1.Subepidermal Calcified Nodule.
Seung Hye PAEK ; Yong Hyun KIM ; Do Won KIM ; Jae Bok JUN ; Sang Lip CHUNG
Annals of Dermatology 1996;8(4):269-271
Subepidermal calcified nodule(SCN) is a form of calcinosis cutis which is usually present as a single small, raised, hard nodule with verrucous surface. A 13-year-old girl presented with a 10-month history of a ricegrain-sized, hard, yellowish white papule on both upper eyelids. The lesions were asymptomatic and had increased slowly in size. An excisional biopsy specimen of the left upper eyelid showed acanthosis and narrow pointed rete ridges of the epidermis, and closely aggregated deposition of basophilic material in the uppermost dermis. The material in the dermis did not stain with von Kossa. It was confirmed as calcium deposition by staining with alizarin red S which is far more specific for calcium than the von Kossa stain.
Adolescent
;
Basophils
;
Biopsy
;
Calcinosis
;
Calcium
;
Dermis
;
Epidermis
;
Eyelids
;
Female
;
Humans
2.Cutaneous Horn Originated from Condyloma Acuminata.
Yong Hyun KIM ; Seung Hye PAEK ; Jae Bok JUN ; Sang Lip CHUNG
Korean Journal of Dermatology 1996;34(5):851-855
We report a case of cutaneous horn originated frorn condyloma acuminata in a 25 year-old man. The patient showed yellowish brown hyperkeratotic masses on the prepuce, coronal sulcus and multiple asymptomatic pinkish cauliflower-like projections in both inguinal folds and perianal area. Skin biopsies were taken from the base of the penile lesions andinguinal, perianal area exhibited marked hyperkeratosis and parakeratosis in addition to the typical findings of condylorna acuminaturn. In situ hybridization technique for Human papilloma virus(HPV) showed positive reaction to HPV 11. All lesions were removed by surgical excision, electrocauterization and podophyllin application, but condyloma acuminatum recurred several times thereafter.
Adult
;
Animals
;
Biopsy
;
Horns*
;
Human papillomavirus 11
;
Humans
;
In Situ Hybridization
;
Papilloma
;
Parakeratosis
;
Podophyllin
;
Skin
3.Mitochondrial Dysfunction of Immortalized Human Adipose Tissue-Derived Mesenchymal Stromal Cells from Patients with Parkinson's Disease.
Hyo Eun MOON ; Seung Hee YOON ; Yong Suk HUR ; Hyung Woo PARK ; Ji Young HA ; Kyung Hee KIM ; Jung Hee SHIM ; Seung Hyun YOO ; Jin H SON ; Seung Leal PAEK ; In Keyoung KIM ; Jae Ha HWANG ; Dong Gyu KIM ; Han Joon KIM ; Beom Seok JEON ; Sung Sup PARK ; Sun Ha PAEK
Experimental Neurobiology 2013;22(4):283-300
Mitochondrial dysfunction in dopaminergic neurons of patients with idiopathic and familial Parkinson's disease (PD) is well known although the underlying mechanism is not clear. We established a homogeneous population of human adipose tissue-derived mesenchymal stromal cells (hAD-MSCs) from human adult patients with early-onset hereditary familial Parkin-defect PD as well as late-onset idiopathic PD by immortalizing cells with the hTERT gene to better understand the underlying mechanism of PD. The hAD-MSCs from patients with idiopathic PD were designated as "PD", from patients with Parkin-defect PD as "Parkin" and from patients with pituitary adenomas as "non-PD" in short. The pGRN145 plasmid containing hTERT was introduced to establish telomerase immortalized cells. The established hTERT-immortalized cell lines showed chromosomal aneuploidy sustained stably over two-years. The morphological study of mitochondria in the primary and immortalized hAD-MSCs showed that the mitochondria of the non-PD were normal; however, those of the PD and Parkin were gradually damaged. A striking decrease in mitochondrial complex I, II, and IV activities was observed in the hTERT-immortalized cells from the patients with idiopathic and Parkin-defect PD. Comparative Western blot analyses were performed to investigate the expressions of PD specific marker proteins in the hTERT-immortalized cell lines. This study suggests that the hTERT-immortalized hAD-MSC cell lines established from patients with idiopathic and familial Parkin-defect PD could be good cellular models to evaluate mitochondrial dysfunction to better understand the pathogenesis of PD and to develop early diagnostic markers and effective therapy targets for the treatment of PD.
