SPM analysis. RESULTS: All 4 patients showed anterograde amnesia in their verbal memory, which was not improved by recognition. Dysexecutive features were occasionally present, such as decreased word fluency and impaired Stroop test results. SPM analysis revealed decreased rCBF in the left supramarginal gyrus, the superior temporal gyrus, the middle and inferior frontal gyrus, the medial dorsal and anterior nucleus of the left thalamus. CONCLUSIONS: The changes of rCBF in patients with left anterior thalamic infarctions may be due to the remote suppression on metabolism by the interruption of the cortico-subcortial circuit, which connects the anterior thalamic nucleus and various cortical areas. The executive dysfunction and dysnomia may be caused by the left dorsolateral frontal dysfunction of the thalamocortical circuit. Anterograde amnesia with storage deficit may be caused by the disruption of mamillothalamic tract.
Amnesia, Anterograde
;
Anomia
;
Arousal
;
Cerebral Cortex
;
Cognition
;
Dementia
;
Humans
;
Infarction*
;
Mass Screening
;
Memory
;
Metabolism
;
Seoul
;
Stroke
;
Stroop Test
;
Thalamus
;
Tomography, Emission-Computed, Single-Photon*
9.Autoradiographic Investigation for 3H-Thymidine Labeling Indicies of gamma-Glutamyl Transpeptidase Positive Foci during the Rat Liver Carcinogenesis.
Kee Woon KWEON ; Hong Joo KIM ; Soong Hwan LEE ; Yeong Jung CHO ; Jong Cheol KIM ; Sung Woo KIM ; Hee Soo KIM ; In Gyu BACK ; Cheol Hun JUNG ; Yong Hyeon JO ; Chang Woo GHAM ; Dong Hoo LEE
The Korean Journal of Hepatology 1998;4(2):162-178
No abstract available.
Animals
;
Autoradiography
;
Carcinogenesis*
;
Diethylnitrosamine
;
gamma-Glutamyltransferase*
;
Liver*
;
Rats*
10.Autoradiographic Investigation for 3H-Thymidine Labeling Indicies of gamma-Glutamyl Transpeptidase Positive Foci during the Rat Liver Carcinogenesis.
Kee Woon KWEON ; Hong Joo KIM ; Soong Hwan LEE ; Yeong Jung CHO ; Jong Cheol KIM ; Sung Woo KIM ; Hee Soo KIM ; In Gyu BACK ; Cheol Hun JUNG ; Yong Hyeon JO ; Chang Woo GHAM ; Dong Hoo LEE
The Korean Journal of Hepatology 1998;4(2):162-178
No abstract available.
Animals
;
Autoradiography
;
Carcinogenesis*
;
Diethylnitrosamine
;
gamma-Glutamyltransferase*
;
Liver*
;
Rats*

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