Adult
;
Aneuploidy
;
Blotting, Western
;
Cell Line
;
Diagnosis
;
Dopaminergic Neurons
;
Humans*
;
Mesenchymal Stromal Cells*
;
Mitochondria
;
Parkinson Disease*
;
Pituitary Neoplasms
;
Plasmids
;
Strikes, Employee
;
Telomerase
4.Early Experience of Pre- and Post-Contrast 7.0T MRI in Brain Tumors.
Seung Leal PAEK ; Young Seob CHUNG ; Sun Ha PAEK ; Jae Ha HWANG ; Chul Ho SOHN ; Seung Hong CHOI ; Young Don SON ; Young Bo KIM ; Dong Gyu KIM ; Kendall H LEE ; Zang Hee CHO
Journal of Korean Medical Science 2013;28(9):1362-1372
We investigated the safety and clinical applicability of 7.0 Tesla (T) brain magnetic resonance imaging (MRI) in patients with brain tumors. Twenty-four patients with intraaxial or extraaxial brain tumors were enrolled in this study. 7.0T MRIs of T2*-weighted axial and T1-weighted coronal or sagittal images were obtained and compared with 1.5T brain MRIs. The T2*-weighted images from 7.0T brain MRI revealed detailed microvasculature and the internal contents of supratentorial brain tumors better than that of 1.5T brain MRI. For brain tumors located in parasellar areas or areas adjacent to major cerebral vessels, flow-related artifacts were exaggerated in the 7.0T brain MRIs. For brain tumors adjacent to the skull base, susceptibility artifacts in the interfacing areas of the paranasal sinus and skull base hampered the aquisition of detailed images and information on brain tumors in the 7.0T brain MRIs. This study shows that 7.0T brain MRI can provide detailed information on the intratumoral components and margins in supratentorial brain tumors. Further studies are needed to develop refined MRI protocols for better images of brain tumors located in the skull base, parasellar, and adjacent major cerebrovascular structures.
Adult
;
Brain Neoplasms/*radiography
;
Dizziness/etiology
;
Female
;
Headache/etiology
;
Humans
;
Magnetic Resonance Imaging/adverse effects
;
Male
;
Middle Aged
;
Muscle Contraction/radiation effects
5.Long-term Results of Surgical Treatment of Craniopharyngioma: Experience with 100 Adult Patients.
Jae Seung BANG ; Hee Won JUNG ; Dong Gyu KIM ; Ho Shin GWAK ; Sun Ha PAEK ; Young Seob CHUNG ; Seung Koan HONG
Journal of Korean Neurosurgical Society 2001;30(4):472-478
OBJECTIVES: The authors present a retrospective analysis of 100 consecutive adult patients harboring craniopharyngiomas who underwent microsurgical resection between 1981 and 1999 to assess the long-term outcome of surgical treatment and to determine the most optimal management strategy. METHODS: The extent of surgical removal was divided into four categories; GTR(gross total removal), RSTR(radical subtotal removal), STR(subtotal removal),and PR(partial removal). The median follow-up period was 50 months(4-198). CT scan and/or MR imaging and hormonal status were evaluated to the last follow-up. RESULTS: Visual disturbance was the most common presentation, which was improved in 42 cases and aggravated in 19 cases following the operation. Hypopituitarism was detected in 56 patients preoperatively, 82 during the immediate postoperative period, and 76 at the last follow-up. Improvement of pituitary function was not observed in any of these patients. Twenty of 100 patients showed recurrence at the mean of 27 months(3 to 196). The median progression-free survival(PFS) time of all patients was 145 months and 5-year PFS rate was 74%. Five-year PFS rate of GTR or RSTR group(71%) was significantly higher than that of STR or PR group(30%)(p=0.01). Postoperative radiation therapy significantly prolonged the PFS from 94 months in non-radiation group to 182 months(p=0.002). However, there was no statistical difference in number of patients who required hormonal replacement therapy between radiation and non-radiation group. CONCLUSION: Visual disturbance can be improved by early diagnosis and surgical decompression. GTR or RSTR in selected patients is considered a proper surgical strategy. Post-operative radiation therapy for residual tumors must be considered, although the ideal timing of radiation therapy is to be determined.
Adult*
;
Craniopharyngioma*
;
Decompression, Surgical
;
Early Diagnosis
;
Follow-Up Studies
;
Humans
;
Hypopituitarism
;
Magnetic Resonance Imaging
;
Neoplasm, Residual
;
Postoperative Period
;
Recurrence
;
Retrospective Studies
;
Tomography, X-Ray Computed
6.COMP-Ang1 Potentiates EPC Treatment of Ischemic Brain Injury by Enhancing Angiogenesis Through Activating AKT-mTOR Pathway and Promoting Vascular Migration Through Activating Tie2-FAK Pathway.
Hyo Eun MOON ; Kyunghee BYUN ; Hyung Woo PARK ; Jin Hyun KIM ; Jin HUR ; Joong Shin PARK ; Jong Kwan JUN ; Hyo Soo KIM ; Seung Leal PAEK ; In Keyoung KIM ; Jae Ha HWANG ; Jin Wook KIM ; Dong Gyu KIM ; Young Chul SUNG ; Gou Young KOH ; Chang W SONG ; Bonghee LEE ; Sun Ha PAEK
Experimental Neurobiology 2015;24(1):55-70
Successful recovery from brain ischemia is limited due to poor vascularization surrounding the ischemic zone. Cell therapy with strong angiogenic factors could be an effective strategy to rescue the ischemic brain. We investigated whether cartilage oligomeric matrix protein (COMP)-Ang1, a soluble, stable and potent Ang1 variant, enhances the angiogenesis of human cord blood derived endothelial progenitor cells (hCB-EPCs) for rescuing brain from ischemic injury. COMP-Ang1 markedly improved the tube formation of capillaries by EPCs and incorporation of EPCs into tube formation with human umbilical vein endothelial cells (HUVECs) upon incubation on matrigel in vitro. COMP-Ang1 stimulated the migration of EPCs more than HUVECs in a scratch wound migration assay. The transplanted EPCs and COMP-Ang1 were incorporated into the blood vessels and decreased the infarct volume in the rat ischemic brain. Molecular studies revealed that COMP-Ang1 induced an interaction between Tie2 and FAK, but AKT was separated from the Tie2-FAK-AKT complex in the EPC plasma membrane. Tie2-FAK increased pp38, pSAPK/JNK, and pERK-mediated MAPK activation and interacted with integrins alphanubeta3, alpha4, beta1, finally leading to migration of EPCs. AKT recruited mTOR, SDF-1, and HIF-1alpha to induce angiogenesis. Taken together, it is concluded that COMP-Ang1 potentiates the angiogenesis of EPCs and enhances the vascular morphogenesis indicating that combination of EPCs with COMP-Ang1 may be a potentially effective regimen for ischemic brain injury salvage therapy.
Angiogenesis Inducing Agents
;
Animals
;
Blood Vessels
;
Brain
;
Brain Injuries*
;
Brain Ischemia
;
Capillaries
;
Cartilage Oligomeric Matrix Protein
;
Cell Membrane
;
Cell- and Tissue-Based Therapy
;
Fetal Blood
;
Human Umbilical Vein Endothelial Cells
;
Humans
;
Integrins
;
Ischemia
;
Morphogenesis
;
Rats
;
Salvage Therapy
;
Stem Cells
;
Wounds and Injuries
7.Effect of fermented soybean products intake on the overall immune safety and function in mice.
Jae Hee LEE ; Se Hee PAEK ; Hye Won SHIN ; Seung Yeon LEE ; Byoung Seok MOON ; Jung Eun PARK ; Gyeong Dong LIM ; Chang Yul KIM ; Yong HEO
Journal of Veterinary Science 2017;18(1):25-32
Various functional activities have been reported for the fermented soybean products doenjang (DJ) and cheonggukjang (CGJ), although no systemic investigations of their immune functions have been conducted to date. We examined the effects of an experimental diet of DJ, CGJ, or a mixture of unfermented raw material for 4 weeks on overall immunity and immune safety in mice. No significant alterations were observed in peripheral or splenic immune cells among groups. Enhanced splenic natural killer cell activity was observed in the DJ and CGJ groups compared with the plain diet group. T helper type-1 (Th1)-mediated immune responses were enhanced in the DJ and CGJ groups with an upregulated production ratio of IFN-γ vs. IL-4 and IgG2a vs. IgG1 in stimulated splenic T and B cells, respectively. Resistance to Listeria monocytogenes infection was observed in the DJ and CGJ groups. Overall, the results of this study suggest that DJ and CGJ intake consolidates humoral and cellular immunity to Th1 responses.
Animals
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B-Lymphocytes
;
Diet
;
Immunity, Cellular
;
Immunoglobulin G
;
Interleukin-4
;
Killer Cells, Natural
;
Listeria monocytogenes
;
Mice*
;
Soybeans*
8.Changes of lip morphology following mandibular setback surgery using 3D cone-beam computed tomography images.
Seung Jae PAEK ; Ji Yong YOO ; Jang Won LEE ; Won Jong PARK ; Young Deok CHEE ; Moon Gi CHOI ; Eun Joo CHOI ; Kyung Hwan KWON
Maxillofacial Plastic and Reconstructive Surgery 2016;38(10):38-
BACKGROUND: The aims of this study are to evaluate the lip morphology and change of lip commissure after mandibular setback surgery (MSS) for class III patients and analyze association between the amount of mandibular setback and change of lip morphology. METHODS: The samples consisted of 14 class III patients treated with MSS using bilateral sagittal split ramus osteotomy. Lateral cephalogram and cone-beam CT were taken before and about 6 months after MSS. Changes in landmarks and variables were measured with 3D software program Ondemand™. Paired and independent t tests were performed for statistical analysis. RESULTS: Landmarks in the mouth corner (cheilion, Ch) moved backward and downward (p < .005, p < .01). However, cheilion width was not statistically significantly changed. Landmark in labrale superius (Ls) was not altered significantly. Upper lip prominence angle (ChRt-Ls-ChLt °) became acute. Landmarks in stomion (Stm), labrale inferius (Li) moved backward (p < .005, p < .001). Lower lip prominence angle (ChRt-Li-ChLt °) became obtuse (p < .001). Height of the upper and lower lips was not altered significantly. Length of the upper lip vermilion was increased (p =< 0.01), and length of the lower lip vermilion was decreased (p < .05). Lip area on frontal view was not statistically significantly changed, but the upper lip area on lateral view was increased and change of the lower lip area decreased (p > .05, p < .005). On lateral view, upper lip prominent point (UP) moved downward and stomion moved backward and upward and the angle of Ls-UP-Stm (°) was decreased. Lower lip prominent point (LP) moved backward and downward, and the angle of Stm-LP-Li (°) was increased. Li moved backward. Finally, landmarks in the lower incisor tip (L1) moved backward and upward, but stomion moved downward. After surgery, lower incisor tip (L1) was positioned more superiorly than stomion (p < .05). There were significant associations between horizontal soft tissue and corresponding hard tissue. The posterior movement of L1 was related to statistically significantly about backward and downward movement of cheilion. CONCLUSIONS: The lip morphology of patients with dento-skeletal class III malocclusion shows a significant improvement after orthognathic surgery. Three-dimensional lip morphology changes in class III patients after MSS exhibited that cheilion moved backward and downward, upper lip projection angle became acute, lower lip projection angle became obtuse, change of upper lip area on lateral view was increased, change of lower lip area decreased, and morphology of lower lip was protruding. L1 was concerned with the lip tissue change in statistically significant way.
Cone-Beam Computed Tomography*
;
Humans
;
Incisor
;
Lip*
;
Malocclusion
;
Mouth
;
Orthognathic Surgery
;
Osteotomy, Sagittal Split Ramus
9.Advantages of intraoral and transconjunctival approaches for posterior displacement of a fractured zygomaticomaxillary complex.
Ji Yong YOO ; Jang Won LEE ; Seung Jae PAEK ; Won Jong PARK ; Eun Joo CHOI ; Kyung Hwan KWON ; Moon Gi CHOI
Maxillofacial Plastic and Reconstructive Surgery 2016;38(10):36-
BACKGROUND: Fracture of the zygomaticomaxillary complex (ZMC) is one of the most common facial injuries. A previous study has performed 3D analyses of the parallel and rotational displacements that occur in a fractured ZMC. However, few studies have investigated adequate fixation methods according to these displacements. Here, we assessed whether specific approaches and fixation methods for displacement of ZMC fractures produce esthetic results. METHODS: Hospital records and pre- and post-surgical computed tomographic scans of patients treated for ZMC fractures at the Department of Oral and Maxillofacial Surgery, College of Dentistry, Wonkwang University, between January 2010 and December 2015, were selected. Data were analyzed according to the direction of displacement and post-reduction prognosis using a 3D software. RESULTS: With ZMC fractures, displacement in the posterior direction occurred most frequently, while displacement in the superior-inferior direction was rare. A reduction using a transconjunctival approach and an intraoral approach was statistically better than that using an intraoral approach, Gillies approach, and lateral canthotomy approach for a posterior displacement (P<0.05). CONCLUSIONS: When posterior displacement of a fractured ZMC occurs, use of an intraoral approach and transconjunctival approach simultaneously is recommended for reducing and fixing the displaced fragment accurately.
Dentistry
;
Facial Injuries
;
Hospital Records
;
Humans
;
Prognosis
;
Surgery, Oral
10.Arm Span-Height Relationship for Prediction of Spirometric Values in Korean Adult Women.
Won Jung KOH ; Young Su JU ; Tae Yub KIM ; Jae Sung PARK ; Seung Do YU ; Kwaung Soo CHOI ; Domyung PAEK ; Sung Koo HAN ; Young Soo SHIM
Tuberculosis and Respiratory Diseases 1999;46(6):786-794
BACKGROUND: Arm span measurements provide a practical substitute for standing height to predict normal spirometric values in subjects unable to stand or those with a skeletal deformity such as kyphoscoliosis. The relationship between arm span and height has previously been reported as either a fixed ratio unaffected by age or as a regression equation in which the ratio varies as a function of age. The fixed ratio or regression equation is known to be specific for sex and race. METHODS: We studied the relationship between standing height, arm span, and age in 381 Korean adult female subjects (ages 20 to 69 yrs) sampled in a general population. RESULTS: The mean ratio for arm span to height is 1.004. Multiple linear analysis found arm span and age to be predictive of standing height (p=0.0001, r2=0.76). We performed the analysis of the difference between the predicted height using either fixed ratio or regression equation and actual height. At the extremes of arm span and age, the ratio method either underestimated (at smaller arm span or younger age) or overestimated (at larger arm span or older age) as compared with actual height (p=0.0001). CONCLUSION: This results indicate that the estimated height using the fixed ratio method provides a less acceptable method of estimating height for the prediction of lung volumes in the Korean adult women when compared with the regression equations, especially at the extremes of stature or age.
Adult*
;
Arm*
;
Congenital Abnormalities
;
Continental Population Groups
;
Female
;
Humans
;
Lung
;
Spirometry